CN105292188B - Rail vehicle running state analysis system and method based on absolute displacement - Google Patents
Rail vehicle running state analysis system and method based on absolute displacement Download PDFInfo
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- CN105292188B CN105292188B CN201510680323.4A CN201510680323A CN105292188B CN 105292188 B CN105292188 B CN 105292188B CN 201510680323 A CN201510680323 A CN 201510680323A CN 105292188 B CN105292188 B CN 105292188B
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Abstract
The present invention relates to a kind of rail vehicle running state analysis system and method based on absolute displacement.Solve acquisition vehicle track running state parameter in anticollision control inaccurate, the problem of influence anticollision is controlled.System includes the railcar of at least two operations on the same track, the network connection unit mutually communicated between speed displacement information acquisition unit, location status detection unit, processing unit and progress railcar is provided with railcar, speed displacement information acquisition unit and location status detection unit are connected with processing unit respectively, and network connection unit is connected with processing unit, speed displacement information acquisition unit respectively.It is an advantage of the invention that judging vehicle track running state using absolute displacement values analysis, distance is calculated compared to using GPS device, the problem of being influenceed larger by conditions such as track routes, terrain environments is overcome.
Description
Technical field
The present invention relates to a kind of anticollision technical field, Accurate Analysis railcar in being controlled more particularly, to a kind of anticollision
The rail vehicle running state analysis system and method based on absolute displacement of movement relation and distance.
Background technology
As the rapid growth of mileage is runed in railway electrification, the quantity of operation vehicle for contact wire is also increased rapidly therewith, rail
Safe pressure of the road car when operation, construction operation also increased dramatically.Although by the items for strengthening, improving railcar
Safety management system, largely reduces unsafe factor of the railcar in operation, operation process, but still exist and disobey
Driving, the important hidden danger of job safety are jeopardized in chapter operation, management blind area etc..
It is therefore desirable to develop and develop the anticollision device, collision-prevention device for the features such as being suitable for vehicle track running, operation, for meeting mesh
Anticollision requirement between preceding railcar, eliminates the hidden danger that mutual collision accident occurs for railcar, ensures railcar in operation, operation
During safety.
Generally required in anticollision control and use distance between railcar, and in the prior art using GPS device come
Calculate acquisition and connect the distance between railcar, and easily influenceed when using GPS device by conditions such as track routes, terrain environments,
So that the result calculated is inaccurate, influence anticollision control.
The content of the invention
Vehicle track running state parameter is obtained in the present invention mainly solution anticollision control inaccurate, influence anticollision control
Processed the problem of, accurately the rail vehicle based on absolute displacement was transported there is provided running state parameter analysis in a kind of control of anticollision
Row state analysis system.
Present invention also offers the accurate rail based on absolute displacement of running state parameter analysis in a kind of control of anticollision
Road travel condition of vehicle analysis method.
The present invention is applied to railcar etc. and meant from movement special equipment, railcar etc. is taken turns from wheel movement special equipment in state
The railcar run on iron Business Line, road maintainance machinery, Operation Van and other have more than 80km/h self-operating abilities detection,
Maintenance of equipment, hereinafter referred to as railcar.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：One kind is based on absolute displacement
Rail vehicle running state analysis system, including at least two operation railcars on the same track set in railcar
It is equipped with what is mutually communicated between speed displacement information acquisition unit, location status detection unit, processing unit and progress railcar
Network connection unit, speed displacement information acquisition unit and location status detection unit are connected with processing unit respectively, and network connects
Order member is connected with processing unit, speed displacement information acquisition unit respectively；
Speed displacement information acquisition unit：The speed of service of acquisition railcar, velocity phase and railcar is absolute in real time
Displacement data；
Location status detection unit：Detect whether railcar even hangs with other railcars；
Processing unit：Railcar absolute displacement values variation tendency relation, railcar front and back position relation are judged, according to track
Front and back position relation and the variation tendency relation of railcar absolute displacement values judge that the motion between two railcars is closed between car
System.
The present invention, which uses speed displacement information acquisition unit, to be GYK equipment, can export absolute displacement values, absolute position
Shifting value changes numerical value increasing or decreasing according to traffic direction and also accordingly changed.And running velocity can be exported.Each railcar
On be both provided with speed displacement information acquisition unit, the running status of other railcars is obtained by network connection unit, i.e., absolutely
To information such as shift value, the speeds of service.Processing unit obtains rail according to the absolute displacement values of Adjacent vehicles by judgement and calculating
Running status between road car, i.e. track workshop movement relation and track vehicle headway, provide for anticollision strategy and accurately may be used
The data leaned on.The present invention uses speed displacement information acquisition unit, and vehicle track running state is judged by absolute displacement values analysis,
Distance is calculated compared to using GPS device, the problem of being influenceed larger by conditions such as track routes, terrain environments is overcome.
Processing unit includes variation tendency relation judge module, front and back position relation judge module and running state analysis mould
Block, not shown in figure.Network connection unit connects with variation tendency relation judging unit and front and back position relation judging unit respectively
Connect, speed displacement information acquisition unit is connected with variation tendency relation judging unit respectively and front and back position relation judging unit connects
Connect, location status detection unit is connected with variation tendency relation judging unit and front and back position relation judging unit respectively, change
Trend relation judging unit and front and back position relation judging unit are connected with running state analysis unit respectively.
As a kind of preferred scheme, location status detection unit includes range sensor, range sensor between the vehicle
It is separately mounted on railcar rear and front end.Range sensor is arranged on railcar termination, and along railcar length direction court
To outside termination, i.e., to detection in front of the railcar end.Range sensor detects forward object on railcar wherein one end, detection
Go out the distance value to object, if distance value falls in default distance value, may determine that railcar range sensor place
One end is even hung with another railcar, and the front and back position relation of this car of walking direction and adjacent car advanced according to railcar.In order to
Analyze between two railcars movement relation and apart from when, front and back position is closed between two railcars are confirmed in the case of need to being affiliated in advance
System.Location status detection unit is used to detect this car in preceding or adjacent car preceding.
A kind of rail vehicle running state analysis method based on absolute displacement, comprises the following steps：
S1. connect in railcar under extension state, detect the variation tendency relation of railcar absolute displacement values；
S2. connect in railcar under extension state, the front and back position relation between detection railcar；
S3. railcar departs from after even extension, according to absolute displacement between front and back position relation and railcar between railcar
The variation tendency relation of value determines the movement relation between two railcars；
S4. according to the absolute displacement values of railcar, the distance between railcar is determined.
The present invention judges position relationship and distance between railcar based on absolute displacement values analysis, compared to using GPS device
Distance is calculated, the problem of being influenceed larger by conditions such as track routes, terrain environments is overcome.The two track workshops motion obtained is closed
System and distance value, data basis is provided for follow-up anticollision strategy.The present invention is not only applicable to operation vehicle for contact wire and is also suitable
In other railcars.
Determine that the variation tendency relational process of railcar absolute displacement values includes as a kind of preferred scheme, in step S1：
S11. whether railcar is judged in even extension state, if the range sensor of this car of railcar wherein one end is examined forward
Object is measured, the distance between detection and object value, if distance value falls in default distance value, judge this car distance biography
End where sensor is connected to the hanging with adjacent car；
S12. according to the variation tendency of the respective absolute displacement of railcar, determine that the absolute displacement value changes between railcar are
With mutually or anti-phase.Due to not knowing, it is necessary to which railcar, which connects, hangs the progress of operation a period of time really for absolute displacement values variation tendency
It is fixed.Whether absolute displacement values variation tendency is consistent between determining railcar.
Determine that the process of the front and back position relation between railcar includes as a kind of preferred scheme, in the step S2：
S21. whether railcar is judged in even extension state, if the supersonic range finder of railcar this car wherein one end
Object is detected forward, and is calculated to the distance between object value, if distance value falls in default distance value, judges this car
End where the supersonic range finder is connected to the hanging with adjacent car；If supersonic range finder is detected forward on railcar wherein one end
Object, then supersonic range finder calculate the distance value of object, distance value is sent to processing unit, in processing unit
It is previously provided with a distance value, i.e. suitable distance scope when two cars are even hung between two railcars.If the distance value calculated falls
In default distance value, then it may determine that railcar supersonic range finder institute even hangs with another railcar at one end.
S22. the context of this car and adjacent car is judged according to railcar moving direction, railcar direct of travel is detected, if
This car one end relative with direct of travel even hangs with adjacent car, judges on direct of travel this parking stall in preceding, adjacent parking stall in rear, otherwise
Adjacent car even is hung with this car direct of travel one end, then this parking stall is in rear, and adjacent parking stall is in preceding.Processing unit receives railcar traveling side
To information, the front and back position relation of this car of walking direction and adjacent car for being advanced according to railcar.
As a kind of preferred scheme, the method that the movement relation between two railcars is determined in the step S3 is：
A. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Absolute displacement values for Ben Che and adjacent car are all incremented by and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the absolute position of railcar of motion
Shifting value is incremented by, then this truck position is preceding, and adjacent truck position is rear；If the railcar absolute displacement values of motion successively decrease, this car rear,
Adjacent car is preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical,
And this truck position, preceding, adjacent truck position is rear；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running direction phases
Together, and this car is rear, adjacent car is preceding；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcars are moved
In the opposite direction, rear car each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction,
Front truck each other；
B. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Absolute displacement values for Ben Che and adjacent car are all to successively decrease and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the absolute position of railcar of motion
Shifting value is incremented by, then this truck position is rear, and adjacent truck position is preceding；If the railcar absolute displacement values of motion successively decrease, this car preceding,
Adjacent car is rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical,
And this truck position, rear, adjacent truck position is preceding；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running direction phases
Together, and this car is preceding, adjacent car is rear；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcars are moved
In the opposite direction, front truck each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction,
Rear car each other；
C. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Absolute displacement values for Ben Che and adjacent car are all incremented by and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the absolute position of railcar of motion
Shifting value is incremented by, then this truck position is rear, and adjacent truck position is preceding；If the railcar absolute displacement values of motion successively decrease, this car preceding,
Adjacent car is rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical,
And this truck position, rear, adjacent truck position is preceding；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running direction phases
Together, and this car is preceding, adjacent car is rear；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcars are moved
In the opposite direction, front truck each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction,
Rear car each other；
D. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Absolute displacement values for Ben Che and adjacent car are all to successively decrease and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the absolute position of railcar of motion
Shifting value is incremented by, then this truck position is preceding, and adjacent truck position is rear；If the railcar absolute displacement values of motion successively decrease, this car rear,
Adjacent car is preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical,
And this truck position, preceding, adjacent truck position is rear；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running direction phases
Together, and this car is rear, adjacent car is preceding；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcars are moved
In the opposite direction, rear car each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction,
Front truck each other；
E. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
It is incremented by for this car absolute displacement values, adjacent car absolute displacement values successively decrease, and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is in preceding, adjacent parking stall
Put rear；Ruo Benche absolute displacement values successively decrease, then this truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values are incremented by,
Then this truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values successively decrease, this truck position is preceding, and adjacent truck position is rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track runnings are in opposite direction,
Rear car each other；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track runnings are in opposite direction, each other front truck；Ruo Benche
Absolute displacement values are incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this car, preceding, adjacent car is rear；
Ruo Benche absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, and two car traffic directions are identical, then two vehicle track running direction phases
Together, and this car is rear, adjacent car is preceding；
F. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Successively decrease for this car absolute displacement values, adjacent car absolute displacement values are incremented by, and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is in rear, adjacent parking stall
Put preceding；Ruo Benche absolute displacement values successively decrease, then this truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values are incremented by,
Then this truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values successively decrease, this truck position is rear, and adjacent truck position is preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then the two railcar directions of motion on the contrary,
Front truck each other；Ruo Benche and adjacent car absolute displacement values all successively decrease, then the two railcar directions of motion are on the contrary, rear car each other；Ruo Benche
Absolute displacement values are incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this truck position is in rear, adjacent car
Position is preceding；Ruo Benche absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, then two vehicle track running directions are identical, and this
Truck position is preceding, and adjacent car is rear；
G. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Successively decrease for this car absolute displacement values, adjacent car absolute displacement values are incremented by, and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is in preceding, adjacent parking stall
Put rear；Ruo Benche absolute displacement values successively decrease, then this truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values are incremented by,
Then this truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values successively decrease, this truck position is preceding, and adjacent truck position is rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then the two railcar directions of motion on the contrary,
Rear car each other；Ruo Benche and adjacent car absolute displacement values all successively decrease, then the two railcar directions of motion are on the contrary, front truck each other；Ruo Benche
Absolute displacement values are incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this truck position is in preceding, adjacent car
Position is rear；Ruo Benche absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, then two vehicle track running directions are identical, and this
Truck position is rear, and adjacent car is preceding；
H. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
It is incremented by for this car absolute displacement values, adjacent car absolute displacement values successively decrease, and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is in rear, adjacent parking stall
Put preceding；Ruo Benche absolute displacement values successively decrease, then this truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values are incremented by,
Then this truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values successively decrease, this truck position is rear, and adjacent truck position is preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then the two railcar directions of motion on the contrary,
Front truck each other；Ruo Benche and adjacent car absolute displacement values all successively decrease, then the two railcar directions of motion are on the contrary, rear car each other；Ruo Benche
Absolute displacement values are incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this truck position is in rear, adjacent car
Position is preceding；Ruo Benche absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, then two vehicle track running directions are identical, and this
Truck position is preceding, and adjacent truck position is rear.
According to the predetermined two railcars position relationship of step S1 and S2 and absolute displacement values variation tendency, two are judged
Movement relation of the railcar under different situations static, that only one movement, two cars are simultaneously mobile between a railcar.To be rear
Continuous anticollision strategy provides the movement relation of two railcars.
Determine that the distance between railcar process includes as a kind of preferred scheme, in step S4：
S41. when two railcars depart from and even hung, minute book car and adjacent car depart from respective absolute displacement when even hanging respectively
Value, and it regard 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 calculate current location with
The difference N of absolute displacement values between its basic point, the difference M of absolute displacement values and absolute displacement values difference N are compared, and are obtained two and are worth
The absolute value of difference the distance between be this car with adjacent car.
Therefore, it is an advantage of the invention that：Vehicle track running state is judged using absolute displacement values analysis, compared to using GPS
Equipment calculates distance, overcomes the problem of being influenceed larger by conditions such as track routes, terrain environments.
Brief description of the drawings
Fig. 1 is a kind of structural frames diagram of the present invention；
Fig. 2 is a kind of method flow schematic diagram of the present invention.
The detection of 1- speed displacement information acquisition unit 2- processing unit 3- network connection unit 4- location status is single
Member.
Embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
Embodiment：
A kind of rail vehicle running state analysis system based on absolute displacement of the present embodiment, as shown in figure 1, including at least
The railcar of two operations on the same track, railcar is from wheel movement special equipment.Output is provided with railcar exhausted
To shift value and the speed displacement information acquisition unit 1 of the speed of service, to railcar movement relation and apart from the place analyzed
Manage the network connection unit 3 mutually communicated between unit 2, progress railcar, location status detection unit 4, speed displacement information
Collecting unit and location status detection unit are connected with processing unit respectively, network connection unit respectively with processing unit, speed
Displacement information collecting unit is connected.
Speed displacement information acquisition unit：The speed of service of acquisition railcar, velocity phase and railcar is absolute in real time
Displacement data；
Location status detection unit：Detect whether railcar even hangs with other railcars；
Processing unit：Railcar absolute displacement values variation tendency relation, railcar front and back position relation are judged, according to track
Front and back position relation and the variation tendency relation of railcar absolute displacement values judge that the motion between two railcars is closed between car
System.
Processing unit 2 includes variation tendency relation judge module, front and back position relation judge module and running state analysis
Module, not shown in figure.Network connection unit respectively with variation tendency relation judging unit and front and back position relation judging unit
Connection, speed displacement information acquisition unit is connected and front and back position relation judging unit with variation tendency relation judging unit respectively
Connection, location status detection unit is connected with variation tendency relation judging unit and front and back position relation judging unit respectively, is become
Change trend relation judging unit and front and back position relation judging unit are connected with running state analysis unit respectively.
Location status detection unit 4 uses range sensor between vehicle in the present embodiment, and range sensor is separately mounted to
On railcar rear and front end.Range sensor is respectively facing in front of the end of place, to being detected in front of the end of place.
In a kind of rail vehicle running state analysis method based on absolute displacement, the present embodiment using two railcars as
Example, method comprises the following steps：
S1. connect in railcar under extension state, detect the variation tendency relation of railcar absolute displacement values.Detailed process bag
Include：
S11. whether railcar is judged in even extension state, if the range sensor of this car of railcar wherein one end is examined forward
Object is measured, the distance between detection and object value, if distance value falls in default distance value, judge this car distance biography
End where sensor is connected to the hanging with adjacent car.
Due to absolute displacement values data variation trend it is uncertain, it is necessary to two railcars even hang in the case of run a period of time
It could be judged.
S12. according to the variation tendency of the respective absolute displacement of railcar, determine that the absolute displacement value changes between railcar are
With mutually or anti-phase.Speed displacement information acquisition unit is that GYK exports absolute displacement values, the start of speed displacement information acquisition unit
Absolute displacement values are initialized as 0 afterwards, and direction is random, circulation output.When traffic direction changes, absolute displacement values increasing or decreasing
Also can accordingly it change, as being incremented by a direction service hours value, numerical value is just changed into what is successively decreased after direction changes.At two
When railcar even hangs advance, if absolute displacement values are all increasing or decreasing, the absolute displacement values variation tendency of two railcars
Relation is same phase, if one is incremented by another and successively decreases, the absolute displacement values variation tendency relation of two railcars is anti-phase
's.Two railcar absolute displacement values variation tendency relations are used in the present embodiment for same phase relation.
S2. connect in railcar under extension state, the front and back position relation between detection railcar；Specifically include：
S21. whether judge railcar in even extension state, if the supersonic range finder of railcar this car wherein one end to
Before detect object, calculate to the distance between object value, if distance value falls in default distance value, judging this car, this surpasses
End where sound ranging device is connected to the hanging with adjacent car；Pre-determined distance value is arranged on position in railcar according to supersonic range finder
Determine, then the pre-determined distance value scope is smaller at installation site more forward end.General setting 1m-2m distance.
S22. the context of this car and adjacent car is judged according to railcar moving direction, railcar direct of travel is detected, if
This car one end relative with direct of travel even hangs with adjacent car, judges on direct of travel this parking stall in preceding, adjacent parking stall in rear, otherwise
Adjacent car even is hung with this car direct of travel one end, then this parking stall is in rear, and adjacent parking stall is in preceding.
If supersonic range finder detects forward object on railcar wherein one end, supersonic range finder is calculated
To the distance value of object, distance value is sent to processing unit, a distance value, i.e. two cars are previously provided with processing unit
Suitable distance scope when even hanging between two railcars.If the distance value calculated falls in default distance value, it may determine that
Railcar supersonic range finder institute even hangs with another railcar at one end.Processing unit receives railcar direct of travel simultaneously
Information, the front and back position relation of this car of walking direction advanced according to railcar and adjacent car, when this car direct of travel it is relative one
Adjacent car is connected on end, this parking stall is judged on direct of travel in preceding, adjacent parking stall connects on this car direct of travel one end in rear
Adjoining car, then this parking stall is in rear, and adjacent parking stall is in preceding.
S3. two are judged according to the variation tendency relation of front and back position relation between railcar and railcar absolute displacement values
Movement relation between railcar；Specific method includes：
A. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Absolute displacement values for Ben Che and adjacent car are all incremented by and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the absolute position of railcar of motion
Shifting value is incremented by, then this truck position is preceding, and adjacent truck position is rear；If the railcar absolute displacement values of motion successively decrease, this car rear,
Adjacent car is preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical,
And this truck position, preceding, adjacent truck position is rear；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running direction phases
Together, and this car is rear, adjacent car is preceding；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcars are moved
In the opposite direction, rear car each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction,
Front truck each other；
B. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Absolute displacement values for Ben Che and adjacent car are all to successively decrease and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the absolute position of railcar of motion
Shifting value is incremented by, then this truck position is rear, and adjacent truck position is preceding；If the railcar absolute displacement values of motion successively decrease, this car preceding,
Adjacent car is rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical,
And this truck position, rear, adjacent truck position is preceding；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running direction phases
Together, and this car is preceding, adjacent car is rear；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcars are moved
In the opposite direction, front truck each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction,
Rear car each other；
C. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Absolute displacement values for Ben Che and adjacent car are all incremented by and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the absolute position of railcar of motion
Shifting value is incremented by, then this truck position is rear, and adjacent truck position is preceding；If the railcar absolute displacement values of motion successively decrease, this car preceding,
Adjacent car is rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical,
And this truck position, rear, adjacent truck position is preceding；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running direction phases
Together, and this car is preceding, adjacent car is rear；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcars are moved
In the opposite direction, front truck each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction,
Rear car each other；
D. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Absolute displacement values for Ben Che and adjacent car are all to successively decrease and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the absolute position of railcar of motion
Shifting value is incremented by, then this truck position is preceding, and adjacent truck position is rear；If the railcar absolute displacement values of motion successively decrease, this car rear,
Adjacent car is preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical,
And this truck position, preceding, adjacent truck position is rear；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running direction phases
Together, and this car is rear, adjacent car is preceding；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcars are moved
In the opposite direction, rear car each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction,
Front truck each other；
E. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
It is incremented by for this car absolute displacement values, adjacent car absolute displacement values successively decrease, and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is in preceding, adjacent parking stall
Put rear；Ruo Benche absolute displacement values successively decrease, then this truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values are incremented by,
Then this truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values successively decrease, this truck position is preceding, and adjacent truck position is rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track runnings are in opposite direction,
Rear car each other；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track runnings are in opposite direction, each other front truck；Ruo Benche
Absolute displacement values are incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this car, preceding, adjacent car is rear；
Ruo Benche absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, and two car traffic directions are identical, then two vehicle track running direction phases
Together, and this car is rear, adjacent car is preceding；
F. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Successively decrease for this car absolute displacement values, adjacent car absolute displacement values are incremented by, and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is in rear, adjacent parking stall
Put preceding；Ruo Benche absolute displacement values successively decrease, then this truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values are incremented by,
Then this truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values successively decrease, this truck position is rear, and adjacent truck position is preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then the two railcar directions of motion on the contrary,
Front truck each other；Ruo Benche and adjacent car absolute displacement values all successively decrease, then the two railcar directions of motion are on the contrary, rear car each other；Ruo Benche
Absolute displacement values are incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this truck position is in rear, adjacent car
Position is preceding；Ruo Benche absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, then two vehicle track running directions are identical, and this
Truck position is preceding, and adjacent car is rear；
G. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Successively decrease for this car absolute displacement values, adjacent car absolute displacement values are incremented by, and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is in preceding, adjacent parking stall
Put rear；Ruo Benche absolute displacement values successively decrease, then this truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values are incremented by,
Then this truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values successively decrease, this truck position is preceding, and adjacent truck position is rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then the two railcar directions of motion on the contrary,
Rear car each other；Ruo Benche and adjacent car absolute displacement values all successively decrease, then the two railcar directions of motion are on the contrary, front truck each other；Ruo Benche
Absolute displacement values are incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this truck position is in preceding, adjacent car
Position is rear；Ruo Benche absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, then two vehicle track running directions are identical, and this
Truck position is rear, and adjacent car is preceding；
H. when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
It is incremented by for this car absolute displacement values, adjacent car absolute displacement values successively decrease, and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is in rear, adjacent parking stall
Put preceding；Ruo Benche absolute displacement values successively decrease, then this truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values are incremented by,
Then this truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values successively decrease, this truck position is rear, and adjacent truck position is preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then the two railcar directions of motion on the contrary,
Front truck each other；Ruo Benche and adjacent car absolute displacement values all successively decrease, then the two railcar directions of motion are on the contrary, rear car each other；Ruo Benche
Absolute displacement values are incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this truck position is in rear, adjacent car
Position is preceding；Ruo Benche absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, then two vehicle track running directions are identical, and this
Truck position is preceding, and adjacent truck position is rear.
S4. according to the absolute displacement values of railcar, the distance between railcar is determined.Process includes：
S41. when two railcars depart from and even hung, minute book car and adjacent car depart from respective absolute displacement when even hanging respectively
Value, and it regard 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 calculate current location with
The difference N of absolute displacement values between its basic point, the difference M of absolute displacement values and absolute displacement values difference N are compared, and are obtained two and are worth
The absolute value of difference the distance between be this car with adjacent car.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although more having used speed displacement information acquisition unit, processing unit, network connection unit, position shape herein
The terms such as state detection unit, but it is not precluded from the possibility using other terms.Using these terms just for the sake of more convenient
Ground describes and explains the essence of the present invention；Being construed as any additional limitation is disagreed with spirit of the present invention
's.
Claims (7)
1. a kind of rail vehicle running state analysis system based on absolute displacement, it is characterised in that：Including at least two operations
Railcar on the same track, is provided with speed displacement information acquisition unit in railcar（1）, location status detection unit
（4）, processing unit（2）The network connection unit mutually communicated between progress railcar（3）, speed displacement information acquisition unit
Be connected respectively with processing unit with location status detection unit, network connection unit respectively with processing unit, speed displacement information
Collecting unit is connected；Processing unit includes variation tendency relation judge module, front and back position relation judge module and running status
Analysis module, network connection unit is connected with variation tendency relation judging unit and front and back position relation judging unit respectively, speed
Degree displacement information collecting unit is connected and the connection of front and back position relation judging unit with variation tendency relation judging unit respectively, position
Configuration state detection unit is connected with variation tendency relation judging unit and front and back position relation judging unit respectively, and variation tendency is closed
It is that judging unit and front and back position relation judging unit are connected with running state analysis unit respectively；
Speed displacement information acquisition unit：The absolute displacement of the speed of service, velocity phase and railcar of railcar is obtained in real time
Data；
Location status detection unit：Detect whether railcar even hangs with other railcars；
Processing unit：Judge railcar absolute displacement values variation tendency relation, railcar front and back position relation, according to railcar it
Between front and back position relation and the variation tendency relation of railcar absolute displacement values judge movement relation between two railcars.
2. the rail vehicle running state analysis system according to claim 1 based on absolute displacement, it is characterized in that described
Location status detection unit（4）Including range sensor, range sensor is separately mounted on railcar rear and front end.
3. a kind of rail vehicle running state analysis method based on absolute displacement, what it is using any one of claim 1-2 is
System, it is characterized in that：Comprise the following steps：
S1. connect in railcar under extension state, detect the variation tendency relation of railcar absolute displacement values；
S2. connect in railcar under extension state, the front and back position relation between detection railcar；
S3. railcar departs from even hang after, according to absolute displacement values between front and back position relation and railcar between railcar
Variation tendency relation judges the movement relation between two railcars；
S4. according to the absolute displacement values of railcar, the distance between railcar is determined.
4. the rail vehicle running state analysis method according to claim 3 based on absolute displacement, it is characterized in that step
Determine that the variation tendency relational process of railcar absolute displacement values includes in S1：
S11. whether railcar is judged in even extension state, if the range sensor of this car of railcar wherein one end is detected forward
Object, calculate with the distance between object value, if distance value falls in default distance value, judge this car Distance-sensing
End where device is connected to the hanging with adjacent car；
S12. according to the variation tendency of the respective absolute displacement of railcar, it is same phase to determine the absolute displacement value changes between railcar
Or it is anti-phase.
5. the rail vehicle running state analysis method according to claim 3 based on absolute displacement, it is characterized in that described
Determine that the process of the front and back position relation between railcar includes in step S2：
S21. whether railcar is judged in even extension state, if the supersonic range finder of railcar this car wherein one end is forward
Object is detected, calculates to the distance between object value, if distance value falls in default distance value, judges this car ultrasound
End where Wave ranging device is connected to the hanging with adjacent car；
S22. the context of this car and adjacent car is judged according to railcar direct of travel, railcar direct of travel, Ruo Benche is detected
One end relative with direct of travel even hangs with adjacent car, judges on direct of travel this parking stall in preceding, adjacent parking stall in rear, otherwise
Car direct of travel one end even hangs with adjacent car, then this parking stall is in rear, and adjacent parking stall is in preceding.
6. the rail vehicle running state analysis method based on absolute displacement according to claim 3 or 4 or 5, its feature
It is that the method that the movement relation between two railcars is determined in the step S3 is：
A. it is this when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
The absolute displacement values of car and adjacent car are all incremented by and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the railcar absolute displacement values of motion
It is incremented by, then this truck position is preceding, and adjacent truck position is rear；If the railcar absolute displacement values of motion successively decrease, this car is in rear, adjacent car
Preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical, and this
Truck position is preceding, 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, rear, adjacent car is preceding；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcar motion sides
To on the contrary, rear car each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction, mutually
For front truck；
B. it is this when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
The absolute displacement values of car and adjacent car are all to successively decrease and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the railcar absolute displacement values of motion
It is incremented by, then this truck position is rear, and adjacent truck position is preceding；If the railcar absolute displacement values of motion successively decrease, this car is in preceding, adjacent car
Rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical, and this
Truck position is rear, and adjacent truck position is preceding；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical,
And this car, preceding, adjacent car is rear；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcar motion sides
To on the contrary, front truck each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction, mutually
For rear car；
C. it is this when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
The absolute displacement values of car and adjacent car are all incremented by and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the railcar absolute displacement values of motion
It is incremented by, then this truck position is rear, and adjacent truck position is preceding；If the railcar absolute displacement values of motion successively decrease, this car is in preceding, adjacent car
Rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical, and this
Truck position is rear, and adjacent truck position is preceding；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track running directions are identical,
And this car, preceding, adjacent car is rear；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcar motion sides
To on the contrary, front truck each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction, mutually
For rear car；
D. it is this when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
The absolute displacement values of car and adjacent car are all to successively decrease and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, no matter Ben Che or adjacent car motion, if the railcar absolute displacement values of motion
It is incremented by, then this truck position is preceding, and adjacent truck position is rear；If the railcar absolute displacement values of motion successively decrease, this car is in rear, adjacent car
Preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track running directions are identical, and this
Truck position is preceding, 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, rear, adjacent car is preceding；Ruo Benche absolute displacement values are incremented by, adjacent car absolute displacement values successively decrease, then two railcar motion sides
To on the contrary, rear car each other；Ruo Benche absolute displacement values successively decrease, adjacent car absolute displacement values are incremented by, then two railcars are in opposite direction, mutually
For front truck；
E. it is this when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Car absolute displacement values are incremented by, and adjacent car absolute displacement values successively decrease, and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is preceding, and adjacent truck position exists
Afterwards；Ruo Benche absolute displacement values successively decrease, then this truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values are incremented by, this
Truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values successively decrease, this truck position is preceding, and adjacent truck position is rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then two vehicle track runnings are in opposite direction, each other
Rear car；Ruo Benche and adjacent car absolute displacement values all successively decrease, then two vehicle track runnings are in opposite direction, each other front truck；Ruo Benche is absolute
Shift value is incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this car, preceding, adjacent car is rear；If this
Car absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, and two car traffic directions are identical, then two vehicle track running directions are identical,
And this car, rear, adjacent car is preceding；
F. it is this when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Car absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, and the preceding situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is rear, and adjacent truck position exists
Before；Ruo Benche absolute displacement values successively decrease, then this truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values are incremented by, this
Truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values successively decrease, this truck position is rear, and adjacent truck position is preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then the two railcar directions of motion are on the contrary, each other
Front truck；Ruo Benche and adjacent car absolute displacement values all successively decrease, then the two railcar directions of motion are on the contrary, rear car each other；Ruo Benche is absolute
Shift value is incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this truck position is in rear, adjacent truck position
Preceding；Ruo Benche absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, then two vehicle track running directions are identical, and this parking stall
Put preceding, adjacent car is rear；
G. it is this when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Car absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is preceding, and adjacent truck position exists
Afterwards；Ruo Benche absolute displacement values successively decrease, then this truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values are incremented by, this
Truck position is rear, and adjacent truck position is preceding；If adjacent car absolute displacement values successively decrease, this truck position is preceding, and adjacent truck position is rear；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then the two railcar directions of motion are on the contrary, each other
Rear car；Ruo Benche and adjacent car absolute displacement values all successively decrease, then the two railcar directions of motion are on the contrary, front truck each other；Ruo Benche is absolute
Shift value is incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this truck position is in preceding, adjacent truck position
Rear；Ruo Benche absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, then two vehicle track running directions are identical, and this parking stall
Put rear, adjacent car is preceding；
H. it is this when detecting front and back position relation between absolute displacement values variation tendency relation and railcar in step S1 and S2
Car absolute displacement values are incremented by, and adjacent car absolute displacement values successively decrease, and the posterior situation of this car：
When two railcars are all in inactive state, according to the position relationship that the step S2 information determined is two railcars；
When the state of only one railcar movement, Ruo Benche absolute displacement values are incremented by, then this truck position is rear, and adjacent truck position exists
Before；Ruo Benche absolute displacement values successively decrease, then this truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values are incremented by, this
Truck position is preceding, and adjacent truck position is rear；If adjacent car absolute displacement values successively decrease, this truck position is rear, and adjacent truck position is preceding；
When two railcars are all moved, Ruo Benche and adjacent car absolute displacement values are all incremental, then the two railcar directions of motion are on the contrary, each other
Front truck；Ruo Benche and adjacent car absolute displacement values all successively decrease, then the two railcar directions of motion are on the contrary, rear car each other；Ruo Benche is absolute
Shift value is incremented by, and adjacent car absolute displacement values successively decrease, then two vehicle track running directions are identical, and this truck position is in rear, adjacent truck position
Preceding；Ruo Benche absolute displacement values successively decrease, and adjacent car absolute displacement values are incremented by, then two vehicle track running directions are identical, and this parking stall
Put preceding, adjacent truck position is rear.
7. the rail vehicle running state analysis method based on absolute displacement according to claim 3 or 4 or 5, its feature
It is to determine that the distance between railcar process includes in step S4：
S41. when railcar departs from and even hung, minute book car and adjacent car depart from respective absolute displacement values when even hanging respectively, and will
The absolute displacement values position of record is used as respective basic point；
S42. this car calculates the difference M of the absolute displacement values between current location and its basic point, and adjacent car calculates current location and its base
The difference N of absolute displacement values between point, the difference M of absolute displacement values and absolute displacement values difference N are compared, and obtain the difference of two values
Absolute value the distance between be this car with adjacent car.
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