Wireless measurement communication system based on VPX and design method thereof

Abstract

The invention relates to a VPX-based wireless measurement communication system design method, and belongs to the field of wireless communication. The method comprises the following steps of: designing an overall architecture of the system, and integrating a power supply module, a monitoring computer module, a data exchange module, an interface expansion module and a measurement and control communication function module into an industrial personal computer through a VPX bottom plate according to the requirements of the communication system; the method comprises the steps of power supply circuit design, physical address circuit design, management bus circuit design, program loading circuit design, time code bus circuit design, data bus circuit design, inter-board interconnection circuit design and interface expansion module design. According to the invention, the integrated design of functions of space-based telemetering, space-based remote control, safety control, external measurement, satellite positioning, image processing and the like is realized.

Description

Technical Field

[0001] The invention belongs to the field of wireless communications and relates to a VPX-based wireless measurement communication system and a design method thereof. Background Art

[0002] Traditional wireless communication systems are decentralized by function, using independent combinations of various types of subsystems or single machines to achieve measurement and control, data transmission, satellite positioning, Beidou timing and other functions, such as: channel subsystem, security control baseband subsystem, telemetry baseband subsystem, remote control baseband subsystem, display and monitoring subsystem, time system subsystem, test calibration subsystem, communication transmission subsystem, etc., and each independent combination of various types of subsystems or single machines are connected by complex high-frequency and low-frequency cables, which have defects such as single function, non-uniform system, and insufficient system reliability. The system has a complex structure, large size, inconvenient later maintenance, and is not conducive to equipment transportation. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a VPX-based wireless measurement and communication system and a design method thereof, to provide a universal, serialized, modularly designed device, to replace the traditional 19-inch combination chassis with a 6U VPX board, to replace the heavy cabinet with a portable industrial computer platform, to replace the cabinet wire interconnection with the backplane bus printed wire interconnection, to replace the dedicated data interface with a standard Ethernet interface, to replace the dedicated board with fixed functions with a universal board whose software can be updated and reconstructed online in real time, to realize the integrated design of space-based and ground-based telemetry, space-based remote control, security control, external measurement, satellite positioning, image processing and other functions, and can also be used for other similar projects.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A VPX-based wireless measurement communication system design method, comprising:

[0006] (1) Overall system architecture design: According to the communication system requirements, the power module, monitoring computer module, data exchange module, (input and output) interface expansion module and measurement and control communication function module are all integrated into an industrial computer through a standard VPX backplane;

[0007] (2) Power supply circuit design, using dual power supply modules to provide redundant power to other functional modules;

[0008] (3) Physical address circuit design: for functional modules with completely identical technical status, different physical addresses are assigned to different slots to distinguish them when they are inserted into the chassis at the same time;

[0009] (4) Management bus circuit design, monitoring computer module to query key health information such as voltage, current, temperature and working status of other functional modules;

[0010] (5) Program loading circuit design, monitoring computer module online update or solidification of other functional modules' programs, and realizing the software reconstruction function of functional modules;

[0011] (6) Design of time code bus circuit to achieve time code unification of all functional modules;

[0012] (7) Data bus circuit design, including PCIe bus and Gigabit Ethernet, to achieve high-speed data communication between the monitoring computer module and other functional modules;

[0013] (8) Inter-board interconnection circuit design to achieve high-speed data transmission between various functional modules;

[0014] (9) Interface expansion module design: to expand the interface of the functional module, which can be expanded into interfaces of different specifications according to different task requirements.

[0015] Furthermore, the overall architecture design of the system specifically includes: supplying power to other functional modules through redundant parallel connection of dual power supply modules; redundantly expanding the PCIe interface and Gigabit Ethernet interface of the dual monitoring computer module through dual data exchange modules to exchange data with other functional modules; allocating physical addresses to each slot of the VPX baseboard to realize the address definition of the functional module, and using the IIC bus protocol to realize the real-time monitoring of health information such as voltage, current, temperature and key parameters of software running status of other functional modules by the monitoring computer module; realizing visual observation of the running status of the functional module during the operation of the equipment through the transparent visual window of the front panel, and realizing the movable design of the front panel that can be flipped down and opened by tightening the screws that do not fall off and the limit hinges; realizing flexible assembly of the external interface of the equipment through a fixed standard interface panel and a movable and replaceable interface panel, wherein the electrical connector is installed from the inside to the outside, and the flanges of the electrical connector are all on the inside of the chassis panel, eliminating the work of re-welding the cables when the panel is replaced.

[0016] Furthermore, the power supply circuit design specifically includes: when using dual power supply modules for redundant power supply, the +5V, +12V, and +3.3V_Aux power supplies output by each AC-DC power supply module are connected in parallel through diodes on the VPX baseboard to prevent current backflow, and the power supply status of the equipment is monitored through grounding resistors and light-emitting diodes to improve the reliability of the power supply system.

[0017] Furthermore, the physical address circuit design specifically includes: in different slots, the physical addresses of functional modules with completely the same technical status are different, and the physical address is determined by the VPX baseboard connector socket J0 module GA[4:0] and GAP, which have two connection methods on the VPX baseboard, one is floating, representing 0, and the other is grounded, representing 1, and GAP is the odd parity of GA[4:0]; at the functional module end, GA[4:0] and GAP are respectively pulled up with 10kΩ resistors to +3.3V_Aux as the functional module to obtain the physical address input terminal.

[0018] Furthermore, the management bus circuit design specifically includes: the monitoring computer module polls the key health information such as voltage, current, temperature and working status of other functional modules through two IIC buses, wherein the monitoring computer module acts as the host and other functional modules act as slaves. The host sends out query instructions with physical addresses in sequence according to the slot order, and the slave receives the instruction and compares it with the local physical address. After the comparison is successful, the health information of itself is uploaded to the monitoring computer module; the IIC bus interface is defined by the VPX backplane connector socket J0 module SM[3:0], SM0 is defined as IIC_SCL1, SM1 is defined as IIC_SDA1, SM2 is defined as IIC_SCL2, and SM3 is defined as IIC_SDA2.

[0019] Furthermore, the program loading circuit design specifically includes: linking the VPX backplane connector socket J0 module TCK, TDO, TDI, TMS and TRST to the backplane, updating or curing the programs of other functional modules online through the monitoring computer module, realizing the functional module software reconstruction function, and realizing the Bypass mode by pulling up TRST to 47kΩ.

[0020] Furthermore, the time code bus circuit design specifically includes: unified timing of each functional module through IRIG_1PPS second pulse signal and IRIG_B000 time code signal, the signal form is RS485, terminated with 100Ω resistor, the clock source can be generated by the satellite positioning function module, output to the outside of the industrial computer through the interface expansion module to provide timing for other devices, or receive the IRIG_B000 code of the external device through the interface expansion module to provide timing for the standard functional module inside the device; both the IRIG_1PPS second pulse signal and the IRIG_B000 time code signal adopt a dual redundant design to improve system reliability.

[0021] Furthermore, the data bus circuit design specifically includes: defining the VPX backplane connector socket J1 module as a high-speed data bus module, which has two interface forms, PCIe interface and Gigabit Ethernet interface, to realize parameter setting, status upload and measurement and control data interaction functions between the monitoring computer module and other functional modules; when using the PCIe interface for communication, the monitoring computer module outputs 1 PCIe x16 signal to the data exchange module, which is divided into 5 PCIe x4 signals to other functional modules through the data exchange module, and the two PCIe links are independent of each other; when using the Gigabit Ethernet interface for communication, the network multicast method is reasonably used, and a local area network is established inside the device in a way that the dual data exchange modules serve as hot standby for each other. Any monitoring computer module can obtain data from all other functional modules from different data exchange modules, and can also set parameters for all other functions; in addition, the monitoring computer module each outputs two Gigabit Ethernets to the cloud, and the data exchange module each outputs one Gigabit Ethernet to the cloud, which further improves the reliability of parameter setting, status upload and measurement and control data interaction inside the device.

[0022] Furthermore, the inter-board interconnection circuit design specifically includes: the VPX baseboard provides a rich interconnection bus to achieve high-speed data transmission and input and output interface expansion capabilities between the front slots and between the front and rear slots; according to the module distinction, the VPX baseboard connector socket J2 and J5 modules are defined as inter-board differential interconnections to achieve serial connection between two adjacent left and right slots, and parallel connection between each slot; the VPX baseboard connector socket J3 module is defined as front and rear single-ended interconnection, the VPX baseboard connector socket J4 module is defined as front and rear differential interconnection, and the VPX baseboard connector socket J6 module is defined as front and rear radio frequency or optical fiber signal interconnection, which is used to transfer the input and output signals of the mainboard to the interface board and expand the input and output signal interface.

[0023] Furthermore, the interface expansion module design specifically includes: expanding some public signals on the device through the interface expansion module and transferring them to the rear panel of the device, and the interface form can be adapted according to the model requirements.

[0024] The beneficial effects of the present invention are: using the method of the present invention to develop a wireless measurement communication system has the following advantages:

[0025] (1) Effectively solved the defects such as inconsistent standards and insufficient system reliability.

[0026] (2) It effectively solves the problems of complex cable connections, inconsistent interface forms, high design costs and inconvenient subsequent maintenance in cabinet and combination designs.

[0027] (3) It effectively provides a universal, serialized, and modular hardware processing platform, standardizes the definition of single-module interfaces, and realizes the integrated design of functions such as space-based and ground-based telemetry, space-based remote control, security control, external measurement, satellite positioning, and image processing. It can also be used for other similar projects.

[0028] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0030] Figure 1 This is a diagram of the architecture of the wireless measurement communication system based on VPX of the present invention;

[0031] Figure 2 This is the power redundancy circuit diagram;

[0032] Figure 3 is the physical address circuit diagram;

[0033] Figure 4 To monitor and manage signal topology;

[0034] Figure 5 It is the time signal topology diagram;

[0035] Figure 6 It is the PCIe topology diagram;

[0036] Figure 7 This is a Gigabit Ethernet topology diagram;

[0037] Figure 8 This is the topology diagram of the interconnection signals between boards. DETAILED DESCRIPTION

[0038] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0039] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0040] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0041] See also Figures 1 to 8 The present invention provides a VPX-based wireless measurement communication system design method, comprising:

[0042] (1) System overall architecture design. The measurement and communication system includes a power supply module, a monitoring computer module, a data exchange module, an (input and output) interface expansion module, and a measurement and control communication function module.

[0043] The overall system architecture design specifically includes: according to the measurement and communication system requirements, the power supply module, monitoring computer module, data exchange module, (input and output) interface expansion module and measurement and control communication function module are all integrated into an industrial computer through the standard VPX backplane, such as Figure 1 As shown. The dual power supply modules are connected in parallel to provide power to other functional modules redundantly; the dual data exchange modules are used to redundantly expand the PCIe interface and Gigabit Ethernet interface of the dual monitoring computer module to exchange data with other functional modules; the physical addresses are allocated to each slot of the VPX baseboard to define the address of the functional module, and the IIC bus protocol is used to implement the real-time monitoring of the health information of other functional modules such as voltage, current, temperature and key parameters of software operation status by the monitoring computer module; the transparent visual window of the front panel is used to observe the operation status of the functional module during the operation of the equipment, and the front panel is flipped down and opened by tightening the screws and the limit hinges; the flexible assembly of the external interface of the equipment is realized by the fixed standard interface panel and the movable and replaceable interface panel, in which the electrical connector is installed from the inside to the outside, and the flange of the electrical connector is on the inside of the chassis panel, minus the cable re-welding work when the panel is replaced.

[0044] (2) The power supply circuit design uses dual power supply modules to redundantly supply power to other functional modules.

[0045] The power supply circuit design specifically includes: when using dual power modules for redundant power supply, the +5V, +12V, and +3.3V_Aux power supplies output by the AC-DC power modules are connected in parallel through diodes on the VPX backplane (see Figure 2 ) to prevent current backflow, and monitor the power supply status of the equipment through grounding resistors and light-emitting diodes to improve the reliability of the power supply system.

[0046] (3) Physical address circuit design: for functional modules with completely identical technical status, when they are inserted into the chassis and work at the same time, they are distinguished by different physical addresses assigned to different slots.

[0047] The physical address circuit design specifically includes: in different slots, the physical addresses of functional modules with the same technical status are different. The physical address is determined by the VPX backplane connector socket J0 module GA[4:0] and GAP. There are two ways to connect it on the VPX backplane, one is floating, representing 0, and the other is grounded, representing 1. GAP is the odd parity of GA[4:0]. At the functional module end, GA[4:0] and GAP are pulled up by 10kΩ resistors to +3.3V_Aux respectively, as the functional module to obtain the physical address input terminal (see Figure 3 ).

[0048] (4) Management bus circuit design, including:

[0049] The monitoring computer module polls the key health information such as voltage, current, temperature and working status of other functional modules through two IIC buses. The monitoring computer module acts as the host and other functional modules act as slaves. The host sends query instructions with physical addresses in order of slots. The slave receives the instructions and compares them with the local physical address. After the comparison is successful, it uploads its own health information to the monitoring computer module. The IIC bus interface is defined by the VPX backplane connector socket J0 module SM[3:0], SM0 is defined as IIC_SCL1, SM1 is defined as IIC_SDA1, SM2 is defined as IIC_SCL2, and SM3 is defined as IIC_SDA2 (see Figure 4 ).

[0050] (5) Program loading circuit design, monitoring computer module online update or solidification of other functional modules' programs, to achieve the functional module software reconstruction function.

[0051] The program loading circuit design specifically includes: connecting the VPX backplane connector socket J0 module TCK, TDO, TDI, TMS and TRST to the backplane, updating or curing the programs of other functional modules online through the monitoring computer module, realizing the functional module software reconstruction function, and realizing the Bypass mode by pulling up TRST to 47kΩ.

[0052] (6) Time code bus circuit design to achieve time code unification of all functional modules.

[0053] The time code bus circuit design specifically includes: unified timing of each functional module through IRIG_1PPS second pulse signal and IRIG_B000 time code signal, the signal form is RS485, terminated with 100Ω resistor, the clock source can be generated by the satellite positioning function module, output to the industrial computer through the interface expansion module to provide timing for other devices, and can also receive the IRIG_B000 code of the external device through the interface expansion module to provide timing for the internal standard functional module of the device; both IRIG_1PPS second pulse signal and IRIG_B000 time code signal adopt dual redundant design to improve system reliability (see Figure 5 ).

[0054] (7) Data bus circuit design, including PCIe bus and Gigabit Ethernet, to achieve high-speed data communication between the monitoring computer module and other functional modules.

[0055] The data bus circuit design specifically includes: defining the VPX backplane connector socket J1 module as a high-speed data bus module, which has two interface forms: PCIe interface and Gigabit Ethernet interface, to realize the parameter setting, status upload and measurement and control data interaction functions between the monitoring computer module and other functional modules; when using the PCIe interface for communication, the monitoring computer module outputs 1 PCIe x16 signal to the data exchange module, which is divided into 5 PCIe x4 signals to other functional modules through the data exchange module, and the two PCIe links are independent of each other (see Figure 6 ); When using the Gigabit Ethernet interface for communication, make reasonable use of the network multicast method, and use the dual data exchange modules as hot standby to form a local area network inside the device (see Figure 7 ), any monitoring computer module can obtain data from all other functional modules from different data exchange modules, and can also set parameters for all other functions; in addition, the monitoring computer modules each output two Gigabit Ethernet links to the cloud, and the data exchange modules each output one Gigabit Ethernet link to the cloud, further improving the reliability of internal parameter settings, status uploads, and measurement and control data interaction of the equipment.

[0056] (8) Inter-board interconnection circuit design to achieve high-speed data transmission between various functional modules.

[0057] The inter-board interconnection circuit design specifically includes: the VPX backplane provides a rich interconnection bus to achieve high-speed data transmission and input and output interface expansion capabilities between the front slots and between the front and rear slots; according to the module distinction, the VPX backplane connector socket J2 and J5 modules are defined as inter-board differential interconnection to achieve serial connection between two adjacent left and right slots, and parallel connection between each slot; the VPX backplane connector socket J3 module is defined as front and rear single-ended interconnection, the VPX backplane connector socket J4 module is defined as front and rear differential interconnection, and the VPX backplane connector socket J6 module is defined as front and rear RF or optical fiber signal interconnection, which is used to transfer the input and output signals of the mainboard to the interface board and expand the input and output signal interface (see Figure 8 ).

[0058] (9) Interface expansion module design: to expand the interface of the functional module, which can be expanded into interfaces of different specifications according to different task requirements.

[0059] The interface expansion module design specifically includes: expanding some public signals on the device through the interface expansion module and transferring them to the rear panel of the device, and the interface form can be adapted according to the model requirements.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A method for designing a wireless measurement communication system based on VPX, characterized in that: The method includes: (1) System overall architecture design: According to the communication system requirements, the power module, monitoring computer module, data exchange module, interface expansion module and measurement and control communication function module are all integrated into an industrial computer through the VPX backplane; (2) Power supply circuit design, using dual power supply modules to provide redundant power to other functional modules; (3) Physical address circuit design: for functional modules with completely identical technical status, different physical addresses are assigned to different slots to distinguish them when they are inserted into the chassis at the same time; (4) Management bus circuit design, monitoring computer module to query the voltage, current, temperature and working status of other functional modules; (5) Program loading circuit design, monitoring computer module online update or solidification of other functional modules' programs, and realizing the software reconstruction function of functional modules; (6) Design of time code bus circuit to achieve time code unification of all functional modules; (7) Data bus circuit design, including PCIe bus and Gigabit Ethernet, to achieve high-speed data communication between the monitoring computer module and other functional modules; (8) Inter-board interconnection circuit design to achieve high-speed data transmission between various functional modules; (9) Interface expansion module design: expand the interface of the functional module and expand it into interfaces of different specifications according to different task requirements.

2. The VPX-based wireless measurement communication system design method according to claim 1, characterized in that: The overall architecture design of the system specifically includes: supplying power to other functional modules through redundant parallel connection of dual power supply modules; redundantly expanding the PCIe interface and Gigabit Ethernet interface of the dual monitoring computer module through dual data exchange modules to exchange data with other functional modules; allocating physical addresses to each slot of the VPX baseboard to realize the address definition of the functional module, and using the IIC bus protocol to realize the real-time monitoring of the voltage, current, temperature and software running status of other functional modules by the monitoring computer module.

3. The VPX-based wireless measurement communication system design method according to claim 1 or 2, characterized in that: The power supply circuit design specifically includes: when using dual power supply modules for redundant power supply, the +5V, +12V, and +3.3V_Aux power supplies output by each AC-DC power supply module are connected in parallel through diodes on the VPX baseboard to prevent current backflow, and the power supply status of the equipment is monitored through grounding resistors and light-emitting diodes.

4. The VPX-based wireless measurement communication system design method according to claim 1, characterized in that: The physical address circuit design specifically includes: in different slots, the physical addresses of functional modules with completely the same technical status are different, and the physical address is determined by the VPX baseboard connector socket J0 module GA[4:0] and GAP, which has two connection methods on the VPX baseboard, one is floating, representing 0, and the other is grounded, representing 1, and GAP is the odd parity of GA[4:0]; at the functional module end, GA[4:0] and GAP are respectively pulled up with 10kΩ resistors to +3.3V_Aux as the functional module to obtain the physical address input terminal.

5. The VPX-based wireless measurement communication system design method according to claim 1, characterized in that: The management bus circuit design specifically includes: the monitoring computer module polls the voltage, current, temperature and working status of other functional modules through two IIC buses, wherein the monitoring computer module serves as the host and other functional modules serve as slaves. The host sends out query instructions with physical addresses in sequence according to the slot order, and the slave receives the instruction and compares it with the local physical address. After the comparison is successful, the slave uploads its own health information to the monitoring computer module; the IIC bus interface is defined by the VPX backplane connector socket J0 module SM[3:0], SM0 is defined as IIC_SCL1, SM1 is defined as IIC_SDA1, SM2 is defined as IIC_SCL2, and SM3 is defined as IIC_SDA2.

6. The VPX-based wireless measurement communication system design method according to claim 1, characterized in that: The program loading circuit design specifically includes: connecting the VPX backplane connector socket J0 module TCK, TDO, TDI, TMS and TRST to the backplane, updating or curing the programs of other functional modules online through the monitoring computer module, realizing the functional module software reconstruction function, and realizing the Bypass mode by pulling up TRST to 47kΩ.

7. The VPX-based wireless measurement communication system design method according to claim 1, characterized in that: The time code bus circuit design specifically includes: unified timing of each functional module through IRIG_1PPS second pulse signal and IRIG_B000 time code signal, the signal form is RS485, terminated with 100Ω resistor, the clock source is generated by the satellite positioning function module, and output to the outside of the industrial computer through the interface expansion module to provide timing for other devices, or receive the IRIG_B000 code of the external device through the interface expansion module to provide timing for the standard functional module inside the device; both the IRIG_1PPS second pulse signal and the IRIG_B000 time code signal adopt a dual redundant design.

8. The VPX-based wireless measurement communication system design method according to claim 1, characterized in that: The data bus circuit design specifically includes: defining the VPX baseboard connector socket J1 module as a high-speed data bus module, which has two interface forms, PCIe interface and Gigabit Ethernet interface, to realize parameter setting, status upload and measurement and control data interaction functions between the monitoring computer module and other functional modules; when using the PCIe interface for communication, the monitoring computer module outputs 1 PCIex16 signal to the data exchange module, which is divided into 5 PCIe x4 signals to other functional modules through the data exchange module, and the two PCIe links are independent of each other; when using the Gigabit Ethernet interface for communication, the network multicast method is reasonably used, and a local area network is established inside the device in a hot standby manner with dual data exchange modules. Any monitoring computer module can obtain data from all other functional modules from different data exchange modules, and can also set parameters for all other functions; in addition, the monitoring computer module each outputs two Gigabit Ethernets to the cloud, and the data exchange module each outputs one Gigabit Ethernet to the cloud.

9. The VPX-based wireless measurement communication system design method according to claim 1, characterized in that: The inter-board interconnection circuit design specifically includes: the VPX baseboard provides an interconnection bus to achieve high-speed data transmission and input and output interface expansion capabilities between the front slots and between the front and rear slots; according to the module distinction, the VPX baseboard connector socket J2 and J5 modules are defined as inter-board differential interconnections to achieve serial connection between two adjacent left and right slots, and parallel connection between each slot; the VPX baseboard connector socket J3 module is defined as front and rear single-ended interconnection, the VPX baseboard connector socket J4 module is defined as front and rear differential interconnection, and the VPX baseboard connector socket J6 module is defined as front and rear radio frequency or optical fiber signal interconnection, which is used to transfer the input and output signals of the mainboard to the interface board and expand the input and output signal interface.

10. The VPX-based wireless measurement communication system design method according to claim 1, characterized in that: The interface expansion module design specifically includes: expanding some public signals on the device through the interface expansion module and transferring them to the rear panel of the device, and adapting the interface form according to the model requirements.

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