CN209281618U - A kind of Vehicle Detection device based on millimetre-wave radar and video - Google Patents
A kind of Vehicle Detection device based on millimetre-wave radar and video Download PDFInfo
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- CN209281618U CN209281618U CN201822269532.1U CN201822269532U CN209281618U CN 209281618 U CN209281618 U CN 209281618U CN 201822269532 U CN201822269532 U CN 201822269532U CN 209281618 U CN209281618 U CN 209281618U
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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
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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
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- Radar Systems Or Details Thereof (AREA)
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Abstract
The utility model discloses a kind of Vehicle Detection device based on millimetre-wave radar and video, belongs to the data acquisition and processing (DAP) technical field in intelligent transportation.The utility model includes millimetre-wave radar sensor, video sensor, master controller, storage device and communication device；Two sensors are located in a headend equipment；Collected road vehicles information is connected master controller by controller local area network's interface by millimetre-wave radar sensor, and collected pavement image is connected master controller by image interface by video sensor；Master controller passes through network interface and RS485 interface to system platform receiving and transmitting signal.Two perception front ends are placed in same equipment by the utility model, are alleviated the difficulty of installation and debugging, are reduced maintenance cost.Two sensors pass through controller local area network's interface and image interface respectively and master controller transmits signal, ensure that the stability and reliability of signal, accelerate the response time of system, improve detection accuracy.
Description
Technical field
The utility model belongs to the data acquisition and processing (DAP) technical field in intelligent transportation, and in particular to one kind is based on millimeter
The traffic detection system of wave radar and video.
Background technique
Video sensor is all used in existing traffic detection system mostly, and single video detection mode is in detection effect
Upper accuracy is not high, and the delay of image procossing is big, and its precision is easy to be influenced by environment such as rain, mists.In later system
The sensors such as other types of sensor, such as millimetre-wave radar, earth magnetism, laser radar are gradually added into, different sensors are utilized
Advantage, carry out Fusion, substantially increase the detection performance of system.Millimetre-wave radar sensor can be accomplished
To the position and speed information of target, data processing can reach 20 times per second real-time detection, and environmental suitability is strong, can it is round-the-clock,
Round-the-clock work, drawback is can not to visualize.And video sensor is capable of handling image information, if analyzing image
It calculates, needs to take a long time by transcoding, can not accomplish real-time response, and environmental suitability is not high.
Using the advantage of both sensors, can using millimetre-wave radar sensor and video sensor as detection front end into
Row Data Fusion.In current system, millimetre-wave radar sensor and video sensor are due to its installation site difference, letter
It needs for the coordinate system of two kinds of sensors to be associated when breath fusion, and the relative position of two sensor coordinates associations and they
It is related, if one of sensor has movement slightly, need associated coordinates again.Since two sensors pass through in use
Often will receive shake, installation site has deviation after a period of time, and distance and angle is caused to be not fixed, need periodically again into
Row coordinate matching, so installation and debugging difficulty is big, it is often necessary to safeguard.
Summary of the invention
The utility model aim is: for prior art construction installation and debugging complexity and ineffective problem, mentioning
For a kind of Vehicle Detection device based on millimetre-wave radar and video that two kinds of sensors are located in a detection device.
Specifically, the utility model adopts the following technical solutions realization: including millimetre-wave radar sensor, video
Sensor, master controller, storage device and communication device；The millimetre-wave radar sensor and the video sensor are located at one
In a headend equipment；Collected road vehicles information is passed through controller local area network's interface by the millimetre-wave radar sensor
The master controller is connected, collected pavement image is connected master controller by image interface by the video sensor；Institute
Stating master controller includes ARM microprocessor and embedded neural network processor；The storage device connects the master controller,
The storage device includes built-in multimedia storage device and SD card, and the built-in multimedia storage device is for storing behaviour
Make system, the SD card is for storing traffic flow data library and traffic event information；The master controller by communication device to
System platform receiving and transmitting signal, the communication device include network interface and RS485 interface.
Furthermore: controller local area network's interface connects the master controller, and terminal gives the millimeter wave thunder
It powers up to sensor, while the signal of the millimetre-wave radar sensor is connected to the transmitting-receiving of controller local area network by terminal
The signal of millimetre-wave radar sensor is converted into what the master controller can identify by the transceiver of device, the device local area network processed
Signal is simultaneously transferred to master controller.
Furthermore: the signal of the millimetre-wave radar sensor is connected to the receipts of controller local area network by terminal
Before sending out device, Transient Suppression Diode and common mode inductance are first passed through as controller local area network's signal, transient state inhibition protection and filter are provided
Except common mode interference.
Furthermore: the power end connection of controller local area network's transceiver two capacitors in parallel.
Furthermore: the transceiver of the controller local area network uses TD321DCANT chip.
Furthermore: the transceiver of the controller local area network uses TD301DCAN chip.
Furthermore: described image interface uses mobile industry processor interface.
Furthermore: USB interface can be used in described image interface.
Furthermore: the video sensor connects master controller by USB interface, and USB inserting terminal provides data
And power supply, Transient Suppression Diode array in parallel in the bus that the USB inserting terminal is drawn, then series resistance, finally connects
Connect master controller transmission signal.
The beneficial effects of the utility model are as follows: the utility model by millimetre-wave radar sensor and video sensor this two
A perception front end is placed in same equipment, is alleviated the difficulty of installation and debugging, is reduced maintenance cost.Thunder millimetre-wave radar sensing
Device and video sensor pass through controller local area network's interface and image interface respectively, transmit signal with master controller, ensure that
The stability and reliability of signal, alleviate the calculation amount of system, accelerate the response time of system, improve detection accuracy.
Detailed description of the invention
Fig. 1 is Tthe utility model system structural schematic diagram.
Fig. 2 is the utility model millimetre-wave radar sensor and Host Controler Interface schematic diagram.
Fig. 3 is the utility model video sensor and Host Controler Interface schematic diagram.
Specific embodiment
The utility model is described in further detail below with reference to embodiment and referring to attached drawing.
Embodiment 1:
One embodiment of the utility model, it is as shown in Figure 1, Figure 2 and Figure 3, a kind of based on millimetre-wave radar and video
Vehicle Detection device includes: millimetre-wave radar sensor, video sensor, master controller, storage device and communication device.Millimeter
Two sensors of wave radar sensor and video sensor are located in a front-end detection equipment, reduce the work of installation and debugging
Make.
The information of collected road vehicles is passed through controller local area network's interface (abbreviation by millimetre-wave radar sensor
CAN interface) connection master controller.As shown in Fig. 2, No. 1 pin and No. 2 pins of CON1 terminal are supplied to millimetre-wave radar sensor
Electricity, while the CAN signal of millimetre-wave radar sensor is connected to control general ability by No. 3 pins and No. 4 pins of CON1 terminal
On the transceiver U3 of domain network (CAN).By the transceiver U3 of controller local area network (CAN) by millimetre-wave radar sensor
CAN signal (i.e. differential signal) is converted into the signal that master controller can identify.R5 is the build-out resistor being connected in parallel in bus, transient state
Inhibition (TVS) diode ESD1, transient state inhibition (TVS) diode D5, transient state inhibition (TVS) diode D6 and common mode inductance L3 are
Controller local area network's (CAN) signal provides transient state and inhibits (TVS) protection and filtering common mode interference.Capacitor C16 and capacitor C17 are simultaneously
No. 1 pin of connection connection controller local area network's (CAN) transceiver U3, reduces controller local area network as power filtering capacitor
(CAN) the input ripple of transceiver U3 improves power supply signal quality.Turn by the transceiver U3 of controller local area network (CAN)
It changes the signal that master controller can identify into, and is drawn by No. 3 pins and No. 4 of the transceiver U3 of controller local area network (CAN)
Foot connect receiving and transmitting signal with master controller.The transceiver U3 of controller local area network (CAN) can be used TD321DCAN chip or
TD301DCAN chip, be able to achieve it is above-mentioned differential signal is converted into the signal that master controller can identify, be not limited to above-mentioned
Chip.
Collected pavement image is connected master controller by image interface by video sensor.Image interface can be used
USB interface or mobile industry processor interface (abbreviation MIPI interface).The use of video sensor image interface, on being able to achieve
It states pavement image and is sent to master controller, be not limited to above-mentioned interface.As shown in figure 3, video sensor is connected to by USB
The USB interface of master controller, the port inserting terminal CZ2 USB provide data and power supply.No. 2 pins of inserting terminal CZ2 and No. 3
In parallel transient state inhibits (TVS) diode array D5 in the bus that pin is drawn, then series resistance R49 and resistance R50 respectively, most
Connection master controller transmits signal afterwards.No. 2 pins of inserting terminal CZ2 and No. 4 pins connect power supply power supply, inserting terminal CZ2
No. 5, No. 6, No. 7 and No. 8 pins ground connection.
Master controller includes ARM microprocessor and embedded neural network processor (NPU).Embedded Processing with Neural Network
Device (NPU) is responsible for the processing of image data, identifies the type of target, and the collected target information of millimetre-wave radar is superimposed upon
In video image.ARM microprocessor is responsible for counting the information of all traffic flows and traffic events identification.Master controller is to real-time
The data information fusion detected from millimetre-wave radar and video sensor received, the complete information of same target is defeated
Out to system platform.
Storage device connects master controller, and storage device includes built-in multimedia storage device (EMMC) and SD card.
EMMC is used for storage program area.SD card is restored for storing traffic flow data library and traffic event information in net drop again
The data to go offline before are transmitted through the network to backstage afterwards.
Communication device includes network (ETH) interface and RS485 interface, and network (ETH) interface uses the network of 100/1000M
Interface, for transmitting telecommunication flow information, traffic event information, video image information to system platform.RS485 interface is for docking
Bayonet camera and crossing traffic control semaphore.
Although the utility model has been described by way of example and in terms of the preferred embodiments, embodiment is not for limiting the utility model
's.In the spirit and scope for not departing from the utility model, it is practical new to also belong to this for any equivalent change or retouch done
The protection scope of type.Therefore the protection scope of the utility model should be mark with the content that claims hereof is defined
It is quasi-.
Claims (9)
1. a kind of Vehicle Detection device based on millimetre-wave radar and video, which is characterized in that including millimetre-wave radar sensor,
Video sensor, master controller, storage device and communication device；The millimetre-wave radar sensor and the video sensor position
In in a headend equipment；Collected road vehicles information is passed through controller local area network by the millimetre-wave radar sensor
Interface connects the master controller, and collected pavement image is connected main control by image interface by the video sensor
Device；The master controller includes ARM microprocessor and embedded neural network processor；The storage device connects the master control
Device processed, the storage device include built-in multimedia storage device and SD card；The master controller is by communication device to being
System platform receiving and transmitting signal, the communication device includes network interface and RS485 interface.
2. a kind of Vehicle Detection device based on millimetre-wave radar and video according to claim 1, it is characterised in that: institute
It states controller local area network's interface and connects the master controller, terminal is powered to the millimetre-wave radar sensor, while described
The signal of millimetre-wave radar sensor is connected to the transceiver of controller local area network by terminal, the device local area network processed
The signal of millimetre-wave radar sensor is converted into signal that the master controller can identify and is transferred to master controller by transceiver.
3. a kind of Vehicle Detection device based on millimetre-wave radar and video according to claim 2, it is characterised in that: institute
State millimetre-wave radar sensor signal the transceiver of controller local area network is connected to by terminal before, first pass through transient state inhibition
Diode and common mode inductance.
4. a kind of Vehicle Detection device based on millimetre-wave radar and video according to claim 2, it is characterised in that: institute
State the power end connection of controller local area network's transceiver two capacitors in parallel.
5. a kind of Vehicle Detection device based on millimetre-wave radar and video according to claim 2, it is characterised in that: institute
The transceiver of controller local area network is stated using TD321DCANT chip.
6. a kind of Vehicle Detection device based on millimetre-wave radar and video according to claim 2, it is characterised in that: institute
The transceiver of controller local area network is stated using TD301DCAN chip.
7. a kind of Vehicle Detection device based on millimetre-wave radar and video according to claim 1, it is characterised in that: institute
Image interface is stated using mobile industry processor interface.
8. a kind of Vehicle Detection device based on millimetre-wave radar and video according to claim 1, it is characterised in that: institute
Stating image interface can be used USB interface.
9. a kind of Vehicle Detection device based on millimetre-wave radar and video according to claim 8, it is characterised in that: institute
It states video sensor and master controller is connected by USB interface, USB inserting terminal provides data and power supply, the USB inserting terminal
Transient Suppression Diode array in parallel in the bus of extraction, then series resistance, finally connects master controller and transmits signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822269532.1U CN209281618U (en) | 2018-12-29 | 2018-12-29 | A kind of Vehicle Detection device based on millimetre-wave radar and video |
| PCT/CN2019/113967 WO2020134513A1 (en) | 2018-12-29 | 2019-10-29 | Traffic detection apparatus based on millimeter wave radar and video |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822269532.1U CN209281618U (en) | 2018-12-29 | 2018-12-29 | A kind of Vehicle Detection device based on millimetre-wave radar and video |
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| CN209281618U true CN209281618U (en) | 2019-08-20 |
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| CN201822269532.1U Active CN209281618U (en) | 2018-12-29 | 2018-12-29 | A kind of Vehicle Detection device based on millimetre-wave radar and video |
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| WO (1) | WO2020134513A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110796868A (en) * | 2019-12-02 | 2020-02-14 | 江苏中路工程技术研究院有限公司 | Video and microwave integrated traffic incident monitoring system and method |
| WO2020134513A1 (en) * | 2018-12-29 | 2020-07-02 | 南京慧尔视智能科技有限公司 | Traffic detection apparatus based on millimeter wave radar and video |
| CN112991738A (en) * | 2021-03-19 | 2021-06-18 | 迈锐数据(无锡)有限公司 | Integrated traffic detection system based on radar, video and geomagnetism |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466114A (en) * | 2020-11-19 | 2021-03-09 | 南京代威科技有限公司 | Traffic monitoring system and method based on millimeter wave technology |
| CN112820120B (en) * | 2020-12-30 | 2022-03-01 | 杭州趣链科技有限公司 | Multi-party traffic flow space-time cross validation method based on alliance chain |
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| CN101527082B (en) * | 2008-03-07 | 2012-09-19 | 上海宝康电子控制工程有限公司 | System and method for acquiring traffic road conditions |
| ES2765012T3 (en) * | 2010-08-23 | 2020-06-05 | Status Tech Pty Ltd | A vehicle security information and alert system |
| CN102303605A (en) * | 2011-06-30 | 2012-01-04 | 中国汽车技术研究中心 | Multi-sensor information fusion-based collision and departure pre-warning device and method |
| CN105015411B (en) * | 2015-07-03 | 2018-04-24 | 河南工业技术研究院 | A kind of automobile microwave radar anti-collision early warning method and system based on video fusion |
| CN205121895U (en) * | 2015-10-21 | 2016-03-30 | 辽宁天久信息科技产业有限公司 | High -speed ring road entry safety warning system |
| CN106710240B (en) * | 2017-03-02 | 2019-09-27 | 公安部交通管理科学研究所 | The passing vehicle for merging multiple target radar and video information tracks speed-measuring method |
| CN106809160B (en) * | 2017-03-16 | 2018-08-10 | 广东轻工职业技术学院 | A kind of intersection driving assistance method and system |
| CN108847026A (en) * | 2018-05-31 | 2018-11-20 | 安徽四创电子股份有限公司 | A method of it is converted based on matrix coordinate and realizes that data investigation is shown |
| CN209281618U (en) * | 2018-12-29 | 2019-08-20 | 南京慧尔视智能科技有限公司 | A kind of Vehicle Detection device based on millimetre-wave radar and video |
-
2018
- 2018-12-29 CN CN201822269532.1U patent/CN209281618U/en active Active
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2019
- 2019-10-29 WO PCT/CN2019/113967 patent/WO2020134513A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134513A1 (en) * | 2018-12-29 | 2020-07-02 | 南京慧尔视智能科技有限公司 | Traffic detection apparatus based on millimeter wave radar and video |
| CN110796868A (en) * | 2019-12-02 | 2020-02-14 | 江苏中路工程技术研究院有限公司 | Video and microwave integrated traffic incident monitoring system and method |
| CN112991738A (en) * | 2021-03-19 | 2021-06-18 | 迈锐数据(无锡)有限公司 | Integrated traffic detection system based on radar, video and geomagnetism |
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| WO2020134513A1 (en) | 2020-07-02 |
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