CN108594032B - Real-time transmission method for online detection alarm of non-contact network - Google Patents
Real-time transmission method for online detection alarm of non-contact network Download PDFInfo
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Abstract
The invention discloses and provides a non-contact net online detection alarm real-time transmission method with high operation efficiency, accurate detection and high response speed. The invention comprises a non-contact type contact net on-line detection device, a transmission device and a wireless signal receiving and transmitting module which are arranged on an electric power operation vehicle; the non-contact type contact net on-line detection device comprises a vehicle-mounted server, a height guiding and hard-point line sensor, an off-line detector, a pantograph display camera, an image distributor and a HUB switch, wherein the height guiding and hard-point line sensor and the off-line detector are connected with the vehicle-mounted server through signals, the pantograph display camera is connected with the vehicle-mounted server through the image distributor and the transmission device through signals, and the transmission device is connected with the vehicle-mounted server through signals of the HUB switch, and the wireless signal receiving and transmitting module is connected with the transmission device through signals. The invention is used for the technical field of dynamic detection of the pantograph and the contact net of the rail transit electric locomotive.
Description
Technical Field
The invention relates to the technical field of dynamic detection of pantographs and overhead contact systems of rail transit electric power operation vehicles (hereinafter referred to as operation vehicles), in particular to a real-time transmission method for online detection alarms of a non-contact overhead contact system.
Background
When the operation vehicle runs, a system formed by the pantograph and the overhead contact system (hereinafter referred to as a pantograph-overhead contact system) is one of media for acquiring electric energy from a traction substation by the train. The load current of the carrier vehicle flows in from the contact point of the pantograph and the overhead contact net, flows out from the contact point of the wheel and the track (wheel rail contact point), and returns to the traction substation through the reflux circuit. The good coupling of the pantograph and the contact net of the operation vehicle plays an important role in the normal operation of the operation vehicle.
At present, the traditional means for detecting the domestic railway contact net adopts the following modes:
1. Manual inspection: through railway skylight point or subway down time, the operation personnel use laser range finder to measure along the line.
2. Contact net detects operation car: the detection equipment is arranged on the roof of the working vehicle to detect the height guiding, the pull-out value and the overrun of the pantograph acceleration, so that the working efficiency is obviously improved.
3. Contact net detection device: the overhead contact system detection device is arranged on the operation vehicle, and is used for detecting the height guiding, the pull-out value and the pantograph acceleration overrun, and the detected data are relatively accurate.
The defects of the detection mode are as follows:
manual inspection: a great deal of manpower and time are needed, the operation efficiency is low, the measurement mode of the manual means is not uniform, the detection means is limited, and the detection omission is possibly caused by fatigue detection of people.
Contact net detects operation car: the operation vehicle can be tested only after the operation vehicle stops running, potential safety hazards possibly existing cannot be found in time, meanwhile, certain differences exist between the operation vehicle and the operation vehicle in design, and the bow net relation of the operation state cannot be truly and accurately reflected.
Contact net detection device: the detection data is imported into the analysis background for analysis processing only after the running of the running vehicle is finished, so that the effect of real-time transmission of the online detection alarm is difficult to achieve.
Disclosure of Invention
The invention aims to solve the technical problem of providing a non-contact net online detection alarm real-time transmission method with high operation efficiency, accurate detection and high response speed.
The technical scheme adopted by the invention is as follows: the method is characterized in that a non-contact type contact net online detection alarm real-time transmission system is applied, and comprises a non-contact type contact net online detection device, a transmission device and a wireless signal receiving and transmitting module, wherein the non-contact type contact net online detection alarm real-time transmission system is arranged on an electric power operation vehicle; the non-contact type contact net on-line detection device comprises a vehicle-mounted server, a height guiding and hard-point line sensor, an off-line detector, a pantograph display camera, an image distributor and a HUB switch, wherein the height guiding and hard-point line sensor and the off-line detector are both in signal connection with the vehicle-mounted server, the pantograph display camera is respectively in signal connection with the vehicle-mounted server and the transmission device through the image distributor, the transmission device is in signal connection with the vehicle-mounted server through the HUB switch, and the wireless signal receiving and transmitting module is in signal connection with the transmission device; the wireless signal receiving and transmitting module is a GPRS module; the GPRS module is provided with an SDK, and the non-contact network online detection alarm real-time transmission system further comprises a cloud platform and a plurality of intelligent terminals in communication connection with the cloud platform, and the GPRS module is communicated with the cloud platform through the Internet of things; the height guiding and hard spot line sensor realizes height guiding detection and hard spot detection, wherein the height guiding detection is that a pantograph is lifted to a contact net position, the height of a track to the contact net is measured, the hard spot detection is that the acceleration of the pantograph in the vertical direction is calculated according to the height guiding variation, and the position with larger acceleration is detected as a hard spot; the off-line detector comprises an optical fiber, an ultraviolet photoelectric sensor and a data processing module, wherein an arcing light signal is transmitted to the ultraviolet photoelectric sensor by the optical fiber, the optical signal is converted into an electric signal by the ultraviolet photoelectric sensor and is sent to the data processing module, and the data processing module is in signal connection with the vehicle-mounted server; the method is characterized in that: the non-contact network online detection alarm real-time transmission method comprises the following steps:
a. The transmission device is arranged in the electric power operation vehicle and is communicated with the non-contact net on-line detection device, the pantograph display camera adopts a high-definition industrial camera and monitors the whole process of the operation state of the pantograph net in real time, the monitoring video has the functions of real-time display, playback and suspension, and simultaneously has the functions of intercepting photos exceeding a threshold value or arcing of the pantograph net and inquiring historical data; the non-contact type contact net online detection device monitors and analyzes the detection images of the height guiding and hard point line sensor and the off-line detector at the same time, so that the alarm of the height guiding, hard point exceeding a threshold value or off-line arcing is transmitted to the transmission device;
b. The GPRS module is connected with the transmission device through a network cable, is provided with an SDK capable of being connected with the Internet of things quickly, establishes a bidirectional safety channel between the transmission device and the Internet of things, and realizes that the transmission device is connected into the cloud platform;
c. the intelligent terminal is in butt joint with the cloud platform, and can report the alarm information of the staff exceeding the management value in real time.
Further, the transmission device is connected with the vehicle-mounted server on the non-contact net on-line detection device through the HUB switch by using a network cable, the vehicle-mounted server is used as a server, the transmission device is used as a client, and the transmission device and the vehicle-mounted server mutually interact data by adopting a TCP/IP communication protocol.
Further, when the detection exceeds the threshold value, the vehicle-mounted server transmits detection data information to the transmission device through Ethernet communication, and the transmission of the detection data is only performed when the detection data exceeds the threshold value, and data is not transmitted at ordinary times; the high-altitude detection processing is carried out in a second period, and the main exceeding management value of the transmission device is uploaded in the second range, wherein the data format content comprises the time, mileage, speed, interval, upright post, high-altitude detection value and left management value range of detected data; the hard spot detection processing is carried out in a second period, and the transmission device is informed of the main exceeding management value in the second range, wherein the data format content comprises the time, mileage, speed, interval, upright post, hard spot detection value G and left management value + -G for detecting data; the off-line detection processing is to transmit an arcing light signal to the ultraviolet photoelectric sensor by using the optical fiber, convert the optical signal into an electric signal by the ultraviolet photoelectric sensor and send the electric signal to the data processing module, the data processing module is connected with the vehicle-mounted server by signals, and the system detects that the off-line voltage value exceeds the specified duration and reports the off-line voltage value to the transmission device.
Further, the transmission device carries out synchronous processing of detection data and pantograph video; the display screen of the transmission device displays the pantograph image in real time, and the transmission device has the functions of video storage, pause and playback at different speeds; the display screen of the transmission device displays the detection data; the hard disk of the transmission device stores pantograph images and detection data for subsequent data mining;
Further, the GPRS module is connected with the transmission device through a network cable and is provided with an SDK capable of being connected with the Internet of things quickly, and a bidirectional safety communication channel between the transmission device and the Internet of things is established; the internet of things provides a device communication caching mechanism, decouples the device from the application, and solves the problem of unreliable pain points of communication under the condition of unstable wireless network; the internet of things is communicated with the cloud platform through a rule engine, so that the transmission device can transmit data to the cloud platform in a transparent way;
Further, the cloud platform is docked on the intelligent terminal, the data reported in real time can be checked in real time, the field photo and the query history data at the moment of occurrence are logged in the cloud platform remotely, the fault information is comprehensively compared and statistically analyzed, and the equipment state is diagnosed, so that an accurate overhaul scheme and spare part strategies are provided for the follow-up.
The beneficial effects of the invention are as follows: the invention obtains the hard point or the altitude exceeding management value of the bow net contact and the offline arcing voltage detection result, simultaneously displays and stores the bow net running state, and locally intercepts the photo at the alarming moment. And establishing two-way communication with the Internet of things through the GPRS module, uploading data to the cloud platform, and simultaneously sending alarm information to an engineer. The engineer can view the photo of the occurrence of the alarm at the intelligent terminal, thereby providing an accurate maintenance scheme and spare part policy. In summary, the non-contact type contact net online detection alarm real-time transmission system is based on safe and reliable data transmission between devices, maintains the whole network department, adopts the advanced reliable cloud platform, has low transmission communication network cost, can cope with frequent network changes, completes data acquisition, processing and statistical analysis of an arch net system, guides device maintenance management, and ensures reliable operation of an operation vehicle.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a communication mode between a transmission device and an intelligent terminal;
fig. 3 is a flow chart of communication data between the transmission device and the in-vehicle server.
Detailed Description
As shown in fig. 1 to 3, a real-time transmission system for online detection and alarm of a non-contact network comprises a non-contact network online detection device 1, a transmission device 2 and a wireless signal receiving and transmitting module 3 which are arranged on an electric power operation vehicle; the non-contact net on-line detection device 1 comprises a vehicle-mounted server 11, a height guiding and hard-point line sensor 12, an off-line detector 13, a pantograph display camera 14, an image distributor 15 and a HUB switch 16, wherein the height guiding and hard-point line sensor 12 and the off-line detector 13 are in signal connection with the vehicle-mounted server 11, the pantograph display camera 14 is in signal connection with the vehicle-mounted server 11 and the transmission device 2 respectively through the image distributor 15, the transmission device 2 is in signal connection with the vehicle-mounted server 11 through the HUB switch 16, and the wireless signal receiving and transmitting module 3 is in signal connection with the transmission device 2. In this embodiment, the wireless signal transceiver module 3 is a GPRS module.
In this embodiment, the GPRS module is provided with an SDK, and the non-contact type contact network online detection alarm real-time transmission system further includes a cloud platform 4 and a plurality of intelligent terminals 6 communicatively connected to the cloud platform 4, and the GPRS module communicates with the cloud platform 4 through the internet of things 5.
In this embodiment, the height guiding and hard spot line sensor 12 realizes height guiding detection and hard spot detection, wherein the height guiding detection is that a pantograph is lifted to a contact net position, the height from a track to the contact net is measured, the hard spot detection is that the acceleration of the pantograph in the vertical direction is measured in the lifting or descending process, the gravity acceleration is calculated according to the change of the height guiding, and the position with larger acceleration is detected as the hard spot; the off-line detector 13 comprises an optical fiber, an ultraviolet photoelectric sensor and a data processing module, wherein an arcing light signal is transmitted to the ultraviolet photoelectric sensor by the optical fiber, the optical signal is converted into an electric signal by the ultraviolet photoelectric sensor and is sent to the data processing module, and the data processing module is in signal connection with the vehicle-mounted server 11.
The method for transmitting the non-contact net online detection alarm in real time comprises the following steps:
a. The transmission device 2 is arranged in the electric power operation vehicle, the transmission device 2 is communicated with the non-contact net on-line detection device 1, the pantograph display camera 14 adopts a high-definition industrial camera and monitors the operation state of the pantograph net in real time in the whole course, and the monitoring video has the functions of real-time display, playback and pause, and simultaneously has the functions of intercepting photos exceeding a threshold value or arcing of the pantograph net and inquiring historical data; the non-contact type contact net on-line detection device 1 uses the detection images of the height guiding and hard point line sensor 12 and the off-line detector 13 to carry out analysis processing while monitoring, so as to realize the transmission of the alarm of the height guiding, hard point exceeding a threshold value or off-line arcing to the transmission device 2;
b. The GPRS module is connected with the transmission device 2 through a network cable, is provided with an SDK capable of being connected with the Internet of things quickly, establishes a bidirectional safety channel between the transmission device and the Internet of things 5, and realizes that the transmission device is connected into the cloud platform 4;
c. the intelligent terminal 6 is in butt joint with the cloud platform 4, and can report the alarm information of the staff exceeding the management value in real time.
In this embodiment, the transmission device 2 is connected to the vehicle-mounted server 11 on the non-contact catenary online detection device 1 by using a network cable through the HUB switch 16, the vehicle-mounted server 11 is used as a server, the transmission device 2 is used as a client, and the transmission device 2 and the vehicle-mounted server 11 implement data interaction by adopting a TCP/IP communication protocol.
In this embodiment, when the detection exceeds the threshold, the vehicle-mounted server 11 sends the detection data to the transmission device 2 through ethernet communication, and the detection data is sent only when the detection data exceeds the threshold, and the data is not transmitted at ordinary times; the elevation detection processing is performed in a period of 1 second, and the management value which is mainly exceeded by the transmission device 2 is uploaded within a range of 1 second, and the data format content comprises the time, mileage, speed, interval, upright post, elevation detection value and left management value range of detected data; the hard spot detection processing is performed in a period of 1 second, and the transmission device 2 is notified of the main exceeding management value within a range of 1 second, and the data format content comprises the time, mileage, speed, section, upright post, hard spot detection value G and left management value + -5G of the detected data; the off-line detection process is to transmit the arcing light signal to the ultraviolet photoelectric sensor by using the optical fiber, convert the optical signal into an electrical signal by the ultraviolet photoelectric sensor and send the electrical signal to the data processing module, the data processing module is in signal connection with the vehicle-mounted server 11, and the system detects that the off-line voltage value exceeds the specified duration and reports the off-line voltage value to the transmission device 2.
In this embodiment, the transmission device 2 performs synchronous processing of detection data and pantograph video; the display screen of the transmission device 2 displays pantograph images in real time, and the transmission device 2 has functions of video storage, pause and playback at different speeds; the display screen of the transmission device 2 displays the detection data; the hard disk of the transmission device 2 stores pantograph images and detection data for subsequent data mining;
in this embodiment, the GPRS module is connected to the transmission device 2 through a network cable and installs an SDK capable of being quickly connected to the internet of things, so as to establish a bidirectional secure communication channel between the transmission device and the internet of things; the internet of things provides a device communication caching mechanism, decouples the device from the application, and solves the problem of unreliable pain points of communication under the condition of unstable wireless network; the internet of things is communicated with the cloud platform through a rule engine, so that the transmission device can transmit data to the cloud platform in a transparent way;
In the embodiment, the cloud platform is docked on the intelligent terminal, so that data reported in real time can be checked in real time, and on-site photos and historical data are queried at the moment of occurrence, thereby providing accurate maintenance schemes and spare part strategies for follow-up.
The invention is used in the technical field of dynamic detection of pantographs and contact networks of rail transit operation vehicles.
While the embodiments of this invention have been described in terms of practical aspects, they are not to be construed as limiting the meaning of this invention, and modifications to the embodiments and combinations with other aspects thereof will be apparent to those skilled in the art from this description.
Claims (4)
1. The method is applied to a non-contact type contact net online detection alarm real-time transmission system, and the non-contact type contact net online detection alarm real-time transmission system comprises a non-contact type contact net online detection device (1), a transmission device (2) and a wireless signal receiving and transmitting module (3) which are arranged on an electric power operation vehicle; the non-contact type contact net online detection device (1) comprises a vehicle-mounted server (11), a height guiding and hard-point line sensor (12), an offline detector (13), a pantograph display camera (14), an image distributor (15) and a HUB switch (16), wherein the height guiding and hard-point line sensor (12) and the offline detector (13) are both in signal connection with the vehicle-mounted server (11), the pantograph display camera (14) is respectively in signal connection with the vehicle-mounted server (11) and the transmission device (2) through the image distributor (15), the transmission device (2) is in signal connection with the vehicle-mounted server (11) through the HUB switch (16), and the wireless signal transceiver module (3) is in signal connection with the transmission device (2); the wireless signal receiving and transmitting module (3) is a GPRS module; the GPRS module is provided with an SDK, the non-contact network online detection alarm real-time transmission system further comprises a cloud platform (4) and a plurality of intelligent terminals (6) which are in communication connection with the cloud platform (4), and the GPRS module is communicated with the cloud platform (4) through an Internet of things (5); the height guiding and hard point line sensor (12) realizes height guiding detection and hard point detection, wherein the height guiding detection is that a pantograph is lifted to a contact net position, the height from a track to the contact net is measured, the hard point detection is that the acceleration of the pantograph in the vertical direction is calculated according to the height guiding variation, and the position with larger acceleration is detected as a hard point; the off-line detector (13) comprises an optical fiber, an ultraviolet photoelectric sensor and a data processing module, wherein an arcing light signal is transmitted to the ultraviolet photoelectric sensor by utilizing the optical fiber, the optical signal is converted into an electric signal by the ultraviolet photoelectric sensor and is sent to the data processing module, and the data processing module is in signal connection with the vehicle-mounted server (11); the method is characterized in that: the non-contact network online detection alarm real-time transmission method comprises the following steps:
a. The transmission device (2) is arranged in the electric power operation vehicle, the transmission device (2) is communicated with the non-contact net online detection device (1), the pantograph display camera (14) adopts a high-definition industrial camera and monitors the operation state of the pantograph in real time in the whole course, and the monitoring video has the functions of real-time display, playback and pause and simultaneously has the functions of intercepting photos exceeding a threshold value or arcing of the pantograph and inquiring historical data; the non-contact net online detection device (1) uses detection images of the height guiding and hard point line sensor (12) and the offline detector (13) to monitor and analyze simultaneously, so as to realize the transmission of the alarm of the height guiding, hard point exceeding a threshold value or offline arcing to the transmission device (2);
b. The GPRS module is connected with the transmission device (2) through a network cable, an SDK capable of being connected with the Internet of things rapidly is installed, a bidirectional safety channel between the transmission device and the Internet of things (5) is established, and the transmission device is connected into the cloud platform (4);
c. The intelligent terminal (6) is in butt joint with the cloud platform (4) and can report the alarm information of the staff exceeding the management value in real time.
2. The non-contact network online detection alarm real-time transmission method according to claim 1, wherein the method comprises the following steps: the transmission device (2) is connected with the vehicle-mounted server (11) on the non-contact network online detection device (1) through the HUB switch (16) by using a network cable, the vehicle-mounted server (11) is used as a server, the transmission device (2) is used as a client, and the transmission device (2) and the vehicle-mounted server (11) mutually interact data by adopting a TCP/IP communication protocol.
3. The non-contact network online detection alarm real-time transmission method according to claim 1, wherein the method comprises the following steps: when the detection exceeds the threshold value, the vehicle-mounted server (11) transmits detection data information to the transmission device (2) through Ethernet communication, and the transmission of the detection data is only carried out when the detection data exceeds the threshold value and data is not transmitted at ordinary times; the height guiding detection processing is carried out in a period of 1 second, and the management value which is mainly exceeded by the transmission device (2) is uploaded within a range of 1 second, and the data format content comprises the time, mileage, speed, interval, upright post, height guiding detection value and left management value range of detected data; the hard spot detection processing is performed in a period of 1 second, and the transmission device (2) is informed of the main exceeding management value within the range of 1 second, and the data format content comprises the time, mileage, speed, interval, upright post, hard spot detection value G and left management value +/-5G of detected data; the off-line detection processing is to transmit an arcing light signal to the ultraviolet photoelectric sensor by utilizing the optical fiber, convert the optical signal into an electric signal through the ultraviolet photoelectric sensor and send the electric signal to the data processing module, the data processing module is in signal connection with the vehicle-mounted server (11), and the system detects that the off-line voltage value exceeds the specified duration and reports the off-line voltage value to the transmission device (2).
4. The non-contact network online detection alarm real-time transmission method according to claim 1, wherein the method comprises the following steps:
the transmission device (2) carries out synchronous processing of detection data and pantograph video; the display screen of the transmission device (2) displays pantograph images in real time, and the transmission device (2) has functions of video storage, pause and playback at different speeds; the display screen of the transmission device (2) displays detection data; the hard disk of the transmission device (2) stores pantograph images and detection data for subsequent data mining;
the GPRS module is connected with the transmission device (2) through a network cable, is provided with an SDK capable of being rapidly connected with the Internet of things, and establishes a bidirectional safety communication channel between the transmission device and the Internet of things; the internet of things provides a device communication caching mechanism, decouples the device from the application, and solves the problem of unreliable pain points of communication under the condition of unstable wireless network; the internet of things is communicated with the cloud platform through a rule engine, so that the transmission device can transmit data to the cloud platform in a transparent way;
The cloud platform is docked on the intelligent terminal, the data reported in real time can be checked in real time, the field photo and the query history data at the moment of occurrence are remotely logged in the cloud platform, the fault information is comprehensively compared and statistically analyzed, and the equipment state is diagnosed, so that an accurate overhaul scheme and spare part strategies are provided for the follow-up.
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| CN201810012554.1A CN108594032B (en) | 2018-01-05 | 2018-01-05 | Real-time transmission method for online detection alarm of non-contact network |
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| CN112770043B (en) * | 2019-11-06 | 2022-09-13 | 中国铁道科学研究院集团有限公司 | Bow net video acquisition device and bow net video processing system |
| CN111323683B (en) * | 2020-03-23 | 2023-04-21 | 中铁电气化局集团有限公司 | Arcing detection system, arcing detection method, arcing detection device and computer equipment |
| CN112067056A (en) * | 2020-09-15 | 2020-12-11 | 北京锦鸿希电信息技术股份有限公司 | Contact net detection device, method and device and computer readable storage medium |
| CN112946441A (en) * | 2021-04-01 | 2021-06-11 | 中车青岛四方机车车辆股份有限公司 | Pantograph monitoring system for vehicle and motor train unit |
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