CN207164245U - A kind of ETC sluice gates carry out car test examining system - Google Patents
A kind of ETC sluice gates carry out car test examining system Download PDFInfo
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- CN207164245U CN207164245U CN201721068797.4U CN201721068797U CN207164245U CN 207164245 U CN207164245 U CN 207164245U CN 201721068797 U CN201721068797 U CN 201721068797U CN 207164245 U CN207164245 U CN 207164245U
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Abstract
What the utility model disclosed a kind of ETC sluice gates comes car test examining system, including microwave radar detector, IF signal processing module, MCU module, power module；Power module is respectively to microwave radar detector, IF signal processing module, MCU module power supply；Microwave radar detector launches radar signal to target vehicle, a part for the signal is reflected and received by microwave radar detector by target vehicle, and the signal that microwave radar detector will reflect back into through IF signal processing module is transmitted to MCU module after being mixed with former radar signal；The MCU module detects the operation information of target vehicle according to the mixed signal, and outside ETC control terminals obtain the operation information and adjust the beam direction of its communication antenna unit accordingly.The utility model is easy for installation, and position, angle and the velocity information of car are come to ETC system offer, is easy to accurate tracking/identification of Car license recognition and ETC control terminals, improves communication efficiency and reliability.
Description
Technical field
It the utility model is related to technical field of intelligent traffic, more particularly to a kind of ETC sluice gates carry out car test examining system.
Background technology
ETC (no-stop charging system) dedicated Lanes are that full name is ETC charge platforms, are to utilize automatic vehicle identification skill
Art completes the wireless data communication between vehicle and charge station, carries out automatic vehicle identification and the exchange about charge data, leads to
The processing that Computer network carries out charge data is crossed, realizes the all-electronin toll collection system of not parking automatic charging.ETC is in the world
Make great efforts a kind of automatic electronic charging system for highway, bridge and tunnel developed and promoted.The technology is abroad
There is the E-payment system of many countries and regions such as longer developing history, the U.S., Europe locally networked and progressively shape
Benefit on a large scale.
The car test examining system that comes of existing ETC sluice gates uses ground induction coil or optical induction system.Ground induction coil is adopted
It is that buried concussion coil forms concussion loop, the medium that space is changed when there is metal object (such as automobile) close enters
And frequency is shaken, changes of the MCU by shaking frequency determines whether that vehicle passes through；Optical induction system is using by right
Light block or reflect determine whether vehicle pass through.
The problem of big installation quantities, constructional difficulties all be present in the car test examining system that comes of both ETC sluice gates, and only
It can measure whether installation site (fixing point) has vehicle to pass through, it is impossible to which the real time vehicle tracking in investigative range, measurement is in fact
When the information such as position, speed.
In summary, the ETC sluice gates carry out car test examining system, in practice in the presence of it is inconvenient the problem of, it is therefore necessary to add
To improve.
Utility model content
What the purpose of this utility model was to provide a kind of ETC sluice gates carrys out car test examining system, easy for installation, is carried to ETC system
Position, angle and velocity information for carrying out car, it is easy to accurate tracking/identification of Car license recognition and ETC control terminals, improves communication effect
Rate and reliability.
To achieve the above object, using following technical scheme：
A kind of ETC sluice gates come car test examining system, including microwave radar detector, IF signal processing module, MCU moulds
Block, power module；The power module is respectively to microwave radar detector, IF signal processing module, MCU module power supply；Institute
State microwave radar detector and launch radar signal to target vehicle, a part for the radar signal is reflected simultaneously by target vehicle
Received by microwave radar detector；The signal that the microwave radar detector will reflect back into is mixed with former radar signal,
The mixed signal is transmitted to MCU module through IF signal processing module；The MCU module detects target carriage according to the mixed signal
Operation information, outside ETC control terminals obtain the operation information and adjust the beam direction of its communication antenna unit accordingly.
It is preferred that the microwave radar detector includes microwave oscillator, microstrip power divider, micro-strip frequency mixer, micro-strip hair
Penetrate antenna, Microstrip Receiving Antenna；The microstrip power divider is one-to-two microstrip power divider, and its input receives microwave oscillator
Microwave signal, and the microwave signal is divided into two-way, micro-strip transmitting antenna is given wherein exporting all the way, another way is through micro-strip frequency mixer
Export to Microstrip Receiving Antenna.
It is preferred that the microwave radar detector also includes the first wave filter, the second wave filter, the 3rd wave filter；It is described
First wave filter one end is electrically connected with through impedance matching network and microwave oscillator, the input electricity of the other end and microstrip power divider
Property connection；A microstrip power divider wherein output end is electrically connected with second wave filter one end, and another output end is through impedance
Distribution network is electrically connected with micro-strip frequency mixer one end；The second wave filter other end launches day through impedance matching network and micro-strip
Line is electrically connected with；Described 3rd wave filter one end is electrically connected with the micro-strip frequency mixer other end, and the other end is through impedance matching network
It is electrically connected with Microstrip Receiving Antenna.
It is preferred that the power module includes three-terminal voltage-stabilizing feed regulator isolator, model 78L05.
Using such scheme, the beneficial effects of the utility model are：
1) orientation, distance and the speed of vehicle in ETC tracks are measured in real time, are easy to Car license recognition, measurement result is accurate, makes
It is more efficient and reliable to obtain ETC control end communications；
2) manufacturing cost is low, installs and safeguards and be more convenient.
Brief description of the drawings
Fig. 1 is the schematic diagram that the utility model communicates wirelessly with ETC control terminals；
Fig. 2 is microwave radar detector circuit figure of the present utility model；
Fig. 3 is IF signal processing module circuit diagram of the present utility model；
Fig. 4 is power module circuitry figure of the present utility model；
Wherein, accompanying drawing identifier declaration：
1-microwave radar detector, 2-IF signal processing module,
3-MCU module, 4-power module,
5-ETC control terminals, 11-microwave oscillator,
12-microstrip power divider, 13-micro-strip frequency mixer,
14-micro-strip transmitting antenna, 15-Microstrip Receiving Antenna,
16-the first wave filter, the 17-the second wave filter,
18-the three wave filter.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Referring to figs. 1 to shown in 4, a kind of ETC sluice gates of the utility model offer carry out car test examining system, including microwave radar is visited
Survey device 1, IF signal processing module 2, MCU module 3, power module 4；The power module 4 gives microwave radar detector respectively
1st, IF signal processing module 2, MCU module 3 are powered；The microwave radar detector 1 launches radar signal to target vehicle, should
A part for radar signal is reflected and received by microwave radar detector 1 by target vehicle；The microwave radar detection
The signal that device 1 will reflect back into is mixed with former radar signal；The mixed signal is transmitted to MCU moulds through IF signal processing module 2
Block 3, the MCU module 3 detect the operation information of target vehicle according to the mixed signal, and outside ETC control terminals 5 obtain the fortune
Row information and the beam direction for adjusting its communication antenna unit accordingly.
Wherein, the microwave radar detector 1 includes microwave oscillator 11, microstrip power divider 12, micro-strip frequency mixer 13, micro-
Band transmitting antenna 14, Microstrip Receiving Antenna 15；The microstrip power divider 12 is one-to-two microstrip power divider, and its input receives micro-
The microwave signal of wave oscillator 11, and the microwave signal is divided into two-way, wherein export all the way to micro-strip transmitting antenna 14, it is another
Road is exported to Microstrip Receiving Antenna 15 through micro-strip frequency mixer 13.
The microwave radar detector 1 also includes the first wave filter 16, the second wave filter 17, the 3rd wave filter 18；It is described
The one end of first wave filter 16 is electrically connected with through impedance matching network and microwave oscillator 11, and the other end is defeated with microstrip power divider 12
Enter end to be electrically connected with；A microstrip power divider 12 wherein output end is electrically connected with the one end of the second wave filter 17, another output
End is electrically connected with through impedance matching network and the one end of micro-strip frequency mixer 13；The other end of second wave filter 17 is through impedance matching net
Network is electrically connected with micro-strip transmitting antenna 14；Described one end of 3rd wave filter 18 is electrically connected with the other end of micro-strip frequency mixer 13,
The other end is electrically connected with through impedance matching network and Microstrip Receiving Antenna 15.
The power module 4 includes three-terminal voltage-stabilizing feed regulator isolator, model 78L05.
Utility model works principle：
The utility model is reached come car testing goal using microwave radar technology scheme：Microwave radar detector 1 is operated in
ISM band (24.0~24.25GHz) outwards launches the microwave signal of FMCW features；Microwave radar detector 1 is sent out to target vehicle
Radar signal is penetrated, a part for the radar signal is reflected back microwave radar detector 1 by target vehicle；The signal being reflected back is micro-
The Microstrip Receiving Antenna 15 of ripple radar detedtor 1 is received and mixed inside it with former radar signal, mixed signal (intermediate frequency
Signal) include distance, the velocity characteristic of target.The intermediate-freuqncy signal is after IF signal processing module 2 is filtered, amplified
Into ADC (analog signal is converted to data signal) port of MCU module 3.Data signal after ADC is sampled is in MCU moulds
The inside of block 3 extracts the distance of target, velocity information by digital processing, and further computing is that can obtain the orientation of target vehicle
Information.
MCU module 3 determines target vehicle further according to the radar signal in the mixed signal and the time difference of reflected signal
Operation information, outside ETC control terminals 5 obtain the operation information by wireless telecommunications and adjust its communication antenna unit accordingly
Beam direction, carrying out effectively communication with target vehicle, (ETC control terminals 5 are according to orientation of the utility model to target vehicle, speed
The Detection location of the operation informations such as degree, so as to which communication control antenna element is pointedly communicated with target vehicle).
Microwave oscillator 11：
As shown in Fig. 2 the microwave oscillator 11 in microwave radar detector 1 is using K-band N-channel GaAS HJ-FET pipes
1b and LC micro-strip frequency-selective network 1a and impedance matching network TL1/TL2/TL3 etc. are formed so that microwave oscillator 11 is designing
In the case of power voltage supply, it is operated in ISM (24.0~24.25GHz) frequency range；First wave filter 16, the second wave filter the 17, the 3rd
Wave filter 18 is respectively as microwave oscillator 11, transmitting and the isolation and frequency-selecting of receiving channel.
Microstrip power divider 12 is one-to-two micro-strip Wilkinson power divider, for the microwave letter that microwave oscillator 11 is launched
Number it is divided into two-way on request；Microstrip antenna TX/RX is respectively micro-strip transmitting antenna 14 and Microstrip Receiving Antenna 15.Micro-strip frequency mixer
13 include blender and Doppler's wave detector, and effect is that local oscillation signal is mixed with the signal reflected, by Doppler's detection
Device output Doppler signal (IF).
TL4/TL6/TL7/TL8 in Fig. 2 is impedance matching network.
IF signal processing module 2：
As shown in figure 3, IFI and IFQ connects the intermediate-freuqncy signal output end of microwave radar detector 1,1/2VCC respectively in figure
Obtained by two electric resistance partial pressures, for providing voltage power supply point to amplifier, IF signal processing module 2 is in two passages
Frequency signal is subject to filter and amplification, so that MCU module 3 is handled.
Power module 4：
As shown in figure 4, power module 4 for the utility model provide needed for electric energy, the circuit includes filter capacitor and three ends
Voltage-stabilized power supply adjuster.
Preferred embodiment of the present utility model is these are only, is not limited to the utility model, it is all in this practicality
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (4)
1. a kind of ETC sluice gates carry out car test examining system, it is characterised in that including microwave radar detector, IF signal processing mould
Block, MCU module, power module；The power module is respectively to microwave radar detector, IF signal processing module, MCU module
Power supply；The microwave radar detector launches radar signal to target vehicle, and a part for the radar signal is anti-by target vehicle
It is emitted back towards and comes and received by microwave radar detector；The signal that the microwave radar detector will reflect back into enters with former radar signal
Row mixing, the mixed signal are transmitted to MCU module through IF signal processing module；The MCU module is examined according to the mixed signal
The operation information of target vehicle is surveyed, outside ETC control terminals obtain the operation information and adjust the ripple of its communication antenna unit accordingly
Shu Fangxiang.
2. ETC sluice gates according to claim 1 carry out car test examining system, it is characterised in that the microwave radar detector
Including microwave oscillator, microstrip power divider, micro-strip frequency mixer, micro-strip transmitting antenna, Microstrip Receiving Antenna；The microstrip power divider
For one-to-two microstrip power divider；The microstrip power divider is one-to-two microstrip power divider, and its input receives microwave oscillator
Microwave signal, and the microwave signal is divided into two-way, micro-strip transmitting antenna is given wherein exporting all the way, another way is through micro-strip frequency mixer
Export to Microstrip Receiving Antenna.
3. ETC sluice gates according to claim 2 carry out car test examining system, it is characterised in that the microwave radar detector
Also include the first wave filter, the second wave filter, the 3rd wave filter；Described first wave filter one end is through impedance matching network and microwave
Oscillator is electrically connected with, and the input of the other end and microstrip power divider is electrically connected with；A microstrip power divider wherein output end
It is electrically connected with second wave filter one end, another output end is electrically connected with through impedance matching network and micro-strip frequency mixer one end；Institute
The second wave filter other end is stated to be electrically connected with through impedance matching network and micro-strip transmitting antenna；Described 3rd wave filter one end with it is micro-
The band frequency mixer other end is electrically connected with, and the other end is electrically connected with through impedance matching network and Microstrip Receiving Antenna.
4. ETC sluice gates according to claim 1 carry out car test examining system, it is characterised in that the power module includes three
Hold voltage-stabilized power supply adjuster, model 78L05.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721068797.4U CN207164245U (en) | 2017-08-24 | 2017-08-24 | A kind of ETC sluice gates carry out car test examining system |
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|---|---|---|---|
| CN201721068797.4U CN207164245U (en) | 2017-08-24 | 2017-08-24 | A kind of ETC sluice gates carry out car test examining system |
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| CN207164245U true CN207164245U (en) | 2018-03-30 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633571A (en) * | 2018-12-18 | 2019-04-16 | 长沙莫之比智能科技有限公司 | A kind of 77GHz millimeter wave gate cracking protection radar signal processing device |
| CN110398737A (en) * | 2019-07-31 | 2019-11-01 | 惠州市德赛西威汽车电子股份有限公司 | A kind of the trailer-mounted radar detection system and its method of long-range detection |
| CN110796753A (en) * | 2019-11-01 | 2020-02-14 | 山东中创软件工程股份有限公司 | Road vehicle detection device and detection method |
| CN111275976A (en) * | 2018-12-04 | 2020-06-12 | 北京聚利科技有限公司 | Vehicle identification method, device, equipment and computer readable storage medium |
| CN111722197A (en) * | 2019-03-20 | 2020-09-29 | 上海高智科技发展有限公司 | Environment detection device, portable device, environment detection method, and storage medium |
| CN111951564A (en) * | 2020-07-31 | 2020-11-17 | 伟龙科技(广东)有限公司 | Method and system for collecting traffic flow information |
-
2017
- 2017-08-24 CN CN201721068797.4U patent/CN207164245U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111275976A (en) * | 2018-12-04 | 2020-06-12 | 北京聚利科技有限公司 | Vehicle identification method, device, equipment and computer readable storage medium |
| CN109633571A (en) * | 2018-12-18 | 2019-04-16 | 长沙莫之比智能科技有限公司 | A kind of 77GHz millimeter wave gate cracking protection radar signal processing device |
| CN109633571B (en) * | 2018-12-18 | 2024-04-26 | 长沙莫之比智能科技有限公司 | 77GHz millimeter wave barrier gate smash-proof radar signal processing device |
| CN111722197A (en) * | 2019-03-20 | 2020-09-29 | 上海高智科技发展有限公司 | Environment detection device, portable device, environment detection method, and storage medium |
| CN110398737A (en) * | 2019-07-31 | 2019-11-01 | 惠州市德赛西威汽车电子股份有限公司 | A kind of the trailer-mounted radar detection system and its method of long-range detection |
| CN110796753A (en) * | 2019-11-01 | 2020-02-14 | 山东中创软件工程股份有限公司 | Road vehicle detection device and detection method |
| CN111951564A (en) * | 2020-07-31 | 2020-11-17 | 伟龙科技(广东)有限公司 | Method and system for collecting traffic flow information |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190528 Address after: 518000 Xuexiang Community, Bantian Street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Yusheng Technology Co., Ltd. Address before: 518000 Bantian Street, Longgang District, Shenzhen City, Guangdong Province, 1713, 1714, Block A, 3 Chengshi Famous Gardens Patentee before: Shenzhen Quan song microwave radar sensor technology Co., Ltd. |