Human body state detection method of human body state detection device based on pyroelectric technology
A human body state and detection device technology, which is applied in measuring devices, electric radiation detectors, radiation pyrometry, etc., can solve the problems of high price, poor real-time performance, and high computational complexity
Inactive Publication Date: 2019-05-17
WUHAN UNIV OF TECH
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[0012] Three-axis acceleration sensor human body state detection device: human body state detection is mature, the processing speed is ordinary, but the price is expensive, it has to be worn on the human body, and the real-time performance is poor
High computational complexity
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[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0046] Such as Figure 1~5The shown human body state detection device based on pyroelectric technology is characterized in that it includes a front-end human body movement sensing component, a data processing transmission module 2 and a data receiving terminal 4 (such as an alarm terminal, a handheld mobile terminal, a server terminal, etc.), The front-end human body movement sensing assembly includes a front-end lateral movement acquisition module 1 and a front-end longitudinal movement acquisition module 3, and each front-end lateral movement acquisition module 1 includes a first signal modulation cover 11, a first Fresnel lens 12, a lateral movement The pyroelectric sensor 13 and the first amplification and filtering circuit 14, the first signal modulation cover 11 is covered on the first Fresnel lens 12, and the first Fresnel lens...
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The present invention discloses a human body state detection device based on a pyroelectric technology. The human body state detection device based on the pyroelectric technology is characterized in that a first signal modulation cover covers a first Fresnel lens, the first Fresnel lens is installed at the induction end of a transverse mobile pyroelectric sensor, and the signal output end of the transverse mobile pyroelectric sensor is connected with the signal input end of a first amplifying and filtering circuit; each front-end longitudinal mobile acquisition module comprises a second signal modulation cover, a second Fresnel lens, a longitudinal mobile pyroelectric sensor and a second amplifying and filtering circuit, the second Fresnel lens is installed at the induction end of the longitudinal mobile pyroelectric sensor, the signal output end of the longitudinal mobile pyroelectric sensor is connected with the signal input end of the second amplifying and filtering circuit, and the output ends of the first and second amplifying and filtering circuits are connected with a data reception terminal separately via a data processing and transmitting module. The human body state detection device based on the pyroelectric technology of the present invention can detect the human body state accurately.
Description
technical field [0001] The invention relates to the technical field of human body state detection, in particular to a human body state detection device based on pyroelectric technology. Background technique [0002] The pyroelectric effect is to generate excess thermal charges on its own surface when its own temperature changes, and it only responds to the rate of change of its own temperature. In layman's terms, the pyroelectric effect is the inherent self-electric polarization phenomenon of certain crystals in nature caused by thermal changes. In essence, all sensors are energy-transforming devices. In this sense, pyroelectric infrared sensors are photothermoelectric converters of infrared radiation, which convert invisible infrared radiation energy into thermal energy and then into electrical energy. Measure. [0003] The infrared energy radiated by the human body is quite weak, and the detection distance of the pyroelectric sensor is relatively short, generally 1 to 2 ...
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IPC IPC(8): G01J5/00G01J5/34
CPCG01J5/0025G01J5/34
Inventor 李方敏谢鹏李扬帆熊迹马小林
Owner WUHAN UNIV OF TECH