Methods and systems for door access and patient monitoring
Contents
1. 02 SLIVINO9 BS f aye YATIONLNOD Jf ANH pz 8000 CJOMINOO Seo ee el ee ee EE A red W3ISAS W3iSAS PNIS U3LLINSNYHIL NOU VMH3dO i ONIDVd i 5 7 suNn3Avis 8 i LUNN AYOSIANIANS Nouvis sunnaavis gh 61 P d SE G u3ovd Eno RR S UE m US 8 436 727 B2 Sheet 4 of 11 May 7 2013 U S Patent 914 ttt ttt I mm n n mam m m n m P PN ISP SP S S d d e eee ees A Amn nt COL t AAA A AAA 4 ud 89 EQ UBI MOLUASNVYL eee 99 v9 US 8 436 727 B2 Sheet 5 of 11 May 7 2013 U S Patent S Sia ATOM NIYI TINTON snivis WW IV POR ES de ot v6 IRE ARE e INGON s 854009 4000 ev ONISOINOW a 8300 WOIO3IN AA rr HOSSIDONA Me A A A AENA WALSAS ONIHOLINOIW US 8 436 727 B2 Sheet 6 of 11 May 7 2013 U S Patent OIN 9 8 Eon AlddS YIMOd OL 86 AY138 AY ZAVISY 9 913 ON 2 2 OND ON bo y UR ONIDVd OL 2 dd2. O OL 34804024401 21 YN NO 804 OL Rope N ON Or d k E EN 8 H3 gt N38 2 8 51 8 vc M 9 90 Ave OL Woe en e N 892 58300 3009 66 MELSAS _ NOLLWLS ONIHOLINOWN 9 8l US 8 436 727 B2 Sheet 7 of 11 May 7 2013 U S Patent FALL SAFE OPERATION SYSTEM ent pn 2 ilc as gt M S M ae 5 DESEE 5 5 AE 4 ko qa BE B 8 mand 222212 ae ON 9 ON 9 6 ON 2 gH 1 S c 984 9 ono on 0 omo ae jo mw A 224 TT 9 ON 2 2 TUE say say ON 9 RI FC E FIG 7 US 8 436 727 B2 Sheet 8 of 11 May 7 2013 U S Patent HOIVW lt N0035 7 4 BLE e 009 ONIBOLINONWN OL MOO1 WNOIS 940935 30l 30 ONIHOLINON ANALYS PATAN WALSAS Sivniov T d MET ava OL AMISNVHI
3. 5 The method of claim 1 further comprising preventing the display of the door location data and iden tification data encoded in the second signal if the door location data encoded in the third signal does not match the door location data encoded in the second signal 6 The method of claim 1 further comprising transmitting the third signal for display on one or more pagers if the door location data encoded in the third signal matches the door location data encoded in the second signal 7 The method of claim 6 wherein the one or more pagers display the door location data and the identification data encoded in the second signal 8 The method of claim 1 wherein the first source is a door access control system that controls and monitors access to the door and the second source is a monitoring device coupled to the person wherein the monitoring device includes the iden tification data of the person coupled to the monitoring device 9 The method of claim 1 further comprising 15 20 25 30 35 40 45 50 55 60 65 12 clearing the second signal from the display after the door location data and the identification data are displayed 10 The method of claim 1 further comprising resetting the second source at the first source after the door location data and identification data are displayed wherein resetting the second source permits the second source to transmit another second signal in response t
4. SNOIOnHISNI Ax tdsia qo 92 o ne 2 2 2 4 2 a 4 2 4 1 2 0 a US 8 436 727 B2 1 METHODS AND SYSTEMS FOR DOOR ACCESS AND PATIENT MONITORING RELATED APPLICATIONS This application takes priority to U S Patent Application No 61 247 327 filed Sep 30 2009 and entitled Methods and Systems for Door Access and Patient Monitoring the entire contents of which are incorporated herein by reference FIELD This application relates to methods and systems for door access and patient monitoring and more specifically to meth ods and systems for door access and monitoring of patients in controlled access environment BACKGROUND Healthcare facilities including hospitals nursing homes and assisted living residences have often encountered prob lems with patients residents either intentionally or inadvert ently leaving designated areas or facility grounds Concerns with wandering patients are particularly prevalent when those patients have Alzheimer s disease as the disease is one of the most common forms of dementia causing both memory loss and general confusion Many healthcare facilities today have door access and monitoring systems to alleviate the problems with wandering patients but those systems are often simplistic and not mul tifaceted Some healthcare facilities have spec
5. device 20 in close proximity to door 22 In one embodiment the door transmitter 24 may also be hardwired to an outside antenna 41 that is always operational and permits transmis sion of the first signal 96 by the door transmitter 24 outside of the facility 15 or receive the second signal 97 transmitted by the patient monitoring device 20 in response to the first signal 96 The door access control system 17 may further include a control device 42 such as a keypad keyfob card access or similar device that controls a magnetic lock 50 that locks down the door 22 and prevents the door 22 from being opened when in the closed position The control device 42 also actu ates a local buzzer 43 for providing a local audio alarm near the door 22 in order to alert facility staff when certain condi tions have occurred such as the door 22 being opened in the presence of a patient wearing a patient monitoring device 20 who is detected by the motion detector 44 The control device 42 may also has a user interface not shown such as a numerical pad that permits a user to enter an access code to unlock the magnetic lock 50 or reset the patient monitoring device 20 after actuation by the door access control system 17 In one embodiment another control device 42 may be provided along the opposite or outside portion of the door 22 for controlling the operation of the door 22 In an embodi ment the control device 42 may be a 2000 Series e eM Key pad manufa
6. a processor 75 e g a central processing unit CPU a graphics processing unit GPU or both a main memory 77 and a static memory 79 which communicate with each other via a bus 71 The computer system 200 may further include a display 83 e g a liquid crystal display LCD or a cathode ray tube CRT The computer system 200 also includes a user interface 87 e g keyboard and mouse a drive unit 88 a wireless inter face unit 85 and a supervisory device interface 81 for inter facing with the supervisory unit 25 The drive unit 88 includes a computer readable storage medium 90 on which is stored one or more sets of instructions 92 embodying any one or more of the methodologies or functions described herein The instructions 92 e g soft ware may also reside completely or at least partially within the main memory 77 during execution thereof by the com puter system 200 the main memory 77 and the processor 75 also constituting computer readable storage medium or machine readable media While the machine readable storage medium 1022 is shown in an example embodiment to be a single medium the term machine readable storage medium should be taken to include a single medium or multiple media e g a centralized or distributed database and or associated caches and servers that store the one or more sets of instructions The term machine readable storage medium shall also be taken to include any medium that is capable
7. alarm status module 94 will not display the data 70 and 72 encoded in the second signal 99 transmitted by the patient monitoring device 20 to the monitoring system 16 With respect to the third scenario when the patient is not present but a person not coupled to the patient monitoring device 20 opens the door 22 the door contacts 48 will be triggered but the STA INPUT device 60 will not transmit the third signal 99 to the monitoring system 16 since the relay 20 25 30 35 40 45 50 55 60 65 8 controller 26 has not received the second signal 97 from any patient monitoring device 20 within vicinity of the inside antenna 40 As such only a first signal 96 generated by the presence of the person triggering the motion detector 44 will be transmitted but no third signal 99 will be transmitted since no second signal 97 was ever transmitted since no person coupled to a patient monitoring device 20 was detected by the door access control system 17 Referring to FIGS 5 and 8 the operation of the door access control application 90 that is stored in the computer readable storage medium 73 and executed by processor 75 will be discussed in greater detail As noted above the door access control application 90 includes the door access module 93 that controls the operation of the door access control system 17 the alarm status module 94 that either displays or clears the second signal 97 and the monitoring module 95 that prov
8. and the identification data upon receiving the sec ond signal from the monitoring device and monitoring system for receiving the second signal trans mitted by the monitoring device and the third signal transmitted by the door access control system the moni toring system including a processor for executing an application stored on a computer readable storage medium that compares the door location data encoded in the second signal with the door location data encoded in the third signal for determining whether to display the door location data and the identification data encoded in the second signal 22 The system of claim 21 further comprising a wireless network in communication with the monitoring device for communicating the second signal to the moni 20 25 30 35 40 14 toring system the wireless network including a master station in communication with one or more slave units 23 The system of claim 21 wherein the antenna is actuated upon detection of a person within the predetermined distance from the door 24 The system of claim 21 wherein the antenna is actuated upon the door being in the open position 25 The system of claim 21 wherein the monitoring system locks down the door upon detection of the person within the predetermined distance of the door 26 The system of claim 21 wherein the door access con trol system further comprises door access control unit having a door transmitter elec tronica
9. determines whether the predetermined time delay has expired If the time delay has expired then at block 114 the timer relay 46 deactivates the magnetic lock 50 and permits the door 22 to be opened before returning to START In addition when the patient monitoring device 20 has trans mitted the second signal 97 to the monitoring system 16 then the door access and monitoring application 90 determines at decision point 116 whether the data encoded in the second signal 97 matches the data encoded in the third signal 99 If there is a match between signals 97 and 99 then at block 118 the door access and monitoring application 90 displays the door location data 70 and patient identification data 72 at master station 18 and slave units 19 However if there is no match between the two signals 97 and 99 the alarm status module 94 will clear the signals and no display of data will occur at the master station 18 and slave stations 19 However if the door access and monitoring application 90 determines at decision point 102 that the door is closed then at decision point 122 application 90 will determine whether a person is present and in close proximity to the door 22 If not then the door access and monitoring application 90 returns to START however if a person is present then the inside antenna 40 is activated at block 124 before proceeding to block 108 as discussed above Referring to FIG 9 the operation of the fail safe operation system
10. door access control system 17 to prevent the door 22 from being opened once the door 22 is closed In other embodiments the door 22 may be locked down at all times unless an access code is entered into the door access control system 17 As also used herein the term door may refer to any swinging or sliding barrier by which an entry is closed and opened or hallway leading to a non designated area Referring to FIGS 1 2 3 and 4 each patient monitoring device 20 includes a receiver 68 for receiving a first signal 96 transmitted by the door access control system 17 whenever any person coupled to a patient monitoring device 20 comes within close proximity of a door 22 having a door access control system 17 Moreover the patient monitoring device 20 has a memory 64 including patient identification data 72 for identifying the patient wearing or otherwise coupled to a particular patient monitoring device 20 The patient monitor ing device 20 further includes a transmitter 66 that transmits the second signal 97 encoded with patient identification data US 8 436 727 B2 3 72 stored in memory 64 as well as the door location data 70 that was originally encoded in the first signal 96 transmitted by the door access control system 17 to the patient monitoring device 20 The second signal 97 is transmitted directly to the door access control system 17 as well as being transmitted to a monitoring system 16 through a wireless network 13 in response
11. of the patient monitoring system 10 the door access control system 17 may be considered a first source for transmitting the first signal 96 coupled to a patient encoded with door location data 70 when the presence ofa person is detected by the motion detector 44 while the patient monitoring device 20 may be considered a second source that receives the first signal 96 transmitted by the first source In response to receiving the first signal 96 the second source simultaneously transmits the second signal 97 encoded with the door location data 70 and patient identifi cation data 72 to a third source such as the monitoring system 16 as well as the first source such as the door access control system 17 When the first source door access control system 17 receives the second signal 97 and detects that the door 22 is in the open position the first source generates the third signal 99 The third source monitoring system 16 then com pares the door location data 70 encoded in the second signal 97 with the door location data 70 encoded in the third signal 99 and if the door location data 70 of the second signal 97 matches the door location data 70 of the third signal 99 the master station 18 and the slave units 19 will display the door location data 70 and the patient identification data 72 of the third signal In other embodiments alarm notification data such as the patient s name age gender and or the time the door 22 was accessed may be d
12. opened thereby actu ating the inside antenna 40 and allowing the door transmitter 24 to transmit the first signal 96 to any nearby patient moni toring devices 20 This arrangement allows for the detection of any patient monitoring devices 20 in situations where either the motion detector 44 detects the presence of a person near the door 22 or the door 22 is opened from the outside for example by a person entering the facility 15 in the presence of a person coupled to the patient monitoring device 20 In one embodiment the door access controller unit 28 may include a RESET RAC component 62 which is in wireless communication with the master station 18 and the monitoring system 16 In situations where the presence of the patient monitoring device 20 triggers the relay controller 26 the patient monitoring device 20 that triggered the door access control unit 30 must be subsequently reset The patient moni toring device 20 is reset by entering the proper code into the respective control device 42 of door 22 which causes the monitoring system 16 to instruct the wireless transmitter not shown associated with the RESET RAC component 62 to transmit a signal that resets the patient monitoring device 20 This procedure ensures and documents that the patient coupled to the patient monitoring device 20 has been brought back into the facility 15 through the particular door 22 iden tified to the monitoring system 16 In one embodiment the second rela
13. such as when electrical power to the monitoring system 16 is interrupted or the modules that operate the monitoring system 16 become corrupted or dis abled The fail safe operation system 30 is in communication US 8 436 727 B2 5 with a paging transmitter system 38 that transmits signals containing data including the door location data 70 although in other embodiments other alarm notification data may be transmitted to one or more pagers 45 so that facility personnel are alerted whenever the monitoring system 16 has suffered a failure and the fail safe operation system 30 has been acti vated In one embodiment shown in FIG 7 the fail safe operation system 30 includes a plurality of relay components 61 that provide various fail safe functions when the monitoring sys tem 16 becomes inoperative Specifically the fail safe opera tion system 30 includes relays 61A that are activated when the supervisory unit 25 detects the failure of the monitoring sys tem 16 When the normally open relays 61A are closed by the supervisory unit 25 and a particular door 22 is subsequently opened a respective relay 61 for that door 22 will be ener gized and a signal will be transmitted to the pagers 45 through the paging transmitter 38 identifying the door 22 that has been opened The fail safe operation system 30 further includes normally open relays 61B and 61C that are also operatively coupled to a respective door 22 and become closed when the superv
14. to receiving the first signal 96 transmitted by the door access control system 17 as shall be discussed in greater detail below The wireless network 13 includes a master station 18 that is in communication with a plurality of slave units 19 arranged within the facility 15 to provide optimum coverage around the facility 15 for receiving wireless signals being transmitted by the patient monitoring device 20 The communication may be made in a serial or parallel manner The master station 18 communicates with the monitoring system 16 to control the operation of the patient monitoring system 10 embodi ment the monitoring system 16 includes a database 39 con taining door location data 70 that identifies the location of each door 22 in the facility 15 by using a unique identification code In addition the database 39 includes patient identifica tion data 72 that identifies each patient coupled to a particular patient monitoring device 20 In one embodiment the patient monitoring device 20 may be an SL37L426 Wristband Trans mitter with Locating Function manufactured by BOSCH while the master station 18 may be a NurseCall Main Unit and each of the plurality of slave units 19 may be a NurseCall Relay Unit which are both manufactured by BOSCH As shown in FIGS 1 and 2 the patient monitoring system 10 may be configured such that each respective door access control system 17 controls the monitoring and access for one particular door 22
15. with the timer relay 46 for actuating the magnetic lock 50 and locking down the door 22 for a predetermined time period The actuation of the timer relay 46 also energizes the first relay 54 which will then open its normally closed contacts Because the first relay 54 is in a normally closed state and electrically coupled to the door input contacts on the control device 42 the open position of the door 22 will not activate an alarm or transmit a third signal 99 to the monitoring system 16 unless a person with a patient monitoring device 20 is also present and detected by the door access controller unit 28 As shown the relay 26B of the relay controller 26 is electrically coupled to a STA INPUT device 60 through a third relay 58 which is energized whenever the relay 26B of the relay con troller 26 is triggered The STA INPUT device 60 may be hardwired directly to the monitoring system 16 for communicating the third signal 99 to the master station 18 and the monitoring system 16 when the door contact 48C is triggered by the door 22 being placed in the open position as well as relay 58 being energized by the relay controller 26 upon receiving the second signal 97 transmitted by the patient monitoring device 20 In addition door contact 48B is coupled to the door 22 such that opening the door 22 will trigger the door contact 48B and energize first relay 54 Door contact 48A may also be coupled to the door 22 which is triggered when the door 22 is
16. 0 12 2005 Montgomery etal 340 5 52 6 972 677 B2 12 2005 Coulthard 7 554 446 B2 6 2009 Ciarcia et al 340 568 1 2004 0189471 1 9 2004 Ciarcia et al 340 572 1 2005 0052275 Al 2006 0235283 Al 10 2006 Vinarov et al 2007 0163045 Al 7 2007 Becker et al OTHER PUBLICATIONS 3 2005 Houle 2000 Series e eM Style Keypad Installation and Programming Manual Document No 6054022 Revision 1 0 dated Dec 21 2006 60 pages TeleAlarm LLC LE9 Road Resident Out of Bed Activity Module Specification Sheet date unknown 2 pages D Schwendener TeleAlarm Wireless Contact RAC 434 Set up Information Janvier 2006 Document No 953 36 4 pages TeleAlarm NurseCall Relay Unit Data Sheet Reference Nos NC 021 FI XX dated Jun 3 2006 2 pages TeleAlarm IS 76 Beacon with Ferrite Antenna Installation Manual Document 953 26 11 pages Senior Technologies WanderGuard Delayed Egress Magnetic Locks 17000 Series 2 pages Senior Technolgoies Arial Options Wireless Communication Sys tems date unknown 1 page Senior Technologies WanderGuard Departure Alert System WanderGuard ID Departure Alert System Model 16921 undated 2 pages Senior Technologies WanderGuard System Hospital Product Infor mation undated 1 page Senior Technologies Products and Services undated 1 page Senior Technologies WanderGuard System Long Term Care Prod uct Information undated 1 p
17. 30 and the supervisory unit 25 will be discussed in greater detail In one embodiment the supervisory unit 25 US 8 436 727 B2 9 continuously monitors the operational state of the monitoring system 16 initiated at block 200 At decision point 202 the supervisory unit 25 determines whether the monitoring sys tem 16 has failed Ifthe monitoring system 202 has not failed the fail safe operation system 30 returns to block 200 how ever if the supervisory unit 28 detects the failure of the monitoring system 202 the supervisory unit 25 will actuate the fail safe operation system 30 by energizing relays 61 At block 206 the fail safe operation system 30 causes the second relay 56 of the door access controller unit 28 to be energized that transmits an alarm signal to the pagers 45 through the paging transmitter 38 while at block 208 the fail safe opera tion system 30 will lock down all of the doors 22 within the facility 15 Once the doors 22 are locked down then at deci sion point 210 the application 90 determines if the monitoring system 16 is operational If the monitoring system 16 is still inoperative then the fail safe operation system 30 returns to block 208 to continue the lock down of doors 22 until the monitoring system 16 becomes operational however if the monitoring system 16 has become operational then at block 212 the timer relay 46 unlocks the doors 22 and then returns to block 200 Referring to FIG 10 in one embodiment
18. E gt YES INISIN 4 1 E LINOVI d Ny 3SV3THH b ONIBOLINOM eee LA Si ei WHOIS ore Bak GONOO3S ODE L4 VNNAINV gro 5 3 H SAVALLOV zo TWNOIS ONOO3S avia taoa NOL LOW 1 US 8 436 727 B2 Sheet 9 of 11 May 7 2013 U S Patent 6 914 4009 T vy _WHLSAS gt po ud ee paa i 4435 WaT 902 7 WalSAS NOLLVH3dO advo vs 2 7 e s SENINOLINOW 002 Y ON US 8 436 727 B2 Sheet 10 of 11 May 7 2013 U S Patent OL 914 Oc 7 JDENOS 18314 WALSAS 853009 HOOd 303008 ANODAS BOA ONIHOLINOW LN3UMd 9L OF A9uNOS WELSAS ONIHOLINONN US 8 436 727 B2 Sheet 11 of 11 May 7 2013 U S Patent LL Old 9 rM SNOILONHLSNI WOIG3N 15 1 gavara TS 301430 Y3SN AMONNSILOUVAS 18 E 88 T sNouonsisN LIND SS3TTHMIM AIUTO NN ge
19. US008436727B2 a2 United States Patent 0 Patent No US 8 436 727 B2 Todd et al 45 Date of Patent May 7 2013 54 METHODS AND SYSTEMS FOR DOOR 56 References Cited ACCESS AND PATIENT MONITORING ENDOSO MENTS 76 Inventors James D Todd Garnett KS US Peer Pn Pouhuij Thomas Hollinger Overland Park KS 6 134 725 A 10 2000 Bouhuijs US Christopher Fangrow 6 396 413 B2 5 2002 Hines etal 340 8 1 Harrisonville US Continued FOREIGN PATENT DOCUMENTS Notice Subject to any disclaimer the term of this WO W02010031694 Al 3 2010 patent is extended or adjusted under 35 U S C 154 b by 378 days TeleAlarm NurseCall Main Unit User Manual 953 92 v1 0 dated 21 Appl No 12 895 534 Aug 2001132 pages Continued 22 Filed Sep 30 2010 Primary Examiner Donnie Crosland 74 Attorney Agent or Firm Polsinelli Shughart PC 65 Prior Publication Data 57 ABSTRACT Jun 2 2011 Methods and systems for door access and patient monitoring are described The patient monitoring system includes a door access control system coupled to one or more doors of a Related U S Application Data facility for monitoring and controlling the access of patients RES coupled to a patient monitoring device Whenever a patient 60 Provisional application No 61 247 327 filed on Sep coupled to a patient monitoring device comes within a pre 30 2009 determi
20. a patient monitoring device for the patient monitoring system FIG 515 a simplified block diagram ofa monitoring system for the patient monitoring system FIG 6 is an electrical schematic diagram of a door access controller unit for the patient monitoring system 20 25 30 35 40 45 50 55 60 65 2 FIG 7 is an electrical schematic diagram of the fail safe operation system and supervisory unit for the patient moni toring system FIG 8 is a flow chart illustrating the methods for patient monitoring and door access for the patient monitoring sys tem FIG 9 is a flow chart illustrating the methods for fail safe operation of the patient monitoring system FIG 10 is a simplified block diagram illustrating the vari ous signals generated between different sources of the patient monitoring system and FIG 11 is a simplified block diagram of a machine in an example form of a computer system within which a set of instructions for causing the machine to perform any one or more of the methodologies discussed herein DETAILED DESCRIPTION Example methods and systems for door access and patient monitoring are described In the following description for purposes of explanation numerous specific details are set forth in order to provide a thorough understanding of example embodiments It will be evident however to one of ordinary skill in the art that embodiments of the invention may be practiced without these s
21. a patient monitoring device 20 has passed through that opened door 22 the pagers 45 will only display the particular door 22 and cannot display the patient identification data 72 to the pagers 45 since the monitoring system 16 is not operable Referring to FIG 5 one embodiment the monitoring sys tem 16 may include a processor 75 capable of executing a door access and monitoring application 90 embodied in a computer readable storage medium 73 stored in a main memory 77 of the monitoring system 16 The door access and monitoring application 90 may execute a plurality of mod ules such as a door access module 93 alarm status module 94 and a monitoring module 95 when operating the monitoring system 16 as shall be discussed in greater detail below In an example embodiment shown in FIG 6 the door access control system 17 may include a door access controller unit 28 having an arrangement of various components for executing the modules 93 94 and 95 of the door access and monitoring application 90 As shown the control device 42 is electrically coupled to the timer relay 46 which is electrically coupled to the relay controller 26 having relays 26A and 26B The relays 26A and 26B are triggered when the relay control 20 25 30 35 40 45 50 55 60 65 6 ler 26 is actuated after receiving the second signal 97 that is transmitted by the patient monitoring device 20 as described above The relay 26A is electrically coupled
22. activating the antenna for each respective door and the third plurality of relays being electronically coupled to a respective antenna for each respective door for actuating the antenna
23. age Senior Technologies WanderGuard System Residential Community Product Information undated 1 page cited by examiner U S Patent May 7 2013 Sheet 1 of 11 US 8 436 727 B2 PATIENT MONITORING SYSTEM Pl FACILITY SLAVE MONITORING UNT N i9 PATIENT B MONITORING P pod DEVICE ae Authorized User WALL 18 Authorized User SLAVE UNT US 8 436 727 B2 Sheet 2 of 11 May 7 2013 U S Patent WALSAS IOHINOS WILSAS W3lSAS 1OMINOO W3LSAS JOHLNOO ssa3oov j 8309 6300 4 7 88890 3009 ONIJOLINON E ONISOLINONW OSNIMOLINOW P ONISOLINON gt AMPIA o7 INSUVd 4 iS 27 ANJ Yd Ge gp 07 i NOILVLS YALSVIN SLUNG BAYS a i i asvaviva WALSAS SNIHOLINOIK WALSAS ONIHOLINONW LNHLYd A eg ME ea US 8 436 727 B2 Sheet 3 of 11 May 7 2013 U S Patent 2 L pr P YNNALNY t 2018180
24. cond signal 97 from the patient monitoring device 20 and the door 22 is open the STA INPUT device 60 transmits a third signal 99 encoded with door location data 70 and patient identification data 72 directly to the monitoring system 16 However if person detected by the door access control system 17 is not coupled to a patient monitoring device 20 such as a visitor or facility employee a second signal 97 is not transmitted to the relay controller 26 since a patient with a patient monitoring device 20 is not present thereby preventing any false alarms from occurring With respect to the second scenario when the patient coupled to a patient monitoring device 20 is detected and the door 22 is closed the STA INPUT device 60 has not been triggered since the door 22 is in the closed position despite the fact that the motion detector 44 has detected the presence of a person coupled to a patient monitoring device 20 As noted above the transmission of the second signal 97 encoded with door location data 70 and user identification data 72 by the patient monitoring device 20 to the monitoring system 16 is made in response to the first signal 96 being transmitted by the door transmitter 24 which is received by the patient monitoring device 20 However since the door contacts 48 have not been trig gered the STA INPUT device 60 cannot transmit a third signal 99 to the monitoring system 16 Upon receipt of the second signal 97 transmitted by the
25. ctured by International Electronics Inc The door access control system 17 also includes a timer relay 46 that is actuated by a relay controller 26 whenever the second signal 97 transmitted by the patient monitoring device 20 is received by the relay controller 26 through either the inside antenna 40 or inside antenna 41 The timer relay 46 is coupled to the magnetic lock 50 through the control device 42 and permits the magnetic lock 50 to remain in a lock down mode that keeps the door 22 in the closed position and pre vents the opening of door 22 until a predetermined amount of time has expired For example the timer relay 46 may be set for a 15 second time delay in which the door 22 will remain locked for that predetermined time period after the magnetic lock 50 has been actuated and the door 22 is in the closed position however the timer relay 46 may be set at other predetermined time periods such as 30 seconds 45 seconds or other predetermined time periods In one embodiment the relay controller 26 may be a LE10 ROAM wireless receiver manufactured by BOSCH As further shown in FIG 3 the monitoring system 16 may be coupled to a supervisory unit 25 that continuously moni tors the operational status of the hardware and modules of the monitoring system 16 In one embodiment the supervisory unit 25 is coupled to a fail safe operation system 30 that is activated whenever the monitoring system 16 suffers either a hardware or module failure
26. e first signal transmitting the second signal to the first source and a third source in response to receiving the second signal by the second source from the first source encoding a third signal with the identification data encoded in the second signal and the door location data of the door in the open position transmitting the third signal to the third source determining at the third source whether the door location data encoded in the second signal matches the door location data encoded in the third signal and displaying the door location data and the identification data if the door location data encoded in the first signal matches the door location data encoded in the third signal 15 The method of claim 14 further comprising transmitting the second signal to the third source by the second source in response to receiving the first signal from the first source 16 The method of claim 14 further comprising locking down the door when the second source coupled to the person comes within a predetermined distance of the door 17 The method of claim 16 wherein the door is locked down for a predetermined time period 18 The method of claim 16 further comprising preventing the display of the door location data and iden tification data encoded in the second signal if the door location data encoded in the third signal does not match the door location data encoded in the second signal US 8 436 727 B2 13 19 The meth
27. ed with door location data 70 that identifies the particular door 22 of the facility 15 If the person who triggered the motion detector 44 is coupled to a patient monitoring device 20 the receiver 68 of the patient monitoring device 20 will receive the first signal 96 transmitted by the door transmitter 24 The patient moni toring device 20 in response then transmits through trans mitter 66 the second signal 97 encoded with the door location data 70 derived from the received first signal 96 as well as patient identification data 72 stored in memory 64 of the patient monitoring device 20 The transmission of the second 20 25 30 35 40 45 50 55 60 65 4 signal 97 by the patient monitoring device 20 is received by both the door access control system 17 through the inside antenna 40 as well as by one or more of the plurality of slave units 19 and or the master station 18 arranged within the facility 15 which is then communicated directly to the moni toring system 16 by the master station 18 The door transmitter 24 may be hardwired to a plurality of door contacts 48 that detect the open or close positions of the door 22 One or more of the plurality of door contacts 48 may also be hardwired to the inside antenna 40 which is actuated when either the door 22 is opened or the motion detector 44 detects the presence of the person in proximity to the door 22 for transmitting the first signal 96 to any patient monitoring
28. ial access facilities requiring an entry code or programmed badge to open doors however Alzheimer s patients often tailgate behind authorized personnel through before the door closes and locks unbeknownst to staff Traditional door access and monitoring systems are also employed at healthcare facilities but these systems are at times not 100 reliable Many times these systems also run the risk of false alarms burdening staff patients and visitors This can occur for example when patients in non designated areas but are accompanied escorted by staff pass through secured doors thus setting off an alarm Thus healthcare facilities today still deal with both glitches and annoyances in door access and monitoring systems for Alzheimer s patients as well as errors in the systems leading to liability Patient door access and monitoring systems can also be utilized for other healthcare facility concerns besides Alzheimer s such as monitoring newborn babies brain injury patients and other types of patients that require constant monitoring within a healthcare facility BRIEF DESCRIPTION OF THE DRAWINGS FIG 1 is a simplified block diagram of the patient moni toring system within a facility FIG 2 is a simplified block diagram of the patient moni toring system FIG 3 is a simplified block diagram of a door access control system and wireless network of the patient monitor ing system FIG 415 a simplified block diagram of
29. ides patient monitoring and door access functions In one embodiment the door access and monitoring appli cation 90 determines at decision point 100 whether the door 22 is open or not If the door 22 is open then at block 102 the door access control unit 28 activates the inside antenna 40 Once the inside antenna 40 is activated the application 90 determines at decision point 104 whether a patient is present and in close proximity to the door 22 As discussed above the door access control system 17 determines whether a patient with a patient monitoring device 20 is present by receiving the second signal 97 in response to the first signal 96 originally transmitted by the door transmitter 24 If a patient coupled to a patient monitoring device 20 is not present then the door access and monitoring application 90 returns to START how ever if a patient coupled to a patient monitoring device 20 is present then at block 106 the door access control unit 28 transmits the third signal 99 to the monitoring system 16 At block 108 the patient monitoring device 20 will transmit the second signal 97 to the patient monitoring system 16 via the wireless network 13 Once the patient monitoring device 20 has transmitted the second signal 97 then at block 110 the door access and monitoring application 90 will actuate the magnetic lock 50 will lock down the door 22 Once the mag netic lock 50 has been activated then at decision point 112 the timer relay 46
30. in the order described or in any particular order Moreover various activities described with respect to the methods iden tified herein can be executed in serial or parallel fashion Although End blocks may be shown in the flowcharts the methods can be performed continuously The Abstract of the Disclosure is provided to comply with 37 1 72 b requiring an abstract that will allow the reader to quickly ascertain the nature of the technical disclo sure It is submitted with the understanding that it will not be US 8 436 727 B2 11 used to interpret or limit the scope or meaning of the claims In addition in the foregoing Detailed Description it can be seen that various features are grouped together in a single embodiment for the purpose of streamlining the disclosure This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments require more fea tures than are expressly recited in each claim Rather as the following claims reflect inventive subject matter may lie in less than all features of a single disclosed embodiment Thus the following claims are hereby incorporated into the Detailed Description with each claim standing on its own as a separate embodiment What is claimed is 1 A method comprising transmitting a first signal from a first source indicating when a person is detected within a predetermined dis tance from a door the first signal being encoded
31. in the facility 15 As shown one or more doors 22 may control access to facility 15 while other doors 22 may control access to areas within the facility 15 In one embodiment the door access control system 17 may be directly hardwired to the monitoring system 16 although wireless communication with the monitoring system 16 is also contemplated In this arrangement the patient monitor ing system 10 may monitor and control access to a plurality of doors 22 within the facility 15 through either the monitoring system 16 or in the alternative through a fail safe operation system 30 that becomes operational whenever the monitoring system 16 becomes disabled and non operational as shall be discussed in greater detail below Referring to FIG 3 the door access control system 17 includes a motion detector 44 that actuates a door transmitter 24 through an inside antenna 40 for transmitting the first signal 96 whenever a person comes within a predetermined distance or proximity of the motion detector 44 In one embodiment the door transmitter 24 for transmitting the first signal 96 may be 176 Beacon with Ferrite Antenna manu factured by BOSCH The actuation of the door transmitter 24 by the motion detector 44 when triggered by a person that comes within proximity of the motion detector 44 actuates the inside antenna 40 and causes the door transmitter 24 to trans mit through the inside antenna 40 the first signal 96 The first signal 96 is encod
32. isory unit 25 detects the failure of the monitoring sys tem 16 and relay 61B then will energize and activate the inside antenna 40 of the door 22 while respective relay 61C will lock down the door 22 and prevent that door 22 from being opened In one embodiment the fail safe operation system 30 when activated energizes the relay 61D that causes the paging transmitter 38 to transmit a message to pagers 45 that the monitoring system 16 has become inoperative The fail safe operation system 30 further includes a terminal strip 63 electronically coupled to a second relay 56 of the door access control unit 28 As noted above the supervisory unit 25 is electrically coupled to the plurality of relays 61 of the fail safe operation system 30 with the contacts of the super visory unit 25 in a normally open position The supervisory unit 25 also monitors the positive side of a 12 volt power supply in order to determine whether the monitoring system 16 is operational In one embodiment failure of the monitor ing system 16 will cause the normally open contacts of the supervisory unit 25 to close thereby closing the normally open relays 61 of the fail safe operation system 30 In addi tion when a door 22 is opened after activation of the fail safe operation system 30 the paging transmitter system 38 will also transmit a signal to the pagers 45 with a notification that identifies the particular door 22 that has been opened How ever if a patient wearing
33. isplayed FIG 11 shows a simplified block diagram of a machine in the example form of a computer system 200 within which a set of instructions may be executed causing the machine to perform any one or more of the methods processes opera tions or methodologies discussed herein The monitoring system 16 may include the functionality of one or more com puter systems 200 In an example embodiment the machine operates as a standalone device or may be connected e g networked to other machines In a networked deployment the machine may operate in the capacity of a server or a client machine in a server client network environment or as a peer machine in a peer to peer or distributed network environment The machine may be a server computer a client computer a personal computer PC a tablet PC a set top box STB a Personal Digital Assistant PDA a cellular telephone a web appliance a network router switch or bridge or any machine capable of executing a set of instructions sequential or oth erwise that specify actions to be taken by that machine Further while only a single machine is illustrated the term 20 25 30 35 40 45 50 55 60 65 10 machine shall also be taken to include any collection of machines that individually or jointly execute a set or multiple sets of instructions to perform any one or more of the meth odologies discussed herein The example computer system 200 includes
34. lly coupled to the antenna for generating the first signal for transmission by the antenna and a relay con troller for receiving the second signal from the antenna wherein upon receiving the second signal the relay con troller locks down the door 27 The system of claim 26 wherein the door access con trol unit further comprises STA INPUT device electronically coupled to the relay controller the STA INPUT device generating the third signal and transmitting the third signal to the monitoring system only when the door is in the open position and the relay controller receives the second signal from the monitoring device 28 The system of claim 26 wherein the monitoring system is electronically coupled to a supervisory unit for monitoring the operational state of the monitoring system the supervi sory unit being electronically coupled to a fail safe operation system that is actuated only when the supervisory unit detects the operational failure of the monitoring system 29 The system of claim 28 wherein the fail safe operation system includes a first plurality of relays a second plurality of relays and a third plurality of relays each of the first plurality of relays being electronically coupled to a respective door for locking down the respective door only when the supervisory unit actuates the fail safe operation system each of the sec ond plurality of relays being electronically coupled to a pag ing transmitter for transmitting
35. ned distance of a particular door the door access con trol system transmits a first signal encoded with the door location data to the patient monitoring device The patient 51 Int Cl monitoring device then transmits a second signal encoded G08B 1 08 2006 01 with the door location data and patient identification data of 60 25 00 2006 01 the patient coupled to the monitoring device to the door access control system and a monitoring system that controls 0 33 00 2006 01 the door access and monitoring of patient within the facility A61B 5 00 2006 01 If the door coupled to the door access control system is in the 05 19 00 2006 01 open position when the patient is detected the door access 52 U S control system transmits a third signal encoded with the door USPC tias 340 539 11 340 539 12 340 573 1 e rei a ee 340 539 23 340 542 340 5 2 340 286 07 E 340 57 70 263 second signal with the door location data encoded in the third s signal before displaying that data at a master station for alert 58 Field of Classification Search 340 539 11 ing facility staff 340 539 12 539 23 542 5 2 286 07 70 263 See application file for complete search history MONITORING SYSTEM THIRD SOURCE SOURCE 29 Claims 11 Drawing Sheets 217 aN K 2 N H DOOR ACCESS CONTROL SYSTEM FIRST SOURCE US 8 436 727 B2 Page 2 U S PATENT DOCUMENTS 6 972 66
36. o receiving another first signal from the first source 11 The method of claim 1 further comprising activating an antenna prior to transmitting the first signal from the first source wherein the antenna is activated if the person is detected within the predetermined distance from the door and wherein the antenna permits the first source to transmit the first signal and receive the second signal 12 The method of claim 1 wherein the first source is a door access control system that controls and monitors access to the door and the second source is a monitoring device coupled to the person wherein the monitoring device includes the iden tification data of the person coupled to the monitoring device 13 The method of claim 1 further comprising clearing the second signal from the display after the door location data and the identification data are displayed 14 A method comprising determining whether a door is in the open or closed posi tion transmitting a first signal from a first source if the door is in the open position the first signal being encoded with door location data identifying the door that is in the open position receiving the first signal at a second source if a person is within a predetermined distance of the door and the person is coupled to the second source encoding a second signal with an identification data iden tifying the person coupled to the second source and the door location data encoded in th
37. od of claim 14 further comprising transmitting the third signal for display on one or more pagers if the door location data encoded in the third signal matches the door location data encoded in the second signal 20 The method of claim 19 wherein the one or more pagers display the door location data and the identification data encoded in the second signal 21 system for door access and patient monitoring com prising door access control system coupled to a door operable between an open position and a closed position the door access control system including a means for detecting a person within a predetermined distance from the door the door access control system further including an antenna for transmitting a first signal encoded with door location data when the person comes within a predeter mined distance from the door wherein the door location data identifies the location of the door monitoring device coupled to the person the monitoring device including a receiver for receiving the first signal transmitted by the door access control system and a transmitter for transmitting a second signal encoded with the door location data and identification data that identifies the person coupled to the monitoring device wherein the antenna of the door access control system receives the second signal transmitted by the monitoring device and wherein the door access control system transmits a third signal encoded with the door location data
38. of storing or encoding a set of instructions for execution by the machine and that cause the machine to perform any one or more of the methodologies of the present invention The term machine readable storage medium shall accordingly be taken to include but not be limited to solid state memories and optical media and mag netic media Certain systems apparatus applications or processes are described herein as including a number of modules A module may be a unit of distinct functionality that may be presented in software hardware or combinations thereof When the functionality of a module is performed in any part through software the module includes a machine readable medium The modules may be regarded as being communicatively coupled The inventive subject matter may be represented in a vari ety of different embodiments of which there are many pos sible permutations Thus methods and systems for door access and patient monitoring have been described herein Although embodi ments of the patient monitoring system have been described with reference to specific example embodiments it will be evident that various modifications and changes may be made to these embodiments without departing from the broader spirit and scope of the embodiments of the invention Accord ingly the specification and drawings are to be regarded in an illustrative rather than a restrictive sense The methods described herein do not have to be executed
39. patient monitoring device 20 the monitoring system 16 will attempt to match the data encoded in the second signal 97 with any third signals 99 transmitted to the monitoring system 16 by the door access control unit 28 however since no match can be made since no third signal 99 was ever transmitted the alarm status module 94 will clear the second signal 97 using the alarm status module 94 so that neither the master station 18 nor the slave stations 19 will display any of the data encoded in the second signal 97 As such the monitoring system prevents false alarms from being generated by the presence of a person with a patient monitoring device 20 being in proximity to any door 22 in the facility 15 that is ina closed or locked down position In one embodiment the presence of a patient coupled to a patient monitoring device 20 can cause the door access con trol system 17 to automatically lock down the door 22 when a person is detected within proximity of the door 22 by the motion detector 44 thereby preventing passage of the person through door 22 unless that person can enter an access code into the control device 42 In other embodiments the door 22 may be normally locked down at all times by the door access module 90 and monitoring module 95 unless the appropriate code is entered into the control device 42 for causing the magnetic lock 50 to actuate and permit the door 22 to be opened In this scenario when the door 22 is normally locked the
40. pecific details Referring to the drawings an embodiment of the patient monitoring system is illustrated and generally indicated as 10 in FIG 1 In an example embodiment of the patient monitor ing system 10 one or more patients or other persons to be monitored within a facility 15 may have a patient monitoring device 20 coupled to his or her wrist or ankle in a secure manner that prevents the patient from removing the patient monitoring device 20 When a patient monitoring device 20 is coupled to each patient within the facility 15 the patient monitoring system 10 has the capability of detecting secur ing and monitoring any patient coupled to a patient monitor ing device 20 who comes within close proximity or a prede termined distance to any door 22 of the facility 15 In addition the patient monitoring system 10 includes a plural ity of door access control systems 17 that are each coupled and operatively associated with a respective door 22 The door access control system 17 has the capability to detect the presence of any person in close proximity to the door 22 and in particular to detect and identify the presence of a patient by virtue of the patient being coupled to the patient monitoring device 20 In one embodiment the door access control system 17 may lock down the door 22 when the presence of the patient coupled to a patient monitoring device 20 is detected As used herein the term lock down refers to the capability of the
41. with door location data that identifies the door receiving the first signal at a second source the second source being coupled to the person transmitting a second signal from the second source to the first source and a third source the second signal being encoded with the door location data and identification data of the person coupled to the second source receiving the second signal at the first source and the third source and transmitting from the first source a third signal to the third source if the door is in an open posi tion wherein the third signal is encoded with the door location data of the door and identification data of the person coupled to the second source determining whether the door location data encoded in third signal matches the door location data encoded in the first signal and displaying the door location data and the identification data of the second signal if the door location data encoded in the third signal matches the door location data encoded in the second signal 2 The method of claim 1 further comprising transmitting the second signal to the third source by the second source in response to receiving the first signal from the first source 3 The method of claim 1 further comprising locking down the door when the second source coupled to the person comes within a predetermined distance of the door 4 The method of claim 3 wherein the door is locked down for a predetermined time period
42. y 56 of the access controller unit 28 is electrically coupled to first relay 54 and third relay 58 The second relay 56 may actuate the paging transmitter system 38 for transmitting signals to one or more pagers 45 when energized by the door access controller unit 28 The function of the door access controller unit 28 with respect to the first second and third relays 54 56 and 58 will be discussed in greater detail below The door access controller unit 28 is responsive to different scenarios in order to manage and control door access within the facility 15 as well as monitor any persons within close proximity of doors 22 especially patients coupled to a patient monitoring device 20 In a first scenario a patient coupled to a patient monitoring device 20 is present e g within close proximity of the door 22 to be detected by motion detector 44 US 8 436 727 B2 7 and the door 22 is in the open position In a second scenario a patient coupled to a patient monitoring device 20 is present and the door 22 is in the closed position In a third scenario a patient is not present but a person not coupled to the patient monitoring device 20 places the door 22 in the open position With respect to the first scenario when the patient is present and the door 22 is open the inside antenna 40 is activated and the door transmitter 24 will transmit a first signal 96 to any nearby patient monitoring devices 20 If the relay controller 26 receives a se
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