CN117148738A - Simulation test system for vehicle-mounted controller of operation control system - Google Patents
Simulation test system for vehicle-mounted controller of operation control system Download PDFInfo
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- CN117148738A CN117148738A CN202310874345.9A CN202310874345A CN117148738A CN 117148738 A CN117148738 A CN 117148738A CN 202310874345 A CN202310874345 A CN 202310874345A CN 117148738 A CN117148738 A CN 117148738A
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- 238000012360 testing method Methods 0.000 title claims abstract description 76
- 238000004088 simulation Methods 0.000 title claims abstract description 64
- 238000002347 injection Methods 0.000 claims abstract description 27
- 239000007924 injection Substances 0.000 claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 claims abstract description 21
- 230000003993 interaction Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000004378 air conditioning Methods 0.000 claims description 3
- 238000012512 characterization method Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
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- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
- G05B17/02—Systems involving the use of models or simulators of said systems electric
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Abstract
The invention provides a simulation test system for an on-board controller of a transportation and control system. Comprising the following steps: the system comprises an operation control system peripheral environment unit, a BST simulation test and fault injection platform, a Network Time Protocol (NTP) time service server and a power supply system; the peripheral environment unit of the operation control system is used for describing the state change inside the vehicle-mounted equipment and the information interaction condition with the external connection in the operation process; the BST simulation test and fault injection platform tests simulation and fault injection functions in actual equipment; the NTP time service server provides a trusted time reference standard for data acquisition and fault injection of the operation control system. The invention can provide a fault test and simulation platform for the vehicle-mounted controller, which integrates real-time simulation, realistic simulation of fault operation behavior and random fault test for the operation control system.
Description
Technical Field
The invention relates to the technical field of simulation test of vehicle-mounted equipment, in particular to a simulation test system of a vehicle-mounted controller of a transportation and control system.
Background
The operation control system is used as technical equipment for train operation control, safety protection and dispatching command, the safety is particularly important, the on-site complexity and the specificity make the verification of the redundancy mechanism of the operation control system difficult, the verification of the correctness of the system function is greatly challenged, and once any fault or potential safety hazard of the operation control system cannot be diagnosed in real time and can be processed timely and correctly, the linkage accident can be possibly caused, so that the train is forced to stop, and even life and property safety is lost.
Therefore, the research of constructing a fault test and verification platform of the train operation control system is developed, and the method has important significance for improving the safe operation level of the train operation control system and even the whole train. The vehicle-mounted controller (BST) serves as core equipment of a train operation control system and plays a key role in controlling command driving amplification, logic operation and collecting train state information, so that a real-time simulation platform for testing and verifying faults of the vehicle-mounted controller of the operation control system integrating real-time simulation, realistic fault operation behavior simulation and random fault test of a train is a problem to be solved urgently.
Disclosure of Invention
The embodiment of the invention provides a simulation test system for a vehicle-mounted controller of a train control system, which is used for effectively improving the test efficiency of the train control system.
In order to achieve the above purpose, the present invention adopts the following technical scheme.
An on-board controller simulation test system of a transportation control system, comprising: the system comprises an operation control system peripheral environment unit, a BST simulation test and fault injection platform, a Network Time Protocol (NTP) time service server and a power supply system;
the peripheral environment unit of the operation control system is used for describing the state change inside the vehicle-mounted equipment and the information interaction condition with the external connection in the operation process;
the BST simulation test and fault injection platform is used as a carrier for fault injection test of the operation control system to test simulation and fault injection functions in actual equipment;
the NTP time service server is used for keeping the clocks of all the boards consistent and providing a credible time reference standard for data acquisition and fault injection of the operation control system;
the power supply system is used for supplying power to the whole test system.
Preferably, the peripheral environment unit of the operation control system comprises a speed measuring and positioning system module and a vehicle-mounted equipment module;
the speed measuring and positioning system module is used for providing position and direction information for safe and reliable operation of a vehicle model and closed-loop control of a traction model, the relative position sensor module detects the position of a train, tooth slot counting is carried out by using long stator information on a line model, secondary position detection of a synchronous linear motor for train traction is realized, and an absolute position sensor reads coded plate information of mileage position codes in the line module and determines absolute mileage information of the train;
the vehicle-mounted equipment module is used for comprising a vehicle door module, an air conditioning module, a vehicle-mounted power supply module, a suspension guide module and a brake system module, and on the basis of the simulation module, the operation scene of the speed measurement positioning system and the vehicle-mounted controller fault characterization module is established according to different scene working conditions, so that a simulation environment and a fault environment are provided for the operation control system.
Preferably, the BST simulation test and fault injection platform comprises a main control unit, an IO input board card, an IO output board card and a BST test interaction interface;
the main control unit is used for operating the peripheral environment module of the operation control system, receiving the IO data transmitted by all the IO input board cards, processing and displaying information of the IO data, transmitting the processed IO data to the IO output board cards and sending the IO data to the operation control system;
the IO input board card is used for acquiring IO data according to a control instruction function issued by the vehicle body stability control system VSC and transmitting the acquired IO data to the main control unit;
the IO output board card is used for realizing the function of outputting the BST state signal of the train and transmitting IO data transmitted by the main control unit to the operation control system;
the BST test interaction interface is used for achieving the functions of issuing fault control instructions, judging and displaying fault types and displaying state information of vehicle-mounted equipment.
Preferably, when the VSC-BST data link is not enabled, the BST simulation test and fault injection platform judges whether the VSC is normal or not by simulating BST between the VSC-BST links; judging whether the BST is normal or not by simulating the VSC, so as to judge the fault position;
when the VSC-BST data link is normal, the BST data simulation test system is used for monitoring the communication condition of the VSC-BST link, and realizing the functions of receiving and transmitting multi-channel data, monitoring I/O channels, recording and storing and counting communication errors in the test process.
Preferably, when the BST environment is missing, a peripheral environment unit of the operation control system in the vehicle-mounted controller simulation test system of the operation control system automatically generates a BST signal, and train simulation operation simulation is carried out by matching with the VSC.
According to the technical scheme provided by the embodiment of the invention, through the fusion of mathematical modeling and testing technology, the speed measurement positioning and simulation model and fault model of the vehicle-mounted equipment facing the peripheral environment of the operation control system are established based on different scenes of the train, and the fault testing and simulation platform of the vehicle-mounted controller which can provide real-time simulation, realistic simulation of fault operation behavior and random fault test for the operation control system is established.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a relationship structure between modules of a simulation test system for an on-board controller of a control system according to an embodiment of the present invention.
Fig. 2 is a block diagram of a BST simulation test and fault injection platform according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
For the purpose of facilitating an understanding of the embodiments of the invention, reference will now be made to the drawings of several specific embodiments illustrated in the drawings and in no way should be taken to limit the embodiments of the invention.
Aiming at the inconvenience of the real vehicle test of the operation control system, the invention provides a vehicle-mounted controller test system for the operation control system test, which realizes the fault test and simulation verification of the operation control system for the vehicle-mounted controller of the vehicle-mounted equipment.
The structural schematic diagram of the simulation test system of the vehicle-mounted controller of the operation control system provided by the embodiment of the invention is shown in fig. 1, and the simulation test system comprises: the system comprises an operation control system peripheral environment unit, a BST simulation test and fault injection platform, an NTP (Network Time Protocol ) time service server and a power supply system.
The peripheral environment unit of the operation control system comprises a speed measuring and positioning system module and a vehicle-mounted equipment module, wherein the speed measuring and positioning system module comprises a relative position sensor module and an absolute position sensor module, and the vehicle-mounted equipment module comprises a vehicle door module, an air conditioning module, a vehicle-mounted power supply module, a suspension guiding module and a braking system module.
The peripheral environment unit of the operation control system is used for providing vehicle position information and vehicle-mounted equipment information for the vehicle operation control system; and modeling the operation scene of the speed measurement positioning system module and the vehicle-mounted equipment module, so that the speed measurement positioning system module and the vehicle-mounted equipment module can describe the state change inside the vehicle-mounted equipment and the information interaction condition with external connection in detail in the operation process.
The speed measuring and positioning system module is used for providing necessary information such as position and direction for safe and reliable operation of a vehicle model and closed-loop control of a traction model, and ensuring realization of functions such as train operation management, fixed-point parking and regional power supply; the relative position sensor module can detect the position of the train, the long stator information on the line model is utilized to count tooth grooves, the secondary position detection of the synchronous linear motor for train traction is realized, and the absolute position sensor can read in coded plate information of mileage position codes in the line module to determine the absolute mileage information of the train.
The vehicle-mounted equipment module is used for establishing a peripheral environment of the vehicle-mounted equipment in order to meet the requirements of automatic switching of sub-scenes and automation of vehicle-mounted equipment testing, and comprises a dynamics module, a line module and a traction power supply module of the vehicle; on the basis of the simulation module, the operation scene of the speed measuring and positioning system and the fault characterization module of the vehicle-mounted controller is established according to different scene working conditions, so that a simulation environment and a fault environment which are very similar to the real operation environment are provided for the operation control system.
The structure of the BST simulation test and fault injection platform provided by the embodiment of the invention is shown in fig. 2, and the BST simulation test and fault injection platform is used as a carrier for fault injection test of the operation control system, and is used for carrying out simulation and fault injection function test in actual equipment by combining test cases generated by peripheral environment modules of the operation control system.
The BST simulation test and fault injection platform comprises a main control unit, an IO input board card, an IO output board card and a BST test interaction interface.
The main control unit is used for operating the peripheral environment module of the operation control system, receiving the IO data transmitted by all the IO input board cards, processing and displaying information of the IO data, transmitting the processed IO data to the IO output board cards and sending the IO data to the operation control system;
the IO input board card is used for acquiring IO data according to a control instruction function issued by a VSC (Vehicle Safety Computer, vehicle-mounted safety computer) and transmitting the acquired IO data to the main control unit;
the IO output board card is used for realizing the function of outputting the BST state signal of the train and transmitting IO data transmitted by the main control unit to the operation control system;
the BST test interaction interface is used for achieving functions of issuing fault control instructions, judging and displaying fault types, displaying state information of vehicle-mounted equipment and the like;
the NTP time service server is used for carrying out clock synchronization among a plurality of devices, so that the clocks of all the boards are kept consistent, and a trusted time reference standard is provided for data acquisition and fault injection of the operation control system; the clock source of the NTP server is the real-time clock in the Beidou positioning system and the microcontroller, the functions of automatically switching the clock source and losing the power-down clock by software are achieved, and the test of the operation control equipment in different application scenes is met.
The power supply system is used for supplying power to the speed measuring and positioning testing system of the operation control system and has a short-circuit overcurrent protection function; the power supply system comprises a power supply and a backboard; the power supply converts the commercial power into 24V direct current required by the backboard, and the backboard provides 24V and 5V voltage stabilizing output.
When the VSC-BST data link is not enabled, the BST simulation test and fault injection platform can be used between the VSC-BST links to judge whether the VSC is normal or not through simulating the BST; similarly, the platform can determine whether the BST is normal by simulating the VSC, thereby determining the fault location. When the VSC-BST data link is normal, the BST data simulation test system can be used for monitoring the communication condition of the VSC-BST link, and the functions of receiving and transmitting multi-channel data, monitoring I/O channels, recording and storing, counting communication errors and the like in the test process are realized.
When the BST environment is absent, the peripheral environment unit of the operation control system in the vehicle-mounted controller simulation test system of the operation control system automatically generates a BST signal, and the operation control system cooperates with the VSC to simulate train simulation operation.
In summary, the embodiment of the invention provides an automatic test system based on the semi-physical simulation mode and the software module automatic test technology, which has the advantages of strong pertinence, light body weight, cross-platform, good usability and higher automation degree, effectively improves the test efficiency of the operation control system, lightens the workload of engineering testers, shortens the test period and improves the test quality.
According to the invention, through the fusion of mathematical modeling and testing technology, a simulation model and a fault model of speed measurement positioning and vehicle-mounted equipment facing the peripheral environment of the operation control system are established based on different scenes of a train, and a fault testing and simulation platform of the vehicle-mounted controller, which can provide real-time simulation, realistic simulation of fault operation behavior and random fault testing for the operation control system, is established.
Those of ordinary skill in the art will appreciate that: the drawing is a schematic diagram of one embodiment and the modules or flows in the drawing are not necessarily required to practice the invention.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, with reference to the description of method embodiments in part. The apparatus and system embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (5)
1. An on-vehicle controller simulation test system of fortune accuse system, characterized by comprising: the system comprises an operation control system peripheral environment unit, a BST simulation test and fault injection platform, a Network Time Protocol (NTP) time service server and a power supply system;
the peripheral environment unit of the operation control system is used for describing the state change inside the vehicle-mounted equipment and the information interaction condition with the external connection in the operation process;
the BST simulation test and fault injection platform is used as a carrier for fault injection test of the operation control system to test simulation and fault injection functions in actual equipment;
the NTP time service server is used for keeping the clocks of all the boards consistent and providing a credible time reference standard for data acquisition and fault injection of the operation control system;
the power supply system is used for supplying power to the whole test system.
2. The system of claim 1, wherein the operation control system peripheral environment unit comprises a speed measurement positioning system module and a vehicle-mounted equipment module;
the speed measuring and positioning system module is used for providing position and direction information for safe and reliable operation of a vehicle model and closed-loop control of a traction model, the relative position sensor module detects the position of a train, tooth slot counting is carried out by using long stator information on a line model, secondary position detection of a synchronous linear motor for train traction is realized, and an absolute position sensor reads coded plate information of mileage position codes in the line module and determines absolute mileage information of the train;
the vehicle-mounted equipment module is used for comprising a vehicle door module, an air conditioning module, a vehicle-mounted power supply module, a suspension guide module and a brake system module, and on the basis of the simulation module, the operation scene of the speed measurement positioning system and the vehicle-mounted controller fault characterization module is established according to different scene working conditions, so that a simulation environment and a fault environment are provided for the operation control system.
3. The system of claim 2, wherein the BST simulation test and fault injection platform comprises a master control unit, an IO input board card, an IO output board card, and a BST test interaction interface;
the main control unit is used for operating the peripheral environment module of the operation control system, receiving the IO data transmitted by all the IO input board cards, processing and displaying information of the IO data, transmitting the processed IO data to the IO output board cards and sending the IO data to the operation control system;
the IO input board card is used for acquiring IO data according to a control instruction function issued by the vehicle body stability control system VSC and transmitting the acquired IO data to the main control unit;
the IO output board card is used for realizing the function of outputting the BST state signal of the train and transmitting IO data transmitted by the main control unit to the operation control system;
the BST test interaction interface is used for achieving the functions of issuing fault control instructions, judging and displaying fault types and displaying state information of vehicle-mounted equipment.
4. A system according to claim 3, wherein the BST simulation test and fault injection platform determines whether the VSC is normal by simulating BST between VSC-BST links when the VSC-BST data links are not on; judging whether the BST is normal or not by simulating the VSC, so as to judge the fault position;
when the VSC-BST data link is normal, the BST data simulation test system is used for monitoring the communication condition of the VSC-BST link, and realizing the functions of receiving and transmitting multi-channel data, monitoring I/O channels, recording and storing and counting communication errors in the test process.
5. The system according to any one of claims 1 to 4, wherein, when the BST environment is absent, the operation control system peripheral environment unit in the operation control system in-vehicle controller simulation test system automatically generates a BST signal, and performs train simulation operation simulation in cooperation with the VSC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310874345.9A CN117148738A (en) | 2023-07-17 | 2023-07-17 | Simulation test system for vehicle-mounted controller of operation control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310874345.9A CN117148738A (en) | 2023-07-17 | 2023-07-17 | Simulation test system for vehicle-mounted controller of operation control system |
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| CN117148738A true CN117148738A (en) | 2023-12-01 |
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| CN202310874345.9A Pending CN117148738A (en) | 2023-07-17 | 2023-07-17 | Simulation test system for vehicle-mounted controller of operation control system |
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- 2023-07-17 CN CN202310874345.9A patent/CN117148738A/en active Pending
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