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Aircraft high-safety-level touch control device and method

A security level, touch device technology, applied in the field of high level touch devices, can solve the problem of low security level and the like

Active Publication Date: 2020-08-18
CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a high-safety touch device for aircraft to solve the problem of low safety level of the current capacitive touch screen, so as to expand the application of the touch screen in the aerospace field scope

Method used

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  • Aircraft high-safety-level touch control device and method
  • Aircraft high-safety-level touch control device and method

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Embodiment Construction

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] The current design guarantee level of capacitive touch screen equipment is roughly at level C. For level A and level B applications, in order to prevent accidents, the use of capacitive touch screens will be prohibited.

[0039] Table 1 Description of safety design level

[0040]

[0041] Traditional capacitive touch screen solutions, such as figure 1 As shown, the touch sensor is composed of driving electrodes and sensing electrodes, and there is a coupling capacitance at the intersection of the electrodes. When the finger approaches the Sensor, the coupling capacitance value will change, and the signal on the sensing electrode will also change ...

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Abstract

The invention belongs to the technical field of aerospace display control equipment safety, and discloses an aircraft high-safety-level touch control device which sequentially comprises protective glass, a touch control sensor and a display from top to bottom, and further comprises a strain sensor, a touch control controller and a main processor, wherein the strain sensor is arranged below the protective glass; the output end of the touch sensor and the output end of the strain sensor are respectively connected with the data input end of the touch controller; the touch controller is connectedwith the main processor through a data line, and the driving output end of the main processor is connected with the driving input end of the displayer, so that the problem that an existing capacitivetouch screen is low in safety level is solved, and the application range of the touch screen in the aerospace field is enlarged.

Description

technical field [0001] The invention belongs to the technical field of safety of aerospace display and control equipment, and in particular relates to an aircraft high-safety touch device. Background technique [0002] Capacitive touch screens are widely used in the field of consumer electronics, especially mobile smart terminals such as mobile phones, due to their excellent touch sensitivity and excellent user experience. It is a current technical hotspot to apply this technology to aircrafts such as airplanes, especially to the cockpit of civil aircraft. [0003] However, the processing object of the capacitive touch screen is the finger capacitance variable, and its value is usually less than 1pF. In order to accurately identify the finger signal, the capacitance sensitivity of the touch screen is usually high. In the external noise environment, or when the circuit noise of the touch screen itself is high, the algorithm processing is not perfect, which will easily genera...

Claims

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Application Information

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IPC IPC(8): G06F3/044G06F3/041
CPCG06F3/044G06F3/0412G06F3/04166G06F3/04186G06F2203/04105G06F2203/04104
Inventor 黄海
Owner CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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