CN105292188A - System and method for analyzing running states of railway vehicles on basis of absolute displacements - Google Patents
System and method for analyzing running states of railway vehicles on basis of absolute displacements Download PDFInfo
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- CN105292188A CN105292188A CN201510680323.4A CN201510680323A CN105292188A CN 105292188 A CN105292188 A CN 105292188A CN 201510680323 A CN201510680323 A CN 201510680323A CN 105292188 A CN105292188 A CN 105292188A
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Abstract
The invention relates to a system and a method for analyzing running states of railway vehicles on the basis of absolute displacements, and solves the problem of influence on anti-collision control due to inaccurate obtaining of parameters of the running states of the railway vehicles in the anti-collision control. The system comprises at least two railway vehicles running on the same rail, wherein a speed and displacement information acquisition unit, a position state detection unit, a processing unit and a network connection unit for carrying out mutual communication between the railway vehicles are arranged on each railway vehicle; each speed and displacement information acquisition unit and the corresponding position state detection unit are connected with the corresponding processing unit respectively; and each network connection unit is connected with the corresponding processing unit and the corresponding speed and displacement information acquisition unit respectively. The system and the method which are disclosed by the invention have the advantage that the running states of the railway vehicles are analyzed and judged by virtue of the absolute displacement values, thus the problem of high influence of the conditions of a rail path, a terrain environment and the like is solved compared with a method for calculating a distance by virtue of GPS equipment.
Description
Technical field
The present invention relates to a kind of anticollision technical field, especially relate to the guideway vehicle running state analysis system and method based on absolute displacement of Accurate Analysis rail vehicle movement relation and distance in the control of a kind of anticollision.
Background technology
Along with the quick growth of railway electrification operation mileage, the quantity of operation vehicle for contact wire also increases rapidly thereupon, and the safe pressure of rail vehicle in the situations such as operation, construction operation also sharply increases.Although by the every safety management system strengthening, improve rail vehicle, largely decrease the safety hazard of rail vehicle in operation, operation process, still there is the important hidden danger that driving, job safety are jeopardized in operation against rules, management blind area etc.
Therefore be necessary that Study and Development is suitable for the anticollision device of the feature such as vehicle track running, operation, for meeting the crashproof requirement between current track car, eliminate the hidden danger that mutual collision case occurs rail vehicle, ensure the safety of rail vehicle in operation, operation process.
The distance used between rail vehicle is generally needed in anticollision controls, and adopt GPS device in prior art to calculate the distance obtaining and connect between rail vehicle, and adopt during GPS device and easily affect by the condition such as track routes, terrain environment, make the result of calculating inaccurate, affect anticollision and control.
Summary of the invention
The present invention mainly solves during anticollision controls that to obtain vehicle track running state parameter inaccurate, affect anticollision control problem, provide a kind of anticollision control in running state parameter analysis accurately based on the guideway vehicle running state analysis system of absolute displacement.
Present invention also offers a kind of anticollision control in running state parameter analysis accurately based on the guideway vehicle running state analysis method of absolute displacement.
The present invention is applicable to rail vehicle etc. and certainly takes turns movement special equipment, rail vehicle etc. from wheel movement special equipment mean run on state's iron Business Line rail vehicle, road maintainance machinery, Operation Van and other there is detection, the docking facility of more than 80km/h self-operating ability, hereinafter referred to as rail vehicle.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: a kind of guideway vehicle running state analysis system based on absolute displacement, comprise at least two rail vehicles run on the same track, rail vehicle is provided with speed displacement information acquisition unit, location status detecting unit, processing unit and carry out the network connection unit of mutual communication between rail vehicle, speed displacement information acquisition unit is connected with processing unit respectively with location status detecting unit, network connection unit respectively with processing unit, speed displacement information acquisition unit is connected,
Speed displacement information acquisition unit: the absolute displacement data of the running velocity of Real-time Obtaining rail vehicle, velocity phase and rail vehicle;
Location status detecting unit: detect rail vehicle and whether even hang with other rail vehicles;
Processing unit: judge rail vehicle absolute displacement values variation tendency relation, rail vehicle front and back position relation, judges the movement relation between two rail vehicles according to the variation tendency relation of front and back position relation and rail vehicle absolute displacement values between rail vehicle.
The present invention adopts speed displacement information acquisition unit to be GYK equipment, and can export absolute displacement values, absolute displacement values changes the also corresponding change of numerical value increasing or decreasing according to service direction.And can running velocity be exported.Each rail vehicle is all provided with speed displacement information acquisition unit, is obtained the running state of other rail vehicles by network connection unit, be i.e. the information such as absolute displacement values, running velocity.Processing unit is according to the absolute displacement values of Adjacent vehicles by judging and calculating the running state between rail vehicle, i.e. movement relation and rail vehicle spacing between rail vehicle, for anticollision strategy provides accurate failure-free data.The present invention adopts speed displacement information acquisition unit, judges vehicle track running state by absolute displacement values analysis, compares and adopts GPS device to calculate distance, overcome and affect larger problem by the condition such as track routes, terrain environment.
Processing unit comprises variation tendency relation judge module, front and back position relation judge module and running state analysis module, not shown.Network connection unit is connected with variation tendency relation judging unit and front and back position relation judging unit respectively, speed displacement information acquisition unit is connected with variation tendency relation judging unit respectively and front and back position relation judging unit connects, location status detecting unit is connected with variation tendency relation judging unit and front and back position relation judging unit respectively, and variation tendency relation judging unit is connected with running state analysis unit respectively with front and back position relation judging unit.
As a kind of preferred version, between described vehicle, location status detecting unit comprises rang sensor, and rang sensor is arranged on rail vehicle rear and front end respectively.Rang sensor is arranged on rail vehicle termination, and along rail vehicle length direction towards outside termination, namely detects to this end front of rail vehicle.Rail vehicle wherein on one end rang sensor object detected forward, detect the distance value of object, if distance value drops in default distance value, then can judge that this rang sensor of rail vehicle institute at one end connects with another rail vehicle to hang, and the front and back position relation of this car of walking direction of advancing according to rail vehicle and adjacent car.During in order to analyze movement relation and distance between two rail vehicles, under situation need being affiliated in advance, confirm front and back position relation between two rail vehicles.Location status detecting unit is for detecting this car at front or adjacent car front.
Based on a guideway vehicle running state analysis method for absolute displacement, comprise the following steps:
S1., under rail vehicle connects extension state, the variation tendency relation of rail vehicle absolute displacement values is detected;
S2., under rail vehicle connects extension state, the front and back position relation between rail vehicle is detected;
S3., after rail vehicle disengaging connects extension, the movement relation between two rail vehicles is determined according to the variation tendency relation of absolute displacement values between front and back position relation between rail vehicle and rail vehicle;
S4. according to the absolute displacement values of rail vehicle, the distance between rail vehicle is determined.
The present invention is based on absolute displacement values analysis and judge position relationship and distance between rail vehicle, compare and adopt GPS device to calculate distance, overcome and affect larger problem by the condition such as track routes, terrain environment.Movement relation and distance value between two rail vehicles obtained, for follow-up anticollision strategy provides data basis.The present invention is not only applicable to operation vehicle for contact wire and is also applicable to other rail vehicles.
As a kind of preferred version, in step S1, determine that the variation tendency relational process of rail vehicle absolute displacement values comprises:
S11. the rail vehicle whether company's of being in extension state is judged, if the rang sensor of this car of rail vehicle wherein one end detects object forward, detect the distance value between object, if distance value drops in default distance value, then judge that this rang sensor place end of this car and adjacent car are connected to the hanging;
S12. according to the variation tendency of rail vehicle absolute displacement separately, the absolute displacement values change determining between rail vehicle is homophase or anti-phase.Uncertain due to absolute displacement values variation tendency, needs rail vehicle to connect to hang to run a period of time and determines.Determine that between rail vehicle, whether absolute displacement values variation tendency is consistent.
As a kind of preferred version, in described step S2, determine that the process of the front and back position relation between rail vehicle comprises:
S21. the rail vehicle whether company's of being in extension state is judged, if the supersonic range finder of this car of rail vehicle wherein one end detects object forward, and the distance value calculated between object, if distance value drops in default distance value, then judge that this supersonic range finder place end of this car and adjacent car are connected to the hanging; If rail vehicle wherein on one end supersonic range finder object detected forward, then supersonic range finder calculates the distance value of object, distance value is sent to processing unit, in processing unit, be previously provided with a distance value, namely two cars connect suitable distance scope when hanging between two rail vehicles.If the distance value calculated drops in default distance value, then can judge that this supersonic range finder institute of rail vehicle at one end connects with another rail vehicle and hang.
S22. the context of this car and adjacent car is judged according to rail vehicle moving direction, detect rail vehicle direct of travel, one end that Ruo Benche is relative with direct of travel even hangs with adjacent car, judge that this parking stall is in front on direct of travel, adjacent parking stall is in rear, otherwise connect in this car direct of travel one end and hang with adjacent car, then this parking stall is in rear, and adjacent parking stall is in front.Processing unit receives rail vehicle direction of travel information, this car of walking direction of advancing according to rail vehicle and the front and back position relation of adjacent car.
As a kind of preferred version, in described step S3, determine that the method for the movement relation between two rail vehicles is:
A. be the absolute displacement values of Ben Che and adjacent car be all increase progressively and the preceding situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is front, and adjacent truck position is rear; If the rail vehicle absolute displacement values of motion successively decreases, then this car is rear, and adjacent car is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is rear, and adjacent car is front; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, front truck each other;
B. be the absolute displacement values of Ben Che and adjacent car be all successively decrease and the preceding situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is rear, and adjacent truck position is front; If the rail vehicle absolute displacement values of motion successively decreases, then this car is front, and adjacent car is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is front, and adjacent car is rear; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, rear car each other;
C. be the absolute displacement values of Ben Che and adjacent car be all increase progressively and the posterior situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is rear, and adjacent truck position is front; If the rail vehicle absolute displacement values of motion successively decreases, then this car is front, and adjacent car is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is front, and adjacent car is rear; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, rear car each other;
D. be the absolute displacement values of Ben Che and adjacent car be all successively decrease and the posterior situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is front, and adjacent truck position is rear; If the rail vehicle absolute displacement values of motion successively decreases, then this car is rear, and adjacent car is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is rear, and adjacent car is front; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, front truck each other;
E. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, and the preceding situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; Ruo Benche absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are contrary, rear car each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are contrary, front truck each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this car is front, and adjacent car is rear; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, and two car service directions are identical, then two vehicle track running directions are identical, and this car is rear, and adjacent car is front;
F. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, and the preceding situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent car is rear;
G. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, and the posterior situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; Ruo Benche absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, then two vehicle track running directions are identical, and this truck position is rear, and adjacent car is front;
H. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, and the posterior situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear.
According to the predetermined two rail vehicle position relationships of step S1 and S2 and absolute displacement values variation tendency, judge the movement relation of two rail vehicles under different situations that are static, that only have a movement, the movement simultaneously of two cars between a rail vehicle.For follow-up anticollision strategy provides the movement relation of two rail vehicles.
As a kind of preferred version, in step S4, determine that the distance process between rail vehicle comprises:
S41. two rail vehicles depart from connect hang time, respectively minute book car and adjacent car depart from the absolute displacement values connected when hanging separately, and using the absolute displacement values position of record as respective basic point;
S42. this car calculates the difference M of the absolute displacement values between current location and its basic point, adjacent car calculates the difference N of the absolute displacement values between current location and its basic point, by the difference M of absolute displacement values compared with the difference N of absolute displacement values, the absolute value of the difference of acquisition two values is the distance between Ben Che and adjacent car.
Therefore, advantage of the present invention is: adopt absolute displacement values analysis to judge vehicle track running state, compares and adopts GPS device to calculate distance, overcome and affect larger problem by the condition such as track routes, terrain environment.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural frames diagram of the present invention;
Accompanying drawing 2 is a kind of method flow schematic diagrams of the present invention.
1-speed displacement information acquisition unit 2-processing unit 3-network connection unit 4-location status detecting unit.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
A kind of guideway vehicle running state analysis system based on absolute displacement of the present embodiment, as shown in Figure 1, comprise at least two rail vehicles run on the same track, rail vehicle is for certainly taking turns movement special equipment.Rail vehicle is provided with the speed displacement information acquisition unit 1 exporting absolute displacement values and running velocity, the processing unit 2 analyzed rail vehicle movement relation and distance, the network connection unit 3, the location status detecting unit 4 that carry out mutual communication between rail vehicle, speed displacement information acquisition unit is connected with processing unit respectively with location status detecting unit, and network connection unit is connected with processing unit, speed displacement information acquisition unit respectively.
Speed displacement information acquisition unit: the absolute displacement data of the running velocity of Real-time Obtaining rail vehicle, velocity phase and rail vehicle;
Location status detecting unit: detect rail vehicle and whether even hang with other rail vehicles;
Processing unit: judge rail vehicle absolute displacement values variation tendency relation, rail vehicle front and back position relation, judges the movement relation between two rail vehicles according to the variation tendency relation of front and back position relation and rail vehicle absolute displacement values between rail vehicle.
Processing unit 2 comprises variation tendency relation judge module, front and back position relation judge module and running state analysis module, not shown.Network connection unit is connected with variation tendency relation judging unit and front and back position relation judging unit respectively, speed displacement information acquisition unit is connected with variation tendency relation judging unit respectively and front and back position relation judging unit connects, location status detecting unit is connected with variation tendency relation judging unit and front and back position relation judging unit respectively, and variation tendency relation judging unit is connected with running state analysis unit respectively with front and back position relation judging unit.
In the present embodiment, between vehicle, location status detecting unit 4 adopts rang sensor, and rang sensor is arranged on rail vehicle rear and front end respectively.Rang sensor, respectively towards end front, place, detects end front, place.
Based on a guideway vehicle running state analysis method for absolute displacement, for two rail vehicles in the present embodiment, method comprises the following steps:
S1., under rail vehicle connects extension state, the variation tendency relation of rail vehicle absolute displacement values is detected.Detailed process comprises:
S11. the rail vehicle whether company's of being in extension state is judged, if the rang sensor of this car of rail vehicle wherein one end detects object forward, detect the distance value between object, if distance value drops in default distance value, then judge that this rang sensor place end of this car and adjacent car are connected to the hanging.
Because absolute displacement values data variation trend is uncertain, running a period of time under needing two rail vehicles to connect extension situation just can judge.
S12. according to the variation tendency of rail vehicle absolute displacement separately, the absolute displacement values change determining between rail vehicle is homophase or anti-phase.Speed displacement information acquisition unit is that GYK exports absolute displacement values, and after the start of speed displacement information acquisition unit, absolute displacement values is initialized as 0, and direction is random, and circulation exports.When service direction changes, absolute displacement values increasing or decreasing also can correspondingly change, and as being increase progressively a direction service hours value, numerical value just becomes and successively decreases after direction changes.When two rail vehicles connect extension advance, if absolute displacement values is all increasing or decreasing, then the absolute displacement values variation tendency relation of two rail vehicles is homophases, if one increases progressively another and successively decreases, then the absolute displacement values variation tendency relation of two rail vehicles is anti-phase.Adopting two rail vehicle absolute displacement values variation tendencies to close in the present embodiment is homophase relation.
S2., under rail vehicle connects extension state, the front and back position relation between rail vehicle is detected; Specifically comprise:
S21. the rail vehicle whether company's of being in extension state is judged, if the supersonic range finder of this car of rail vehicle wherein one end detects object forward, calculate the distance value between object, if distance value drops in default distance value, then judge that this supersonic range finder place end of this car and adjacent car are connected to the hanging; Predeterminable range value is arranged on determining positions on rail vehicle according to supersonic range finder, and the more forward end in installation site then this predeterminable range value scope is less.The distance of 1m-2m is generally set.
S22. the context of this car and adjacent car is judged according to rail vehicle moving direction, detect rail vehicle direct of travel, one end that Ruo Benche is relative with direct of travel even hangs with adjacent car, judge that this parking stall is in front on direct of travel, adjacent parking stall is in rear, otherwise connect in this car direct of travel one end and hang with adjacent car, then this parking stall is in rear, and adjacent parking stall is in front.
If rail vehicle wherein on one end supersonic range finder object detected forward, then supersonic range finder calculates the distance value of object, distance value is sent to processing unit, in processing unit, be previously provided with a distance value, namely two cars connect suitable distance scope when hanging between two rail vehicles.If the distance value calculated drops in default distance value, then can judge that this supersonic range finder institute of rail vehicle at one end connects with another rail vehicle and hang.Processing unit receives rail vehicle direction of travel information simultaneously, this car of walking direction of advancing according to rail vehicle and the front and back position relation of adjacent car, when one end that this car direct of travel is relative connects adjacent car, judge that this parking stall is in front on direct of travel, adjacent parking stall is in rear, otherwise connect adjacent car on this car direct of travel one end, then this parking stall is in rear, and adjacent parking stall is in front.
S3. the movement relation between two rail vehicles is judged according to the variation tendency relation of front and back position relation and rail vehicle absolute displacement values between rail vehicle; Concrete grammar comprises:
A. be the absolute displacement values of Ben Che and adjacent car be all increase progressively and the preceding situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is front, and adjacent truck position is rear; If the rail vehicle absolute displacement values of motion successively decreases, then this car is rear, and adjacent car is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is rear, and adjacent car is front; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, front truck each other;
B. be the absolute displacement values of Ben Che and adjacent car be all successively decrease and the preceding situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is rear, and adjacent truck position is front; If the rail vehicle absolute displacement values of motion successively decreases, then this car is front, and adjacent car is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is front, and adjacent car is rear; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, rear car each other;
C. be the absolute displacement values of Ben Che and adjacent car be all increase progressively and the posterior situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is rear, and adjacent truck position is front; If the rail vehicle absolute displacement values of motion successively decreases, then this car is front, and adjacent car is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is front, and adjacent car is rear; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, rear car each other;
D. be the absolute displacement values of Ben Che and adjacent car be all successively decrease and the posterior situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is front, and adjacent truck position is rear; If the rail vehicle absolute displacement values of motion successively decreases, then this car is rear, and adjacent car is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is rear, and adjacent car is front; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, front truck each other;
E. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, and the preceding situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; Ruo Benche absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are contrary, rear car each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are contrary, front truck each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this car is front, and adjacent car is rear; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, and two car service directions are identical, then two vehicle track running directions are identical, and this car is rear, and adjacent car is front;
F. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, and the preceding situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent car is rear;
G. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, and the posterior situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; Ruo Benche absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, then two vehicle track running directions are identical, and this truck position is rear, and adjacent car is front;
H. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, and the posterior situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear.
S4. according to the absolute displacement values of rail vehicle, the distance between rail vehicle is determined.Process comprises:
S41. two rail vehicles depart from connect hang time, respectively minute book car and adjacent car depart from the absolute displacement values connected when hanging separately, and using the absolute displacement values position of record as respective basic point;
S42. this car calculates the difference M of the absolute displacement values between current location and its basic point, adjacent car calculates the difference N of the absolute displacement values between current location and its basic point, by the difference M of absolute displacement values compared with the difference N of absolute displacement values, the absolute value of the difference of acquisition two values is the distance between Ben Che and adjacent car.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the terms such as speed displacement information acquisition unit, processing unit, network connection unit, location status detecting unit herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (7)
1. the guideway vehicle running state analysis system based on absolute displacement, it is characterized in that: comprise at least two rail vehicles run on the same track, rail vehicle is provided with speed displacement information acquisition unit (1), location status detecting unit (4), processing unit (2) and carries out the network connection unit (3) of mutual communication between rail vehicle, speed displacement information acquisition unit is connected with processing unit respectively with location status detecting unit, and network connection unit is connected with processing unit, speed displacement information acquisition unit respectively;
Speed displacement information acquisition unit: the absolute displacement data of the running velocity of Real-time Obtaining rail vehicle, velocity phase and rail vehicle;
Location status detecting unit: detect rail vehicle and whether even hang with other rail vehicles;
Processing unit: judge rail vehicle absolute displacement values variation tendency relation, rail vehicle front and back position relation, judges the movement relation between two rail vehicles according to the variation tendency relation of front and back position relation and rail vehicle absolute displacement values between rail vehicle.
2. the guideway vehicle running state analysis system based on absolute displacement according to claim 1, it is characterized in that described location status detecting unit (4) comprises rang sensor, rang sensor is arranged on rail vehicle rear and front end respectively.
3., based on a guideway vehicle running state analysis method for absolute displacement, adopt the system of power any one of 1-2, it is characterized in that: comprise the following steps:
S1., under rail vehicle connects extension state, the variation tendency relation of rail vehicle absolute displacement values is detected;
S2., under rail vehicle connects extension state, the front and back position relation between rail vehicle is detected;
S3., after rail vehicle disengaging connects extension, the movement relation between two rail vehicles is judged according to the variation tendency relation of absolute displacement values between front and back position relation between rail vehicle and rail vehicle;
S4. according to the absolute displacement values of rail vehicle, the distance between rail vehicle is determined.
4. the guideway vehicle running state analysis method based on absolute displacement according to claim 3, is characterized in that the variation tendency relational process determining rail vehicle absolute displacement values in step S1 comprises:
S11. the rail vehicle whether company's of being in extension state is judged, if the rang sensor of this car of rail vehicle wherein one end detects object forward, calculate the distance value between object, if distance value drops in default distance value, then judge that this rang sensor place end of this car and adjacent car are connected to the hanging;
S12. according to the variation tendency of rail vehicle absolute displacement separately, the absolute displacement values change determining between rail vehicle is homophase or anti-phase.
5. the guideway vehicle running state analysis method based on absolute displacement according to claim 3, is characterized in that the process of the front and back position relation determined in described step S2 between rail vehicle comprises:
S21. the rail vehicle whether company's of being in extension state is judged, if the supersonic range finder of this car of rail vehicle wherein one end detects object forward, calculate the distance value between object, if distance value drops in default distance value, then judge that this supersonic range finder place end of this car and adjacent car are connected to the hanging;
S22. the context of this car and adjacent car is judged according to rail vehicle direct of travel, detect rail vehicle direct of travel, one end that Ruo Benche is relative with direct of travel even hangs with adjacent car, judge that this parking stall is in front on direct of travel, adjacent parking stall is in rear, otherwise connect in this car direct of travel one end and hang with adjacent car, then this parking stall is in rear, and adjacent parking stall is in front.
6. the guideway vehicle running state analysis method based on absolute displacement according to claim 3 or 4 or 5, is characterized in that the method determining the movement relation between two rail vehicles in described step S3 is:
A. be the absolute displacement values of Ben Che and adjacent car be all increase progressively and the preceding situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is front, and adjacent truck position is rear; If the rail vehicle absolute displacement values of motion successively decreases, then this car is rear, and adjacent car is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is rear, and adjacent car is front; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, front truck each other;
B. be the absolute displacement values of Ben Che and adjacent car be all successively decrease and the preceding situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is rear, and adjacent truck position is front; If the rail vehicle absolute displacement values of motion successively decreases, then this car is front, and adjacent car is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is front, and adjacent car is rear; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, rear car each other;
C. be the absolute displacement values of Ben Che and adjacent car be all increase progressively and the posterior situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is rear, and adjacent truck position is front; If the rail vehicle absolute displacement values of motion successively decreases, then this car is front, and adjacent car is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is front, and adjacent car is rear; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, rear car each other;
D. be the absolute displacement values of Ben Che and adjacent car be all successively decrease and the posterior situation of this car when detecting in step S1 and S2 that front and back position between absolute displacement values variation tendency relation and rail vehicle closes:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, no matter Ben Che or the motion of adjacent car, if the rail vehicle absolute displacement values of motion increases progressively, then this truck position is front, and adjacent truck position is rear; If the rail vehicle absolute displacement values of motion successively decreases, then this car is rear, and adjacent car is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical, and this car is rear, and adjacent car is front; Ruo Benche absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, then two rail vehicle directions are contrary, front truck each other;
E. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, and the preceding situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; Ruo Benche absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two vehicle track running directions are contrary, rear car each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are contrary, front truck each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this car is front, and adjacent car is rear; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, and two car service directions are identical, then two vehicle track running directions are identical, and this car is rear, and adjacent car is front;
F. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, and the preceding situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent car is rear;
G. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values successively decreases, adjacent car absolute displacement values increases progressively, and the posterior situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; Ruo Benche absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; If adjacent car absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, then two vehicle track running directions are identical, and this truck position is rear, and adjacent car is front;
H. when detecting in step S1 and S2 that between absolute displacement values variation tendency relation and rail vehicle, front and back position pass is that this car absolute displacement values increases progressively, adjacent car absolute displacement values successively decreases, and the posterior situation of this car:
When two rail vehicles all remain static, the information determined according to step S2 is the position relationship of two rail vehicles;
When only having the state of a rail vehicle movement, Ruo Benche absolute displacement values increases progressively, then this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values increases progressively, then this truck position is front, and adjacent truck position is rear; If adjacent car absolute displacement values successively decreases, then this truck position is rear, and adjacent truck position is front;
When two rail vehicles all move, Ruo Benche and adjacent car absolute displacement values all increase progressively, then two rail vehicle sense of motions are contrary, front truck each other; Ruo Benche and adjacent car absolute displacement values all successively decrease, then two rail vehicle sense of motions are contrary, rear car each other; Ruo Benche absolute displacement values increases progressively, and adjacent car absolute displacement values successively decreases, then two vehicle track running directions are identical, and this truck position is rear, and adjacent truck position is front; Ruo Benche absolute displacement values successively decreases, and adjacent car absolute displacement values increases progressively, then two vehicle track running directions are identical, and this truck position is front, and adjacent truck position is rear.
7. the guideway vehicle running state analysis method based on absolute displacement according to claim 3 or 4 or 5, is characterized in that determining in step S4 that the distance process between rail vehicle comprises:
S41. rail vehicle depart from connect hang time, respectively minute book car and adjacent car depart from the absolute displacement values connected when hanging separately, and using the absolute displacement values position of record as respective basic point;
S42. this car calculates the difference M of the absolute displacement values between current location and its basic point, adjacent car calculates the difference N of the absolute displacement values between current location and its basic point, by the difference M of absolute displacement values compared with the difference N of absolute displacement values, the absolute value of the difference of acquisition two values is the distance between Ben Che and adjacent car.
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