CN110908004A - Servicing yard locomotive platform location positioning system and positioning method - Google Patents
Servicing yard locomotive platform location positioning system and positioning method Download PDFInfo
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- CN110908004A CN110908004A CN201911296386.4A CN201911296386A CN110908004A CN 110908004 A CN110908004 A CN 110908004A CN 201911296386 A CN201911296386 A CN 201911296386A CN 110908004 A CN110908004 A CN 110908004A
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- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
Abstract
The embodiment of the invention discloses a positioning system and a positioning method for a locomotive station of a servicing yard, wherein the system comprises a first detection module, a second detection module and a positioning module, wherein the first detection module is used for outputting a switching value signal when a locomotive enters or exits from the locomotive station; the second detection module is used for outputting a switching value signal when a locomotive enters or exits from the locomotive platform; the controller is respectively and electrically connected with the first detection module and the second detection module of the corresponding section of the yard station, is used for receiving switching value signals respectively sent by the first detection module and the second detection module, and sends the switching value signals to the upper computer through a wireless network; and the upper computer is used for receiving signals sent by the controller of each section of the station of the service yard and determining whether the locomotive exists in each section of the station of the service yard according to the received signals, so that the effect of simply and effectively positioning the station of the locomotive in the service yard accurately and effectively is realized.
Description
Technical Field
The embodiment of the invention relates to a servicing yard locomotive management technology, in particular to a servicing yard locomotive platform location positioning system and a servicing yard locomotive platform location positioning method.
Background
In the process of the locomotive entering the servicing yard for operation, because the servicing yard has a plurality of different operation stations and each locomotive needs to enter a plurality of different stations for operation, the locomotive needs to be reasonably dispatched to operate at different operation stations, and the locomotive needs to be accurately positioned in the process.
The current commonly used locomotive station location mode mainly comprises a plurality of sensors and a controller for matching location, locomotive passing conditions are judged by laying locomotive ground sensing devices on two sides of each station of a station track of a stock yard, locomotive numbers are obtained and confirmed by a video image identification module, a locomotive tag reading module and a locomotive number identification module, signals sent by the modules are received by a PLC (programmable logic controller) and sent to a location system server, and then the location system server establishes the correspondence between the locomotive numbers and the locomotive passing positions according to the current passing time, the locomotive running direction, the relevance between the locomotive number identification positions and the locomotive passing positions so as to obtain the position information of a target vehicle.
However, the number of modules involved in the prior art is large, the number of wiring harnesses is large, the implementation process is complex, and the cost is correspondingly high.
Disclosure of Invention
The invention provides a positioning system and a positioning method for a locomotive station of a servicing yard, which can simply and effectively realize the accurate positioning of the locomotive station of the servicing yard.
In a first aspect, an embodiment of the present invention provides a system for positioning a station of a rail yard locomotive, where the system includes:
the first detection module is arranged at an inlet on one side of each section of the service yard table position and used for outputting a switching value signal when a locomotive enters or exits from the locomotive table position;
the second detection module is arranged at the outlet of the corresponding section of the yard station on the same side as the first detection module and is used for outputting a switching value signal when a locomotive enters or exits from the locomotive station;
the controller is arranged at the inlet or the outlet of each section of the staging station, is respectively and electrically connected with the first detection module and the second detection module of the corresponding section of the staging station, is used for receiving switching value signals respectively sent by the first detection module and the second detection module, and sends the switching value signals to the upper computer through a wireless network;
the upper computer is used for receiving signals sent by the controller of each section of the yard station and determining whether the locomotive exists in each section of the yard station according to the received signals.
In a second aspect, an embodiment of the present invention further provides a method for positioning a service yard locomotive station, which is performed by a service yard locomotive station positioning system, where the service yard locomotive station positioning system includes: the system comprises a first detection module, a second detection module, a controller and an upper computer, wherein the first detection module is arranged at an inlet on one side of each section of the staging platform, the second detection module is arranged at an outlet on the same side of the corresponding section of the staging platform and the first detection module, the controller is arranged at the inlet or the outlet of each section of the staging platform, and the first detection module and the second detection module of the corresponding section of the staging platform are respectively and electrically connected with each other;
the method comprises the following steps:
the first detection module outputs a switching value signal when a locomotive enters or exits from the locomotive platform;
the second detection module outputs a switching value signal when a locomotive enters or exits from the locomotive platform;
the controller receives switching value signals respectively sent by the first detection module and the second detection module and sends the switching value signals to the upper computer through a wireless network;
the upper computer receives signals sent by the controllers of all the sections of the servicing yard stations, and determines whether locomotives exist in all the sections of the servicing yard stations according to the received signals.
The invention has the advantages that the detection modules are respectively arranged at the inlet and the outlet of each section of the service yard station, when a locomotive enters and exits the station, the switching value signal is output, the switching value signal is collected by the controller arranged at the corresponding section of the service yard station, and the collected switching value signal is sent to the upper computer through the wireless network, and the upper computer determines whether the locomotive exists in each section of the service yard station according to the received signal.
Drawings
FIG. 1 is a schematic structural diagram of a servicing yard locomotive position locating system according to a first embodiment of the present invention;
FIG. 2 is a block diagram of a location system for a rail yard locomotive station according to a second embodiment of the present invention;
fig. 3 is a flowchart of a method for locating a service yard locomotive station according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a schematic structural diagram of a servicing yard locomotive position locating system according to an embodiment of the present invention, and exemplarily, referring to fig. 1, the system includes:
the first detection modules 111, 121 and 131 are arranged at the inlets on one side of the stations of each section of the yard and are used for outputting switching value signals when a locomotive enters or exits from the stations of the locomotive;
the second detection modules 112, 122 and 132 are arranged at the outlets on the same sides of the corresponding section of the yard station and the first detection module and are used for outputting switching value signals when a locomotive enters or exits from the locomotive station;
the controllers 113, 123 and 133 are arranged at the inlet or the outlet of each section of the staging platform, are respectively and electrically connected with the first detection module and the second detection module of the corresponding section of the staging platform, are used for receiving switching value signals respectively sent by the first detection module and the second detection module, and send the switching value signals to the upper computer through a wireless network;
the upper computer 140 is configured to receive signals sent by the controllers 113, 123, and 133 of each yard, and determine whether a locomotive exists in each yard according to the received signals.
The locomotive servicing yard has a plurality of locomotive stations, fig. 1 exemplarily shows a 1-section servicing yard station 110, a 2-section servicing yard station 120 and a 3-section servicing yard station 130, each section of servicing yard station is taken as a logic identification area, and a first detection module and a second detection module are respectively arranged at an inlet and an outlet of the section and are used for outputting switching value signals when a locomotive enters or exits from the servicing yard in the section. And a controller is also arranged at the inlet or the outlet of each logic identification section, is respectively and electrically connected with the first detection module and the second detection module of the section where the controller is located through serial ports, and is used for acquiring switching value signals respectively sent by the first detection module and the second detection module of the section where the controller is located and sending the acquired switching value signals to the upper computer. And after the upper computer receives the switching value signals sent by the controller of each section of the yard, analyzing and judging whether the locomotive exists in the station of each section of the yard according to the received switching value signals.
According to the embodiment of the invention, the detection modules are respectively arranged at the inlet and the outlet of each section of the service yard station, when a locomotive enters and exits the station, a switching value signal is output, the switching value signal is collected by the controller arranged at the corresponding section of the service yard station, and the collected switching value signal is sent to the upper computer through the wireless network, and the upper computer determines whether the locomotive exists in each section of the service yard station according to the received signal.
Optionally, if the state signals output by the first detection module and the second detection module collected in three consecutive stages of the controller of each section of the staging platform meet: in the first stage, the first detection module and the second detection module both output off signals; in the second stage, the first detection module outputs an on signal and the second detection module outputs an off signal; in the third stage, the first detection module and the second detection module both output on signals, and then the service yard stations of the corresponding section into which the organic vehicle drives are determined, wherein the three continuous stages respectively comprise the first stage, the second stage and the third stage.
For example, taking the 1-segment yard station 110 in fig. 1 as an example, when no locomotive is driven into the 1-segment yard station 110, the first detection module 111 and the second detection module 112 both output an off signal and send the off signal to the controller 113; when a locomotive enters the 1-section yard station 110 and just enters the entrance, the first detection module 111 outputs an on signal and sends the on signal to the controller 113 due to being shielded by the locomotive, and the second detection module 112 outputs an off signal and sends the off signal to the controller 113 without being shielded; when the locomotive completely drives into the station 110 of the current 1-section yard, namely the locomotive shields the first detection module 111 and the second detection module 112 at the inlet and the outlet, the first detection module 111 and the second detection module 112 both output an on signal and send the on signal to the controller 113; the controller 113 sends the switching value signals to the upper computer 140 through a wireless network, and the upper computer 140 can judge that the 1-section yard station 110 has the organic vehicle to drive into according to the switching value change conditions of the first detection module 111 and the second detection module 112 in the three stages.
If the state signals output by the first detection module and the second detection module collected in three continuous stages of the controller of each section of the yard station meet the requirements, the conditions of only upper half station, only lower half station, accidental human interference and the like of the locomotive can be eliminated, and the locomotive station can be determined to have an organic locomotive to drive in.
Optionally, if the state signals output by the first detection module and the second detection module collected in three consecutive stages of the controller of each section of the staging platform meet: in the first stage, the first detection module and the second detection module both output open signals; in the second stage, the first detection module outputs an off signal and the second detection module outputs an on signal; in the third stage, the first detection module and the second detection module both output off signals, and then the organic vehicle is determined to drive away from the service yard station of the corresponding section; wherein the three successive stages include a first stage, a second stage, and a third stage, respectively.
For example, taking the 1-segment yard station 110 in fig. 1 as an example, when there is a locomotive stop at the 1-segment yard station 110, the first detection module 111 and the second detection module 112 both output an on signal and send the on signal to the controller 113; when a locomotive existing in the 1-section yard station 110 is about to drive away and just drives away from an entrance, the first detection module 111 outputs an off signal and sends the off signal to the controller 113 because the locomotive is not shielded, and the second detection module 112 is still shielded by the locomotive and outputs an on signal and sends the on signal to the controller 113; when the locomotive completely drives away from the current 1-section yard platform 110, that is, the first detection module 111 and the second detection module 112 at the entrance and the exit are not blocked, both the first detection module 111 and the second detection module 112 output an off signal and send the off signal to the controller 113; the controller 113 sends the switching value signals to the upper computer 140 through a wireless network, and the upper computer 140 can judge that the organic vehicle in the 1-section yard platform 110 is driven away according to the switching value change conditions of the first detection module 111 and the second detection module 112 in the three stages.
If the state signals output by the first detection module and the second detection module collected in three continuous stages of the controller of each section of the service yard station meet the requirements, the situations that the locomotive enters the locomotive station, only the upper half station, only the lower half station, accidental human interference and the like exist in the locomotive station can be eliminated, and the locomotive station can be determined to have the locomotive to leave.
Optionally, the upper computer is further configured to calculate the passing time of the locomotive at the corresponding section of the yard station according to the state change time of the switching values of the first detection module and the second detection module of each section of the yard station.
When the locomotive enters or leaves, the first detection module and the second detection module of each section of the platform of the service yard send out switching value signals, and simultaneously record and send the time of sending out the switching value signals, and the upper computer can calculate the passing time, the entering time, the leaving time and the like of the locomotive of the corresponding section of the platform of the service yard according to the time.
Optionally, the upper computer is further configured to determine the running direction of the locomotive corresponding to each section of the yard station according to the change conditions of the switching values of the first detection module and the second detection module of each section of the yard station.
The driving-in direction and the driving-out direction of the locomotive can be judged according to the change conditions of the switching values of the first detection module and the second detection module.
The positioning system for the locomotive stand of the servicing yard, provided by the embodiment of the invention, can execute the positioning method for the locomotive stand of the servicing yard, provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example two
On the basis of the above embodiments, this embodiment exemplarily describes the positioning situation when the first detection module and the second detection module can be the first infrared diffuse reflection photoelectric sensor and the second infrared diffuse reflection photoelectric sensor, respectively. Fig. 2 is a block diagram of a positioning system for a station of a rail yard locomotive according to a second embodiment of the present invention.
Illustratively, the first detection module and the second detection module are a first infrared diffuse reflection photoelectric sensor 210 and a second infrared diffuse reflection photoelectric sensor 220, respectively, and each of the first infrared diffuse reflection photoelectric sensor 210 and the second infrared diffuse reflection photoelectric sensor 220 includes a transmitter and a receiver.
The first infrared diffuse reflection photoelectric sensor 210 and the second infrared diffuse reflection photoelectric sensor 220 return a switching value signal by using the principle of whether infrared rays are blocked, so that whether a locomotive exists in a locomotive platform or not can be determined.
When a locomotive enters an entrance, the locomotive reflects light emitted by the emitter of the first infrared diffuse reflection photoelectric sensor 210 to the receiver, and the first infrared diffuse reflection photoelectric sensor 210 generates an on signal; when the locomotive leaves the entrance, no object reflects the light emitted from the emitter of the first infrared diffuse reflection photoelectric sensor to the receiver, and the first infrared diffuse reflection photoelectric sensor 210 generates an off signal;
when the locomotive is driven to the platform, the infrared diffuse reflection photoelectric sensor detects that the detected object is shielded, the object reflects enough light emitted by the emitter of the infrared diffuse reflection photoelectric sensor to the receiver, and the infrared diffuse reflection photoelectric sensor generates an on signal.
When the locomotive enters the exit, the locomotive reflects the light emitted by the emitter of the second infrared diffuse reflection photoelectric sensor 220 to the receiver, and the second infrared diffuse reflection photoelectric sensor 220 generates an on signal; when the locomotive leaves the exit, no object reflects the light emitted by the emitter of the second ir diffuse reflectance photosensor 220 to the receiver, and the second ir diffuse reflectance photosensor 220 generates an off signal.
When the locomotive drives off the platform, the infrared diffuse reflection photoelectric sensor cannot detect the shielding of the detected object, no object reflects enough light emitted by the emitter of the infrared diffuse reflection photoelectric sensor to the receiver, and the infrared diffuse reflection photoelectric sensor generates a closing signal.
EXAMPLE III
Fig. 3 is a flowchart of a positioning method for a station of a yard locomotive provided in the third embodiment of the present invention, and this embodiment is applicable to a process implemented by a positioning system for a station of a locomotive, and the method may be executed by the positioning system for a station of a yard locomotive in any embodiment of the present invention, and specifically includes the following steps:
the first detection module outputs an on signal because the first detection module is shielded by the locomotive when the locomotive enters, and outputs an off signal because the first detection module is not shielded by a shielding object when the shielded locomotive exits.
the second detection module outputs an on signal because the locomotive is shielded when the locomotive enters, and outputs an off signal because the shielded locomotive does not have shielding objects when the shielded locomotive exits.
the system adopts an all-IP network data transmission structure, the traditional cement ground wiring mode of cutting is not needed under the condition that the wireless network environment is good, and the controller sends the acquired signals to the upper computer through the wireless network.
And 340, receiving the signals sent by the controller of each section of the yard station by the upper computer, and determining whether a locomotive exists in each section of the yard station according to the received signals.
Wherein, the host computer can gather the switching value signal that the controller sent every several milliseconds.
The working principle of the method for positioning the locomotive station of the servicing yard is as follows: the first detection module and the second detection module send out switching value signals every few milliseconds according to the actual shielding condition, the controller collects the switching value signals sent by the first detection module and the second detection module and sends the switching value signals to the upper computer through a wireless network, and the upper computer can judge whether the locomotive, the running direction of the locomotive, the passing time of the locomotive and the like exist in the locomotive station according to the change condition of the switching values of the first detection module and the second detection module.
The specific method for judging whether the locomotive is at the locomotive station comprises the following steps: if the state signals output by the first detection module and the second detection module collected in three continuous stages of the controller of each section of the service yard station meet the following conditions: in the first stage, the first detection module and the second detection module both output off signals; in the second stage, the first detection module outputs an on signal and the second detection module outputs an off signal; in the third stage, the first detection module and the second detection module both output on signals, and the upper computer determines that the organic vehicle drives into the staging area station of the corresponding section, wherein the three continuous stages respectively comprise a first stage, a second stage and a third stage.
For example, taking the 1-segment yard station 110 in fig. 1 as an example, when no locomotive is driven into the 1-segment yard station 110, the first detection module 111 and the second detection module 112 both output an off signal and send the off signal to the controller 113; when a locomotive enters the 1-section yard station 110 and just enters the entrance, the first detection module 111 outputs an on signal and sends the on signal to the controller 113 due to being shielded by the locomotive, and the second detection module 112 outputs an off signal and sends the off signal to the controller 113 without being shielded; when the locomotive completely drives into the station 110 of the current 1-section yard, namely the locomotive shields the first detection module 111 and the second detection module 112 at the inlet and the outlet, the first detection module 111 and the second detection module 112 both output an on signal and send the on signal to the controller 113; the controller 113 sends the switching value signals to the upper computer 140 through a wireless network, and the upper computer 140 can judge that the 1-section yard station 110 has the organic vehicle to drive into according to the switching value change conditions of the first detection module 111 and the second detection module 112 in the three stages.
If the state signals output by the first detection module and the second detection module collected in three continuous stages of the controller of each section of the service yard station meet the following conditions: in the first stage, the first detection module and the second detection module both output open signals; in the second stage, the first detection module outputs an off signal and the second detection module outputs an on signal; in the third stage, the first detection module and the second detection module both output off signals, and the upper computer determines that the organic vehicle drives away from the service yard station of the corresponding section; wherein the three successive stages include a first stage, a second stage, and a third stage, respectively.
For example, taking the 1-segment yard station 110 in fig. 1 as an example, when there is a locomotive stop at the 1-segment yard station 110, the first detection module 111 and the second detection module 112 both output an on signal and send the on signal to the controller 113; when a locomotive existing in the 1-section yard station 110 is about to drive away and just drives away from an entrance, the first detection module 111 outputs an off signal and sends the off signal to the controller 113 because the locomotive is not shielded, and the second detection module 112 is still shielded by the locomotive and outputs an on signal and sends the on signal to the controller 113; when the locomotive completely drives away from the current 1-section yard platform 110, that is, the first detection module 111 and the second detection module 112 at the entrance and the exit are not blocked, both the first detection module 111 and the second detection module 112 output an off signal and send the off signal to the controller 113; the controller 113 sends the switching value signals to the upper computer 140 through a wireless network, and the upper computer 140 can judge that the organic vehicle in the 1-section yard platform 110 is driven away according to the switching value change conditions of the first detection module 111 and the second detection module 112 in the three stages.
The method for judging the running direction and the passing time of the locomotive respectively comprises the following steps: the upper computer can judge the driving-in direction and the driving-out direction of the locomotive according to the change conditions of the switching values of the first detection module and the second detection module. When the locomotive drives in or drives out, the first detection module and the second detection module of each section of the service yard station send out switching value signals, and simultaneously record and send out the time of sending out the switching value signals, and the upper computer can calculate the passing time, the driving-in time, the driving-out time and the like of the locomotive of the corresponding section of the service yard station according to the time.
In addition, the upper computer can write information such as switching value signals sent by the first detection module and the second detection module of each section of the station location of the servicing yard, calculated locomotive passing time, judged locomotive running direction and the like into a database, so that data information sharing is provided for a transport security system, a station track positioning system and a train number identification system, and third-party software such as an electronic map is used for integrating current station data.
According to the technical scheme, the detection modules are respectively arranged at the inlet and the outlet of each section of the station position of the service yard, when a locomotive enters and exits the station position, a switching value signal is output, the switching value signal is collected by the controller arranged at the station position of the corresponding section of the service yard, the collected switching value signal is sent to the upper computer through the wireless network, and the upper computer determines whether the locomotive exists in each section of the station position of the service yard according to the received signal.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A service yard locomotive berth positioning system, comprising:
the first detection module is arranged at an inlet on one side of each section of the service yard station and used for outputting a switching value signal when a locomotive enters or exits from the locomotive station;
the second detection module is arranged at an outlet on the same side of the corresponding section of the yard station position and the first detection module and is used for outputting a switching value signal when a locomotive enters or exits from the locomotive station position;
the controller is arranged at the inlet or the outlet of each section of the staging platform, is respectively and electrically connected with the first detection module and the second detection module of the corresponding section of the staging platform, is used for receiving switching value signals respectively sent by the first detection module and the second detection module, and sends the switching value signals to the upper computer through a wireless network;
the upper computer is used for receiving signals sent by the controller of each section of the yard station, and determining whether a locomotive exists in each section of the yard station according to the received signals.
2. The yard locomotive station positioning system of claim 1, wherein if the status signals output by the first detection module and the second detection module collected in three consecutive phases of the controller for each yard station are satisfied: in a first stage, the first detection module and the second detection module both output off signals; in the second stage, the first detection module outputs an on signal and the second detection module outputs an off signal; in a third stage, the first detection module and the second detection module both output on signals, and then the service yard stations of the corresponding section into which the organic vehicle drives are determined, wherein the three continuous stages respectively comprise the first stage, the second stage and the third stage.
3. The yard locomotive station positioning system of claim 1, wherein if the status signals output by the first detection module and the second detection module collected in three consecutive phases of the controller for each yard station are satisfied: in the first stage, the first detection module and the second detection module both output open signals; in the second stage, the first detection module outputs an off signal and the second detection module outputs an on signal; in the third stage, if the first detection module and the second detection module both output off signals, it is determined that the organic vehicle is driven away from the service yard station of the corresponding section; wherein the three successive stages include the first stage, the second stage, and the third stage, respectively.
4. The staging area locomotive position locating system of claim 1, wherein the first and second detection modules are first and second infrared diffuse reflectance photoelectric sensors, respectively, each comprising a transmitter and a receiver.
5. The staging area locomotive position locating system of claim 4, wherein when a locomotive enters the entry, the locomotive reflects light emitted by the transmitter of the first infrared diffuse reflectance photosensor to a receiver, the first infrared diffuse reflectance photosensor generating an on signal; when the locomotive leaves the entrance, no object reflects the light emitted by the emitter of the first infrared diffuse reflection photoelectric sensor to the receiver, and the first infrared diffuse reflection photoelectric sensor generates an off signal;
when the locomotive enters the outlet, the locomotive reflects the light emitted by the emitter of the second infrared diffuse reflection photoelectric sensor to the receiver, and the second infrared diffuse reflection photoelectric sensor generates an on signal; when the locomotive leaves the outlet, no object reflects the light emitted by the emitter of the second infrared diffuse reflection photoelectric sensor to the receiver, and the second infrared diffuse reflection photoelectric sensor generates an off signal.
6. The yard locomotive position locating system according to claim 1, wherein the upper computer is further configured to calculate the passing time of the corresponding section of yard position locomotive according to the state change time of the switching values of the first detection module and the second detection module of each section of yard position.
7. The yard locomotive station positioning system according to claim 1, wherein the upper computer is further configured to determine the running direction of the locomotive corresponding to each yard station according to the variation of the switching values of the first detection module and the second detection module of each yard station.
8. A yard locomotive station positioning method is executed by a yard locomotive station positioning system, and is characterized in that the yard locomotive station positioning system comprises: the system comprises a first detection module, a second detection module, a controller and an upper computer, wherein the first detection module is arranged at an inlet on one side of each section of the staging platform, the second detection module is arranged at an outlet on the same side of the corresponding section of the staging platform and the first detection module, the controller is arranged at the inlet or the outlet of each section of the staging platform, and the first detection module and the second detection module of the corresponding section of the staging platform are respectively and electrically connected with each other;
the method comprises the following steps:
the first detection module outputs a switching value signal when a locomotive enters or exits from the locomotive platform;
the second detection module outputs a switching value signal when a locomotive enters or exits from the locomotive platform;
the controller receives switching value signals respectively sent by the first detection module and the second detection module and sends the switching value signals to an upper computer through a wireless network;
and the upper computer receives signals sent by the controller of each section of the servicing yard station, and determines whether a locomotive exists in each section of the servicing yard station according to the received signals.
9. The method of claim 8, wherein the upper computer receives signals from the controller of each yard, and determines whether a locomotive is present in each yard based on the received signals, comprising:
if the state signals output by the first detection module and the second detection module collected in three continuous stages of the controller of each section of the service yard station meet the following conditions: in a first stage, the first detection module and the second detection module both output off signals; in the second stage, the first detection module outputs an on signal and the second detection module outputs an off signal; in a third stage, the first detection module and the second detection module both output on signals, and the upper computer determines that the organic vehicle drives into a staging platform of a corresponding stage, wherein the three successive stages respectively comprise the first stage, the second stage and the third stage.
10. The method of claim 8, wherein the upper computer receives signals from the controller of each yard, and determines whether a locomotive is present in each yard based on the received signals, comprising:
if the state signals output by the first detection module and the second detection module collected in three continuous stages of the controller of each section of the service yard station meet the following conditions: in the first stage, the first detection module and the second detection module both output open signals; in the second stage, the first detection module outputs an off signal and the second detection module outputs an on signal; in the third stage, the first detection module and the second detection module both output off signals, and the upper computer determines that the organic vehicle is driven away from the service yard station of the corresponding section; wherein the three successive stages include the first stage, the second stage, and the third stage, respectively.
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