Manned spacecraft instrument system infrared touch screen hardware circuit

An infrared touch screen, manned spacecraft technology, applied in the aerospace field, can solve the problems of easy drift of device parameter characteristics, affecting the light transmittance of the display, difficult to work stably for a long time, etc. The effect of power loss

Inactive Publication Date: 2018-03-06
王东玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of film and glass plate, the light transmittance of the display is greatly affected
At the same time, they all have insurmountable barriers, such as damage and aging of a single sensor, device parameter characteristics are easy to drift, it is difficult to work stably for a long time, the touch interface is afraid of contamination, and maintenance is complicated, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below in conjunction with drawings and embodiments.

[0018] Such as figure 1 , In the basic working circuit of the infrared pair tube, the infrared emitting tube is selected from IR26-51CL110TR8 of China Taiwan Yiguang Company, which adopts a double-ended small surface mount package, has a low conduction voltage, has a strong match with the infrared receiving tube, does not contain lead and high Pollutants such as molecular polymers have the advantages of relatively large emission power. Its peak wavelength is 940 nm (when the operating current is 20mA). The phototransistor uses the company's PT26-S1B / TR8, which is packaged in a small double-ended surface mount. It has short response time, high sensitivity, small junction capacitance, and does not contain pollutants such as lead and polymers. It is especially suitable for infrared reception.

[0019] Such as figure 2 , In the horizontal emitting tube lamp array and th...

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PUM

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Abstract

The invention relates to an infrared touch screen hardware circuit of an instrument system of a manned spacecraft, which is suitable for the aerospace field. The hardware circuit of the touch screen is composed of the basic working circuit of the infrared pair tube, the horizontal emitting tube lamp array and control circuit, the horizontal infrared receiving tube circuit, and the current output circuit. It can work stably and reliably under high and low temperature and vacuum conditions, and meets the special aerospace environment. Use the following requirements. The circuit structure is simple, the volume is small, the reliability is high, the work efficiency is improved, and the power loss is reduced.

Description

Technical field [0001] The invention relates to an infrared touch screen hardware circuit of an instrument system of a manned spacecraft, which is suitable for the aerospace field. Background technique [0002] my country is designing and manufacturing manned spacecraft that can operate in space for a long time. The image system on the spacecraft is planned to use a high-definition display system. The instrument system is an important part of the image system on the station, providing image decoding and terminal display functions. At present, the LCD screens put into use on manned spacecraft adopt keyboard or button input mode, and do not have touch display function. For the current on-board display of spaceships, the use of input devices such as keyboards and mice is very inconvenient, and it takes up independent equipment and operating space. In the integrated display system of manned spacecraft, it is of great significance to apply the touch screen to the instrument disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042
CPCG06F3/0421
Inventor 王东玉
Owner 王东玉
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