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A human eye protection method, device and computer equipment for laser TV

A laser TV and protection device technology, applied in color TV parts, TV system parts, and image reproducers using projection devices, etc., can solve problems such as delay in detection and low reliability, and achieve responsiveness Fast, avoid high system load, and avoid inaccurate detection results

Active Publication Date: 2022-03-11
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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  • A human eye protection method, device and computer equipment for laser TV
  • A human eye protection method, device and computer equipment for laser TV
  • A human eye protection method, device and computer equipment for laser TV

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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 present application discloses a human eye protection method, device, and computer equipment for laser television. The method includes acquiring a signal amount; calling the first waveform information corresponding to the signal amount and the current optical-mechanical state; the optical-mechanical state Including the normal display of the light machine, the darkening of the light machine and the shutdown of the light machine; according to the first waveform information, a control instruction for the current state of the light machine is generated. This application uses the way of triggering the interrupt callback function to make the response to the human eye protection operation more rapid, and by counting the waveform and calculating the waveform time difference, the problem of inaccurate detection results caused by signal spikes can be effectively avoided; In addition, the use of semaphore acquisition avoids the problems of high system load, delay in detection, and low reliability caused by polling.

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 Patents(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