Old people falling alarm platform and method based on Doppler radar technology

Abstract

The invention discloses an old people tumble alarm platform and method based on Doppler radar technology. The platform comprises a terminal collection alarm device, a gateway and a server. The terminal collection alarm devices are installed in a bedroom, a living room and a bathroom respectively, wherein the terminal collection alarm device adopts an FPGA + DSP + ARM structure, radar signals are quickly acquired by utilizing an FPGA, the DSP performs quick FFT operation on the signals and realizes intelligent tumble judgment, and the ARM is used as a control unit of the whole device to realizeremote transmission of data and tumble alarm; the terminal collection alarm device uploads the acquired data to the server through the gateway, draws a real-time data curve and a historical data curve, and masters the dynamic state of the elderly at any time. According to the fall alarm platform, a non-contact radar detection technology is adopted, the defects that a wearable device is poor in wearing comfort, equipment is difficult to clean and the like are overcome, and the defects that fall detection based on a video method is not beneficial to privacy protection in toilets, bedrooms and other places, the application range is limited and the like are overcome.

Description

technical field [0001] The invention belongs to the technical field of monitoring, in particular to an elderly fall alarm platform and method based on Doppler radar technology. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] At present, the situation of my country's aging population is becoming increasingly serious, artificial intelligence will become an important technical means to promote medical construction, and will also drive smart nursing equipment for the elderly to enter a period of rapid development. Accidental falls of the elderly are the "number one killer" that endangers the physical and mental health of the elderly. The World Health Organization pointed out that the probability of falls for the elderly over 65 years old is 28%-35%, and the probability for those over 70 years old is 32%-42%. As the physical condition of the ...

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Problems solved by technology

[0004] The inventor found in the research that although the fall detection method based on wearable devices is currently a research hotspot in medical institutions and scientific research institutions at home and abroad, this method has disadvantages such as poor wearing comfort and difficult equipment cleaning, while the fall detection method based on video The detection is not conducive to privacy protection and limited scope of application in places such as toilets and bedrooms. The vital sign signal monitoring technology based on Doppler bio-radar has non-contact, low cost, strong penetrating ability, and strong anti-interference ability. It has been widely used in the monitoring of the elderly due to the characteristics of small interference of ambient temperature and humidity

However, there is no unified platform solution for non-contact fall detection of the elderly

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