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Time scale generation circuit and time scale distribution system of multistage carrier rocket

A carrier rocket and circuit generation technology, which is applied in the field of aerospace, can solve the problems of take-off signal interference, easy to trigger the take-off signal by mistake, and affect the quality of take-off signal transmission, so as to achieve high reliability and improve the transmission quality.

Pending Publication Date: 2020-10-09
BEIJING XINGJI RONGYAO SPACE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the take-off signal in the prior art is easily interfered, which leads to false triggering of the take-off signal, thereby affecting the transmission quality of the take-off signal

Method used

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  • Time scale generation circuit and time scale distribution system of multistage carrier rocket
  • Time scale generation circuit and time scale distribution system of multistage carrier rocket
  • Time scale generation circuit and time scale distribution system of multistage carrier rocket

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Embodiment 1

[0038] Such as figure 2 As shown, the embodiment of the present invention provides a timing generation circuit for a multi-stage launch vehicle, and the timing generation circuit includes an electrical connector, a switch circuit 10 and a sampling circuit 20 .

[0039]The input end of the switch circuit is connected to the power supply through the electrical connector, the first output end is connected to the sampling circuit, and the second output end is grounded. There is an electrical connector connected between the multi-stage carrier rocket and the ground. When the multi-stage carrier When it is lifted into the air, it will be farther and farther away from the ground. When the distance reaches a certain level, the electrical connector will be automatically disconnected.

[0040] In the time scale generation circuit, the switch circuit and the sampling circuit are both arranged on the multi-stage launch vehicle. Since one end of the electrical connector is fixed on the ...

Embodiment 2

[0051] Such as image 3 and Figure 4 As shown, the embodiment of the present invention also provides a time stamp distribution system for a multi-stage launch vehicle. The time stamp distribution system includes: a bus, a main computer, a subcomputer, and a time stamp generation circuit. The CPU in the host computer can be a central processing unit such as an MCU processor or an FPGA.

[0052] The bus is laid in each sub-stage launch vehicle 1 , the multi-stage launch vehicle is composed of multiple sub-stage launch vehicles 1 , and signals are transmitted between the multiple sub-stage launch vehicles 1 through inter-stage connectors 6 . One of all sub-stage launch vehicles 1 is provided with a main computer, and the remaining sub-stage launch vehicles 1 are all provided with sub-computers. The receiving end of the main computer is connected with the sampling circuit of the time scale generating circuit, the output end is connected with the bus, and the receiving end of th...

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Abstract

The invention discloses a time scale generation circuit and a time scale distribution system of a multistage carrier rocket. The time scale generation circuit comprises an electric connector and a switching circuit, wherein the electric connector is arranged between the ground and the multistage carrier rocket, and when the multistage carrier rocket is in a non-takeoff state, the electric connector is conducted; when the multi-stage carrier rocket takes off, the electric connector is disconnected; and an input end of the switching circuit is connected to a power supply through the electric connector, an output end of the switching circuit is connected with a sampling circuit, and a second end is grounded. According to the arrangement, the electric connector is adopted to provide a takeoffsignal, the sampling circuit transmits the takeoff signal in a digital signal form after collecting the takeoff signal, and a technical scheme of adopting a takeoff contact in the traditional technology is replaced; and after the sampling circuit carries out identification and transmits the takeoff signal in the form of the digital signal, the digital signal is not susceptible to interference of the length and the voltage drop of a transmission line, so that the problem that analog quantity signals are prone to be mistakenly triggered in the transmission process is solved, and the transmissionquality of the takeoff signals is improved.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to a time stamp generating circuit and time stamp distribution system of a multi-stage launch vehicle. Background technique [0002] In the prior art, the time scale signal of the electrical system of a multi-stage launch vehicle usually uses the take-off signal as the time scale signal, and the time scale signal is used as the starting point signal for the unified timing work of all related systems. Such as figure 1 As shown, the take-off signal is usually given centrally by the distributor of the launch vehicle, and the take-off signal is obtained by connecting the electromagnetic relay with the take-off contact switch of the rocket, and the electromagnetic relay is transmitted to the take-off utilization system and the use system through its contacts. In the take-off measurement system, the signals in the above transmission process are all analog signals. [0003] In the abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/78H03K19/0175
CPCH03K17/78H03K19/0175
Inventor 彭小波漆光平严卿赵也倪
Owner BEIJING XINGJI RONGYAO SPACE TECH CO LTD