Method and device for evaluating infrared light interference intensity
A technology of interference intensity and infrared light, which is applied in the field of infrared detection, can solve problems such as inoperability of home appliances, and achieve a wide range of applications
Inactive Publication Date: 2018-01-19
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
In actual use, these infrared remote control systems are often interfered by other infrared signal sources, such as sunlight, electronic energy-saving lamps, infrared monitoring alarms, etc. Once the infrared remote control system is interfered, the home appliances will be completely inoperable
After-sales service personnel often use the method of replacing the corresponding parts during maintenance, which cannot fundamentally solve the interference problem
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[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the method and device for evaluating the intensity of infrared light interference of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0034] refer to Figure 1 to Figure 7 , an embodiment of the device for evaluating the intensity of infrared light interference of the present invention includes an infrared sensing device, an MCU processor and a display device; the MCU processor is electrically connected with the infrared sensing device and the display device respectively, and the MCU processor The collected infrared light signal calculates the number of interferences and sends them to the display device to display the number of interferences. T...
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The present invention provides a method for evaluating the intensity of infrared light interference, comprising the following steps: S1, the infrared sensing device collects all infrared light signals in its environment, converts the infrared light signals into electric pulse signals according to the parameters of the infrared remote control system, And send the electric pulse signal to the MCU processor; S2, the MCU processor judges the level height of the electric pulse signal sent by the infrared sensing device, compares the level height of the electric pulse signal with the preset level height, if If the level height of the electric pulse signal is lower than the preset level height, it is judged as an interference pulse, and enters step S3, otherwise, it is not processed as a normal signal; S3, calculates the length of the interference pulse, and calculates the number of times of interference according to the length of the interference pulse , and display the number of interferences. It also relates to a device. The method and device for evaluating the intensity of infrared light interference of the present invention conducts quantitative tests on the intensity of infrared light interference, has a wide range of applications, and provides a basis for solving various problems in infrared remote control communication.
Description
technical field [0001] The invention relates to the field of infrared detection, in particular to a method and device for evaluating the intensity of infrared light interference. Background technique [0002] At present, infrared optical communication is widely used. Infrared remote control systems are used in air conditioners, TVs and other home appliances. The principle is that the remote control emits infrared light with a length of several milliseconds to hundreds of milliseconds, and the receiving device inside the air conditioner and TV receives the infrared light. After that, the signal is filtered, decoded, analyzed, and executed, thus realizing remote control of air conditioners and TVs. In actual use, these infrared remote control systems are often interfered by other infrared signal sources, such as sunlight, electronic energy-saving lamps, infrared monitoring alarms, etc. Once the infrared remote control system is interfered, the home appliances will be completel...
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IPC IPC(8): H04B10/079G08C23/04
Inventor 冯勇雄方祥建欧毓迎
Owner GREE ELECTRIC APPLIANCES INC