CN110909020A - Vehicle-mounted contact net dynamic detection system - Google Patents
Vehicle-mounted contact net dynamic detection system Download PDFInfo
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Abstract
The invention discloses a vehicle-mounted contact net dynamic detection system, which comprises vehicle-mounted contact net detection equipment and ground data management equipment; the vehicle-mounted contact network detection equipment comprises an industrial personal computer unit, a geometric measurement module, a wear module, a monitoring module, a positioning module, an arcing module, an attitude compensation module and a communication module; the ground data management equipment comprises a handheld terminal, an offline analysis terminal and a cloud server, the handheld terminal is used for carrying out wireless data transmission and parameter configuration with the vehicle-mounted contact network detection equipment, the offline analysis terminal is used for managing and analyzing the acquired detection data, and the cloud server is used for carrying out backup storage and query on the detection data and the abnormal operation data. The dynamic detection system can be used for intelligently detecting the high-speed running contact network, avoiding manual detection, improving automation and safety, intelligently evaluating and judging the state of the contact network, and providing basis for maintenance decision of operators.
Description
Technical Field
The invention relates to the technical field of contact network detection, in particular to a vehicle-mounted contact network dynamic detection system.
Background
In recent years, urban rail transit has been rapidly developed, and subway light rails have become popular as common vehicles for people to go out daily. The reliability of the subway traction power supply system equipment and the safety of the operation process are important guarantees for the safe operation of the whole subway series. The contact network is the most direct link for providing electric energy to the electric passenger car by the traction power supply system, the current collection quality of the electric passenger car is directly influenced by the state of the contact network, and the detection of the contact network also becomes one of the most important daily maintenance work of the subway company. In the sea city as an example, the mileage of rail transit in the sea city is increasing, the operating line is longer and longer, and increasingly heavy detection and maintenance tasks are faced to the maintenance department. The detection workload will be greatly increased along with the detection workload. If the detection is still manually carried out, the efficiency is low, and phenomena such as misjudgment, missing judgment and the like easily occur, so that hidden dangers are buried for the safety of the rail transit, and the requirements of rapid development of the rail transit cannot be met.
At present, the detection of urban rail transit is mostly carried out in a manual mode, the precision is low, time and labor are consumed, and the efficiency is low. In the face of the development trend that the operation pressure is increasingly tense and the demand is diversified, in order to guarantee the safe operation of operation vehicles, an online monitoring is urgently needed for a contact network in a high-speed operation state, and a more intelligent, rapid and reliable high-end detection technology is adopted, so that the efficiency and the safety of urban rail transit operation are improved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a vehicle-mounted contact network dynamic detection system which can detect a contact network in a high-speed running state, analyze a detection result and find abnormality in time.
The purpose of the invention is realized by adopting the following technical scheme:
a vehicle-mounted contact network dynamic detection system comprises vehicle-mounted contact network detection equipment and ground data management equipment; the vehicle-mounted contact network detection equipment comprises an industrial personal computer unit, a geometric measurement module, a wear module, a monitoring module, a positioning module, an arcing module, an attitude compensation module and a communication module, wherein the geometric measurement module, the wear module, the monitoring module and the communication module are all connected to the industrial personal computer unit through Ethernet buses, and the positioning module, the arcing module and the attitude compensation module are all connected to the industrial personal computer unit through RS485 buses; the ground data management equipment comprises a handheld terminal, an offline analysis terminal and a cloud server, wherein the handheld terminal is used for carrying out wireless data transmission and parameter configuration with vehicle-mounted contact network detection equipment, and the offline analysis terminal is used for managing and analyzing the acquired detection data and mainly comprises a historical database unit, a state evaluation analysis unit, a trend prejudgment unit and an operation and maintenance planning unit; and the cloud server is used for performing backup storage and query on the detection data and the abnormal operation data.
Preferably, the geometric measurement module comprises an area-array camera and a line laser light source which are arranged on the roof of the vehicle, non-contact detection is carried out in a manner of matching with the line laser light source, the line laser light source covers the working interval range of the contact line, the area-array camera acquires the dynamic running image of the contact line, and the geometric parameters of the contact line are calculated; the abrasion module comprises an area-array camera and a line laser light source which are arranged on the roof of the vehicle, non-contact detection is carried out in a mode of matching with the line laser light source, the line laser light source covers the working interval range of the contact line, a high-definition image at the bottom of the contact line is collected by the area-array camera, and abrasion parameters of the contact line are calculated through image analysis; the arc burning module comprises an area-array camera and an arc burning sensor which are arranged on the roof of the vehicle, and is used for collecting electric arc discharge caused by poor contact between a contact network and a pantograph, synchronously triggering the camera to take pictures, and storing and analyzing detection data; the attitude compensation module comprises a laser camera component and an inclination angle sensor which are arranged on the bottom of the vehicle, and is used for carrying out online identification on the self running attitude of the vehicle body and carrying out corresponding correction compensation on the measured geometric measurement data; the positioning module adopts a combined navigation mode of GPS and inertial navigation and FRID, is used for analyzing and calculating the current position information of the vehicle, is bound with the detection data and is used for assisting data analysis and detection relocation; the positioning module is provided with a self-calibration correction unit for eliminating the accumulated error of data; the monitoring module comprises a high-definition area array camera and an LED light source which are arranged on the roof of the vehicle, and is used for acquiring dynamic coupling images of a contact network and a pantograph, recording a video, and superposing time and positioning information on a video picture; the communication module comprises a 4G communication unit and a wireless WIFI router; the handheld terminal adopts a handheld tablet computer; and the off-line analysis terminal adopts a data analysis workstation.
Preferably, when the offline analysis terminal analyzes the obtained detection data, if the data exceeds the limit value of the corresponding detection data, it indicates that the data detected by the corresponding module is abnormal, and sends an alarm signal.
Preferably, when the detected data shows that the data detected by the corresponding module is abnormal, the state analysis and evaluation unit intelligently analyzes the data, the data is contrasted and analyzed by combining the data of the corresponding historical database unit, the trend judgment unit carries out trend pre-judgment and early warning, and finally, the operation and maintenance planning unit provides a corresponding pre-solution for the reference of an operator.
Compared with the prior art, the invention has the beneficial effects that: by adopting the detection system, the defects of low manual detection efficiency, low safety and the like can be overcome, the automatic operation of the detection process is promoted, and the automation level of the device is improved. In addition, by means of ground data management equipment, intelligent evaluation and judgment can be carried out on the state of the contact network, trend prejudgment and early warning can be carried out by combining historical data comparison and analysis, and a basis is provided for maintenance decision-making of operators.
Drawings
Fig. 1 is a schematic diagram of a vehicle-mounted contact network dynamic detection system according to the present invention;
fig. 2 is a schematic diagram of an off-line analysis terminal function unit.
In the figure: 100. vehicle-mounted contact network detection equipment; 110. an industrial personal computer unit; 120. a geometric measurement module; 130. a wear module; 140. a monitoring module; 150. a positioning module; 160. an arcing module; 170. an attitude compensation module; 180. a communication module; 200. a ground data management device; 210. a handheld terminal; 220. an off-line analysis terminal; 230. and a cloud server.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, a vehicle-mounted catenary dynamic detection system includes a vehicle-mounted catenary detection device 100 and a ground data management device 200.
Vehicle-mounted contact net detection equipment
The vehicle-mounted contact network detection device 100 comprises an industrial personal computer unit 110, a geometric measurement module 120, a wear module 130, a monitoring module 140, a positioning module 150, an arc burning module 160, an attitude compensation module 170 and a communication module 180, wherein the geometric measurement module 120, the wear module 130, the monitoring module 140 and the communication module 180 are all connected to the industrial personal computer unit 110 through an Ethernet bus, and the positioning module 150, the arc burning module 160 and the attitude compensation module 170 are all connected to the industrial personal computer unit 110 through an RS485 bus.
The industrial personal computer unit 110 includes a computer having a detection software, and a communication interface is reserved when the software is designed.
The geometric measurement module 120 comprises an area-array camera and a line laser light source which are arranged on the roof of the vehicle, non-contact detection is carried out in a mode of matching with the line laser light source, the line laser light source covers the working interval range of the contact line, the area-array camera acquires the dynamic running image of the contact line, and the geometric parameters of the contact line are calculated.
Specifically, the geometric parameters of the overhead line system detected by the geometric measurement module 120 include a pull-out value and a height value of the overhead line system, and the pull-out value includes a left offset value and a right offset value and a height value of the overhead line system.
In one embodiment, the coordinates of the camera in the pixel coordinate system are converted into coordinate values in the camera coordinate system in combination with the calibration data of the area-array camera, and then the coordinate conversion is adopted to obtain the X/Z coordinate values in the absolute coordinate system, so that the geometric parameters (including the pull-out value and the lead-up value) can be obtained.
The abrasion module 130 comprises an area-array camera and a line laser light source which are arranged on the roof, non-contact detection is carried out in a mode of matching with the line laser light source, the line laser light source covers the working interval range of the contact line, the area-array camera collects high-definition images at the bottom of the contact line, and abrasion parameters of the contact line are calculated through image analysis.
Specifically, the wear parameters of the catenary calculated by the wear module 130 include the width of the worn area on the bottom surface of the catenary.
The monitoring module 140 includes a high-definition area-array camera and an LED light source installed on the roof of the vehicle, and is used for acquiring dynamic coupling images of the overhead line system and the pantograph, recording a video, and superimposing time and positioning information on a video frame.
Specifically, the high-definition area-array camera of the monitoring module 140 collects dynamic coupling images of the overhead line system and the pantograph at a frequency of 30 frames/s, records a video, and superimposes time and positioning information on a video picture.
The positioning module 150 adopts a combined navigation mode of GPS and inertial navigation and FRID, and is used for analyzing and calculating the current position information of the vehicle, binding the current position information with the detection data and assisting data analysis and detection relocation; and the positioning module 150 has a self-calibration correction unit to eliminate the accumulated error of data.
Specifically, the self-calibration correction unit of the positioning module 150 sets RFID tag units at intervals of 30m on the side of the track to calibrate and correct the positioning data, and eliminates the accumulated error of the position deviation between the GPS and the inertial navigation signal.
The arcing module 160 includes an area-array camera and an arcing sensor mounted on the roof of the vehicle, and is used for collecting the electric arcing caused by the contact network and the pantograph when in bad contact, synchronously triggering the camera to take pictures, and storing and analyzing the detection data.
Specifically, the arc sensor of the arc module 160 detects the energy of the ultraviolet arc, and triggers the area-array camera to shoot when detecting a signal.
The attitude compensation module 170 comprises a laser camera component and an inclination angle sensor which are arranged on the bottom of the vehicle, and is used for carrying out online identification on the running attitude of the vehicle body and carrying out corresponding correction compensation on the measured geometric measurement data;
specifically, the laser camera shooting assembly of the attitude compensation module 170 can project linear laser to the side of the steel rail, take pictures, and obtain inclination angle and vertical settlement data of the vehicle body in the operation process through image analysis processing.
The communication module 180 includes a 4G communication unit and a WIFI wireless router. With the development of communication technology, communication modules can be expanded and updated, for example, 5G or even 6G is adopted, so as to improve the communication speed.
Ground data management equipment
The ground data management device 200 comprises a handheld terminal 210, an offline analysis terminal 220 and a cloud server 230, wherein the handheld terminal 210 is used for performing wireless data transmission and parameter configuration with the vehicle-mounted contact network detection device 100, and the offline analysis terminal 220 is used for managing and analyzing the acquired detection data; cloud server 230 is used for backup storage and query of detection data and abnormal operation data.
The handheld terminal 210 is a handheld tablet computer, detection software matched with the industrial personal computer unit 110 is run on the handheld tablet computer, a communication interface is reserved during software design, and data transmission and configuration are completed through a predefined wireless communication protocol.
The offline analysis terminal 220 employs a data analysis workstation. Referring to fig. 2, the offline analysis terminal 220 mainly includes a history database unit, a state evaluation and analysis unit, a trend pre-judging unit, and an operation and maintenance planning unit. When the offline analysis terminal 220 analyzes the obtained detection data, if the data exceeds the limit value of the corresponding detection data, it indicates that the data detected by the corresponding module is abnormal, and sends an alarm signal.
Specifically, when the detected data shows that the data detected by the corresponding module is abnormal, the state analysis and evaluation unit intelligently analyzes the data, the data is compared and analyzed by combining the corresponding historical database unit, the trend judgment unit performs trend pre-judgment and early warning, and finally, the operation and maintenance planning unit provides a corresponding pre-solution for operators to refer to.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a vehicle-mounted contact net dynamic verification system which characterized in that: the detection system comprises vehicle-mounted contact network detection equipment (100) and ground data management equipment (200);
the vehicle-mounted contact network detection equipment (100) comprises an industrial personal computer unit (110), a geometric measurement module (120), a wear module (130), a monitoring module (140), a positioning module (150), an arc burning module (160), an attitude compensation module (170) and a communication module (180), wherein the geometric measurement module (120), the wear module (130), the monitoring module (140) and the communication module (180) are all connected to the industrial personal computer unit (110) through Ethernet buses, and the positioning module (150), the arc burning module (160) and the attitude compensation module (170) are all connected to the industrial personal computer unit (110) through RS485 buses;
the ground data management equipment (200) comprises a handheld terminal (210), an offline analysis terminal (220) and a cloud server (230), wherein the handheld terminal (210) is used for carrying out wireless data transmission and parameter configuration with vehicle-mounted contact network detection equipment (100), and the offline analysis terminal (220) is used for managing and analyzing acquired detection data and comprises a historical database unit, a state evaluation analysis unit, a trend prejudgment unit and an operation and maintenance planning unit; the cloud server (230) is used for performing backup storage and query on the detection data and the abnormal operation data.
2. The vehicle-mounted contact network dynamic detection system according to claim 1, characterized in that:
the geometric measurement module (120) comprises an area-array camera and a line laser light source which are arranged on the roof of the vehicle, non-contact detection is carried out in a manner of matching with the line laser light source, the line laser light source covers the working interval range of the contact line, the area-array camera acquires the dynamic running image of the contact line, and the geometric parameters of the contact line are calculated;
the abrasion module (130) comprises an area-array camera and a line laser light source which are arranged on the roof of the vehicle, non-contact detection is carried out in a mode of matching with the line laser light source, the line laser light source covers the working interval range of the contact line, the area-array camera acquires a high-definition image at the bottom of the contact line, and abrasion parameters of the contact line are calculated through image analysis;
the arcing module (160) comprises an area-array camera and an arcing sensor which are arranged on the roof of the vehicle, and is used for collecting electric arc discharge caused by poor contact between a contact network and a pantograph, synchronously triggering the camera to take pictures, and storing and analyzing detection data;
the attitude compensation module (170) comprises a laser camera component and an inclination angle sensor which are arranged on the bottom of the vehicle, and is used for carrying out online identification on the running attitude of the vehicle body and carrying out corresponding correction compensation on the measured geometric measurement data;
the positioning module (150) adopts a combined navigation mode of GPS and inertial navigation and FRID, is used for analyzing and calculating the current position information of the vehicle, is bound with the detection data and is used for assisting data analysis and detection relocation; the positioning module (150) is provided with a self-calibration correction unit for eliminating the accumulated error of data;
the monitoring module (140) comprises a high-definition area-array camera and an LED light source which are arranged on the roof of the vehicle, and is used for collecting dynamic coupling images of a contact net and a pantograph, recording a video, and superposing time and positioning information on a video picture;
the communication module (180) comprises a 4G communication unit and a wireless WIFI router;
the handheld terminal (210) adopts a handheld tablet computer; the off-line analysis terminal (220) adopts a data analysis workstation.
3. The vehicle-mounted contact network dynamic detection system according to claim 2, characterized in that:
the geometric parameters of the overhead line system detected by the geometric measurement module (120) comprise a pull-out value and a height guide value of the overhead line system, and the pull-out value comprises a left offset value, a right offset value and a height value of the overhead line system.
4. The vehicle-mounted contact network dynamic detection system according to claim 2, characterized in that:
the wear parameters of the catenary calculated by the wear module (130) include a worn zone width of the bottom surface of the contact line.
5. The vehicle-mounted contact network dynamic detection system according to claim 2, characterized in that:
an arc sensor of the arc module (160) detects ultraviolet arc energy, and when a signal is detected, an area-array camera is triggered to shoot.
6. The vehicle-mounted contact network dynamic detection system according to claim 2, characterized in that:
the laser camera shooting assembly of the attitude compensation module (170) can project linear laser to the side face of the steel rail, take pictures, and obtain inclination angle and vertical settlement data of the vehicle body in the operation process through image analysis processing.
7. The vehicle-mounted contact network dynamic detection system according to claim 2, characterized in that:
and the self-calibration correction unit of the positioning module (150) is used for calibrating and correcting positioning data by arranging RFID tag units at the side of the track every 30m, so that the accumulated error of the position deviation of the GPS and the inertial navigation signal is eliminated.
8. The vehicle-mounted contact network dynamic detection system according to claim 2, characterized in that:
the high-definition area-array camera of the monitoring module (140) collects dynamic coupling images of the overhead line system and the pantograph at the frequency of 30 frames/s, records the video, and superimposes time and positioning information on a video picture.
9. The vehicle-mounted contact network dynamic detection system according to claim 1, characterized in that:
when the offline analysis terminal (220) analyzes the obtained detection data, if the data exceeds the limit value of the corresponding detection data, the data detected by the corresponding module is abnormal, and an alarm signal is sent.
10. The vehicle-mounted contact network dynamic detection system of claim 9, characterized in that:
when the detected data display corresponds to the abnormal data detected by the module, the state analysis and evaluation unit intelligently analyzes the data, combines the data comparison and analysis of the corresponding historical database unit, performs trend pre-judgment and early warning by the trend judgment unit, and finally provides a corresponding pre-solution for operators to refer to by the operation and maintenance planning unit.
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| CN112398814B (en) * | 2020-10-26 | 2023-07-04 | 易显智能科技有限责任公司 | Driving behavior data tamper-proof method and device based on big data |
| CN113916293A (en) * | 2021-10-11 | 2022-01-11 | 孙洪茂 | Electric train contact net suspension state and bow net relation detecting system |
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