Space camera matrix active temperature acquisition control system and acquisition control method

A space camera and control system technology, applied in temperature control, electric temperature control, control/regulation system, etc., can solve the problems of many cables, cumbersome test process, complex structure, etc., to reduce components, reduce Effect of number of cables, weight and size reduction

Inactive Publication Date: 2019-01-25
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a space camera matrix type active temperature acquisition control system and an acquisition control method to solve the problems of complex structure and cumbersome test process due to the large number of cables and devices in the existing space camera temperature acquisition control system.

Method used

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  • Space camera matrix active temperature acquisition control system and acquisition control method
  • Space camera matrix active temperature acquisition control system and acquisition control method
  • Space camera matrix active temperature acquisition control system and acquisition control method

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specific Embodiment approach 1

[0031] Specific implementation mode 1. Combination Figure 1 to Figure 6 Description of this embodiment, the space camera matrix active temperature acquisition control system includes a temperature acquisition circuit, a temperature sensor, and a temperature acquisition matrix cable electrically connected to the temperature sensor; the temperature sensor and the temperature acquisition matrix cable are fixed on On the space camera, the temperature acquisition circuit is located in the space camera control electric box; the temperature sensor collects the temperature information of the corresponding measuring point of the space camera in real time, and transmits the temperature information to the temperature acquisition circuit through the temperature acquisition matrix cable, and the temperature acquisition circuit Convert the temperature information into a temperature digital signal. The system also includes:

[0032] The heater fixed on the space camera, the heating matrix ...

specific Embodiment approach 2

[0044] Embodiment 2. This embodiment is the acquisition control method of the space camera matrix active temperature acquisition control system described in Embodiment 1. The method is implemented by the following steps:

[0045] The power module in the control box is powered on to supply power to other parts, the active temperature acquisition control system of the space camera starts to work, and the temperature acquisition start command is injected into the controller;

[0046] Step 1, the controller controls the temperature sensor matrix to collect temperature information; specifically:

[0047] The controller controls the first row, the first column to the 1nth column wire in the temperature acquisition matrix cable matrix to output the resistance value information of the first row in the temperature sensor matrix to the first analog multiplexer, and at the same time, the signal conditioning circuit converts the first The resistance value information of the first line out...

specific Embodiment approach 3

[0054] Specific Embodiment 3. This embodiment is an embodiment of the space camera matrix active temperature acquisition control system described in Specific Embodiment 1: this embodiment takes the acquisition of a temperature sensor matrix as an example to illustrate the composition of the temperature acquisition circuit. Figure 4 , the first analog multiplexer in the temperature acquisition circuit includes a plurality of AMUX chips, and the AMUX chip selects one of the X signal signals for output each time. Define the matrix temperature acquisition cable. The number of row cables and column cables in the matrix is ​​Y1 and Y2 respectively. Then take an integer after Y1 / X, and then add this integer + 1 to connect to the row line in the matrix temperature acquisition cable matrix. The number of AMUX chips in the cable; take an integer after Y2 / X, and then the integer + 1 is the number of AMUX chips connected to the matrix temperature acquisition cable matrix column cable. Co...

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Abstract

The space camera matrix type active temperature acquisition control system and acquisition control method relate to the field of industrial automation and solve the problems of the existing space camera temperature acquisition control system due to the large number of cables and devices, which lead to complex structure and cumbersome test process, etc., including temperature acquisition. circuit, temperature sensor, heater, heating circuit, controller and power module, temperature acquisition matrix cable and heating matrix cable; the temperature sensor collects the temperature information of the corresponding measuring point of the space camera in real time, and the The cable transmits the temperature information to the temperature acquisition circuit, the temperature acquisition circuit converts the temperature information into a temperature digital signal and sends it to the controller, the controller outputs the heating control signal and sends it to the heating circuit, and the heating control circuit will pass the heating voltage signal through the heating matrix The cable is sent to a heater, which heats the space camera. The invention effectively reduces the number of cables of the active thermal control system.

Description

technical field [0001] The invention relates to the field of industrial automation, in particular to an active temperature acquisition control system and an acquisition control method, which are applied to the active temperature acquisition control system and acquisition control method of a space camera. Background technique [0002] Space cameras are placed on space vehicles such as satellites or spacecraft to complete the imaging task of ground scenes, and are important payloads of space vehicles. When the space camera is in orbit, it will be in a high vacuum, cold darkness and heat radiation environment for a long time. In order to enable the space camera to work normally in these harsh environments, it is necessary to control the temperature of the space camera so that the temperature of the space camera can be stabilized within the working temperature range, so that the imaging task can be completed. [0003] The temperature control of space cameras is mainly divided i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D23/19G05D23/24
CPCG05D23/19G05D23/1917G05D23/24
Inventor 曹小涛何云丰王栋
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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