CN207916880U - A kind of train speed's detection device, train image acquisition system - Google Patents
A kind of train speed's detection device, train image acquisition system Download PDFInfo
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- CN207916880U CN207916880U CN201820918755.3U CN201820918755U CN207916880U CN 207916880 U CN207916880 U CN 207916880U CN 201820918755 U CN201820918755 U CN 201820918755U CN 207916880 U CN207916880 U CN 207916880U
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Abstract
This application involves technical field of rail traffic, more particularly to a kind of train speed's detection device, train image acquisition system, by the way that at least two sensor units are arranged on train rail, train wheel can send out signal when passing through, server is set ON TRAINS simultaneously to obtain the signal that sensor unit is sent out, train speed can be obtained by the actual range sent out between the time difference of signal and sensor unit, and testing result is accurate, is not affected by the external environment；Image acquisition units are set on the ground around train driving region, server adjusts the frequency of taking pictures of image acquisition units according to train speed in real time, so that the adjacent image shot twice is sliceable, avoid or reduce the deformations such as image stretch, compression, it realizes to the Image Acquisition of train in traveling, true, accurate evidence is provided for train safety detection.
Description
Technical field
This application involves technical field of rail traffic more particularly to a kind of train speed's detection device, train image acquisitions
System.
Background technology
In field of track traffic, in the project that safety detection is carried out in a manner of image recognition, it is necessary to first that train is to be checked
Location is set or the clear image information collection in region is got off.In Image Acquisition, train speed, which becomes, influences collection effect and figure
As the important factor in order of recognition effect.How current speed is accurately measured, and then the frame per second for controlling Image Acquisition becomes
Urgent problem.The existing scheme to test the speed has following several：
(1) GPS tests the speed, and tachometric survey is carried out by global position system；
Existing defect：GPS test the speed influenced to interfere by factors such as ambient weather buildings it is larger, in some cases may be complete
Full failure；
(2) radar velocity measurement carries out train speed measurement by the microwave that rail level reflects；
Existing defect：Radar velocity measurement is due to that can cause the Single Point of Faliure of radar to become prominent the dependence of rail level reflectivity
Go out because as subway line rail level situation becomes increasingly complex, including ground line, underground line, elevated line, quarrel track and
Ballastless track etc., can lead to rail level reflection case also becomes complicated, to influence the accuracy of radar velocity measurement；
(3) it is tested the speed using various speed probes, the distance of train walking is measured using the perimeter of wheel as ruler, led to
It crosses the distance and calculates speed with the time that the distance is spent of walking；
Existing defect：The speed that speed probe measures in the case of wheel-slip may be inaccurate.
Therefore it first has to solve the problems, such as accurately to measure speed, could realize that carrying out train in a manner of image recognition examines safely
The purpose of survey.
Utility model content
In order to solve the above-mentioned technical problem above-mentioned technical problem or is at least partly solved, this application provides a kind of row
Vehicle speed detection apparatus, train image acquisition system.
This application provides a kind of train speed's detection devices, including：
Sensor unit：It is arranged on train rail, for sending out signal when wheel passes through；The sensor unit is set
At least two are set, at least two sensor units are arranged along the extending direction interval of the train rail；
Server：It installs ON TRAINS, the signal sent out for receiving the sensor unit, and is appointed according to what is received
Two sensor units of meaning send out the distance between the time interval of signal and the corresponding sensor unit, determine train
Travel speed.
Optionally, the sensor unit is mounted on the inside of the train rail.
Optionally, the material of the sensor unit is magnet steel.
Optionally, the server further includes network communication unit.
Present invention also provides a kind of train image acquisition system, including above-mentioned train speed's detection device and：
Image acquisition units：Opposite train rail is fixedly mounted, for upon receipt of the instructions, executing and obtaining train image
Action；
The server includes the data acquisition unit and data analysis unit of communication connection, and the data acquisition unit is used
In the image for obtaining the acquisition of described image collecting unit, the signal sent out for receiving the sensor unit, the data point
Analysis unit is used to send instruction to described image collecting unit and for according to sensor list described in any two received
Member sends out the time interval and the determining train running speed of the distance between the corresponding sensor unit of signal, and according to train
Travel speed adjusts the frequency that instruction is sent to described image collecting unit.
Optionally, the setting of described image collecting unit is multiple, and multiple described image collecting units are distributed in the train row
It sails at least one in region left side, right side, lower section.
Optionally, multiple described image collecting units are located in same vertical plane and obtain the action synchronization of train image
It executes.
Optionally, it is anti-to all have openable top for the described image collecting unit below the train driving region
Protecting cover.
Optionally, described image collecting unit is high-speed industrial camera.
Above-mentioned technical proposal provided by the embodiments of the present application has the following advantages that compared with prior art：
Herein described train speed's detection device is arranged by the way that at least two sensor units are arranged on train rail
Vehicle wheel can send out signal when passing through, while setting server is led to obtaining the signal that sensor unit is sent out ON TRAINS
Train speed can be obtained by crossing the actual range sent out between the time difference of signal and sensor unit, and testing result is accurate, no
It is affected by the external environment；
Train image acquisition system includes above-mentioned train speed's detection device, passes through the ground around train driving region
Upper setting image acquisition units, server adjust the frequency of taking pictures of image acquisition units according to train speed in real time, so that
The adjacent image shot twice is sliceable, avoids or reduces the deformations such as image stretch, compression, realizes to train in traveling
Image Acquisition provides true, accurate evidence for train safety detection.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, other drawings may also be obtained based on these drawings.
Fig. 1 is the schematic side view of train image acquisition system described in the embodiment of the present application；
Fig. 2 is the schematic top plan view of train image acquisition system described in the embodiment of the present application；
Fig. 3 is the structure diagram of train speed's detection device described in the embodiment of the present application；
Fig. 4 is the structure diagram of train image acquisition system described in the embodiment of the present application.
Wherein, 1, image acquisition units；11, Image Acquisition visual angle；2, train rail；3, sensor unit.
Specific implementation mode
It, below will be in the embodiment of the present application to keep the purpose, technical scheme and advantage of the embodiment of the present application clearer
Technical solution be clearly and completely described, it is clear that described embodiment is a part of the embodiment of the application, without
It is whole embodiment.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work
Under the premise of the every other embodiment that is obtained, shall fall in the protection scope of this application.
Embodiment one：
Shown in Fig. 1 to Fig. 3, the present embodiment provides a kind of train speed's detection devices, including：
Sensor unit 3：It is arranged on train rail 2, for sending out signal when wheel passes through；The sensor unit
3 settings at least two, at least two sensor units 3 are arranged along the extending direction interval of the train rail 2；Sensor
Unit 3 is arranged at track, belongs to rail side component；
Server：Installation ON TRAINS, the signal that is sent out for receiving the sensor unit 3, and according to receiving
Sensor unit 3 described in any two sends out the distance between the time interval of signal and the corresponding sensor unit 3, determines
Train running speed；Server is arranged in the car, belongs to interior component.
Specifically, when the wheel of train passes through each sensor unit 3, each sensor unit 3 can send out one
A signal is previously stored with or can get at any time the actual range between each sensor unit 3, server in server
The time point that respective sensor unit 3 sends out signal is received and recorded, obtains the time for sending out signal between each sensor unit 3
Interval, and according to the actual range between respective sensor unit 3, vehicle of the train by the sensor unit 3 when is calculated
Speed realizes the accurate detection to train speed；Detection process is not influenced by factors such as ambient weather, buildings；Sensor list
Member 3 is arranged on train rail 2, directly opposite with wheel, is not influenced by installation environment；3 position of sensor unit is fixed, and is
It is that This move foundation is judged to be passed through with wheel, testing result true and accurate；Sensor is directly installed on train rail 2
On, facilitate installation.
This programme can be realized using sensor unit 3, naturally it is also possible to which setting is more, to realize to testing result
Verification and calibration so that the error smaller to test the speed.
Optionally, as depicted in figs. 1 and 2, the sensor unit 3 is mounted on the inside of the train rail 2.Train rail
Road 2 can play protective action, it is ensured that sensor unit 3 is hardly damaged, and ensures being normally carried out for detection.
Optionally, the material of the sensor unit 3 is magnet steel.Magnet steel be with magnetic alloy material, therefore it is available
Make passive sensor, without power supply, energy saving, easy for installation, service life is long；Magnet steel performance is stablized, and different evils are can adapt to
Bad environment；System installation is simple, stable；It tests the speed in time, error is small.
Optionally, the server further includes network communication unit.Network communication unit is used to communicate with outer net, it is convenient into
Row remote operation；Agreement that cellular data network, wifi etc. can be communicated with outer net may be used into line number in network communication unit
According to transmission.
Embodiment two：
In addition, referring to shown in Fig. 1,2,4, present invention also provides a kind of train image acquisition systems, including embodiment one
Train speed's detection device and：
Image acquisition units 1：Opposite train rail 2 is fixedly mounted, for upon receipt of the instructions, executing and obtaining train figure
The action of picture；Image acquisition units 1 are also disposed at track 2, also belong to rail side component.
The server includes the data acquisition unit and data analysis unit of communication connection, and the data acquisition unit is used
In the image for obtaining the acquisition of described image collecting unit 1, the signal sent out for receiving the sensor unit 3, the data
Analytic unit is used to send instruction to described image collecting unit 1 and for sensing according to described in any two received
Device unit 3 sends out the time interval and the determining train running speed of the distance between the corresponding sensor unit 3 of signal, and root
The frequency that instruction is sent to described image collecting unit 1 is adjusted according to train running speed；Server is arranged in the car, belongs to interior
Component.
Train speed can be accurately obtained by train speed's detection device, is then adjusted to image according to current vehicle speed
Collecting unit 1 sends the frequency of instruction, so that the adjacent image shot twice may be implemented to splice, avoids or reduces image drawing
It the deformations such as stretches, compress, to obtain complete train image information by being continuously shot, being provided very for train safety detection
Real, accurate evidence.
Optionally, described image collecting unit 1 is arranged multiple, and multiple described image collecting units 1 are distributed in the train
In running region left side, right side, lower section at least one at.It is in order to increase coverage, to realize entirely that multiple purposes, which is arranged,
Face shoots the purpose of train image, and train bottom parts are more and closer apart from ground, and coverage is limited, therefore can be
The lower section setting multiple images collecting unit 1 in train driving region；The train left and right sides zero is few, can be on a train driving region left side
Image acquisition units 1 are respectively set in the slightly remote distance in right both sides, and by selecting suitable distance, left or right side installs one respectively
A image acquisition units 1 achieve that the complete shooting to train side；It is generally hardly damaged at the top of train, and is taken the photograph by other
As head can take, therefore general image acquisition units 1 are not set in train driving overlying regions.Above-mentioned image acquisition units
1 setting is a kind of rational set-up mode of comparison, and the application is not limited to a kind of above-mentioned 1 side of distribution of image acquisition units
Formula.
Optionally, multiple described image collecting units 1 are located in same vertical plane and obtain the action synchronization of train image
It executes.The image that i.e. multiple images collecting unit 1 is shot can be spliced into one from train left side-underbody-train right side successively
Continuous image can be obtained complete train exterior image after multiple this continuous image mosaics.
Optionally, the described image collecting unit 1 below the train driving region all has openable top
Protective cover.The Image Acquisition visual angle 11 of image acquisition units 1 below train driving region upward, rain, snow, airborne dust weather
It is easy to block or damage image acquisition units 1, therefore image can be adopted by top protection lid when image need not be acquired
Collection unit 1 is blocked, its service life is extended.It can be acted by the opening and closing of Remote Device Control top protection lid,
Preferably the control of the action and shooting action are realized and linked, for example detects do not have train on track by other component, that
Just it is not necessarily to open top part protective cover；If detecting there is train appearance in specified region, explanation will need to start Image Acquisition
Unit 1 can open top protection lid in advance at this time, in order to avoid influence shooting；Train turns off top protection lid after driving away.
Optionally, described image collecting unit 1 is high-speed industrial camera.High-speed industrial camera image high resolution, can be real
Existing high-frequency shooting, is also convenient for adjusting frequency of taking pictures by server.
Below using magnet steel as sensor unit 3, the operation principle of the present embodiment is specifically introduced：Magnet steel is by several
Hard strong metal, such as a kind of magnetisable material that iron is synthesized with aluminium, nickel, cobalt, can be used as a kind of electromagnetic sensor.When train vehicle
When wheel is by magnet steel surface, magnet steel will produce an electric signal.In the application of vehicle speed measurement, two magnet steel are mounted on a rail
On the inside of road, 20 centimeters or so of distance, if installing two magnet steel on track side, the meeting when the same axis passes through two magnet steel successively
Generate two trigger signals, two signals generate time difference be exactly wheel pass through two magnet steel time, between magnet steel away from
From divided by the time difference will obtain the current speed of train.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The above is only the specific implementation mode of the application, is made skilled artisans appreciate that or realizing this Shen
Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can in other embodiments be realized in the case where not departing from spirit herein or range.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and apllied principle and features of novelty phase one herein
The widest range caused.
Claims (9)
1. a kind of train speed's detection device, which is characterized in that including：
Sensor unit：It is arranged on train rail, for sending out signal when wheel passes through；The sensor unit be arranged to
Two few, at least two sensor units are arranged along the extending direction interval of the train rail；
Server：It installs ON TRAINS, the signal sent out for receiving the sensor unit, and according to arbitrary two received
A sensor unit sends out the distance between the time interval of signal and the corresponding sensor unit, determines train driving
Speed.
2. train speed's detection device according to claim 1, which is characterized in that the sensor unit is mounted on described
The inside of train rail.
3. train speed's detection device according to claim 1, which is characterized in that the material of the sensor unit is magnetic
Steel.
4. according to claim 1-3 any one of them train speed detection device, which is characterized in that the server further includes
Network communication unit.
5. a kind of train image acquisition system, which is characterized in that detected including claim 1-4 any one of them train speed
Equipment and：
Image acquisition units：Opposite train rail is fixedly mounted, and the dynamic of train image is obtained for upon receipt of the instructions, executing
Make；
The server includes the data acquisition unit and data analysis unit of communication connection, and the data acquisition unit is for obtaining
Take the image that described image collecting unit acquires, the signal sent out for receiving the sensor unit, the data analysis list
Member to described image collecting unit for sending instruction and for according to sensor unit hair described in any two received
Go out the time interval and the determining train running speed of the distance between the corresponding sensor unit of signal, and according to train driving
Speed adjusts the frequency that instruction is sent to described image collecting unit.
6. train image acquisition system according to claim 5, which is characterized in that the setting of described image collecting unit is more
A, multiple described image collecting units are distributed at least one in the train driving region left side, right side, lower section.
7. train image acquisition system according to claim 5, which is characterized in that multiple described image collecting units are located at
In same vertical plane and the action of acquisition train image is synchronized and is executed.
8. train image acquisition system according to claim 5, which is characterized in that be located at below the train driving region
Described image collecting unit all have openable top protection lid.
9. according to claim 5-8 any one of them train image acquisition systems, which is characterized in that described image collecting unit
For high-speed industrial camera.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126884A (en) * | 2019-06-11 | 2019-08-16 | 武汉创牛科技有限公司 | A kind of driving vehicle monitoring system and its method |
| CN110243615A (en) * | 2019-06-21 | 2019-09-17 | 中国神华能源股份有限公司 | Vehicle omnidirectional images monitoring system and vehicle monitoring system |
| CN110493521A (en) * | 2019-08-22 | 2019-11-22 | 爱驰汽车有限公司 | Automatic Pilot camera control method, device, electronic equipment, storage medium |
| CN110588711A (en) * | 2019-10-09 | 2019-12-20 | 哈尔滨市科佳通用机电股份有限公司 | Vehicle-mounted railway track detection system based on locomotive safety information comprehensive monitoring device |
| CN112834777A (en) * | 2020-12-31 | 2021-05-25 | 北京金日恒升科技有限公司 | Train speed measuring method and tunnel media system installation position selecting method |
| CN112866673A (en) * | 2021-01-12 | 2021-05-28 | 北京格灵深瞳信息技术股份有限公司 | Image acquisition equipment, camera control method and device and train image acquisition system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126884A (en) * | 2019-06-11 | 2019-08-16 | 武汉创牛科技有限公司 | A kind of driving vehicle monitoring system and its method |
| CN110243615A (en) * | 2019-06-21 | 2019-09-17 | 中国神华能源股份有限公司 | Vehicle omnidirectional images monitoring system and vehicle monitoring system |
| CN110493521A (en) * | 2019-08-22 | 2019-11-22 | 爱驰汽车有限公司 | Automatic Pilot camera control method, device, electronic equipment, storage medium |
| CN110493521B (en) * | 2019-08-22 | 2021-06-15 | 爱驰汽车有限公司 | Automatic driving camera control method and device, electronic equipment and storage medium |
| CN110588711A (en) * | 2019-10-09 | 2019-12-20 | 哈尔滨市科佳通用机电股份有限公司 | Vehicle-mounted railway track detection system based on locomotive safety information comprehensive monitoring device |
| CN112834777A (en) * | 2020-12-31 | 2021-05-25 | 北京金日恒升科技有限公司 | Train speed measuring method and tunnel media system installation position selecting method |
| CN112866673A (en) * | 2021-01-12 | 2021-05-28 | 北京格灵深瞳信息技术股份有限公司 | Image acquisition equipment, camera control method and device and train image acquisition system |
| CN112866673B (en) * | 2021-01-12 | 2022-10-21 | 北京格灵深瞳信息技术股份有限公司 | Image acquisition equipment, camera control method and device and train image acquisition system |
| CN114192990A (en) * | 2021-12-02 | 2022-03-18 | 武汉华工激光工程有限责任公司 | Linear array camera image capturing control system and method applied to IC (integrated circuit) support plate laser marking machine |
| CN118379473A (en) * | 2024-06-21 | 2024-07-23 | 中数智科(杭州)科技有限公司 | Whole train image acquisition method, equipment and storage medium for urban train |
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