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Remote control signal simulator for small satellite ground test and remote control signal analogy method

A technology of remote control signal and ground test, which is applied in the field of satellite measurement and control, can solve the problems of low test efficiency, inconvenient and flexible program control, and high price, and achieve the effect of improving test efficiency, strong flexibility, and reducing economic costs

Inactive Publication Date: 2010-07-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low test efficiency, inconvenient, flexible and expensive program control during small satellite ground testing using the actual remote control signal generating device, the present invention provides a remote control signal simulator and remote control signal simulation for small satellite ground testing method

Method used

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  • Remote control signal simulator for small satellite ground test and remote control signal analogy method
  • Remote control signal simulator for small satellite ground test and remote control signal analogy method
  • Remote control signal simulator for small satellite ground test and remote control signal analogy method

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specific Embodiment approach 1

[0010] Specific implementation mode one: According to the instructions attached figure 1 Specifically illustrate the present embodiment, a kind of remote control signal simulator for small satellite ground test described in the present embodiment, it comprises LVDS interface circuit 1, FPGA control logic unit 2, isolation circuit 3 and signal drive circuit 4, LVDS interface Circuit 1 includes LVDS receiving circuit 1-1 and LVDS sending circuit 1-2, signal driving circuit 4 includes OC signal driving circuit 4-1 and PWM signal driving circuit 4-2,

[0011] The signal output end of the LVDS receiving circuit 1-1 is connected to the signal input end of the FPGA control logic unit 2, and the OC_OUT signal output end of the FPGA control logic unit 2 is connected to the signal input end of the OC signal drive circuit 4-1 through the isolation circuit 3 , the PWM_OUT signal output end of the FPGA control logic unit 2 is connected to the signal input end of the PWM signal drive circui...

specific Embodiment approach 2

[0012] Specific implementation mode two: according to the instructions attached figure 2 Describe this embodiment in detail. This embodiment is a further description of Embodiment 1. The OC signal drive circuit 4-1 described in Embodiment 1 includes a first-stage drive circuit 4-11, a triode 4-12 and a signal The protection circuit 4-13, the signal input end of the first-stage drive circuit 4-11 is the signal input end of the OC signal drive circuit 4-1, and the signal output end of the first-stage drive circuit 4-11 is connected to the triode 4-12 The base of the triode 4-12 is connected to the signal input terminal of the signal protection circuit 4-13, the emitter of the triode 4-12 is connected to the power ground, and the signal output terminal of the signal protection circuit 4-13 is OC Output signal terminal.

specific Embodiment approach 3

[0013] Specific implementation mode three: according to the instructions attached figure 2 Describe this embodiment in detail. This embodiment is a further description of Embodiment 2. The OC signal drive circuit 4-1 described in Embodiment 2 further includes a resistor 4-14, and the resistor 4-14 is connected in series at the second Between the signal output terminal of the first-stage drive circuit 4-11 and the base of the triode 4-12.

[0014] In this embodiment, the resistor 4-14 is added to make the current passing through the base of the triode meet the requirements of the triode.

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Abstract

The invention provides a remote control signal simulator for small satellite ground test and a remote control signal analogy method, relating to the satellite measurement and control field; the invention solves the problems that the test efficiency is low, program control is inconvenient and inflexible and has high price when a practical remote control signal generating device is utilized to carry out small satellite ground test; the remote control signal simulator comprises an LVDS interface circuit, an FPGA control logic unit, an insolating circuit and a signal driving circuit; the LVDS interface circuit comprises an LVDS receiving circuit and an LVDS transmitting circuit, and the signal driving circuit comprises an OC signal driving circuit and a PWM signal driving circuit; the remote control signal analogy method is that an OC signal generation state machine in the FPGA control logic unit comprises four states, and the PWM signal generation state machine comprises six states; the remote control signal simulator is suitable for small satellite ground test.

Description

technical field [0001] The invention relates to the field of satellite measurement and control, in particular to a remote control signal simulator and a remote control signal simulation method for small satellite ground testing. Background technique [0002] The remote control signal generating device is an important component in the small satellite test, and its performance directly affects the performance of the small satellite test equipment and the accuracy of the test results. At present, when testing small satellites, the actual remote control signal generator is used to test the small satellite normally, but the test efficiency is low and the program control is not convenient and flexible enough, and the actual remote signal generator is expensive. Therefore, the development of a remote control signal simulator that can generate ground remote control signals that simulate satellites has attracted much attention. The function of the remote control signal simulator is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C17/00
Inventor 刘旺赵光权刘兆庆梁军马云彤彭喜元
Owner HARBIN INST OF TECH
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