Micropower impact-type biological radar front end

A biological radar and micro-power technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve the problems of high radiation power, complex structure, and high price, and achieve the effect of small size, low price, and low price

Inactive Publication Date: 2013-04-10
FOURTH MILITARY MEDICAL UNIVERSITY
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Problems solved by technology

Compared with the continuous wave biological radar front-end, the ultra-wideband biological radar front-end has the advantages of strong penetrating power and anti-interference ability, but the structure is complex, the radiation power is large (watt level), and the price is expensive. It is suitable for earthquake or landslide environments It is not suitable for the rapid search and rescue of the wounded, nor is it suitable for sensor nodes that monitor human breathing or heartbeat signals without contact

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  • Micropower impact-type biological radar front end
  • Micropower impact-type biological radar front end
  • Micropower impact-type biological radar front end

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Embodiment Construction

[0020] Such as figure 1 As shown, a micro-power impulse bio-radar front end includes a narrow pulse shaping module that generates a narrow pulse sequence, and a related detection module that demodulates the narrow pulse echo modulated by the human body due to breathing and heartbeat caused by the chest wall micro-motion. , The distance gate module for distance scanning in the detection area and the integral-derivative module for extracting the information of human breathing and heartbeat micro-motion.

[0021] Among them, the narrow pulse shaping module is composed of a signal source and a narrow pulse shaping circuit, which can generate a narrow pulse sequence of hundreds of ps to tens of ns and transmit it to life through the transmitting antenna tan1; the distance gate module is composed of a variable delay line circuit, which is composed of 8-bit high and low level control to achieve distance gating and scanning in the detection area; the related detection module is composed o...

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Abstract

The invention discloses a micropower impact-type biological radar front end which comprises a narrow pulse forming module used for generating a narrow pulse sequence, a correlation detection module, a distance gate module and an integral-differential module, wherein the correlation detection module is used for demodulating narrow pulse echoes modulated by thoracic wall micromotion caused by breathing and palpitation of a human body; the distance gate module is used for scanning the distance in a detection region; and the integral-differential module is used for extracting breathing and palpitation micromotion information of the human body. By virtue of being externally connected with transmitting and receiving antennae, a direct current power supply and a simple amplifying circuit, the micropower impact-type biological radar front end can be used for performing nonrestraint and noncontact respiratory rate and heart rate monitoring on the human body, can be widely applied to monitoring physiologic signals of clinical special patients with empyrosis and infections, household elders and other patients with chronic diseases.

Description

Technical field [0001] The invention relates to a biological radar front end, in particular to a micro-power impulse type biological radar front end capable of non-contact detection of the human body. Background technique [0002] With the needs of biomedical engineering, radar, electronics, computer technology, military, medical, and social development, many domestic and foreign scholars have proposed a new concept of biological parameter signal detection technology-Bioradar. This technology integrates radar technology and biomedical engineering technology. It can penetrate non-metallic media (brick walls, ruins, etc.). It does not require any electrodes or sensors to contact living bodies and can detect the lives of living bodies at a long distance. Signals (breathing, heartbeat, etc.), to solve the problems of living bodies that cannot be detected by the naked eye. Therefore, this technology can be widely used in disaster rescue (searching for the injured in earthquakes and l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0205A61B5/08
Inventor 路国华王健琪李盛荆西京吕昊薛慧君张华王华
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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