DR1500 - Houston Radar
Contents
1. Baud Rate Data Stop Parity RS variable bps Bits Bits value 1200 7 1 Even 10 1200 7 Odd 11 1200 7 None 12 1200 8 None 13 2400 7 Even 20 2400 7 Odd 21 2400 7 None 22 2400 8 None 23 9600 7 Even 30 9600 7 Odd 31 9600 7 None 32 9600 8 None 33 115200 7 Even 40 115200 7 Odd 41 115200 7 None 42 115200 8 None 43 19200 7 Even 50 19200 7 Odd 51 19200 7 1 None 52 19200 8 None 53 Note Many other combinations are available and may be selected via an Excel configuration tool Please contact us for this tool Page 16 of 19 Houston Radar DR1500 User Manual G msn DR1500 SPECIFICATIONS General Operating Band K Band Frequency 24 125 GHz 50Mhz US 24 200Ghz on request Power Output Antenna Beam Pattern Polarization Supply Voltage Reverse Battery Nominal Current Draw Operating Temp Weatherproof IR Remote Programmable Approvals Approvals Data Interfaces Serial Communication Data Rate Data amp Pwr Connector Mechanical Weight Dimensions Cable Exit Mounting SmW 1ldeg x 11 deg Linear 8 7V DC to 18V DC Protected 32 mA avg 2ma 12V DC 22 F to 185 F 30 C to 85 C Electronics designed and tested to 40C No Optional Contact us for details FCC Part 15 2x RS232 for configuration Baud Rates from 1200 to 115200 baud DB9 female approx 500 grams approx 0 5 Ibs 3 7 W x 3 2 Hx2. nos DRI500 Installation and User Manual K Band Doppler Speed Radar Built Type DR1500 BOM2 Rev 2 April 15 2009 Houston Radar LLC 13814 Sherburn Manor Dr Cypress TX Http www Houston Radar com Email sales Houston Radar com Contact 1 888 602 3111 Houston Radar DR1500 User Manual HOUSTON RADAR This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Any modification or use other than specified in this manual will strictly void the certification to operate the device This device carries FCC modular approval and as such is labeled with FCC ID TIADR1500 If this label is not visible when the module is installed inside another device then the outside of the device into which the module is installed must also display a label referring to the enclosed DR1500 module This exterior label can use wording such as the following Contains Transmitter Module FCC ID TIADR1500 or Contains FCC ID TIADR1500 Any similar wording that expresses the same meaning may be used Page 2 of 19 Houston Radar DR1500 User Manual G msn
3. Warning DR1500 radar is supplied in an open frame format with exposed antenna and electronics and thus is a static sensitive device Please use static precautions when handling Warranty does not cover damage caused by inadequate ESD procedures and practices Note Specifications may change without notice Note Not liable for typographical errors or omissions Page 3 of 19 Houston Radar DR1500 User Manual HOUSTON RADAR Table Of Contents INTRODUCTION ccccccssssssssssssssssssssssssscssssssscccccscccsccscccsescsscscsscssscsscsosscssssossoesssesesos 5 INSTALLATION ccsssssscsssccscscssscccsossccssscssscccocssccscccacaccocossccssccssacscecsscccsocacoccononaccssscssacscoessse 5 len Kl 5 DIRECTION CCRN Le 6 RECOMMENDED ENCLOSURE FOR THE DRIaO cece eceeeeeeccccceeeccccceecceceussecceseeeeenses 6 Tele 7 Power EE 7 Serial Connection 7 Measured Speed Output EE 7 Setting Detection Sensitivity via the ASCII Interface cccccccccscccccccsscccesessseeeesesseeeeesees 7 Log St tiscS Storage eerie re inae TREE E EEEE E EEE EEEN EER E 9 HTTP HOUSTON RADAR COM DOWNLOADS HOUSTONRADARADVANCEDSTATISTICSWHITEPAPER PDFWI RE SIGNAL DESCRIPTIONS 9 WIRE SIGNAL DESCRIPTIONS cccccccccccccesssescccccccccesssscccceccccscesssuscceecesceseusessssecesseseuueeaes 10 MWS IN 11 COLLECTING AND ANALYZING IN RADAR TRAFFIC STATISTICS 11 REAL TIME TRAFFIC STATISTICS IN THE RADAR ccccccccsssssssssssssc
4. oncoming traffic to the radar o If radar cannot be placed right along the side of the road it should be pointed at least 150 m 500 feet up the road into oncoming traffic v The radar may pickup rotating fans Avoid pointing it at fans or compressors v Radar should be mounted at least 1 m 3 feet high from the road for optimal performance and at least 1 5 m 5 feet off the ground for maximum pickup distance Recommended Enclosure for the DR1500 The DR1500 radar needs to be enclosed in a weatherproof enclosure for outside use The following needs to be observed for optimal performance 1 The front face of the radar with the golden pads is the antenna and is the face that must point into traffic 2 Any cover or window in front of the unit MUST be at least 6mm AT away from the face 3 Do NOT spray any conformal or other coating paint or other substance on the antenna 4 The optimum material to use as a front window is Lexan Polycarbonate plastic 5 The optimum thickness of this polycarbonate window is half wavelength of 24 125Ghz or about 3 5 to 3 7mm thick a Alternatively a thin window of any plastic material may be used The maximum thickness in this case should be no more than 1 mm 40 mils 6 Other plastic materials may be used as a front window but the optimum thickness will wary with the material s dielectric constant Please contact us for details 7 6mm 1 4 thick Lexan is not recommended if you w
5. 0 9 D 9 5 x 8 3 x 2 3 cm Right angle DB9 connector on PCB Off the side Four 4 M3 holes in carrier plate Specifications continued on next page Page 17 of 19 Houston Radar DR1500 User Manual HOUSTON RADAR Performance Resolution 0 006 mph internal rounded to whole mph kph when output over serial port if no decimal point selected Otherwise selectable from 1 to 3 places of decimal Accuracy 0 5 of reading 0 1mph Detection Range Typically up to 366 m up to 1200 feet for compact vehicles on open and level road with radar mounted 1 5 m 5 feet high and pointed straight into oncoming traffic 450 m 1500 feet for larger trucks lorries and vehicles with inherently large radar cross section May vary with installation and road conditions Detection range may be lower under adverse weather conditions such as heavy rain due to 24GHz microwave absorption in water Detection range may be affected by type and thickness of radar window in front of radar face Page 18 of 19 Houston Radar DR1500 User Manual G msn Appendix A Hooking up to the trigger output on the radar The DR1500 radar features one open drain output This device can sink 600mA of DC current at up to 18VDC However this is a low impedance output which means that you must externally limit the maximum current that will flow into this output to 600mA at the worst case head voltage There are two ways to ensure this
6. released to 12VDC as soon as the radar detects no further traffic You must ensure that no more than 600mA of current flows into this terminal when it is pulled low Note The mounting plate of the radar is connected to GND i e pin 5 and 9 Page 10 of 19 Houston Radar DR1500 User Manual HOUSTON RADAR USE Turn on the power to the DR1500 to make it operational No other action is required The radar will activate the open drain outputs whenever it detects a vehicle that is above the programmed lower speed limit the LO value and below the programmed high limit the HP value The default limits are typically set at 5 mph 8 kph and 99mph 158 kph at the factory but may be different in your configuration The programmed values are always included in the manufacturing test report sent with the radar The values in brackets apply if units are set to KPH The radar will also keep sending out the speed in user selected ASCII format over the serial interface while an incoming vehicle is tracked Connect radar to PC RS232 serial port and use provided Windows configuration software to program the high speed limit HI variable The radar de asserts the trigger outputs above this limit If you do not wish an upper detection limit set this value to 159 This will ensure that the upper limit is never reached regardless if the units are set to MPH or KPH Set the LO variable to set the lower
7. site for further discussion on this topic including some actual field test results You may download it from the following URL http houston radar com downloads HoustonRadarAdvancedsS tatistics WhitePaper pdf Houston Radar DR1500 User Manual G msn Wire Signal Descriptions DB9 Pin Signal Direction Description Name wrt Radar 1 12V DC Input Radar Power Supply Connect to battery 9 5VDC to 18VDC 2 PRI RS 232 Output Primary RS232 transmit output from TX Radar 3 PRI RS 232 Input Primary RS232 receive input Required RX only if connected to PC to download stats from unit or setting sensitivity parameter 4 AUX Input Auxiliary RS232 RX RS232 RX 5 GND Input System Ground Connect to battery 6 AUX Output Auxiliary RS232 TX RS232 TX 7 Panel Power Output Open Drain Output See Note 1 Save 8 Do not N A Do not connect connect 9 GND Input System Ground Connected to wire 5 Note 1 The DR1500 features an output that can wake up an external display panel s to bring it out of power saving mode when a vehicle is detected above a user set threshold If the panels you hook to the radar do not feature such an input this pin should remain unconnected Normally this pin is pulled up to 12VDC by 18KOhm resistor on the radar PCB When a vehicle is detected this pin is pulled down to GND and held down to GND as long as a vehicle is detected This pin is
8. 1 Connect an output device that is rated to draw no more than 600mA at your supply voltage Vhead This device can be powered up to 18VDC For example this can be a 12 VDC relay coil rated at more than 600 mA of coil current or a LED lamp or 2 Connect an external resistor in series with the output load and the O P1 pin The value of this external resistor should be calculated as follows ohms law R in K Ohms Vhead Vload drop 600 Load Load rated to d Load Oa oad rated to draw Load Method 1 max of 600m lt A at Method 2 Vhead max Pin 7 of DBO Triggered on vehicle detection On Radar PCB Page 19 of 19
9. detection speed limit The outputs will be de asserted for vehicles below this speed limit The lowest value this may be set is 2 MPH 3KPH Collecting and Analyzing In Radar Traffic Statistics The DR1500 Radar supports optional In Radar advanced traffic statistics collection This feature is sold separately If your radar has this feature enabled you may collect the stored statistics by using the provided Houston Radar Advanced Statistics Analyzer Windows program This program must be installed on a MS Windows 2000 XP Vista or Windows 7 32 bit operating system PC and allows the retrieval of stored statistics from the radar by using a PC serial port It also has features to generate traffic reports plot interactive graphs and export the raw data to a MS Excel file Please refer to the on line help functionality of the program after you install it on your computer for detailed instructions on how to use its functionality Real Time Traffic Statistics In the Radar Page 11 of 19 Houston Radar DR1500 User Manual HOUSTON RADAR The DR1500 In Radar stats software now features real time histogram statistics These are updated as soon as a vehicle is detected and may be read out as a speed bin count histogram Thus no historical records need be read out and parsed to read statistics This feature requires a host program to be on line to read the live statistics Please contact Houston Radar for more informatio
10. e less than HI HI High speed cutoff Vehicles speeds are not output above this speed Maximum value is 159 Should be set higher than LO speed SP Flashing speed limit Any speed higher than this value flashes the trigger output at 2 3 duty cycle 1Hz Sending out 000 between nnn speed values also interrupts the speed output to signal flashing ST Target detection sensitivity Valid values are from 10 to 99 and are a percentage of max range So a value of 50 would yield about 750 feet detection Note This is not range setting but detection sensitivity Thus if large vehicles are being detected at 1200 feet a value of 50 will make them detect at approx 600 feet etc SF 1 Select Fastest Target for speed output 0 Select Strongest Target for speed output BN Set from 1 to 60 minutes of binning interval for stats collection Traffic data binned see below and is accumulated for this duration in Page 13 of 19 Houston Radar DR1500 User Manual HOUSTON RADAR the bins and then a time stamped record made in stats memory in the radar Speed bins are factory set and cannot be changed They are 5 MPH bins for MPH units 20 bins in total from 0 to 105 MPH 10 KPH bins for KPH units 17 in total from 0 to 170 KPH MO Radar mode bits mask The bits controls speed output on primary and aux serial ports rapid output update and other functionality bit 0 gt 0 SI3 compatibility mode for ASCII com
11. he above format Setting Detection Sensitivity via the ASCII Interface In addition through the supplied PC program interface the radar also allows ASCII programmatic sensitivity setting Over the serial interface send in ASCII the following commands Sensitivity nn n and Sensitivity n Page 7 of 19 Houston Radar DR1500 User Manual HOUSTON RADAR The fiirst command will set the detection sensitivity to nn where nn is from 10 to 99 and is a percentage of the maximum detection range If sensitivity was set correctly the unit replies with OK n The second command will report sensitivity Note 1 All settings including sensitivity are written to FLASH memory and are non volatile DO NOT update settings on a periodic basis e g every second or every minute Only change settings when the user needs it The FLASH memory has a limited number of write cycles and will wear out with excessive gt 10 000 number of writes On the other hand setting the variable to the same value repeatedly is OK because the radar recognizes that the variable has not changed and does not update it in FLASH Note 2 Other configuration parameters may also be set via ASCII interface These are described in greater detail in our ASCII interface application note Please contact Houston Radar for this document Page 8 of 19 Log Statistics Storage The DR1500 radar has capacity to store traffic statistics in user p
12. ish to obtain maximum pickup range 4 7 to 5 mm 3 16 thick Lexan is preferred in this case Page 6 of 19 Houston Radar DR1500 User Manual HOUSTON Hookup Power Input The DR1500 radar should be powered from a nominal 12V DC source and features best in class operational power consumption of 32mA nominal This is world class performance for a radar with this pickup range This ultra low operational power translates directly into a longer battery life or gives you an option to power the unit from smaller batteries and smaller solar panels Serial Connection The DR1500 features two RS232 interfaces that may used to configure the unit as explained later in this document Measured Speed Output The DR1500 will send out the measured speed via the ASCII interface as a 3 digit speed with an optional direction indicator The format is nnn r n The format of the speed output can be adjusted to any combination of Optional prefix sent when 000 selected to be sent when no vehicles are detected E E prefix sent when nnn speed is sent for incoming vehicles nnn Three digit ascii speed in the units selected via the UN variable Ar Carriage Return character optional line ending n Line Feed character optional line ending At least one or both of the line endings must be selected No line ending is not an option Please see serial port configuration section for details on how to select t
13. item The three fields show the current values of the three variables Change the variables to the desired values and click on Save To configure any other variable click on Advanced gt Radar Configuration In the window that comes up enter the two letter variable name in the Variable field Enter its value in the Value field and click on Set Variable button 4 Connect to Radar Connection Connected Radar Info Connect To Radar On Serial Port Connection Status Connected COMI Radar Software Ver 104 Disconnect Radar Speed Limits Connecting Via Bluetoot Set Radar Speed Limits Here These apply only to display output not statistics Erase Radar Data Low Speed Cutoff Violater Speed Limit High Speed Cutoff Syne Radar Clock To Computer S ES 39 Radar blanks display Radar flashes display Radar blanks display below this limit above this limit above this limit Read Traffic Stats From Radar Read Stats Data Info Importing Into Project Dir No Project Importing Into Open Project Page 15 of 19 Houston Radar DR1500 User Manual HOUSTON RADAR Set Serial Baud Rate The supplied Windows configuration program can auto detect the baud rate of the radar serial port However if you wish to communicate with the radar from your electronics the adar serial port may be configured to different baud rates
14. mands bit 1 gt 1 Enable ASCII output on primary serial port bit 2 gt 1 Enable ASCII output on auxiliary serial port KY Reserved Do not set unless value provided by Houston Radar UN Note Radar firmware version 416 and higher support the following additional units 2 feet per second fps and 3 meters per second mps Additionally the high byte of the UN variable controls the of decimal points that is output on the ASCII speed Up to 3 places of decimal may be output Thus to set the radar to output in fps with 2 places of decimal set UN to 2 256 3 514 Page 14 of 19 Houston Radar DR1500 User Manual HOUSTON RADAR Setting Variables in the Radar l e E Ge 10 Install the Houston Radar Advanced Stats Analyzer Windows program on a Windows 2000 XP or Vista computer Connect the radar RS232 port to the PC s RS232 serial port If the PC does not have a serial port you may buy a USB serial converter dongle from BestBuy Radioshack or any Internet store Power up the radar Ensure the green LED on the PCB is flashing Start the Houston Radar Stats Analyzer program Click on Start gt Connect to Radar Click on Connect button Ensure you see a Radar found on COM message The COM will depend on your computer Click on OK Now you are ready to configure the radar To configure the LO SP amp HI limits click on Radar Limits menu bar
15. n if you are interested in acquiring live statistics from the radar Page 12 of 19 Houston Radar DR1500 User Manual G msn Internal Clock The radar has a built in clock calendar function that is kept up to date with the installed Lithium coin battery when power is removed The radar clock battery is only installed if you ordered the In Radar traffic statistics feature or indicated to us that you wish to activate In Radar traffic Statistics at a later time Configuring the Unit The unit s internal parameters may be configured by connecting the radar s RS232 port to a PC s RS232 serial port and using the Houston Radar Advanced Stats Analyzer program s configuration screen as described here The following internal variables may be set Their functions are described below Radar Description Configuration Variable Name RS Sets the primary RS232 serial port s baud rate and output format Do not change this value unless a value is provided by Houston Radar RA Sets the auxiliary RS232 serial port s baud rate UN Sets the internal speed units of the radar All LO SP amp HI speeds are interpreted to be in this units 0 MPH 1 KPH 2 feet sec 3 meter sec in firmware version gt 416 See UN Note below for new units in the latest version of the firmware LO Low speed cutoff Vehicle speeds are not output below this speed Minimum value is 2 Should be set to b
16. rogrammable time bin intervals default is 5 minute bins which yields 60 days of storage and features a clock calendar that retains time even when external power is removed The clock is used to time stamp the collected statistics The clock battery may not be installed in all build configurations Please inform us in advance if you wish to retain this option Stats are stored in mph or kph units This depends on the display units of the stats See the programming section to change the display units of the radar This feature is an add on software option Please contact Houston Radar LLC for purchase of this option Detecting traffic statistics inside the radar has tremendous advantages gt Radar tracks multiple vehicles at different speeds simultaneously and hence does not miss vehicles visible to it gt Radar access to all return signal parameters of the target vehicles processed by proprietary software inside radar makes full use of every bit of information present in reflected signal and dramatically improves counting accuracy gt No add on boards keeps total system power usage down and reliability up gt Advanced Statistics are software key enabled allowing turn on in the field or after the radars have shipped to the sign manufacturer gt Easy Bluetooth wireless access using standard Bluetooth modules you buy from your source Now enable statistics collection wirelessly Please see a white paper on this topic on our web
17. sinking 600 mA and is activated upon vehicle detection Radar internal software is upgradeable in the field via RS232 PC interface Optional In Radar advanced traffic statistics capability available All radar configuration parameters can be set by user via RS232 serial port Extensive built in self test S S SSS INSTALLATION Mounting DR1500 is supplied in an open frame format It requires a weatherproof enclosure before it may be used outdoors Alternatively it may be mounted as a component in another product that already has a weatherproof enclosure The DR1500 should be mounted such that the DB9 connector points left or right as shown in the picture on the front page This results in maximum pickup range The unit may be rotated 90degrees from the suggested optimal mounting However in this case the detection range may be reduced by about 25 Page 5 of 19 Houston Radar DR1500 User Manual HOUSTON RADAR Direction Pointing The DR1500 is directional in nature It only detects traffic in the incoming direction and rejects all traffic moving in the outgoing direction If you wish to detect outgoing traffic please contact us for more information For optimal performance v Radar should be mounted as suggested in the section titled Mounting earlier v Radar should be pointed into the direction of the oncoming traffic v Radar should be placed along the size of the road to minimize the angle of the
18. ssesees 11 Internal el 13 E E 13 Setting E 15 DR1500 SPECIFICATIONS eooooooeeooeeoosooeoooososossossesesosesosesesesesesosesesesosesssssssssssssoso 17 SEN E N AE EE AEE AAE EA E EAEE 17 APPROVALS EE 17 DATA INTERFACES a EE 17 hN T NICA NEE 17 DCRORMANCER 18 APPENDIX A HOOKING UP TO THE TRIGGER OUTPUT ON THE RADAR 19 Page 4 of 19 Houston Radar DR1500 User Manual HOUSTON RADAR INTRODUCTION Congratulations on your purchase of the Houston Radar directional Doppler Speed Radar DR1500 This state of the art 24GHz K band microwave Doppler radar is specifically designed for the license free battery operated speed measurement and monitoring market Utilizing high performance ultra low power DSP Digital Signal Processing technology and microwave components based on a planar patch array antenna with integrated low power PHEMT oscillator you will find that this high quality product meets your exacting standards for performance and reliability Some of the highlights of this product include v Best in class low power usage of only 32 mA at 12VDC 0 38 Watt v Small and thin size to allow easy incorporation into your enclosure v Advanced DSP based algorithm yields consistent performance and speed detection v Typically up to 366 m up to 1200 feet of pickup distance for incoming vehicles on open and level road Two independent RS232 serial ports enhances connection flexibility One trigger output is capable of
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