Infrared obstacle distance detection circuit

Abstract

The present invention discloses an infrared obstacle distance detection circuit, including an infrared emitting module, an infrared receiving module, and an output signal adjusting module. The infrared emitting module generates a first infrared ray for testing an obstacle distance according to a current signal outputted by an input / output module. The infrared receiving module receives a second infrared ray emitted by the first infrared ray through the obstacle, and converts the second infrared ray into an electrical signal to output to the input / output module. The output signal adjusting module controls a voltage value to reduce to a preset voltage when the voltage value is greater than the preset voltage, or controls a voltage value to a preset voltage when the voltage value is less thanthe preset voltage, and then the output signal adjustment module adjusts the level of the signal at a standard obstacle distance, where the signal is an electrical signal into which the second infrared ray is converted, to improve accuracy of distance measurement and consistency of distance test.

Description

technical field [0001] The invention relates to the field of obstacle distance detection, in particular to an infrared obstacle distance detection circuit. Background technique [0002] With the progress of the times and the development of science and technology, various artificial intelligence products have gradually entered ordinary households. For example, sweeping robots are the most common artificial intelligence products, also known as automatic cleaning machines, smart vacuum cleaners, etc., which are a type of smart household appliances. With a certain amount of artificial intelligence, it can automatically complete the floor cleaning work in the room. Generally, brushing or vacuuming is used to absorb the debris on the ground into its own garbage storage box, so as to complete the function of floor cleaning; while the machine is working Obstacle distance detection requirements are relatively strict. When the distance detection accuracy is insufficient and the consis...

AI Technical Summary

Problems solved by technology

[0002] With the advancement of the times and the development of science and technology, various artificial intelligence products have gradually entered ordinary households. For example, sweeping robots are the most common artificial intelligence products, also known as automatic cleaning machines, smart vacuum cleaners, etc., which are a type of smart household appliances. With a certain amount of artificial intelligence, it can automatically complete the floor cleaning work in the room. Generally, brushing or vacuuming is used to absorb the debris on the ground into its own garbage storage box, so as to complete the function of floor cleaning; while the machine is working Obstacle distance detection requirements are relatively strict. When the distance detection accuracy and consistency are not good, it will affect the sensitivity of equipment operation, and the response time to obstacle detection is slow, which may cause misjudgment

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