CN111252112A - Positive line control method of rail transit engineering vehicle based on ground beacon - Google Patents
Positive line control method of rail transit engineering vehicle based on ground beacon Download PDFInfo
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- CN111252112A CN111252112A CN201911166875.8A CN201911166875A CN111252112A CN 111252112 A CN111252112 A CN 111252112A CN 201911166875 A CN201911166875 A CN 201911166875A CN 111252112 A CN111252112 A CN 111252112A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 10
- 238000012806 monitoring device Methods 0.000 claims description 7
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 description 3
- SAZUGELZHZOXHB-UHFFFAOYSA-N acecarbromal Chemical compound CCC(Br)(CC)C(=O)NC(=O)NC(C)=O SAZUGELZHZOXHB-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0072—On-board train data handling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/023—Determination of driving direction of vehicle or train
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/028—Determination of vehicle position and orientation within a train consist, e.g. serialisation
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- Electric Propulsion And Braking For Vehicles (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a positive line control method of a rail transit engineering vehicle based on a ground beacon, which comprises the following steps: arranging 1 group of beacons at each beacon arrangement point, and identifying each beacon, wherein the beacon identification comprises a front station number, a beacon group number and a beacon group number; loading the generated basic data of the rail transit engineering vehicle running line into rail transit monitoring equipment GYK; determining a beacon sending protocol and an EPC coding scheme, and receiving beacon data by the rail vehicle operation monitoring equipment GYK; and processing the received beacon data according to the determined beacon transmission protocol and the EPC coding scheme, and performing main line control on the rail transit engineering vehicle according to the processed beacon data. The invention has the following beneficial effects: the invention can realize the main line control based on the beacon, reduce the manual operation of a driver, reduce the misoperation rate and realize the safe and efficient response in the vehicle control process.
Description
Technical Field
The invention relates to the technical field of rail transit engineering vehicle monitoring, in particular to a positive line control method of a rail transit engineering vehicle based on a ground beacon, which reduces manual operation and improves vehicle control safety and efficiency.
Background
When the rail transit engineering vehicle runs on the main track, a driver needs to manually set information such as up-and-down, stations, kilometers and the like; and (5) calling data according to actual conditions and correcting the position. After receiving an input instruction of a driver, the vehicle-mounted equipment generates a correct vehicle control curve to ensure the safe operation of the rail transit engineering vehicle. The whole process has the advantages of frequent driver operation, high error operation occurrence rate, slow vehicle control response of the vehicle-mounted equipment and incapability of realizing safe and efficient driving control.
Disclosure of Invention
The invention provides a ground beacon-based positive line control method of a rail transit engineering vehicle, which reduces manual operation and improves vehicle control safety and efficiency, and aims to overcome the defects of high error operation rate and slow vehicle control response of vehicle-mounted equipment in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a positive line control method of a rail transit engineering vehicle based on ground beacons comprises a plurality of passive RFID beacons, beacon receiving antennas arranged on the rail engineering vehicle, an analog-to-digital conversion module, a serial port communication module and rail vehicle operation monitoring equipment GYK; the rail car operation monitoring equipment GYK is connected with an analog-digital conversion module through a serial port communication module, the analog-digital conversion module is electrically connected with a beacon receiving antenna, and the beacon receiving antenna is wirelessly connected with a passive RFID beacon; the method comprises the following steps:
(1-1) arranging 1 group of beacons at each beacon arrangement point, and identifying each beacon, wherein the beacon identification comprises a front station number, a beacon group number and a beacon group number;
(1-2) loading the generated basic data of the rail transit engineering vehicle running line into a rail transit monitoring device GYK;
(1-3) determining a beacon sending protocol and an EPC (electronic product code) coding scheme, and receiving beacon data by a railway vehicle operation monitoring device GYK;
and (1-4) processing the received beacon data according to the determined beacon transmission protocol and the EPC coding scheme, and performing main line control on the rail transit engineering vehicle according to the processed beacon data.
The passive RFID beacons are laid on the main track by utilizing the RFID technology, data is written in each beacon, a beacon receiving antenna is installed on the track traffic engineering vehicle, and when the track traffic engineering vehicle crosses the ground beacon, the beacon is activated and the main track data prestored in the beacon is received; the rail vehicle operation monitoring equipment GYK carried on the vehicle can pre-load line basic data, automatically transfer data for position correction according to the position information provided by the beacon, and can ensure the safe operation of the rail traffic engineering vehicle.
Preferably, the specific steps of steps (1-4) are as follows:
(2-1) analyzing the received beacon data according to the determined beacon sending protocol and the EPC coding scheme, and acquiring the position information and the beacon identification of the beacon point;
(2-2) deducing the running direction of the line and the rail car where the beacon point is located according to the station number in front of the beacon point, the number between beacon groups and the number in the beacon group;
(2-3) comparing the received beacon data of the beacon point with the running state of the current calling data of the railway vehicle running monitoring equipment GYK, if the beacon data is the same as the current running state data, the data does not need to be called again, and turning to the step (2-4); if the beacon data is different from the current operation state data, the data needs to be called again, and the step (2-5) is carried out;
(2-4) correcting the position of the current point on the basis of the existing data according to the kilometer post where the beacon point is located;
and (2-5) calling data of a point kilometer post where the beacon is located, regenerating a vehicle control curve, and guiding vehicle control.
Preferably, the specific steps of step (1-3) are as follows:
(3-1) determining a beacon transmission protocol and an EPC encoding scheme;
(3-2) writing the position point data of the beacon into the beacon by using the RFID reader-writer;
(3-3) debugging a beacon receiving antenna of the rail transit engineering vehicle, and setting a sampling rate and transmitting power;
(3-3) when the vehicle runs over the ground beacon, activating the ground passive RFID beacon by the beacon receiving antenna;
and (3-4) receiving the analog signal transmitted by the passive RFID beacon by the receiving antenna, converting the analog signal into a digital signal by the analog/digital conversion module, and sending the digital signal to the rail car operation monitoring equipment GYK by the serial port communication module.
Preferably, the beacon placement points in step (1-1) include a vehicle yard beacon placement point and a main line beacon placement point.
Preferably, the selection principle of the arrangement point of the positive line beacon is as follows: 1 group of beacons are arranged in front of an incoming signal machine and an outgoing signal machine of a station; arranging 1 group of beacons in front of the turnout; in other cases, 1 group of beacons is placed every 1km on the line.
Preferably, the 1-group beacon includes 2 or 3 beacons.
Preferably, the beacon groups of the uplink are even numbered and arranged from small to large along the forward direction; the beacon groups of the downlink are numbered in odd numbers and are arranged from small to large along the forward direction; the numbers in each group of beacons increase from small to large in the forward direction.
Therefore, the invention has the following beneficial effects: the invention can realize the main line control based on the beacon, reduce the manual operation of a driver, reduce the misoperation rate and realize the safe and efficient response in the vehicle control process.
Drawings
FIG. 1 is a flow chart of the present invention;
fig. 2 is a structural view of a signal receiving apparatus of the present invention;
fig. 3 is a beacon layout diagram of a positive line beacon of the present invention.
In the figure: the system comprises a passive RFID beacon 1, a beacon receiving antenna 2, an analog/digital conversion module 3, a serial port communication module 4 and a rail car operation monitoring device GYK 5.
Detailed Description
The invention is further described in the following detailed description with reference to the drawings in which:
the embodiment shown in fig. 1 is a positive line control method of a rail transit engineering vehicle based on a ground beacon, and as shown in fig. 2, the positive line control method includes a plurality of passive RFID beacons 1, a beacon receiving antenna 2 arranged on the rail engineering vehicle, an analog/digital conversion module 3, a serial communication module 4 and a rail vehicle operation monitoring device GYK 5; the rail car operation monitoring equipment GYK is connected with an analog-digital conversion module through a serial port communication module, the analog-digital conversion module is electrically connected with a beacon receiving antenna, and the beacon receiving antenna is wirelessly connected with a passive RFID beacon; as shown in fig. 1, the method comprises the following steps:
step 100, arranging 1 group of beacons at each beacon arrangement point, and identifying each beacon, wherein the beacon identification comprises a front station number, a beacon group number and a beacon group number;
the beacon is a radio frequency electronic tag and can be arranged in a vehicle station yard and also can be arranged on a main line; the station yard beacon is arranged at the station yard of the vehicle section and used for marking the position of the point at the vehicle section; the positive line beacon is arranged on the positive line and used for marking the position information of the line where the point is located; in order to obtain the running direction of the rail car and avoid the omission of beacons, 1 group of beacons are usually installed at one arrangement point; the 1 group of beacons generally comprises 2 or 3 beacons, the numbers in the beacon group are sequentially increased along the forward direction of the line, and the distance is generally set to be 5 m;
in order to mark the position of a line key point, the selection of a positive line beacon arrangement point follows the following principle:
1) a group of beacons are arranged in front of an incoming signal machine and an outgoing signal machine of a station;
2) arranging a group of beacons in front of the turnout;
3) otherwise, arranging a group of beacons every 1 kilometer on the line;
beacons in different positions should correspond to different beacon identifications to distinguish the beacons; the beacon mark under the method consists of a front station number, a beacon group number and a beacon group number. For example: the beacon mark is '11-21-3' which indicates that the station with the number of 11 is in front of the point position and is the 3 rd beacon in the 21 st group of beacons, and the beacon can be initially positioned quickly through the beacon mark;
step 200, loading the generated basic data of the rail transit engineering vehicle running line into a rail transit monitoring device GYK;
step 300, determining a beacon transmission protocol and an EPC (electronic product code) coding scheme, and receiving beacon data by the rail vehicle operation monitoring equipment GYK;
step 301, determining a beacon transmission protocol and an EPC encoding scheme; the EPC code of the main beacon needs to contain the following location information: the method comprises the following steps of (1) obtaining the name of a line where a beacon point is located, the number of a station in front of the line, the distance between a previous beacon and a next beacon, the kilometer post of the point, the number between beacon groups, the number in the beacon groups and the beacon identification;
step 302, writing the position point data of the beacon into the beacon by using an RFID reader-writer; wherein the identification of the beacon is defined as follows: the uplink line groups are numbered with even numbers and are arranged from small to large along the positive direction. The downlink line groups are numbered in odd numbers and are arranged from small to large along the positive direction; the serial numbers in each group of beacon groups are increased from small to large along the positive direction; arranging beacons in 20m before an incoming signal machine and an outgoing signal machine of a station, wherein 3 beacons are used as a group for arranging the beacons in 20m before a turnout, and 2 beacons on a positive line are used as 1 group for arranging according to the distance of 1Km between the groups; to ensure that the station number on each line is unique, generally, the station numbers are sequentially increased from a starting station to a terminal station, and the station numbers on branch lines are distinguished from the station numbers on a main line;
step 303, debugging a beacon receiving antenna of the rail transit engineering vehicle, and setting a sampling rate and transmitting power, so that the rail transit engineering vehicle can sequentially receive different beacons in a group under the condition of a certain speed, and the beacons are not omitted;
step 304, when the vehicle runs over a ground beacon, the beacon receiving antenna activates a ground passive RFID beacon;
305, receiving an analog signal transmitted by the passive RFID beacon by a receiving antenna, converting the analog signal into a digital signal by an analog/digital conversion module, and sending the digital signal to the rail vehicle operation monitoring equipment GYK by a serial port communication module;
step 400, processing the received beacon data according to the determined beacon transmission protocol and the EPC coding scheme, and performing main line control on the rail transit engineering vehicle according to the processed beacon data;
step 401, analyzing the received beacon data according to the determined beacon transmission protocol and the EPC coding scheme, and acquiring the position information and the beacon identifier of the beacon point;
step 402, deducing the running direction of the line and the rail car where the beacon point is located according to the number of the station in front of the beacon point, the number between beacon groups and the number in the beacon group;
identification of vehicle running direction:
the vehicle-mounted equipment can determine the uplink and the downlink of the current vehicle according to the parity of the number among the beacon groups. When the beacons are placed, the inter-group number is odd, indicating that the beacon is in the downlink at that point. The inter-group number is even, indicating that the beacon is on the uplink. Meanwhile, the running direction of the current vehicle can be determined according to the ascending and descending relation of the serial numbers in the same beacon group. The number in the group increases progressively to indicate that the running direction is forward, and decreases progressively to indicate that the running direction is reverse;
as shown in fig. 3, assuming that the beacons received by the vehicle are 10-22-1, 10-22-2, 11-21-2, 11-21-1 in sequence, it indicates that the vehicle is running from the forward direction of the ascending through switch 2 to the reverse direction of the ascending; when receiving the beacon marked as 11-21-1, the vehicle-mounted equipment recalls the data of the uplink direction of the beacon position point; assuming that the beacons received by the vehicle are 10-22-1, 10-22-2, 10-22-2 and 10-22-1 in sequence, the fact that the vehicle is changed from forward to backward and from uplink forward to downlink reverse is indicated; when receiving the beacon with the identifier of 10-22-1, the vehicle-mounted equipment recalls the downlink reverse data of the beacon position point;
step 403, comparing the received beacon data of the beacon point with the running state of the current calling data of the railway vehicle running monitoring equipment GYK, if the beacon data is the same as the current running state data, the data does not need to be called again, and turning to step 404; if the beacon data is different from the current operation state data, the data needs to be called again, and the process goes to step 405;
line branch selection:
the station numbers on different branch lines are different; when the branch line selection is faced, the vehicle-mounted equipment compares the serial number of the front station of the current line with the serial number of the front station receiving the beacon; when the serial number of the station in front of the beacon is different from the serial number of the station in front of the current route and is consistent with the serial number of the station in front of the corresponding branch on the basic data, the vehicle-mounted equipment can call the data of the corresponding route and automatically select the branch;
as shown in fig. 3, assuming that the beacon received by the vehicle is 11-21-1, 11-21-2, 11-23-1, 11-23-2, the vehicle-mounted device will consider that the vehicle is traveling in the forward direction of the descending row, and the front is station number 11; when the beacons with the beacons of 20-71-1 and 20-71-2 are received again, the serial number of the station in front of the beacon is 20, and is different from the serial number of the station in front of the current route; the vehicle-mounted equipment searches the line data containing the station number 20 from the basic data, and if the line data is successfully searched, the data of the branch line is called, so that the function of selecting the branch line is automatically realized;
step 404, correcting the position of the current point on the basis of the existing data according to the kilometer post where the beacon point is located;
step 405, calling the data of the kilometer post at the point of the beacon, regenerating a vehicle control curve, and guiding the vehicle control.
The rail car can determine the actual running environment according to the beacon, obtain the current running track of the vehicle, and call corresponding data to ensure correct vehicle control; as shown in fig. 3, the beacons received by the vehicles are 10-26-3, 10-26-2, 10-26-1, 10-24-2, 10-24-1, 11-23-1, 11-23-2, 20-71-1 and 20-71-2, which indicates that the rail cars are in reverse running in the downward direction after leaving the station 10; when the running direction changes at the position 11-23-2, the vehicle can call the downlink forward data at the kilometer post where the beacon is located; at 20-71-2, the vehicle will call up the downlink positive line data of the corresponding branch line at the kilometer post where the beacon is located.
The RFID beacon positioning has wide application in railway vehicle positioning, and can directly acquire geographical position information on a track line; the operation of the rail transit engineering vehicle is realized according to the loaded and called basic data and is not direct geographical position information; the method comprises the steps that geographical position information provided by the RFID beacons is converted into current running line information through reasonable beacon identification design and arrangement, and positioning of the current beacons in running data of the rail engineering vehicle is achieved, so that main line running control is achieved; compared with the original method for manually inputting the line position information by the driver, the method can realize the main line control of the rail car based on the beacon, improve the operation response speed, reduce the probability of manual misoperation and realize efficient and safe car control.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (7)
1. A positive line control method of a rail transit engineering vehicle based on ground beacons is characterized by comprising a plurality of passive RFID beacons (1), a beacon receiving antenna (2) arranged on the rail engineering vehicle, an analog-to-digital conversion module (3), a serial communication module (4) and rail vehicle operation monitoring equipment GYK (5); the rail car operation monitoring equipment GYK is connected with an analog-digital conversion module through a serial port communication module, the analog-digital conversion module is electrically connected with a beacon receiving antenna, and the beacon receiving antenna is wirelessly connected with a passive RFID beacon; the method comprises the following steps:
(1-1) arranging 1 group of beacons at each beacon arrangement point, and identifying each beacon, wherein the beacon identification comprises a front station number, a beacon group number and a beacon group number;
(1-2) loading the generated basic data of the rail transit engineering vehicle running line into a rail transit monitoring device GYK;
(1-3) determining a beacon sending protocol and an EPC (electronic product code) coding scheme, and receiving beacon data by a railway vehicle operation monitoring device GYK;
and (1-4) processing the received beacon data according to the determined beacon transmission protocol and the EPC coding scheme, and performing main line control on the rail transit engineering vehicle according to the processed beacon data.
2. The ground beacon-based rail transit engineering vehicle main line control method according to claim 1, wherein the specific steps of the steps (1-4) are as follows:
(2-1) analyzing the received beacon data according to the determined beacon sending protocol and the EPC coding scheme, and acquiring the position information and the beacon identification of the beacon point;
(2-2) deducing the running direction of the line and the rail car where the beacon point is located according to the station number in front of the beacon point, the number between beacon groups and the number in the beacon group;
(2-3) comparing the received beacon data of the beacon point with the running state of the current calling data of the railway vehicle running monitoring equipment GYK, if the beacon data is the same as the current running state data, the data does not need to be called again, and turning to the step (2-4); if the beacon data is different from the current operation state data, the data needs to be called again, and the step (2-5) is carried out;
(2-4) correcting the position of the current point on the basis of the existing data according to the kilometer post where the beacon point is located;
and (2-5) calling data of a point kilometer post where the beacon is located, regenerating a vehicle control curve, and guiding vehicle control.
3. The ground beacon-based rail transit engineering vehicle main line control method according to claim 1, wherein the specific steps of the step (1-3) are as follows:
(3-1) determining a beacon transmission protocol and an EPC encoding scheme;
(3-2) writing the position point data of the beacon into the beacon by using the RFID reader-writer;
(3-3) debugging a beacon receiving antenna of the rail transit engineering vehicle, and setting a sampling rate and transmitting power;
(3-3) when the vehicle runs over the ground beacon, activating the ground passive RFID beacon by the beacon receiving antenna;
and (3-4) receiving the analog signal transmitted by the passive RFID beacon by the receiving antenna, converting the analog signal into a digital signal by the analog/digital conversion module, and sending the digital signal to the rail car operation monitoring equipment GYK by the serial port communication module.
4. The ground beacon-based rail transit engineering vehicle main line control method according to claim 1, wherein the beacon layout points in step (1-1) include a vehicle yard beacon layout point and a main line beacon layout point.
5. The ground beacon-based positive line control method for the rail transit engineering vehicle as claimed in claim 4, wherein the selection principle of the arrangement points of the positive line beacon is as follows: 1 group of beacons are arranged in front of an incoming signal machine and an outgoing signal machine of a station; arranging 1 group of beacons in front of the turnout; in other cases, 1 group of beacons is placed every 1km on the line.
6. The ground beacon-based rail transit engineering vehicle main line control method according to claim 1 or 4, wherein 1 group of beacons includes 2 or 3 beacons.
7. The ground beacon-based rail transit engineering vehicle forward control method according to claim 1, 2, 3, 4, 5 or 6, wherein the beacon groups of the uplink are numbered as even numbers and arranged from small to large along the forward direction; the beacon groups of the downlink are numbered in odd numbers and are arranged from small to large along the forward direction; the numbers in each group of beacons increase from small to large in the forward direction.
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| CN116153166A (en) * | 2023-04-21 | 2023-05-23 | 西北铁道电子股份有限公司 | Vehicle-mounted simulation method, system and equipment for rail car driver before taking out |
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| CN111252112B (en) | 2022-10-11 |
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