CN113335344B - Design method of vehicle automatic protection system and protection system thereof - Google Patents
Design method of vehicle automatic protection system and protection system thereof Download PDFInfo
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- CN113335344B CN113335344B CN202110443904.1A CN202110443904A CN113335344B CN 113335344 B CN113335344 B CN 113335344B CN 202110443904 A CN202110443904 A CN 202110443904A CN 113335344 B CN113335344 B CN 113335344B
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Abstract
The invention relates to the technical field of personal rapid traffic, in particular to a design method of an automatic vehicle protection system, which comprises the following steps of 1, customizing vehicle speed, obtaining theoretical speed of vehicles on each turnout section according to system operation capacity, and taking a certain value from intervals of different theoretical speeds as final driving speed of the vehicles on the turnout section; 2, arranging a guide rail coil: designing the length of the guide rail coil according to the final driving speed obtained in the step 1, and presetting the guide rail coil with the length on a specific turnout map; 3, configuring a back plate: designing a jumper configuration scheme of the road section back plate according to the preset scheme of the guide rail coil on the turnout road section in the step 2; 4, back plate production: and 3, producing and debugging the backplane according to the jumper configuration scheme of the backplane in the step 3. The final driving speeds of the vehicles on the curved road section and the turnout road section are preset, so that the back plate can be produced in a standardized mode, and the construction efficiency and the construction quality are improved.
Description
Technical Field
The invention relates to the technical field of personal rapid traffic, in particular to a design method of an automatic vehicle protection system and a protection system thereof.
Background
In personal rapid transit, the vehicle protection system is used for ensuring that vehicles run orderly on a road, and safety accidents such as rear-end collision and collision of the vehicles are avoided. The vehicle protection system comprises a guide rail, a vehicle, a guide rail coil, a vehicle-mounted transponder and a trackside equipment box, wherein the track coil is generally rectangular and is laid end to end along the direction of the guide rail, each coil is controlled by a corresponding circuit, a circuit board is arranged on a back plate of the trackside equipment box, and the trackside equipment box is used as a control center of the vehicle protection system to realize automatic protection control of the vehicle on the guide rail.
In order to ensure the driving safety of the vehicle on the guide rail, the length of the guide rail coil should be matched with the driving speed of the vehicle, so that the vehicle can be braked under a certain distance in case of emergency, and the length of the single guide rail coil influences the number of coils in a road section with a certain length.
The speed of vehicles on a straight road section is the same, but the vehicles can run at a reduced speed on a curved road or an turnout road section, the road conditions of different turnouts or curved roads are different, the theoretical speed of the vehicles is different, the length of a guide rail coil cannot be determined, the map mapping needs to be waited to be completed, after the theoretical speed of the vehicles on the road section is determined, designing the length of the guide rail coil, configuring the secondary jumper of the turnout back plate after the coil scheme is stable, namely, the design schemes of the guide rail coils of different road sections lead to completely different jumper connections, greatly restrict the production progress and the installation period, also put forward high requirements on field wiring engineers, system debugging personnel and later maintenance personnel, meanwhile, the connectors are subjected to open-line compression joint in secondary jumper configuration, so that the reliability is extremely poor, hidden dangers are buried for subsequent system operation, the system maintenance workload is increased, and the popularization of personal rapid traffic is not facilitated.
Therefore, a technical scheme is needed at present to solve the technical problems that in the construction of personal rapid transit, the lengths and the numbers of the coils of the guide rails of different turnouts or bent sections cannot be determined, so that the jumper configuration of the back plate in the trackside equipment box on the track side of the section is different, secondary jumper configuration is needed on site, and therefore the construction efficiency is low, the jumper configuration reliability is poor, and the popularization of the personal rapid transit is not facilitated.
Disclosure of Invention
The invention aims to: aiming at the technical problems that in the prior art, in the construction of personal rapid transit, the lengths and the number of guide rail coils of different turnout roads or bent roads cannot be determined, so that the jumper configuration of a back plate in a trackside equipment box at the side of a track of the road section is different, and secondary jumper configuration needs to be carried out on site, so that the construction efficiency is low, the jumper configuration reliability is poor, and the personal rapid transit popularization is not facilitated, the design method of the vehicle automatic protection system and the protection system are provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
a design method of an automatic protection system of a vehicle comprises the following steps:
step 1, customizing vehicle speed, acquiring the reliable speed of the vehicle on each branch road section according to the system operation capacity, and taking a certain value from intervals of different reliable speeds as the final running speed of the vehicle on the branch road section;
step 3, configuring a back plate: designing a jumper configuration scheme of the road section back plate according to the preset scheme of the guide rail coil on the turnout road section in the step 2;
step 4, back plate production: and 3, producing and debugging the backplane according to the jumper configuration scheme of the backplane in the step 3.
According to the design method of the automatic vehicle protection system, the reliable speeds of the vehicles on different curves are different, and after each reliable speed of different road sections is calculated, one speed is taken in the interval of the reliable speeds as the final driving speed of the vehicle; and passing through the design relationship between vehicle speed and guideway coil L =1/2 (V)2L is the length of the guide rail coil, V is the final running speed of the vehicle, a is the maximum acceleration in the braking process of the vehicle, namely the length of the guide rail coil is equal to half of the emergency braking distance of the vehicle, and the preset of the guide rail coil at the branch section can be realized after the length of the guide rail coil is determined; finally, according to the arrangement scheme of the guide rail coils, carrying out jumper configuration on the back plate to realize standardized production of the back plate;
furthermore, the final driving speeds of the vehicles on the curved road section and the turnout road section are preset, so that the backboard can be subjected to standardized production, secondary jumper configuration on the backboard during field installation is avoided, the use reliability of the backboard is improved, and the construction efficiency is also improved.
As a preferable aspect of the present invention, in step 1, the final travel speed is: the average value of the reliable speed of the vehicle at each branch. The final running speed can be more consistent with the reliable speed of the vehicle on each branch road section, the running speed of the vehicles on most branch road sections can be ensured on the premise of ensuring the running safety of the vehicles on the branch road sections, and the running efficiency of the vehicles is ensured.
As a preferable aspect of the present invention, in step 1, the final travel speed is: the lowest value of the reliable speed of the vehicle at each branch. The vehicle can run more safely on the turnout section without overspeed.
The vehicle protection system comprises a guide rail, a trackside equipment box and an induction assembly, wherein the induction assembly comprises a plurality of guide rail coils, the guide rail coils are laid along the length direction of the guide rail, a back plate produced by the method is arranged in the trackside equipment box, and the guide rail coils are in communication connection with the back plate.
According to the vehicle protection system, the standardized production of the back plate is carried out by presetting the final driving speeds of the vehicle on the curved road section and the turnout road section, so that the back plate can be installed and used after leaving a factory without secondary jumper configuration, the construction efficiency and the construction quality of the vehicle protection system are improved, and the technical requirement of a system debugging engineer is reduced.
The invention preferably comprises at least two induction assemblies, and each two induction assemblies are in communication connection. The two induction assemblies have the same functions, and the guide rail coil in each induction assembly is in communication connection with the trackside equipment box on the track side, so that a main function and a standby function are realized, and the phenomenon that the protection system of a vehicle fails when a certain induction assembly is damaged is prevented.
As a preferable scheme of the invention, two adjacent induction assemblies are arranged in a staggered mode. That is to say, the guide rail coils in two induction assemblies are arranged in a staggered manner, so that no communication gap exists in the process that a vehicle enters another guide rail coil from one guide rail coil, and the running safety of the vehicle is improved.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the integrated circuit board replaces the open-wire compression joint of the back plate, so that great convenience is brought to field system debugging, troubleshooting and system maintenance;
2. the secondary jumper wire configuration process of the turnout section back plate is completely omitted, the back plate can be installed and used after leaving a factory, and the field construction period is saved.
3. The design of the back plate can be carried out after the line design is determined, and the design, the manufacture, the production and the debugging of the back plate are all concentrated before the on-site installation without the steps of completing the line construction and surveying and mapping vehicles on the spot, so that the on-site working pressure is reduced.
4. The standardized integrated circuit board is simple and convenient to install, the technical requirements of field installation engineers, system engineers and debugging engineers are greatly reduced, and the construction cost is reduced.
5. The reliability, maintainability and design life of the integrated circuit board are far superior to those of an open wire compression joint jumper.
Drawings
FIG. 1 is a flow chart of a method of designing an automatic protection system for a vehicle according to the present invention;
FIG. 2 is a schematic view of a vehicle protection system according to the present invention in embodiment 2;
FIG. 3 is a schematic view of a vehicle protection system according to the present invention in embodiment 3;
the labels in the figure are: 1-guide rail, 2-trackside equipment box and 3-guide rail coil.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1 and fig. 2, in the present embodiment, a method for designing an automatic protection system for a vehicle includes:
step 1, customizing vehicle speed, acquiring the reliable speed of the vehicle on each branch road section according to the system operation capacity, and taking a certain value from intervals of different reliable speeds as the final running speed of the vehicle on the branch road section;
step 3, configuring a back plate: designing a jumper configuration scheme of the road section back plate according to the preset scheme of the guide rail coil 3 on the turnout road section in the step 2;
step 4, back plate production: and 3, producing and debugging the backplane according to the jumper configuration scheme of the backplane in the step 3.
In the embodiment, the running speeds of the vehicles on different curves are different, and after each reliable speed of different road sections is calculated, one speed is taken as the final running speed of the vehicle in the interval of the reliable speeds; and passing through the design relationship between vehicle speed and guideway coil L =1/2 (V)2A), wherein L is the length of the guide rail coil, V is the final running speed of the vehicle, a is the maximum acceleration in the braking process of the vehicle, namely the length of the coil is equal to half of the emergency braking distance of the vehicle, and the guide rail coil can be preset on a branch section after the length of the coil is determined; finally, according to the arrangement scheme of the guide rail coils 3, jumper configuration of the back plate is carried out, and standardized production of the back plate is realized;
furthermore, the final driving speeds of the vehicles on the curved road section and the turnout road section are preset, so that the backboard can be subjected to standardized production, secondary jumper configuration on the backboard during field installation is avoided, the use reliability of the backboard is improved, and the construction efficiency is also improved.
Specifically, the method comprises the following steps:
in personal rapid traffic, the highest designed speed per hour of a vehicle is 40km/h, the normal running speed is 32.4km/h, the reliable speed of the vehicle at the three-branch road is 15.426km/h, and the vehicle cannot be caused to have safety accidents when passing through the three-branch road at the speed according to different bending radiuses of the line under the condition of stable road conditions;
the jumper configuration of the back plate on the fork road section follows three principles:
external occupation principle: the track coils 3 receive the occupancy signals from the upstream vehicles, that is, the first track coil 3 and the second track coil 3 of the branch road section should be respectively connected to the no-occupancy ports of the oscillating circuit boards, that is, L1, L2, L5 and L6 should be respectively connected to the two corresponding oscillating circuit boards, and both the two oscillating circuits are plugged on the back board of the trackside equipment box 2.
The principle of loop disabling: when the vehicle enters a certain track coil, the upstream track coil is in a disabled state, as shown in fig. 2, L2 disables L1 and L5; l3 disables L1, L2, L5, L6; l4 disables L2, L3, L5; l5 disables L2, L6;
loop suppression principle: when a vehicle enters a certain guide rail coil, the vehicle must pass through an upstream guide rail coil, and the upstream guide rail coil should perform loop suppression on a downstream coil according to a time sequence, namely a person port in front of a circuit board of the upstream guide rail coil should be connected with a local circulation prohibition port of a circuit board of the downstream guide rail coil; as shown in fig. 2, L1 inhibited L2; l6 inhibits L5; l3 inhibits L4; l2 or L5 inhibited L3.
Example 2
In the present embodiment, the difference from embodiment 1 is that, in step 1, the final travel speed is: the average value of different reliable speeds of the vehicle on each branch road section enables the final running speed to be more consistent with the theoretical speed of the vehicle on each branch road section, and improves the service level and the running efficiency of the system.
Example 3
In the present embodiment, the difference from embodiment 1 is that, in step 1, the final travel speed is: the lowest value of the reliable speed of the vehicle on each branch road section ensures that the vehicle can run more safely on the branch road section, the overspeed phenomenon can not occur, and the system safety is improved.
Example 4
As shown in fig. 2, the invention further discloses a vehicle protection system, which comprises a guide rail 1, a trackside equipment box 2 and an induction assembly, wherein the induction assembly comprises a plurality of guide rail coils 3, the guide rail coils 3 are laid along the length direction of the guide rail 1, a back plate produced by the method of embodiment 1 is arranged in the trackside equipment box 2, and the guide rail coils 3 are in communication connection with the back plate.
In the embodiment, the backboard is produced in a standardized manner by presetting the running speeds of the vehicles at the curved road section and the turnout section, so that the backboard can be installed and used after leaving a factory without secondary jumper configuration, the construction efficiency and the construction quality of the vehicle protection system are improved, and the technical requirements of system debugging engineers are reduced.
Example 5
As shown in fig. 3, the present embodiment is different from embodiment 4 in that at least two sensing assemblies are included, and each two sensing assemblies are in communication connection with each other.
Specifically, the number of the induction assemblies is two, the two induction assemblies have the same function, and a guide rail coil 3 in each induction assembly is in communication connection with a trackside equipment box 2 on the track side, so that the main function and the standby function are achieved, and the phenomenon that a protection system of a vehicle fails when a certain induction assembly is damaged is prevented;
due to the addition of an inductive component, the configuration of the patch cord of the backplane should be changed accordingly, in which case the configuration of the backplane follows the principle of cross-checking: the track coil 3 receives an "occupied" signal from the track coil on the other upstream side, an open-loop control port of a circuit board of the downstream track coil 3 is connected to an inhibit output port of the circuit board of the upstream track coil, as shown in fig. 3, L1 is connected to N1, N2 is connected to L1, L2 is connected to N2, N3 is connected to L2, L3 is connected to N3 and N4, N7 is connected to L3, L4 is connected to N7, N8 is connected to L4, N4 is connected to L5, L5 is connected to N5, N5 is connected to L6, and L6 is connected to N6.
Preferably, two adjacent induction assemblies are arranged in a staggered manner, that is, the guideway coils 3 in the two induction assemblies are arranged in a staggered manner, so that no communication gap exists in the process that a vehicle enters the other guideway coil 3 from one guideway coil 3, and the running safety of the vehicle is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A design method of an automatic protection system of a vehicle is characterized by comprising the following steps:
step 1, customizing vehicle speed, acquiring the reliable speed of the vehicle on each branch road section according to the system operation capacity, and taking a certain value from intervals of different reliable speeds as the final running speed of the vehicle on the branch road section;
step 2, arranging a guide rail coil: designing the length of the guide rail coil (3) according to the final driving speed obtained in the step 1, and presetting the guide rail coil (3) with the length on a specific turnout section map;
step 3, configuring a back plate: designing a jumper configuration scheme of the road section back plate according to a preset scheme of the guide rail coil (3) on the turnout road section in the step 2;
step 4, back plate production: and 3, producing and debugging the backplane according to the jumper configuration scheme of the backplane in the step 3.
2. The method for designing an automatic vehicle protection system according to claim 1, wherein in step 1, the final driving speed is: the average value of the reliable speed of the vehicle at each branch.
3. The method for designing an automatic vehicle protection system according to claim 1, wherein in step 1, the final driving speed is: the lowest value of the reliable speed of the vehicle at each branch.
4. A vehicle protection system, comprising a guide rail (1), a trackside equipment box (2) and an induction assembly, wherein the induction assembly comprises a plurality of guide rail coils (3), the plurality of guide rail coils (3) are laid along the length direction of the guide rail (1), a backboard produced according to any one of claims 1-3 is arranged in the trackside equipment box (2), and the guide rail coils (3) are in communication connection with the backboard.
5. The vehicle protection system of claim 4, comprising at least two of said inductive assemblies, each two of said inductive assemblies communicatively coupled therebetween.
6. The vehicle protection system of claim 5, wherein adjacent two of said inductive assemblies are staggered.
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| CN202110443904.1A CN113335344B (en) | 2021-04-23 | 2021-04-23 | Design method of vehicle automatic protection system and protection system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1429726A (en) * | 2003-01-30 | 2003-07-16 | 沈湧 | Railway communication system of small sized vehicle |
| CA2692450A1 (en) * | 2007-07-10 | 2009-01-15 | Advanced Transport Systems Limited | Automatic vehicle guidance protection system |
| KR101463250B1 (en) * | 2008-05-26 | 2014-11-18 | 주식회사 포스코 | Method for platooning of vehicles in an automated vehicle system |
| KR101145645B1 (en) * | 2010-10-20 | 2012-05-24 | 한국철도기술연구원 | A method to transmit the state information of vehicles and infrastructures for personal rapid transit system |
| US8725325B1 (en) * | 2010-12-10 | 2014-05-13 | Cybertran International Inc. | Method of controlling emergency braking in fixed guideway transportation system using dynamic block control |
| US8807048B2 (en) * | 2012-04-28 | 2014-08-19 | Valentin Ivanov | Triple rail PRT transportation system |
| CN109800828B (en) * | 2017-11-17 | 2020-10-20 | 比亚迪股份有限公司 | Vehicle positioning system and positioning method based on two-dimensional code |
| CN108827283A (en) * | 2018-07-02 | 2018-11-16 | 柳州铁道职业技术学院 | A kind of locomotive position detection circuit, detection method and system |
| CN111970638A (en) * | 2020-08-27 | 2020-11-20 | 中铁二院工程集团有限责任公司 | Automatic vehicle protection method and system based on space positioning |
| CN111891193A (en) * | 2020-08-27 | 2020-11-06 | 中铁二院工程集团有限责任公司 | Method and system for determining PRT guide rail block interval state |
| CN212435942U (en) * | 2020-08-27 | 2021-01-29 | 中铁二院工程集团有限责任公司 | PRT guide rail block interval state acquisition module |
| CN112339792B (en) * | 2020-11-10 | 2022-07-19 | 北京天润海图科技有限公司 | Intelligent personal rapid transportation system based on communication control |
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