Intelligent coupler lock device for rail transit and implementation method of intelligent coupler lock device

Abstract

The invention relates to an intelligent coupler lock device for rail transit and an implementation method of the intelligent coupler lock device. The coupler lock device comprises a coupler lock device mechanical locking body, a coupler lock pressure sensor, a coupler lock gap sensor, a locking processor, a communication module and a turnout locking state terminal. The coupler lock pressure sensor and the coupler lock gap sensor are respectively connected with the coupler lock mechanical locking body and are respectively used for safely detecting the pressure and the gap of the coupler lock in a locking state; the locking processor is connected with the coupler lock pressure sensor and the coupler lock gap sensor and used for receiving and processing signals of the coupler lock pressure sensor and the coupler lock gap sensor. And the turnout locking state terminal receives a processing result signal of the locking processor through the communication module. Compared with the prior art, the locking state of the turnout can be accurately detected and safely transmitted and is integrated into an existing rail transit signal system, so that the safety and the reliability of the whole system are improved.

Description

Technical Field

[0001] The invention relates to a rail transit signal system, and in particular to an intelligent hook lock for rail transit and an implementation method thereof. Background Art

[0002] In the current rail transit system, the turnout hook lock is a key device to ensure the safe operation of the train when the switch fails or the turnout loses its indication for some reason. Its use directly affects the safety and operational efficiency of the entire system. Traditional hook locks cannot meet the requirements of modern rail transit for high efficiency and high safety due to the shortcomings of relying entirely on manual operation to confirm the position and locking status of the turnout. In recent years, some manufacturers have proposed hook locks based on automatic control, but they only solve the problem of manual hook locking of the turnout, and fail to achieve the problem of the turnout locking status being continuously confirmed by the system in real time and interacting with the train automatic operation control system.

[0003] Traditional hook locks face many challenges in practical applications: first, since the position of the turnout cannot be determined after a signal system failure, the traditional mechanical locking device is difficult to be effectively locked and confirmed by the system in the first time, which will threaten the safety of train operation; second, relying on manual operation not only increases the difficulty of operation, but may also cause safety accidents due to human error confirmation; finally, most traditional hook locks use a fixed locking confirmation mechanism and cannot monitor the locking status of the turnout in real time. The speed of the train passing through the turnout is limited to a very low level, which is difficult to meet the needs of rail transit, especially urban rail transit with small intervals and high density operations.

[0004] After searching, Chinese patent publication number CN107685743A discloses an intelligent coupler system, which specifically discloses an automatic coupler body, a physical distance meter, a distance / vehicle speed analyzer, a drive operation converter, and a sensor. The coupler body contains multiple sensors. With the help of intelligent couplers, the operational transformation of rail transit combined and divided intermodal modes can be better realized, which is conducive to reducing the labor burden and mental stress of railway employees and improving the quality and efficiency of shunting. However, the existing patent uses intelligent means on couplers, and currently does not involve the intelligence of turnout hook locks. Therefore, how to solve the defects that the traditional hook lock position locking confirmation information is completely dependent on manual labor and cannot be connected to the signal system for train operation protection, the train operation efficiency is low, and the operation safety is completely guaranteed by manual labor has become a technical problem that needs to be solved. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide an intelligent hook lock for rail transit and its implementation method, which can ensure that the locking state of the turnout is accurately detected and safely transmitted, and integrated into the existing rail transit signal system, thereby improving the safety and reliability of the entire system.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] According to a first aspect of the present invention, there is provided an intelligent hook lock for rail transit, the hook lock comprising a hook lock mechanical locking body, a hook lock pressure sensor, a hook lock gap sensor, a locking processor, a communication module and a turnout locking state terminal;

[0008] The hook lock pressure sensor and the hook lock gap sensor are respectively connected to the hook lock mechanical locking body and are used to safely detect the pressure and gap of the hook lock in the locked state;

[0009] The locking processor is respectively connected to the hook lock pressure sensor and the hook lock gap sensor, and is used to receive and process signals from the hook lock pressure sensor and the hook lock gap sensor;

[0010] The switch locking state terminal receives the processing result signal of the locking processor through the communication module.

[0011] As a preferred technical solution, the hook lock mechanical locking body is used to realize the mechanical locking function of the turnout.

[0012] As a preferred technical solution, the mechanical locking body of the hook lock is made of a high-strength, fatigue-resistant metal material.

[0013] As a preferred technical solution, the hook lock pressure sensor is used to detect the adhesion force between the base rail and the point rail when the turnout is locked, and the hook lock gap sensor is used to detect the gap between the base rail and the point rail when the turnout is locked.

[0014] As a preferred technical solution, the hook lock pressure sensor and the hook lock gap sensor are both deployed with two or more heterogeneous independent sensing devices.

[0015] As a preferred technical solution, after receiving the signals from the hook lock pressure sensor and the hook lock clearance sensor, the locking processor performs a 2-out-of-2 comparison process respectively, thereby determining the locking state of the turnout.

[0016] As a preferred technical solution, after the locking processor determines that the turnout is successfully locked according to the hook lock pressure sensor and the hook lock gap sensor, it generates a corresponding locking signal and sends it to the turnout locking state terminal.

[0017] As a preferred technical solution, the communication module adopts a near-field or long-distance communication unit, which is used to transmit the analysis result of the locking processor to the switch locking state terminal through the communication network.

[0018] As a preferred technical solution, the switch locking state terminal converts the received signal into a format suitable for the existing signal system.

[0019] According to a second aspect of the present invention, there is provided a method for implementing the intelligent hook lock for rail transit, the method comprising the following steps:

[0020] Step S1, the hook lock mechanical locking body performs a mechanical locking operation on the turnout P;

[0021] Step S2, the hook lock pressure sensor detects the adhesion force generated by the hook lock;

[0022] Step S3, the hook lock gap sensor detects the gap between the point rail and the base rail;

[0023] Step S4, the locking processor calculates the locking state of the turnout P according to the data provided by the hook lock pressure sensor and the hook lock clearance sensor;

[0024] Step S5, the near-field or remote communication unit sends the locking state of the turnout P to the train or trackside equipment;

[0025] Step S6: The switch locking status terminal obtains the locking status of the switch P and provides it to the existing signal system.

[0026] As a preferred technical solution, the locking processor in step S4 encodes the calculation result using a security protocol.

[0027] As a preferred technical solution, the near-field or remote communication unit in step S5 sends the security code of the locking state of the turnout P to the train or trackside equipment via wireless communication.

[0028] As a preferred technical solution, in step S6, the integration of turnout status monitoring and the existing signal system is achieved.

[0029] As a preferred technical solution, the existing signal system continuously monitors the locking state of the turnout in real time. When the locking state of the turnout is lost, the existing signal system will perform safety protection again.

[0030] According to a third aspect of the present invention, there is provided an electronic device, comprising a memory and a processor, wherein a computer program is stored in the memory, and the method described above is implemented when the processor executes the program.

[0031] According to a fourth aspect of the present invention, there is provided a computer-readable storage medium having a computer program stored thereon, wherein the program implements the method described when executed by a processor.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] 1) The intelligent hook lock system of the present invention can ensure that the locking state of the turnout is accurately detected and safely transmitted, and can be integrated into the existing rail transit signal system, thereby improving the safety and reliability of the entire system;

[0034] 2) The present invention adopts the real-time detection technology of the lock state of the turnout, realizes the integration of the traditional hook lock device with the existing signal system of rail transit through wireless technology and safety protocol, and improves the safety of the turnout position confirmation when the turnout indicates a fault;

[0035] 3) The present invention adopts the turnout locking safety protection technology. In the case where the traditional signal system does not know the turnout status and needs to rely on manual operation to ensure driving safety, the intelligent hook lock in the present invention can automatically provide SIL4 level turnout locking status information to ensure the safe operation of the train in the ATP protection mode, thereby improving the safety level of train operation;

[0036] 4) The present invention is lightly coupled with the existing signal system. The present invention uses safe intelligent sensing and processing technology to ensure the security and real-time performance of locking information while achieving light coupling with the existing signal system to better adapt to signal systems of different standards and manufacturers, and has strong universality;

[0037] 5) The sensors of the present invention are respectively deployed with more than two heterogeneous independent sensing devices to ensure the safety of detection. At the same time, the locking processor adopts 2-out-of-2 comparison processing to further improve the safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the intelligent hook lock device of the present invention;

[0039] Figure 2 A flowchart of a method for implementing the present invention;

[0040] Figure 3 It is a schematic diagram of the control process of a specific embodiment of the present invention. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0042] Example 1

[0043] The present invention provides an intelligent hook lock for rail transit to solve the defects that the position locking confirmation information of the traditional hook lock is completely dependent on manual labor and cannot be connected to the signal system for train operation protection, the train operation efficiency is low and the operation safety is completely guaranteed by manual labor. The present invention adds an intelligent safety detection and processing device on the basis of the traditional mechanical hook lock, and realizes integration with the existing signal system, thereby ensuring the safe and high-speed operation of the train.

[0044] like Figure 1 As shown, the intelligent hook lock of the present invention includes a hook lock mechanical locking body BHL, a hook lock pressure sensor PHL, a hook lock gap sensor GHL, a locking processor PoL, a near field / remote communication unit RU and a turnout locking state terminal TPL, wherein: the hook lock mechanical locking body BHL is the core mechanical component of the system, responsible for realizing the mechanical locking function of the turnout; the hook lock pressure sensor PHL and the hook lock gap sensor GHL are respectively used to safely detect the pressure and gap of the hook lock in the locked state; the locking processor PoL receives signals from PHL and GHL, and performs analysis and processing to determine the locking state of the turnout; the near field / remote communication unit RU is responsible for transmitting the analysis results of the locking processor PoL to the remote monitoring system through the communication network; the turnout locking state terminal TPL receives the signal from RU, and converts it into a format suitable for the existing signal system, so as to be integrated into the existing railway signal system;

[0045] The specific structure of each component is as follows:

[0046] 1. Hook lock mechanical locking body BHL: This is the core mechanical component of the system, responsible for realizing the mechanical locking function of the turnout. It is made of high-strength and fatigue-resistant metal materials to ensure the safety and reliability of the turnout mechanism.

[0047] 2. Hook lock pressure sensor PHL and hook lock gap sensor GHL: These two sensors are used to detect the adhesion and gap between the base rail and the point rail when the turnout is locked. The pressure sensor PHL detects the adhesion between the base rail and the point rail when the turnout is locked, while the gap sensor GHL is used to detect the gap between the base rail and the point rail when the turnout is locked to ensure that there is no abnormal physical gap affecting the locking state of the turnout. Both types of sensors deploy more than two heterogeneous independent sensing devices to ensure the safety of detection.

[0048] 3. Locking processor PoL: This processor receives signals from PHL of interface ③ and GHL of interface ④, and performs 2-out-of-2 comparison processing respectively to safely determine the locking state of the turnout. The processor determines whether the locking is successful based on the sensor data, and generates a corresponding locking signal, which is transmitted to the communication unit RU through interface ⑤ after safety protocol coding and information security processing.

[0049] 4. Near field / remote communication unit RU: This unit is responsible for sending the analysis results of the locking processor through the communication network via interface ⑥.

[0050] 5. Turnout Locking Status Terminal TPL: This terminal receives the signal from the RU and converts it into a format suitable for the existing signal system so that it can be integrated into the existing railway signal system. This ensures the compatibility and seamless integration of the new system with the existing system.

[0051] Example 2

[0052] like Figure 2 As shown, the present invention also provides a method for implementing an intelligent hook lock for rail transit, which specifically includes:

[0053] Step 1: Mechanical locking of the hook lock: First, the hook lock mechanical locking body BHL performs a mechanical locking operation on the turnout P to ensure that the turnout is in the correct position.

[0054] Step 2: Close contact force detection: The hook lock pressure sensor PHL detects the close contact force generated by the hook lock to ensure that the contact force between the hook lock and the turnout is sufficient to ensure the stability and safety of the turnout.

[0055] Step 3: Gap detection: The hook lock gap sensor GHL detects the gap between the point rail and the stock rail to ensure that there is no physical obstacle to the switch and the gap is within a safe range.

[0056] Step 4: Status calculation and security coding: The locking processor PoL calculates the locking status of the turnout P based on the data provided by PHL and GHL, and encodes it using a security protocol, and then adds information security protection. This step is to ensure the security and integrity of the locking status data during transmission.

[0057] Step 5, status information transmission: The near field / remote communication unit RU sends the security code of the locking status of the turnout P to the train or trackside equipment such as the ATP unit through wireless communication to achieve remote transmission of status information.

[0058] Step 6: Status information acquisition and integration: The turnout locking status terminal TPL acquires the locking status of the turnout P and provides it to the existing signal system to achieve integration of the new system with the existing signal system and ensure coordinated operation of the entire rail transit system.

[0059] Through the above steps, the intelligent hook lock implementation method and device can ensure that the locking state of the turnout is accurately monitored, safely transmitted, and integrated into the existing rail transit signal system, thereby improving the safety and reliability of the entire system.

[0060] Example 3

[0061] like Figure 3 As shown, the following uses the traditional CBTC system as an example for illustration. The relevant principles and logic are also applicable to signal systems of other standards, which specifically include the following steps:

[0062] Step S1: Initial state

[0063] like Figure 3 As shown in the rail transit system, Figure 3 When a switch fails and the existing CBTC signal system cannot obtain the switch locking status information, the train that needs to pass the switch will use normal braking or emergency braking to stop at a position not less than the safety distance upstream of the switch, and the train on the switch or within the safety distance will stop due to emergency braking.

[0064] Step S2: Use the intelligent hook lock device to manually or automatically lock the turnout

[0065] The intelligent hook lock is used to lock the turnout manually or automatically. The hook lock mechanical locking body BHL performs mechanical locking operations to ensure that the turnout is in the correct position.

[0066] Step S3: Sensor data collection

[0067] The pressure sensor PHL detects the adhesion force generated by the base rail and the point rail on the locking side through two detection devices to ensure that the adhesion force data is obtained correctly.

[0068] The gap sensor GHL detects the gap between the point rail and the base rail through two sensors to ensure that the turnout close contact data is correctly obtained.

[0069] Step S4: Data processing and secure encoding

[0070] The locking processor PoL receives data from PHL and GHL, and calculates the close force and gap of the turnout by trial calculation of 2 out of 2. Only when all data meet the requirements can the locking status be given, and the status is encoded with a security protocol, and an information security protection check code is added to ensure the security and integrity of the data.

[0071] Step S5: Data transmission

[0072] The near-field / remote communication unit RU sends the safety protocol of the locked state of the turnout to the trackside TPL device via wireless communication.

[0073] Step S6: Status information acquisition and integration

[0074] The turnout locking status terminal TPL obtains the locking status of the turnout and provides it to the computer interlocking of the existing signal system, realizing the integration of the turnout status with the existing signal system.

[0075] Step S7: Computer interlocking operation

[0076] The computer interlocking system receives the switch locking status information from TPL, sends it to the zone controller ZC according to the processing method and safety logic of the existing signal system, and then sends it to the on-board controller CC via ZC to protect the safety of train operation.

[0077] Step S8: Real-time monitoring and maintenance

[0078] The system continuously monitors the locking status of the turnout in real time to ensure the safe operation of the rail transit system. When the turnout locking status is lost, the existing signal system will therefore perform safety protection again.

[0079] During the operation of the system, the corresponding monitoring system will also continuously monitor the status of each device in the system itself.

[0080] Through the above steps, the intelligent hook lock system can ensure that the locking status of the turnout is accurately detected, safely transmitted, and integrated into the existing rail transit signal system, thereby improving the safety and reliability of the entire system.

[0081] Example 4

[0082] The embodiment of the present invention also provides an electronic device including a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in a read-only memory (ROM) or computer program instructions loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for device operation can also be stored. The CPU, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0083] Multiple components in the device are connected to the I / O interface, including: input units, such as keyboards, mice, etc.; output units, such as various types of displays, speakers, etc.; storage units, such as disks, optical disks, etc.; and communication units, such as network cards, modems, wireless communication transceivers, etc. The communication unit allows the device to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunication networks.

[0084] The processing unit performs the various methods and processes described above, such as the method of the present invention. For example, in some embodiments, the method of the present invention can be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the CPU, one or more steps of the method of the present invention described above can be performed. Alternatively, in other embodiments, the CPU can be configured to perform the method of the present invention by any other appropriate means (e.g., by means of firmware).

[0085] The functions described above herein may be performed at least in part by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), and the like.

[0086] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0087] In the context of the present invention, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0088] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An intelligent hook lock for rail transit, characterized in that: The hook lock includes a hook lock mechanical locking body (BHL), a hook lock pressure sensor (PHL), a hook lock gap sensor (GHL), a locking processor (PoL), a communication module and a turnout locking state terminal (TPL); The hook lock pressure sensor (PHL) and the hook lock gap sensor (GHL) are respectively connected to the hook lock mechanical locking body (BHL) and are used to safely detect the pressure and gap of the hook lock in the locked state; The locking processor (PoL) is respectively connected to the hook lock pressure sensor (PHL) and the hook lock gap sensor (GHL), and is used to receive and process the signals of the hook lock pressure sensor (PHL) and the hook lock gap sensor (GHL); The switch locking state terminal (TPL) receives a processing result signal from a locking processor (PoL) through a communication module.

2. According to claim 1, the intelligent hook lock for rail transit is characterized in that: The hook lock mechanical locking body (BHL) is used to realize the mechanical locking function of the turnout.

3. The intelligent hook lock for rail transit according to claim 1 or 2, characterized in that: The hook lock mechanical locking body (BHL) is a component made of high-strength fatigue-resistant metal material.

4. The intelligent hook lock for rail transit according to claim 1, characterized in that: The hook lock pressure sensor (PHL) is used to detect the adhesion force between the stock rail and the point rail when the turnout is locked, and the hook lock gap sensor (GHL) is used to detect the gap between the stock rail and the point rail when the turnout is locked.

5. The intelligent hook lock for rail transit according to claim 1 or 4, characterized in that: The hook lock pressure sensor (PHL) and the hook lock gap sensor (GHL) are both deployed with more than two heterogeneous independent sensing devices.

6. The intelligent hook lock for rail transit according to claim 1, characterized in that: After receiving the signals from the hook lock pressure sensor (PHL) and the hook lock gap sensor (GHL), the locking processor (PoL) performs a 2-out-of-2 comparison process respectively, thereby determining the locking state of the turnout.

7. The intelligent hook lock for rail transit according to claim 1 or 6, characterized in that: After the locking processor (PoL) determines that the turnout is successfully locked according to the hook lock pressure sensor (PHL) and the hook lock gap sensor (GHL), it generates a corresponding locking signal and sends it to the turnout locking state terminal (TPL).

8. The intelligent hook lock for rail transit according to claim 1, characterized in that: The communication module adopts a near-field or long-distance communication unit (RU), which is used to transmit the analysis result of the locking processor (PoL) to the switch locking state terminal (TPL) through the communication network.

9. The intelligent hook lock for rail transit according to claim 1, characterized in that: The switch locking state terminal (TPL) converts the received signal into a format suitable for the existing signal system.

10. A method for implementing the intelligent hook lock for rail transit according to claim 1, characterized in that: The implementation method includes the following steps: Step S1, the hook lock mechanical locking body (BHL) performs a mechanical locking operation on the turnout P; Step S2, the hook lock pressure sensor (PHL) detects the adhesion force generated by the hook lock; Step S3, the hook lock gap sensor (GHL) detects the gap between the point rail and the stock rail; Step S4, the locking processor (PoL) calculates the locking state of the turnout P according to the data provided by the hook lock pressure sensor (PHL) and the hook lock gap sensor (GHL); Step S5, the near-field or remote communication unit (RU) sends the locking status of the turnout P to the train or trackside equipment; Step S6: The switch locking state terminal (TPL) obtains the locking state of the switch P and provides it to the existing signal system.

11. The implementation method according to claim 10, characterized in that: The locking processor (PoL) in step S4 encodes the calculation result using a security protocol.

12. The implementation method according to claim 11, characterized in that: The near-field or long-range communication unit (RU) in step S5 sends the safety code of the locking state of the turnout P to the train or trackside equipment via wireless communication.

13. The implementation method according to claim 11, characterized in that: In step S6, the integration of turnout status monitoring and the existing signal system is achieved.

14. The implementation method according to claim 11, characterized in that: The existing signal system continuously monitors the locking state of the turnout in real time. When the locking state of the turnout is lost, the existing signal system will perform safety protection again.

15. An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, wherein: When the processor executes the program, the method according to any one of claims 10 to 14 is implemented.

16. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 10 to 14 is implemented.

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