CN114394137A - Simulation integration test platform and test method for vehicle-mounted signal system - Google Patents
Simulation integration test platform and test method for vehicle-mounted signal system Download PDFInfo
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Abstract
The invention provides a simulation integrated test platform for a vehicle-mounted signal system, which comprises a control interface, a platform control module, a sensor control module and an acquisition and measurement module, wherein the platform control module is connected with the control interface; the control interface is used for setting a control command aiming at the train and sending the control command to the platform control module; the platform control module is used for processing the control command into an action instruction and sending the action instruction to the sensor control module; the sensor control module is connected with the vehicle-mounted signal system and used for generating a plurality of analog signals according to the action instructions, the analog signals are used for simulating the running of the train and respectively output the analog signals to the corresponding vehicle-mounted sensors so as to enable the vehicle-mounted sensors to generate feedback signals; the acquisition and measurement module is used for acquiring signals output by the vehicle-mounted sensor and the sensor control module; and the platform control module is also used for processing to obtain an actual distance and speed measuring result and a theoretical distance and speed measuring result. The simulation integration test platform can adapt to various sensor systems, and is high in integration degree and convenient to use.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a simulation integration test platform and a test method for a vehicle-mounted signal system.
Background
With the continuous progress of rail transit technical equipment, the perception means of the vehicle-mounted signal system on the position, the distance and the speed is more and more abundant. The novel train control vehicle-mounted signal system integrates a traditional speed sensor, an acceleration sensor, various sensors such as radar, inertial navigation and GNSS. However, in the conventional test simulation system, there is a limit to cope with various types of sensors. Meanwhile, the output of each module of the test simulation system is dispersed, so that the test simulation systems are not closely connected.
Therefore, it is necessary to design a test simulation system that can cope with various types of sensors and has high integration level.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a simulation integration test platform for a vehicle-mounted signal system, which can adapt to various sensor systems, and is high in integration degree and convenient to use.
In order to achieve the above and other related objects, the present invention provides a simulation integrated test platform for a vehicle-mounted signal system, which is used for performing simulation test on the vehicle-mounted signal system, wherein the vehicle-mounted signal system comprises a plurality of vehicle-mounted sensors, and performs distance measurement and speed measurement during train operation according to feedback signals of the plurality of vehicle-mounted sensors, and the simulation integrated test platform comprises a control interface, a platform control module, a sensor control module and a collection and measurement module;
the control interface is used for setting a control command for the train and sending the control command to the platform control module;
the platform control module is used for processing the control command into an action instruction and sending the action instruction to the sensor control module;
the sensor control module is connected with the vehicle-mounted signal system and used for generating a plurality of analog signals according to the action instructions, the analog signals are used for simulating the running of a train and respectively output the analog signals to the corresponding vehicle-mounted sensors so as to enable the vehicle-mounted sensors to generate feedback signals;
the acquisition and measurement module is used for acquiring signals output by the vehicle-mounted sensor and the sensor control module;
and the platform control module is also used for processing the signals collected by the collecting and measuring module to obtain an actual distance and speed measuring result and a theoretical distance and speed measuring result.
Further, the control interface is specifically configured to set an on-board sensor configuration, where the on-board sensor configuration includes a type of an on-board sensor and a number of different types of on-board sensors.
Further, the control interface is further configured to set a fault scenario, where the fault scenario includes a fault occurring at one or more vehicle-mounted sensors at a certain time point.
Further, the control interface is further configured to display the actual distance and speed measurement result and the theoretical distance and speed measurement result.
Further, the platform control module is also used for being in communication connection with the ground trackside simulator so as to acquire the train line condition.
Further, the plurality of onboard sensors includes a speed sensor, an acceleration sensor, a radar system, a GNSS system, and an inertial navigation system.
Further, the sensor control module comprises a sensor control processor, a speed signal generator, an acceleration signal generator, a radar signal generator, a GNSS analog generator and an inertial navigation analog generator;
the sensor control processor is used for receiving the action instruction, enabling the speed signal generator, the acceleration signal generator, the radar signal generator, the GNSS analog generator and the inertial navigation analog generator to respectively generate a speed analog signal, an acceleration analog signal, a speed measuring radar signal, a satellite positioning data signal and an inertial navigation data signal according to the action instruction, and respectively outputting the speed analog signal, the acceleration analog signal, the speed measuring radar signal, the satellite positioning data signal and the inertial navigation data signal to the speed sensor, the acceleration sensor, the radar system, the GNSS system and the inertial navigation system.
Furthermore, the sensor control module further comprises an output control unit, and the output control unit is used for respectively controlling the on-off of the outputs of the speed signal generator, the acceleration signal generator, the radar signal generator, the GNSS analog generator and the inertial navigation analog generator.
Furthermore, the sensor control module is also used for connecting a rotating platform, a real speed sensor is arranged in the rotating platform, the sensor control module drives the rotating platform to rotate, so that the real speed sensor generates a feedback signal, and the acquisition and measurement module acquires a signal output by the real speed sensor and displays the signal on the control interface.
Based on the same invention concept, the invention also provides a simulation integration test method for the vehicle-mounted signal system, which is realized by adopting any one of the simulation integration test platforms for the vehicle-mounted signal system, and comprises the following steps:
s1, setting a control instruction for the train on the simulation integrated test platform, and generating a simulation signal for simulating the train operation based on the control instruction;
s2, transmitting the analog signals to various vehicle-mounted sensors in the train to enable the various vehicle-mounted sensors to generate feedback signals;
s3, the simulation integration test platform acquires the signal output by the vehicle-mounted sensor and the analog signal, and processes the signal to obtain an actual distance and speed measurement result and a theoretical distance and speed measurement result;
and S4, comparing the actual distance and speed measurement result with the theoretical distance and speed measurement result, if the actual distance and speed measurement result and the theoretical distance and speed measurement result are consistent, the vehicle-mounted signal system has no fault, and if the actual distance and speed measurement result and the theoretical distance and speed measurement result are inconsistent, the vehicle-mounted signal system has a fault.
In summary, the invention provides a simulation integration test platform, which is adaptable to various sensor systems, has high integration degree, can complete fusion test of various speed and distance measuring sensors of a vehicle-mounted system by only one platform, and improves test efficiency.
Drawings
Fig. 1 is a schematic diagram of a simulation integrated test platform for a vehicle-mounted signal system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a sensor control module in a simulation integrated test platform for a vehicle-mounted signal system according to an embodiment of the present invention;
fig. 3 is a schematic view of a testing process of the simulation integrated test platform for the vehicle-mounted signal system in a testing scenario according to an embodiment of the present invention;
fig. 4 is a schematic view of a testing process of the simulation integrated test platform for the vehicle-mounted signal system in another testing scenario according to an embodiment of the present invention;
fig. 5 is a schematic view of a testing process of the simulation integrated test platform for the vehicle-mounted signal system in another testing scenario according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a test waveform of the simulation integrated test platform for the vehicle-mounted signal system in the test scenario shown in fig. 5 according to an embodiment of the present invention.
Wherein the reference numerals are as follows:
1 a-a control interface; 1 b-a platform control module; 1 c-a sensor control module; 1 d-collecting and measuring module; 1 e-a ground trackside simulator; 1 f-rotating table; 1 g-vehicle carried signal system; 2 a-a sensor control processor; 2 b-a speed signal generator; 2 c-an acceleration signal generator; 2 d-a radar signal generator; 2 e-a GNSS simulation generator; 2 f-inertial navigation simulation generator; 2 g-output control unit; 2 h-external speed signaling unit.
Detailed Description
The following describes the simulation integrated test platform for vehicle-mounted signal system according to the present invention in further detail with reference to fig. 1 to 6 and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Referring to fig. 1, an embodiment of the present invention provides a simulation integrated test platform for a vehicle-mounted signal system, where the simulation integrated test platform is used to simulate train operation, generate a simulation signal and output the simulation signal to a vehicle-mounted signal system 1g, so that the vehicle-mounted signal system 1g generates a real distance and speed measurement result; and a theoretical distance and speed measurement result generated by the analog signal is used as a judgment value, if the real distance and speed measurement result is consistent with the theoretical distance and speed measurement result, the vehicle-mounted signal system 1g is considered to be safe and faultless, and if the real distance and speed measurement result is inconsistent with the theoretical distance and speed measurement result, the vehicle-mounted signal system is considered to be faulted. The test of the on-board signal system 1g is mainly a test of the various on-board sensors it comprises. As shown in fig. 1, the simulation integrated test platform includes a control interface 1a, a platform control module 1b, a sensor control module 1c, and a collection and measurement module 1 d.
The control interface 1a is configured to set and output a control instruction for a train, where the control instruction includes: the train starts to accelerate from a standstill and the acceleration is 1m/s2. And the platform control module 1b is used for processing the control command into an action instruction and sending the action instruction to the sensor control module. The sensor control module 1c is configured to generate a plurality of analog signals according to the action command, where the analog signals are used for simulating train operation, and the analog signals are, for example: the running speed of the train after 10s is 10m/s, and the acceleration during acceleration is 1m/s2And outputting the plurality of analog signals to corresponding vehicle-mounted sensors respectively to enable the vehicle-mounted sensors to generate feedback signals, for example, outputting speed analog signals of 10m/s of train running speed to a speed sensor and outputting 1m/s of train running speed to a speed sensor2To the acceleration sensor so that the corresponding vehicle-mounted sensors (speed sensor and acceleration sensor) generate feedback signals. And the acquisition and measurement module 1d is used for acquiring signals output by the vehicle-mounted sensor and the sensor control module. The platform control module 1a is further configured to process the signals collected by the collection and measurement module to obtain an actual distance and speed measurement result and a theoretical distance and speed measurement result. The simulation integration test platform can adapt to various sensor systems, is high in integration degree, can complete fusion test of various speed and distance measuring sensors of a vehicle-mounted system by only one platform, and improves test efficiency.
In this embodiment, aiming at the problem that the simulation test system in the prior art cannot uniformly complete different sensor configurations and fault scene settings for different vehicle-mounted signal systems and different fault test scenes, the control interface 1a provided by the present invention can also be used for setting the vehicle-mounted sensor configurations and the fault scenes, the simulation integrated test platform provided by the present invention can be simultaneously connected with a plurality of different types of sensors, and the construction of different vehicle-mounted signal systems can be completed if necessary, for example, 4-way speed sensors and 4-way acceleration sensors can be simultaneously connected, when the vehicle-mounted sensor configuration is set on the control interface 1a, for example, if a vehicle-mounted signal system including two speed sensors and one acceleration sensor is to be constructed, the configuration can be input on the control interface 1a, and then the simulation integrated test platform communicates the two speed sensors, the other two are disconnected, one acceleration sensor is communicated, and the other three are disconnected. The fault scenario is that a certain one or more vehicle-mounted sensors at a certain time point have a fault, for example, under the sensor configuration, when one of the speed sensors has a fault after the train runs for 10s, the fault scenario can be input to the control interface 1a, so that the time node in the simulation process has the fault. In addition, the control interface 1a is further configured to display the actual distance and speed measurement result and the theoretical distance and speed measurement result.
In this embodiment, aiming at the problem that the prior art cannot be linked with a scene to inject a fault in a fault test, the prior test platform can only simply simulate scenes such as idling and slipping, and cannot realize linkage with actual line data, the inventor finds that the platform control module 1b can be in communication connection with a ground trackside simulator to acquire the train line condition.
In this embodiment, for the test platform in the prior art, only the traditional speed sensor and acceleration sensor simulation is available, the simulation output of the multi-mode sensor integrating radar, inertial navigation, GNSS and the like is lacking, and for the sensors of multiple systems including GNSS, inertial navigation and the like, only the independent simulation module is available, but the sensors are not really integrated into an integrated platform for management. The inventor researches and discovers that various types of sensors can be integrated into the simulation integrated test platform on the premise of acquiring the train line condition. For example, the plurality of onboard sensors may include a speed sensor, an acceleration sensor, a radar system, a GNSS system, and an inertial navigation system. Of course, those skilled in the art will appreciate that the type of sensor is not so limited.
In the present embodiment, referring to fig. 2, in order to cooperate with various types of sensors, the sensor control module 1c generally includes a sensor control processor 2a, a speed signal generator 2b, an acceleration signal generator 2c, a radar signal generator 2d, a GNSS simulation generator 2e, and an inertial navigation simulation generator 2 f; the sensor control processor 2a is configured to receive the action instruction, and control the speed signal generator 2b, the acceleration signal generator 2c, the radar signal generator 2d, the GNSS simulation generator 2e, and the inertial navigation simulation generator 2f to generate a speed simulation signal, an acceleration simulation signal, a speed measurement radar signal, a satellite positioning data signal, and an inertial navigation data signal, respectively, according to the action instruction, and output the speed simulation signal, the acceleration simulation signal, the radar system, the GNSS system, and the inertial navigation system, respectively.
In this embodiment, the sensor control module 1c may further control output on/off to simulate a disconnection scene, as shown in fig. 2, the sensor control module 1c further includes an output control unit 2g, and the output control unit 2g is configured to control on/off of outputs of the speed signal generator 2b, the acceleration signal generator 2c, the radar signal generator 2d, the GNSS analog generator 2e, and the inertial navigation analog generator 2f, respectively.
In this embodiment, because according to different characteristics of the requirements of the tested object, sometimes a real speed sensor is required to be used to perform a test in cooperation with a rotating platform, sometimes a special scene is required to be simulated by using an analog input signal, the difference between hardware used in the two types of tests is large, the existing test platform cannot uniformly use one set of environment, and cannot conveniently switch signals of the real speed sensor and the analog speed sensor, the inventor finds that the simulation integrated test platform provided by the present invention is also used for connecting the rotating platform 1f, the rotating platform 1f is provided with a real speed sensor, the sensor control module 1c drives the rotating platform to rotate, so that the real speed sensor generates a feedback signal, and the acquisition and measurement module 1d acquires the signal output by the real speed sensor and displays the signal on the control interface 1 a. For the purpose of complement, as shown in fig. 2, the sensor control module 1c further comprises an external speed signal unit 2h, the external speed signal unit 2h is used for connecting the rotary table 1f to access signals generated by the external rotary table and the real speed transmission.
Based on the same invention conception, the invention also provides a simulation integration test method for the vehicle-mounted signal system, which comprises the following steps:
s1, setting a control instruction for the train on the simulation integrated test platform, and generating a simulation signal for simulating the train operation based on the control instruction;
s2, transmitting the analog signals to various vehicle-mounted sensors in the train to enable the various vehicle-mounted sensors to generate feedback signals;
s3, the simulation integration test platform acquires the signal output by the vehicle-mounted sensor and the analog signal, and processes the signal to obtain an actual distance and speed measurement result and a theoretical distance and speed measurement result;
and S4, comparing the actual distance and speed measurement result with the theoretical distance and speed measurement result, if the actual distance and speed measurement result and the theoretical distance and speed measurement result are consistent, the vehicle-mounted signal system has no fault, and if the actual distance and speed measurement result and the theoretical distance and speed measurement result are inconsistent, the vehicle-mounted signal system has a fault.
Finally, the inventor performs three groups of tests on the simulation integration test platform provided by the invention, and different vehicle-mounted sensor configurations and fault scenes are respectively set in the tests.
The method comprises the steps of firstly, constructing a CTCS-2 level vehicle-mounted signal system, wherein a fault scene is that whether 1 speed sensor has faults or not is inconsistent with other speed sensors in the deceleration process of a train, and finally, whether the faults occur through a responder or not is judged when the faults completely fail.
As shown in fig. 3, the method comprises the following steps:
s3.1: and setting a CTCS-2 level vehicle-mounted signal system configuration on the control interface 1a, for example, using 2 speed sensors, 1 acceleration sensor and 1 radar, and configuring characteristic parameters of each sensor.
S3.2: the platform control module 1b receives the instruction, and controls the output control module 2g in the sensor control module 1c to access the corresponding sensor according to the setting requirement.
S3.3: setting a test scene, namely a control command, on the control interface 1a, setting an initial position of 0m, setting a transponder after 1000m, and setting an initial acceleration of 0.6m/s2After the target speed is 40km/h and 900m, the speed sensor 1 is in failure, and the output speed is reduced to 0km/h within 5 s.
S3.4: and starting the vehicle-mounted signal system and setting the vehicle-mounted signal system to be in a state to be tested.
S3.5: and the control interface 1a clicks to start testing and sends a control command to the platform control module 1 b.
S3.6: after receiving the command, the platform control module 1b sends an action instruction to the sensor control module 1c to control each output to be 0.6m/s2The acceleration is accelerated to 40 km/h.
S3.7: the platform control module 1b calculates real-time speed and position, and sends an action instruction to the sensor control module 1c when the position deviation reaches 900m, so as to control the output speed of the speed sensor 1 to decelerate to 0 at an acceleration of-2.22 m/s 2.
S3.8: the output conditions of each sensor can be seen in real time through the control interface 1a, and the output conditions comprise real distance and speed measurement results and theoretical distance and speed measurement results. Whether the use case passes or not is verified through the vehicle-mounted reaction.
And a second test is carried out to test whether the positioning function can be continuously finished after the GNSS positioning error of the CTCS-N level vehicle-mounted signal system is gradually increased in the operation process.
As shown in fig. 4, the method comprises the following steps:
s4.1: and setting CTCS-N level system configuration on a control interface, for example, using 3 speed sensors, 1 acceleration sensor, a GNSS system comprising 3 GNSS receivers, and configuring characteristic parameters of each sensor.
S4.2: the platform control module 1b receives the command, and controls the output control module 2g in the sensor control module 1c to access the corresponding sensor according to the setting requirement.
S4.3: setting a test scene on the control interface 1a, and importing an electronic map file obtained by a ground trackside simulator; setting an initial position of 0m and an initial acceleration of 0.6m/s2The target speed is 20 km/h; after running 1000m, setting the GNSS vertical positioning deviation to be unchanged, wherein the horizontal positioning deviation diverges from 0m at the speed of 2m/s, the divergence direction is random, and the GNSS vertical positioning deviation stops after diverging to 500 m.
S4.4: and starting the vehicle-mounted signal system and setting the vehicle-mounted signal system to be in a state to be tested.
S4.5: and the control interface 1a clicks to start testing and sends a testing command to the platform control module.
S4.6: after receiving the command, the platform control module 1b sends an instruction to the sensor control module 1c to control each output to be 0.6m/s2The acceleration is accelerated to 40 km/h. The platform control module 1b calculates the course angle and longitude and latitude parameters by calculating the displacement and direction and matching with the data in the electronic map, and controls the sensor control module 1c to control the corresponding GNSS receiver to output.
S4.7: the platform control module 1b calculates real-time speed and position, and after the position offset reaches 1000m, performs divergent offset in a random yaw direction in the calculated longitude and latitude parameters, and simultaneously sends an instruction to the sensor control module 1c to control the GNSS receiver to output an offset signal.
S4.8: the offset distance and course angle information of each path of GNSS can be seen in real time through the control interface 1a, and the offset distance and course angle information comprises a real distance measurement and speed measurement result and a theoretical distance measurement and speed measurement result.
And thirdly, testing the quality of the output signal of the real speed sensor.
Referring to fig. 5, the following steps are included:
s5.1: the rotating platform 1f is connected into a test platform, and the rotating platform 1f comprises the real speed sensor;
s5.2: a speed transmission verification test is set on the control interface 1a, and the characteristic parameters of the real speed sensor are configured, in this embodiment, the parameters are configured as symmetrical output hall sensors, 200 teeth, and a default wheel diameter value of 1050 mm.
S5.3: and loading a real speed sensor verification test case from the control interface 1a, outputting a waveform of the case as shown in fig. 6, and testing the output stability of the real speed sensor under forward rotation and reverse rotation conditions through different acceleration and deceleration.
S5.4: the acquisition and measurement module 1d acquires waveform parameters and sends the waveform parameters to the platform control module 1b for processing, and the platform control module 1b sends measurement results to a control interface in real time for displaying and recording after testing.
In the above three experimental embodiments, only 2 speed and distance measurement simulation methods used in a typical vehicle-mounted system are described, the present invention can adapt to different configuration situations, not only limited to the above 2 situations, but also the corresponding configuration changes and replacements do not affect the spirit and technical scope essence shown in the present invention.
The simulation integration test platform has the advantages that the simulation integration test platform is suitable for various sensor systems, the integration degree is high, the fusion test of various speed and distance measuring sensors of a vehicle-mounted system can be completed only by one platform, and the test efficiency is improved; further, the simulation integrated test platform supports inertial navigation and GNSS positioning signal output; furthermore, the simulation integrated test platform can realize the test of multiple types of multi-channel sensor composite fault scenes; furthermore, the simulation integrated test platform can be linked with a trackside environment to realize an interactive test of an actual scene; finally, the simulation integrated test platform can verify the output characteristics of the real speed sensor.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. A simulation integrated test platform for a vehicle-mounted signal system is used for carrying out simulation test on the vehicle-mounted signal system, the vehicle-mounted signal system comprises a plurality of vehicle-mounted sensors, and distance measurement and speed measurement are carried out when a train runs through feedback signals of the plurality of vehicle-mounted sensors, and the simulation integrated test platform is characterized by comprising a control interface, a platform control module, a sensor control module and a collection and measurement module;
the control interface is used for setting a control command for the train and sending the control command to the platform control module;
the platform control module is used for processing the control command into an action instruction and sending the action instruction to the sensor control module;
the sensor control module is connected with the vehicle-mounted signal system and used for generating a plurality of analog signals according to the action instructions, the analog signals are used for simulating the running of a train and respectively output the analog signals to the corresponding vehicle-mounted sensors so as to enable the vehicle-mounted sensors to generate feedback signals;
the acquisition and measurement module is used for acquiring signals output by the vehicle-mounted sensor and the sensor control module;
and the platform control module is also used for processing the signals collected by the collecting and measuring module to obtain an actual distance and speed measuring result and a theoretical distance and speed measuring result.
2. The simulation integration test platform for the vehicle-mounted signal system as claimed in claim 1, wherein the control interface is specifically configured to set a vehicle-mounted sensor configuration, and the vehicle-mounted sensor configuration includes a type of the vehicle-mounted sensor and a number of different types of the vehicle-mounted sensor.
3. The simulation integration test platform for the vehicle-mounted signal system according to claim 1, wherein the control interface is further configured to set a fault scenario, and the fault scenario includes a fault occurring at one or more vehicle-mounted sensors at a certain time point.
4. The simulation integrated test platform for the vehicle-mounted signal system according to claim 1, wherein the control interface is further configured to display the actual distance measurement and speed measurement result and the theoretical distance measurement and speed measurement result.
5. The simulation integrated test platform for the vehicle-mounted signal system according to claim 1, wherein the platform control module is further configured to be in communication connection with a ground trackside simulator to obtain train line conditions.
6. The simulated integrated test platform for vehicle signal system according to claim 5, wherein said plurality of vehicle sensors comprises a speed sensor, an acceleration sensor, a radar system, a GNSS system and an inertial navigation system.
7. The simulation integration test platform for the vehicle-mounted signal system according to claim 6, wherein the sensor control module comprises a sensor control processor, a speed signal generator, an acceleration signal generator, a radar signal generator, a GNSS simulation generator and an inertial navigation simulation generator;
the sensor control processor is used for receiving the action instruction, enabling the speed signal generator, the acceleration signal generator, the radar signal generator, the GNSS analog generator and the inertial navigation analog generator to respectively generate a speed analog signal, an acceleration analog signal, a speed measuring radar signal, a satellite positioning data signal and an inertial navigation data signal according to the action instruction, and respectively outputting the speed analog signal, the acceleration analog signal, the speed measuring radar signal, the satellite positioning data signal and the inertial navigation data signal to the speed sensor, the acceleration sensor, the radar system, the GNSS system and the inertial navigation system.
8. The simulation integrated test platform for the vehicle-mounted signal system according to claim 7, wherein the sensor control module further comprises an output control unit, and the output control unit is used for controlling the on-off of the outputs of the speed signal generator, the acceleration signal generator, the radar signal generator, the GNSS analog generator and the inertial navigation analog generator respectively.
9. The simulation integrated test platform for the vehicle-mounted signal system according to claim 1, wherein the sensor control module is further configured to connect to a rotating platform, a real speed sensor is disposed in the rotating platform, the sensor control module drives the rotating platform to rotate, so that the real speed sensor generates a feedback signal, and the collecting and measuring module collects a signal output by the real speed sensor and displays the signal on the control interface.
10. A simulation integration test method for a vehicle-mounted signal system, which is implemented by using the simulation integration test platform for a vehicle-mounted signal system according to any one of claims 1 to 9, and comprises the following steps:
s1, setting a control command for the train on the simulation integrated test platform, and generating a simulation signal for simulating the train operation based on the control command;
s2, transmitting the analog signals to various vehicle-mounted sensors in the train to enable the various vehicle-mounted sensors to generate feedback signals;
s3, the simulation integration test platform acquires the signal output by the vehicle-mounted sensor and the analog signal, and processes the signal to obtain an actual distance and speed measurement result and a theoretical distance and speed measurement result;
and S4, comparing the actual distance and speed measurement result with the theoretical distance and speed measurement result, if the actual distance and speed measurement result and the theoretical distance and speed measurement result are consistent, the vehicle-mounted signal system has no fault, and if the actual distance and speed measurement result and the theoretical distance and speed measurement result are inconsistent, the vehicle-mounted signal system has a fault.
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