CN109436036B - Rail car shunting and coupling operation protection method based on ranging antenna - Google Patents
Rail car shunting and coupling operation protection method based on ranging antenna Download PDFInfo
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- CN109436036B CN109436036B CN201811065771.3A CN201811065771A CN109436036B CN 109436036 B CN109436036 B CN 109436036B CN 201811065771 A CN201811065771 A CN 201811065771A CN 109436036 B CN109436036 B CN 109436036B
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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 vehicle trains
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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 vehicle train for signalling purposes ; On-board control or communication systems
- B61L15/009—On-board display devices
Abstract
The invention discloses a railway vehicle shunting and hitching operation protection method based on a ranging antenna, which comprises a plurality of railway vehicles which are arranged on a track at intervals, wherein the front end and the rear end of each railway vehicle are respectively provided with a display and a vehicle-mounted ranging antenna; each rail car is also provided with a vehicle-mounted host computer, an alarm and a GYK public data device, and the vehicle-mounted host computer is respectively and electrically connected with the alarm, the GYK public data device, 2 displays and 2 vehicle-mounted ranging antennas. The invention is not affected by the field, is suitable for various complex terrains, does not need to install any equipment on the ground, and only needs to install vehicle-mounted ranging antennas at two ends of the vehicle; portable range finding antenna equipment can place wantonly, to the more accurate characteristics of analysis processing of distance information.
Description
Technical Field
The invention relates to the technical field of shunting operation of railway track cars, in particular to a method for protecting shunting and hitching operation of a track car based on a ranging antenna.
Background
At present, 19 road offices are in total in the country, and each road office has hundreds of stations and stations. The shunting and hitching tasks are carried out in each station and station yard, and the real-time positions of other vehicles cannot be timely mastered due to the complex line condition of each station and station yard, particularly during the night construction. In the actual shunting and hitching process, the following potential safety hazards exist due to excessive dependence on the experience of a driver and the familiarity degree of a station yard, and urgent solution is needed.
The existing rail cars are all provided with GYK, but the GYK shunting mode has no protection point, the shunting operation is in the condition of 'machine control' loss and complete 'human control', the control is extremely difficult to clamp, and when drivers and passengers break rules and break ages and the responsibility is not strong, accidents of vehicle collision can be caused;
the novice driver is relatively long in familiarity with the business process, and is very difficult to familiarize in a short period;
the shunting and hitching operation relates to drivers, shunting personnel, conners and the like, and has multiple links and high management difficulty.
The wireless ranging antenna is widely applied to various scenes, but cannot be used independently, and needs to be matched with corresponding display alarm equipment for use.
Disclosure of Invention
The invention aims to overcome the defects that the operation of shunting operation in the prior art is extremely difficult to control and causes vehicle collision accidents, and provides a method for protecting the shunting and hitching operation of a railway vehicle based on a ranging antenna.
In order to achieve the purpose, the invention adopts the following technical scheme:
a rail car shunting and hitching operation protection method based on a ranging antenna comprises a plurality of rail cars which are arranged at intervals on a rail, wherein a display and a vehicle-mounted ranging antenna are arranged at the front end and the rear end of each rail car; each rail car is also provided with a vehicle-mounted host computer, an alarm and a GYK public data device, wherein the vehicle-mounted host computer is respectively and electrically connected with the alarm, the GYK public data device, 2 displays and 2 vehicle-mounted ranging antennas;
the method comprises the following steps:
(1-1) numbers corresponding to the 2 vehicle-mounted ranging antennas are arranged in the vehicle-mounted host of each rail vehicle, the number of the vehicle-mounted ranging antenna needing ranging is selected from the vehicle-mounted host, and the vehicle-mounted host controls the vehicle-mounted ranging antenna needing ranging to transmit ranging signals to the adjacent rail vehicle;
(1-2) the vehicle-mounted ranging antenna needing ranging receives ranging signals reflected by adjacent railcars, and each vehicle-mounted ranging antenna calculates the detection distance between the vehicle-mounted ranging antenna and the adjacent railcars by using the transmitted ranging signals and the reflected ranging signals;
(1-3) calculating the distance after error correction between the positions of the 2 vehicle-mounted ranging antennas of the vehicle and the positions of the two vehicle-mounted ranging antennas of the adjacent vehicles by the vehicle-mounted host of each rail vehicle;
(1-4) two displays of each rail car display the distance between adjacent vehicles in real time according to the distance after error correction, and the alarm of each rail car gives an alarm in a voice mode to realize an anti-collision early warning function;
when the distance between each rail car and the adjacent rail car is long, the alarm time interval is increased; when the distance between each rail car and the adjacent rail car is short, the alarm time interval is shortened, and a driver is reminded of paying attention to the speed limit and the distance.
The vehicle-mounted ranging antenna collects the distance information of all the vehicle-mounted ranging antennas in the effective range and provides the distance information to the vehicle-mounted host;
the vehicle-mounted host receives all distance information sent by the vehicle-mounted ranging antenna, achieves accurate distance calculation through preset parameters and optimized calculation, and sends corresponding alarm information according to the distance.
The invention is not affected by the field and is suitable for various complex terrains; no equipment is required to be installed on the ground, and only vehicle-mounted ranging antennas are required to be installed at the two ends of a vehicle;
the distance measuring antenna measures the distance information between the vehicle and other vehicles in the station or station yard, and the accurate calculation of the distance between the vehicles is realized through multi-point balance calculation, so that the anti-collision early warning of shunting and hitching operation is realized.
Preferably, (1-3) comprises the steps of:
(2-1) setting the serial numbers of 2 vehicle-mounted ranging antennas of a railway vehicle A as a and B respectively, the serial numbers of 2 vehicle-mounted ranging antennas of a railway vehicle B adjacent to the railway vehicle A as c and d respectively, obtaining a distance AB1 between the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna B by a vehicle-mounted host of the railway vehicle A, a distance AC1 between the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna c, a distance AD1 between the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna d, a distance BC1 between the vehicle-mounted ranging antenna B and the vehicle-mounted ranging antenna c, and a distance BD1 between the vehicle-mounted ranging antenna B and the vehicle-mounted ranging antenna d;
(2-2) setting the sampling period of the vehicle-mounted ranging antenna as T, and optimizing AB1, AC1, AD1, BC1 and BD1 detected in the latest sampling period by using an ideal point method to obtain optimized AB2, AC2, AD2, BC2 and BD 2; the ideal point method is a method for solving an evaluation function of a multi-objective planning problem, which makes each target value approximate to an ideal (optimal) value as much as possible.
(2-3) the fixed distance x of the vehicle-mounted distance measuring antenna a and the vehicle-mounted distance measuring antenna b is arranged in the vehicle-mounted host, and errors phi 1, phi 2 and phi 3 are calculated by the following formulas:
Φ1=AB2/x；
Φ2=(AC2-BC2)/x；
Φ3=(AD2-BD2)/x；
(2-4) calculating the error-corrected distance AC3 of the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna c, the error-corrected distance AD3 of the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna d, the error-corrected distance BC3 of the vehicle-mounted ranging antenna b and the vehicle-mounted ranging antenna c, and the error-corrected distance BD3 of the vehicle-mounted ranging antenna b and the vehicle-mounted ranging antenna d by using the following formulas:
AC3=(Φ1+Φ2+Φ3) /3× AC2
AD3=(Φ1+Φ2+Φ3) /3× AD2
BC3=(Φ1+Φ2+Φ3) /3× BC2
BD3=(Φ1+Φ2+Φ3) /3×BD2。
preferably, the system also comprises portable ranging antennas arranged at each integer kilometer post position of the railway line, and the number of each portable ranging antenna is equal to the kilometer post value thereof;
also comprises the following steps:
(3-1) the vehicle-mounted host machine subtracts the current kilometer post in the GYK public data equipment from the kilometer post corresponding to the portable ranging antenna and takes an absolute value to obtain the actual distance y between the rail car and the nearest portable ranging antenna;
(3-2) measuring the distance between the 2 vehicle-mounted ranging antennas of each railcar and the portable ranging antenna closest to the railcar to obtain 2 distance values, and selecting the smaller distance value from the 2 distance values to be recorded as z;
(3-3) calculating a measurement error Φ 4 using the following formula:
Φ4=z/y；
AC3, AD3, BC3 and BD3 were calculated using the following formulas:
AC3=(Φ1+Φ2+Φ3+Φ4) /4× AC2
AD3=(Φ1+Φ2+Φ3+Φ4) /4× AD2
BC3=(Φ1+Φ2+Φ3+Φ4) /4 × BC2
BD3=(Φ1+Φ2+Φ3+Φ4) /4× BD2。
the portable distance measuring antenna equipment can be placed at will, for example, on a flat car and can be held by hands of people. Is suitable for the characteristic of frequent transition of the operation of the rail car.
Preferably, the vehicle-mounted ranging antenna comprises a processor, a microwave transmitter and a microwave receiver, and the processor is electrically connected with the microwave transmitter and the microwave receiver respectively.
Preferably, the portable ranging antenna comprises a shell, and a charging device, a battery, a processor, a microwave transmitter and a microwave receiver which are arranged in the shell; the charging device, the battery and the processor are electrically connected in sequence, and the processor is electrically connected with the microwave emitter and the microwave receiver respectively.
Therefore, the invention has the following beneficial effects: the method is not influenced by the field, is suitable for various complex terrains, does not need to install any equipment on the ground, and only needs to install vehicle-mounted ranging antennas at two ends of a vehicle; the portable distance measurement antenna equipment can be placed at will and is suitable for the characteristic of frequent transition of the operation of the rail car; the analysis and the processing of the distance information are more accurate, and the anti-collision early warning is effectively realized.
Drawings
FIG. 1 is a functional block diagram of the present invention;
fig. 2 is a flow chart of the present invention.
In the figure: the track car 1, on-vehicle host computer 2, display 3, on-vehicle range finding antenna 4, alarm 5, the public data equipment of GYK 6, portable range finding antenna 7.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
Example 1
The embodiment shown in fig. 1 is a method for protecting a shunting and hitching operation of a rail car based on a ranging antenna, and comprises a plurality of rail cars 1 which are arranged at intervals on a track, wherein a display 3 and a vehicle-mounted ranging antenna 4 are arranged at the front end and the rear end of each rail car; each rail car is also provided with a vehicle-mounted host machine 2, an alarm 5 and a GYK public data device 6, wherein the vehicle-mounted host machine is respectively and electrically connected with the alarm, the GYK public data device, 2 displays and 2 vehicle-mounted ranging antennas;
the vehicle-mounted ranging antenna comprises a processor, a microwave transmitter and a microwave receiver, wherein the processor is electrically connected with the microwave transmitter and the microwave receiver respectively.
The portable ranging antenna comprises a shell, a charging device, a battery, a processor, a microwave transmitter and a microwave receiver, wherein the charging device, the battery, the processor, the microwave transmitter and the microwave receiver are arranged in the shell; the charging device, the battery and the processor are electrically connected in sequence, and the processor is electrically connected with the microwave emitter and the microwave receiver respectively.
As shown in fig. 2, the method comprises the following steps:
200, receiving ranging signals reflected by adjacent railcars by the vehicle-mounted ranging antennas needing ranging, and calculating the detection distance between each vehicle-mounted ranging antenna and the adjacent railcars by each vehicle-mounted ranging antenna by using the transmitted ranging signals and the reflected ranging signals;
step 300, calculating the distance after error correction between the positions of the 2 vehicle-mounted ranging antennas of the vehicle and the positions of the two vehicle-mounted ranging antennas of the adjacent vehicles by the vehicle-mounted host of each rail vehicle;
step 310, setting the serial numbers of 2 vehicle-mounted ranging antennas of a railway vehicle A as a and B respectively, and the serial numbers of 2 vehicle-mounted ranging antennas of a railway vehicle B adjacent to the railway vehicle A as c and d respectively, wherein a vehicle-mounted host of the railway vehicle A obtains a distance AB1 between the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna B, a distance AC1 between the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna c, a distance AD1 between the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna d, a distance BC1 between the vehicle-mounted ranging antenna B and the vehicle-mounted ranging antenna c, and a distance BD1 between the vehicle-mounted ranging antenna B and the vehicle-mounted ranging antenna d;
step 320, setting the sampling period of the vehicle-mounted ranging antenna as T, and optimizing AB1, AC1, AD1, BC1 and BD1 detected in the latest sampling period by using an ideal point method to obtain optimized AB2, AC2, AD2, BC2 and BD 2;
step 330, a fixed distance x between the vehicle-mounted distance measuring antenna a and the vehicle-mounted distance measuring antenna b is set in the vehicle-mounted host, and errors Φ 1, Φ 2, and Φ 3 are calculated by using the following formulas:
Φ1=AB2/x；
Φ2=(AC2-BC2)/x；
Φ3=(AD2-BD2)/x；
step 340, calculating the error corrected distance AC3 of the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna c, the error corrected distance AD3 of the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna d, the error corrected distance BC3 of the vehicle-mounted ranging antenna b and the vehicle-mounted ranging antenna c, and the error corrected distance BD3 of the vehicle-mounted ranging antenna b and the vehicle-mounted ranging antenna d by using the following formulas:
AC3=(Φ1+Φ2+Φ3) /3× AC2
AD3=(Φ1+Φ2+Φ3) /3× AD2
BC3=(Φ1+Φ2+Φ3) /3× BC2
BD3=(Φ1+Φ2+Φ3) /3×BD2。
when the distance between each rail car and the adjacent rail car is long, the alarm time interval is increased; when the distance between each rail car and the adjacent rail car is short, the alarm time interval is shortened, and a driver is reminded of paying attention to the speed limit and the distance.
Example 2
Embodiment 2 includes all the structure and method parts of embodiment 1, and embodiment 2 further includes a portable ranging antenna 7 as shown in fig. 1 provided at each integer kilometer sign position of the railway line, and the number of each portable ranging antenna is equal to the number of its kilometer sign; also comprises the following steps:
(3-1) the vehicle-mounted host machine subtracts the current kilometer post in the GYK public data equipment from the kilometer post corresponding to the portable ranging antenna and takes an absolute value to obtain the actual distance y between the rail car and the nearest portable ranging antenna;
(3-2) measuring the distance between the 2 vehicle-mounted ranging antennas of each railcar and the portable ranging antenna closest to the railcar to obtain 2 distance values, and selecting the smaller distance value from the 2 distance values to be recorded as z;
(3-3) calculating a measurement error Φ 4 using the following formula:
Φ4=z/y；
AC3, AD3, BC3 and BD3 were calculated using the following formulas:
AC3=(Φ1+Φ2+Φ3+Φ4) /4× AC2
AD3=(Φ1+Φ2+Φ3+Φ4) /4 × AD2
BC3=(Φ1+Φ2+Φ3+Φ4) /4× BC2
BD3=(Φ1+Φ2+Φ3+Φ4) /4 × BD2。
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 (3)
1. A rail car shunting and hitching operation protection method based on a ranging antenna is characterized by comprising a plurality of rail cars (1) which are arranged at intervals on a rail, wherein the front end and the rear end of each rail car are respectively provided with a display (3) and a vehicle-mounted ranging antenna (4); each rail car is also provided with a vehicle-mounted host (2), an alarm (5) and a GYK public data device (6), and the vehicle-mounted host is respectively and electrically connected with the alarm, the GYK public data device, 2 displays and 2 vehicle-mounted ranging antennas; the railway track distance measurement system also comprises portable distance measurement antennas (7) arranged at each integer kilometer post position of the railway track, and the number of each portable distance measurement antenna is equal to the kilometer post value thereof;
the method comprises the following steps:
(1-1) numbers corresponding to the 2 vehicle-mounted ranging antennas are arranged in the vehicle-mounted host of each rail vehicle, the number of the vehicle-mounted ranging antenna needing ranging is selected from the vehicle-mounted host, and the vehicle-mounted host controls the vehicle-mounted ranging antenna needing ranging to transmit ranging signals to the adjacent rail vehicle;
(1-2) the vehicle-mounted ranging antenna needing ranging receives ranging signals reflected by adjacent railcars, and each vehicle-mounted ranging antenna calculates the detection distance between the vehicle-mounted ranging antenna and the adjacent railcars by using the transmitted ranging signals and the reflected ranging signals;
(1-3) calculating the distance after error correction between the positions of the 2 vehicle-mounted ranging antennas of the vehicle and the positions of the two vehicle-mounted ranging antennas of the adjacent vehicles by the vehicle-mounted host of each rail vehicle; the method comprises the following steps:
(2-1) setting the serial numbers of 2 vehicle-mounted ranging antennas of a railway vehicle A as a and B respectively, the serial numbers of 2 vehicle-mounted ranging antennas of a railway vehicle B adjacent to the railway vehicle A as c and d respectively, obtaining a distance AB1 between the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna B by a vehicle-mounted host of the railway vehicle A, a distance AC1 between the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna c, a distance AD1 between the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna d, a distance BC1 between the vehicle-mounted ranging antenna B and the vehicle-mounted ranging antenna c, and a distance BD1 between the vehicle-mounted ranging antenna B and the vehicle-mounted ranging antenna d;
(2-2) setting the sampling period of the vehicle-mounted ranging antenna as T, and optimizing AB1, AC1, AD1, BC1 and BD1 detected in the latest sampling period by using an ideal point method to obtain optimized AB2, AC2, AD2, BC2 and BD 2;
(2-3) the fixed distance x of the vehicle-mounted distance measuring antenna a and the vehicle-mounted distance measuring antenna b is arranged in the vehicle-mounted host, and errors phi 1, phi 2 and phi 3 are calculated by the following formulas:
Φ1=AB2/x；
Φ2=(AC2-BC2)/x；
Φ3=(AD2-BD2)/x；
(2-4) calculating the error-corrected distance AC3 of the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna c, the error-corrected distance AD3 of the vehicle-mounted ranging antenna a and the vehicle-mounted ranging antenna d, the error-corrected distance BC3 of the vehicle-mounted ranging antenna b and the vehicle-mounted ranging antenna c, and the error-corrected distance BD3 of the vehicle-mounted ranging antenna b and the vehicle-mounted ranging antenna d by using the following formulas:
AC3=(Φ1+Φ2+Φ3)/3× AC2
AD3=(Φ1+Φ2+Φ3) /3 × AD2
BC3=(Φ1+Φ2+Φ3) /3× BC2
BD3=(Φ1+Φ2+Φ3) /3×BD2；
also comprises the following steps of (1) preparing,
(3-1) the vehicle-mounted host machine subtracts the current kilometer post in the GYK public data equipment from the kilometer post corresponding to the portable ranging antenna and takes an absolute value to obtain the actual distance y between the rail car and the nearest portable ranging antenna;
(3-2) measuring the distance between the 2 vehicle-mounted ranging antennas of each railcar and the portable ranging antenna closest to the railcar to obtain 2 distance values, and selecting the smaller distance value from the 2 distance values to be recorded as z;
(3-3) calculating a measurement error Φ 4 using the following formula:
Φ4=z/y；
AC3, AD3, BC3 and BD3 were calculated using the following formulas:
AC3=(Φ1+Φ2+Φ3+Φ4) /4× AC2
AD3=(Φ1+Φ2+Φ3+Φ4) /4× AD2
BC3=(Φ1+Φ2+Φ3+Φ4) /4× BC2
BD3=(Φ1+Φ2+Φ3+Φ4) /4× BD2；
(1-4) two displays of each rail car display the distance between adjacent vehicles in real time according to the distance after error correction, and the alarm of each rail car gives an alarm in a voice mode to realize an anti-collision early warning function;
when the distance between each rail car and the adjacent rail car is long, the alarm time interval is increased; when the distance between each rail car and the adjacent rail car is short, the alarm time interval is shortened, and a driver is reminded of paying attention to the speed limit and the distance.
2. The method for protecting the shunting and hitching operation of the railway vehicle based on the ranging antenna as claimed in claim 1, wherein the vehicle-mounted ranging antenna comprises a processor, a microwave transmitter and a microwave receiver, and the processor is electrically connected with the microwave transmitter and the microwave receiver respectively.
3. The protection method for the shunting and hitching operation of the railway vehicle based on the distance measuring antenna as claimed in claim 1, wherein the portable distance measuring antenna comprises a shell, a charging device, a battery, a processor, a microwave emitter and a microwave receiver which are arranged in the shell; the charging device, the battery and the processor are electrically connected in sequence, and the processor is electrically connected with the microwave emitter and the microwave receiver respectively.
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| CN113320571B (en) * | 2021-06-09 | 2023-06-30 | 中国国家铁路集团有限公司 | Intelligent continuous-hanging control method for railway plane shunting |
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Address after: 310013 5 floor, 10 building, 30 Wan Tang Road, Xihu District, Hangzhou, Zhejiang. Patentee after: Gaoxing Chuanglian Technology Co.,Ltd. Address before: 310013 4th floor, building 10, No. 30, Wantang Road, Xihu District, Hangzhou City, Zhejiang Province Patentee before: GOSUNCN CHUANGLIAN TECHNOLOGY Co.,Ltd. |