CN101186217A - Structure of Safety Monitoring Expert System for Shunting Locomotive Operation - Google Patents

Abstract

The invention relates to the structure of an expert system for safety monitoring of shunting locomotive operations, and relates to the field of computer integrated control. At present, the accident rate of domestic railway shunting operations is relatively high, and a flat shunting light display system is used in the shunting operation process, but due to Shunting personnel and drivers and passengers confirm that ground locomotive signals are prone to errors and cause shunting accidents. The manual control mode of the shunting operation in the present invention is a computer-aided monitoring method, including two parts: the ground expert system and the on-board expert system. Locomotive positioning and orientation, using wireless data transmission technology to realize the real-time display of ground locomotive signals and planned task orders on the locomotive, the driver can clearly understand the ground situation through the display, and can realize automatic judgment and control, ensuring the safety of shunting operations The beneficial effects of reliability, accuracy and reliability.

Description

Structure of Safety Monitoring Expert System for Shunting Locomotive Operation

technical field

The invention relates to the field of computer integrated control devices, in particular to an operation safety monitoring device for railway systems.

Background technique

At present, the accident rate of domestic railway shunting operations is extremely high, which has become a major bottleneck restricting the production safety of railway transportation. Although many marshalling yards and large and medium-sized stations use the plane shunting light display system in the shunting operation process, because the current plane shunting light display system mainly relies on the shunting personnel and the drivers and passengers to confirm the ground locomotive signal, it is easy Shunting accidents such as locomotive rushing, bumping and rolling derailers, bumping into soil blocks, squeezing turnouts, and locomotive conflicts occurred due to wrong lookout signals or momentary negligence.

Contents of the invention

The purpose of the present invention is to avoid the operation safety hazards of existing shunting locomotives that rely on shunting personnel and drivers and passengers to confirm the ground locomotive signals, and to provide a safe, accurate, reliable, stable, and highly automated shunting locomotive. The structure of the expert system of the monitoring device, the manual control method of the shunting operation is a computer-aided monitoring method, which can effectively help the driver to prevent shunting operation accidents.

The purpose of the present invention is achieved by the following measures: the expert system is virtualized into a modular structure for the reasons of expression, it includes two parts of the ground expert system structure and the vehicle-mounted expert system structure, and the ground expert system is installed on the monitoring host computer of the station dispatching center Structure, each shunting locomotive is equipped with an on-board expert system structure, and two-way data transmission is realized through the digital transmission station between the two. The structure of the ground expert system includes: signal single-chip communication module, planning single-chip communication module, wireless communication module, data verification module, signal single-chip information analysis module, planning single-chip information analysis module, wireless information analysis module, shunting route analysis module, signal Locomotive state analysis module, locomotive positioning module, locomotive running speed estimation module, locomotive conflict analysis module, control command monitoring and analysis module; vehicle expert system structure includes: wireless communication module, data verification module, shunting route analysis module, signal machine State analysis module, locomotive positioning module, locomotive running speed estimation module, locomotive rushing analysis module, locomotive bumping and derailing device analysis module, locomotive bumping soil block analysis module, squeezed turnout analysis module, control command monitoring and analysis module.

In the structure of the ground expert system, the planning single-chip communication module, the signal single-chip communication module and the wireless communication module are respectively connected with the data verification module, and the data verification module is respectively connected with the planning single-chip information analysis module, the signal single-chip information analysis module and the wireless information analysis module. Module connection, the planning single-chip information analysis module and the signal single-chip information analysis module are connected with the shunting route analysis module, the signal single-chip information analysis module is connected with the signal machine state analysis module, and the wireless information analysis module is sequentially connected with the locomotive positioning module and locomotive running speed estimation The modules are connected, the signal machine state analysis module, the shunting route analysis module and the locomotive running speed estimation module are connected with the locomotive conflict analysis module and the control instruction monitoring analysis module.

In the vehicle-mounted expert system structure, the locomotive positioning module is connected with the locomotive running speed estimation module, the wireless communication module is connected with the data verification module, and then respectively connected with the shunting route analysis module and the signal machine state analysis module, and the locomotive running speed estimation module , the shunting route analysis module and the signal machine state analysis module are respectively connected with the squeezed turnout analysis module, the locomotive collision soil block analysis module, the locomotive bumping derailer analysis module and the locomotive rushing analysis module, the squeezed turnout analysis module, The soil block analysis module, the locomotive bumping derailer analysis module and the locomotive rushing analysis module are connected with the control instruction monitoring analysis module.

The hardware supporting the work of the above modules includes: ground monitoring host, ground monitoring server, signal receiving single-chip microcomputer, planning receiving single-chip microcomputer, ground data transmission radio station, vehicle monitoring host computer, vehicle data transmission radio station, train operation monitoring and recording device interface, train operation monitoring and recording device , RFID reader and RFID buried under ballast.

The working conditions of each module in the ground expert system structure are described as follows:

1. Planning single-chip communication module: regularly receive data such as shunting operation plan and shunting route pre-arrangement in TMIS (Railway Transportation Management Information System), and send it to the data verification module. In addition, the communication between the planned single-chip and the expert system is carried out regularly. Once no information is sent within the specified time interval, the expert system will query the equipment to determine the working status of the planned single-chip. If there is a failure, it will immediately alarm and switch the standby single-chip , to ensure uninterrupted data collection.

2. Signal receiving single-chip microcomputer module: regularly receive DMIS (dispatch management information system) data such as ground signal machine status, track circuit occupancy status, shunting route opening status, etc., and send them to the data verification module. In addition, the communication between the signal receiving microcontroller and the expert system is carried out regularly. Once no information is sent within the specified time interval, the expert system will conduct equipment inquiries to determine the working status of the signal receiving microcontroller. Switching to ensure uninterrupted data collection.

3. Wireless communication module: transmit the collected real-time information to the data verification module. In addition, the communication content and communication time of the wireless data transmission station are related to the specific situation on the site. There may be no communication content for a long period of time, so there will be no communication for a long time. Therefore, it is required to If there is no communication content, it is necessary to send a normal working order to the ground expert system to maintain the regular communication between the vehicle data transmission station and the ground data transmission station. If the information from the vehicle data transmission station is not received beyond the specified time , then the ground expert system will carry out the fault diagnosis of the digital transmission station, and when it is determined that there is a problem with a certain digital transmission station, it will immediately carry out fault alarm processing.

4. Data verification module: Receive the data information received by the planning single-chip communication module, the signal receiving single-chip communication module and the wireless communication module, and perform CRC verification to ensure the accuracy of the transmitted data.

5. Planning single-chip information analysis module: analyze the shunting operation plan information after data verification.

6. Signal single-chip information analysis module: analyze the signal single-chip signal after data verification.

7. Signal state analysis module: Obtain the signal state information in the signal single-chip information analysis module and planning single-chip information analysis module, extract the signal state change amount from the information and change the signal state of the corresponding signal machine. At the same time, in order to prevent accidental status errors, the ground signal status of the station is regularly compared and verified based on the status information of the signal machine collected by the signal receiving single-chip microcomputer, and sent to the locomotive conflict analysis module for conflict analysis.

8. Shunting route analysis module: Obtain the shunting route information in the signal single-chip information analysis module and the planning single-chip information analysis module. When the shunting route is inconsistent, the shunting route information of the signal receiving single-chip The shunting route in the train plan is compared with the actual open shunting route to form a data source for locomotive conflict analysis.

9. Wireless information analysis module: analyze the wireless communication information received by the ground data transmission station after data verification.

10. Locomotive positioning module: Obtain locomotive positioning information through wireless communication, determine the current position of the locomotive, and form a data source for locomotive conflict analysis.

11. Locomotive running speed estimation module: obtain relevant information for estimating the running speed of the locomotive, estimate the current running speed of the locomotive, and form a data source for locomotive conflict analysis.

12. Locomotive conflict analysis module: obtain the result information of comprehensive logic analysis from the signal machine state analysis module, shunting route analysis module and locomotive positioning and speed estimation module for conflict analysis, and immediately report to the relevant locomotive when analyzing the possibility of conflict Make an alarm and report to the on-duty dispatcher at the same time.

13. Control instruction monitoring and analysis module: Obtain the receipt of the conflicting locomotive monitoring instruction, analyze the monitoring receipt instruction, form the quantitative index of the instruction execution result, and perform corresponding result processing according to the quantitative index: re-generate early warning, re-generate alarm or forced braking ; If the command is executed successfully, the system will record the accident analysis conditions, the time of occurrence and other necessary basis to provide information for the analysis of the accident.

The working conditions of each module in the vehicle expert system structure are as follows:

1. Wireless communication module: Obtain the status of the signal machine, the status of the track circuit and the shunting operation plan data of the shunting locomotive passed by the shunting route, and send them to the data verification module.

2. Data verification module: Receive the data information of the wireless communication module and perform CRC verification to ensure the accuracy of the data.

3. Locomotive positioning module: obtain the ground RFID information collected by the vehicle-mounted RFID reader, and determine the current location of the locomotive.

4. Locomotive running speed estimation module: obtain the ground RFID information collected by the vehicle-mounted RFID reader, and estimate the current running speed of the locomotive.

5. Shunting route analysis module: obtain the signal single-chip information in the wireless communication module and the shunting route information in the planning single-chip information, and take the shunting route information of the signal receiving single-chip The shunting route is compared with the actual open shunting route to form a data source for hidden danger analysis.

6. Signal machine state analysis module: Obtain the signal single-chip information in the wireless communication module and the signal machine information in the planning single-chip information, extract the change amount in the information and assign the state of the corresponding equipment in the station. At the same time, in order to prevent accidental state quantity errors, the ground state information of the station is regularly compared with the signal machine state information of the signal receiving single-chip microcomputer, and sent to the locomotive conflict analysis module for conflict analysis.

7. Crowded turnout analysis module: Obtain the data information of the locomotive positioning module, locomotive running speed module, shunting route module and signal machine status module, and analyze hidden dangers of crowded turnouts. If there is a hidden danger of an accident, an early warning, an alarm, and an emergency braking command will be generated sequentially according to the severity index of the plot. The early warning and alarm include sound and light prompts, and the locomotive crew is required to respond at the first time to eliminate the alarm, otherwise the system will generate The mandatory braking command is used to perform mandatory braking on the locomotive through the interface of the train operation monitoring and recording device and the train operation monitoring and recording device.

8. Analysis module of locomotive hitting earth block: obtain data information of locomotive positioning module, locomotive running speed module, shunting route module and signal machine state module, and analyze hidden dangers of locomotive hitting earth block. If there is a potential failure, according to the severity index of the plot, it will generate early warning, alarm, and emergency braking instructions in sequence. The early warning and alarm include sound and light prompts, and require the locomotive crew to respond in the first time to eliminate the alarm, otherwise the system will generate The mandatory braking command is used to perform mandatory braking on the locomotive through the interface of the train operation monitoring and recording device and the train operation monitoring and recording device.

9. Locomotive bumping and derailing device analysis module: obtain the data information of the locomotive positioning module, locomotive running speed module, shunting route module and signal machine status module, and analyze the hidden dangers of the locomotive bumping and derailing device. If there is a potential failure, according to the severity index of the plot, it will generate early warning, alarm, and emergency braking instructions in sequence. The early warning and alarm include sound and light prompts, and require the locomotive crew to respond in the first time to eliminate the alarm, otherwise the system will generate The mandatory braking command is used to perform mandatory braking on the locomotive through the interface of the train operation monitoring and recording device and the train operation monitoring and recording device.

10. Locomotive advance analysis module: obtain data information of locomotive positioning module, locomotive running speed module, shunting route module and signal machine state module, and analyze hidden dangers of locomotive advance device. If there is a potential failure, according to the severity index of the plot, it will generate early warning, alarm, and emergency braking instructions in sequence. The early warning and alarm include sound and light prompts, and require the locomotive crew to respond in the first time to eliminate the alarm, otherwise the system will generate Mandatory braking command, the locomotive is forced to brake through the train operation monitoring and recording device.

11. Control command monitoring and analysis module: obtain the conflicting locomotive monitoring command receipt, analyze the monitoring receipt command, form the quantitative index of the instruction execution result, and perform corresponding result processing according to the quantitative index: re-generate early warning, re-generate alarm or forced braking ; If the instruction is executed successfully, the system will record the necessary data such as the accident state and time, and provide information for the analysis of the accident.

Beneficial effects of the present invention

Because the present invention utilizes RFID to carry out locomotive positioning and orientation, has adopted reliable wireless data transmission technology, has realized the real-time display of ground locomotive signal and planned task operation sheet on the locomotive, does not need the driver to watch the ground locomotive signal, through the monitor It can clearly understand the ground conditions and avoid the potential safety hazards of existing shunting locomotives that rely on the confirmation of ground locomotive signals, and once the driver makes a mistake, the system can realize automatic judgment and control through the expert system, ensuring the safety and accuracy of shunting operations and reliability.

Description of drawings

Fig. 1 is the composition block diagram of ground expert system structure of the present invention

Fig. 2 is a block diagram of vehicle-mounted expert system structure of the present invention

Figure 3 is the flow chart of the ground expert system

Detailed ways

The above-mentioned drawings show the embodiments of the present invention. With reference to the drawings, the operation process of the structure of the safety monitoring expert system for the shunting operation of the shunting locomotive will be further described.

The ground expert system regularly receives the status of the ground signal machine, track circuit occupancy, shunting progress, road opening status and shunting operation plan, and then send all the received information to the ground expert system. The ground expert system first performs data verification (CRC), and then compares the shunting route in the shunting plan with the actual open one. The shunting route is compared and verified, based on the shunting route of the signal receiving single-chip microcomputer, the amount of change in the extracted information is assigned to the ground signal status of the station, and at the same time, the ground status information of the station is regularly checked once. Verify and modify the state error caused by accident. The communication between the single-chip microcomputer and the expert system is carried out regularly. Once no information is sent within the specified time interval, the expert system will query the equipment to determine the working status of the single-chip microcomputer. uninterrupted. The above functions are completed by the signal single-chip communication module, the planning single-chip communication module, the data verification module, the shunting route analysis module, and the signal machine state analysis module. The expert system has completed the information collection of the ground condition of the station and the collection of the shunting operation plan. At the same time, each vehicle-mounted host will send the collected RFID information to the ground expert system through the vehicle-mounted wireless data transmission station in real time. The ground expert system will extract the key information of the RFID through data verification (CRC), and perform locomotive positioning and locomotive speed estimation. The above functions are completed by the locomotive positioning module and the locomotive running speed estimation module. In this way, sufficient conditions for the conflict analysis of all shunting locomotives are obtained. The locomotive conflict analysis is carried out through the locomotive conflict analysis module. When the possibility of conflict is analyzed, an alarm is immediately issued to the locomotive that may conflict, and at the same time, an alarm is sent to the dispatcher on duty, and the control command The monitoring and analysis module monitors the response of the conflicting locomotive, and sends a mandatory braking command to the conflicting locomotive when necessary. After receiving the command, the on-board system realizes the mandatory braking of the locomotive through the interface of the train operation monitoring and recording device and the train operation monitoring and recording device to prevent the locomotive from colliding. occur. At the same time, the necessary data such as the status of the accident and the time of the occurrence are recorded to provide information for the analysis of the accident. The communication content of the wireless data transmission station is determined according to the specific situation, and there may be no communication content for a long period of time, so there may be no communication content with the ground expert system for a long time. Therefore, it is required to If there is no communication content, then send a normal working order to the ground expert system to maintain the regular communication between the vehicle-mounted data transmission station and the ground data transmission station. , then the ground expert system will query the faults of the digital transmission stations, and when it is determined that there is a problem with a certain digital transmission station, it will immediately carry out fault alarm processing.

Locomotive conflict is a kind of fault between different shunting locomotives. When analyzing the hidden trouble, it is necessary to know the position information, speed information and ground status of all shunting locomotives. The amount of transmission, the safety monitoring of this function is arranged in the ground expert system to solve. In this way, repeated analysis work such as locomotive positioning analysis and locomotive speed analysis and positioning information communication between on-board data transmission stations are avoided in each vehicle-mounted host computer, thereby improving the system's work efficiency and system security. The other functions are the safety monitoring of a single locomotive, so they are completed independently by the on-board system. The on-board expert system mainly realizes the safety protection of several faults such as locomotive rushing, bumping and rolling derailer, bumping into soil block, and squeezed switch. The workflow of the vehicle expert system structure is as follows:

The structure of the on-board expert system receives the signal machine status, track circuit status and shunting operation plan of the shunting locomotive extracted by the ground expert system through the on-board data transmission station. After the data check (CRC), the corresponding data is changed to maintain the real-time performance of the vehicle system data. At the same time, the shunting locomotive reads the passed RFID information through the RFID reader, and the on-board expert system determines the actual position of the shunting locomotive through the read RFID information, and at the same time estimates the running speed of the locomotive. The above functions pass through the wireless communication module and the data verification module. , shunting route analysis module, signal machine state analysis module, locomotive positioning module, and locomotive running speed estimation module are realized by several modules. The above-mentioned information acquired by the vehicle-mounted expert system is real-time information. Based on the above information, the vehicle-mounted expert system realizes the locomotive Analysis of safety hazards of several faults such as rushing, bumping derailer, soil bumping, and squeezed turnout. Once a hidden fault is found, early warning, alarm, and emergency braking instructions are generated in sequence according to the severity indicators of the plot. Early warning and alarm include sound, The light prompts and requires the locomotive crew to respond at the first time to eliminate the alarm, otherwise the system will generate a forced braking command, and the locomotive will be forced to brake through the train operation monitoring and recording device. The execution of the control command is tracked and detected by the control command monitoring and analysis module. When the system early warning, alarm or emergency braking occurs, the necessary data such as the state of the accident and the time of occurrence are recorded as the data for accident analysis. When the shunting locomotive has an emergency brake, the driver cannot continue to operate, and needs to perform an unlocking operation, and then the system can resume normal operation. After the on-board expert system monitors a fault, it needs to send early warning, alarm, emergency braking execution results and corresponding execution basis to the ground expert system through the wireless data transmission station. Data statistics are completed in the ground expert system.

The model specifications of the hardware used in the implementation are as follows:

Ground monitoring host M50 8189 55C computer

Ground monitoring server X260-8865-1SC (two sets)

Array Model X260-8865-1SC

Signal receiving microcontroller JDS-XHJS

Plan to receive MCU JDS-JHJS

Digital Radio MDS4710

Vehicle monitoring host IPC-610P industrial computer

Train operation monitoring and recording device interface JDS-JK

Train operation monitoring and recording device LJK-2000

RFID M201TI

RFID reader FTRD-2011

Claims (2)

1. the structure of switching locomotive operation safety monitoring expert system, it is characterized by by ground expert system structure and vehicle-mounted expert system structure two parts and form, on the monitoring host computer of control center the ground expert system structure is installed AT STATION, vehicle-mounted expert system structure is installed on shunting locomotive, realize bidirectional data transfers by data radio station between the two, the ground expert system structure comprises: signal microcontroller communication module, plan microcontroller communication module, wireless communication module, the data check module, signal single-chip machine information analysis module, plan single-chip machine information analysis module, the wireless messages analysis module, the shunting route analysis module, the signal state analyzing module, the locomotive positioning module, the locomotive running speed estimation block, locomotive conflict analysis module, control command monitoring analysis module, vehicle-mounted expert system structure comprises: wireless communication module, the data check module, the shunting route analysis module, the signal state analyzing module, the locomotive positioning module, the locomotive running speed estimation block, the locomotive analysis module that advances rashly, locomotive bumps and rolls the derailer analysis module, locomotive hits soil retaining analysis module, squeeze the track switch analysis module, control command monitoring analysis module, in the expert system structure of ground, plan microcontroller communication module, signal microcontroller communication module is connected with the data check module respectively with wireless communication module, the data check module more respectively with plan single-chip machine information analysis module, signal single-chip machine information analysis module is connected with the wireless messages analysis module, be connected with the shunting route analysis module with the signal state analyzing module respectively again after planning the single-chip machine information analysis module and signal single-chip machine information analysis module being connected, the wireless messages analysis module successively with the locomotive positioning module, the locomotive running speed estimation block connects, the signal state analyzing module, after shunting route analysis module and locomotive running speed estimation block three are connected to each other again successively with locomotive conflict analysis module, control command monitoring analysis module connects, in vehicle-mounted expert system structure, the locomotive positioning module is connected with the locomotive running speed estimation block, wireless communication module be connected with the signal state analyzing module with the shunting route analysis module respectively again after the data check module is connected, the locomotive running speed estimation block, the shunting route analysis module with after signal state analyzing module three is connected again respectively with crowded track switch analysis module, locomotive hits soil retaining analysis module, locomotive bumps and rolls derailer analysis module and the locomotive analysis module that advances rashly and be connected, and squeezes the track switch analysis module, locomotive hits soil retaining analysis module, locomotive bumps and rolls the derailer analysis module and advance rashly with locomotive and be connected with control command monitoring analysis module after analysis module is connected again.

2. the structure of switching locomotive operation safety monitoring expert system according to claim 1 is characterized by hardware supported and comprises: ground monitoring main frame, ground monitoring server, signal receive micro controller system, plan and receive micro controller system, ground data radio station, vehicle-mounted monitoring main frame, vehicle-mounted data radio station, train operation monitoring and recording device, RFID reader and bury RFID below ballast aggregate.

Images