CN106128118A - A kind of wireless vehicle detecting system - Google Patents
A kind of wireless vehicle detecting system Download PDFInfo
- Publication number
- CN106128118A CN106128118A CN201610437661.XA CN201610437661A CN106128118A CN 106128118 A CN106128118 A CN 106128118A CN 201610437661 A CN201610437661 A CN 201610437661A CN 106128118 A CN106128118 A CN 106128118A
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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
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Traffic Control Systems (AREA)
Abstract
The present invention proposes a kind of wireless vehicle detecting system, including: detector, built-in wireless magnetoresistive transducer, specify position to bore a hole in track, detector is inserted in hole so that it is consistent with traffic direction, sealing hole with fluid sealant, detection vehicle exists and by information, sends detection data；Receptor, receives the detection data that detector sends, and carries out data processing backward upper transmission；Repeater, carries out bi-directionally transmitted between detector and the receptor outside support is arranged on receptor access point wireless range；Data intelligence processing device, for receiving the detection data from receptor, processes and stores relevant traffic statistical data.The present invention need not lay pipeline, and installation is quickly and easily, little on road surface impact, does not affect roadbed, and the holding time of road pavement is short, safeguards simple and convenient；Accuracy of detection is high, reliable and stable, is not affected by natural environment and weather (rain, snow, mist, night etc.).
Description
Technical field
The present invention relates to detection technique field, particularly to a kind of wireless vehicle detecting system.
Background technology
Along with increasing of China's vehicles number, Real-time Traffic Information is more and more important for city management.For
For Traffic information demonstration and traffic investigation, section vehicle detection is requisite.Existing section vehicle detection mainly has
Following several ways:
(1) ground induction coil detection
The installation process of ground induction coil need to cut road surface, and road pavement is destroyed serious, affects Road Service Life；Each coil
Being both needed to threading, speed of application is slow, takies the road surface time long；Additionally special road section such as bridge, tunnel etc. is difficult to install.
Heavy vehicle causes surface deformation or not by, pavement maintenance, high latitude situations such as phase and low latitudes summer that thaw
The smooth Detection results that can affect, increases maintenance workload；Feeder line breakdown impact uses；Road surface canalization again needs again to cut road
Face is installed.
It is long that maintenance process takies the road surface time；As single coil damages, it is impossible to cutting lead groove in situ, cause road surface
Damage, affects the attractive in appearance and life-span；Average maintenance times is many.
Ground induction coil detection is poor with the compatibility of traffic information acquisition system based on other technology.
(2) Video Detection
Video Detection generally needs independent vertical rod, threading；It is long that construction takies the road surface time.
Illuminance is required higher by Video Detection, wind, rain, snow, mist, etc. weather and backlight can affect accuracy of detection.
It is long that maintenance process takies the road surface time, needs work high above the ground.
In addition to Ethernet interface, Video Detection can meet the demand of remaining system, is used for existing section.
(3) microwave detection
Microwave detection needs vertical rod, threading, if Detection results to be improved, needs set up gantry on section or be installed on
On overpass.
Microwave detection is when speed is less than 20 kilometers/hour, and accuracy of detection is the highest.
I&M is made to become the most complicated since it is desired that forward is installed on portal frame or L-type crossbeam.
In addition to Ethernet interface, microwave detection can meet the demand of remaining system, is used for existing section.
Existing section vehicle detection mode, installing, use, safeguard and have in terms of compatibility various deficiency, and,
Existing detecting system is in addition to providing data on flows, it is impossible to provide the parameters such as Vehicle Speed, occupation rate, time headway.
Summary of the invention
The present invention proposes a kind of wireless vehicle detecting system, uses the existence of detector detection vehicle on embedment road surface with logical
Crossing, by low-power wireless power technology, detection data are sent to neighbouring receptor in real time, receptor is then by data transmission
To traffic signal control or traffic control system.
The technical scheme is that and be achieved in that:
A kind of wireless vehicle detecting system, including:
Detector, built-in wireless magnetoresistive transducer, specify position to bore a hole in track, detector is inserted in hole,
Making it consistent with traffic direction, seal hole with fluid sealant, detection vehicle exists and by information, sends detection data；
Receptor, receives the detection data that detector sends, and carries out data processing backward upper transmission；
Repeater, is carried out between detector and the receptor outside support is arranged on receptor access point wireless range
Bi-directionally transmitted；
Data intelligence processing device, for receiving the detection data from receptor, processes and stores relevant traffic statistical number
According to.
Alternatively, 1 described detector is installed in every track, and average vehicle commander obtained estimating speed divided by the time that covers of vehicle
Degree.
Alternatively, described average vehicle commander is 4.5 meters.
Alternatively, same track being installed two described detectors, installation site is at a distance of 3-5 rice；
Headstock arrived for the second detector moment and deducts headstock and arrived for the first detector moment and be vehicle at two detectors
By the time, calculate vehicle by below equation and travel precise speed (unit K m/h): (two detector spacings (rice) ×
3.6 × 1000)/(second the-the first detector moment in detector moment).
Alternatively, the visual field of described repeater and described receptor is 120 °.
The invention has the beneficial effects as follows:
(1) need not lay pipeline, installation is quickly and easily, little on road surface impact, does not affect roadbed, road pavement
Holding time is short, safeguards simple and convenient；
(2) accuracy of detection is high, reliable and stable, is not affected by natural environment and weather (rain, snow, mist, night etc.).
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the intersection signal control layout of the present invention a kind of wireless vehicle detecting system；
Fig. 2 is the scheme of installation of detector of the present invention；
Fig. 3 is the operation principle schematic diagram of detector of the present invention；
Fig. 4 is the intersection signal control layout of another embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The present invention proposes a kind of wireless vehicle detecting system, as it is shown in figure 1, include: detector, receptor, repeater,
Data intelligence processing device, uses the existence of the detector detection vehicle on embedment road surface and passes through, by low-power wireless power technology
Detection data are sent to neighbouring receptor in real time, and receptor transfers data to data intelligence processing device then.
As in figure 2 it is shown, the built-in wireless magnetoresistive transducer of the detector of the present invention, position is specified to bore a hole in track,
Being inserted by detector in hole so that it is consistent with traffic direction, finally seal hole with fluid sealant, detection vehicle exists and by letter
Breath, sends detection data.Detector is powered by battery, such as Li-SOCI23.6V battery, 57Ah.
Each detector can installation within 7-10 minute, installation process only needs specify position bore one straight
Footpath about 102mm, the hole of deep about 150mm, insert detector in hole so that it is consistent with traffic direction, finally close with earth magnetism
Sealing seals hole.
A specific embodiment of detector is given below, and this embodiment is only schematically, should not be used as the present invention
The restriction of protection domain.
The technical parameter of detector:
Radio band: 2.4GHz；
Bandwidth chahnel: 2 to 2.6MHz；
Passage: 16；
Reception/transfer rate: 250kbps；
Antenna type: block microstrip antenna；
Antenna: 120 ° (± 60 °)；
Output: 0 to 5dBm；
Receiving sensitivity :-95dBm；
Detection sensitivity: 0-16 level；
Power supply: Li-SOCI2 3.6V battery, 57Ah；
Protection class: IP68；
Operating ambient temperature :-40 ± 2 DEG C～+85 ± 2 DEG C.
As it is shown on figure 3, the built-in wireless magnetoresistive transducer of detector, the region that vehicle is put through wireless detector, by
Existence in vehicle interior ferromagnetic material result in this magnetic field of the earth, region skewness, and detector can detect due to vehicle
The magnetic field of the earth change disturbed and cause.
In embodiment illustrated in fig. 1,1 detector is installed in every track, with average vehicle commander divided by vehicle the time that covers i.e.
Available estimating speed, it is 4.5 meters that the present invention arranges average vehicle commander.
An alternative embodiment of the invention as shown in Figure 4, same track is installed two detectors, i.e. can get vehicle
Precise speed.The installation site of two detectors is at a distance of 3-5 rice, and headstock arrived for the second detector moment and deducts headstock and arrive first
The detector moment be vehicle at two detectors by the time, calculate vehicle by below equation and travel precise speed
(unit K m/h): (two detector spacings (rice) × 3.6 × 1000)/(second the-the first detector moment in detector moment).
The receptor of the present invention is for receiving the detection data that detector sends, and carries out processing backward uploading by data
Defeated.
Receptor maintains double-direction radio to be connected with detector and repeater, sets up and sends configuration order, and reception collects to come
The data of self-detector；Then, receptor by wired or wireless connection (or both compound modes) by detector detection data
It is transferred to data intelligence processing device.
Receptor uses an external dc power input, and power supply is typically provided by a neighbouring PoE power supply or solar panel,
Also one specified 48VDC independent current source of optional use.Power supply is delivered to receive by POE (PoE) pair cable
Device, the PoE equipment of available standards (48VDC is provided).
Receptor may be installed overhead 4 meters or higher position, in order to carries to neighbouring wireless detector and repeater
Cover for sufficient signal.Receptor monitor full time its with each wireless detector and the wireless connections of repeater, it is provided that
RSSI and the LQI value that can check at the scene, if this access point has IP to connect, and is remotely monitored.The built-in flow of receptor
Module can add up track data, and interval is uploaded to flow collection server according to set time, and network can keep in friendship when interrupting
Logical data.
A specific embodiment of receptor is given below, and this embodiment is only schematically, should not be used as the present invention
The restriction of protection domain.
The technical parameter of receptor:
Radio band: 2.4GHz；
Bandwidth chahnel: 2 to 2.6MHz；
Passage: 16；
Reception/transfer rate: 250kbps；
Antenna type: block microstrip antenna；
Antenna: 120 ° (± 60 °)；
Output: 0 to 5dBm；
Receiving sensitivity :-95dBm；
Power supply: 220V DC；
Protection class: IP68；
Operating ambient temperature :-40 ± 2 DEG C～+85 ± 2 DEG C, humidity :≤95% non-condensation.
Repeater, is carried out between detector and the receptor outside support is arranged on receptor access point wireless range
Bi-directionally transmitted.
If one or more mounted detectors are in outside nearest receptor access point scope, then can use
One or more repeaters carry out bi-directionally transmitted between detector and the receptor outside receptor scope.
In a preferred embodiment of the present invention, repeater is 58 meters with the distance of detector, and maximum between receptor
Distance is 310 meters.Installing for simplifying, repeater powered by battery, is typically mounted on a pillar liftoff 4 meters or higher
Place, or it is arranged on overline bridge or other is architectural.It is known that radar or video frequency vehicle detection system require to consider road surface depression journey
Degree, the stability of mount point, the relative angle of the sun and other etc. factor, by contrast, the repeater of the present invention is greatly simplified
Installation process.
In the preferred embodiment, the visual field of repeater and receptor is 120 °, so can use multiple with same direction
Repeater expands scope and the coverage rate of receptor, and this pattern, for installing detector on turnout, uses by formula or deposits
It is the most convenient to be applied in combination in formula.
A specific embodiment of repeater is given below, and this embodiment is only schematically, should not be used as the present invention
The restriction of protection domain.
Repeater techniques parameter:
Radio band: 2.4GHz；
Bandwidth chahnel: 2 to 2.6MHz；
Passage: 16；
Reception/transfer rate: 250kbps；
Antenna type: block microstrip antenna；
Antenna: 120 ° (± 60 °)；
Output: 0 to 5dBm；
Receiving sensitivity :-95dBm；
Power supply: Li-SOCl2 3.6V battery, 57Ah；
Protection class: IP68；
Operating ambient temperature :-40 ± 2 DEG C～+85 ± 2 DEG C, humidity :≤95% non-condensation.
The data intelligence processing device of the present invention, for receiving the detection data from receptor, processes and stores relevant friendship
Completely count.
A specific embodiment of data intelligence processing device is given below, and this embodiment is only schematically, should not be used as
Limiting the scope of the invention.
Data intelligence processing device technical parameter:
Storage class: SD card or Special memory chip；
Interface: RS485/RS232, Ethernet interface；
Passage: 24；Expansion can be cascaded；
Power supply: 48V DC/220V AC；
Operating ambient temperature :-40 ± 2 DEG C～+85 ± 2 DEG C, humidity :≤95% non-condensation.
The wireless vehicle detecting system of the present invention, detector only need to drill through diameter 102mm-108mm when installing, the degree of depth is
The installing hole of 150mm, road pavement is destroyed little；Without threading, vertical rod, construct simple and convenient；It is short that work progress takies the road surface time；
Surface deformation or out-of-flatness do not interfere with measurement effect, reduce maintenance workload；Such as pavement maintenance, can repeat after taking out to make
With；Road surface canalization again also can be continuing with；It is short that maintenance process takies the road surface time；As single detector damages, only need to take out
Maintenance, it is not necessary to again cut road surface, former installing hole can be continuing with；There is multiple interfaces, such as: RS485/RS232, Ethernet
Mouth, level amount, I/O switch amount, greatly meet existing traffic interface requirements, incorporate various system and platform well.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (5)
1. a wireless vehicle detecting system, it is characterised in that including:
Detector, built-in wireless magnetoresistive transducer, specify position to bore a hole in track, detector is inserted in hole so that it is
Consistent with traffic direction, seal hole with fluid sealant, detection vehicle exists and by information, sends detection data；
Receptor, receives the detection data that detector sends, and carries out data processing backward upper transmission；
Repeater, carries out two-way between detector and the receptor outside support is arranged on receptor access point wireless range
Transmit；
Data intelligence processing device, for receiving the detection data from receptor, processes and stores relevant traffic statistical data.
2. wireless vehicle detecting system as claimed in claim 1, it is characterised in that 1 described detector is installed in every track,
Average vehicle commander obtains estimating speed divided by the time that covers of vehicle.
3. wireless vehicle detecting system as claimed in claim 2, it is characterised in that described average vehicle commander is 4.5 meters.
4. wireless vehicle detecting system as claimed in claim 1, it is characterised in that install two described detections on same track
Device, installation site is at a distance of 3-5 rice；
Headstock arrived for the second detector moment and deducts headstock and arrived for the first detector moment and be logical at two detectors of vehicle
Spend the time, by below equation calculate vehicle travel precise speed (unit K m/h): (two detector spacings (rice) × 3.6
× 1000)/(second the-the first detector moment in detector moment).
5. wireless vehicle detecting system as claimed in claim 1, it is characterised in that regarding of described repeater and described receptor
Field is 120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437661.XA CN106128118A (en) | 2016-06-08 | 2016-06-08 | A kind of wireless vehicle detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437661.XA CN106128118A (en) | 2016-06-08 | 2016-06-08 | A kind of wireless vehicle detecting system |
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| CN106128118A true CN106128118A (en) | 2016-11-16 |
Family
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| CN201610437661.XA Pending CN106128118A (en) | 2016-06-08 | 2016-06-08 | A kind of wireless vehicle detecting system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106600980A (en) * | 2017-02-13 | 2017-04-26 | 广州市公路勘察设计有限公司 | Traffic flow detection system |
| CN106781492A (en) * | 2016-12-30 | 2017-05-31 | 迈锐数据（北京）有限公司 | A kind of equipment management system, method and apparatus |
| CN111179602A (en) * | 2020-02-25 | 2020-05-19 | 浙江广厦建设职业技术学院 | Computer monitoring system for tunnel road section traffic management |
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Application publication date: 20161116 |