Warning system based on knocking signal
A technology of knocking signals and early warning systems, applied in tactile transmission signal systems, signal devices, alarms, etc., can solve problems such as difficult data processing, insufficient user monitoring capabilities, and difficult operation of smart mattresses, so as to reduce interference and improve correctness effect
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Embodiment 1
[0044]The invention is especially suitable for acutely ill users and elderly users. As we all know, patients with acute diseases such as stroke patients will basically lose their language function first, and then lose their motor function. At this time, patients can no longer use terminals such as 120 to save themselves. Sending out a self-rescue signal undoubtedly provides a lot of time for one's own rescue. However, since the mattress receives too much external load, in this case, even if the patient sends a knock signal to the mattress body, it may not be recognized by the system, resulting in self-rescue failure. Therefore, the present invention provides an early warning system based on tapping signals, which is especially suitable for people with cerebral infarction / myocardial infarction.
[0045] An early warning system based on knocking signals includes a mattress body 1 , a sensing unit 2 , a processing unit 3 , an early warning unit 4 , a decision unit 7 and a monito...
Embodiment 2
[0049] This embodiment discloses an early warning system based on a tap signal. In the case of no conflict or contradiction, the whole and / or part of the content of the preferred implementations of other embodiments can be used as a supplement to this embodiment. Preferably, the system can be realized by the method of the present invention and / or other alternative modules.
[0050] Preferably, the processing unit 3 can also use the STA / LTA algorithm to identify the tap signal, and obtain the pulse frequency and time interval of the tap signal. Wherein, when the ratio of the average value STA in the long time window to the average value LTA in the short time window is greater than a preset ratio threshold, the processing unit 3 starts the warning unit 4 at least once. And / or the processing unit 3 records a tap pulse and the time when the tap pulse is recorded, so as to confirm the pulse frequency and time interval of the tap signal, and store it in the abnormal statistics modul...
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