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Electronic device having object detecting function and object detecting method

A technology for electronic devices and objects, which is applied in the detection of electromagnetic waves, etc., can solve the problems of rising costs of portable electronic devices and achieve the effect of reducing production costs

Active Publication Date: 2016-11-23
SHENXUN COMP KUNSHAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the cost of producing portable electronic devices also increases

Method used

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  • Electronic device having object detecting function and object detecting method
  • Electronic device having object detecting function and object detecting method
  • Electronic device having object detecting function and object detecting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] figure 1 It is a functional block diagram of the electronic device with object detection function according to the first embodiment of the present invention. see figure 1 , the electronic device 1 includes a radio frequency antenna 11 , a signal detection circuit 12 , a coupling circuit 13 , a signal generator 14 , a processing unit 15 and a wireless module 16 . The coupling circuit 13 is coupled between the RF antenna 11 and the wireless module 16 , between the RF antenna 11 and the signal generator 14 , and between the RF antenna 11 and the signal detection circuit 12 . The signal detection circuit 12 is coupled to the coupling circuit 13 , the signal generator 14 and the wireless module 15 . The signal generator 14 is coupled between the coupling circuit 13 and the processing unit 15 .

[0015] The signal generator 14 generates a test signal S1 and transmits the test signal S1 through the radio frequency antenna 11 in a first frequency band. Next, the signal dete...

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Abstract

The invention provides an electronic device having an object detecting function and an object detecting method. The object detecting method includes generating a testing signal, sending the testing signal at a first frequency band via a radio frequency antenna, receiving a current reflection signal corresponding to the testing signal via the radio frequency antenna and judging whether an object exists in a radiation range of the radio frequency antenna according to the current reflection signal and a plurality of preset coefficients, wherein the first frequency band does not overlap with a second frequency band used by a wireless module via the radio frequency antenna and the preset coefficients include a preset reflection coefficient indicating no object existence and a preset coefficient indicating object existence.

Description

【Technical field】 [0001] The present invention relates to an electronic device and an object detection method, in particular to an electronic device with object detection function and an object detection method. 【Background technique】 [0002] Wireless communication technology has developed rapidly in recent years, and a wireless communication device using the wireless communication technology transmits or receives radio waves through an antenna. Radio waves are electromagnetic waves, also known as electromagnetic radiation. Electromagnetic radiation uses radiation to transfer energy and has a radiation amount. In addition to emitting or receiving radio waves to generate radiation, wireless communication devices also generate radiation when they are in operation. In order to avoid the impact of radiation on the health or physiology of users, there are certain regulations on the radiation generated by wireless communication devices in the world. For example, the value of s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/12
Inventor 陈鸿图
Owner SHENXUN COMP KUNSHAN