CN108263429A - Changing points control method and system - Google Patents
Changing points control method and system Download PDFInfo
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- CN108263429A CN108263429A CN201611260747.6A CN201611260747A CN108263429A CN 108263429 A CN108263429 A CN 108263429A CN 201611260747 A CN201611260747 A CN 201611260747A CN 108263429 A CN108263429 A CN 108263429A
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- turn
- encoder
- pulse signal
- out track
- trolley
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The application proposes a kind of changing points control method and system, wherein, this method includes：Determine the pulse signal quantity of encoder reality output being arranged on turn-out track trolley；Judge the quantity of the pulse signal of reality output whether in preset range；If so, control turn-out track trolley parking.The changing points control method and system provided by the application, it realizes and the shift position and movement speed of turnout junction girder and turn-out track trolley is converted into digital signal using encoder, real time monitoring and control changing points situation, improve the response speed during changing points, mechanical damage is avoided, improves safety.
Description
Technical field
This application involves rail traffic turnout technology field more particularly to a kind of changing points control methods and system.
Background technology
With the rapid development of economic construction and the continuous construction of railway, rail transit network is more complicated, becomes in track
Road or the position turned around realize the direction change of vehicle often through track switch, and when vehicle drives to switch location, need into
Row changing points.
The prior art needs each joint in each track switch position to install limit switch, when carrying out changing points, utilizes
Motor drives turn-out track trolley and turnout junction girder movement, and after turn-out track trolley is moved to limit-switch positions, limit switch is i.e. to control
Device sends signal, is shut down by controller control motor, completes changing points.
Above-mentioned changing points control method, only changing points in place after, from limit switch to controller send signal, then
Motor is controlled by controller, response speed is slow, easily causes the mechanical damage of turnout junction girder, and safety is low.
Invention content
The application is intended to solve at least some of the technical problems in related technologies.
For this purpose, first purpose of the application is to propose a kind of changing points control system, realizes and utilize encoder
The shift position and movement speed of turnout junction girder and turn-out track trolley are converted into digital signal, real time monitoring and control changing points feelings
Condition improves the response speed during changing points, avoids mechanical damage, improves safety.
Second purpose of the application is to propose a kind of changing points control method.
In order to achieve the above object, the application first aspect embodiment proposes a kind of changing points control system, including：Coding
Device, controller and motor, wherein, the encoder is arranged on turn-out track trolley, for when the turn-out track trolley moves, exporting
Pulse signal；The motor is used to drive the turn-out track trolley；The controller is used to determine the encoder reality output
Pulse signal quantity, and judge the reality output pulse signal quantity whether in preset range, if so, control
The motor drives the turn-out track trolley parking.
In a kind of possible way of realization of first aspect, the encoder be rotary encoder, the rotary-type volume
Code device is arranged on the scroll wheel of the turn-out track trolley, and the controller determines that the rotary encoder is actually defeated according to angular displacement
The pulse signal quantity gone out.
In the alternatively possible way of realization of first aspect, the encoder be linear type encoder, the straight line
Type encoder is arranged on the car body of the turn-out track trolley, and the controller determines the linear type encoder according to straight-line displacement
The pulse signal quantity of reality output.
In the alternatively possible way of realization of first aspect, the controller is additionally operable to：
Judge whether the quantity of the pulse signal of the reality output is more than the first preset value；
If so, according to preset control strategy, the rotating speed for the motor for driving the turn-out track trolley is reduced, to reduce
The travel speed of the turn-out track trolley.
In the alternatively possible way of realization of first aspect, the controller is additionally operable to：
It is big with the difference of the quantity of the pulse signal of target output according to the quantity of the pulse signal of the reality output
It is small, continuously decrease the travel speed of the turn-out track trolley.
In the alternatively possible way of realization of first aspect, the controller is additionally operable to：
Drop-on-demand is received, the drop-on-demand includes target track switch mark；
It is identified according to the target track switch, determines the target moving distance of the turn-out track trolley；
According to the target moving distance, the pulse signal quantity of the target output of encoder is determined.
In the alternatively possible way of realization of first aspect, the controller is additionally operable to：
According to the installation site and performance parameter of the encoder, calculate the encoder and move the target moving distance
When, the pulse signal quantity of the target output.
In the alternatively possible way of realization of first aspect, the controller is additionally operable to：
Determine the corresponding first track switch mark in position that the turn-out track trolley is currently located；
According to the mapping relations of preset track switch mark and distance, the first track switch mark and the target track switch are determined
Target moving distance between mark.
The changing points control system of the embodiment of the present application, it is first determined the encoder being arranged on turn-out track trolley is actually defeated
The pulse signal gone out then when the quantity of the pulse signal of reality output is in preset range, controls the turn-out track trolley
Parking.Hereby it is achieved that the shift position and movement speed of turnout junction girder and turn-out track trolley are converted into digital letter using encoder
Number, real time monitoring and control changing points situation improve the response speed during changing points, avoid mechanical damage,
Improve safety.
In order to achieve the above object, the application second aspect embodiment proposes a kind of changing points control method, including：It determines
It is arranged on the pulse signal quantity of the encoder reality output on turn-out track trolley；Judge the number of the pulse signal of the reality output
Whether amount is in preset range；If so, the turn-out track trolley is controlled to stop.
In a kind of possible way of realization of second aspect, the encoder be rotary encoder, the rotary-type volume
Code device is arranged on the scroll wheel of the turn-out track trolley, and the controller determines that the rotary encoder is actually defeated according to angular displacement
The pulse signal quantity gone out.
In the alternatively possible way of realization of second aspect, the encoder be linear type encoder, the straight line
Type encoder is arranged on the car body of the turn-out track trolley, and the controller determines the linear type encoder according to straight-line displacement
The pulse signal quantity of reality output.
In the alternatively possible way of realization of second aspect, whether the quantity for judging the pulse signal is pre-
In the range of if, including：
Judge whether the quantity of the pulse signal of the reality output is more than the first preset value；
If so, according to preset control strategy, the rotating speed for the motor for driving the turn-out track trolley is reduced, to reduce
The travel speed of the turn-out track trolley.
It is described according to preset control strategy in the alternatively possible way of realization of second aspect, reduce driving institute
The rotating speed of the motor of turn-out track trolley is stated, to reduce the travel speed of the turn-out track trolley, including：
It is big with the difference of the quantity of the pulse signal of target output according to the quantity of the pulse signal of the reality output
It is small, continuously decrease the travel speed of the turn-out track trolley.
It is described to determine the encoder being arranged on turn-out track trolley reality in the alternatively possible way of realization of second aspect
Before the pulse signal quantity of border output, further include：
Drop-on-demand is received, the drop-on-demand includes target track switch mark；
It is identified according to the target track switch, determines the target moving distance of the turn-out track trolley；
According to the target moving distance, the pulse signal quantity of the encoder target output is determined.
It is described according to the target moving distance in the alternatively possible way of realization of second aspect, it determines described
The pulse signal quantity of encoder target output, including：
According to the installation site and performance parameter of the encoder, calculate the encoder and move the target moving distance
When, the pulse signal quantity of target output.
It is described to be identified according to the target track switch in the alternatively possible way of realization of second aspect, it determines described
The target moving distance of turn-out track trolley, including：
Determine the corresponding first track switch mark in position that the turn-out track trolley is currently located；
According to the mapping relations of preset track switch mark and distance, the first track switch mark and the target track switch are determined
Target moving distance between mark.
The changing points control method of the embodiment of the present application, it is first determined the encoder being arranged on turn-out track trolley is actually defeated
The pulse signal gone out then when the quantity of the pulse signal of reality output is in preset range, controls the turn-out track trolley
Parking.Hereby it is achieved that the shift position and movement speed of turnout junction girder and turn-out track trolley are converted into digital letter using encoder
Number, real time monitoring and control changing points situation improve the response speed during changing points, avoid mechanical damage,
Improve safety.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Significantly and it is readily appreciated that, wherein：
Fig. 1 is the structure diagram of the changing points control system of the application one embodiment；
Fig. 2 is the flow diagram of the changing points control method of the application one embodiment；
Fig. 3 is the flow diagram of the changing points control method of the application another embodiment；
Fig. 4 is the realization schematic diagram of a scenario of changing points control method that the application provides.
Specific embodiment
Embodiments herein is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the application, and it is not intended that limitation to the application.
Each embodiment of the application be directed to existing changing points control method, only changing points in place after, to controller
Signal is sent, then is shut down by controller control motor, the problem of response speed is slow, easily causes mechanical damage, and safety is low,
It is proposed it is a kind of the shift position of turnout junction girder and movement speed are converted into digital signal using encoder, real time monitoring and control road
The changing points control method of trouble turn-out track situation.
Below with reference to the accompanying drawings the changing points control method and system of the embodiment of the present application are described.
Changing points control system provided by the embodiments of the present application is illustrated first below.
Fig. 1 is the structure diagram of the changing points control system of the application one embodiment.
As shown in Figure 1, the changing points control system includes：Encoder 12, controller 13, motor 14；
Wherein, the encoder 12 is arranged on turn-out track trolley 11, for when the turn-out track trolley 11 moves, exporting arteries and veins
Rush signal；The motor 14 is used to drive the turn-out track trolley 11；
The controller 13 is used to determine the pulse signal quantity of 12 reality output of encoder, and judges the reality
Whether the quantity of the pulse signal of output is in preset range, if so, the motor 14 is controlled to drive the turn-out track trolley
11 parkings.
Wherein, encoder 12 can be rotary coder, linear type encoder, etc..Encoder 12 is in the course of work
In, angular displacement or straight-line displacement can be converted into digital pulse signal.
For example, rotary coder, often turns over certain angle and just exports a pulse signal, therefore according to rotary coding
The pulse signal quantity of device output, you can determine the angle of rotary encoder rotation, and it is certain due to having between angle and displacement
Mapping relations, therefore according to rotary encoder export number of pulses, you can determine its occur displacement.Similar, straight line
A pulse signal is just exported when type encoder often moves certain displacement, so as to the umber of pulse according to linear type encoder output
Amount, you can determine its displacement occurred.Therefore, in the embodiment of the present application, encoder 12 can be arranged on turn-out track trolley 11
On, using the pulse signal quantity that encoder 12 exports and the relationship of its moving displacement, to monitor the mobile position of turn-out track trolley 11
It moves.
Further it will be understood that when encoder 12 is arranged on turn-out track trolley 11, it can be according to the performance of encoder 12
Encoder 12 is arranged on the different location of turn-out track trolley 11 by parameter.For example, angular displacement can be converted by rotary coder
Digital pulse signal, therefore rotary coder can be arranged on the scroll wheel of turn-out track trolley 11；Linear type encoder can
Straight-line displacement is converted into digital pulse signal, then linear type encoder can be arranged on the car body of turn-out track trolley 11,
With the pulse signal quantity and the relationship of its moving displacement exported using encoder 12, to monitor the mobile position of turn-out track trolley 11
It moves.
During specific implementation, turn-out track trolley 11 is generally arranged at the lower section of turnout junction girder, by motor 14 drive turn-out track trolley 11 and
Turnout junction girder is moved, and to be moved to another track switch position from a track switch position, completes the turn-out track of track switch.When track switch carries out turn-out track
When, with the movement of turn-out track trolley 11, the encoder 12 being arranged on turn-out track trolley 11 can export digital pulse signal, by
When the type difference of encoder 12, operation principle is different, and therefore, controller 13 can be rotary encoder in encoder 12
When, the pulse signal quantity of rotary encoder reality output is determined according to angular displacement, alternatively, being encoded in encoder 12 for linear type
During device, the pulse signal quantity of linear type encoder reality output is determined according to straight-line displacement, so as to be exported according to encoder 12
Pulse signal quantity, determine turn-out track trolley 11 move displacement.
During specific implementation, during due to mobile same displacement, pulse number that the encoder 12 of different performance parameter exports
Amount is different, and the pulse signal quantity exported mounted on the encoder 12 of different location is also different.Therefore, preset model
It encloses, the distance and the installation site and performance parameter of encoder 12 that can be controller 13 to be moved according to turn-out track trolley 11 are true
Fixed.
During specific implementation, the distance and the installation site and performance parameter of encoder 12 to be moved according to turn-out track trolley 11,
After preset range is determined, if the pulse signal quantity of 12 reality output of encoder being arranged on turn-out track trolley 11 is preset
In the range of, you can control turn-out track trolley 11 stops.
In a kind of possible way of realization of the embodiment of the present application, the controller 13 is additionally operable to：
Drop-on-demand is received, the drop-on-demand includes target track switch mark；
It is identified according to the target track switch, determines the target moving distance of the turn-out track trolley 11；
According to the target moving distance, the pulse signal quantity of 12 target of the encoder output is determined.
Wherein, track switch identifies, and for uniquely characterizing the position of the track switch, different track switches corresponds to different track switch marks,
Target track switch identifies, and during uniquely characterizing changing points, turn-out track trolley 11 needs the switch location reached.Turn-out track trolley
11 target moving distance, i.e. turn-out track trolley 11 are moved to the target track switch mark distance to be moved.
In the alternatively possible way of realization of the embodiment of the present application, the controller 13 is additionally operable to：
Determine the corresponding first track switch mark in position that the turn-out track trolley 11 is currently located；
According to the mapping relations of preset track switch mark and distance, the first track switch mark and the target track switch are determined
Target moving distance between mark.
During specific implementation, track switch mark and the mapping relations of distance can be pre-set, it is determined that turn-out track trolley 11 is worked as
After the corresponding first track switch mark in position at preceding place, you can according to mapping relations, determine the first track switch mark and target track switch
Target moving distance between mark.
As an example it is assumed that the first track switch, the second track switch, third road are followed successively by comprising three track switches at track track switch
Trouble, the distance between the first track switch and the second track switch are 0.2 meter, and the distance between the second track switch and third track switch is 0.2 meter, if turn-out track
The position that trolley 11 is currently located corresponds to the first track switch, and in the drop-on-demand received, target track switch is identified as third track switch
Mark, then according to track switch mark and the mapping relations of distance, it may be determined that target movement between the first track switch and target track switch away from
From being 0.4 meter, i.e., turn-out track trolley 11 identifies corresponding position from the first track switch and is moved to the corresponding position of third track switch mark,
Mobile displacement is 0.4 meter.
During specific implementation, it is determined that after the target moving distance of turn-out track trolley 11, controller 13 can be according to encoder 12
Installation site and performance parameter, when calculating turn-out track trolley 11 and moving target moving distance, the pulse of 12 target of encoder output
Number of signals.
It, can also be according to the displacement feelings of the movement of turn-out track trolley 11 in the alternatively possible way of realization of the embodiment of the present application
Condition, the speed of 11 movement of control turn-out track trolley, makes turn-out track trolley 11 gradually stop.That is, the controller 13, is additionally operable to：
Judge whether the quantity of the pulse signal of the reality output is more than the first preset value；
If so, according to preset control strategy, the rotating speed for the motor 14 for driving the turn-out track trolley 11 is reduced, with
Reduce the travel speed of the turn-out track trolley 11.
Wherein, the first preset value can be configured, specifically according to the pulse signal quantity that 12 target of encoder exports
, it could be provided as the value of pulse signal quantity exported close to target.For example, it is assumed that the pulse letter of 12 target of encoder output
Number amount is 10000, then the first preset value could be provided as 9000, etc..
Preset control strategy refers to the method for specific 11 travel speed of control turn-out track trolley.For example, it can determine to turn
When the distance that rut trolley 11 currently moves is close to target location, the travel speed of turn-out track trolley 11 is reduced；Alternatively, it can also be root
According to the distance of 11 distance objective position of turn-out track trolley, travel speed of turn-out track trolley 11 etc., the present embodiment are gradually adjusted
This is not limited.
During specific implementation, since turn-out track trolley 11 is moved under the drive of motor 14, and the rotating speed of motor 14 and electricity
The frequency of supply of machine 14 is related, then in the embodiment of the present application, if the pulse signal quantity of 12 reality output of encoder is more than the
During one preset value, represent that turn-out track trolley 11 is identified already close to target track switch, at this point it is possible to according to preset control strategy,
The frequency of supply of the motor 14 of turn-out track trolley 11 is driven by reduction, to reduce the rotating speed of motor 14, and then reduce turn-out track trolley
11 travel speed.
In addition, controller 13 can also be according to the quantity of the pulse signal of reality output, the pulse signal with target output
Quantity size of the difference, continuously decrease the travel speed of turn-out track trolley 11.Specifically, the arteries and veins of reality output can be pre-set
The mapping for rushing the quantity and the difference of the quantity of the pulse signal of target output and the travel speed of turn-out track trolley 11 of signal is closed
System, then after the size of the difference is determined, you can the travel speed of turn-out track trolley 11 is reduced to preset speed, and finally makes to turn
Rut trolley 11 stops.
For example, if the quantity of the pulse signal of pre-set reality output, with the pulse signal of target output
When the difference of quantity is 1000, the travel speed of turn-out track trolley 11 is reduced to 0.01 metre per second (m/s), the pulse signal of reality output
The travel speed of turn-out track trolley 11 when the difference with the quantity of the pulse signal of target output is 500, is reduced to 0.005 by quantity
Metre per second (m/s), then when the quantity of the pulse signal of target output is 10000, then when the quantity of the pulse signal of reality output is
When 9000, you can the travel speed of turn-out track trolley 11 is reduced to 0.01 metre per second (m/s), when the quantity of the pulse signal of reality output
When being 9500, the travel speed of turn-out track trolley 11 can be reduced to 0.005 metre per second (m/s), etc..
The changing points control system of the embodiment of the present application, it is first determined the encoder being arranged on turn-out track trolley is actually defeated
The pulse signal gone out then when the quantity of the pulse signal of reality output is in preset range, controls the turn-out track trolley
Parking.Hereby it is achieved that the shift position and movement speed of turnout junction girder and turn-out track trolley are converted into digital letter using encoder
Number, real time monitoring and control changing points situation improve the response speed during changing points, avoid mechanical damage,
Improve safety.
Based on above-mentioned changing points control system, the application also proposes a kind of changing points control method.
Fig. 2 is the flow diagram of the changing points control method of the application one embodiment.
As shown in Fig. 2, the changing points control method includes：
Step 201, the pulse signal quantity of encoder reality output being arranged on turn-out track trolley is determined.
Specifically, changing points control method provided by the embodiments of the present application, executive agent are provided for the embodiment of the present application
Changing points control system, which can be configured in any railway points system, to realize the turn-out track of track switch.
Wherein, encoder can be rotary coder, linear type encoder, etc..Encoder during the work time, can
Angular displacement or straight-line displacement are converted into digital pulse signal.
For example, rotary coder, often turns over certain angle and just exports a pulse signal, therefore according to rotary coding
The pulse signal quantity of device output, you can determine the angle of rotary encoder rotation, and it is certain due to having between angle and displacement
Mapping relations, therefore according to rotary encoder export number of pulses, you can determine its occur displacement.Similar, straight line
A pulse signal is just exported when type encoder often moves certain displacement, so as to the umber of pulse according to linear type encoder output
Amount, you can determine its displacement occurred.Therefore, in the embodiment of the present application, encoder can be arranged on turn-out track trolley, profit
With the pulse signal quantity of encoder output and the relationship of its moving displacement, to monitor the moving displacement of turn-out track trolley.
Further it will be understood that when encoder is arranged on turn-out track trolley, can according to the performance parameter of encoder,
Encoder is arranged on to the different location of turn-out track trolley.For example, angular displacement can be converted into digit pulse by rotary coder
Signal, therefore rotary coder can be arranged on the scroll wheel of turn-out track trolley；Linear type encoder can be by straight line position
Transfer changes digital pulse signal into, then can be arranged on linear type encoder on the car body of turn-out track trolley, to utilize encoder
The pulse signal quantity of output and the relationship of its moving displacement, to monitor the moving displacement of turn-out track trolley.
During specific implementation, turn-out track trolley is generally arranged at the lower section of turnout junction girder, and turn-out track trolley and turnout junction girder are driven by motor
It is moved, to be moved to another track switch position from a track switch position, completes the turn-out track of track switch.When track switch carries out turn-out track, with
The movement of turn-out track trolley, the encoder being arranged on turn-out track trolley can export digital pulse signal, due to encoder
During type difference, operation principle is different, therefore, can determine that rotation is compiled according to angular displacement when encoder is rotary encoder
Alternatively, when encoder is linear type encoder, straight line is determined according to straight-line displacement for the pulse signal quantity of code device reality output
The pulse signal quantity of type encoder reality output so as to the quantity of the pulse signal according to encoder output, determines turn-out track platform
The displacement of vehicle movement.
Step 202, judge the quantity of the pulse signal of reality output whether in preset range.
Step 203, if so, the trolley parking of control turn-out track.
During specific implementation, during due to mobile same displacement, the pulse signal quantity of the encoder output of different performance parameter
It is different, the pulse signal quantity mounted on the encoder output of different location is also different.Therefore, preset range,
The distance and the installation site and performance parameter of encoder that can be changing points control system to be moved according to turn-out track trolley are true
Fixed.
Such as, it is assumed that encoder is rotary encoder, on the scroll wheel of turn-out track trolley, scroll wheel a diameter of 0.01
Rice, encoder every revolution export 1000 pulses.According to the installation site of encoder and performance parameter it is found that every turn of encoder
One circle, turn-out track trolley moves 0.0314 meter, and encoder every revolution exports 1000 pulse signals, if then turn-out track trolley will move
Dynamic distance is 0.628 meter, and encoder should export 1000* (0.628/0.0314)=20000 pulse signal, it is contemplated that
Certain allowable range of error, then preset range, for example could be provided as 19000-20000,19900-20000 etc..
Or, it is assumed that encoder is linear type encoder, and on the car body of turn-out track trolley, encoder often moves one
Rice exports 20000 pulses, if then according to the installation site of encoder and performance parameter it is found that the encoder distance to be moved
It it is 0.628 meter, encoder should export 20000*0.628=12560 pulse signal, it is contemplated that certain error allows model
It encloses, then, preset range, for example could be provided as 11000-12560,12000-12560, etc..
During specific implementation, the distance and the installation site of encoder and performance parameter to be moved according to turn-out track trolley determine
After preset range, if the pulse signal quantity of the encoder reality output being arranged on turn-out track trolley in preset range,
I.e. controllable turn-out track trolley parking.
The changing points control method of the embodiment of the present application, it is first determined the encoder being arranged on turn-out track trolley is actually defeated
The pulse signal gone out then when the quantity of the pulse signal of reality output is in preset range, controls the turn-out track trolley
Parking.Hereby it is achieved that the shift position and movement speed of turnout junction girder and turn-out track trolley are converted into digital letter using encoder
Number, real time monitoring and control changing points situation improve the response speed during changing points, avoid mechanical damage,
Improve safety.
It it is found that can be by being arranged on the pulse number of the encoder reality output on turn-out track trolley by above-mentioned analysis
Amount monitors the misalignment of turn-out track trolley, and when the quantity of the pulse signal is in preset range, control turn-out track trolley stops
Vehicle realizes changing points control.In practice, can also turn-out track platform be controlled according to the misalignment of turn-out track trolley movement
The speed of vehicle movement, makes turn-out track trolley gradually stop, with reference to Fig. 3, the above situation is specifically described.
Fig. 3 is the flow diagram of the changing points control method of the application another embodiment.
As shown in figure 3, the changing points control method includes：
Step 301, drop-on-demand is received, drop-on-demand includes target track switch mark.
Wherein, track switch identifies, and for uniquely characterizing the position of the track switch, different track switches corresponds to different track switch marks,
Target track switch identifies, and during uniquely characterizing changing points, turn-out track trolley needs the switch location reached.
Step 302, it is identified according to target track switch, determines the target moving distance of turn-out track trolley.
Wherein, the target moving distance of turn-out track trolley, i.e. turn-out track trolley be moved to target track switch mark to be moved away from
From.
During specific implementation, track switch mark and the mapping relations of distance can be pre-set, it is determined that turn-out track trolley is current
After the corresponding first track switch mark in position at place, you can according to mapping relations, determine that the first track switch mark is marked with target track switch
Target moving distance between knowledge.
As an example it is assumed that the first track switch, the second track switch, third road are followed successively by comprising three track switches at track track switch
Trouble, the distance between the first track switch and the second track switch are 0.2 meter, and the distance between the second track switch and third track switch is 0.2 meter, if turn-out track
The position that trolley is currently located corresponds to the first track switch, and in the drop-on-demand received, target track switch is identified as third track switch mark
Know, then according to the mapping relations of track switch mark and distance, it may be determined that the target moving distance between the first track switch and target track switch
It it is 0.4 meter, i.e., turn-out track trolley identifies corresponding position from the first track switch and is moved to the corresponding position of third track switch mark, to move
Displacement be 0.4 meter.
Step 303, according to target moving distance, the pulse signal quantity of encoder target output is determined.
During specific implementation, it is determined that after the target moving distance of turn-out track trolley, you can according to the installation site of encoder and
Performance parameter, when calculating turn-out track trolley movement target moving distance, the pulse signal quantity of encoder target output.
As an example it is assumed that the encoder being arranged on turn-out track trolley is rotary encoder, mounted on the rolling of turn-out track trolley
On driving wheel, a diameter of 0.01 meter of scroll wheel, encoder every revolution exports 1000 pulses.According to the installation site of encoder and
Performance parameter is it is found that encoder every revolution, and turn-out track trolley moves 0.0314 meter, and encoder every revolution exports 1000 arteries and veins
Signal is rushed, if then the target moving distance of turn-out track trolley is 0.628 meter, it may be determined that the pulse number of encoder target output
It measures as 1000* (0.628/0.0314)=20000.
Step 304, the pulse signal quantity of encoder reality output being arranged on turn-out track trolley is determined.
Wherein, the specific implementation process and principle of above-mentioned steps 304 is referred to the detailed of step 201 in above-described embodiment
Thin description, details are not described herein again.
Step 305, judge whether the quantity of the pulse signal of reality output is more than the first preset value.
Step 306, if so, according to preset control strategy, turn for the motor for driving the turn-out track trolley is reduced
Speed, to reduce the travel speed of turn-out track trolley.
Wherein, the first preset value can be configured, specifically according to the pulse signal quantity that encoder target exports
, it could be provided as the value of pulse signal quantity exported close to target.For example, it is assumed that the pulse signal of encoder target output
Quantity is 10000, then the first preset value could be provided as 9000, etc..
Preset control strategy refers to the method for specific control turn-out track trolley travel speed.For example, it can determine turn-out track
When the distance that trolley currently moves is close to target location, the travel speed of turn-out track trolley is reduced；Alternatively, it can also be according to turn-out track
The distance of trolley distance objective position gradually adjusts travel speed of turn-out track trolley etc., and the present embodiment does not limit this
It is fixed.
During specific implementation, since turn-out track trolley is moved under the drive of motor, and the confession of the rotating speed of motor and motor
Electric frequency is related, then in the embodiment of the present application, if the pulse signal quantity of encoder reality output is more than the first preset value
When, it represents that turn-out track trolley is identified already close to target track switch, at this point it is possible to according to preset control strategy, is driven by reducing
The frequency of supply of the motor of turn-out track trolley, to reduce the rotating speed of motor, and then reduce the travel speed of turn-out track trolley.
Furthermore it is also possible to according to the quantity of the pulse signal of reality output, with the quantity of the pulse signal of target output
Size of the difference continuously decreases the travel speed of turn-out track trolley.Specifically, the number of the pulse signal of reality output can be pre-set
Amount and the difference of the quantity of the pulse signal of target output and the mapping relations of the travel speed of turn-out track trolley, then determining
After the size of the difference, you can the travel speed of turn-out track trolley is reduced to preset speed, and turn-out track trolley is finally made to stop.
For example, if the quantity of the pulse signal of pre-set reality output, with the pulse signal of target output
When the difference of quantity is 1000, the travel speed of turn-out track trolley is reduced to 0.01 metre per second (m/s), the number of the pulse signal of reality output
The travel speed of turn-out track trolley when the difference with the quantity of the pulse signal of target output is 500, is reduced to 0.005 meter often by amount
Second, then when the quantity of the pulse signal of target output is 10000, then when the quantity of the pulse signal of reality output is 9000
When, you can the travel speed of turn-out track trolley is reduced to 0.01 metre per second (m/s), when the quantity of the pulse signal of reality output is 9500
When, the travel speed of turn-out track trolley can be reduced to 0.005 metre per second (m/s), etc..
With reference to concrete scene shown in Fig. 4, the changing points control method that the application provides is carried out furtherly
It is bright.Fig. 4 is the realization schematic diagram of a scenario of changing points control method that the application provides.As shown in figure 4, if controller passes through meter
It counts, after the pulse signal quantity for determining the encoder reality output being arranged on turn-out track trolley, determines the pulse letter of reality output
Number quantity be more than the first preset value, then the frequency of supply of motor can be adjusted by frequency converter, adjust the rotating speed of motor,
In, frequency converter can be by rectification (AC to DC), filtering, inversion (direct current becomes exchange), brake unit, driving unit, detection
The compositions such as unit microprocessing unit control the electric control appliance of motor by changing motor working power Frequency Patterns, from
And the rotating speed of motor is adjusted, and to reduce the travel speed of turn-out track trolley, in the quantity of the pulse signal of encoder reality output, with
After the difference of the quantity of the pulse signal of target output changes, then the frequency of supply by adjusting motor, continue to reduce electricity
The rotating speed of machine finally makes turn-out track trolley stop.
The changing points control method of the embodiment of the present application first after drop-on-demand is received, determines that encoder target is defeated
The pulse signal quantity gone out, then determines the pulse signal quantity of encoder reality output being arranged on turn-out track trolley, then
When the quantity of the pulse signal of reality output is more than the first preset value, according to preset control strategy, described turn of driving is reduced
The rotating speed of the motor of rut trolley, to reduce the travel speed of turn-out track trolley.Hereby it is achieved that using encoder by turnout junction girder
And turn-out track trolley shift position and movement speed be converted to digital signal, real time monitoring and control changing points situation, and root
According to the moving displacement situation of turn-out track trolley, the speed of control turn-out track trolley movement gradually makes turn-out track trolley stop, improves track switch
Response speed during turn-out track, avoids mechanical damage, improves safety.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the application.
Any process described otherwise above or method description are construed as in flow chart or herein, represent to include
Module, segment or the portion of the code of the executable instruction of one or more the step of being used to implement specific logical function or process
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, to perform function, this should be by the application
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If for example, with hardware come realize in another embodiment, can be under well known in the art
Any one of row technology or their combination are realized：With for the logic gates to data-signal realization logic function
Discrete logic, have suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, the program when being executed, one or a combination set of the step of including embodiment of the method.
In addition, each functional unit in each embodiment of the application can be integrated in a first processing module,
Can be that each unit is individually physically present, can also two or more units be integrated in a module.It is above-mentioned integrated
Module both may be used hardware form realize, can also be realized in the form of software function module.The integrated mould
If block is realized in the form of software function module and is independent product sale or is counted in use, one can also be stored in
In calculation machine read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although it has been shown and retouches above
Embodiments herein is stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the application
System, those of ordinary skill in the art can be changed above-described embodiment, change, replace and become within the scope of application
Type.
Claims (16)
1. a kind of changing points control system, which is characterized in that including：Encoder, controller and motor, wherein, the coding
Device is arranged on turn-out track trolley, for when the turn-out track trolley moves, output pulse signal；The motor is described for driving
Turn-out track trolley；The controller is used to determine the pulse signal quantity of the encoder reality output, and judges that the reality is defeated
Whether the quantity of the pulse signal gone out is in preset range, if so, the motor is controlled to drive the turn-out track trolley parking.
2. the system as claimed in claim 1, which is characterized in that the encoder be rotary encoder, the rotary-type coding
Device is arranged on the scroll wheel of the turn-out track trolley, and the controller determines the rotary encoder reality output according to angular displacement
Pulse signal quantity.
3. the system as claimed in claim 1, which is characterized in that the encoder is linear type encoder, and the linear type is compiled
Code device is arranged on the car body of the turn-out track trolley, and the controller determines that the linear type encoder is practical according to straight-line displacement
The pulse signal quantity of output.
4. system as described in any one of claims 1-3, which is characterized in that the controller is additionally operable to：
Judge whether the quantity of the pulse signal of the reality output is more than the first preset value；
If so, according to preset control strategy, the rotating speed for the motor for driving the turn-out track trolley is reduced, with described in reduction
The travel speed of turn-out track trolley.
5. system as claimed in claim 4, which is characterized in that the controller is additionally operable to：
According to the quantity of the pulse signal of the reality output, the size with the difference of the quantity of the pulse signal of target output,
Continuously decrease the travel speed of the turn-out track trolley.
6. system as claimed in claim 5, which is characterized in that the controller is additionally operable to：
Drop-on-demand is received, the drop-on-demand includes target track switch mark；
It is identified according to the target track switch, determines the target moving distance of the turn-out track trolley；
According to the target moving distance, the pulse signal quantity of the target output of encoder is determined.
7. system as claimed in claim 6, which is characterized in that the controller is additionally operable to：
According to the installation site and performance parameter of the encoder, when calculating the encoder and moving the target moving distance,
The pulse signal quantity of the target output.
8. system as claimed in claims 6 or 7, which is characterized in that the controller is additionally operable to：
Determine the corresponding first track switch mark in position that the turn-out track trolley is currently located；
According to the mapping relations of preset track switch mark and distance, determine that the first track switch mark is identified with the target track switch
Between target moving distance.
9. a kind of changing points control method, which is characterized in that include the following steps：
Determine the pulse signal quantity of encoder reality output being arranged on turn-out track trolley；
Judge the quantity of the pulse signal of the reality output whether in preset range；
If so, the turn-out track trolley is controlled to stop.
10. method as claimed in claim 9, which is characterized in that the encoder be rotary encoder, the rotary-type coding
Device is arranged on the scroll wheel of the turn-out track trolley, and the controller determines the rotary encoder reality output according to angular displacement
Pulse signal quantity.
11. method as claimed in claim 9, which is characterized in that the encoder is linear type encoder, and the linear type is compiled
Code device is arranged on the car body of the turn-out track trolley, and the controller determines that the linear type encoder is practical according to straight-line displacement
The pulse signal quantity of output.
12. the method as described in claim 9-11 is any, which is characterized in that whether the quantity for judging the pulse signal
In preset range, including：
Judge whether the quantity of the pulse signal of the reality output is more than the first preset value；
If so, according to preset control strategy, the rotating speed for the motor for driving the turn-out track trolley is reduced, with described in reduction
The travel speed of turn-out track trolley.
13. method as claimed in claim 12, which is characterized in that it is described according to preset control strategy, it reduces described in driving
The rotating speed of the motor of turn-out track trolley, to reduce the travel speed of the turn-out track trolley, including：
According to the quantity of the pulse signal of the reality output, the size with the difference of the quantity of the pulse signal of target output,
Continuously decrease the travel speed of the turn-out track trolley.
14. method as claimed in claim 13, which is characterized in that described to determine the encoder being arranged on turn-out track trolley reality
Before the pulse signal quantity of output, further include：
Drop-on-demand is received, the drop-on-demand includes target track switch mark；
It is identified according to the target track switch, determines the target moving distance of the turn-out track trolley；
According to the target moving distance, the pulse signal quantity of the encoder target output is determined.
15. method as claimed in claim 14, which is characterized in that it is described according to the target moving distance, determine the volume
The pulse signal quantity of code device target output, including：
According to the installation site and performance parameter of the encoder, when calculating the encoder and moving the target moving distance,
The pulse signal quantity of target output.
16. the method as described in claims 14 or 15, which is characterized in that it is described to be identified according to the target track switch, determine institute
The target moving distance of turn-out track trolley is stated, including：
Determine the corresponding first track switch mark in position that the turn-out track trolley is currently located；
According to the mapping relations of preset track switch mark and distance, determine that the first track switch mark is identified with the target track switch
Between target moving distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260747.6A CN108263429A (en) | 2016-12-30 | 2016-12-30 | Changing points control method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260747.6A CN108263429A (en) | 2016-12-30 | 2016-12-30 | Changing points control method and system |
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| CN108263429A true CN108263429A (en) | 2018-07-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611260747.6A Pending CN108263429A (en) | 2016-12-30 | 2016-12-30 | Changing points control method and system |
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| CN (1) | CN108263429A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111319654A (en) * | 2020-01-22 | 2020-06-23 | 广东智源机器人科技有限公司 | Track switching method, device, storage medium and system |
| CN112441067A (en) * | 2019-08-30 | 2021-03-05 | 比亚迪股份有限公司 | Turnout switch-back control method, device and system |
| CN112441066A (en) * | 2019-08-27 | 2021-03-05 | 比亚迪股份有限公司 | Method and device for controlling switch points, storage medium, electronic device and switch points |
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Application publication date: 20180710 |