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Human eye protection method and device for laser television and computer equipment

A laser TV and protection device technology, which is applied to color TV parts, TV system parts, image reproducers using projection devices, etc., can solve problems such as low reliability and delay in detection, and avoid The effect of high system load, rapid response, and avoiding inaccurate detection results

Active Publication Date: 2020-09-01
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a human eye protection method for laser TV to solve the problems of detection delay and low reliability in the prior art

Method used

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  • Human eye protection method and device for laser television and computer equipment
  • Human eye protection method and device for laser television and computer equipment
  • Human eye protection method and device for laser television and computer equipment

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Embodiment Construction

[0075] see Figure 4 , which is a flow chart of an eye protection method for laser television in this application.

[0076] Depend on Figure 4 It can be seen that a human eye protection method for laser TV provided by the embodiment of the present application includes:

[0077] S100: Obtain a semaphore;

[0078] In this embodiment, the semaphore (Semaphore) can be used to ensure that two or more key code segments are not called concurrently. Specifically, the semaphore is a parameter that reflects whether there is a human body approaching the sensor in the preset area of ​​the laser TV. If If there is a movement of the human body close to the sensor, the signal amount can be obtained; on the contrary, if the human body is still in the preset area, or the human body moves away from the sensor in the preset area, the signal amount will not be obtained.

[0079] Further, in the present embodiment, semaphore is by SOC (System on Chip, system-on-chip, CPU, analog IP core, digit...

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Abstract

The invention discloses a human eye protection method and device for a laser television and computer equipment. The method comprises the steps: acquiring semaphore; calling first waveform informationcorresponding to the semaphore and a current optical machine state, wherein the optical machine state comprises normal display of an optical machine, darkening of the optical machine and closing of the optical machine; and generating a control instruction for the current optical machine state according to the first waveform information. According to the invention, the mode of triggering the interrupt callback function is adopted, so the response to the protection operation of human eyes is quicker, and the problem of inaccurate detection result caused by signal spike pulse can be effectively avoided through waveform counting and waveform time difference calculation; besides, the semaphore is acquired, so the problems of high system load, detection delay and low reliability caused by polling are avoided.

Description

technical field [0001] The present application relates to the technical field of laser television products, in particular to an eye protection method, device and computer equipment for laser television. Background technique [0002] Laser TV uses laser light source and DLP technology to display images, which has the advantages of healthy eye protection, energy saving and power saving. In the process of designing laser TV products, since the human body is easy to burn the eyes when it is close to the laser TV light source, laser TVs are usually equipped with pyroelectric infrared sensors (eye protection sensors) to detect whether people are approaching the machine. [0003] Depend on figure 1 As shown, the principle of the pyroelectric infrared sensor is that when no human body is detected in the current area, the sensor output pin outputs a constant level; when a human body is detected in the current area, the sensor outputs an opposite level signal , so that the brightnes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/64H04N9/31H04N21/442H04N21/443
CPCH04N5/64H04N9/3161H04N21/44218H04N21/4436
Inventor 董利平程志姜超谭少峰王双优
Owner HISENSE VISUAL TECH CO LTD