CN113709781A - FZy-CTC system GSM-R application service function self-checking system - Google Patents

FZy-CTC system GSM-R application service function self-checking system Download PDF

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Publication number
CN113709781A
CN113709781A CN202110912314.9A CN202110912314A CN113709781A CN 113709781 A CN113709781 A CN 113709781A CN 202110912314 A CN202110912314 A CN 202110912314A CN 113709781 A CN113709781 A CN 113709781A
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China
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data
wireless
fzy
gsm
sending
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Chinese (zh)
Inventor
高峰
张涛
许伟
王涛
赵宏涛
李智
段晓磊
陈�峰
王志南
金海林
李伟
刘黎
孙延浩
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China Academy of Railway Sciences Corp Ltd CARS
Signal and Communication Research Institute of CARS
Beijing Ruichi Guotie Intelligent Transport Systems Engineering Technology Co Ltd
Beijing Huatie Information Technology Co Ltd
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China Academy of Railway Sciences Corp Ltd CARS
Signal and Communication Research Institute of CARS
Beijing Ruichi Guotie Intelligent Transport Systems Engineering Technology Co Ltd
Beijing Huatie Information Technology Co Ltd
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Priority to CN202110912314.9A priority Critical patent/CN113709781A/en
Publication of CN113709781A publication Critical patent/CN113709781A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08—Protocols for interworking; Protocol conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/06—Testing, supervising or monitoring using simulated traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft

Abstract

The invention discloses a FZy-CTC system GSM-R application service function self-checking system, which replaces the manual work of a tester in the process of testing the GSM-R application service function, wherein the tester participates in the work of simulating test data and manually checks a function verification result, can automatically simulate and send GSM-R service data in batches, automatically verifies the correctness of data protocol conversion, and improves the efficiency of function test; the self-checking system has a simple structure, can complete the construction of a testing environment only by adopting the FZy-CTC system application server subsystem and the G network interface subsystem, simplifies the structure of a service function testing environment, reduces the difficulty of related service function testing, realizes the synchronous simulation of various service data with different sending frequencies, and provides an effective way for testing the reliability and stability of the GSM-R service function.

Description

FZy-CTC system GSM-R application service function self-checking system
Technical Field
The invention relates to the technical field of rail transit, in particular to an FZy-CTC system GSM-R application service function self-checking system.
Background
The central dispatching Control System (CTC) is a technical device for monitoring and controlling signal equipment of stations in a district controlled by a dispatching center and performing unified command and management on train operation.
A distributed automatic dispatching centralized system (FZy-CTC type) is a new generation of traffic command and signal control equipment taking dispatching centralized as a core, can realize automatic control of the equipment and unmanned traffic command at an intermediate station without passenger-cargo operation, fully considers the actual conditions of mixed passenger-cargo running and complex shunting operation of China railway, and realizes the unified control of train and shunting operation. The FZy-CTC system can be roughly divided into four subsystems of central dispatching, station decentralized self-discipline, background service and external interface, wherein the external interface subsystem can be divided into a main company interface, an RBC (radio block center) interface, a G network interface, a DMS (train control equipment dynamic monitoring system) interface, a PSCADA (high speed railway power supply monitoring system) interface and the like according to different types or protocols of processing information.
The GSM-R (Global System for Mobile Communications-Railway) System is a comprehensive special digital Mobile communication System specially designed for Railway communication, is used for daily operation management of railways, and is a very effective dispatching command communication tool.
In the actual operation of the railway, the FZy-CTC system central dispatching subsystem and the station distributed autonomous subsystem have information interaction with the trains in the jurisdiction range. The GSM-R system is connected with the FZy-CTC system G network interface subsystem to realize the wireless transmission and forwarding of the interactive information between the train and the station and between the train and the dispatching center.
Generally, the GSM-R service functions of the FZy-CTC system are divided into wireless train number transmission, train route advance notice transmission, wireless scheduling command transmission, wireless shunting operation list transmission and the like. In the process of transmitting different wireless information, corresponding variable detection and card control logics are provided to improve the overall efficiency and stability of the system.
1) And (4) wireless train number.
The wireless train number information is the train information sent by the locomotive to FZy-CTC system, and includes information of locomotive type, locomotive number, train number, driver number, location area ID number, train location kilometer sign, running speed, etc. FZy-CTC system G network interface will receive wireless train number information according to protocol rule will be converted from G network protocol to CTC protocol, then judge whether the position area ID it contains is in the scope of administration, if yes, position the train station accurately according to the kilometer sign information, send this wireless train number information to the decentralized autonomous subsystem of the corresponding station, and finally display this train number information in FZy-CTC system man-machine workstation; if the location area ID contained in the message is not FZy-CTC system jurisdiction, the message is discarded and not processed.
2) And forecasting the train route.
The advance notice of train route includes advance notice of receiving train and advance notice of departure train. The receiving route forenotice is the forenotice information sent to the locomotive by the station distributed autonomous subsystem before the train does not enter the station and after the corresponding receiving/passing route arrangement succeeds, wherein the information comprises the train number, the locomotive number, the route command of the opened permission signal and the station track name of the train passing and stopping; the departure route advance notice is the advance notice information sent to the locomotive by the station distributed autonomous system after the train is stably stopped on the planned departure station track, and the information comprises the train number, the locomotive number, the route order of the opened permission signal and the name of the station in front of the train. The route advance information uniquely determines a target train according to the locomotive number and the train number, is converted into a G network protocol by a CTC protocol according to protocol rules through a G network interface of the FZy-CTC system according to protocol rules and is sent to a GSM-R system, and then is sent to the locomotive in a wireless transmission mode.
3) A wireless scheduling command.
The wireless dispatching command is command information sent to the locomotive and manually edited by a dispatcher through a central dispatching subsystem, and comprises a locomotive number, a train number, a command text and the like. The command information can be sent to a plurality of locomotives simultaneously, different target trains are identified at the G network interface according to the locomotive number and the train number, and the command information is sent to the GSM-R system after the same protocol conversion and is wirelessly transmitted to the locomotives.
4) And (5) carrying out wireless shunting operation list.
The wireless shunting operation sheet is the shunting plan information sent to the locomotive by a station attendant manually edited by a decentralized autonomous subsystem, and comprises an operation sheet number, a train number, a locomotive number, planning start time, planning end time, shunting group personnel, operation items, shunting route information and the like, and the locomotive carries out station shunting operation in coordination with the shunting operation sheet information. The shunting operation information uniquely determines a target train according to the train number and the train number, and the G network interface converts a CTC protocol into a G network protocol according to a protocol rule and sends the G network protocol to a GSM-R system and then to the locomotive in a wireless transmission mode.
At present, the main tool for detecting the GSM-R application service function is GSM-R system simulation, and G network protocol data is analyzed and simulated. Specifically, the method comprises the following steps: 1) and G, analyzing the network protocol data. When the route advance notice, the wireless scheduling command and the wireless shunting operation list information sent by the FZy-CTC system are verified, the G network protocol data after the G network interface protocol conversion is automatically analyzed, key field information is extracted to form information which can be visually judged by a tester, and the correctness of the protocol conversion needs to be manually confirmed. 2) G network protocol data simulation. When the wireless train number information is verified, the numerical values of all key fields of the wireless train number information can be manually selected and filled, then the wireless train number information of the G network protocol is generated by analog package, and the wireless train number information is transmitted to the FZy-CTC system after being converted by the G network interface protocol.
The technical defects of the prior art are as follows: 1) the GSM-R application service data simulation needs manual intervention, and the method is single and low in efficiency; 2) it can not automatically verify whether the conversion between the G network protocol data and the CTC protocol data is correct.
Disclosure of Invention
The invention aims to provide an FZy-CTC system GSM-R application service function self-checking system which can automatically simulate and generate GSM-R application service data, automatically detect a GSM-R application service data protocol conversion function and automatically monitor the GSM-R application service function performance.
The purpose of the invention is realized by the following technical scheme:
an FZy-CTC system GSM-R application service function self-checking system is connected with a FZy-CTC system G network interface subsystem and a FZy-CTC system application server, and meanwhile, the FZy-CTC system G network interface subsystem and the FZy-CTC system application server are mutually connected to form a closed-loop data transmission structure, and the system comprises:
the automatic simulation generation unit of the GSM-R application service data is used for simulating and generating the GSM-R application service data and transmitting the GSM-R application service data to an FZy-CTC system G network interface subsystem or a FZy-CTC system application server through a corresponding protocol according to the data type;
the GSM-R application service data protocol conversion detection unit is used for carrying out consistency judgment on converted GSM-R application service data from an FZy-CTC system G network interface subsystem and a FZy-CTC system application server and corresponding GSM-R application service data generated by simulation, and detecting a protocol conversion function of a FZy-CTC system;
the automatic detection unit of the GSM-R application service function performance is used for simulating and sending a plurality of types of data by utilizing a closed-loop data transmission structure, and recording the sending and receiving conditions of each type of data before and after protocol conversion in real time according to a set sending frequency so as to detect the GSM-R application service function performance.
According to the technical scheme provided by the invention, the manual work of test personnel for simulating test data and manually checking a function verification result in the GSM-R application service function test process is replaced, the GSM-R service data can be automatically simulated and sent in batches, the correctness of data protocol conversion is automatically verified, and the efficiency of function test is improved; the self-checking system has a simple structure, can complete the construction of a testing environment only by adopting the FZy-CTC system application server subsystem and the G network interface subsystem, simplifies the structure of a service function testing environment, reduces the difficulty of related service function testing, realizes the synchronous simulation of various service data with different sending frequencies, and provides an effective way for testing the reliability and stability of the GSM-R service function.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic diagram of an FZy-CTC system GSM-R application service function self-checking system according to an embodiment of the present invention;
fig. 2 is a closed-loop data transmission structure diagram for GSM-R application service function test according to an embodiment of the present invention;
FIG. 3 is a flow chart of simulation for generating wireless train number data according to an embodiment of the present invention;
FIG. 4 is a flow chart of simulation for generating data of a train route forecast provided by an embodiment of the present invention;
fig. 5 is a flowchart for simulating generation of wireless dispatching command data and wireless shunting operation sheet data according to an embodiment of the present invention;
FIG. 6 is a flow chart of a wireless train number data protocol conversion automatic detection logic according to an embodiment of the present invention;
fig. 7 is a logic flow diagram for verifying GSM-R service function performance according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The terms that may be used herein are first described as follows:
the terms "comprising," "including," "containing," "having," or other similar terms of meaning should be construed as non-exclusive inclusions. For example: including a feature (e.g., material, component, ingredient, carrier, formulation, material, dimension, part, component, mechanism, device, process, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product, or article of manufacture), is to be construed as including not only the particular feature explicitly listed but also other features not explicitly listed as such which are known in the art.
The invention provides an FZy-CTC system GSM-R application service function self-checking system. Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art. Those not specifically mentioned in the examples of the present invention were carried out according to the conventional conditions in the art or conditions suggested by the manufacturer.
As shown in fig. 1, an FZy-CTC system GSM-R application service function self-checking system mainly includes:
the automatic simulation generation unit of the GSM-R application service data is used for simulating and generating the GSM-R application service data and transmitting the GSM-R application service data to an FZy-CTC system G network interface subsystem or a FZy-CTC system application server through a corresponding protocol according to the data type;
the GSM-R application service data protocol conversion detection unit is used for carrying out consistency judgment on converted GSM-R application service data from an FZy-CTC system G network interface subsystem and a FZy-CTC system application server and corresponding GSM-R application service data generated by simulation, and detecting a protocol conversion function of a FZy-CTC system;
the automatic detection unit of the GSM-R application service function performance is used for simulating and sending a plurality of types of data by utilizing a closed-loop data transmission structure, and recording the sending and receiving conditions of each type of data before and after protocol conversion in real time according to a set sending frequency so as to detect the GSM-R application service function performance.
As shown in fig. 2, the FZy-CTC system GSM-R application service function self-checking system provided in the embodiment of the present invention is connected to the FZy-CTC system G network interface subsystem and the FZy-CTC system application server, and the FZy-CTC system G network interface subsystem and the FZy-CTC system application server are connected to each other to form a closed-loop data transmission structure.
In order to more clearly show the technical solutions and the technical effects provided by the present invention, a self-checking system for GSM-R application service functions of an FZy-CTC system according to an embodiment of the present invention is described in detail with specific embodiments.
First, GSM-R application service data automatic simulation generation unit.
The GSM-R application service data comprises wireless train number data, train route advance notice data, wireless scheduling command data and wireless shunting operation order data. The automatic simulation generation unit of the GSM-R application service data can automatically simulate and generate wireless train number data of a G network protocol in batches, send the wireless train number data to an FZy-CTC system G network interface subsystem (which can be called as a G network interface for short) through the G network protocol, and send the wireless train number data to a FZy-CTC system application server (which can be called as an application server for short) through a FZy-CTC system G network interface subsystem; meanwhile, wireless dispatching command data, wireless shunting operation order data and train route advance notice data of the CTC protocol can be generated in a batch simulation mode, are sent to the FZy-CTC system application server through the CTC protocol and are sent to the FZy-CTC system G network interface subsystem through the FZy-CTC system application server.
In the embodiment of the invention, the wireless train number data is G network protocol data; the train route advance notice data, the wireless dispatching command data and the wireless shunting operation order data are CTC protocol data. The purpose of generating the data is to make the G network interface perform mutual conversion between the G network protocol and the CTC protocol. In practical application, wireless train number data is sent by a G network, is converted into CTC protocol data through a protocol and is sent to a CTC system; the train route advance notice data, the wireless dispatching command data and the wireless shunting operation order data are sent by the CTC system, converted into G network protocol data through a protocol and sent to the G network.
The following description is directed to the manner in which each type of data is generated by simulation.
1. And generating wireless train number data in a simulation mode.
The simulation of the wireless train number data needs to consider the filtering logic of the G network interface on the data, preset a reasonable position area ID range and a train position kilometer post range, the wireless train number data generated after the data is randomly selected in the range can be screened through the G network interface and finally forwarded to an FZy-CTC system, the wireless train number data generation process is shown in FIG. 3 and mainly comprises the following steps:
1) let L be the number of transmitted wireless train number packets, and set L to 0 at the start of simulation.
2) Setting the end data sending flag bit as M, and setting M as 0 when starting simulation; in the simulation process, manual intervention can be carried out at any time to forcibly change the value of the end data sending zone bit M to be 1.
3) And randomly selecting any value in a preset legal location area ID range.
4) Randomly selecting any value in a preset legal kilometer post range.
5) Randomly generating other field information in the G network protocol, including: train number, locomotive type, locomotive number, driver number, and train speed, among other information.
6) And generating wireless train number information according to the G network protocol package, and sending the wireless train number information to the outside, and adding 1 to the number L of the sent wireless train number data packets.
7) After each packet of wireless train number data is generated, whether the end data sending flag bit M is 1 needs to be judged; if the number is 1, stopping simulating to generate wireless train number data; if the value is 0, continuing to simulate and generate new wireless train number data.
2. And simulating to generate train route forecast data.
The automatic simulation generation unit of the GSM-R application service data can simulate and generate train route forecast data of the CTC protocol in batches, send the train route forecast data to the FZy-CTC system application server, and forward the train route forecast data to the G network interface through the FZy-CTC system application server, and finally acquire route forecast information of the G network protocol. According to the logic of the G network interface, only the train registered by the G network forwards the related train route forecast, and if the route forecast information of the unregistered train is received, the train is thrown out and not forwarded. Therefore, before generating the train route advance notice in a simulation manner, wireless train number data (G network protocol) of the same train needs to be generated in a simulation manner and sent to a G network interface, so that the G network interface records that the corresponding train is in a registered state, and then generates the same train route advance notice information in a simulation manner, wherein a generation process of the train route advance notice data is shown in fig. 4 and mainly comprises the following steps:
1) the number of transmitted train route advance notice packets is set to I, and when the simulation is started, I is set to 0.
2) Setting an end data sending flag bit as K, and setting K to be 0 when starting simulation; in the data simulation process, manual intervention can be carried out at any time to forcibly change the value of the data transmission end zone bit K to be 1.
3) And (3) transmitting the wireless train number data in the GSM-R application service data generated by simulation to an FZy-CTC system G network interface subsystem, which can refer to the mode shown in FIG. 3.
4) Recording train number, locomotive type and locomotive number information in the wireless train number data, randomly generating an advance notice ID number, a function code and advance notice content, generating train advance notice information according to a CTC protocol package, and sending the train advance notice information to an FZy-CTC system application server; meanwhile, the number of transmitted packets I is increased by 1.
5) After generating a packet of train route advance notice data, judging whether an ending data sending flag bit K is 1 or not; if the number is 1, stopping simulating to generate wireless train number data; if the value is 0, continuing to simulate and generate new wireless train number data.
3. And simulating to generate wireless dispatching command data and wireless shunting operation sheet data.
The GSM-R application service data automatic simulation generation unit can simulate batch generation of wireless dispatching command data and wireless shunting operation order data of the CTC protocol, send the data to the FZy-CTC system application server, convert the data into G network protocol data through the FZy-CTC system application server through the protocol and forward the data to the G network interface. . The simulation generation principle of the two data is the same, but the two data belong to different threads in the simulation generation process and need to be executed respectively. The two data are information sent to the locomotive by an FZy-CTC system, and the G network interface can directly process and forward without any card control as long as the type of the locomotive, the locomotive number and the train number in the data are judged to be valid. Therefore, the two types of data generated by simulation are completely consistent in logic, all the field information is randomly generated and packaged according to the CTC protocol, the locomotive number and train number fields are guaranteed to be valid, and the wireless dispatching command data and wireless dispatching operation order data generation process is shown in fig. 5 and mainly comprises the following steps:
1) let the number of transmitted packets be R, and set R to 0 at the start of the simulation.
2) Setting an end data sending flag bit as T, and setting the T as 0 when starting simulation; in the data simulation process, manual intervention can be carried out at any time to forcibly change the value of the end data sending zone bit Y to be 1.
3) And randomly generating effective locomotive types, locomotive numbers and train numbers.
As described above, the wireless train number data and the contents of the train route advance notice data include the above three information, and the wireless train number data mainly provides train information, such as a train number, a locomotive number, a driver name, a train speed, and the like; the train route announcement is a notification message sent to the train engineer, and it is clear that the admission signal has been opened for XX trains. The locomotive number and the locomotive type are pure numbers and can be generated at will; the train number is in the form of a letter + number, such as G123, and may also be randomly generated according to this format.
4) Randomly generating other field information according to a CTC protocol, packaging the field information according to the CTC protocol, and sending the field information to an FZy-CTC system application server; meanwhile, the number of transmitted packets is increased by 1.
Specifically, the method comprises the following steps:
when the wireless dispatching command data is generated in an analog mode, command types, command IDs, command titles, command contents, command mechanisms and command issuers are generated randomly, packaged according to a CTC protocol and sent to an FZy-CTC system application server; meanwhile, the number of transmitted packets is increased by 1.
When the wireless shunting operation sheet data are generated in an analog mode, an operation sheet ID, operation starting and stopping time, operation contents and shunting route information are generated randomly, packaged according to a CTC protocol and sent to an FZy-CTC system application server; at the same time, the number of transmitted packets R is increased by 1.
5) After each packet of data is generated, whether the end data sending mark T is 1 needs to be judged; if the number is 1, stopping simulating and generating data; if the value is 0, the simulation is continued to generate new data.
And secondly, a GSM-R application service data protocol conversion detection unit.
In the embodiment of the invention, the GSM-R self-checking system comprises two working modes: a protocol conversion verification mode and a performance verification mode. When working in the protocol conversion verification mode, the GSM-R application service data protocol conversion detection unit starts working, and can automatically compare FZy-CTC system protocol conversion front and back two packet data consistency to verify the protocol conversion function of different service data.
As shown in fig. 2, in the embodiment of the present invention, the GSM-R self-test system may simultaneously establish a communication connection with the G network interface and the application server, where the communication data with the G network interface is G network protocol data, the communication data with the application server is CTC protocol data, and a communication connection may be established between the application server and the G network interface, so that a closed-loop data transmission structure is formed. In the protocol conversion verification mode, the data sent by simulation and the data converted by the G network interface protocol can be cached and received, and the field information appointed by the data is compared so as to verify the correctness of the protocol conversion; specifically, the method comprises the following steps: detecting whether field information designated in the wireless train number data is consistent after the wireless train number data in the GSM-R application service data is converted from a G network protocol to a CTC protocol; and detecting whether field information specified in the data is consistent after train route advance notice data, wireless scheduling command data and wireless shunting operation sheet data in the GSM-R application service data are converted from a CTC protocol to a G network protocol.
In the embodiment of the invention, the specified field information mainly refers to some key field information. The following are exemplary: 1) the wireless train number data is the train information sent by the locomotive to the FZy-CTC system, and key field information may include: locomotive type, locomotive number, train number, driver number, location area ID number, train location kilometer sign, running speed, etc. 2) The train route forecast data is divided into a receiving route forecast and an departure route forecast; key field information in the pick-up advance notice may include: the train number, the locomotive number, the access command of the opened permission signal and the name of the station track of the train passing and stopping; the key field information in the departure advance notice may include: the train number, the locomotive number, the access command of the opened permission signal and the name of the station in front of the train. 3) The key field information in the wireless scheduling command data may include: locomotive number, train number, command text, etc. 4) The key field information in the wireless shunting worksheet data may include: job order number, train number, locomotive number, schedule start time, schedule end time, shunting crew, job project, shunting route information, and the like.
In the embodiment of the invention, the step of detecting the protocol conversion function of the FZy-CTC system comprises the following steps:
1) for any type of data in the GSM-R application service data, the detected data quantity is preset to be Z1.
2) Simulating to generate and corresponding type GSM-R application service data, setting continuous data sequence numbers (starting from 1) according to the transmission sequence, after the current packet data is transmitted, waiting for a specified interval (for example, 100ms) to simulate to generate and transmit the next packet data again until the number reaches Z1.
3) In the process of generating the data simulation, the serial number, the sending time T1 and the appointed field information of each packet of data are recorded and stored in the corresponding linked list 1.
4) After the transmission of the last packet of data is completed, waiting for a specified interval time, and recording the current system time Tz and the sequence number X1 of the last packet of data, wherein Z1 is more than or equal to X1.
5) And in the data sending process, the converted GSM-R application service data of the same type is received in real time, the appointed field information in the converted GSM-R application service data is analyzed, and the serial number is set for each packet of data according to the receiving sequence.
6) In the data receiving process, the serial number, the receiving time T2 and the appointed field information of each packet of data are recorded and stored in the corresponding linked list 2.
7) And continuously receiving the data before the transmission of the last packet of data is judged to be completed.
8) After the last packet of analog data is judged to be sent completely, if the maximum serial number Y1 of the currently received data is judged to be larger than or equal to X1 or the current system time is judged to be later than the Tz moment, the data reception is finished, and meanwhile, the maximum serial number Y1 of the received data is output; otherwise, continuing to receive data.
9) When the data transmission and reception are completed, it is determined whether X1 is consistent with Y1.
10) If the X1 is consistent with the Y1, two packet data with the same sequence number are obtained from the linked list 1 and the linked list 2 to compare the appointed field information; if the two are consistent, the comparison is passed, and the count K1 is added by 1; if not, recording the complete content of the two packet data in the log; after the comparison is completed, the final comparison result is output, and the passing number and the failing number (X1-K1 is the failing number).
11) And if the X1 is smaller than the Y1, stopping comparison and outputting an alarm prompt that the data is interfered. For example, "CTC protocol data has interference, please check if there is other information source or data reconfiguration".
12) If X1 is smaller than Y1, on the basis of the data of sequence number H1 in the linked list 1, searching for data of which the receiving time T2 is later than the sending time T1 of the data in the linked list 1 and the time difference does not exceed the specified interval time in the linked list 2.
13) If the data is not found, the log is recorded to prompt that the protocol conversion of the data with the sequence number H1 fails, the converted data is not found, the key field information of the data with the sequence number H1 is completely recorded, and the protocol conversion loss count S1 is added with 1; if the corresponding data in the chain table 2 is found, comparing the appointed field information of the two packet data, if the two packet data are consistent, the comparison is passed, and adding 1 to the counting K1; if not, recording the complete content of the two packets of information in the log;
14) and outputting a final comparison result after the comparison is finished, wherein the passing number, the failing number and the protocol conversion lost number are obtained.
As shown in fig. 6, the wireless train number data is taken as an example to show the automatic detection process of protocol conversion, that is, the detection process of converting the G network protocol into the CTC protocol; the protocol conversion logic for train route advance notice, wireless dispatching command and wireless shunting operation sheet data is converted from CTC protocol to G network protocol, the automatic detection principle is the same as that in FIG. 6, and the difference is only that the analog data is CTC protocol and the received data is G network protocol.
And thirdly, a GSM-R application service function performance automatic detection unit.
In the embodiment of the invention, when the GSM-R self-checking system works in a performance verification mode, the GSM-R application service function performance automatic detection unit starts to work, and the stability and the reliability of FZy-CTC systems in processing different types and receiving different frequency service data can be verified.
The detection of the performance of the GSM-R application service function is mainly considered from two aspects: firstly, the time for normally processing data is continued; the second is the kind and amount of data processed in a unit time. In the performance verification mode, the GSM-R self-checking system artificially presets test time by using the closed-loop data transmission structure shown in fig. 2, simulates and sends one or more types of legal data, individually sets specific data sending frequency, records the sending and receiving conditions of various data before and after protocol conversion in real time, and a tester can judge corresponding functional performance. The performance verification logic structure flow is shown in fig. 7, and mainly includes:
1) setting a plurality of threads, which are respectively as follows: the method comprises the steps of detecting a thread for simulating and generating wireless train number data and train route advance notice data, detecting a thread for simulating and generating wireless scheduling command data, detecting a thread for simulating and generating wireless shunting operation list data, detecting and processing CTC protocol information received, and detecting and processing G network protocol information received.
2) Presetting a main switch S of a sending thread as 1 and a main switch J of a receiving thread as 1; the main switch S of the sending thread can be changed into 0 by manual control at any time, the switch is 1 to represent an opening state, and 0 represents a closing state.
3) Presetting whether to detect and simulate to generate wireless train number data and train route advance notice data service; if not, setting the switch N to be 0; if the detection setting switch N is 1, the data transmission frequency X (unit ms) is preset, and the time interval between the analog wireless train number data and the train route advance notice data is represented.
4) Presetting whether to detect a wireless scheduling command data service generated in a simulation way or not; if not, setting the switch P to be 0; if verified, the switch P is set to 1, and the data transmission frequency Y (in ms) is preset.
5) Presetting whether to detect and simulate to generate wireless shunting operation single data service or not; if not, setting the switch Q to be 0; if verified, the switch Q is set to 1, and the data transmission frequency Z (in ms) is preset.
6) When the switch N is 1, generating and sending wireless train number data to an FZy-CTC system G network interface subsystem in an analog mode, and dynamically updating the data sending quantity A; recording the train number and the locomotive number in the data after transmitting a packet of wireless train number data, simulating to generate train route advance notice data, transmitting the train route advance notice data to an FZy-CTC system application server, and dynamically updating the data transmission quantity B; after each group of wireless train number data and train route advance notice data is sent, whether a sending thread master switch S is closed or not is checked; if the switch is closed, setting the switch N to be 0; and if not, continuing to simulate the next group of data to be transmitted outwards according to the preset data transmission frequency X.
7) When the switch P is 1, starting simulation generation and sending wireless scheduling command data to an FZy-CTC system application server, dynamically updating the data sending quantity C, and checking whether a sending thread master switch S is closed after sending a packet of wireless scheduling command data; if closed, setting the switch P to be 0; and if not, continuing to simulate the next packet of wireless scheduling command data to be transmitted outwards according to the preset data transmission frequency Y.
8) When the switch Q is 1, starting simulation generation and sending wireless shunting operation sheet data to an FZy-CTC system application server, dynamically updating the data sending quantity D, and checking whether a sending thread main switch S is closed after sending a packet of wireless shunting operation sheet data; if the switch is closed, setting the switch Q to be 0; and if not, continuously simulating the next packet of wireless shunting operation list data to be transmitted outwards according to the preset data transmission frequency Z.
9) When a receiving thread master switch J is 1, starting to process data from a G network interface subsystem of an FZy-CTC system, automatically identifying wireless scheduling command data, wireless shunting operation order data and train route advance notice data according to a G network protocol, and dynamically updating the receiving quantity E, F and G of the three types of data respectively; and judging the state of the receiving thread master switch J in real time, and stopping the thread if detecting that the receiving thread master switch J is 0.
10) When a receiving thread master switch J is 1, starting to process data from an FZy-CTC system application server, automatically identifying wireless train number data according to a CTC protocol, and dynamically updating a data receiving quantity H; and judging the state of the receiving thread master switch J in real time, and stopping the thread if detecting that the receiving thread master switch J is 0.
11) When the sending thread master switch S is 0 (that is, the sending thread master switch S is set to 0 by manual intervention), the switches N, P and Q of the three threads are automatically detected, and if the three are all 0, the delay setting time (for example, 1S) is set to the post-receiving thread master switch J to be 0;
12) after the manual stopping performance verification (namely the main switch S of the sending thread is 0), under the correct condition, the sending quantity A of the sent wireless train number data is the same as the receiving quantity H, the sending quantity B of the train route advance notice data is the same as the receiving quantity G, the sending quantity C of the wireless scheduling command data is the same as the receiving quantity E, and the sending quantity D of the wireless shunting operation single data is the same as the receiving quantity F; if any two groups of numbers are inconsistent, the performance of the corresponding service function is defective under the conditions of the simulated processing data volume and the simulated processing data frequency.
The scheme of the embodiment of the invention has the following beneficial effects:
1) the method and the device replace the manual work of test personnel for simulating test data and manually checking a function verification result in the GSM-R application service function test process, can automatically simulate and send the GSM-R service data in batches, automatically verify the correctness of data protocol conversion, and improve the efficiency of function test.
2) The self-checking system has a simple structure, can complete the construction of a testing environment only by adopting the FZy-CTC system application server subsystem and the G network interface subsystem, simplifies the structure of a service function testing environment, and reduces the difficulty of related service function testing.
3) The synchronous simulation of multiple types of different sending frequency service data is realized, and an effective way is provided for testing the reliability and stability of the GSM-R service function.
Through the above description of the embodiments, it is clear to those skilled in the art that the above embodiments can be implemented by software, and can also be implemented by software plus a necessary general hardware platform. With this understanding, the technical solutions of the embodiments can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods according to the embodiments of the present invention.
It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the system is divided into different functional modules to perform all or part of the above described functions.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. An FZy-CTC system GSM-R application service function self-checking system is characterized in that the system is connected with a FZy-CTC system G network interface subsystem and a FZy-CTC system application server, and the FZy-CTC system G network interface subsystem and the FZy-CTC system application server are mutually connected to form a closed-loop data transmission structure, and the system comprises:
the automatic simulation generation unit of the GSM-R application service data is used for simulating and generating the GSM-R application service data and transmitting the GSM-R application service data to an FZy-CTC system G network interface subsystem or a FZy-CTC system application server through a corresponding protocol according to the data type;
the GSM-R application service data protocol conversion detection unit is used for carrying out consistency judgment on converted GSM-R application service data from an FZy-CTC system G network interface subsystem and a FZy-CTC system application server and corresponding GSM-R application service data generated by simulation, and detecting a protocol conversion function of a FZy-CTC system;
the automatic detection unit of the GSM-R application service function performance is used for simulating and sending a plurality of types of data by utilizing a closed-loop data transmission structure, and recording the sending and receiving conditions of each type of data before and after protocol conversion in real time according to a set sending frequency so as to detect the GSM-R application service function performance.
2. The FZy-CTC system GSM-R application service function self-checking system according to claim 1, wherein the GSM-R application service data comprises: wireless train number data, train route advance notice data, wireless scheduling command data and wireless shunting operation order data; wherein:
the wireless train number data is sent to an FZy-CTC system G network interface subsystem through a G network protocol, and then is sent to a FZy-CTC system application server through a FZy-CTC system G network interface subsystem;
the train route forecast data is sent to an FZy-CTC system application server through a CTC protocol and then sent to a FZy-CTC system G network interface subsystem through a FZy-CTC system application server; the GSM-R application service data automatic simulation generation unit generates a wireless train number and sends the wireless train number to the FZy-CTC system G network interface subsystem, then records the registered state of a related train, and generates a train route forecast;
the wireless dispatching command data and the wireless shunting operation order data are sent to an FZy-CTC system application server through a CTC protocol, and then sent to a FZy-CTC system G network interface subsystem through a FZy-CTC system application server.
3. The FZy-CTC system GSM-R application service function self-checking system according to claim 1 or 2, wherein the step of generating the simulation of the wireless train number data in the GSM-R application service data comprises:
setting the number of transmitted wireless train number data packets as L, and setting the L to be 0 when starting simulation;
setting the end data sending flag bit as M, and setting M as 0 when starting simulation; in the simulation process, manual intervention can be carried out at any time to forcibly change the value of the end data sending zone bit M to be 1;
randomly selecting any value in a preset legal location area ID range;
randomly selecting any value in a preset legal kilometer post range;
randomly generating other field information in the G network protocol, including: train number, locomotive type, locomotive number, driver number, and train speed;
generating wireless train number information according to the G network protocol package and sending the wireless train number information to the outside, and adding 1 to the number L of the sent wireless train number data packets;
after each packet of wireless train number data is generated, whether the end data sending flag bit M is 1 needs to be judged; if the number is 1, stopping simulating to generate wireless train number data; if the value is 0, continuing to simulate and generate new wireless train number data.
4. The FZy-CTC system GSM-R application service functional self-checking system according to claim 1 or 2, wherein the simulation generation step of train route forecast data in the GSM-R application service data comprises:
setting the number of transmitted train route advance notice data packets as I, and setting the I as 0 when starting simulation;
setting an end data sending flag bit as K, and setting K to be 0 when starting simulation; in the data simulation process, manual intervention can be carried out at any time to forcibly change the value of the end data sending zone bit K to be 1;
wireless train number data in the GSM-R application service data generated in a simulation mode are sent to an FZy-CTC system G network interface subsystem;
recording train number, locomotive type and locomotive number information in the wireless train number data, randomly generating an advance notice ID number, a function code and advance notice content, generating train advance notice information according to a CTC protocol package, and sending the train advance notice information to an FZy-CTC system application server; meanwhile, adding 1 to the number I of the sent data packets;
after generating a packet of train route advance notice data, judging whether an ending data sending flag bit K is 1 or not; if the number is 1, stopping simulating to generate wireless train number data; if the value is 0, continuing to simulate and generate new wireless train number data.
5. The FZy-CTC system GSM-R application service function self-checking system according to claim 1 or 2, wherein the wireless dispatching command data in the GSM-R application service data and the wireless dispatching job ticket data are generated in the same way, including:
setting the number of sent data packets as R, and setting R to be 0 when starting simulation;
setting an end data sending flag bit as T, and setting the T as 0 when starting simulation; in the data simulation process, manual intervention can be carried out at any time to forcibly change the value of the end data sending zone bit Y to be 1;
randomly generating effective locomotive types, locomotive numbers and train numbers;
when the wireless dispatching command data is generated in an analog mode, command types, command IDs, command titles, command contents, command mechanisms and command issuers are generated randomly, packaged according to a CTC protocol and sent to an FZy-CTC system application server; meanwhile, adding 1 to the number of the sent data packets;
when the wireless shunting operation sheet data are generated in an analog mode, an operation sheet ID, operation starting and stopping time, operation contents and shunting route information are generated randomly, packaged according to a CTC protocol and sent to an FZy-CTC system application server; meanwhile, adding 1 to the number R of the sent data packets;
after each packet of data is generated, whether the end data sending mark T is 1 needs to be judged; if the number is 1, stopping simulating and generating data; if the value is 0, the simulation is continued to generate new data.
6. The FZy-CTC system GSM-R application service function self-checking system of claim 1, wherein the protocol conversion function of the detection FZy-CTC system comprises:
detecting whether field information designated in the wireless train number data is consistent after the wireless train number data in the GSM-R application service data is converted from a G network protocol to a CTC protocol;
and detecting whether field information specified in the data is consistent after train route advance notice data, wireless scheduling command data and wireless shunting operation sheet data in the GSM-R application service data are converted from a CTC protocol to a G network protocol.
7. The FZy-CTC system GSM-R application transaction function self-checking system of claim 1 or 6, wherein the step of checking the protocol conversion function of FZy-CTC system comprises:
for any type of data in the GSM-R application service data, presetting the detected data quantity as Z1;
simulating to generate GSM-R application service data of corresponding types, setting continuous data serial numbers according to a sending sequence, and after the current packet data is sent, waiting for a specified interval time to simulate to generate and send the next packet of data again until the quantity reaches Z1;
in the process of data simulation generation, recording the serial number, the sending time T1 and the appointed field information of each packet of data, and storing the serial number, the sending time T1 and the appointed field information into a corresponding linked list 1;
after the last packet of data is sent, waiting for a specified interval time, and recording the current system time Tz and the serial number X1 of the last packet of data, wherein Z1 is more than or equal to X1;
in the data sending process, the converted GSM-R application service data of the same type are received in real time, designated field information in the converted GSM-R application service data is analyzed, and a serial number is set for each packet of data according to the receiving sequence;
in the data receiving process, recording the serial number, the receiving time T2 and the appointed field information of each packet of data, and storing the serial number, the receiving time T2 and the appointed field information into a corresponding linked list 2;
continuously receiving and processing the data before the last packet of data is judged to be sent;
after the last packet of analog data is judged to be sent completely, if the maximum serial number Y1 of the currently received data is judged to be larger than or equal to X1 or the current system time is judged to be later than the Tz moment, the data reception is finished, and meanwhile, the maximum serial number Y1 of the received data is output; otherwise, continuing to receive data;
after the data transmission and reception are completed, judging whether X1 is consistent with Y1;
if the X1 is consistent with the Y1, two packet data with the same sequence number are obtained from the linked list 1 and the linked list 2 to compare the appointed field information; if the two are consistent, the comparison is passed, and the count K1 is added by 1; if not, recording the complete content of the two packet data in the log; after the comparison is finished, outputting a final comparison result, and passing numbers and failing numbers;
if the X1 is smaller than the Y1, stopping comparison, and outputting an alarm prompt that the data is interfered;
if X1 is smaller than Y1, on the basis of the data of sequence number H1 in the linked list 1, searching data of which the receiving time T2 is later than the sending time T1 of the data in the linked list 1 and the time difference does not exceed the specified interval time in the linked list 2;
if the data is not found, the log is recorded to prompt that the protocol conversion of the data with the sequence number H1 fails, the converted data is not found, the key field information of the data with the sequence number H1 is completely recorded, and the protocol conversion loss count S1 is added with 1; if the corresponding data in the chain table 2 is found, comparing the appointed field information of the two packet data, if the two packet data are consistent, the comparison is passed, and adding 1 to the counting K1; if the two information packets are inconsistent, recording the complete content of the two information packets in the log;
and outputting a final comparison result after the comparison is finished, wherein the passing number, the failing number and the protocol conversion lost number are obtained.
8. The FZy-CTC system GSM-R application service function self-checking system according to claim 1, wherein the detecting GSM-R application service function capability comprises a plurality of threads, respectively: detecting a thread for generating wireless train number data and train route advance notice data in an analog mode, a thread for generating wireless scheduling command data in an analog mode, a thread for generating wireless shunting operation list data in an analog mode, a thread for detecting and processing received CTC protocol information and a thread for detecting and processing received G network protocol information; the wireless train number data, the train route advance notice data, the wireless dispatching command data and the wireless dispatching operation sheet data are GSM-R application service data;
presetting a main switch S of a sending thread as 1 and a main switch J of a receiving thread as 1; the main switch S of the sending thread can be changed into 0 by manual control at any time, the switch is 1 to represent an opening state, and 0 represents a closing state;
presetting whether to detect and simulate to generate wireless train number data and train route advance notice data service; if not, setting the switch N to be 0; if the detection setting switch N is 1, presetting a data sending frequency X, and representing the time interval between the simulation wireless train number data and the train route advance notice data;
presetting whether to detect a wireless scheduling command data service generated in a simulation way or not; if not, setting the switch P to be 0; if the verification is carried out, setting the switch P to be 1, and meanwhile presetting a data transmission frequency Y;
presetting whether to detect and simulate to generate wireless shunting operation single data service or not; if not, setting the switch Q to be 0; if the verification is carried out, setting the switch Q to be 1, and meanwhile presetting data transmission frequency Z;
when the switch N is 1, generating and sending wireless train number data to an FZy-CTC system G network interface subsystem in an analog mode, and dynamically updating the data sending quantity A; recording the train number and the locomotive number in the data after transmitting a packet of wireless train number data, simulating to generate train route advance notice data, transmitting the train route advance notice data to an FZy-CTC system application server, and dynamically updating the data transmission quantity B; after each group of wireless train number data and train route advance notice data is sent, whether a sending thread master switch S is closed or not is checked; if the switch is closed, setting the switch N to be 0; if not, continuing to simulate the next group of data to be transmitted outwards according to the preset data transmission frequency X;
when the switch P is 1, starting simulation generation and sending wireless scheduling command data to an FZy-CTC system application server, dynamically updating the data sending quantity C, and checking whether a sending thread master switch S is closed after sending a packet of wireless scheduling command data; if closed, setting the switch P to be 0; if not, continuing to simulate the next packet of wireless scheduling command data to be transmitted outwards according to the preset data transmission frequency Y;
when the switch Q is 1, starting simulation generation and sending wireless shunting operation sheet data to an FZy-CTC system application server, dynamically updating the data sending quantity D, and checking whether a sending thread main switch S is closed after sending a packet of wireless shunting operation sheet data; if the switch is closed, setting the switch Q to be 0; if not, continuing to simulate the next packet of wireless shunting operation list data to be transmitted outwards according to the preset data transmission frequency Z;
when a receiving thread master switch J is 1, starting to process data from a G network interface subsystem of an FZy-CTC system, automatically identifying wireless scheduling command data, wireless shunting operation order data and train route advance notice data according to a G network protocol, and dynamically updating the receiving quantity E, F and G of the three types of data respectively; judging the state of a receiving thread master switch J in real time, and stopping the thread if detecting that the receiving thread master switch J is 0;
when a receiving thread master switch J is 1, starting to process data from an FZy-CTC system application server, automatically identifying wireless train number data according to a CTC protocol, and dynamically updating a data receiving quantity H; judging the state of a receiving thread master switch J in real time, and stopping the thread if detecting that the receiving thread master switch J is 0;
when the main switch S of the sending thread is 0, automatically detecting the switches N, P and Q of the three threads, and if the three are all 0, delaying the set time and then setting the main switch J of the receiving thread to be 0;
after a main switch S of a sending thread is 0, under the correct condition, the sending quantity A of sending wireless train number data is the same as the receiving quantity H, the sending quantity B of train route advance notice data is the same as the receiving quantity G, the sending quantity C of wireless scheduling command data is the same as the receiving quantity E, and the sending quantity D of wireless shunting operation single data is the same as the receiving quantity F; if any two groups of numbers are inconsistent, the performance of the corresponding service function is defective under the conditions of the simulated processing data volume and the simulated processing data frequency.
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