CN204557788U - Based on the traffic incidents detection device of microwave - Google Patents
Based on the traffic incidents detection device of microwave Download PDFInfo
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- CN204557788U CN204557788U CN201520289358.0U CN201520289358U CN204557788U CN 204557788 U CN204557788 U CN 204557788U CN 201520289358 U CN201520289358 U CN 201520289358U CN 204557788 U CN204557788 U CN 204557788U
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- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 38
- 230000007613 environmental effect Effects 0.000 abstract description 6
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- 238000009434 installation Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 5
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Abstract
The utility model provides a kind of traffic incidents detection device based on microwave, this traffic incidents detection device comprises microwave remote sensor, microwave remote sensor administration module, processor, output communication module and power management module, described microwave remote sensor administration module input end is connected with described microwave remote sensor, described microwave remote sensor administration module output terminal is connected with described processor input end, processor output terminal is connected with described output communication module, and power management module is connected with described processor with described microwave remote sensor administration module respectively.The beneficial effects of the utility model are: the utility model adopts microwave remote sensor as traffic information collection front end, its environmental suitability and equipment later maintenance will be far superior to the existing video frequency event examines equipment based on optics, simultaneously, microwave remote sensor itself is owing to adopting millimere-wave band, so antenna size is very little, microwave remote sensor itself is also very little, and to later device, construction and installation are also very convenient and simple at the scene.
Description
Technical field
The utility model relates to traffic incidents detection technical field, particularly relates to the traffic incidents detection device based on microwave.
Background technology
Along with the fast development of China's economy, China's vehicle guaranteeding organic quantity increases day by day, and traffic pressure grows with each passing day, and traffic offence phenomenon is more and more general, and traffic offence becomes obstruction China traffic safety, orderly, unimpeded key factor.Current China road traffic law-enforcing environment is faced with immense pressure, is mainly reflected in supervision broad covered area, road surface police strength deficiency, the high aspect of Law Enforcement Technology requirement.In recent years, traffic incident detecting system arises at the historic moment in this context, the detection technique that in-site installation and home or overseas traffic incident detecting system on sale have all adopted at present is the CCTV camera collection traffic image data based on optics, adopt the object extraction algorithm based on variation of image grayscale, detection and tracking is carried out to moving vehicle, carries out judging to occurred traffic events and warn.
The data source that existing traffic incident detecting system adopts all adopts the mode of video image, and these data sources come from optical device, has so there is shortcoming in practice:
Adopt based on the target extraction method of variation of image grayscale, detection speed and precision poor.
The precision of carrying out event detection night is lower than daytime;
Be very easy to the impact receiving the environmental factors such as inclement weather, light, shade;
All equipment based on camera lens work all needs usually wiping and maintenance, so later maintenance cost is also very high;
The results such as to cause existing traffic incident detecting system rate of false alarm very high for these shortcomings above, accuracy of detection difference.
Utility model content
In order to solve the problems of the prior art, the utility model provides a kind of traffic incidents detection device based on microwave.
The utility model provides a kind of traffic incidents detection device based on microwave, comprise microwave remote sensor, microwave remote sensor administration module, processor, output communication module and power management module, described microwave remote sensor administration module input end is connected with described microwave remote sensor, described microwave remote sensor administration module output terminal is connected with described processor input end, described processor output terminal is connected with described output communication module, and described power management module is connected with described processor with described microwave remote sensor administration module respectively.
As further improvement of the utility model, described output communication module comprises industrial-controlled general line module, and described industrial-controlled general line module input is connected with described processor.
As further improvement of the utility model, described output communication module comprises network communication module, and described network communication module input end is connected with described processor.
As further improvement of the utility model, described output communication module comprises video capture trigger module, and described video capture trigger module input end is connected with described processor.
As further improvement of the utility model, this traffic incidents detection device also comprises memory module, and described memory module is connected with described processor.
As further improvement of the utility model, this traffic incidents detection device also comprises communication module, and described communication module is connected with described microwave remote sensor administration module with described processor respectively.
As further improvement of the utility model, described communication module is RS232 serial communication modular or RS485 serial communication modular.
The beneficial effects of the utility model are: the utility model is compared to the existing event detection system based on optical video, what microwave remote sensor adopted is that (microwave remote sensor is active emitting electromagnetic wave in surveyed area for active detecting detection mode, analyzed by the electromagnetic wave reflected), transmitting terminal and receiving end are all known controlled, but the sensor based on optical camera needs to analyze target by means of the reflection of available light on object, so, sensor based on optical camera easily receives the impact of the rugged surroundings such as overcast and rainy haze, traffic incident detecting system environmental suitability based on microwave will be far superior to the video frequency event examines equipment of existing optics, the object extraction algorithm that the existing video frequency event examines system based on optics adopts carries out target by grey scale change to test the speed and to measure with range ability, the while that this kind of mode detection speed being longer, precision is poor, event detection system based on microwave mode adopts Doppler's principle to carry out speed distance to detect, utilize microwave target detection technique, reconstructed object motion track carries out abnormal traffic event detecting method according to preset rules.The utility model adopts microwave remote sensor as traffic information collection front end, its environmental suitability and equipment later maintenance will be far superior to the existing video frequency event examines equipment based on optics, simultaneously, microwave remote sensor itself is owing to adopting millimere-wave band, so antenna size is very little, microwave remote sensor itself is also very little, and to later device, construction and installation are also very convenient and simple at the scene.
Accompanying drawing explanation
Fig. 1 is traffic incidents detection principle of device block diagram of the present utility model;
Fig. 2 is the circuit diagram of power management module of the present utility model;
Fig. 3 is traffic incidents detection method flow diagram of the present utility model;
Fig. 4 is that the utility model is set up coordinate system and configures lane information figure;
Fig. 5 triggers arrangement plan according to customer demand event of carrying out;
Fig. 6 is the figure that the target data provided in the microwave remote sensor cycle carries out following the tracks of.
Embodiment
As shown in Figure 1, 2, the utility model discloses a kind of traffic incidents detection device based on microwave, comprise microwave remote sensor, microwave remote sensor administration module, processor, output communication module and power management module, described microwave remote sensor administration module input end is connected with described microwave remote sensor, described microwave remote sensor administration module output terminal is connected with described processor input end, described processor output terminal is connected with described output communication module, and described power management module is connected with described processor with described microwave remote sensor administration module respectively.
Described output communication module comprises industrial-controlled general line module, and described industrial-controlled general line module input is connected with described processor.
Described output communication module comprises network communication module, and described network communication module input end is connected with described processor.
Described output communication module comprises video capture trigger module, and described video capture trigger module input end is connected with described processor.
This traffic incidents detection device also comprises memory module, and described memory module is connected with described processor.
This traffic incidents detection device also comprises communication module, and described communication module is connected with described microwave remote sensor administration module with described processor respectively.
Described communication module is RS232 serial communication modular or RS485 serial communication modular.
As shown in Figure 3, the invention also discloses a kind of traffic incidents detection method based on microwave, perform following steps successively:
Step S1, data providing step, microwave remote sensor periodically provides original target data;
Step S2, sets up coordinate system step, take microwave remote sensor as initial point, to be parallel to direction, track for X-axis, with perpendicular to direction, track for Y-axis, set up coordinate system;
Step S3, treatment step, carries out target classification by each target, calculates each target position in a coordinate system, calculates the velocity amplitude of each target relative to X-direction and Y-direction;
Step S4, target following treatment step, to the target data that the microwave remote sensor cycle provides, carry out tax ID by track algorithm to target and number, each target comprises following content: 1. target designation, 2. target real-time speed, 3. target real-time coordinates, 4. target type;
Step S5, analytical procedure, based on the tracking to each target, analyze the surveyed area of each target, this analysis is analyzed user-customized event testing requirement by model bank;
Step S6, triggered step, captures trigger module by illegal target triggering video;
Step S7, actuation step, video capture trigger module drives external camera to carry out illegal target and captures evidence obtaining.
In described data providing step, original target data comprises target relative velocity, target relative distance, target relative rotational angular degree, target reflection cross section;
In described treatment step, the reflection cross section of each target provided according to microwave remote sensor carries out target classification, calculate each target position in a coordinate system according to the relative angle of each target and distance, calculated the velocity amplitude of each target relative to X-direction and Y-direction by the relative velocity of each target.
In described triggered step, comprising:
Target reverse driving, is supplied to video capture trigger module by coordinates of targets;
Target is driven over the speed limit, and coordinates of targets is supplied to video capture trigger module;
Coordinates of targets, not according to regulation lanes, is supplied to video capture trigger module by target;
Target is illegal parking in no-parking zone, coordinates of targets is supplied to video capture trigger module;
In track, vehicle queue length is long, coordinates of targets is supplied to video capture trigger module.
Forbid the region memory of pedestrian and non-automotive vehicle target be bicycle or pedestrian time, coordinates of targets is supplied to video capture trigger module.
The deficiency that the utility model exists for the existing event detection system based on video, the utility model adopts microwave remote sensor as traffic information collection front end, the microwave remote sensor frequency of utilization wave band adopted is 30GHz ~ 300GHz (wavelength coverage: 1mm ~ 10mm), this frequency range is the particular frequency bands between electric wave and light wave, possess the detection accuracy of optics and all weather operations characteristic of electric wave, its environmental suitability and equipment later maintenance will be far superior to the existing video frequency event examines equipment based on optics, simultaneously, sensor itself is owing to adopting millimere-wave band, so antenna size is very little, sensor itself is also very little, to later device, construction and installation are also very convenient and simple at the scene.
As shown in Figure 5, according to customer demand, dependent event trigger parameter (such as: queue length limit value, parking offense region, not according to regulation lanes region) in customization region.
In the utility model, traffic incidents detection device and method environmental suitability based on microwave is strong, can at rain, snow, mist, normally work under the severe optical condition such as haze sand and dust, compensate for video completely detects not enough, based on the event detecting method rate of false alarm of microwave also well below existing video system, coordinate existing video capture equipment, the event detection system of complete set can be set up, the birth of this cover system can improve the deficiency of the existing event detection system based on video greatly, reduce rate of false alarm, alleviate the labour intensity of vast traffic police, ensure that the Timeliness coverage to all kinds of case-involving vehicle and investigation, effectively improve traffic safety, order and smoothness.
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, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (7)
1. the traffic incidents detection device based on microwave, it is characterized in that: comprise microwave remote sensor, microwave remote sensor administration module, processor output communication module and power management module, described microwave remote sensor administration module input end is connected with described microwave remote sensor, described microwave remote sensor administration module output terminal is connected with described processor input end, described processor output terminal is connected with described output communication module, and described power management module is connected with described processor with described microwave remote sensor administration module respectively.
2. traffic incidents detection device according to claim 1, is characterized in that: described output communication module comprises industrial-controlled general line module, and described industrial-controlled general line module input is connected with described processor.
3. traffic incidents detection device according to claim 1, is characterized in that: described output communication module comprises network communication module, and described network communication module input end is connected with described processor.
4. traffic incidents detection device according to claim 1, is characterized in that: described output communication module comprises video capture trigger module, and described video capture trigger module input end is connected with described processor.
5. traffic incidents detection device according to claim 1, is characterized in that: this traffic incidents detection device also comprises memory module, and described memory module is connected with described processor.
6. the traffic incidents detection device according to any one of claim 1 to 5, is characterized in that: this traffic incidents detection device also comprises communication module, and described communication module is connected with described microwave remote sensor administration module with described processor respectively.
7. traffic incidents detection device according to claim 6, is characterized in that: described communication module is RS232 serial communication modular or RS485 serial communication modular.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520289358.0U CN204557788U (en) | 2015-05-06 | 2015-05-06 | Based on the traffic incidents detection device of microwave |
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| CN201520289358.0U CN204557788U (en) | 2015-05-06 | 2015-05-06 | Based on the traffic incidents detection device of microwave |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867331A (en) * | 2015-05-06 | 2015-08-26 | 南京慧尔视智能科技有限公司 | Microwave-based traffic incident detection method and apparatus |
| CN110718062A (en) * | 2019-10-24 | 2020-01-21 | 南京慧尔视智能科技有限公司 | Large-area multi-target traffic incident detection system and method |
| US10710537B2 (en) | 2017-08-18 | 2020-07-14 | Volvo Car Corporation | Method and system for detecting an incident , accident and/or scam of a vehicle |
-
2015
- 2015-05-06 CN CN201520289358.0U patent/CN204557788U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867331A (en) * | 2015-05-06 | 2015-08-26 | 南京慧尔视智能科技有限公司 | Microwave-based traffic incident detection method and apparatus |
| US10710537B2 (en) | 2017-08-18 | 2020-07-14 | Volvo Car Corporation | Method and system for detecting an incident , accident and/or scam of a vehicle |
| CN110718062A (en) * | 2019-10-24 | 2020-01-21 | 南京慧尔视智能科技有限公司 | Large-area multi-target traffic incident detection system and method |
| CN110718062B (en) * | 2019-10-24 | 2022-01-21 | 南京慧尔视智能科技有限公司 | Large-area multi-target traffic incident detection system and method |
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Granted publication date: 20150812 |