CN111612109A - Automatic checking system and method for running distance and speed of track equipment - Google Patents
Automatic checking system and method for running distance and speed of track equipment Download PDFInfo
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- CN111612109A CN111612109A CN202010408477.9A CN202010408477A CN111612109A CN 111612109 A CN111612109 A CN 111612109A CN 202010408477 A CN202010408477 A CN 202010408477A CN 111612109 A CN111612109 A CN 111612109A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
Abstract
The invention relates to an automatic checking system and method for the running distance and speed of a track device, wherein the automatic checking system for the running distance and speed of the track device comprises an FRID electronic tag or a signal transmitter for transmitting signals, an FRID receiver for receiving signals of the FRID electronic tag, and a control host PLC for processing running detection data, data communication is realized between the FRID receiver and the FRID electronic tag or the signal transmitter, the FRID receiver is connected with a port of the control host PLC, collected data are transmitted to the control host PLC for processing, and errors of the running distance and speed are automatically output and detected or checked. The technical scheme of the invention is simple and easy to realize, and solves the problem that the automatic control precision of other mechanisms of the track maintenance equipment is reduced or does not reach the standard due to the error of the travel distance at present.
Description
Technical Field
The invention relates to the technical field of large-scale railway maintenance equipment, in particular to an automatic checking system and an automatic checking method for the running distance and the speed of track equipment.
Background
In the prior art, the chinese patent application with publication number CN103465938A discloses a fast and accurate positioning device and a positioning method for rail transit vehicles, wherein the positioning device comprises a laser displacement sensor, a pull rope type displacement sensor, a rail vehicle traveling distance detection unit and a synchronous acquisition and data processing unit; according to the scheme, the distance between a vehicle and a track is detected through a vehicle-mounted laser displacement sensor, a guy rope type displacement sensor is used for detecting a yaw angle generated when the vehicle advances along the track direction, the vehicle traveling distance is obtained by means of a wheel axle pulse sensor, and finally vehicle yaw angle characteristic data and track characteristic data are obtained through calculation of a vehicle-mounted data acquisition processing module. The Chinese patent application with the publication number of CN102069824A discloses a positioning device and a method for rail transit vehicles, wherein the positioning device comprises a laser displacement sensor, a rail vehicle traveling distance detection unit and a synchronous acquisition and data processing unit; according to the scheme, the distance between a vehicle and a track is detected through vehicle-mounted laser displacement sensors, the vehicle traveling distance is obtained by means of the output of a wheel axle pulse sensor or two vehicle-mounted laser displacement sensors, and finally, characteristic data of the track is obtained through a vehicle-mounted data acquisition and processing module; and matching the acquired track characteristic data with historical data of the track characteristics to realize high-precision absolute or relative positioning. The chinese utility model patent with publication number CN208488672U provides a walking control system and a carrying full closed-loop control system, which comprises a PLC control device, a servo driver, a servo motor and a bar code positioning unit; the scheme is used for solving the problem that the relative sliding phenomenon is generated when the walking wheels start and brake on the track, so that the deviation between the rotation distance of the servo motor and the actual walking distance is caused. Chinese patent publication No. CN109664920A discloses a train position acquisition method and apparatus in RM mode, which is used to update the dynamic position of the train in real time, and after the train obtains initial positioning, the train keeps the position effective in RM mode all the time, and when passing through the turnout area, the train position can be calculated correctly, and the train position is guaranteed to be accurate. Chinese patent application publication No. CN103061219A discloses an automatic inspection method and device for fastening state of railway elastic strip fastener, which is used to realize positioning of railway fastener, integrity inspection of railway elastic strip fastener, automatic detection of fastening state of railway elastic strip fastener, recording detailed information of railway fastener, and alarm of fastening state of railway elastic strip fastener.
The current railway traffic volume constantly increases, speed constantly improves for the track direction of railway line: the left and right horizontal, front and back height are easy to have deviation. The deviation is eliminated, so that the track reaches the size required by the line maintenance rule, and the key for ensuring the good running of the railway line is realized.
The track maintenance equipment is provided with a walking sensor according to the operation requirement, detects walking data, transmits the data to a control system for calculation, and outputs the walking speed and distance of the equipment. However, the error of the output data is large due to the reasons of the direction deviation of the track, the running friction of the detection wheel, the jolt of the detection wheel mounting bracket in the running process, the contact condition of the detection wheel and the track, the foreign matter of the track and the like, so that the effect of the maintenance operation is influenced to a certain extent.
The current equipment generally adopts a combination mode of a walking sensor (encoder) and an on-orbit detection sensor (proximity switch) to detect the walking distance and the speed of the equipment.
The on-track sensor and the walking sensor are arranged on the same support, and the mechanism can be retracted through the hydraulic lifting cylinder. When the signal of the on-track sensor is a true value, the detection wheel (the wheel provided with the walking sensor) is lowered to the detection position; when the signal of the on-track sensor is a false value, the detection wheel is separated from the detection position.
The problem of the size of the detection wheel, the self weight of the mounting bracket and the like is easily caused during operation, so that the phenomenon of off-orbit or derailment is easily caused. When the vehicle travels past the position of the triangular pit, the error of the detected data is large. Due to the influence of the self friction coefficient of the detection wheel and the elastic action of the hydraulic cylinder of the mounting bracket, the error accumulation of the long-distance running detection data is large. The error of the running distance has certain influence on the automatic control precision of other mechanisms of the equipment.
Therefore, in order to further improve the field operation effect of the railway maintenance equipment and better serve the maintenance and repair of the railway line, an accurate detection method for the running distance and speed of the rail equipment is provided, the current related technical problems are solved, and the improvement of the equipment performance is particularly important.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides an automatic checking system and method for the running distance and speed of track equipment, which solve the problem that the automatic control precision of other mechanisms of track maintenance equipment is reduced or does not reach the standard due to the error of the running distance at present.
In order to achieve the above object, the present invention adopts the following technical solutions.
The invention firstly provides an automatic checking system for the running distance and speed of track equipment, which comprises a controller, a signal source and a receiver; the signal source comprises an FRID electronic tag or a signal transmitter for transmitting signals, and is arranged in a railway line section; the receiver comprises an FRID receiver for receiving FRID electronic tag signals, and the FRID receiver is arranged on the track maintenance equipment; the controller comprises a control host PLC for processing walking detection data; the receiver is connected with the port of the controller, transmits the acquired data to the controller for processing, and automatically outputs the error of detecting or checking the running distance and the speed.
Preferably, the number of the signal sources is more than or equal to 2.
In any of the above solutions, preferably, the plurality of signal sources are sequentially disposed on sleepers of the track in a running direction of the track maintenance device in the section of the railway track.
In any of the above technical solutions, it is preferable that the number of receivers is greater than or equal to 1.
The invention also provides an automatic checking method for the running distance and the speed of the track equipment, which adopts the automatic checking system for the running distance and the speed of the track equipment, and the method comprises the following steps:
3 FRID electronic tags are arranged in a railway line section, 1 FRID receiver is arranged on track maintenance equipment, and a control host PLC is arranged;
setting the vertical distance between the FRID electronic tag and the FRID receiver as d3, the horizontal distances between the adjacent FRID electronic tags as d1 and d2, d1 being a constant value, d2 being a constant value,
when the track maintenance equipment passes through the FRID electronic tag, the FRID receiver respectively collects 3 FRID electronic tag signals and transmits the signals to the control host PLC, the control host PLC performs data processing and logic judgment, and errors of data detected by the distance sensor and an automatic checking system of the running distance and speed of the track maintenance equipment are automatically output.
In any of the above embodiments, d1 ═ d2 is preferred, so that the measurement number is more accurate.
In any of the above technical solutions, preferably, when the track maintenance equipment passes through the rfid tag I of the detection section, the rfid tag signal is detected, and at this time, the control host PLC records that the current time is T1, the data of the on-vehicle running encoder of the track maintenance equipment is L1, and the vehicle body of the track maintenance equipment continues to move forward.
In any of the above technical solutions, preferably, when the track maintenance equipment passes through the rfid tag II of the detection section, the rfid tag signal is detected, and at this time, the control host PLC records that the current time is T2, the data of the on-vehicle running encoder of the track maintenance equipment is L2, and the vehicle body of the track maintenance equipment continues to move forward.
In any of the above technical solutions, preferably, when the track maintenance equipment passes through the rfid tag III of the detection section, the rfid tag signal is detected, and at this time, the control host PLC records that the current time is T3, the data of the on-vehicle running encoder of the track maintenance equipment is L3, and the vehicle body of the track maintenance equipment continues to move forward.
In any of the above-described embodiments, it is preferable that the detection section travel distance error E is detected1(d1+ d2) - (L3-L1), average the run of the detection section
According to the running distance error E1While comparing the average velocity V1Vehicle instant speed V with track maintenance equipment0And obtaining the difference of the detection wheels, and judging whether the vehicle detection wheels of the track maintenance equipment skid or not according to the comparison result.
The key point of the technical scheme of the invention is as follows: a signal source (FRID electronic tag or signal transmitter) is arranged on a sleeper or a rail, a receiver (FRID receiver) is arranged on track maintenance equipment, and data processing is carried out through a PLC control system of a control host to complete the execution of the whole technical scheme. The number of the FRID electronic tags or the number of the signal transmitters is more than or equal to 2, which are similar to the technical scheme of the invention. The number of the FRID receivers arranged on the single track maintenance device is more than or equal to 1, which is similar to the technical scheme of the invention. The data collected by the FRID receiver is processed by a PLC control system of the host computer or processed by similar products such as a circuit board, an electronic circuit and the like, which are similar to the technical scheme of the invention. The technical scheme of the invention is suitable for all maintenance equipment which needs to detect or verify the running distance and the speed error on the rail or the contact type road.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects: the detection data error caused by friction slip between the detection wheel and the rail or other reasons can be effectively solved. When the error is large, the real running distance and speed of the track maintenance equipment cannot be represented, and the calculation results of other systems of the whole vehicle are influenced. The technical scheme of the invention can effectively avoid data errors caused by poor contact between the detection wheel and the rail, ensure the truth and effectiveness of data and reduce errors.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of rfid electronic tag setup of a preferred embodiment of the automatic track equipment distance and speed verification method according to the present invention;
fig. 2 is a schematic diagram of the FRID receiver setup of the embodiment shown in fig. 1 of the automatic track equipment distance and speed verification method according to the present invention.
Reference numerals: the track maintenance system comprises a track 1, sleepers 2, FRID electronic tags 3, a track maintenance equipment vehicle body 4, an FRID receiver 5, horizontal distances d1 and d2 of adjacent FRID electronic tags, and a vertical distance d3 between the FRID electronic tags and the FRID receiver.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to overcome the problems existing in the prior art of checking the running distance and the speed of the track maintenance equipment, the embodiment of the invention provides an automatic checking system and method for the running distance and the speed of the track maintenance equipment, and the system and the method can be used for solving the problem that the automatic control precision of other mechanisms of the track maintenance equipment is reduced or does not reach the standard due to the error of the running distance at present.
The automatic verification system and method of the present embodiment are described in detail below with reference to fig. 1 to 2.
The automatic checking system for the running distance and speed of the track equipment in the embodiment comprises: the FRID electronic tag 3 is used for transmitting signals and is arranged on a railway line section; the FRID receiver 5 is used for receiving signals of the FRID electronic tag 3 and arranged on the track maintenance equipment; and the control host PLC is used for processing walking detection data. The number of the rfid tags 3 may be 3, and the 3 rfid tags 3 are sequentially disposed on the sleepers 2 of the track 1 along the running direction of the track maintenance equipment in the section of the railway track. The set number of rfid receivers 5 may be 1.
Realize data communication between 1 FRID receiver 5 and 3 FRID electronic tags 3, FRID receiver 5 is connected with control host computer PLC port, handles data transmission to control host computer PLC control system with gathering, and the error of automatic output track maintenance of equipment detection or check-up working distance and speed.
According to the automatic checking system for the traveling distance and the speed of the track equipment, the following scheme is adopted in the automatic checking method for the traveling distance and the speed of the track equipment:
3 FRID electronic tags 3 are arranged in a railway line section, 1 FRID receiver 5 is arranged on track maintenance equipment, and a control host PLC is arranged; setting FRID electronic tag and FRID receiverThe vertical distance is d3, the horizontal distances between adjacent FRID tags are d1 and d2, d1 is a constant value, d2 is a constant value,
when the track maintenance equipment passes through the FRID electronic tag 3, the FRID receiver 5 respectively collects 3 signals of the FRID electronic tag 3 and transmits the signals to the control host PLC, the control host PLC performs data processing and logic judgment, and errors of data detected by the distance sensor and an automatic checking system of the running distance and speed of the track equipment are automatically output.
In order to make the measurement more accurate, the method for automatically checking the running distance and speed of the track equipment described in this embodiment is proposed to make d1 equal to d 2.
When the track maintenance equipment passes through the detection section FRID electronic tag I, the FRID electronic tag signal is detected, at the moment, the current time is T1 and the data of the on-board running encoder of the track maintenance equipment is L1 recorded by the control host PLC, and the track maintenance equipment vehicle body 4 continues to advance.
When the track maintenance equipment passes through the detection section FRID electronic tag II, the FRID electronic tag signal is detected, at the moment, the current time is T2 and the data of the on-board running encoder of the track maintenance equipment is L2 recorded by the control host PLC, and the track maintenance equipment vehicle body 4 continues to advance.
When the track maintenance equipment passes through the detection section FRID electronic tag III, the FRID electronic tag signal is detected, at the moment, the current time is T3 and the data of the on-board running encoder of the track maintenance equipment is L3 recorded by the control host PLC, and the track maintenance equipment vehicle body 4 continues to advance.
Error of travel distance E of detection section1(d1+ d2) - (L3-L1), average the run of the detection section
According to the running distance error E1While comparing the average velocity V1Vehicle instant speed V with track maintenance equipment0And obtaining the difference of the detection wheels, and judging whether the vehicle detection wheels of the track maintenance equipment skid or not according to the comparison result.
In the automatic checking system and method for the running distance and speed of the track equipment, the rfid radio frequency identification electronic tag or the signal transmitter is arranged on the sleeper or the rail, the receiver is arranged on the track maintenance equipment, and the PLC control system performs data processing to complete the execution of the whole set of technical scheme. The number of the FRID electronic tags is more than or equal to 2, which are similar to the scheme of the invention. The number of the receivers arranged on the single track maintenance device is more than or equal to 1, and the method is similar to the scheme of the invention. The data collected by the receiver is processed by a PLC control system or processed by similar products such as a circuit board and an electronic circuit, which are similar to the scheme of the embodiment. The scheme of the embodiment is suitable for all equipment which needs to detect or verify the running distance and the speed error on the rail or the contact type road.
By adopting the system and the method for automatically checking the running distance and the speed of the track equipment, the detection data error caused by friction and slippage between the detection wheel and the rail or other reasons can be effectively solved. When the error is large, the real running distance and speed of the track maintenance equipment cannot be represented, and the calculation results of other systems of the whole vehicle are influenced. The technical scheme of the invention can effectively avoid data errors caused by poor contact between the detection wheel and the rail, ensure the truth and effectiveness of data and reduce errors.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention; the above description is only for the specific embodiment of the present invention, and is not intended to limit the scope of the present invention; any modification, equivalent replacement, improvement and the like of the technical solution of the present invention by a person of ordinary skill in the art without departing from the design spirit of the present invention shall fall within the protection scope determined by the claims of the present invention.
Claims (10)
1. An automatic calibration system for the running distance and speed of track equipment comprises a controller, a signal source and a receiver, and is characterized in that: the signal source comprises an FRID electronic tag or a signal transmitter for transmitting signals, and is arranged in a railway line section; the receiver comprises an FRID receiver for receiving FRID electronic tag signals, and the FRID receiver is arranged on the track maintenance equipment; the controller comprises a control host PLC for processing walking detection data; the receiver is connected with the port of the controller, transmits the acquired data to the controller for processing, and automatically outputs the error of detecting or checking the running distance and the speed.
2. The system for automatically verifying distance and speed traveled by a rail device of claim 1, wherein: the number of the signal sources is more than or equal to 2.
3. The system for automatically verifying distance and speed traveled by a rail device of claim 2, wherein: the signal sources are arranged on sleepers of the track in sequence along the running direction of the track maintenance equipment in a railway track section.
4. The system for automatically verifying distance and speed traveled by a rail device of claim 1, wherein: the number of the receivers is more than or equal to 1.
5. An automatic verification method for the running distance and speed of a track device, which adopts the automatic verification system for the running distance and speed of the track device as claimed in any one of claims 1 to 4, and is characterized in that:
3 FRID electronic tags are arranged in a railway line section, 1 FRID receiver is arranged on track maintenance equipment, and a control host PLC is arranged;
setting the vertical distance between the FRID electronic tag and the FRID receiver as d3, the horizontal distances between the adjacent FRID electronic tags as d1 and d2, d1 being a constant value, d2 being a constant value,
when the track maintenance equipment passes through the FRID electronic tag, the FRID receiver respectively collects 3 FRID electronic tag signals and transmits the signals to the control host PLC, the control host PLC performs data processing and logic judgment, and errors of data detected by the distance sensor and an automatic checking system of the running distance and speed of the track maintenance equipment are automatically output.
6. The method for automatically verifying the running distance and speed of a track device according to claim 5, wherein: d1 is d2, so that the measurement quantity is more accurate.
7. The method for automatically verifying the running distance and speed of a track device according to claim 6, wherein: when the track maintenance equipment passes through the detection section FRID electronic tag I, the FRID electronic tag signal is detected, the current time is T1 and the data of the on-board running encoder of the track maintenance equipment is L1 recorded by the control host PLC, and the vehicle body of the track maintenance equipment continues to move forward.
8. The method for automatically verifying the running distance and speed of a track device according to claim 7, wherein: when the track maintenance equipment passes through the detection section FRID electronic tag II, the FRID electronic tag signal is detected, the current time is T2 and the data of the on-board running encoder of the track maintenance equipment is L2 recorded by the control host PLC, and the vehicle body of the track maintenance equipment continues to move forward.
9. The method for automatically verifying distance and speed traveled by a rail device according to claim 8, wherein: when the track maintenance equipment passes through the detection section FRID electronic tag III, the FRID electronic tag signal is detected, the current time is T3 and the data of the on-board running encoder of the track maintenance equipment is L3 recorded by the control host PLC, and the vehicle body of the track maintenance equipment continues to move forward.
10. The method for automatically verifying distance and speed traveled by a rail device according to claim 9, wherein: error of travel distance E of detection section1(d1+ d2) - (L3-L1), average the run of the detection section
According to the running distance error E1While comparing the average velocity V1Vehicle instant speed V with track maintenance equipment0And obtaining the difference of the detection wheels, and judging whether the vehicle detection wheels of the track maintenance equipment skid or not according to the comparison result.
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| CN202010408477.9A CN111612109A (en) | 2020-05-14 | 2020-05-14 | Automatic checking system and method for running distance and speed of track equipment |
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| CN202010408477.9A CN111612109A (en) | 2020-05-14 | 2020-05-14 | Automatic checking system and method for running distance and speed of track equipment |
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