System for measuring body height

Abstract

The invention provides a system for measuring a body height. The system comprises a central control device, a telescopic rod and a sensor group which is arranged at the top of the telescopic rod, wherein the telescopic rod comprises a control motor, a vertical guide rail and a movable rod; the movable rod is arranged in the vertical guide rail; the movable rod, under the control of the control motor, is moved up and down in the vertical guide rail in a vertical direction; the sensor group comprises a camera and a laser detector; the camera is used for detecting a human face; the laser detector is used for sensing the highest position of a human head; and the central control device is used for controlling motions of the telescopic rod and for recognizing the human face in accordance with image information which is returned by the camera so as to judge general height of a human body, and the central control device is further used for controlling an initial detection position of the laser detector in accordance with the general height of the human body. The system for measuring the body height provided by the invention can offer a relatively good human-computer interaction experience.

Description

technical field [0001] The invention relates to optical and image recognition technology, in particular to a system for measuring height based on face positioning and optical technology. Background technique [0002] The existing automatic equipment products for measuring height are nothing more than using ultrasonic sensors to install ultrasonic distance measuring modules high above the head of the measurement target; using the principle of sound wave reflection to measure height. Because the ultrasonic distance measuring module is higher than the height of the measurement object, the shape of the device must be a tall structure of '7' type. [0003] There is also an old-fashioned mechanical pressing method for measuring height, using a device that can slide up and down to hit the top of the head to obtain elevation data, which is rarely used today. But the shape of the device is also a '7' type tall structure. [0004] The measurement principles of the two forms lead to ...

AI Technical Summary

Problems solved by technology

[0004] The measurement principles of the two forms lead to a tall and bulky form; and the former is a potential source of error because the speed of sound waves is related to the air temperature, which needs to be compensated in the algorithm; while the latter requires a mechanical impact, the user experience is not good

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