Running environment simulation device and test method of signal machine function board

Abstract

The invention provides an operation environment simulation device and a test method of a signal machine function board. A signal machine control unit in the device is provided with a tested signal machine function board; the power supply unit is used for supplying power to the upper computer, the annunciator control unit and the annunciator simulation load unit; the upper computer is connected with the annunciator control unit through the Ethernet and is used for issuing a control instruction to the annunciator control unit, and the control instruction is used for controlling the annunciator control unit to output a lamp position state display control signal to the annunciator simulation load unit; the annunciator simulation load unit is connected with the annunciator control unit through a load cable and used for lighting according to signals of the annunciator control unit, and the annunciator control unit lights a state lamp of the annunciator control unit after collecting the lighting state of the annunciator simulation load. The channel state is visualized to simulate the operation environment corresponding to the signal machine function board to be tested, that is, the operation environment of the signal machine function board can be simulated to perform full-function inspection on the ASU.

Description

Technical Field

[0001] The present invention relates to the field of testing technology, and in particular to an operating environment simulation device and a testing method for a signal machine function board. Background Art

[0002] The computer interlocking system is responsible for handling the safety interlocking relationship between the turnouts, signal machines, and track circuits within the route, accepting control instructions from ATS (Automatic Train Supervision) or operators, and outputting interlocking information to ATP (Automatic Train Protection) and ATS. The DS6-60 fully electronic computer interlocking system is an electronic execution unit subsystem independently developed by CRSC on the basis of the existing computer interlocking system, realizing the function of direct drive and direct acquisition of trackside equipment. The system adopts a "2 times 2 take 2" structure and has passed the international third-party SIL (Safety Integrity Level) 4 safety certification.

[0003] The DS6-60 fully electronic computer interlocking system adopts a modular and networked design structure, and is mainly composed of four parts: human-computer conversation layer, security operation layer, execution presentation layer and power subsystem. It can meet the application of stations of different types and configurations, and can be flexibly configured as local interlocking, regional interlocking or centralized interlocking as needed to meet the needs of various users such as remote centralized control, station local control, and outdoor control. The DS6-60 fully electronic computer interlocking system has the advantages of high security, small size, easy maintenance and flexible configuration. It is suitable for national railways, subways, urban rails, factory and mine local railways, and overseas ETCS (European Train Control System)-1 / ETCS-2 level train control system lines, and is the future development direction of railway signals.

[0004] The signal control module of the executive presentation layer in the DS6-60 fully electronic computer interlocking system can control AC color light signal machines and AC LED (Light Emitting Diode) signal machines. A single AC signal machine function board (AC Signal Unit, ASU) can independently control 8 light positions, adopts double-break control mode, supports fault detection and safety processing, supports combination lights and flashing lights control, has redundant signal machine drive power supply interface, safety control communication interface and maintenance communication interface, and the maximum control distance is 10Km. The ASU board is the core function board of the signal control module and the most used board in the executive presentation layer of the DS6-60 fully electronic computer interlocking system. Therefore, how to conduct a full-function inspection of the ASU to reduce assembly delays caused by equipment failures is an urgent problem that current technicians need to solve. Summary of the invention

[0005] In view of this, an embodiment of the present invention provides an operating environment simulation device and a testing method for a signal machine function board, which can simulate the operating environment of the signal machine function board to perform a full-function check on the ASU, so as to reduce assembly delays caused by equipment failures and improve the production efficiency and product quality of the ASU type AC signal machine function board.

[0006] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0007] A first aspect of an embodiment of the present invention discloses an operating environment simulation device for a signal machine function board, comprising: a host computer, a power supply unit, a signal machine control unit and a signal machine simulation load unit, wherein the signal machine function board is arranged in the signal machine control unit;

[0008] The power supply unit is respectively connected to the host computer, the signal control unit and the signal simulation load unit through power cables, and is used to supply power to the host computer, the signal control unit and the signal simulation load unit;

[0009] The host computer is connected to the signal control unit via Ethernet, and is used to send test control instructions to the signal control unit;

[0010] The signal control unit is used to generate a corresponding light position status display control signal according to the test control instruction;

[0011] The signal machine simulation load unit is connected to the signal machine control unit via a load cable, and is used to light up the light according to the light position status display control signal;

[0012] The signal control unit is also used to light up its own corresponding status light according to the lighting status of the signal simulation load unit, so as to realize the channel status visualization to simulate the operating environment corresponding to the signal function board.

[0013] Optionally, in the above-mentioned operating environment simulation device for the signal machine function board, the signal machine control unit includes: the signal machine function board, a communication board, a terminal board and a motherboard;

[0014] The signal machine function board is installed on one side of the motherboard, and the communication board and the terminal board are installed on the other side of the motherboard.

[0015] Optionally, in the above-mentioned operating environment simulation device for the signal machine function board, the signal machine function board is installed on the T surface of the motherboard, and the communication board and the terminal board are installed on the B surface of the motherboard.

[0016] Optionally, in the above-mentioned operating environment simulation device for the signal machine function board, the communication board, the terminal board and the motherboard are integrated into an auxiliary test board unit.

[0017] Optionally, in the above-mentioned operating environment simulation device of the signal function board, the signal simulation load unit includes: a preset number of input channels, each of the input channels uses a light-emitting diode to simulate the status of a signal light position.

[0018] Optionally, in the above-mentioned operating environment simulation device of the signal machine function board, the preset number of routes is 8.

[0019] Optionally, in the operating environment simulation device of the above-mentioned signal machine function board, the power supply unit includes: a first power supply sub-unit and a second power supply sub-unit, the first power supply sub-unit is used to power the host computer and the signal machine control unit, and the second power supply sub-unit is used to power the signal machine control unit and the signal machine simulation load unit.

[0020] Optionally, in the above-mentioned operating environment simulation device for the signal function board, the supply voltage of the first power subunit is greater than the supply voltage of the second power subunit.

[0021] Optionally, in the above-mentioned operating environment simulation device for the signal function board, the host computer, the power supply unit, the signal control unit and the signal simulation load unit are integrated in the same group box.

[0022] A second aspect of an embodiment of the present invention discloses a testing method, which is applied to a host computer in an operating environment simulation device for a signal function board as disclosed in any one of the first aspects, and the method comprises:

[0023] After receiving the test control instruction sent by the user, responding to the test control instruction, sending the test control instruction to the signal control unit in the operating environment simulation device;

[0024] For each test control instruction, determining whether the light position state of the signal machine simulation load unit and the light position state of the signal machine control unit in the operating environment simulation device match the test control instruction during the execution of the test control instruction;

[0025] If it is determined that the light position state of the signal machine simulation load unit and the light position state of the signal machine control unit in the operating environment simulation device during the execution of all the control instructions match the test control instruction, then it is tested that the signal machine function board is fully functional;

[0026] If it is determined that the light position status of the signal machine simulation load unit in the operating environment simulation device and the light position status of the signal machine control unit do not match the test control instruction during at least one execution of the control instruction, it is tested that the function of the signal machine function board is incomplete.

[0027] The operating environment simulation device of the signal machine function board provided based on the above-mentioned embodiment of the present invention includes: a host computer, a power supply unit, a signal machine control unit and a signal machine simulation load unit, wherein the signal machine function board to be tested is arranged in the signal machine control unit; the power supply unit is respectively connected to the host computer, the signal machine control unit and the signal machine simulation load unit through power cables, and is used to power the host computer, the signal machine control unit and the signal machine simulation load unit; the host computer and the signal machine control unit are connected through Ethernet, and are used to send test control instructions to the signal machine control unit; the signal machine control unit is used to generate a corresponding light position status display control signal according to the test control instruction; the signal machine simulation load unit is connected to the signal machine control unit through a load cable, and is used to light up the light according to the light position status display control signal; the signal machine control unit is also used to light up its own corresponding status light according to the lighting status of the signal machine simulation load unit, realize channel status visualization to simulate the operating environment corresponding to the signal machine function board, that is, the present application can simulate the operating environment of the signal machine function board to perform a full-function inspection of the ASU, so as to reduce the assembly period delay caused by equipment failure, and improve the production efficiency and product quality of the ASU type AC signal machine function board. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of an operating environment simulation device for a signal machine function board provided in this application;

[0030] Figure 2 A schematic diagram of the pin positions of a connector provided in an embodiment of the present application;

[0031] Figure 3 A test schematic diagram provided for an embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In this application, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0034] The embodiment of the present invention provides an operating environment simulation device for a signal function board, which can simulate the operating environment of the signal function board to perform a full-function check on the ASU, thereby reducing assembly delays caused by equipment failures and improving the production efficiency and product quality of the ASU type AC signal function board.

[0035] See also Figure 1 The operating environment simulation device of the signal machine function board mainly includes: a host computer 101, a power supply unit 102, a signal machine control unit 103 and a signal machine simulation load unit 104, and the signal machine function board is arranged in the signal machine control unit 103;

[0036] The power supply unit 102 is respectively connected to the host computer 101, the signal control unit 103 and the signal simulated load unit 104 through power cables, and is used to supply power to the host computer 101, the signal control unit 103 and the signal simulated load unit 104;

[0037] The host computer 101 is connected to the signal control unit 103 via Ethernet, and is used to send test control instructions to the signal control unit 103;

[0038] The signal control unit 103 is used to generate a corresponding light position status display control signal according to the test control instruction;

[0039] The signal machine simulation load unit 104 is connected to the signal machine control unit 103 via a load cable, and is used to light the light according to the light position status display control signal;

[0040] The signal control unit 103 is also used to light up its own corresponding status light according to the lighting status of the signal simulation load unit 104, so as to realize the channel status visualization and simulate the operating environment corresponding to the signal function board.

[0041] In some embodiments, the signal control unit 103 may include: a signal function board, a communication board, a terminal board and a motherboard; wherein the signal function board is installed on one side of the motherboard, and the communication board and the terminal board are installed on the other side of the motherboard.

[0042] Specifically, the signal machine function board can be installed on the T side of the motherboard, and the communication board and the terminal board can be installed on the B side of the motherboard. The T side is the front side of the motherboard, and the B side is the back side of the motherboard.

[0043] In actual applications, the test control instructions issued by the host computer 101 can be transmitted to the communication board via Ethernet, and the communication board transmits the test control instructions to the signal function board via the motherboard. After identification and processing, the signal function board opens / closes the input channel (light status display control signal), transmits it to the terminal board via the motherboard, and transmits it to the signal simulation load unit 104 via the load cable.

[0044] In some embodiments, the traffic light simulation load unit 104 may include: a preset number of input channels, each input channel using a light emitting diode to simulate the status of a traffic light position.

[0045] Specifically, the preset number of paths may be 8; of course, it is not limited thereto, and the specific value of the preset number of paths may also be determined according to the specific application environment and user needs. This application does not limit it and it is within the protection scope of this application.

[0046] In some embodiments, the power supply unit 102 may include: a first power supply subunit and a second power supply subunit, the first power supply subunit is used to power the host computer 101 and the signal control unit 103, and the second power supply subunit is used to power the signal control unit 103 and the signal simulation load unit 104.

[0047] Specifically, the supply voltage of the first power supply subunit may be greater than the supply voltage of the second power supply subunit.

[0048] In actual applications, the power supply unit 102 can receive mains input, and provide working voltage for the host computer 101, the signal control unit 103 and the signal simulation load unit 104 through its own voltage stabilization and voltage transformation functions. Specifically, the power supply unit 102 can introduce 220VAC, 50Hz power supply; the first power supply subunit outputs two 220VAC power supplies to the host computer 101 and the signal control unit 103 respectively, and the second power supply subunit outputs two 24VDC power supplies to the signal control unit 103 and the signal simulation load unit 104 respectively.

[0049] It should be noted that in practice, the host computer 101 generally includes an industrial computer, a display screen, a keyboard, a mouse, etc., which can realize human-computer interaction and receive test control instructions. The test control instruction can be a test instruction issued by the tester through the host computer 101 to test the functional integrity of the signal function board. Different test contents correspond to different test instructions. The specific test content, test instructions and the light status of each unit can be shown in Table 1-1:

[0050] Table 1-1 Test content, test instructions and corresponding lamp status table of each unit

[0051]

[0052]

[0053] It should be noted that the first type and the second type of light-off instructions are the same, but use different channels, that is, verify that different test channels are functioning properly.

[0054] It should also be noted that in actual applications, the light status of the signal control unit 103 and the light status of the signal simulation load unit 104 can be determined based on the test content to determine whether they match the corresponding test instructions, thereby determining whether the test of the signal function board is qualified.

[0055] Specifically, the host computer 101 can send a test control instruction to the signal control unit 103 via Ethernet, and control the signal function board under test in the signal control unit 103 to output an on or off signal (light position status display control signal) to the signal simulation load unit 104. After receiving the signal from the signal function board under test, the signal simulation load unit 104 will control the corresponding channel light position to turn on or off. The signal control unit 103 is used to collect the lighting status of the signal simulation load unit 104, and light up its own corresponding status light according to the lighting status of the signal simulation load unit 104. Through the test control instruction issued by the host computer 101, the light position display of the signal simulation load unit 104 and the signal control unit 103, it can be judged whether the tested signal function board can work normally.

[0056] In practical applications, in order to make the connection more standardized and the wiring harness layout more reasonable, the load cables between the signal control unit 103 and the signal simulation load unit 104 can be connected through a connector; specifically, a connector with model number ASPRC-18PS-THF can be used in the signal control unit 103, but of course it is not limited to this, and other existing connectors can also be used. This application does not limit them and they are all within the protection scope of this application.

[0057] Specifically, taking the connector of ASPRC-18PS-THF as an example, its external interface definition can be shown in Table 2-1:

[0058] Table 2-1 Signal control unit 103 wiring instructions

[0059]

[0060] It should be noted that in practice, because each channel is 220V, physical isolation is required between N and P. Based on the pin definition of the ASPRC-18PS-THF connector, the arrangement is based on Table 2-1, which can also effectively avoid short circuits. Specifically, the specific positions of each pin in the ASPRC-18PS-THF connector can be as follows: Figure 2 shown.

[0061] It should be noted that in practice, the signal machine simulation load unit 104 may use a 20-pin connector, and its external interface definition may be as shown in Table 2-2:

[0062] Table 2-2 Signal machine simulation load unit 104 wiring instructions

[0063]

[0064]

[0065] It should also be noted that LED1_N and LED1_P in the table are a group and can form one input channel; the same is true for the others, for a total of 8 input channels.

[0066] In practical applications, the host computer 101, the power supply unit 102, the signal control unit 103 and the signal simulation load unit 104 can be integrated into the same group box, and the group box can adopt an alloy structure; of course, it is not limited to this. The use of the group box material can also be determined according to the specific application environment and user needs. This application does not limit it and it is within the protection scope of this application.

[0067] It should be noted that the signal machine in this embodiment can be an AC signal machine, which can be applied to the DS6-60 type fully electronic computer interlocking system.

[0068] Based on the above principle, the operating environment simulation device of the signal machine function board provided in this embodiment includes: a host computer 101, a power supply unit 102, a signal machine control unit 103 and a signal machine simulation load unit 104, wherein the signal machine function board to be tested is arranged in the signal machine control unit 103; the power supply unit 102 is respectively connected to the host computer 101, the signal machine control unit 103 and the signal machine simulation load unit 104 through power cables, and is used to supply power to the host computer 101, the signal machine control unit 103 and the signal machine simulation load unit 104; the host computer 101 and the signal machine control unit 103 are connected through Ethernet, and are used to send test control instructions to the signal machine control unit 103; The signal machine control unit 103 is used to generate a corresponding light position status display control signal according to the test control instruction; the signal machine simulation load unit 104 is connected to the signal machine control unit 103 by a load cable, and is used to light up the light according to the light position status display control signal; the signal machine control unit 103 is also used to light up its own corresponding status light according to the lighting status of the signal machine simulation load unit, so as to realize channel status visualization and simulate the operating environment corresponding to the signal machine function board, that is, the present application can simulate the operating environment of the signal machine function board to perform a full-function inspection of the ASU, so as to reduce assembly delays caused by equipment failures and improve the production efficiency and product quality of the ASU type AC signal machine function board.

[0069] Optionally, the embodiment of the present application further provides a testing method, which can be applied to the host computer in the operating environment simulation device of the signal function board as described in any of the above embodiments, and the method mainly comprises the following steps:

[0070] S101. After receiving a test control instruction sent by a user, respond to the test control instruction and send the test control instruction to a signal control unit in an operating environment simulation device.

[0071] In actual applications, the signal control unit in the operating environment simulation device will generate a corresponding light position status display control signal according to the received test control instruction, and send the light position status display control signal to the signal simulation load unit; the signal simulation load unit is used to light up the light according to the light position status display control signal; the signal control unit is also used to light up its own corresponding status light according to the lighting condition of the signal simulation load unit, so as to realize channel status visualization and simulate the operating environment corresponding to the signal function board; that is, the signal control unit will control the signal function board in itself to enter the corresponding working state according to the lighting condition of the signal simulation load unit.

[0072] S102. For each test control instruction, determine whether the light position state of the signal machine simulation load unit and the light position state of the signal machine control unit in the operating environment simulation device during the execution of the test control instruction match the test control instruction.

[0073] In practical applications, the light position state of the signal simulation load unit and the light position state of the signal control unit match the test control instruction, including: the light position state of the signal simulation load unit and the light position state of the signal control unit are the same as the test control instruction.

[0074] That is to say, under the premise of channel consistency, when the test control instruction is an instruction to control the light to be on, the light position state of the signal machine simulation load unit and the light position state of the signal machine control unit are both in the light on state; conversely, when the test control instruction is an instruction to control the light to be off, the light position state of the signal machine simulation load unit and the light position state of the signal machine control unit are both in the light off state.

[0075] If it is determined that the light position status of the signal machine simulation load unit and the light position status of the signal machine control unit in the operating environment simulation device during the execution of all control instructions match the test control instructions, step S103 can be executed; if it is determined that the light position status of the signal machine simulation load unit and the light position status of the signal machine control unit in the operating environment simulation device during the execution of at least one control instruction do not match the test control instruction, step S104 can be executed.

[0076] S103. Test that the signal function board is fully functional.

[0077] In actual applications, when it is determined that the light position status of the signal machine simulation load unit and the light position status of the signal machine control unit in the operating environment simulation device during the execution of all test control instructions match the test control instructions, that is, under what test instructions, the output status of the signal machine function board and the light position status of the signal machine simulation load unit are consistent with the test control instructions, it can be determined that the signal machine function board is fully functional.

[0078] S104. Testing shows that the signal function board is incomplete.

[0079] In actual applications, when it is determined that during the execution of at least one test control instruction, the light position status of the signal machine simulation load unit and the light position status of the signal machine control unit in the operating environment simulation device do not match the test control instruction, that is, during the test process, there is at least one test control instruction that makes the output state of the signal machine function board and the light position status of the signal machine simulation load unit inconsistent with the test control instruction, it can be determined that the function of the signal machine function board is incomplete.

[0080] It should be noted that, in combination with the above-mentioned operating environment simulation device of the signal machine function board, the test schematic diagram can be as follows: Figure 3 shown.

[0081] Based on the above, on the basis of the operating environment simulation device of the signal machine function board and combined with the above test method, the functional integrity test of the signal machine function board can be realized. That is to say, the operating environment simulation device of the signal machine function board can simulate the working state of the signal machine function board, and detect the functional integrity of the signal machine function board by building a simulated operating environment.

[0082] It is worth noting that in the existing signal machine function board testing method, the DS6-60 type full electronic computer interlocking system is generally built according to the minimum configuration, and a command is sent to the signal machine control module through the interlocking logic unit. The signal light display status is judged to be consistent with the command, and then the signal machine control module function is judged to be normal, and then the signal machine function board function is correct; or, according to the actual supply demand, the DS6-60 type full electronic computer interlocking system to be shipped is integrated and debugged in the factory first, and the signal machine control module function is judged to be normal by the intact function of the whole system, and then the signal machine function board function is correct. ; However, the above-mentioned existing methods all require building a system for the actual use of the signal function board, which occupies a large area and consumes manpower, material and financial resources. When spare parts need to be provided to the site or the signal function board returned from the site needs to be repaired, the existing testing methods will seriously affect the testing progress of the signal function board and reduce customer satisfaction. The present application only requires software simulation of the interlocking logic part, uses a signal simulation load unit to replace the signal function, and builds a simulation environment for the operation of the signal function board. In this environment, the integrity and availability of the tested signal function board are checked, thereby improving the testing efficiency of the product and the factory qualification rate of the product.

[0083] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can refer to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. The system and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without creative work.

[0084] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0085] In this application, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0086] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for simulating the operating environment of a signal machine function board, It is characterized in that include: A host computer, a power supply unit, a signal control unit and a signal simulation load unit, wherein the signal function board is arranged in the signal control unit; The power supply unit is respectively connected to the host computer, the signal control unit and the signal simulation load unit through power cables, and is used to supply power to the host computer, the signal control unit and the signal simulation load unit; The host computer is connected to the signal control unit via Ethernet, and is used to send test control instructions to the signal control unit; The signal control unit is used to generate a corresponding light position status display control signal according to the test control instruction; The signal machine simulation load unit is connected to the signal machine control unit via a load cable, and is used to light up the light according to the light position status display control signal; The signal control unit is also used to light up its own corresponding status light according to the lighting status of the signal simulation load unit, so as to realize the channel status visualization to simulate the operating environment corresponding to the signal function board.

2. The operating environment simulation device for the signal function board according to claim 1, It is characterized in that The signal control unit includes: the signal function board, the communication board, the terminal board and the motherboard; The signal machine function board is installed on one side of the motherboard, and the communication board and the terminal board are installed on the other side of the motherboard.

3. The operating environment simulation device for the signal function board according to claim 2, It is characterized in that The signal machine function board is installed on the T surface of the motherboard, and the communication board and the terminal board are installed on the B surface of the motherboard.

4. The operating environment simulation device for the signal function board according to claim 2, It is characterized in that The communication board, the terminal board and the motherboard are integrated into an auxiliary test board unit.

5. The operating environment simulation device for the signal function board according to claim 1, It is characterized in that The traffic light simulation load unit comprises: a preset number of input channels, each of which uses a light emitting diode to simulate the status of a traffic light position.

6. The operating environment simulation device for the signal function board according to claim 5, It is characterized in that The preset number of paths is 8.

7. The operating environment simulation device for a signal function board according to claim 1, It is characterized in that The power supply unit includes: a first power supply subunit and a second power supply subunit, the first power supply subunit is used to supply power to the host computer and the signal control unit, and the second power supply subunit is used to supply power to the signal control unit and the signal simulation load unit.

8. The operating environment simulation device for the signal function board according to claim 7, It is characterized in that The supply voltage of the first power subunit is greater than the supply voltage of the second power subunit.

9. The operating environment simulation device for a signal function board according to claim 1, It is characterized in that The host computer, the power supply unit, the signal control unit and the signal simulation load unit are integrated in the same group box.

10. A testing method, It is characterized in that The method is applied to a host computer in the operating environment simulation device of the signal function board according to any one of claims 1 to 9, and comprises: After receiving the test control instruction sent by the user, responding to the test control instruction, sending the test control instruction to the signal control unit in the operating environment simulation device; For each test control instruction, determining whether the light position state of the signal machine simulation load unit and the light position state of the signal machine control unit in the operating environment simulation device match the test control instruction during the execution of the test control instruction; If it is determined that the light position state of the signal machine simulation load unit and the light position state of the signal machine control unit in the operating environment simulation device during the execution of all the control instructions match the test control instruction, then it is tested that the signal machine function board is fully functional; If it is determined that the light position status of the signal machine simulation load unit in the operating environment simulation device and the light position status of the signal machine control unit do not match the test control instruction during at least one execution of the control instruction, it is tested that the function of the signal machine function board is incomplete.

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