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CN119555977B - A universal satellite power supply and distribution equivalent device - Google Patents

A universal satellite power supply and distribution equivalent device

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Publication number
CN119555977B
CN119555977B CN202411593143.8A CN202411593143A CN119555977B CN 119555977 B CN119555977 B CN 119555977B CN 202411593143 A CN202411593143 A CN 202411593143A CN 119555977 B CN119555977 B CN 119555977B
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CN
China
Prior art keywords
equivalent
optical isolation
power supply
board
positive
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Application number
CN202411593143.8A
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Chinese (zh)
Other versions
CN119555977A (en
Inventor
杨振宇
李天楠
王跃
訚梦楠
李健鑫
李勇
封硕
杨宏宇
高何
张巍
于忠江
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China Academy of Space Technology CAST
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China Academy of Space Technology CAST
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Application filed by China Academy of Space Technology CAST filed Critical China Academy of Space Technology CAST
Priority to CN202411593143.8A priority Critical patent/CN119555977B/en
Publication of CN119555977A publication Critical patent/CN119555977A/en
Application granted granted Critical
Publication of CN119555977B publication Critical patent/CN119555977B/en
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Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electronic Switches (AREA)

Abstract

The invention discloses a satellite universal power supply and distribution equivalent device. When the power supply and distribution ground equipment is verified, the industrial personal computer generates a control instruction through the liquid crystal screen or the external equipment and transmits the instruction to the singlechip on the motherboard, the singlechip on the motherboard receives the instruction and then generates a passage selection instruction and a function selection instruction, the passage selection instruction is sent to the switch matrix sub-board and the function selection instruction is sent to the function equivalent sub-board, the switch matrix sub-board receives the passage selection instruction and then turns on or off the corresponding optical isolation FET to realize the passage selection function, and the function equivalent sub-board drives the optical isolation FET to turn on or off to select the corresponding equivalent module after receiving the function selection instruction. Therefore, the functional equivalent daughter board can simulate the satellite to receive the wired command and monitor the correctness of the command, simulate the transmission of a wired telemetry signal on the satellite, monitor the power supply voltage of the split array power supply or the centralized power supply, and detect whether the functional performance of the ground equipment is normal or not.

Description

Satellite universal power supply and distribution equivalent device
Technical Field
The invention relates to the technical field of satellite power supply and distribution equivalents, in particular to a satellite universal power supply and distribution equivalent which is used for verifying the functional performance of satellite power supply and distribution ground equipment.
Background
The satellite power supply and distribution equivalent device is connected with the power supply and distribution system, and the hardware and software design correctness and interface coordination of the ground power supply and distribution test equipment are verified by simulating power supply, measurement and control signals of the satellite, so that the reliable and stable work of the power supply and distribution ground equipment is ensured.
The satellite equivalent device is developed based on the contact distribution of the separated electric connector, and the conventional method is to design a special satellite equivalent device for each satellite, and has no universality because the power supply, the key wired instruction and the parameter measurement requirements of the ground of the current satellite under study are very different. An improvement scheme is to develop and separate the transfer cable from the electric connector to the satellite equivalent device for satellites with different technical states so as to achieve the purpose of multiplexing the satellite equivalent device, but each satellite with different technical states still needs to design the transfer cable, thereby increasing the workload of a designer, and the functions of the existing equivalent device can not meet the requirements of some newly developed satellites. Each model is provided with a respective satellite equivalent device or a corresponding transfer cable, so that the storage management and the searching are inconvenient to use and the resource waste is caused.
Therefore, there is a strong need in the art for a universal satellite power supply and distribution equivalent device with strong expansibility.
Disclosure of Invention
The invention provides a satellite universal power supply and distribution equivalent device, which realizes the generalization of the satellite power supply and distribution equivalent device through the application of a switch matrix, has strong expansibility and meets the application requirements of the satellite power supply and distribution equivalent device.
The first aspect provides a satellite universal power supply and distribution equivalent device, which comprises a motherboard, a switch matrix daughter board, a functional equivalent daughter board and a power supply electronic board, wherein the switch matrix daughter board, the functional equivalent daughter board and the power supply electronic board are all spliced on the motherboard;
the switch matrix daughter board comprises a first positive bus and a first negative bus, the first positive bus of the switch matrix daughter board is connected with the second positive bus of the functionally equivalent daughter board through a motherboard, the first negative bus of the switch matrix daughter board is connected with the second negative bus of the functionally equivalent daughter board through the motherboard, and the functionally equivalent daughter board is used for simulating a satellite to receive a wired instruction and monitor the correctness of the instruction, simulating the transmission of a wired telemetry signal on the satellite, and monitoring the power supply voltage of the distributed power supply or the centralized power supply so as to detect whether the functional performance of ground equipment is normal;
n types of positive terminals are arranged on the positive light isolation circuit, are connected through a first positive bus and are electrically connected with the positive output terminals of the board card of the switch matrix sub-board; N types of negative terminals are arranged on the negative optical isolation circuit, are connected through a first negative terminal bus and are electrically connected with the board card output negative terminal of the switch matrix sub-board, and are in one-to-one correspondence with N types of negative terminals;
An optical isolation FETi + and an optical isolation FETi-are arranged between the ith positive electrode terminal and the ith negative electrode terminal, wherein a first end of the optical isolation FETi + is electrically connected with the ith positive electrode terminal, a second end of the optical isolation FETi + is electrically connected with a first end of the optical isolation FETi-, a second end of the optical isolation FETi-is electrically connected with the ith negative electrode terminal, and an ith passage terminal is led out between the second end of the optical isolation FETi + and the first end of the optical isolation FETi-, wherein i is more than or equal to 1 and less than or equal to N.
With reference to the first aspect, in some implementations of the first aspect, when the optical isolation FETa + and the optical isolation FETb-are controlled to be on, 1+.a≤n, 1+.b≤n, and a+.b, the ground power supply and distribution test device is connected to the first positive bus through an a-th positive terminal and then to the second positive bus of the functionally equivalent sub-board, and the ground power supply and distribution test device is connected to the first negative bus through a b-th negative terminal and then to the second negative bus of the functionally equivalent sub-board, so that the power supply and distribution ground device is connected to the equivalent module of the functionally equivalent sub-board through the a-th and b-th via terminals of the switch matrix sub-board.
With reference to the first aspect, in some implementations of the first aspect, the power supply and distribution equivalent apparatus further includes an industrial personal computer, where the industrial personal computer is configured to control a conductive state of the switch matrix sub-board.
With reference to the first aspect, in certain implementations of the first aspect, the switch matrix sub-board further includes an FPGA and a decoder, the optical isolation FET is driven by the decoder, and the FPGA provides control signals for the decoder.
In combination with the first aspect, in some implementations of the first aspect, the functionally equivalent sub-board comprises a second positive-side bus, a second negative-side bus and M equivalent modules which are different from each other, wherein M second-class positive-side terminals are arranged on the positive optical isolation circuit, are connected through the second positive-side bus and are electrically connected with the board card output positive terminals of the switch matrix board;
An optical isolation FETj +, an optical isolation FETj-and a j-th equivalent module are arranged between the j-th second positive terminal and the j-th second negative terminal, wherein a first end of the optical isolation FETj + is electrically connected with the j-th second positive terminal, a second end of the optical isolation FETj + is electrically connected with the first end of the j-th equivalent module, a second end of the j-th equivalent module is electrically connected with the first end of the optical isolation FETj-, and a second end of the optical isolation FETj-is electrically connected with the j-th second negative terminal, and j is more than or equal to 1 and less than or equal to M.
With reference to the first aspect, in some implementations of the first aspect, if the optical isolation FETc + is controlled to be on with the optical isolation FETc-, 1 c≤m, the ground power supply and distribution test device is connected to the c-th equivalent module of the functionally equivalent sub-board through the switch matrix sub-board.
With reference to the first aspect, in some implementations of the first aspect, the M equivalent modules of the functionally equivalent sub-board include a power supply/28V instruction equivalent module, an analog equivalent module, a passive instruction equivalent module, and a passive state equivalent module;
the positive end of the power supply/28V instruction equivalent module is connected with an optical isolator FETA +, the other end of the optical isolator FETA + is connected with a second positive end bus of the functional equivalent sub-board, the negative end of the power supply/28V instruction equivalent module is connected with an optical isolator FETA-, and the other end of the optical isolator FETA-is connected with a second negative end bus of the functional equivalent sub-board;
The positive end of the analog quantity equivalent module is connected with an optical isolator FETB +, the other end of the optical isolator FETB + is connected with a second positive end bus of the functional equivalent sub-board, the negative end of the analog quantity equivalent module is connected with an optical isolator FETB-, and the other end of the optical isolator FETB-is connected with a second negative end bus of the functional equivalent sub-board;
The positive end of the passive instruction equivalent module is connected with an optical isolator FETC +, the other end of the optical isolator FETC + is connected with a second positive end bus of the functional equivalent sub-board, the negative end of the passive instruction equivalent module is connected with an optical isolator FETC-, and the other end of the optical isolator FETC-is connected with a second negative end bus of the functional equivalent sub-board;
the positive end of the passive state equivalent module is connected with the optical isolation FETD +, the other end of the optical isolation FETB + is connected with the second positive end bus of the functional equivalent sub-board, the negative end of the passive state equivalent module is connected with the optical isolation FETD-, and the other end of the optical isolation FETD-is connected with the second negative end bus of the functional equivalent sub-board.
With reference to the first aspect, in certain implementation manners of the first aspect, the power supply and distribution equivalent apparatus further includes a liquid crystal screen and an industrial personal computer;
when the power supply and distribution ground equipment is verified, the industrial personal computer generates a control instruction through the liquid crystal screen or external equipment and transmits the instruction to the singlechip on the motherboard;
after receiving the instruction, the singlechip on the motherboard generates a passage selection instruction and a function selection instruction, and sends the passage selection instruction to the FPGA of the switch matrix daughter board, and sends the function selection instruction to the FPGA of the functionally equivalent daughter board;
after receiving the channel selection instruction, the FPGA of the switch matrix sub-board drives the decoder to turn on or off the corresponding light isolation FET so as to realize the channel selection function;
and after receiving the function selection instruction, the FPGA of the functional equivalent sub-board drives the optical isolation FET to be turned on or off so as to select a corresponding equivalent module.
With reference to the first aspect, in some implementations of the first aspect, signals generated by the equivalent module are transmitted to the power supply and distribution ground equipment through the optical isolation FET corresponding to the equivalent module, the second positive side bus and the second negative side bus of the functional equivalent sub-board, the motherboard, the first positive side bus and the first negative side bus of the switch matrix sub-board, and the terminals of the optical isolation FET and the switch matrix sub-board that are conducted by the switch matrix sub-board, and whether the power supply and distribution ground equipment is normal is judged according to the state of the power supply and distribution ground equipment.
With reference to the first aspect, in some implementations of the first aspect, signals generated by the power supply and distribution ground device are sent to corresponding equivalent modules after passing through terminals of the switch matrix sub-board, the optical isolation FET conducted by the switch matrix sub-board, a first positive side bus and a first negative side bus of the switch matrix sub-board, the motherboard, and a second positive side bus and a second negative side bus of the functional equivalent sub-board, and the equivalent modules determine whether the power supply and distribution ground device works normally according to the received signals.
Compared with the prior art, the scheme provided by the invention at least comprises the following beneficial technical effects:
(1) The invention adopts the switch matrix daughter board to select the path to be tested, is not limited by the distribution of the contact points of the separated electric connector when the power supply and distribution ground equipment is verified, is suitable for the power supply and distribution equivalent of any satellite, reduces the cost of manpower and material resources for developing the cable, and shortens the test preparation time.
(2) The invention adopts a mode of combining the switch matrix sub-board and the functional equivalent sub-board, each signal in the functional equivalent sub-board only needs to be manufactured in one path, the number of the signals does not need to be corresponding to that of the satellites, the volume and the weight of the equipment are reduced, and the suitability is strong.
(3) The invention adopts the form of plugging the mother board and the daughter board, has strong expansibility, and can finish the transformation and upgrading of the equivalent device by adding the new functional daughter board to be plugged on the mother board when the satellite has new functions to be simulated.
Drawings
Fig. 1 is a system block diagram of a satellite-generic power supply and distribution equivalent.
Fig. 2 is a schematic diagram of the structure of a satellite-generic power supply and distribution equivalent.
Fig. 3 is a schematic diagram of a switch matrix daughter board power circuit.
Fig. 4 is a schematic diagram of a drive circuit for the photo-isolation FET.
Fig. 5 is a schematic block diagram of a functionally equivalent daughter board.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific embodiments.
Referring to fig. 1 and 2, fig. 1 is a system block diagram of the present invention, and fig. 2 is a schematic structural diagram of the present invention.
As can be seen from fig. 1 and 2, the satellite universal power supply and distribution equivalent device comprises a universal split plug patch cable, a chassis, a liquid crystal display, an industrial personal computer, a motherboard, a switch matrix daughter board, a functional equivalent daughter board and a power supply and electronic board.
One end of the universal separating plug can be a YF8-64Z electric connector which is connected with a separating plug of a satellite arrow cable, and the other end of the universal separating plug can be 1J 14-74TK electric connector which is connected with a terminal of a switch matrix daughter board. The liquid crystal screen is fixed on the front side of the case and is connected with the industrial personal computer. The industrial personal computer is fixed at the rear part of the liquid crystal screen and used for user interaction, data processing and storage, interface display, remote command processing and the like, and is communicated with the singlechip on the motherboard and external equipment through the LAN interface. The switch matrix daughter board, the functional equivalent daughter board and the power supply electronic board are all inserted on the mother board. The power supply electronic board is used for supplying power to the motherboard and supplying power to the switch matrix daughter board and the functional equivalent daughter board through the motherboard. And the switch matrix daughter board and the functionally equivalent daughter board perform information interaction through the mother board.
In one embodiment, the switch matrix sub-board includes a first positive side bus and a first negative side bus. N types of positive terminals are arranged on the positive light isolation circuit, are connected through a first positive bus and are electrically connected with the positive output terminals of the board card of the switch matrix sub-board. N types of negative terminals are arranged on the negative optical isolation circuit, are connected through a first negative terminal bus and are electrically connected with the board card output negative terminal of the switch matrix board. The N positive terminals are in one-to-one correspondence with the N negative terminals.
An optical isolation FETi + and an optical isolation FETi-are arranged between the ith positive electrode terminal (1≤i≤N) and the ith negative electrode terminal, wherein a first end of the optical isolation FETi + is electrically connected with the ith positive electrode terminal, a second end of the optical isolation FETi + is electrically connected with a first end of the optical isolation FETi-, and a second end of the optical isolation FETi-is electrically connected with the ith negative electrode terminal. An ith via terminal is routed between optical isolator FETi + and optical isolator FETi-. That is, the ith via terminal is routed between the second end of optical isolator FETi + and the first end of optical isolator FETi-.
Referring to fig. 3, the switch matrix sub-board is composed of photo-isolation FETs to form a power circuit, 64 paths are provided, each path is provided with 2 photo-isolation FETs, and different loops are selected by controlling the on and off of different photo-isolation FETs. For example, turning on photo-isolation FETs 1+ and 2-, connecting channel 1 to the first positive side bus, and channel 2 to the first negative side bus, and turning on photo-isolation FETs 1-and 2+, connecting channel 1 to the first negative side bus, and connecting channel 2 to the first positive side bus.
In one embodiment, referring to fig. 4, the switch matrix sub-board further includes an FPGA and a decoder. The photo-isolation FET is driven by the decoder, and the FPGA provides control signals for the decoder, so that the switch matrix sub-board selects a tested passage from a plurality of passages.
The functional equivalent daughter board can simulate the satellite to receive the wired command and monitor the correctness of the command, simulate the transmission of a wired telemetry signal on the satellite, monitor the power supply voltage of the split array power supply or the centralized power supply, and detect whether the communication between the satellite and the ground equipment is normal or not.
In a specific embodiment, the functionally equivalent sub-board includes a second positive side bus, a second negative side bus, and M equivalent modules that are different from each other. M second-class positive terminal are arranged on the positive optical isolation circuit, connected through a second positive bus and electrically connected with the positive output terminal of the board card of the switch matrix sub-board. M second-class negative terminals are arranged on the negative optical isolation circuit, are connected through a second negative terminal bus and are electrically connected with the board card output negative terminal of the switch matrix board. The M second-class positive terminal corresponds to the M second-class negative terminal one by one.
An optical isolation FETj +, an optical isolation FETj-and a j-th equivalent module are arranged between the j-th second positive terminal (1≤j≤M) and the j-th second negative terminal, wherein the first end of the optical isolation FETj + is electrically connected with the j-th second positive terminal, the second end of the optical isolation FETj + is electrically connected with the first end of the j-th equivalent module, the second end of the j-th equivalent module is electrically connected with the first end of the optical isolation FETj-and the second end of the optical isolation FETj-is electrically connected with the j-th second negative terminal.
Referring to fig. 5, the M equivalent modules of the functionally equivalent sub-board may include a power supply/28V instruction equivalent module, an analog equivalent module, a passive instruction equivalent module, and a passive state equivalent module.
The positive end of the power supply/28V instruction equivalent module is connected with the optical isolator FETA +, the other end of the optical isolator FETA + is connected with the second positive end bus of the functional equivalent sub-board, the negative end of the power supply/28V instruction equivalent module is connected with the optical isolator FETA-, and the other end of the optical isolator FETA-is connected with the second negative end bus of the functional equivalent sub-board.
The positive end of the analog quantity equivalent module is connected with the optical isolation FETB +, the other end of the optical isolation FETB + is connected with the second positive end bus of the functional equivalent sub-board, the negative end of the analog quantity equivalent module is connected with the optical isolation FETB-, and the other end of the optical isolation FETB-is connected with the second negative end bus of the functional equivalent sub-board.
The positive end of the passive instruction equivalent module is connected with the optical isolator FETC +, the other end of the optical isolator FETC + is connected with the second positive end bus of the functional equivalent sub-board, the negative end of the passive instruction equivalent module is connected with the optical isolator FETC-, and the other end of the optical isolator FETC-is connected with the second negative end bus of the functional equivalent sub-board.
The positive end of the passive state equivalent module is connected with the optical isolation FETD +, the other end of the optical isolation FETB + is connected with the second positive end bus of the functional equivalent sub-board, the negative end of the passive state equivalent module is connected with the optical isolation FETD-, and the other end of the optical isolation FETD-is connected with the second negative end bus of the functional equivalent sub-board.
The second positive side bus of the functional equivalent sub-board is connected with the first positive side bus of the switch matrix sub-board through the motherboard, and the second negative side bus of the functional equivalent sub-board is connected with the first negative side bus of the switch matrix sub-board through the motherboard. Different loops are selected by controlling the on and off of different photo-isolation FETs.
For the switch matrix sub-board, when the power supply and distribution ground equipment is connected to an a-th channel terminal and a b-th channel terminal of the switch matrix sub-board (1 is less than or equal to a is less than or equal to N,1 is less than or equal to b is less than or equal to N, a is less than or equal to b is not less than b), if the optical isolation FETa + and the optical isolation FETb-are controlled to be conducted, the ground power supply and distribution test equipment is connected to a first positive-side bus through the a-th channel terminal and then connected to a second positive-side bus of the functional equivalent sub-board, and the ground power supply and distribution test equipment is connected to a first negative-side bus through the b-th channel terminal and then connected to a second negative-side bus of the functional equivalent sub-board.
For the functional equivalent sub-board, if the optical isolation FETc + and the optical isolation FETc-are controlled to be conducted (c is more than or equal to 1 and less than or equal to M), the ground power supply and distribution test equipment is connected to the c-th equivalent module of the functional equivalent sub-board through the switch matrix sub-board.
When the power supply and distribution ground equipment is verified, the industrial personal computer generates a control instruction through the liquid crystal screen or the external equipment, the instruction is transmitted to the singlechip on the motherboard, after the singlechip on the motherboard receives the instruction, a channel selection instruction and a function selection instruction are generated, the channel selection instruction is transmitted to the FPGA of the switch matrix sub-board, the function selection instruction is transmitted to the FPGA of the function equivalent sub-board, after the FPGA of the switch matrix sub-board receives the channel selection instruction, the decoder is driven to conduct or disconnect the corresponding optical isolation FET, so as to realize the channel selection function, the FPGA of the function equivalent sub-board drives the optical isolation FET to conduct or disconnect the corresponding equivalent module, signals generated by the equivalent module are transmitted to the power supply ground equipment through the optical isolation FET corresponding to the equivalent module, the second positive end bus of the second equivalent sub-board, the first positive end bus of the motherboard and the switch matrix sub-board, the optical isolation FET conducting with the first negative end bus of the switch matrix sub-board, the universal plug switching cable and the star arrow cable are transmitted to the power supply ground equipment, and the power supply ground equipment is judged according to the state of the power supply and distribution equipment, and the power supply ground equipment is normally connected to the corresponding optical isolation FET through the second positive end bus and the second end bus of the second equivalent sub-board, and the normal signal of the power supply and power supply ground equipment is judged to the normal and the power supply ground equipment through the corresponding signal is connected to the second positive and the second end bus and the second equivalent bus and the power equipment.
A typical service scenario is described below. The equivalent device simulates the analog function of the satellite, the positive point of the loop is 6, and the negative point is 4:
1. the industrial personal computer generates an analog quantity equivalent (+ 6, -4) instruction through a liquid crystal screen or external equipment, and transmits the instruction to the singlechip on the motherboard;
2. after receiving an analog quantity equivalent (+6, -4) instruction, a singlechip on a motherboard generates a passage selection instruction "(+6, -4) and a function selection instruction" analog quantity equivalent ", sends the passage selection instruction" (+6, -4) "to an FPGA of a switch matrix daughter board, and sends the function selection instruction" analog quantity equivalent "to the FPGA of the function equivalent daughter board;
3. After receiving a channel selection instruction "(+6, -4)" from the FPGA of the switch matrix board, the FPGA drives the decoder to conduct the photo-isolation FET6+ and the photo-isolation FET4-, and disconnect the rest of the photo-isolation FETs, so that a point 6 of the electric connector is connected with a first positive-side bus of the switch matrix board, and a point 4 of the electric connector is connected with a first negative-side bus of the switch matrix board, thereby realizing a channel selection function;
4. After receiving a function selection instruction 'analog quantity equivalent', the FPGA of the functional equivalent sub-board turns on an optical isolation FETB + and an optical isolation FETB-, turns off the rest of optical isolation FETs, and connects an analog quantity equivalent module to a second positive-side bus and a second negative-side bus of the functional equivalent sub-board;
5. the signals generated by the analog quantity equivalent module are transmitted to the power supply and distribution ground equipment through optical isolation FETB & lt+ & gt and optical isolation FETB & lt- & gt of the functional equivalent sub-board, a second positive-side bus and a second negative-side bus of the functional equivalent sub-board, a motherboard, a first positive-side bus and a first negative-side bus of the switch matrix sub-board, an optical isolation FET & lt6+ & gt and optical isolation FET4 & lt- & gt of the switch matrix sub-board, a switch matrix sub-board electric connector, a universal separation plug transfer cable and a satellite arrow cable, and whether the power supply and distribution ground equipment is normal or not is judged according to the state of the power supply and distribution ground equipment.
In one embodiment, the power supply electronic board inputs 220V ac power, the output is supplied to the motherboard via the connector, and the output includes 28V, 12V, 5V, 3.3V, etc. power.
While the invention has been described in terms of the preferred embodiment, it is not intended to limit the invention, but it will be apparent to those skilled in the art that variations and modifications can be made without departing from the spirit and scope of the invention, and therefore the scope of the invention is defined in the appended claims.

Claims (10)

1.一种卫星通用的供配电等效器，其特征在于，包括母板、开关矩阵子板、功能等效子板、电源供电子板；开关矩阵子板、功能等效子板和电源供电子板均插接于母板上；电源供电子板用于为母板供电，并通过母板为开关矩阵子板和功能等效子板供电；1. A universal satellite power supply and distribution equivalent device, comprising a motherboard, a switch matrix daughterboard, a functional equivalent daughterboard, and a power supply sub-board; the switch matrix daughterboard, the functional equivalent daughterboard, and the power supply sub-board are all plugged into the motherboard; the power supply sub-board is used to supply power to the motherboard, and power the switch matrix daughterboard and the functional equivalent daughterboard through the motherboard; 开关矩阵子板包括第一正端总线和第一负端总线，开关矩阵子板的第一正端总线与功能等效子板的第二正端总线通过母板相连接，开关矩阵子板的第一负端总线与功能等效子板的第二负端总线通过母板相连接，功能等效子板用于模拟卫星接收有线指令并监测指令的正确性、模拟星上有线遥测信号的传输、监测分阵供电或集中供电的供电电压，以检测地面设备的功能性能是否正常；The switch matrix daughter board includes a first positive bus and a first negative bus. The first positive bus of the switch matrix daughter board is connected to the second positive bus of the functional equivalent daughter board through the motherboard. The first negative bus of the switch matrix daughter board is connected to the second negative bus of the functional equivalent daughter board through the motherboard. The functional equivalent daughter board is used to simulate the satellite receiving wired commands and monitoring the correctness of the commands, simulate the transmission of wired telemetry signals on the satellite, and monitor the power supply voltage of the array power supply or the centralized power supply to detect whether the functional performance of the ground equipment is normal. 在正光隔离线路上设置有N个一类正极端子，N个一类正极端子通过第一正端总线连接，并与开关矩阵子板的板卡输出正端子电连接；在负光隔离线路上设置有N个一类负极端子，N个一类负极端子通过第一负端总线连接，并与开关矩阵子板的板卡输出负端子电连接；N个一类正极端子与N个一类负极端子一一对应；N Class A positive terminals are provided on the positive optical isolation circuit, the N Class A positive terminals are connected via a first positive terminal bus, and are electrically connected to the card output positive terminal of the switch matrix daughter board; N Class A negative terminals are provided on the negative optical isolation circuit, the N Class A negative terminals are connected via a first negative terminal bus, and are electrically connected to the card output negative terminal of the switch matrix daughter board; the N Class A positive terminals correspond one to one with the N Class A negative terminals; 在第i个一类正极端子和第i个一类负极端子之间设置有光隔离FETi+和光隔离FETi-，其中光隔离FETi+的第一端与第i个一类正极端子电连接，光隔离FETi+的第二端与光隔离FETi-的第一端电连接，光隔离FETi-的第二端与第i个一类负极端子电连接；在光隔离FETi+的第二端与光隔离FETi-的第一端之间引出第i个通路端子，1≤i≤N。An optical isolation FETi+ and an optical isolation FETi- are arranged between the i-th Class A positive terminal and the i-th Class A negative terminal, wherein the first end of the optical isolation FETi+ is electrically connected to the i-th Class A positive terminal, the second end of the optical isolation FETi+ is electrically connected to the first end of the optical isolation FETi-, and the second end of the optical isolation FETi- is electrically connected to the i-th Class A negative terminal; an i-th path terminal is drawn between the second end of the optical isolation FETi+ and the first end of the optical isolation FETi-, 1≤i≤N. 2.根据权利要求1所述的供配电等效器，其特征在于，当控制光隔离FETa+与光隔离FETb-导通时，1≤a≤N，1≤b≤N，a≠b，则将地面供配电测试设备通过第a个一类正极端子连接第一正端总线，进而连接至功能等效子板的第二正端总线，将地面供配电测试设备通过第b个一类负极端子连接至第一负端总线，进而连接至功能等效子板的第二负端总线，以使供配电地面设备通过开关矩阵子板的第a个通路端子和第b个通路端子连接至功能等效子板的等效模块。2. The power supply and distribution equivalent device according to claim 1 is characterized in that when the optical isolation FETa+ and the optical isolation FETb- are controlled to be turned on, 1≤a≤N, 1≤b≤N, a≠b, the ground power supply and distribution test equipment is connected to the first positive end bus through the a-th Class A positive terminal, and then connected to the second positive end bus of the functional equivalent daughter board, and the ground power supply and distribution test equipment is connected to the first negative end bus through the b-th Class A negative terminal, and then connected to the second negative end bus of the functional equivalent daughter board, so that the power supply and distribution ground equipment is connected to the equivalent module of the functional equivalent daughter board through the a-th passage terminal and the b-th passage terminal of the switch matrix daughter board. 3.根据权利要求2所述的供配电等效器，其特征在于，所述供配电等效器还包括工控机，工控机用于控制开关矩阵子板的导通状态。3. The power supply and distribution equivalent device according to claim 2 is characterized in that the power supply and distribution equivalent device also includes an industrial computer, which is used to control the conduction state of the switch matrix sub-board. 4.根据权利要求2或3所述的供配电等效器，其特征在于，开关矩阵子板还包括FPGA和译码器，光隔离FET由译码器驱动，FPGA为译码器提供控制信号。4. The power supply and distribution equivalent device according to claim 2 or 3, characterized in that the switch matrix sub-board further includes an FPGA and a decoder, the optical isolation FET is driven by the decoder, and the FPGA provides a control signal for the decoder. 5.根据权利要求1所述的供配电等效器，其特征在于，功能等效子板包括第二正端总线、第二负端总线和互不相同的M个等效模块；在正光隔离线路上设置有M个二类正端端子，M个二类正端端子通过第二正端总线连接，并与开关矩阵子板的板卡输出正端子电连接；在负光隔离线路上设置有M个二类负极端子，M个二类负极端子通过第二负端总线连接，并与开关矩阵子板的板卡输出负端子电连接；M个二类正端端子与M个二类负极端子一一对应；5. The power supply and distribution equivalent device according to claim 1, characterized in that the functional equivalent daughter board includes a second positive terminal bus, a second negative terminal bus, and M different equivalent modules; M Class II positive terminals are provided on the positive optical isolation circuit, the M Class II positive terminals are connected via the second positive terminal bus, and are electrically connected to the board card output positive terminal of the switch matrix daughter board; M Class II negative terminals are provided on the negative optical isolation circuit, the M Class II negative terminals are connected via the second negative terminal bus, and are electrically connected to the board card output negative terminal of the switch matrix daughter board; the M Class II positive terminals correspond one-to-one to the M Class II negative terminals; 在第j个二类正端端子和第j个二类负极端子之间设置有光隔离FETj+、光隔离FETj-和第j个等效模块，其中光隔离FETj+的第一端与第j个二类正端端子电连接，光隔离FETj+的第二端与第j个等效模块的第一端电连接，第j个等效模块的第二端与光隔离FETj-的第一端电连接，光隔离FETj-的第二端与第j个二类负极端子电连接，1≤j≤M。An optical isolation FETj+, an optical isolation FETj- and a j-th equivalent module are arranged between the j-th Class-II positive terminal and the j-th Class-II negative terminal, wherein the first end of the optical isolation FETj+ is electrically connected to the j-th Class-II positive terminal, the second end of the optical isolation FETj+ is electrically connected to the first end of the j-th equivalent module, the second end of the j-th equivalent module is electrically connected to the first end of the optical isolation FETj-, and the second end of the optical isolation FETj- is electrically connected to the j-th Class-II negative terminal, 1≤j≤M. 6.根据权利要求5所述的供配电等效器，其特征在于，如果控制光隔离FETc+与光隔离FETc-导通，1≤c≤M，则将地面供配电测试设备通过开关矩阵子板连接至功能等效子板的第c个等效模块。6. The power supply and distribution equivalent device according to claim 5, characterized in that if the optical isolation FETc+ and the optical isolation FETc- are controlled to be turned on, 1≤c≤M, then the ground power supply and distribution test equipment is connected to the cth equivalent module of the functional equivalent sub-board through the switch matrix sub-board. 7.根据权利要求5或6所述的供配电等效器，其特征在于，功能等效子板的M个等效模块包括供电/28V指令等效模块、模拟量等效模块、无源指令等效模块、无源状态等效模块；7. The power supply and distribution equivalent device according to claim 5 or 6, characterized in that the M equivalent modules of the functional equivalent daughter board include a power supply/28V instruction equivalent module, an analog equivalent module, a passive instruction equivalent module, and a passive state equivalent module; 供电/28V指令等效模块的正端连接光隔离FETA+，光隔离FETA+的另一端与功能等效子板的第二正端总线相连接，供电/28V指令等效模块的负端连接光隔离FETA-，光隔离FETA-的另一端与功能等效子板的第二负端总线相连接；The positive terminal of the power supply/28V instruction equivalent module is connected to the optical isolation FETA+, and the other terminal of the optical isolation FETA+ is connected to the second positive terminal bus of the functional equivalent daughter board. The negative terminal of the power supply/28V instruction equivalent module is connected to the optical isolation FETA-, and the other terminal of the optical isolation FETA- is connected to the second negative terminal bus of the functional equivalent daughter board. 模拟量等效模块的正端连接光隔离FETB+，光隔离FETB+的另一端与功能等效子板的第二正端总线相连接，模拟量等效模块的负端连接光隔离FETB-，光隔离FETB-的另一端与功能等效子板的第二负端总线相连接；The positive end of the analog equivalent module is connected to the optical isolation FETB+, and the other end of the optical isolation FETB+ is connected to the second positive end bus of the functional equivalent daughter board. The negative end of the analog equivalent module is connected to the optical isolation FETB-, and the other end of the optical isolation FETB- is connected to the second negative end bus of the functional equivalent daughter board. 无源指令等效模块的正端连接光隔离FETC+，光隔离FETC+的另一端与功能等效子板的第二正端总线相连接，无源指令等效模块的负端连接光隔离FETC-，光隔离FETC-的另一端与功能等效子板的第二负端总线相连接；The positive end of the passive instruction equivalent module is connected to the optical isolation FETC+, and the other end of the optical isolation FETC+ is connected to the second positive end bus of the functional equivalent daughter board. The negative end of the passive instruction equivalent module is connected to the optical isolation FETC-, and the other end of the optical isolation FETC- is connected to the second negative end bus of the functional equivalent daughter board. 无源状态等效模块的正端连接光隔离FETD+，光隔离FETB+的另一端与功能等效子板的第二正端总线相连接，无源状态等效模块的负端连接光隔离FETD-，光隔离FETD-的另一端与功能等效子板的第二负端总线相连接。The positive end of the passive state equivalent module is connected to the optical isolation FETD+, and the other end of the optical isolation FETB+ is connected to the second positive end bus of the functional equivalent daughter board. The negative end of the passive state equivalent module is connected to the optical isolation FETD-, and the other end of the optical isolation FETD- is connected to the second negative end bus of the functional equivalent daughter board. 8.根据权利要求1所述的供配电等效器，其特征在于，所述供配电等效器还包括液晶屏和工控机；8. The power supply and distribution equivalent device according to claim 1, characterized in that the power supply and distribution equivalent device further comprises a liquid crystal screen and an industrial computer; 在进行供配电地面设备验证时，工控机通过液晶屏或者外部设备产生控制指令，并将指令传递给母板上的单片机；When verifying the power supply and distribution ground equipment, the industrial computer generates control instructions through the LCD screen or external devices and transmits the instructions to the microcontroller on the motherboard; 母板上的单片机接收到指令后，产生通路选择指令和功能选择指令，并将通路选择指令发送至开关矩阵子板的FPGA，将功能选择指令发送至功能等效子板的FPGA；After receiving the instruction, the MCU on the motherboard generates a path selection instruction and a function selection instruction, and sends the path selection instruction to the FPGA of the switch matrix daughter board and sends the function selection instruction to the FPGA of the functionally equivalent daughter board; 开关矩阵子板的FPGA接收到通路选择指令后，驱动译码器导通或断开相应的光隔离FET，以实现通路选择功能；After receiving the path selection instruction, the FPGA of the switch matrix daughter board drives the decoder to turn on or off the corresponding optical isolation FET to realize the path selection function; 功能等效子板的FPGA接收到功能选择指令后，驱动光隔离FET导通或断开以选择相应的等效模块。After receiving the function selection instruction, the FPGA of the functional equivalent daughter board drives the optical isolation FET to be turned on or off to select the corresponding equivalent module. 9.根据权利要求8所述的供配电等效器，其特征在于，等效模块产生的信号经等效模块所对应的光隔离FET、功能等效子板的第二正端总线与第二负端总线、母板、开关矩阵子板的第一正端总线与第一负端总线、开关矩阵子板导通的光隔离FET、开关矩阵子板的端子传送至供配电地面设备，根据供配电地面设备的状态判断供配电判断地面设备是否正常。9. The power supply and distribution equivalent device according to claim 8 is characterized in that the signal generated by the equivalent module is transmitted to the power supply and distribution ground equipment through the optical isolation FET corresponding to the equivalent module, the second positive end bus and the second negative end bus of the functional equivalent sub-board, the motherboard, the first positive end bus and the first negative end bus of the switch matrix sub-board, the optical isolation FET turned on by the switch matrix sub-board, and the terminal of the switch matrix sub-board, and whether the power supply and distribution ground equipment is normal is judged according to the status of the power supply and distribution ground equipment. 10.根据权利要求8所述的供配电等效器，其特征在于，供配电地面设备产生的信号经开关矩阵子板的端子、开关矩阵子板导通的光隔离FET、开关矩阵子板的第一正端总线与第一负端总线、母板、功能等效子板的第二正端总线与第二负端总线后送至相应的等效模块，等效模块根据接收到的信号判断供配电地面设备是否工作正常。10. The power supply and distribution equivalent device according to claim 8 is characterized in that the signal generated by the power supply and distribution ground equipment is sent to the corresponding equivalent module after passing through the terminals of the switch matrix sub-board, the optical isolation FET turned on by the switch matrix sub-board, the first positive end bus and the first negative end bus of the switch matrix sub-board, the motherboard, the second positive end bus and the second negative end bus of the functional equivalent sub-board, and the equivalent module determines whether the power supply and distribution ground equipment is working normally based on the received signal.
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