CN107067747A - A kind of composite automotive detector and its detection method - Google Patents
A kind of composite automotive detector and its detection method Download PDFInfo
- Publication number
- CN107067747A CN107067747A CN201710389771.8A CN201710389771A CN107067747A CN 107067747 A CN107067747 A CN 107067747A CN 201710389771 A CN201710389771 A CN 201710389771A CN 107067747 A CN107067747 A CN 107067747A
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- signal
- earth magnetism
- detection unit
- radar detection
- logic judgment
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of composite automotive detector and its detection method, composite automotive detector includes earth magnetism vehicle checker, radar detection unit, logic judgment and signal processor and signal output unit, and earth magnetism vehicle checker, radar detection unit and signal output unit are connected with logic judgment and signal processor communication.Vehicle is carried out using earth magnetism vehicle checker and enters judgement, judgement is installed to the signal of the radar detection unit of track side simultaneously, signal processor is handled and logic judgment the earth magnetism vehicle checker signal and millimetre-wave radar detection unit signal that receive, and by signal output unit output the result after processing then is had into car signal and without car signal.The complementation approach that the present invention passes through detections of radar, avoid and geomagnetism detecting device is used alone has the phenomenon that can't detect for vehicle middle chassis is too high, it is not very sensitive phenomenon to earth's magnetic field that some particular vehicles, which can also be avoided, with vehicle detection precision is high, fast response time the features such as.
Description
Technical field
The invention belongs to transit equipment technical field, a kind of composite automotive detector and its detection are particularly related to
Method.
Background technology
Detector of traffic information can be divided into embedded type and suspension type according to mounting means, from cost performance and high reliability etc.
Aspect considers, using it is most be still loop vehicle detector.But this loop coil of the prior art
The detection method of formula wagon detector also has the disadvantage that：1st, coil must be embedded in installation or directly track when safeguarding, so
Traffic can be temporarily hindered；2nd, the joint-cutting of embedding coil has softened road surface, is easily damaged road surface, vehicle launch or braking
When damage may be more serious；3rd, induction coil easily by freezing, subgrade settlement, the natural environment such as saline and alkaline influenceed；4th, sense
Coil is limited by the measuring principle of itself, when wagon flow congestion, when following distance is less than 3m, its accuracy of detection slightly under
Drop.
Earth magnetism wagon detector be using magnetic field of the earth ferromagnetic object by when change detect, so it is not bullied
The influence of time, earth magnetism wagon detector is not reacted nonferromagnetic object, therefore can efficiently reduce flase drop.But it is existing
Earth magnetism wagon detector in technology has the disadvantage that：For vehicle middle chassis it is too high when have the phenomenon that can't detect；Also
It is not very sensitive etc. to earth's magnetic field to have some particular vehicles.Radar vehicle detector is believed using modern microwave technology and high-speed figure
Number treatment technology, with high accuracy, exempt from debugging and high stability the features such as, for control expressway entrance and exit, parking lot and
The candid photograph for rising and falling and triggering high definition card video camera of underground garage gateway automatic railing.But radar vehicle of the prior art
Detector has the disadvantage that：Pedestrian is in particular cases easily mistaken for vehicle by it some.
The content of the invention
There is provided a kind of vehicle detection precision height, fast response time in order to overcome the deficiencies in the prior art by the present invention
Composite automotive detector and its detection method.
The present invention is achieved by the following technical solutions：A kind of composite automotive detector, it include earth magnetism vehicle checker,
Radar detection unit, logic judgment and signal processor and signal output unit, earth magnetism vehicle checker, radar detection unit and letter
Number output unit is connected with logic judgment and signal processor communication, and earth magnetism vehicle checker is embedded in track ground, detections of radar
Unit is installed on track side.
Composite automotive detector in the present invention also includes control system, barrier machine and capture machine, earth magnetism vehicle checker and
Radar detection unit passes through logic judgment and signal processor and signal output unit and control system, barrier machine and capture machine
Communication connection.
The vehicle checking method of composite automotive detector of the present invention, it uses the progress vehicle entrance of earth magnetism vehicle checker to sentence
Disconnected, while judge to be installed to the signal of the radar detection unit of track side, logic judgment and signal processor are to receiving
Earth magnetism vehicle checker signal and millimetre-wave radar detection unit signal are handled and logic judgment, then lead to the result after processing
Crossing signal output unit output has car signal and without car signal.
The signal transmission of vehicle checking method of the present invention and control mode are：The signal of earth magnetism vehicle checker and it is installed to track
The signal of the radar detection unit of side is transferred to logic judgment and signal processor by the way of low and high level；Work as earth magnetism
When vehicle checker and radar detection unit have detected car signal, earth magnetism vehicle checker or radar detection unit just upload a high level
Testing result is passed through 485 by signal to logic judgment and signal processor, logic judgment and signal processor by logical operation
Serial ports reports host computer, it is ensured that the distance of signal transmission and the security and stability of signal transmission.
Wherein earth magnetism wagon detector is that the ferromagnetic material that contains of vehicle in itself can be to the Geomagnetic signal of vehicle domain of the existence
Influence is produced, the geomagnetic chart linesofforce of vehicle domain of the existence is bent, when vehicle passes through sensor proximity, sensor being capable of spirit
The quick change for perceiving signal, the relevant information of detection target is can be obtained by through signal analysis.Geomagnetic sensor is to utilize ground
Signal magnetic field ferromagnetic object by when change detect that, so the influence of its not climate, it does not have to nonferromagnetic object
Reaction, therefore flase drop can be efficiently reduced.
Detections of radar namely sends out radio wave both radar wave, then receives echo, according between transmitting-receiving when
Between difference measure the position data of target.The characteristics of microwave and millimetre-wave radar have small volume, light weight and high spatial resolution,
In addition the characteristics of radar has penetrating fog, cigarette and strong dust ability.
The beneficial effects of the invention are as follows：The present invention passes through logic judgment and the logic judgment and analysis ability of signal processor
Earth magnetism car test signal is received, while the complementation approach for passing through detections of radar, it is to avoid geomagnetism detecting device is used alone for vehicle
Middle chassis is too high to have the phenomenon that can't detect, additionally it is possible to which it is not very sensitive show to earth's magnetic field to avoid some particular vehicles
As.In the features such as composite automotive detecting system in the present invention has high vehicle detection precision, fast response time, the present invention
Vehicle detecting system can be good at adapting to various environment simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of composite automotive detector of the present invention；
Fig. 2 is the working state structure schematic diagram of composite automotive detector of the present invention；
In figure：D1- earth magnetism vehicle checkers；D2- radar detection units；M1- logic judgments and signal processor；O1- signal output lists
Member.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1 to Figure 2, a kind of composite automotive detector, it includes earth magnetism vehicle checker D1, radar detection unit
D2, logic judgment and signal processor M1 and signal output unit O1, earth magnetism vehicle checker D1, radar detection unit D2 and signal
Output unit O1 is connected with logic judgment and signal processor M1 communications, and earth magnetism vehicle checker D1 is embedded in track ground, radar
Detection unit D2 is installed on track side.Composite automotive detector in the present invention also includes control system, barrier machine and grabbed
Bat machine, earth magnetism vehicle checker D1 and radar detection unit D2 pass through logic judgment and signal processor M1 and signal output unit O1
It is connected with the communication of control system, barrier machine and capture machine.
The vehicle checking method of composite automotive detector of the present invention, it uses earth magnetism vehicle checker D1 progress vehicle entrance to sentence
Disconnected, while judging to be installed to the radar detection unit D2 of track side signal, logic judgment and signal processor M1 are to receiving
To earth magnetism vehicle checker D1 signals and millimetre-wave radar detection unit D2 signals handled and logic judgment, then will processing after
Result by signal output unit O1 output have car signal and without car signal.
The signal transmission of vehicle checking method of the present invention and control mode are：Earth magnetism vehicle checker D1 signal and it is installed to car
The radar detection unit D2 of road side signal is transferred to logic judgment and signal processor M1 by the way of low and high level；
When earth magnetism vehicle checker D1 and radar detection unit D2 have detected car signal, earth magnetism vehicle checker D1 or radar detection unit D2 are just
Upload a high level signal and pass through logical operation to logic judgment and signal processor M1, logic judgment and signal processor M1
Testing result is reported into host computer by 485 serial ports, it is ensured that the distance of signal transmission and the security and stability of signal transmission.
The logical relation of vehicle checking method of the present invention is：Detection method is believed with the detection of earth magnetism wagon detector
Based on number, radar detection unit D2 detection signal only serves booster action：
1st, when D1/D2 reports signal simultaneously, M1 is then judged as there is car signal, and detection information is reported into host computer；
2nd, when D1 have signal upload, D2 no signals upload and D2 working conditions it is normal when, M1 judges D1 for interference signal, not on
Pass signal；
3rd, when D1 has signal upload, D2 no signals to upload and D2 working conditions are abnormal, M1 judges D1 for normal signal, and uploads
Signal ensures Pedestrians and vehicles safety；
4th, when D2 have signal upload, D1 no signals upload and D1 working conditions it is normal when, M1 judges D2 for interference signal, not on
Pass signal；
5th, when D2 has signal upload, D1 no signals to upload and D1 working conditions are abnormal, M1 judges D2 for normal signal, and uploads
Signal ensures Pedestrians and vehicles safety.
D1 common interference signals：D1 sensitivity is too high, vehicle monkey chatter；Artificial disturbance, such as pedestrian should by metal pressure sensitivity
Device is caused.
D2 common interference signals：It is by mistake vehicle by pedestrian determination, reports trigger signal.
Finally it should be noted that above content is merely illustrative of the technical solution of the present invention, rather than to present invention protection
The limitation of scope, simple modification or equivalent substitution that one of ordinary skill in the art is carried out to technical scheme,
All without departing from the spirit and scope of technical solution of the present invention.
Claims (4)
1. a kind of composite automotive detector, it is characterised in that：The composite automotive detector includes earth magnetism vehicle checker, radar
Detection unit, logic judgment and signal processor and signal output unit, the earth magnetism vehicle checker, radar detection unit and letter
Number output unit is connected with the logic judgment and signal processor communication, and the earth magnetism vehicle checker is embedded in track ground,
The radar detection unit is installed on track side.
2. a kind of composite automotive detector according to claim 1, it is characterised in that：The composite automotive detector
Also include control system, barrier machine and capture machine, the earth magnetism vehicle checker and radar detection unit pass through logic judgment and signal
Processor and signal output unit are connected with the communication of the control system, barrier machine and capture machine.
3. the vehicle checking method of composite automotive detector according to claim 1 or 2, it is characterised in that：The car
Detection method carries out vehicle using earth magnetism vehicle checker and entered to judge, while judging to be installed to the radar detection unit of track side
Signal, the logic judgment and signal processor are believed the earth magnetism vehicle checker signal and millimetre-wave radar detection unit that receive
Number handled and logic judgment, the result after processing is then had into car signal and without car by signal output unit output
Signal.
4. the vehicle checking method of composite automotive detector according to claim 3, it is characterised in that：The vehicle inspection
The signal transmission of survey method and control mode are：The signal of earth magnetism vehicle checker and the radar detection unit for being installed to track side
Signal is transferred to logic judgment and signal processor by the way of low and high level；When earth magnetism vehicle checker and radar detection unit
When having detected car signal, earth magnetism vehicle checker or radar detection unit just upload a high level signal to logic judgment and signal
Testing result is reported host computer by processor, logic judgment and signal processor by logical operation by 485 serial ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710389771.8A CN107067747A (en) | 2017-05-27 | 2017-05-27 | A kind of composite automotive detector and its detection method |
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| CN201710389771.8A CN107067747A (en) | 2017-05-27 | 2017-05-27 | A kind of composite automotive detector and its detection method |
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| CN107067747A true CN107067747A (en) | 2017-08-18 |
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| CN201710389771.8A Pending CN107067747A (en) | 2017-05-27 | 2017-05-27 | A kind of composite automotive detector and its detection method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108053655A (en) * | 2018-01-11 | 2018-05-18 | 合肥恩维智能科技有限公司 | A kind of compound earth magnetism wagon detector and detection method |
| CN109003458A (en) * | 2018-08-09 | 2018-12-14 | 河海大学常州校区 | Crossing vehicle violation based on three axis geomagnetic sensors monitors system and method |
| CN109584547A (en) * | 2018-08-28 | 2019-04-05 | 苏州思卡信息系统有限公司 | Intelligently prevent pounding to beat escaping detection system and detection method in the lane ETC |
| CN110400485A (en) * | 2018-04-24 | 2019-11-01 | 中兴通讯股份有限公司 | Method, apparatus, server and the storage medium of parking stall state-detection |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108053655A (en) * | 2018-01-11 | 2018-05-18 | 合肥恩维智能科技有限公司 | A kind of compound earth magnetism wagon detector and detection method |
| CN110400485A (en) * | 2018-04-24 | 2019-11-01 | 中兴通讯股份有限公司 | Method, apparatus, server and the storage medium of parking stall state-detection |
| CN109003458A (en) * | 2018-08-09 | 2018-12-14 | 河海大学常州校区 | Crossing vehicle violation based on three axis geomagnetic sensors monitors system and method |
| CN109584547A (en) * | 2018-08-28 | 2019-04-05 | 苏州思卡信息系统有限公司 | Intelligently prevent pounding to beat escaping detection system and detection method in the lane ETC |
| CN109584547B (en) * | 2018-08-28 | 2021-07-06 | 苏州思卡信息系统有限公司 | Intelligent anti-smashing and anti-escaping detection system and detection method for ETC lane |
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Application publication date: 20170818 |
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