CN217598597U - Urban rail transit vehicle base construction area personnel safety control system - Google Patents
Urban rail transit vehicle base construction area personnel safety control system Download PDFInfo
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- CN217598597U CN217598597U CN202220607578.3U CN202220607578U CN217598597U CN 217598597 U CN217598597 U CN 217598597U CN 202220607578 U CN202220607578 U CN 202220607578U CN 217598597 U CN217598597 U CN 217598597U
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Abstract
The utility model relates to the technical field of urban rail transit, in particular to a personnel safety management and control system for construction area of urban rail transit vehicle base, which comprises a personnel perception module and an interface module, wherein the personnel perception module transmits the acquired personnel perception information through the interface module; the personnel perception module consists of a binocular vision personnel perception unit and a personnel identity recognition unit, and the range boundary of the camera image acquisition of the binocular vision personnel perception unit is the same as the physical boundary of the monitored area at the inlet end of the train overhaul warehouse; the personnel identity recognition unit consists of a radio frequency reader-writer and an omnidirectional radio frequency antenna and is used for reading personnel identity information prestored in an RFID card of a detected person entering a monitored area, and the range boundary of the omnidirectional radio frequency antenna for receiving radio frequency signals is the same as the range boundary of camera image acquisition. Due to the fact that the double-mode monitoring is adopted, the monitoring boundary is strictly set, and false alarm caused by the fact that people do not enter a specific area due to approaching is avoided.
Description
Technical Field
The utility model relates to an urban rail transit technical field, in particular to urban rail transit vehicle base construction area personnel safety management and control system.
Background
The urban rail traffic vehicle base undertakes the tasks of parking, train maintenance and equipment maintenance of the urban rail whole line train.
The train base operation warehouse and the maintenance warehouse are both semi-open areas, the operation of train motor cars, train maintenance and equipment construction and maintenance is very frequent, and the possibility of cross operation exists, namely, when the train motor cars exist, the possibility that maintenance constructors operate or walk in the motor car area exists. Because the area outside the train observed from the cab is relatively limited, if constructors are close to the head of the train at the side of the train and in the front of the train, the drivers cannot observe the area, and the risk of human-vehicle collision is easy to occur.
Currently, in order to reduce the occurrence of the risk accident, some manual card control means are adopted by vehicle base operation management personnel. For example, in the plan declaration phase, whether the construction plan conflicts with the motor train plan or not is fully analyzed; safety education is carried out before people enter the field, and operation risks are met; before a vehicle moves, security personnel are informed to protect or surrounding operators are prompted in a whistling mode, but in many cities, whistling is not necessary in order to reduce noise influence on residents around a vehicle base.
In summary, the manual jamming control means is not high in real-time performance, and the risk of human-vehicle collision cannot be effectively avoided.
At present, many urban rail design units, manufacturers and scientific research institutions in China propose methods and systems for guaranteeing personnel safety of vehicle bases, for example, a patent of ' a linkage system for preventing workers from entering a restricted area by mistake ' of a subway vehicle base ' mainly positions and detects the workers by using UWB, wireless readers, microwave human body sensors and the like, and divides the safety or restricted area of a site.
SUMMERY OF THE UTILITY MODEL
The utility model is directed to the above-mentioned problem, combine together video monitoring and radio frequency card control, the easy problem of deviation of resolution personnel discernment has given a city rail transit vehicle base construction region personnel safety control system, can carry out accurate control to particular region, and it is lower to form originally.
In order to achieve the above object, the present invention provides the following technical solutions:
a personnel safety control system for a construction area of an urban rail transit vehicle base comprises a personnel sensing module and an interface module;
the personnel perception module is connected with the interface module and transmits the acquired personnel perception information through the interface module, wherein the personnel perception information comprises personnel number information and personnel identity information;
the personnel perception module consists of a binocular vision personnel perception unit and a personnel identity identification unit,
the binocular vision personnel sensing unit consists of a plurality of groups of binocular cameras, and the image acquisition range boundary of the cameras is the same as the physical boundary of the monitored area at the inlet end of the train overhaul warehouse;
the personnel identity identification unit is matched with an RFID card worn by a detected person and used for reading personnel identity information prestored in the RFID card of the detected person entering a monitored area, and the range boundary of the omnidirectional radio frequency antenna for receiving radio frequency signals is the same as the range boundary of the camera image acquisition;
the omnidirectional radio frequency antenna is used for receiving a radio frequency signal of an RFID card in which personnel identity information is prestored and transmitting the radio frequency signal to a radio frequency reader-writer, and the radio frequency reader-writer is used for acquiring the personnel identity information prestored in the RFID card from the radio frequency signal.
According to the position characteristics of the entrance end of the train overhaul warehouse, a monitored area is arranged at the entrance end, the image acquisition range boundary of a camera for acquiring the number information and the identity information of personnel is the same as the physical boundary of the monitored area at the entrance end of the train overhaul warehouse, the full coverage of the image acquisition at the entrance end of the train overhaul warehouse is realized, and in addition, the range boundary of an omnidirectional radio frequency antenna for acquiring the identity information of personnel for receiving radio frequency signals is the same as the range boundary of the image acquisition of the camera. Because the personnel information is identified by adopting two modes of images and RFID radio frequency signals, and the coverage areas of video acquisition and radio frequency signal acquisition are the same, the problem that the personnel information passes by the periphery of a monitoring area but does not enter the monitoring area and can possibly generate an alarm is solved, the specific area can be accurately monitored, and the cost is lower.
As a preferred scheme, the binocular vision human perception unit is vertically installed right above a monitored area in a vertical installation mode.
As a preferred scheme, the binocular vision person perception unit adopts a Haekwondering binocular camera with the model of iDS-2CD6810F/C, and the advancing direction and the number of people in the visual coverage range of the binocular camera are obtained through the binocular camera. The binocular camera of the model has the functions of people number identification and people advancing direction, and therefore the camera is selected to carry out people number information statistics.
As a preferred scheme, the omnidirectional radio frequency antenna is arranged adjacent to the binocular vision human perception unit and is positioned above the monitored area. The omnidirectional radio-frequency antenna is arranged adjacent to the binocular vision personnel sensing unit, so that the preparation of an equipment support is reduced, and data acquisition of two sets of systems can be realized by adopting one equipment support.
As a preferred scheme, the radio frequency reader-writer with the model number UR6258 is selected, the omnidirectional radio frequency antenna is of the model number UA2626, the frequency band is 902-928 MHz, the bandwidth is 26MHz, and the gain is as follows: 9dBi; half power angle: 70 degrees.
Preferably, the system also comprises a motor car sensing module,
the motor train sensing module is connected with the interface module and transmits the acquired motor train running information through the interface module,
the bullet train sensing module is composed of an AI visual vehicle sensing unit and a laser vehicle sensing unit, and the AI visual vehicle sensing unit acquires real-time image information through a camera arranged at the position of a station gate; the laser vehicle sensing unit is arranged at the two-position end of the station track and used for acquiring the blocking distance in the warehouse-out direction.
Preferably, the AI vision vehicle sensing unit employs a Haekwondo camera model DS-2XA 2626E-IZS.
Preferably, the model of the laser vehicle sensing unit is SLDS-D150P, the nearest distance measurement is 0.5m, the farthest distance measurement is 150m, and the precision is plus or minus 10cm.
As a preferable scheme, the system also comprises a data analysis module, an acousto-optic alarm device and a field display device,
the data analysis module is connected with the output end of the interface module and used for acquiring the personnel perception information, judging whether the personnel exist or not according to the personnel perception information, if the personnel do not exist, outputting an alarm signal to the sound-light alarm device, and displaying the personnel identity information corresponding to the alarm signal on the field display device.
As a preferred scheme, the data analysis module is connected with the output end of the interface module and is used for acquiring the motor train running information, judging whether a train exists or not according to the motor train running information, and outputting a second alarm signal to the sound-light alarm device to prompt nearby operators if the train exists.
It should be noted that the judgment of "having the person" and "not having the person" and the judgment of "having the train" and "not having the train" both adopt simple threshold judgment, for example, the value is greater than the number K, which indicates that the identity information is not correct, and the number is not greater than or equal to the number K, and then the person is present. The presence or absence of the train in the image has the function of the camera with the AI technology, so the judging method is simple to compare or is the prior art, the method does not contribute to the creativity of the scheme, the scheme does not rely on the method to solve the technical problem, and the alleged technical effect is realized.
Compared with the prior art, the invention has the following beneficial effects:
the utility model discloses a video image count and radio frequency signal read identity information and combine together, carry out personnel's safety's control to the border of camera image acquisition's scope is the same with train overhauls storehouse entry end by regional physical boundary, has practiced thrift the cost on the one hand, implements simply, and on the other hand, owing to adopted video monitoring and the dual mode control of radio frequency card control, has strictly set for the control border, has avoided because personnel are close to and do not get into the wrong report that the specific area caused.
Description of the drawings:
FIG. 1 is an architecture diagram of a safety control system for personnel in a construction area of an urban rail transit vehicle base in embodiment 1;
fig. 2 is a schematic view of a mounting structure of a binocular camera and an omnidirectional radio frequency antenna in embodiment 1;
fig. 3 is a side view of the mounting structure of the apparatus stand and the binocular camera in embodiment 1;
fig. 4 is a top view of the binocular camera and the omnidirectional rf antenna of embodiment 1 after they are installed;
fig. 5 is a schematic view showing the installation of the equipment rack of the embodiment 1 at the entrance end of the train service depot.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
Example 1
A personnel safety control system for a construction area of an urban rail transit vehicle base is shown in figure 1 and comprises a personnel sensing module, a motor car sensing module, an interface module, sound and light alarm equipment and field display equipment. The personnel perception module is connected with the interface module, and outputs personnel perception information to the data analysis module through the interface module, the motor car perception module is connected with the interface module, and outputs motor car driving information to the data analysis module through the interface module, and the sound and light alarm device is connected with the output end of the data analysis module and used for alarming according to the output signal of the data analysis module. And the field display equipment is connected with the second output end of the data analysis module and is used for displaying the personnel perception information and the motor car running information and displaying the alarm signal.
Personnel perception module comprises binocular vision personnel perception unit and personnel identity identification unit, and binocular camera and omnidirectional radio frequency antenna mounting structure sketch map are shown in fig. 2, binocular vision personnel perception unit comprises the multiunit binocular camera, combines with the physical boundary in the region that is monitored, realizes comparatively wide open area's whole people statistics. The binocular vision personnel sensing unit adopts a vertical installation mode, the binocular vision personnel sensing unit is vertically installed right above the identification area, the two eyes of the binocular vision personnel sensing unit are perpendicular to the ground, as an optimal scheme, the binocular vision personnel sensing unit adopts a Haikangwei vision binocular camera with the model of iDS-2CD6810F/C, the height information and the shape information of an object passing through the vision coverage range of the binocular camera are obtained through the binocular camera, the height information and the shape information are compared with the height and the head shoulder shape characteristics of a normal human to judge whether the object is a person, if the object is a person, and the person sequentially crosses a preset boundary, the in-out direction and the number of the person are obtained.
The functional characteristics of the Haikangwei vision binocular camera with iDS-2CD6810F/C are as follows: by adopting a binocular stereo vision technology and stereo camera based on double lenses, height information of a target is obtained, and the behavior track of pedestrians is analyzed by combining an intelligent tracking algorithm, so that the number of people in the passenger flow and the walking direction are calculated, a technical area can be processed in a blocking manner, the number of people passing (not entering a store) can be counted, and a counting basis is provided for analyzing the store entering rate. In addition, a built-in flash is used for storing passenger flow data, and an SD card is not required to be additionally arranged; the method supports an H.264 video compression algorithm, and supports multi-level video quality configuration and H.264 coding complexity Baseline/Main/High Profile; the GBK character library is supported, the superposition of more Chinese characters and uncommon characters is supported, and the OSD color self-selection is supported; the method supports ONVIF, CGI, ISAPI, GB/T28181 and E home protocol access; and lightning protection, surge protection and static prevention are supported. Due to the functions of the camera, the camera is selected as a binocular vision personnel sensing unit in a safety control system of the personnel in the construction area of the vehicle base, the statistics of the number of people and the walking direction are met, and the operation is stable.
The personnel identity recognition unit consists of a radio frequency reader-writer and an omnidirectional radio frequency antenna and is used for recognizing the personnel identity information entering the area. The omnidirectional radio-frequency antenna is adjacent to the binocular vision personnel sensing unit and located above a preset boundary area, the coverage range of the omnidirectional radio-frequency antenna comprises the coverage range of the camera of the binocular vision personnel sensing unit, the top view of the installed binocular camera and the omnidirectional radio-frequency antenna is shown in figure 4, and the installation schematic diagram of the equipment support at the inlet end of the train overhaul warehouse is shown in figure 5. And the omnidirectional radio frequency antenna transmits the acquired information to a radio frequency reader-writer in the authorization small cabinet through a communication cable. The radio frequency reader-writer is a radio frequency reader-writer with the model number of UR6258, and the radio frequency reader-writer has the characteristics that:
and (3) tag caching: the electronic tags meeting EPC CLASS 1G 2 and ISO18000-6B standards are sufficiently supported;
tag cache capacity: 600 @ longest 128bitsEPC or 180 @ longest 496bitsEPC
The label counts the peak value: peak tag query speed >700 pieces
Reading the distance: 0-45 m according to different parameters and performances of the label and the antenna
The working frequency is as follows: the working frequency is 860 to 868MHz/902 to 928MHz (which can be adjusted according to the requirements of different countries or regions). The radio frequency reader-writer of the model can meet the requirement of personnel identification.
The model of the omnidirectional radio frequency antenna is UA2626, frequency band: 902-928 MHz; bandwidth: 26MHz; gain: 9dBi; half power angle: 70 degrees. The detected person wears an RFID card with the model of UT6507, and when the person enters from a preset area, the radio frequency reader-writer obtains the identity information of the detected person prestored in the RFID card through the omnidirectional radio frequency antenna so as to determine the person entering the specific area.
The bullet train sensing unit consists of an AI visual vehicle sensing unit and a laser vehicle sensing unit. The AI vision vehicle perception unit obtains real-time image information through a camera arranged at the position of a station stock gate, and obtains train and motor train information through the AI vision vehicle perception unit. The AI vision vehicle sensing unit adopts a Haekwondo camera with the model number of DS-2XA2626E-IZS, and the functional characteristics of the camera are as follows: and (3) adopting a deep learning algorithm, taking mass pictures and video resources as a roadbed, and extracting target characteristics through a machine to form a deep target image for learning. The detection rate of the target is greatly improved, the issuing and running of the AI model are supported, and the detection result is generated and uploaded to the service platform. The method supports the detection of a specific target, classifies the detection result, uploads the detection result and the classification result to a service platform, supports the configuration of event rules, filters the detection classification result according to the set rules, and generates an alarm. And supporting a video task, analyzing the real-time video, analyzing according to a set frame rate, and uploading a result according to a set alarm interval. And supporting a chart grabbing round inspection task, carrying out chart grabbing analysis according to a set time interval, and uploading a result according to a set alarm interval. Due to the intelligent performance, the device can be used for acquiring the train and motor car information based on the AI technology, the AI camera is arranged on the parapet, but can detect dozens of meters in front, and the positions of the AI camera projected to the ground are K and J areas shown in figure 5. In addition, the resolution of the image can reach 1920 x 1080@25fps, the code stream is smoothly set, different requirements on image quality and fluency under different scenes are met, 3D digital noise reduction is supported, 120dB wide dynamic state is supported, backlight compensation is supported, different monitoring environments are met, and therefore visual perception under the running speed of the train in the vehicle base can be completely supported. Meanwhile, the camera adopts a high-efficiency infrared lamp, the service life is long, the irradiation distance can reach 50 meters to support Smart IR, the supplementary lighting overexposure prevention opening and closing is supported, the opening and the lower support are automatic and manual, the manual support controls the luminance of the supplementary lighting lamp according to the distance grade, the ICR infrared filter sheet type automatic switching is realized, the real day and night monitoring is realized, and the day and night two sets of independent parameter configuration are supported. The characteristic of vehicle base work is satisfied, and the accuracy of perception information can not be reduced because of poor sight at night.
The laser vehicle sensing unit is arranged at the two-position end of the station track, whether a vehicle exists in the station track at present or not is judged by obtaining the blocking distance of the sensing laser mounting position towards the warehouse-out direction, and the direction of a motor train of the train and the distance of the motor train are obtained through a blocking distance curve. The type of the laser vehicle sensing unit is SLDS-D150P, the nearest distance measuring distance is 0.5m, the farthest distance measuring distance is 150m, the precision is plus or minus 10cm, POE power supply is supported, and a TCP interface is supported.
The interface module is composed of a data receiving unit and a data sending unit, and can not only forward the personnel perception information output by the personnel perception module to the data analysis module and forward the motor car driving information output by the motor car perception module to the data analysis module, but also realize the interface with the visual grounding device and the electromagnetic lock of the upper landing platform door, and acquire the electrified information of the contact net of the station track and the on-off state information of the electromagnetic lock. When the construction operation is finished and the contact point is not electrified, the electrified state of the contact net is checked, and if the contact net is not electrified, the prompt is given to a dispatcher and a construction responsible person.
The data analysis module is composed of a personnel violation intrusion analysis unit, a station track vehicle state machine unit and an alarm instruction pushing unit. The illegal personnel intrusion analysis unit accurately identifies the personnel identity information carrying the radio frequency identification card through the personnel number information and the personnel identity information acquired from the personnel sensing module, identifies whether the personnel enters the authorization information of the area or not, and can also accurately identify the personnel not carrying the radio frequency identification card. And further obtaining the total recognition of violation intrusion, and further converting the total recognition into an unauthorized person intrusion alarm instruction.
The alarm instruction pushing unit pushes a motor car alarm instruction generated by the station wagon state machine and an unauthorized person intrusion alarm generated by the person violation intrusion analysis unit to the acousto-optic alarm device.
The sound and light alarm device can give out Chinese voice and red flash alarm for prompting nearby operators.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A personnel safety control system for a construction area of an urban rail transit vehicle base is characterized by comprising a personnel sensing module and an interface module;
the personnel perception module is connected with the interface module and transmits the acquired personnel perception information through the interface module, wherein the personnel perception information comprises personnel number information and personnel identity information;
the personnel perception module consists of a binocular vision personnel perception unit and a personnel identity identification unit,
the binocular vision personnel sensing unit consists of a plurality of groups of binocular cameras, and the image acquisition range boundary of the cameras is the same as the physical boundary of the monitored area at the inlet end of the train overhaul warehouse;
the personnel identity identification unit is matched with an RFID card worn by a detected person and used for reading personnel identity information prestored in the RFID card of the detected person entering a monitored area, and the range boundary of the omnidirectional radio frequency antenna for receiving radio frequency signals is the same as the range boundary of the camera image acquisition;
the omnidirectional radio frequency antenna is used for receiving a radio frequency signal of an RFID card in which personnel identity information is prestored and transmitting the radio frequency signal to a radio frequency reader-writer, and the radio frequency reader-writer is used for acquiring the personnel identity information prestored in the RFID card from the radio frequency signal.
2. The system of claim 1, wherein the binocular vision people sensing unit is vertically installed directly above the monitored area.
3. The urban rail transit vehicle base construction area personnel safety control system according to claim 2, wherein the binocular vision personnel sensing unit adopts a Haikang Weiwei binocular camera with the model of iDS-2CD6810F/C, and the binocular camera is used for acquiring the traveling direction and the number of people in the visual coverage range of the binocular camera.
4. The system of claim 3, wherein the omnidirectional RF antenna is disposed adjacent to the binocular vision people perception unit and above the monitored area.
5. The personnel safety control system in the construction area of the urban rail transit vehicle base as claimed in claim 4, wherein the radio frequency reader-writer is UR6258, the omnidirectional radio frequency antenna is UA2626, the frequency band is 902-928 MHz, the bandwidth is 26MHz, the gain is: 9dBi; half power angle: 70 degrees.
6. The system for managing and controlling personnel safety in construction areas of urban rail transit vehicle bases as recited in any one of claims 1 to 5, further comprising a motor car sensing module,
the motor train sensing module is connected with the interface module and transmits the acquired motor train running information through the interface module,
the bullet train sensing module consists of an AI visual vehicle sensing unit and a laser vehicle sensing unit, wherein the AI visual vehicle sensing unit acquires real-time image information through a camera arranged at the position of a station stock gate; the laser vehicle sensing unit is arranged at the two-position end of the station track and used for acquiring the blocking distance in the warehouse-out direction.
7. The system as claimed in claim 6, wherein the AI vision vehicle sensing unit is a Haekwev camera with model number DS-2XA 2626E-IZS.
8. The system as claimed in claim 7, wherein the laser vehicle sensing unit is SLDS-D150P, the nearest distance is 0.5m, the farthest distance is 150m, and the accuracy is plus or minus 10cm.
9. The system for personnel safety management and control in construction area of urban rail transit vehicle base as claimed in claim 8, further comprising a data analysis module, an audible and visual alarm device and a field display device,
the data analysis module is connected with the output end of the interface module and used for acquiring the personnel perception information, judging whether the personnel exist or not according to the personnel perception information, if the personnel do not exist, outputting an alarm signal to the sound-light alarm device, and displaying the personnel identity information corresponding to the alarm signal on the field display device.
10. The system as claimed in claim 9, wherein the data analysis module is connected to the output end of the interface module, and is configured to obtain the driving information of the motor car, and determine whether there is a train or not according to the driving information of the motor car, and if there is a train, output a second alarm signal to the sound and light alarm device for prompting nearby operators.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115641683A (en) * | 2022-12-09 | 2023-01-24 | 四川云控交通科技有限责任公司 | Intelligent monitoring system for highway construction management |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115641683A (en) * | 2022-12-09 | 2023-01-24 | 四川云控交通科技有限责任公司 | Intelligent monitoring system for highway construction management |
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