CN203535815U - Field speed measurement error verification device of motor vehicle overspeed automatic monitoring system - Google Patents
Field speed measurement error verification device of motor vehicle overspeed automatic monitoring system Download PDFInfo
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- CN203535815U CN203535815U CN201320648977.5U CN201320648977U CN203535815U CN 203535815 U CN203535815 U CN 203535815U CN 201320648977 U CN201320648977 U CN 201320648977U CN 203535815 U CN203535815 U CN 203535815U
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Abstract
The utility model relates to the field of vehicle test, and discloses a field speed measurement error verification device of a motor vehicle overspeed automatic monitoring system. The device of the utility model includes a radar speed measurement device, a camera, an RS232 interface, and a data acquisition unit; the radar speed measurement device and the camera are connected through the RS232 interface; and the camera and the data acquisition unit are connected through an RS485 or a network cable. The beneficial effects of the utility model are that: the high-precision radar speed measurement technology is used so as to greatly improve the test efficiency and reduce the test cost.
Description
Technical field
The utility model relates to motor vehicle calibrating field, relates in particular to the on-the-spot range rate error calibrating installation of a kind of automatic monitoring system for automobile overspeed.
Background technology
The automatic monitoring system for automobile overspeed being arranged in highway and city expressway has hypervelocity monitoring and law enforcement evidence obtaining dual-use function, is the major technique equipment of road traffic law enforcement and traffic administration.The measuring principle of current domestic vehicle overspeed-monitoring system is mostly radar velocity measurement, ground sensing coil speed measuring, laser velocimeter etc.For the vehicle overspeed-monitoring system of different measuring principles, by the requirement of corresponding measurement vertification regulation, all need first to simulate calibrating, then carry out proving ground test calibrating, and take proving ground test verification result as final foundation.Therefore, proving ground test calibrating link is very important.But adopt at present the calibration method of proving ground test, need to take road closed measure, larger on road traffic impact, testing person drives repeatedly to run in fact, consuming time large, efficiency is low, and potential safety hazard is also larger, therefore we think deeply the more high-precision velocity radar of employing, utilize the public vehicles on road to realize road examination calibrating.
This calibrating basic ideas and OIML R91-1990 < < motor vehicle radar meter > > international recommendation, and the IACP RADAR Module-2004 < < of leader association of international police force motor vehicle radar meter general technical specifications > > is consistent.Just the existing proving ground test calibrating of China adopts standard speed car (inspection vehicle+vehicle-mounted standard speed instrument) modes to examine and determine more, and the many employings of external proving ground test calibrating public vehicles add the more mode of high precision speed-measuring instrument and examine and determine.The latter, after having solved high precision test car speed technical barrier, has stronger operability and practicality.The domestic calibrating installation without this type of principle before this, the solution of this proposition, is one to traditional calibrating installation and supplements greatly, is also the trend of calibrating development of testing the speed future.
Automatic monitoring system for automobile overspeed is as the instrument of the illegal punishment of hypervelocity, it is the measurement instrument that national regulation must be forced periodic calibration, data accuracy is concerning people's immediate interests and government department's law enforcement image, and it is huge at consumption, conventionally need to detect at use scene.
Summary of the invention
In order to solve the problems of the prior art, the utility model provides a kind of automatic monitoring system for automobile overspeed on-the-spot range rate error calibrating installation, when proving ground test is examined and determine in solution prior art, need to take road closed measure, larger on road traffic impact, testing person drives repeatedly to run in fact, consuming time large, efficiency is low, and potential safety hazard is larger problem also.
The technical scheme that the utility model solution prior art problem adopts is: the on-the-spot range rate error calibrating installation of a kind of automatic monitoring system for automobile overspeed of Design and manufacture, comprises vehicle-mounted standard speed instrument, radar velocity measurement device, video camera, RS232 interface, data acquisition unit; Described radar velocity measurement device is connected by RS232 interface with described video camera, and described video camera is connected by RS485 or netting twine with data acquisition unit.
The utility model further improves: on described radar velocity measurement device, speed adjusting key is installed, described speed adjusting key is connected with described video camera by RS232 interface.
The utility model further improves: on described radar velocity measurement device, alarm buzzer is installed, described alarm buzzer is connected with described speed adjusting key.
The utility model further improves: described video camera is that No. 8 flashlamp are synchronously exported video camera.
The utility model further improves: the on-the-spot range rate error calibrating installation of described automatic monitoring system for automobile overspeed also comprises signal detector, traffic light signal and trigger switch, and described traffic light signal, signal detector and trigger switch are connected successively; Described trigger switch is connected with described video camera.
The beneficial effects of the utility model are: the public vehicles of take are examined and determine as tested speed source, significantly improve calibrating efficiency and reduce calibrating cost.
Accompanying drawing explanation
Fig. 1 is the on-the-spot range rate error calibrating installation calibrating of automatic monitoring system for automobile overspeed schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The on-the-spot range rate error calibrating installation of automatic monitoring system for automobile overspeed, comprises radar velocity measurement device, video camera, RS232 interface, data acquisition unit; Described radar velocity measurement device is connected by RS232 interface with described video camera, and described video camera is connected by RS485 or netting twine with data acquisition unit.
On described radar velocity measurement device, speed adjusting key is installed, described speed adjusting key is connected with described video camera by RS232 interface.
On described radar velocity measurement device, alarm buzzer is installed, described alarm buzzer is connected with described speed adjusting key.
Described video camera is that No. 8 flashlamp are synchronously exported video camera.
The on-the-spot range rate error calibrating installation of described automatic monitoring system for automobile overspeed also comprises signal detector, traffic light signal and trigger switch, and described traffic light signal, signal detector and trigger switch are connected successively; Described trigger switch is connected with described video camera.
In one embodiment, as Fig. 1, high precision speed-measuring radar, intelligent transportation high-definition network camera, transmission line, data acquisition unit are the ingredients of this calibrating installation.Configured radar velocity measurement analog detection standard set-up, ground sensing coil speed measuring analog detection standard set-up and vehicle-mounted standard speed instrument simultaneously.Vehicle-mounted standard speed instrument tests the speed by GPS Doppler shift shift theory, calculates in real time and show self speed of inspection vehicle operation.When inspection vehicle is by testing the speed region and when hypervelocity, video camera automatic shooting inspection vehicle, and show the velocity amplitude of this car.Inspection vehicle on plug-in display screen self standard speed value is also taken in the lump.Only two velocity amplitudes need be compared, can realize the detection/calibration to vehicle overspeed-monitoring system.Vehicle-mounted standard speed instrument install and use very simple, convenient, fast and safety, only need magnetic GPS receiving antenna to be adsorbed on roof, plug-in display screen is suspended on headstock or the tailstock.
The utility model will be take public vehicles as target velocity source, neck near position at vehicle overspeed-monitoring system, set up more high-precision motor vehicle speed checkout equipment, to the public vehicles in identical speed monitoring and image acquisition region, carry out synchro measure, Sync image capture, realizes the assay calibration to hypervelocity monitoring system by the speed value that contrasts the two.The speed calibrating point of national rule regulation determines according to speed limit point, and speed limit point is again according to the artificial setting of road conditions, and in other words, it is very strict that speed measuring point definite do not need, and need to select the speed point of ladder degree distribution just passable.When the measuring error of speed measuring point is < 100km/h, being (6 ~ 0) km/h, during >=100km/h, is (6 ~ 0) %, can only be namely minus deviation, once there be overgauge just to need to adjust.The calibrating of this equipment is in order to examine and determine the linearity of road hypervelocity automatic monitoring system, therefore can to measure abundant public vehicles sample, then gets the measured value of following 50% to the 80% left and right speed of speed limit point and analyzes.This is the measurement means in early stage of calibration operation, reaches the object of adjusting hypervelocity monitoring system velocity amplitude linearity by this equipment, and last checking still adopts the method for real vehicle trafficability characteristic road examination to complete.Fact proved, traditional calibration operation, the plenty of time is to be consumed in the adjusting stage in early stage, once early stage, linear adjustment finished, just much more simply later stage proving ground test.Therefore the public vehicles of usining are examined and determine as tested speed source, can significantly promote calibrating efficiency.
Intelligent transportation high-definition network camera is one of core of native system, it receives High Accuracy Radar tachometer signal, according to velocity amplitude trigger switch, driving vehicle is taken pictures, send data to data collecting card, by integrated software of control center, data file is carried out in real time or preserves and process.
The signal that triggers intelligent transportation high-definition network camera is the signal being sent by high precision speed-measuring radar, and control signal is sent to intelligent transportation high-definition network camera by RS485 interface, and in 100ms, starts triggering image acquisition.
High precision velocity measurement is to be completed by high precision speed-measuring radar, and the velocity radar velocity survey resolution of employing can reach 0.1km/h, and velocity survey precision is ± 1%, reaches the object of high precision speed-measuring.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (5)
1. the on-the-spot range rate error calibrating installation of automatic monitoring system for automobile overspeed, comprises vehicle-mounted standard speed instrument, it is characterized in that: comprise radar velocity measurement device, video camera, RS232 interface, data acquisition unit; Described radar velocity measurement device is connected by RS232 interface with described video camera, and described video camera is connected by RS485 or netting twine with data acquisition unit.
2. the on-the-spot range rate error calibrating installation of automatic monitoring system for automobile overspeed according to claim 1, is characterized in that: on described radar velocity measurement device, speed adjusting key is installed, described speed adjusting key is connected with described video camera by RS232 interface.
3. the on-the-spot range rate error calibrating installation of automatic monitoring system for automobile overspeed according to claim 2, is characterized in that: on described radar velocity measurement device, alarm buzzer is installed, described alarm buzzer is connected with described speed adjusting key.
4. the on-the-spot range rate error calibrating installation of automatic monitoring system for automobile overspeed according to claim 1, is characterized in that: described video camera is that No. 8 flashlamp are synchronously exported video camera.
5. the on-the-spot range rate error calibrating installation of automatic monitoring system for automobile overspeed according to claim 1, it is characterized in that: the on-the-spot range rate error calibrating installation of described automatic monitoring system for automobile overspeed also comprises signal detector, traffic light signal and trigger switch, and described traffic light signal, signal detector and trigger switch are connected successively; Described trigger switch is connected with described video camera.
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| CN201320648977.5U CN203535815U (en) | 2013-10-21 | 2013-10-21 | Field speed measurement error verification device of motor vehicle overspeed automatic monitoring system |
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| CN201320648977.5U CN203535815U (en) | 2013-10-21 | 2013-10-21 | Field speed measurement error verification device of motor vehicle overspeed automatic monitoring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137124A (en) * | 2015-06-16 | 2015-12-09 | 辽宁省计量科学研究院 | High-precision highway speedometer calibration device |
| CN109946483A (en) * | 2019-04-15 | 2019-06-28 | 北京市计量检测科学研究院 | Test the speed standard set-up for a kind of scene |
| CN111289949A (en) * | 2018-12-10 | 2020-06-16 | 广州汽车集团股份有限公司 | Blind area monitoring radar test method and device |
| CN113409590A (en) * | 2021-06-18 | 2021-09-17 | 福建省计量科学研究院（福建省眼镜质量检验站） | Tachymeter on-site verification system based on Internet of things |
| CN114333351A (en) * | 2020-09-30 | 2022-04-12 | 宇龙计算机通信科技(深圳)有限公司 | Vehicle speed monitoring method and device, storage medium and electronic equipment |
-
2013
- 2013-10-21 CN CN201320648977.5U patent/CN203535815U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137124A (en) * | 2015-06-16 | 2015-12-09 | 辽宁省计量科学研究院 | High-precision highway speedometer calibration device |
| CN111289949A (en) * | 2018-12-10 | 2020-06-16 | 广州汽车集团股份有限公司 | Blind area monitoring radar test method and device |
| CN111289949B (en) * | 2018-12-10 | 2021-03-09 | 广州汽车集团股份有限公司 | Blind area monitoring radar test method and device |
| CN109946483A (en) * | 2019-04-15 | 2019-06-28 | 北京市计量检测科学研究院 | Test the speed standard set-up for a kind of scene |
| CN114333351A (en) * | 2020-09-30 | 2022-04-12 | 宇龙计算机通信科技(深圳)有限公司 | Vehicle speed monitoring method and device, storage medium and electronic equipment |
| CN113409590A (en) * | 2021-06-18 | 2021-09-17 | 福建省计量科学研究院（福建省眼镜质量检验站） | Tachymeter on-site verification system based on Internet of things |
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