CN111324109A - Signal simulation system and method - Google Patents
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- CN111324109A CN111324109A CN202010182621.1A CN202010182621A CN111324109A CN 111324109 A CN111324109 A CN 111324109A CN 202010182621 A CN202010182621 A CN 202010182621A CN 111324109 A CN111324109 A CN 111324109A
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
Abstract
A signal simulation system and method, comprising: the device comprises a main control module and a signal generating module; the main control module is used for acquiring a simulation instruction of the excitation signal and analyzing the simulation instruction to acquire simulation information of the excitation signal; and the signal generation module is used for generating an excitation signal according to the simulation information. Because the signal simulation system comprises the main control module for analyzing the simulation instruction of the excitation signal to obtain the simulation information and the signal generation module for generating the excitation signal according to the simulation information, the generation of the excitation signal is realized on the premise of avoiding the deployment of the entity equipment, thereby greatly reducing the cost of the simulation test.
Description
Technical Field
The present disclosure relates to signal processing technologies, and more particularly, to a signal simulation system and method.
Background
The rail transit signal control system is key system equipment which ensures the running safety of a train, realizes the traveling command and the running modernization of the train and improves the transportation efficiency. The rail transit signal control system is really put into use, and simulation testing is an important link.
In the related art, excitation signals used for simulation tests of a rail transit signal control system belong to the special purpose of the railway industry, and for example, speed sensor excitation signals, rail circuit excitation signals and the like often need to be generated by corresponding signal generation entity equipment respectively.
However, since the generation of the excitation signal requires the deployment of corresponding physical devices, the cost of the simulation test is high.
Disclosure of Invention
The application provides a signal simulation system and a signal simulation method, which can reduce the cost of simulation test.
The application provides a signal simulation system, including: the device comprises a main control module and a signal generating module;
the main control module is used for acquiring a simulation instruction of the excitation signal and analyzing the simulation instruction to acquire simulation information of the excitation signal;
and the signal generation module is used for generating an excitation signal according to the simulation information.
The simulation information of the excitation signal comprises: parameters of the excitation signal and timing information.
The excitation signal includes one or more of: a velocity excitation signal, a track circuit excitation signal, a trackside Electronic Unit (LEU) excitation signal, and a transponder excitation signal.
The signal generation module comprises one or more of the following parts: a speed sensor signal generator, a track circuit signal generator, an LEU signal generator, a transponder signal generator and a transponder antenna;
the speed sensor signal generator is used for generating a modulatable speed sensor square wave signal according to the parameters and the time sequence information of the speed excitation signal;
the track circuit signal generator is used for generating a modulatable track circuit sinusoidal Frequency-Shift Keying (FSK) or Amplitude Shift Keying (ASK) signal according to the parameters and the time sequence information of the track circuit excitation signal;
the LEU signal generator is used for generating a modulatable LEU-C interface wave combination signal according to the parameters and the time sequence information of the LEU excitation signal;
the transponder signal generator and the transponder antenna are used for generating a transponder radio frequency signal according to the parameter and the time sequence information of the transponder excitation signal.
The system further comprises: a signal processor;
the signal processor is configured to perform one or more of the following operations: carrying out voltage amplitude amplification and isolated driving on the square wave signal generated by the speed sensor; performing voltage amplitude amplification, power amplification and transformer isolation impedance transformation on a track circuit sinusoidal FSK or ASK signal generated by the track circuit signal generator; and carrying out voltage amplitude amplification and transformer impedance isolation transformation on the LEU-C interface composite wave signal generated by the LEU signal generator.
The system further comprises: an Input/Output (IO) module, the IO module including one or more of: a digital quantity IO interface and an analog quantity IO interface;
the digital quantity IO interface is used for collecting a digital quantity IO signal from the outside or outputting the digital quantity IO signal to the outside;
the analog quantity IO interface is used for collecting analog quantity IO signals from the outside or outputting the analog quantity IO signals to the outside.
The system further comprises: a communication module comprising one or more of the following: a Railway integrated digital Mobile Communication System (Global System For Mobile Communication For radio) GSM-R radio station, Wireless Communication (WIFI), fourth generation Mobile Communication (4 th generation Mobile Communication technology, 4G) radio station, and a Communication transceiver;
the GSM-R radio station is used for receiving external GSM-R signals or sending the external GSM-R signals;
the WIFI radio station is used for receiving external WIFI signals or sending the WIFI signals to the outside;
the 4G radio station is used for receiving an external 4G signal or sending the external 4G signal;
the communication transceiver is used for receiving communication signals from the outside or sending the communication signals to the outside through the wired communication interface.
The system further comprises: an auxiliary computer;
the auxiliary computer is used for receiving a simulation instruction of an excitation signal and sending the simulation instruction of the excitation signal to the main control module; and receiving the excitation signal fed back by the signal generation module, and displaying the waveform corresponding to the fed-back excitation signal.
And the auxiliary computer is also used for outputting a simulation instruction of a corresponding excitation signal to the main control module according to the pre-generated test program script.
The present application further provides a signal simulation method applied to the signal simulation system according to any one of the above methods, including:
acquiring a simulation instruction of an excitation signal, and analyzing the simulation instruction to acquire simulation information of the excitation signal;
and generating an excitation signal according to the simulation information.
Compared with the related art, the method comprises the following steps: the device comprises a main control module and a signal generating module; the main control module is used for acquiring a simulation instruction of the excitation signal and analyzing the simulation instruction to acquire simulation information of the excitation signal; and the signal generation module is used for generating an excitation signal according to the simulation information. Because the signal simulation system comprises the main control module for analyzing the simulation instruction of the excitation signal to obtain the simulation information and the signal generation module for generating the excitation signal according to the simulation information, the generation of the excitation signal is realized on the premise of avoiding the deployment of the entity equipment, the generation mode of the excitation signal is changed, and the cost of the simulation test is greatly reduced.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide an understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure.
Fig. 1 is a schematic structural diagram of a signal simulation system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another signal simulation system according to an embodiment of the present application;
fig. 3 is a schematic diagram of a power amplifier circuit according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart of a signal simulation method according to an embodiment of the present application;
fig. 5 is a schematic flow chart of another signal simulation method according to an embodiment of the present application.
Detailed Description
The present application describes embodiments, but the description is illustrative rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.
The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive concept as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive aspects to form yet another unique inventive aspect, as defined by the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.
Further, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other orders of steps are possible as will be understood by those of ordinary skill in the art. Therefore, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Further, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present application.
An embodiment of the present application provides a signal simulation system, as shown in fig. 1, including: a main control module 11 and a signal generating module 12.
The main control module 11 is configured to obtain a simulation instruction of the excitation signal, and analyze the simulation instruction to obtain simulation information of the excitation signal.
And the signal generating module 12 is used for generating an excitation signal according to the simulation information.
In one illustrative example, the simulation information of the excitation signal includes: parameters of the excitation signal and timing information.
In one illustrative example, the excitation signal includes one or more of: a speed excitation signal, a track circuit excitation signal, a trackside electronics unit LEU excitation signal and a transponder excitation signal.
In one illustrative example, the signal generation module includes one or more of the following: a speed sensor signal generator, a track circuit signal generator, an LEU signal generator, a transponder signal generator, and a transponder antenna.
And the speed sensor signal generator is used for generating a modulatable speed sensor square wave signal according to the parameter and the time sequence information of the speed excitation signal.
And the track circuit signal generator is used for generating a modulatable track circuit sinusoidal frequency shift keying FSK or amplitude shift keying ASK signal according to the parameters and the time sequence information of the track circuit excitation signal.
And the LEU signal generator is used for generating a modulatable LEU-C interface wave combination signal according to the parameters and the time sequence information of the LEU excitation signal.
A transponder signal generator and a transponder antenna for generating a transponder radio frequency signal based on parameters and timing information of the transponder excitation signal.
In an exemplary embodiment, other stimulus signal generators may be added to the signal generation module to generate the corresponding stimulus signals required, depending on the particular test scenario requirements.
In one illustrative example, the system further comprises: a signal processor.
A signal processor to perform one or more of the following operations: carrying out voltage amplitude amplification and isolated driving on a square wave signal generated by a speed sensor; performing voltage amplitude amplification, power amplification and transformer isolation impedance transformation on a track circuit sinusoidal FSK or ASK signal generated by a track circuit signal generator; and carrying out voltage amplitude amplification and transformer impedance isolation transformation on an LEU-C interface composite wave signal generated by the LEU signal generator.
In one illustrative example, the system further comprises: an input/output (IO) module, wherein the IO module comprises one or more of the following parts: a digital IO interface and an analog IO interface.
And the digital quantity IO interface is used for collecting the digital quantity IO signal from the outside or outputting the digital quantity IO signal to the outside.
And the analog quantity IO interface is used for collecting an analog quantity IO signal from the outside or outputting the analog quantity IO signal to the outside.
In one illustrative example, the system further comprises: a communication module comprising one or more of the following: the railway comprehensive digital mobile communication system comprises a GSM-R radio station, wireless communication WIFI, a fourth-generation mobile communication 4G radio station and a communication transceiver.
And the GSM-R radio station is used for receiving the GSM-R signal from the outside or sending the GSM-R signal to the outside.
And the WIFI radio station is used for receiving external WIFI signals or sending the WIFI signals to the outside.
And the 4G radio station is used for receiving the 4G signals from the outside or sending the 4G signals to the outside.
And the communication transceiver is used for receiving communication signals from the outside or sending the communication signals to the outside through the wired communication interface.
In one illustrative example, the system further comprises: and (4) assisting the computer.
The auxiliary computer is used for receiving the simulation instruction of the excitation signal and sending the simulation instruction of the excitation signal to the main control module; and receiving the excitation signal fed back by the signal generating module, and displaying the waveform corresponding to the fed-back excitation signal.
In an exemplary embodiment, the auxiliary computer is further configured to output a simulation instruction of a corresponding excitation signal to the main control module according to a pre-generated test program script.
In an exemplary embodiment, the test program script is matched with the data transceiving of the communication interface of the tested equipment to dynamically adjust the output signal channel, the output signal time sequence, the parameters and the like of the device; for example, when certain data is received, a certain simulation instruction is correspondingly sent, and then different simulation instructions are sent for multiple times according to a certain time interval, for example; the test program script may be set according to actual test requirements. Due to the adoption of the method, the programmable automatic test of the rail transit signal equipment is realized, the signal generating equipment is independently operated respectively, the test efficiency is greatly improved, and the labor intensity is reduced.
The signal simulation system provided by the embodiment of the application comprises the main control module for analyzing the excitation signal simulation instruction to obtain the simulation information and the signal generation module for generating the excitation signal according to the simulation information, so that the generation of the excitation signal is realized on the premise of avoiding the deployment of the entity equipment, the generation mode of the excitation signal is changed, and the cost of the simulation test is greatly reduced. And because the signal generator is included in the signal generation module of the signal simulation system, not the physical device, the volume of the signal simulation system is small.
An embodiment of the present application further provides a signal simulation system, as shown in fig. 2, including: the auxiliary computer 21, the main control module 22, the signal generation module 23, the IO module 24, the communication module 25, and the signal processor 26. Wherein, the signal generating module 23 includes: a speed sensor signal generator 231, a track circuit signal generator 232, an LEU signal generator 233, a transponder signal generator 234, and a transponder antenna 235; the IO module 24 includes: a digital quantity IO interface 241 and an analog quantity IO interface 242; the communication module 25 includes: GSM-R station 251, WIFI station 252, 4G station 253, and communications transceiver 254.
The auxiliary computer 21 may be a general computer, and the auxiliary computer 21 is configured to run a programmable test program and a graphical operation interface, generate a configuration command of the signal generation module, and issue the configuration command to the main control module 22 through an ethernet interface; and the device is also used for graphically displaying the excitation signals fed back by each signal channel of the current signal generation module, displaying corresponding waveform information, displaying connection information of the wireless channel and the like.
The host module 22 may be a conventional embedded microcontroller, such as a Digital Signal Processor (DSP) family, an RISC (Advanced RISC Machines, ARM) family, a reduced instruction set architecture (Performance Optimization With Enhanced RISC, PowerPC) family, and the like.
The main control module 22 communicates with the auxiliary computer 21 via an ethernet interface, and is configured to perform signal channel selection, signal channel output timing control, setting of each output signal parameter, execution of a generation algorithm of some complex signals, and the like of the signal generation module 23 according to a received control instruction, and control the signal generation module 23 to generate a required signal; the digital quantity IO interface 241 and the analog quantity IO interface 242 in the IO module 24 are also used for controlling to realize the acquisition and the output of corresponding signals; and is also used for controlling the stations (including the GSM-R station 251, the WIFI station 252 and the 4G station 253) in the communication module 25 and the communication transceiver to realize wireless or wired data transmission.
The signal generating module 23 is connected to the main control module 22 through a board-level bus interface, wherein the waveform generating circuit can be implemented by a Direct Digital Synthesizer (DDS) or a Programmable Logic Device (PLD) or other schemes.
The signal generating module 23 is configured to respectively execute different algorithms according to the control command (corresponding to the simulation information in the foregoing embodiment) of the main control module 22 to generate the excitation signals required by the simulation test. Wherein, the speed sensor signal generator 231 is used for generating a modulatable speed sensor square wave signal; a track circuit signal generator 232 for generating a modulatable track circuit sinusoidal FSK or ASK signal; an LEU signal generator 233 for generating a modulatable LEU-C interface composite signal; a transponder signal generator and a transponder antenna for generating a transponder radio frequency signal.
The direct physical connection between the IO module 24 and the main control module 22 can be implemented in two ways, one is a hardware line connection, and each way of main control module pin is connected with an IO line, which is original but has faster response and occupies more pin resources; the other is board-level bus connection, where the IO module 24 converts digital/analog information into a certain communication format and then communicates with the main control module 22 via the board-level bus, where the board-level bus may be a Serial Peripheral Interface (SPI) interface, an Inter-Integrated Circuit (IIC) interface, a Universal Asynchronous Receiver/Transmitter (UART) interface, and the like; the second mode is a connection mode which is generally adopted by modern electronic circuits.
The IO module 24 is configured to receive an output command from the main control module 22, perform power amplification or digital/analog conversion, and then drive a digital quantity peripheral or an analog quantity peripheral, respectively, to implement an output driving function; and on the other hand, the digital or analog data acquisition device is used for receiving digital or analog information from a peripheral device, and the digital or analog information is converted into data in a specific format for the main control module 22 to read after being isolated or subjected to analog/digital conversion respectively, so that an input acquisition function is realized. The digital quantity IO interface 241 supports 32 digital quantity outputs and 32 digital quantity inputs at the highest, and the digital quantity outputs are used for driving digital quantity control interfaces of the tested equipment, such as train door control, signal lamps, brake control, traction control and the like; the digital quantity input is used for acquiring digital quantity level signals from the tested equipment, such as state feedback signals of controlled objects of train door control, signal lamps, brake control, traction control, driver handles and the like. The analog quantity IO interface 242 supports 8 paths of analog quantity output and 8 paths of analog quantity input at the highest, and the analog quantity output is used for driving analog quantity control interfaces of the tested equipment, such as train traction control, automatic driving control and the like; the analog quantity input is used for acquiring analog quantity level signals of the tested equipment, such as analog quantity information of brake pressure, vehicle acceleration and the like.
The communication module 25, as a communication protocol converter between the main control module 22 and the peripheral device, adapts a wired communication interface of the peripheral device, such as a GSM, WiFi, 4G wireless communication interface or an ethernet, RS422/485/232, a Controller Area Network (CAN), to a local communication interface that CAN be recognized by the main control module, where the local communication interface includes types of UART, SPI, Low-voltage differential Signaling (LVDS), Universal Serial Bus (USB), PCI-E, and parallel Bus, according to different device application conditions.
The communication module 25 is configured to receive port configuration information and data transmission information of the main control module 22, and is respectively configured to parameter configuration (including number, type, rate, direction, duplex state, connection state, and the like of interfaces in the module) and to send valid data to the peripheral device; and on the other hand, the data processing device is used for receiving valid data of the peripheral equipment, and the valid data is provided for the main control module 22 to be read after being subjected to format conversion. The communication module comprises a wireless communication part (comprising a GSM-R radio station, a WIFI radio station and a 4G radio station) and a wired communication part (a communication transceiver), wherein the wireless communication part is used for GSM-R wireless communication test of a C3-grade high-speed train or WiFi or 4G wireless communication test of an application scene of a subway or a tramcar; the wired communication part is used for expanding various communication interfaces such as Ethernet, RS422, RS485, RS232, CAN and the like, and is used for connecting the wired communication ports of the ground equipment and the vehicle-mounted equipment to realize system-level joint test.
The signal processor 26 is configured to perform power amplification on the test signal generated by the signal generation module 23 to meet a condition of driving a load, specifically, perform voltage amplitude amplification and isolation driving on a square wave signal of the speed sensor; performing voltage amplitude, power amplification and transformer isolation impedance transformation on a sinusoidal FSK or ASK signal of a track circuit; and carrying out voltage amplitude amplification and transformer impedance isolation transformation on the LEU-C interface composite wave signal. The signal processor 26 may be implemented using an integrated power amplifier, a transformer, a relay, etc., according to different amplification targets. A typical power amplification circuit schematic is shown in fig. 3 below.
An embodiment of the present application further provides a signal simulation method, which is applied to the signal simulation system described in any of the above embodiments, as shown in fig. 4, and includes:
301, acquiring a simulation instruction of the excitation signal, and analyzing the simulation instruction to acquire simulation information of the excitation signal.
In an exemplary embodiment, after generating the excitation signal according to the simulation information, the method further includes: and establishing test connection with the tested equipment and executing the simulation test instruction.
The signal simulation method provided by the embodiment of the application is applied to a signal simulation system comprising a main control module for analyzing the simulation instruction of the excitation signal to obtain the simulation information and a signal generation module for generating the excitation signal according to the simulation information, so that the generation of the excitation signal is realized on the premise of avoiding the deployment of the entity equipment, the generation mode of the excitation signal is changed, and the cost of the simulation test is greatly reduced.
An embodiment of the present application further provides a signal simulation method, which is applied to the signal simulation system described in any of the above embodiments, as shown in fig. 5, and includes:
And step 403, communicating with an upper computer to obtain a configuration instruction.
And step 409, feeding back the upper computer to display the waveform.
And step 410, judging whether to switch the signal channel, if not, skipping to step 403, and if so, skipping to step 405.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Claims (10)
1. A signal emulation system, comprising: the device comprises a main control module and a signal generating module;
the main control module is used for acquiring a simulation instruction of the excitation signal and analyzing the simulation instruction to acquire simulation information of the excitation signal;
and the signal generation module is used for generating an excitation signal according to the simulation information.
2. The system of claim 1, wherein the simulation information of the excitation signal comprises: parameters of the excitation signal and timing information.
3. The system of claim 2, wherein the excitation signal comprises one or more of: a speed excitation signal, a track circuit excitation signal, a trackside electronics unit LEU excitation signal and a transponder excitation signal.
4. The system of claim 3, wherein the signal generation module comprises one or more of: a speed sensor signal generator, a track circuit signal generator, an LEU signal generator, a transponder signal generator and a transponder antenna;
the speed sensor signal generator is used for generating a modulatable speed sensor square wave signal according to the parameters and the time sequence information of the speed excitation signal;
the track circuit signal generator is used for generating a modulatable track circuit sinusoidal frequency shift keying FSK or amplitude shift keying ASK signal according to the parameters and the time sequence information of the track circuit excitation signal;
the LEU signal generator is used for generating a modulatable LEU-C interface wave combination signal according to the parameters and the time sequence information of the LEU excitation signal;
the transponder signal generator and the transponder antenna are used for generating a transponder radio frequency signal according to the parameter and the time sequence information of the transponder excitation signal.
5. The system of claim 4, further comprising: a signal processor;
the signal processor is configured to perform one or more of the following operations: carrying out voltage amplitude amplification and isolated driving on the square wave signal generated by the speed sensor; performing voltage amplitude amplification, power amplification and transformer isolation impedance transformation on a track circuit sinusoidal FSK or ASK signal generated by the track circuit signal generator; and carrying out voltage amplitude amplification and transformer impedance isolation transformation on the LEU-C interface composite wave signal generated by the LEU signal generator.
6. The system of claim 1, further comprising: an Input Output (IO) module, the IO module comprising one or more of: a digital quantity IO interface and an analog quantity IO interface;
the digital quantity IO interface is used for collecting a digital quantity IO signal from the outside or outputting the digital quantity IO signal to the outside;
the analog quantity IO interface is used for collecting analog quantity IO signals from the outside or outputting the analog quantity IO signals to the outside.
7. The system of claim 1, further comprising: a communication module comprising one or more of the following: the system comprises a railway comprehensive digital mobile communication system GSM-R radio station, wireless communication WIFI, a fourth-generation mobile communication 4G radio station and a communication transceiver;
the GSM-R radio station is used for receiving external GSM-R signals or sending the external GSM-R signals;
the WIFI radio station is used for receiving external WIFI signals or sending the WIFI signals to the outside;
the 4G radio station is used for receiving an external 4G signal or sending the external 4G signal;
the communication transceiver is used for receiving communication signals from the outside or sending the communication signals to the outside through the wired communication interface.
8. The system of claim 1, further comprising: an auxiliary computer;
the auxiliary computer is used for receiving a simulation instruction of an excitation signal and sending the simulation instruction of the excitation signal to the main control module; and receiving the excitation signal fed back by the signal generation module, and displaying the waveform corresponding to the fed-back excitation signal.
9. The system of claim 8, wherein the auxiliary computer is further configured to output simulation instructions of corresponding excitation signals to the main control module according to a pre-generated test program script.
10. A signal simulation method applied to the signal simulation system according to any one of claims 1 to 9, comprising:
acquiring a simulation instruction of an excitation signal, and analyzing the simulation instruction to acquire simulation information of the excitation signal;
and generating an excitation signal according to the simulation information.
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| CN202010182621.1A CN111324109A (en) | 2020-03-16 | 2020-03-16 | Signal simulation system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666844A (en) * | 2020-11-30 | 2021-04-16 | 卡斯柯信号有限公司 | Multipurpose configurable railway signal simulation test system |
| WO2024051003A1 (en) * | 2022-09-06 | 2024-03-14 | 卡斯柯信号有限公司 | Fsk and lan protocol converter apparatus for rail transit signal system |
-
2020
- 2020-03-16 CN CN202010182621.1A patent/CN111324109A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666844A (en) * | 2020-11-30 | 2021-04-16 | 卡斯柯信号有限公司 | Multipurpose configurable railway signal simulation test system |
| WO2024051003A1 (en) * | 2022-09-06 | 2024-03-14 | 卡斯柯信号有限公司 | Fsk and lan protocol converter apparatus for rail transit signal system |
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