CN106128106A - Traffic detection system - Google Patents
Traffic detection system Download PDFInfo
- Publication number
- CN106128106A CN106128106A CN201610682686.6A CN201610682686A CN106128106A CN 106128106 A CN106128106 A CN 106128106A CN 201610682686 A CN201610682686 A CN 201610682686A CN 106128106 A CN106128106 A CN 106128106A
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- China
- Prior art keywords
- hot spot
- detection system
- straight line
- information
- traffic detection
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Classifications
-
- 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
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
-
- 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
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
-
- 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
- G08G1/056—Detecting movement of traffic to be counted or controlled with provision for distinguishing direction of travel
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Traffic Control Systems (AREA)
Abstract
The present invention provides a kind of traffic detection system, including: road rack, vertically it is inserted in the fixing bar of trackside, the signal transmitting and receiving device being fixed on fixing bar, it is arranged at the communication device in signal transmitting and receiving device, it is arranged at the data processing equipment in road rack, and is arranged at the data transmission device in road rack；Signal transmitting and receiving device, for by launching the information of vehicles that light beam gathers on track；Communication device, for being transmitted the information of vehicles of signal transmitting and receiving device；Data processing equipment, is used for receiving and storing information of vehicles, and obtains the transport information in track according to information of vehicles；Data transmission device, for transmitting the transport information of data processing equipment to remote control terminal.The traffic detection system that the present invention provides can obtain required transport information under ensureing the damage premise not causing track itself, and by obtained transport information, system can be carried out remotely monitor and control, and practicality is high.
Description
Technical field
The present invention relates to a kind of traffic detection system.
Background technology
Along with developing rapidly of national economy, the communication of China also achieves huge progress, and highway mileage is not
Disconnected increase.By the end of the year 2014, highway in China total kilometrage with more than more than 4,240,000 kilometers, the wherein total kilometrage that is open to traffic of highway
Reach 11.195 ten thousand kilometers.Accurately, in time, all sidedly gather traffic conditions information have great importance, it is possible to for planning of highways,
Construction, management, maintenance, Public Traveling, emergency disposal etc. provide important information support.
At present, the mode that traffic detection system is conventional is to investigate track by burying wagon flow counting assembly below track underground
On information of vehicle flowrate, but this traffic detection system is required for when installing and keep in repair destroying road surface, additionally, this
Vehicle flowrate can only be investigated by the traffic detection system burying wagon flow counting assembly below track underground, and practicality is the highest.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of traffic detection system, is arranged on more than track, and can be same
Time obtain the vehicle flowrate on track, speed and vehicle information, practicality is high.
For solving above-mentioned technical problem, the present invention provides a kind of traffic detection system, including, road rack, vertically plant
In the fixing bar of trackside, the signal transmitting and receiving device being fixed on fixing bar, it is arranged in signal transmitting and receiving device
Communication device, be arranged at the data processing equipment in road rack, and be arranged at the data transmission device in road rack；
Signal transmitting and receiving device, for by launching the information of vehicles that light beam gathers on track；Communication device, for believing
The information of vehicles of number transmitting and receiving device is transmitted；Data processing equipment, is used for receiving and storing information of vehicles, and according to
Information of vehicles obtains the transport information in track；Data transmission device, for transmitting the transport information of data processing equipment to far
Process control end.
Further, transport information includes vehicle flowrate, speed, vehicle, vehicle commander, overall width, overall height, vehicle's contour, traveling side
To, traveling lane, pass through the time.
Further, fixing bar is portal frame or trackside column or L-type support.
Further, communication device by cable or WIFI or 2G 3G 4G 5G network described signal launched and receives
The information of vehicles of device is transmitted；Data transmission device by the Internet or 2G 3G 4G 5G network by data processing equipment
Transport information transmit to remote control terminal.
Further, light beam is infrared beam or ultraviolet light beam or laser beam or electromagnetic beam or mechanical beam.
Further, light beam projects a row or the hot spot of two rows on track, and often row has at least two hot spots, hot spot
For circular light spot or oval hot spot, and often each hot spot in row passes through diameter or two end points of major axis with adjacent hot spot
Connect.
Further, hot spot has a row, and all hot spots in this row form the first straight line at diameter or long axis direction, and the
One straight line acutangulates with direction of traffic.
Further, hot spot has two rows, respectively first row and second row, and all hot spots of first row are at diameter or major axis
Direction forms the second straight line, and all hot spots of second row form the 3rd straight line at diameter or long axis direction, the second straight line parallel in
3rd straight line, and the second straight line and the 3rd straight line at a right angle with direction of traffic.
Further, the distance range of the second straight line and the 3rd straight line is 1m to 6m.
Further, diameter or the major axis size of each hot spot is 0.5m to 2m.
The traffic detection system that the present invention provides, signal transmitting and receiving device is fixedly installed on fixing bar, and communication fills
Installing and be placed in signal transmitting and receiving device, data processing equipment and data transmission device are fixedly installed in road rack,
All of device is all provided in the top in track, convenient maintenance and installation, and wherein, fixing bar is vertically inserted in trackside, the most just
It is to say also track to be caused damage when fixing bar is installed or keeped in repair, the traveling of vehicle on track will not be made
Become any impact.
Additionally, the traffic detection system that the present invention provides, by launching the information of vehicles that light beam gathers on track, with
Time be sent in data processing equipment process by communication device by the information of vehicles collected, thus obtain the friendship of needs
Communicate breath, then is sent the transport information obtained to remote control terminal by data transmission device, so so that work
The traffic detection system that personnel can be achieved with providing the present invention at far-end carries out remotely monitor and control.
It is to say, the traffic detection system that the present invention provides can be under ensureing the damage premise not causing track itself
Transport information needed for acquisition, and by obtained transport information, system can be carried out remotely monitor and control, practicality is high.
Accompanying drawing explanation
Fig. 1 is a kind of traffic detection system structural representation that the embodiment of the present invention provides；
Fig. 2 is a kind of traffic detection system signal transmitting and receiving device schematic layout pattern that the embodiment of the present invention provides；
Fig. 3 is a kind of traffic detection system signal transmitting and receiving device schematic layout pattern that the embodiment of the present invention provides；
Fig. 4 is a kind of traffic detection system signal transmitting and receiving device schematic layout pattern that the embodiment of the present invention provides；
Vehicle speed measurement demonstration graph when Fig. 5 is the vehicle traveling in a kind of traffic detection system that the embodiment of the present invention provides.
Detailed description of the invention
The present invention is further illustrated below by specific embodiment, it should be understood, however, that, these embodiments are only
It is used for specifically describing in more detail, and is not to be construed as limiting in any form the present invention.
In conjunction with Fig. 1, the traffic detection system that the present embodiment provides, including, road rack 6, vertically it is inserted in consolidating of trackside
Fixed pole 5, is fixed on the signal transmitting and receiving device 1 on fixing bar 5, is arranged at the communication in signal transmitting and receiving device 1
Device 2, the data processing equipment 3 being arranged in road rack 6, and the data transmission device 4 being arranged in road rack 6；
Signal transmitting and receiving device 1, for gathering the information of vehicles on track 7 by launching light beam；Communication device 2, is used for
The information of vehicles of signal transmitting and receiving device 1 is transmitted；Data processing equipment 3, is used for receiving and storing information of vehicles,
And the transport information in track 7 is obtained according to information of vehicles；Data transmission device 4, for by the transport information of data processing equipment 3
Transmission is to remote control terminal.
The traffic detection system that the present embodiment provides, signal transmitting and receiving device 1 is fixedly installed on fixing bar 5, logical
News device 2 is arranged in signal transmitting and receiving device 1, and data processing equipment 3 and data transmission device 4 are fixedly installed on road
In rack 6, all of device is all provided in the top in track 7, convenient maintenance and installation, and wherein, fixing bar 5 is vertically inserted in
Trackside, say, that also track 7 will not be caused damage when fixing bar 5 is installed or keeped in repair, to vehicle on track 7
Traveling do not result in any impact.
Additionally, the traffic detection system that the present embodiment provides, the vehicle gathering on track 7 by launching light beam is believed
Breath, is sent in data processing equipment 3 process by communication device 2 by the information of vehicles collected simultaneously, thus obtains
The transport information needed, then by data transmission device 4, the transport information obtained is sent to remote control terminal, the most permissible
The traffic detection system making staff can be achieved with providing the present embodiment at far-end carries out remotely monitor and control.
It is to say, the traffic detection system that the present embodiment provides can be before the damage ensureing not cause track 7 itself
Put the transport information needed for acquisition, and by obtained transport information, system can be carried out remotely monitor and control, practical
Property high.
Preferably, at least, track 7.The present embodiment can carry out traffic study to multiple tracks 7 simultaneously.Namely
Saying, the traffic detection system of the present embodiment is not to carry out traffic study only for a certain bar track 7, but can be simultaneously to many
Bar track 7 carries out traffic study, and obtains the traveling lane information of the vehicle of each the system by the present embodiment simultaneously.
Preferably, fixing bar 5 is portal frame or trackside column or L-type support.When fixing bar 5 is portal frame, signal is sent out
Penetrate and receive device 1 and be fixed on the centre of portal frame, namely such as Fig. 1 or as shown in Figure 3, signal transmitting and receiving device 1 is solid
It is scheduled in the middle of road.When fixing bar 5 is trackside column or L-type support, as shown in figures 2 or 4, signal is launched and receives dress
Put 1 and be fixed on trackside side.
Preferably, communication device 2 by cable or WIFI or 2G 3G 4G 5G network described signal launched and receives dress
Put the information of vehicles of 1 to be transmitted；Data transmission device 4 by the Internet or 2G 3G 4G 5G network by data processing equipment 3
Transport information transmit to remote control terminal.
Preferably, light beam is infrared beam or ultraviolet light beam or laser beam or electromagnetic beam or mechanical beam.
In the present embodiment, the best results when light beam is infrared beam, say, that signal transmitting and receiving device 1 is red
More preferably effect can be shown when outer light emission and receptor 9.Because infrared light is at anti-interference, cost, volume, accuracy
Aspect has comprehensive advantage.It should be noted that the light beam of the present embodiment is not limited only to use infrared light, it is also possible to use it
His light, such as, ultraviolet light, laser, electromagnetic wave (such as, microwave), mechanical wave (such as, ultrasound wave) etc., the present embodiment does not do to be had
Body limits, and can select according to actual needs.
It is further preferred that as shown in Figures 1 to 4, signal transmitting and receiving device 1 can include one or two infrared
Light emission and receptor 9, and each infrared light emission and receptor 9 are by launching light beam shape hot spot in a row on track 7
8。
It is further preferred that light beam projects on track 7 hot spot 8 of a row or two rows, often row has at least two light
Speckle 8, hot spot is circular light spot or oval hot spot, and often each hot spot 8 in row passes through diameter or major axis with adjacent hot spot 8
Two end points connect.Preferably, diameter or the major axis size of each hot spot 8 is 0.5m to 2m.It is to say, on track 7
The quantity of hot spot is relevant with spot size and track 7 width.Furthermore, it is necessary to explanation, often each hot spot 8 in row is with adjacent
Hot spot 8 connected by two end points of diameter or major axis, say, that often all hot spots on row are at diameter or long axis direction
It it is a straight line.
Specifically, when hot spot 8 has a row, now, as shown in the figures 1 and 2, all hot spots 8 in this row at diameter or
Long axis direction forms the first straight line, and the first straight line acutangulates with direction of traffic.First straight line and direction of traffic are set to sharp
The purpose at angle is, it is possible to use the distance between each two hot spot immobilizes this characteristic, calculates speed.
More specifically, as described in Figure 5, it is assumed that there is four hot spots 8, the respectively first hot spot, the second hot spot, the 3rd light
Speckle and the 4th hot spot, and the spacing of the lower limb of the lower limb of the 3rd hot spot and the second hot spot is s1, the second hot spot following
Distance between the lower limb of edge and the first hot spot is s2.When the vehicle is moving in a forward direction, this vehicle can sequentially enter the 4th hot spot,
3rd hot spot, the second hot spot, the first hot spot.Vehicle entrance the 3rd hot spot, the second hot spot, the moment of the first hot spot is made to be respectively
T1, t2, t3, then can calculate two instantaneous velocitys of vehicle:
V1=s1/ (t2-t1) (1)
V2=s2/ (t3-t2) (2)
The like, when the diameter of hot spot or major axis more hour, vehicle will be through the most hot spots when travelling, then when
Through n hot spot, n-1 instantaneous velocity just can be calculated.Preferably, the computational methods of the car speed of the present embodiment are will
Multiple instantaneous velocitys are added again divided by total hot spot number of process in vehicle travel process, and its computing formula is:
V=(v1+v2++vn)/n (3)
Specifically, when hot spot 8 has two rows, respectively first row and second row, all hot spots 8 of first row are in major axis side
To forming the second straight line, all hot spots 8 of second row form the 3rd straight line at diameter or long axis direction, and the second straight line parallel is in the
Three straight lines, now, as shown in figure 3 or 4, the second straight line and the 3rd straight line are at a right angle with direction of traffic.Now, why by
Two straight lines and the 3rd straight line are set to right angle with direction of traffic, and the distance being because between the second straight line and the 3rd straight line is fixing
, it is assumed that this distance is s, then when vehicle in the ti moment by first row hot spot, and when the t2 moment passes through second row hot spot,
The speed of this vehicle can directly be obtained by equation below:
V=s/ (t2 t1) (4)
Preferably, the distance range of the second straight line and the 3rd straight line is 1m to 6m.It should be noted that the second straight line and
The distance of three straight lines can arbitrarily be arranged, and when this distance the most excessive is arranged in the range of 1m to 6m, it is possible to obtain better effects, is surveyed
The speed precision of amount is optimal.
Preferably, the present embodiment passes through the sequencing of multiple hot spots 8 according to vehicle, it is possible to obtain the traveling side of vehicle
To.
Preferably, the present embodiment calculates the profile of vehicle according to the principle of reflection of light and the permanent principle of light velocity.Enter one
Step preferably, after the present embodiment obtains the profile of vehicle, can confirm the vehicle of vehicle according to vehicle standard both domestic and external.
Specifically, the present embodiment calculates the method for vehicle's contour is that signal transmitting and receiving device 1 is sent out to fixing direction
Irradiating light beam, and receive the optical signal being reflected back, owing to the light velocity is constant, it is reflected back according to time and the reception of transmitting light beam
The time difference of optical signal, can calculate the distance of vehicle and signal transmitting and receiving device 1, and the computing formula of this distance is:
L=(T2-T1) * c (5)
In formula (5), c is the light velocity, and T2 is the moment receiving and being reflected back light beam, and T1 is the beam emissions moment.
Vehicle ground vehicle commander, overall width and overall height is obtained by the distance of each point on vehicle with signal transmitting and receiving device 1
Information, and quickly depict vehicle's contour.The present embodiment further according to the vehicle's contour formed, and vehicle and vehicle's contour it
Between corresponding relation, just can determine whether out the vehicle of vehicle, and meanwhile complete wagon flow statistics of variables.
Preferably, can according to the speed of vehicle, time, vehicle information, calculate the time occupancy of vehicle, time headway,
The data such as space headway.
Although present invention has been a certain degree of description, it will be apparent that, without departing from the spirit and scope of the present invention
Under the conditions of, the suitable change of each condition can be carried out.It is appreciated that and the invention is not restricted to described embodiment, and be attributed to right
The scope required, it includes the equivalent of described each factor.
Claims (10)
1. a traffic detection system, including road rack, it is characterised in that also include: be vertically inserted in the fixing bar of trackside,
It is fixed on the signal transmitting and receiving device on described fixing bar, the communication dress being arranged in described signal transmitting and receiving device
Put, be arranged at the data processing equipment in described road rack, and be arranged at the data transmission device in described road rack；
Described signal transmitting and receiving device, for by launching the information of vehicles that light beam gathers on track；
Described communication device, for being transmitted the described information of vehicles of described signal transmitting and receiving device；
Described data processing equipment, is used for receiving and storing described information of vehicles, and obtains described car according to described information of vehicles
The transport information in road；
Described data transmission device, for transmitting the described transport information of described data processing equipment to remote control terminal.
Traffic detection system the most according to claim 1, it is characterised in that described transport information include vehicle flowrate, speed,
Vehicle, vehicle commander, overall width, overall height, vehicle's contour, travel direction, traveling lane, pass through the time.
Traffic detection system the most according to claim 1, it is characterised in that described fixing bar is portal frame or trackside column
Or L-type support.
Traffic detection system the most according to claim 1, it is characterised in that described communication device by cable or WIFI or
2G 3G 4G 5G network the information of vehicles of described signal transmitting and receiving device is transmitted；
Described data transmission device by the Internet or 2G 3G 4G 5G network the described traffic of described data processing equipment is believed
Breath transmission is to remote control terminal.
Traffic detection system the most according to claim 1, it is characterised in that described light beam is infrared beam or ultraviolet light beam
Or laser beam or electromagnetic beam or mechanical beam.
Traffic detection system the most according to claim 1, it is characterised in that described light beam projects on described track one
Row or the hot spot of two rows, often row has at least two described hot spots, and described hot spot is circular light spot or oval hot spot, and often arranges
In each described hot spot and adjacent hot spot connected by two end points of diameter or major axis.
Traffic detection system the most according to claim 6, it is characterised in that described hot spot has a row, owning in this row
Described hot spot forms the first straight line at diameter or long axis direction, and described first straight line acutangulates with direction of traffic.
Traffic detection system the most according to claim 6, it is characterised in that described hot spot has two rows, respectively first row
And second row, all described hot spot of described first row forms the second straight line at diameter or long axis direction, the institute of described second row
Having described hot spot to form the 3rd straight line at diameter or long axis direction, described second straight line parallel is in described 3rd straight line and described
Second straight line and described 3rd straight line are at a right angle with direction of traffic.
Traffic detection system the most according to claim 8, it is characterised in that described second straight line and described 3rd straight line
Distance range is 1m to 6m.
10. according to the traffic detection system according to any one of claim 6 to 9, it is characterised in that described each hot spot straight
Footpath or major axis size are 0.5m to 2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610682686.6A CN106128106A (en) | 2016-08-17 | 2016-08-17 | Traffic detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610682686.6A CN106128106A (en) | 2016-08-17 | 2016-08-17 | Traffic detection system |
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| CN106128106A true CN106128106A (en) | 2016-11-16 |
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ID=57280268
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| CN201610682686.6A Pending CN106128106A (en) | 2016-08-17 | 2016-08-17 | Traffic detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507414A (en) * | 2017-07-05 | 2017-12-22 | 湖北鑫美企业发展股份有限公司 | A kind of crossroad access flow-monitoring device |
| CN107945538A (en) * | 2017-04-06 | 2018-04-20 | 青岛翰兴知识产权运营管理有限公司 | A kind of intelligent traffic signal control method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08122060A (en) * | 1994-10-21 | 1996-05-17 | Mitsubishi Electric Corp | Vehicle surrounding monitoring system |
| JP2001184591A (en) * | 1999-12-24 | 2001-07-06 | Mitsubishi Electric Corp | Vehicle speed monitoring device |
| CN101393687A (en) * | 2008-11-18 | 2009-03-25 | 河北中交远洲智能交通技术有限公司 | Infrared laser traffic information collecting instrument |
| CN102063795A (en) * | 2010-12-27 | 2011-05-18 | 交通运输部公路科学研究所 | System, method and device for acquiring information of intensive traffic flow |
| CN102622890A (en) * | 2012-04-16 | 2012-08-01 | 公安部第三研究所 | Laser ranging-based road vehicle information acquisition node device |
| CN102663893A (en) * | 2012-04-16 | 2012-09-12 | 公安部第三研究所 | Method for acquiring road information based on laser ranging node system |
| CN103050010A (en) * | 2012-12-31 | 2013-04-17 | 北京万集科技股份有限公司 | Integrated laser scanning traffic survey device and integrated laser scanning traffic survey method |
| CN205068772U (en) * | 2015-08-01 | 2016-03-02 | 深圳市砝石激光测控有限公司 | Light curtain laser traffic condition survey system |
-
2016
- 2016-08-17 CN CN201610682686.6A patent/CN106128106A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08122060A (en) * | 1994-10-21 | 1996-05-17 | Mitsubishi Electric Corp | Vehicle surrounding monitoring system |
| US5808728A (en) * | 1994-10-21 | 1998-09-15 | Mitsubishi Denki Kabushiki Kaisha | Vehicle environment monitoring system |
| JP2001184591A (en) * | 1999-12-24 | 2001-07-06 | Mitsubishi Electric Corp | Vehicle speed monitoring device |
| CN101393687A (en) * | 2008-11-18 | 2009-03-25 | 河北中交远洲智能交通技术有限公司 | Infrared laser traffic information collecting instrument |
| CN102063795A (en) * | 2010-12-27 | 2011-05-18 | 交通运输部公路科学研究所 | System, method and device for acquiring information of intensive traffic flow |
| CN102622890A (en) * | 2012-04-16 | 2012-08-01 | 公安部第三研究所 | Laser ranging-based road vehicle information acquisition node device |
| CN102663893A (en) * | 2012-04-16 | 2012-09-12 | 公安部第三研究所 | Method for acquiring road information based on laser ranging node system |
| CN103050010A (en) * | 2012-12-31 | 2013-04-17 | 北京万集科技股份有限公司 | Integrated laser scanning traffic survey device and integrated laser scanning traffic survey method |
| CN205068772U (en) * | 2015-08-01 | 2016-03-02 | 深圳市砝石激光测控有限公司 | Light curtain laser traffic condition survey system |
Non-Patent Citations (1)
| Title |
|---|
| 王晓红: "《传感器应用技术》", 30 September 2014, 清华大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107945538A (en) * | 2017-04-06 | 2018-04-20 | 青岛翰兴知识产权运营管理有限公司 | A kind of intelligent traffic signal control method |
| CN107945538B (en) * | 2017-04-06 | 2021-04-30 | 深圳市拓必达科技有限公司 | Intelligent traffic signal control method |
| CN107507414A (en) * | 2017-07-05 | 2017-12-22 | 湖北鑫美企业发展股份有限公司 | A kind of crossroad access flow-monitoring device |
| CN107507414B (en) * | 2017-07-05 | 2020-12-11 | 湖北鑫美企业发展股份有限公司 | Cross road traffic flow monitoring device |
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Application publication date: 20161116 |