Station equipment state checking method and device based on CTC system

Abstract

The invention provides a station equipment state checking method and device based on a CTC system, and the method comprises the steps: a station equipment state generator generates first station equipment state data in real time, and transmits the first station equipment state data to a central application server for storage; the central application server transmits the first station equipment state data to a successfully registered foreground terminal in real time, and the foreground terminal analyzes the first station equipment state data based on an internal protocol of a CTC system to generate station equipment state paraphrases; when station construction is started, the foreground terminal dumps stored first station equipment state data into historical snapshot data; when the station construction is finished, the central application server transmits the received second station equipment state data generated by the station equipment state generator to the foreground terminal; and station equipment state paraphrases in the second station equipment state data and the historical snapshot data are compared, station equipment state differentiation data are generated by the foreground terminal, and station equipment state checking is completed.

Description

Technical Field

[0001] The invention belongs to the field of rail transit, and in particular relates to a station equipment status verification method and device based on a CTC system. Background Art

[0002] In the Fzk centralized traffic control system (Fzk-CTC), stations and dispatching centers are relatively independent and can be flexibly combined. The two are connected through a highly reliable dual-loop network structure. The Fzk centralized traffic control system can accept unified control commands, and can also automatically execute route handling commands according to preset rules and plan information. Manual intervention is also one of the control methods. The station subsystem self-checks and constrains according to the station detailed rules and actual driving conditions. The dispatching center remotely checks the information of each station and controls the operation of station equipment. The station can work in remote control mode or control itself after obtaining authorization. Even if the connection with the dispatching center is lost, the station can still control the route according to the stored plan information.

[0003] However, with the upgrading of railway transportation, new challenges such as train running speed, density, and complex operations have put forward higher requirements for safety. Relying solely on operators can no longer meet safety needs. New technologies and equipment need to be introduced to monitor the entire departure process, reduce the workload of train operators, and improve transportation efficiency.

[0004] At present, in the centralized dispatching section in China, after the construction of the station controlled by the dispatching center is completed, the dispatching personnel are required to manually check the status changes of the station equipment. This method has the following shortcomings:

[0005] 1. Generally, dispatchers check manually and need to record the equipment status before construction one by one in the workbook. This working method brings a heavy task burden to the dispatchers.

[0006] 2. There are high requirements for the accuracy of recorded information, and there is a possibility of omissions and errors, which brings corresponding potential risks to the use of the centralized scheduling system. Summary of the invention

[0007] The purpose of the present invention is to overcome the above-mentioned shortcomings and to provide a station equipment status verification method and device based on the CTC system, so as to achieve accurate verification of the equipment status after station construction, thereby ensuring the normal operation of the centralized dispatching system.

[0008] To achieve the above-mentioned purpose, the present invention provides a station equipment status verification method based on a CTC system, which comprises: based on the internal protocol and external interface information of the CTC system, after the station equipment status generator is initialized, the station equipment status generator generates the first station equipment status data in real time and transmits it to the central application server for storage; the front-end terminal registers with the central application server and applies for station equipment status display; the central application server transmits the first station equipment status data to the successfully registered front-end terminal in real time, and the front-end terminal parses the first station equipment status data based on the internal protocol of the CTC system, generates a station equipment status interpretation, and stores it in the database of the front-end terminal; when the station construction starts, the central application server transmits the station construction start status to the front-end terminal, and the front-end terminal dumps the stored first station equipment status data as historical snapshot data; when the station construction ends, the central application server transmits the station construction end status to the front-end terminal, and transmits the received second station equipment status data generated by the station equipment status generator to the front-end terminal; by comparing the station equipment status interpretation in the second station equipment status data and the historical snapshot data, the front-end terminal generates station equipment status differentiation data, and completes the station equipment status verification.

[0009] Optionally, the station equipment status data includes: station number, station equipment type number, station equipment number, station equipment status value and station equipment supplementary status information; after each station equipment is initialized and / or operated, the station equipment status data is generated in real time by the station equipment status generator.

[0010] Optionally, the station equipment status generator generates the first station equipment status data in real time, specifically including: step S11, the station equipment status generator generates event information according to external interface information, CTC system internal logic and / or manual operation; S12, after the station equipment status generator collects the event information, it generates the first station equipment status data corresponding to the event information.

[0011] Optionally, the station equipment status value is a 32-bit binary value, and each bit of the binary value corresponds to a station equipment status.

[0012] Optionally, the internal protocol of the CTC system includes a network communication protocol and a station equipment status protocol; the network communication protocol is used to define communication details and security information within the CTC system; the station equipment status protocol is used to define the encoding and decoding format of the binary numerical value of the station equipment status value.

[0013] Optionally, a system configuration file is prepared based on the station equipment status protocol, and the system configuration file is used to translate the station equipment status value consisting of a binary value into the station equipment status interpretation.

[0014] Optionally, the system configuration file includes an identifier, binary bits BITS, a bit value STATUS_id and a bit value interpretation desc; wherein the identifier SIGNAL is used to represent the station equipment name; the binary bits BITS are calculated by the starting bit BITS_pos and the bit value placeholder width, and are used to represent the attributes of the station equipment; the bit value STATUS_id and the bit value interpretation desc are manually defined, and the bit value STATUS_id corresponds to the bit value interpretation desc one by one.

[0015] Optionally, the station equipment is a general term for all information in the station map, including: tracks, signals, switches, indicator lights, train number windows, and approach windows.

[0016] Optionally, the station number is a unique number assigned by the CTC system when the station is established; the station equipment type number is a unique number assigned according to the functional attributes of the station equipment; the station equipment number is a unique number of the station equipment in its category after being classified; a station equipment can be uniquely identified by the station number, station equipment type number and station equipment number.

[0017] Optionally, the station equipment supplementary status information is auxiliary status information added to the station equipment when the number of station equipment status values ​​exceeds the number of binary values ​​formed by 32 bits; the station equipment supplementary status information is stored in the CTC system internal protocol.

[0018] Optionally, the station construction start status and the station construction end status are generated by the station equipment status generator and transmitted to the central application server for storage via the central communication server.

[0019] Optionally, when station construction begins, the control of the station equipment is switched from the dispatching center to the station; when station construction ends, the control of the station equipment is switched from the station to the dispatching center; wherein the switching state of the control is generated by the station equipment state generator.

[0020] Optionally, the method also includes: the front-end terminal converts the differentiated data into a graphic table, the graphic table includes historical snapshot data of all times, and the header of the graphic table includes at least: station number, station equipment type number, station equipment number, historical station equipment status interpretation and current station equipment status interpretation.

[0021] Optionally, when selecting the historical snapshot data of one of the station equipment for comparison, multiple station numbers can be selected at one time, and only one moment can be selected at a time within a station number for comparison of the station equipment status.

[0022] The present invention also provides a station equipment status verification device based on the CTC system, which includes: a station equipment status generator, which is connected to each station equipment and is used to generate station equipment status data in real time; a central communication server, which is connected to the station equipment status generator and is used to transmit data; a central application server, which is connected to the station equipment status generator through the central communication server and is used to receive, store and send the station equipment status data in real time; a front-end terminal, which is connected to the central application server through the central communication server and is used to send a station equipment status application and receive and display the station equipment status data sent from the central application server; the front-end terminal parses the station equipment status data based on the internal protocol of the CTC system, generates a station equipment status interpretation, generates station equipment status differentiation data by comparing the station equipment status interpretation at the beginning of station construction and at the end of station construction, and completes the station equipment status verification.

[0023] Optionally, the central application server is a dual-machine hot standby structure, including a host central application server and a standby central server, the host central application server and the standby central server run simultaneously, and when the host central application server stores station equipment status data, the standby central server synchronizes the station equipment status data from the host central application server.

[0024] Optionally, the front-end terminal includes a graphic window, and the front-end terminal converts the differential data into a graphic table and displays it through the graphic window.

[0025] Compared with the prior art, the station equipment status verification method and device based on the CTC system provided by the present invention have the following beneficial effects: by setting the station equipment status value to a 32-bit binary value, any type of station equipment type and station equipment status defined in the CTC internal protocol can be flexibly supported for expansion of the CTC system internal protocol, and by setting the system configuration file, the station equipment status value and supplementary status information can be semantically interpreted, thereby enhancing the readability of the status change.

[0026] Secondly, the station equipment status verification device based on the CTC system is equipped with a central application server with real-time storage function and a front-end terminal capable of transferring historical snapshot data, which can ensure that the stations and station equipment status selected by the users can be correctly stored, while also flexibly supporting the expansion of the internal protocol of the CTC system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a station equipment status verification device based on a CTC system of the present invention;

[0028] Figure 2 It is a flow chart of the station equipment status verification method based on the CTC system of the present invention;

[0029] Figure 3 An example of interpretation in a binary bit of a station equipment status value in which the station equipment is a signal machine in one embodiment of the present invention;

[0030] Figure 4 A display interface for station equipment status data in which the station equipment in one embodiment of the present invention is a turnout;

[0031] Figure 5-Figure 6 An example of interpretation of a signal device status value in binary format by a system configuration file in one embodiment of the present invention;

[0032] Figure 7-Figure 8 The figure is a display interface of a graphic table in a graphic window in one embodiment of the present invention. DETAILED DESCRIPTION

[0033] The technical solutions, structural features, achieved objectives and effects of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] It should be noted that the drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the embodiments of the present invention, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention.

[0035] It should be noted that, in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only the elements explicitly listed, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] After the construction of the station controlled by the dispatching center is completed, the dispatching personnel are required to check the status changes of the station equipment. Currently, this is done manually, but there is a possibility of omissions and errors, which brings certain potential risks to the use of the centralized dispatching system (CTC system).

[0037] In view of the above-mentioned defects, the present invention provides a station equipment status verification device based on the CTC system, such as Figure 1 As shown, it includes: a station equipment status generator 101, which is connected to each station equipment (not shown in the figure) and is used to generate station equipment status data in real time; a central communication server 102, which is connected to the station equipment status generator 101 and is used to transmit data; a central application server 103, which is connected to the station equipment status generator 101 through the central communication server 102 and is used to receive, store and send the station equipment status data in real time; a front desk terminal 104, which is connected to the central application server 103 through the central communication server 102 and is used to send a station equipment status application and receive and display the station equipment status data sent from the central application server; the front desk terminal 104 parses the station equipment status data based on the internal protocol of the CTC system, generates a station equipment status interpretation, generates station equipment status differentiation data by comparing the station equipment status interpretation at the beginning of station construction and at the end of station construction, and completes the station equipment status verification.

[0038] To improve the stable storage of station equipment status data to meet the requirements of high security level, such as Figure 1 As shown, the central application server 103 is a dual-machine hot standby structure, including a host central application server 103A and a standby central server 103B. The host central application server 103A and the standby central server 103B run simultaneously. When the host central application server 103A stores station equipment status data, the standby central server 103B will automatically synchronize the station equipment status data from the host central application server 103A.

[0039] Further, if Figure 1 As shown, the front-end terminal 104 includes a graphic window 141 , and the front-end terminal 104 converts the differential data into a graphic table and displays it through the graphic window 141 , so that the user can check the status change of the station equipment after the station construction starts.

[0040] like Figure 2 As shown, the present invention also provides a station equipment status verification method based on a CTC system, which is implemented using the above-mentioned station equipment status verification device based on a CTC system, and includes the following steps:

[0041] S1. Based on the internal protocol and external interface information of the CTC system, after the station equipment status generator 101 is initialized, the station equipment status generator 101 generates the first station equipment status data in real time and transmits it to the central application server 103 for storage;

[0042] S2, the front-end terminal 104 registers with the central application server 103 and applies for station equipment status display; when the front-end terminal 104 is successfully registered, the front-end terminal 104 can effectively exchange data with the central application server 103, thereby realizing real-time display and monitoring of the station equipment status;

[0043] S3, the central application server 103 transmits the first station equipment status data to the successfully registered front-end terminal 104 in real time, and the front-end terminal 104 parses the first station equipment status data based on the internal protocol of the CTC system, generates a station equipment status interpretation, and stores it in the database of the front-end terminal;

[0044] S4. When the station construction starts, the central application server 103 transmits the station construction start status to the front-end terminal 104, and the front-end terminal 104 dumps the stored first station equipment status data as historical snapshot data;

[0045] S5. When the station construction is completed, the central application server 103 transmits the station construction completion status to the front-end terminal 104, and transmits the second station equipment status data generated by the received station equipment status generator 101 to the front-end terminal 104; by comparing the second station equipment status data with the station equipment status interpretation in the historical snapshot data, the front-end terminal 104 generates station equipment status differentiation data to complete the station equipment status verification.

[0046] Among them, when the station construction starts as described in step S4, the control of the station equipment is switched from the dispatching center to the station; when the station construction ends as described in step S5, the control of the station equipment is switched from the station to the dispatching center; the station construction start status and station construction end status are both generated by the station equipment status generator 101, and transmitted to the central application server 103 for storage through the central communication server 102.

[0047] It should be noted that the station equipment status data, station construction start status and station construction end status generated in real time by the station equipment status generator 101 are first transmitted to the central application server 103 for storage through the central communication server 102, and then transmitted by the central application server 103 to the front-end terminal 104 through the central communication server 102 to alleviate the communication data traffic pressure of the front-end terminal 104.

[0048] Among them, the CTC system internal protocol includes a network communication protocol and a station equipment status protocol; the network communication protocol is used to define the communication details and security information within the CTC system to ensure normal communication between various devices; the station equipment status protocol is used to define the encoding and decoding format of the binary numerical value of the station equipment status value to support any type of station equipment type and station equipment status defined in the CTC internal protocol, and can flexibly support the expansion of the CTC system internal protocol.

[0049] The station equipment is a general term for all information in the station yard map, including but not limited to: tracks, signals, switches, indicator lights, train number windows, approach windows, etc.

[0050] Among them, the station equipment status generator 101 described in step S1 generates the first station equipment status data in real time specifically including: step S11, the station equipment status generator 101 generates event information according to external interface information, CTC system internal logic and / or manual operation; S12, after the station equipment status generator 101 collects the event information, it generates the first station equipment status data corresponding to the event information. Specifically, in one embodiment, the external interface information is the station field representation information of the interlocking system interface, the internal logic of the CTC system includes the logic of converting the external station field representation information into the internal protocol of the CTC system and forwarding the station equipment status data to the central application server; the manual operation includes manual operation of station equipment such as turnouts and signal machines, generating a train phase plan at the station train plan terminal and sending it to the station equipment status generator 101 to generate a route sequence, and other operations.

[0051] Furthermore, the station equipment status data includes: station number, station equipment type number, station equipment number, station equipment status value and station equipment supplementary status information; after each of the station equipment is initialized and / or operated, the station equipment status data is generated in real time by the station equipment status generator. Specifically, the station equipment status value is a 32-bit binary value, and each bit of the binary value corresponds to a station equipment state, which is used to indicate the attributes of the station equipment at this time, such as the display or hiding of the station equipment, and the color or text information displayed when displayed. The station equipment status is carefully defined through specific interpretations in the internal protocol of the CTC system. In some embodiments, the station equipment status value consists of 4 bytes, and each byte includes 8 bits. Figure 3 As shown, Figure 3 The figure shows an example of the interpretation of each bit in the binary bit of the station equipment status value of a station equipment being a signal light, wherein bits 0-3 are used to represent the color information of the signal light, and bits 4-7 represent the equipment status of the signal light.

[0052] Among them, the station number is a unique number assigned by the CTC system when the station is established; the station equipment type number is a unique number determined according to the functional attributes of the station equipment; the station equipment number is a unique number of the station equipment in the category to which it belongs after being classified; a station equipment can be uniquely identified by the station number, station equipment type number and station equipment number. Furthermore, the station equipment supplementary status information is auxiliary status information added to the station equipment when the number of station equipment status values ​​exceeds the number of binary values ​​formed by 32 bits; the station equipment supplementary status information is also defined in the internal protocol of the CTC system. For example, when a temporary speed limit is set for the railway track due to a dangerous situation, the information of the temporary speed limit can be reflected in the station equipment supplementary status information.

[0053] In a specific embodiment, if Figure 4 As shown, Figure 4 It is a display interface for the station equipment status data of a station equipment which is a switch. In this embodiment, the station number is 1810, the station type number is 12Switch, the station equipment number is 3, the station equipment status value is 6.112.0.21 (i.e., 4 bytes are displayed), and the station equipment supplementary status information is 0X4.

[0054] Since the station equipment status value in the present invention is a 32-bit (BIT) binary value, the bits (BIT) at different positions in the value have specific interpretations. In order to enhance readability and facilitate reading by operators, based on the station equipment status protocol, the present invention also produces a system configuration file, which is used to translate the station equipment status value composed of binary values ​​into a specific interpretation of the station equipment status. Through the specific interpretation of the station equipment status, the changes in the station equipment status can be more intuitively displayed.

[0055] Among them, the system configuration file includes an identifier, binary bits BITS, a bit value STATUS_id and a bit value interpretation desc; wherein the identifier SIGNAL is used to represent the station equipment name; the binary bits BITS are calculated by the starting bit value BITS_pos and the bit value placeholder number width, and are used to represent the attributes of the station equipment; the bit value STATUS_id and the bit value interpretation desc are manually defined, and the bit value STATUS_id corresponds to the bit value interpretation desc one by one.

[0056] In one embodiment, if Figure 5 As shown, Figure 5 An example of interpretation of the signal device status value in binary format for the system configuration file, where <signal>The identifier represents a signal. <bits>The corresponding interpretations of different bit positions representing the binary device status value are as follows: <BITS pos="0" width="4">, which indicates that the starting bit value position is 0 and the number of bit value placeholders is 4. That is, bits 0-3 represent the color information of the signal machine. <STATUS id="1" desc="Green" / > means that if the value of bits 0-3 of the binary device status value is 1, it is interpreted as the signal machine being green; <STATUS id="2" desc="White" / > means that if the value of bits 0-3 of the binary device status value is 2, it is interpreted as the signal machine being white, and so on, without further elaboration.

[0057] In another embodiment, as Figure 6 shown Figure 6 is another example of the interpretation of the signal machine device status value in binary format in the system configuration file. <BITS pos="4" width="4">, which indicates that the starting bit value position is 4 and the number of bit value placeholders is 4. Combining Figure 3 with the example in it, that is, bits 4-7 represent the device status of the signal machine. <STATUS id="1" desc="Train signal open" / > means that if the value of bits 4-7 of the binary device status value is 1, it is interpreted as the device status of the signal machine being in the train signal open state; <STATUS id="2" desc="Shunting signal open" / >, which means that if the value of bits 4-7 of the binary device status value is 2, it is interpreted as the device status of the signal machine being in the shunting signal open state, and so on, without further elaboration.

[0058] Among them, in step S4, when the station construction starts, the front-end terminal 104 dumps the stored first station device status data into historical snapshot data, and the historical snapshot data is also in the form of a file saved in binary values, and this historical snapshot data contains all the states of the station devices at the recording moment. When the station construction ends, the control authority of the station devices is returned from the station's own control to the dispatching center, that is, the control mode of the station switches back to the dispatching center operation mode. At this time, the staff of the dispatching center need to carefully check what changes have occurred to all station devices during the construction period. Based on the front-end terminal 104, the front-end terminal 104 can convert the differential data into a graphical table, and the graphical table includes the historical snapshot data of all times of the station devices and is displayed through the graphical window 141. In one embodiment, the display interface of the graphical table in the graphical window 141 is as Figure 7 As shown in the figure, the left side shows the historical status snapshot data saved by each station in chronological order, and the maximum number of historical snapshot data saved by each station can be set according to needs; the right side is the comparison result display box. When selecting the historical snapshot data of one of the station equipment for comparison, multiple station numbers can be selected at a time. Only one moment can be selected at a time in a station number for station equipment status comparison. The selected historical status will be displayed with "√", such as Figure 8 shown.

[0059] Among them, the different stations are distinguished by different background colors in the graphic table. If the second station equipment status data of a station equipment is different from the status in the historical snapshot data, it is marked with different colors in the graphic table so that the staff can quickly identify it.

[0060] In summary, the present invention provides a station equipment status verification method based on the CTC system. By setting the station equipment status value to a 32-bit binary value, any type of station equipment type and station equipment status defined in the CTC internal protocol can be flexibly supported for expansion of the CTC system internal protocol. At the same time, by setting the system configuration file, the station equipment status value and supplementary status information can be semantically interpreted to enhance the readability of the status change.

[0061] Secondly, the station equipment status verification device based on the CTC system is equipped with a central application server with real-time storage function and a front-end terminal capable of transferring historical snapshot data, which can ensure that the stations and station equipment status selected by the users can be correctly stored, while also flexibly supporting the expansion of the internal protocol of the CTC system.

[0062] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.< / bits> < / signal>

Claims

1. A station equipment status verification method based on a CTC system, characterized in that: include: Based on the internal protocol and external interface information of the CTC system, after the station equipment status generator is initialized, the station equipment status generator generates the first station equipment status data in real time and transmits it to the central application server for storage; The front-end terminal registers with the central application server and applies for station equipment status display; The central application server transmits the first station equipment status data to the successfully registered front-end terminal in real time, and the front-end terminal parses the first station equipment status data based on the internal protocol of the CTC system, generates a station equipment status interpretation, and stores it in the database of the front-end terminal; When the station construction starts, the central application server transmits the station construction start status to the front-end terminal, and the front-end terminal dumps the stored first station equipment status data as historical snapshot data; When the station construction is completed, the central application server transmits the station construction completion status to the front desk terminal, and transmits the second station equipment status data generated by the station equipment status generator to the front desk terminal; By comparing the second station equipment status data with the station equipment status interpretation in the historical snapshot data, the front-end terminal generates differentiated station equipment status data to complete the station equipment status verification.

2. The method according to claim 1, characterized in that The station equipment status data includes: station number, station equipment type number, station equipment number, station equipment status value and station equipment supplementary status information; after each station equipment is initialized and / or operated, the station equipment status data is generated in real time by the station equipment status generator.

3. The method according to claim 1, characterized in that The station equipment status generator generates the first station equipment status data in real time, specifically including: step S11, the station equipment status generator generates event information according to external interface information, CTC system internal logic and / or manual operation; S12, after the station equipment status generator collects the event information, it generates the first station equipment status data corresponding to the event information.

4. The method according to claim 2, characterized in that The station equipment status value is a 32-bit binary value, and each bit of the binary value corresponds to a station equipment status.

5. The method according to claim 4, characterized in that The internal protocol of the CTC system includes a network communication protocol and a station equipment status protocol; the network communication protocol is used to define the communication details and security information within the CTC system; the station equipment status protocol is used to define the encoding and decoding format of the binary numerical value of the station equipment status value.

6. The method according to claim 5, characterized in that A system configuration file is prepared based on the station equipment status protocol, and the system configuration file is used to translate the station equipment status value composed of binary values ​​into the station equipment status interpretation.

7. The method according to claim 6, characterized in that The system configuration file includes an identifier, binary bits BITS, a bit value STATUS_id and a bit value interpretation desc; wherein the identifier SIGNAL is used to represent the station equipment name; the binary bits BITS are calculated by the starting bit BITS_pos and the bit value placeholder width, and are used to represent the attributes of the station equipment; the bit value STATUS_id and the bit value interpretation desc are manually defined, and the bit value STATUS_id corresponds to the bit value interpretation desc one by one.

8. The method according to claim 1, characterized in that The station equipment is a general term for all the information in the station map, including: tracks, signals, switches, indicator lights, train number windows, and approach windows.

9. The method according to claim 2, characterized in that The station number is a unique number assigned by the CTC system when the station is established; the station equipment type number is a unique number assigned based on the functional attributes of the station equipment; the station equipment number is a unique number of the station equipment in its category after being classified; a station equipment can be uniquely identified by the station number, station equipment type number and station equipment number.

10. The method according to claim 4, characterized in that The station equipment supplementary status information is auxiliary status information added to the station equipment when the number of station equipment status values ​​exceeds the number of binary values ​​formed by 32 bits; the station equipment supplementary status information is stored in the CTC system internal protocol.

11. The method according to claim 1, characterized in that The station construction start status and the station construction end status are generated by the station equipment status generator and transmitted to the central application server for storage through the central communication server.

12. The method according to claim 1, characterized in that When the station construction starts, the control right of the station equipment is switched from the dispatching center to the station; when the station construction ends, the control right of the station equipment is switched from the station to the dispatching center; wherein the switching state of the control right is generated by the station equipment state generator.

13. The method according to claim 1, characterized in that Also includes: The front-end terminal converts the differentiated data into a graphic table, which includes historical snapshot data at all times. The header of the graphic table includes at least: station number, station equipment type number, station equipment number, historical station equipment status interpretation and current station equipment status interpretation.

14. The method according to claim 13, characterized in that When selecting the historical snapshot data of one of the station equipment for comparison, multiple station numbers can be selected at one time. Within a station number, only one moment can be selected at a time to compare the station equipment status.

15. A station equipment status verification device based on a CTC system, characterized in that: include: A station equipment status generator, which is connected to each station equipment and is used to generate station equipment status data in real time; A central communication server connected to the station equipment status generator for transmitting data; A central application server, which is connected to the station equipment status generator through the central communication server and is used to receive, store and send the station equipment status data in real time; A front-end terminal, which is connected to the central application server through the central communication server, and is used to send a station equipment status application and receive and display the station equipment status data sent from the central application server; The front-end terminal parses the station equipment status data based on the internal protocol of the CTC system, generates a station equipment status interpretation, and generates station equipment status differentiation data by comparing the station equipment status interpretation at the beginning and the end of the station construction, thereby completing the station equipment status verification.

16. The device according to claim 15, characterized in that The central application server is a dual-machine hot standby structure, including a host central application server and a standby central server. The host central application server and the standby central server run simultaneously. When the host central application server stores station equipment status data, the standby central server synchronizes the station equipment status data from the host central application server.

17. The device according to claim 15, characterized in that The front-end terminal includes a graphic window, and the front-end terminal converts the differential data into a graphic table and displays it through the graphic window.

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