Method and device for preventing false alarm of Bluetooth anti-lost device

Abstract

The invention provides a method and device for preventing false alarms of a bluetooth anti-lost device. Including: monitoring the signal strength of the Bluetooth signal between the user terminal and the Bluetooth anti-lost device; obtaining motion data; the motion data includes: the first step count data of the user carrying the user terminal, and / or the second movement of the Bluetooth anti-lost device Step data; if the signal strength is less than the strength threshold, and at least one of the judgment conditions is satisfied, the user terminal is triggered to alert the user, and the user terminal sends an alarm trigger message to the Bluetooth anti-lost device; the judgment conditions include: the first step number data is greater than The first step threshold and the second step data are greater than the second step threshold. In the present invention, the first step data of the user carrying the user terminal exceeds the first step threshold, and / or the second step data of the Bluetooth anti-lost device moves beyond the second step threshold as the condition for starting the alarm, which can avoid the occurrence of the alarm. There is the problem of riskless false alarm in the bluetooth anti-lost device in the technology.

Description

technical field [0001] The invention relates to bluetooth technology, in particular to a method and device for preventing false alarms of a bluetooth anti-lost device, and belongs to the field of wireless communication. Background technique [0002] In daily life, people often leave key small items somewhere when they go out or outdoors, such as forgetting to bring the keys when going out, and leaving wallets when they are outdoors. In order to remind people not to leave items behind, a Bluetooth anti-lost device has appeared on the market, which binds the Bluetooth anti-lost device with other items and connects it to smart terminals such as mobile phones through Bluetooth. When the bluetooth signal is weak, the bluetooth anti-lost device can send an alarm to remind people that items are missing. [0003] However, this Bluetooth anti-lost device has many inconveniences during use, especially the situation that false alarms often occur. Since the Bluetooth signal is a 2.4G ...

AI Technical Summary

Problems solved by technology

[0003] However, this bluetooth anti-lost device has many inconveniences during use, especially the situation that false alarms often occur

Since the Bluetooth signal is a 2.4G high-frequency wave signal, its diffraction performance is poor. As a result, when the Bluetooth signal travels in the air, if it encounters an obstacle, the signal strength will be severely attenuated. Lost device alarm, for example, the user walks from the living room to the bedroom with a mobile phone, and the Bluetooth signal is weakened to the signal threshold when passing through the wall between the living room and the bedroom, the Bluetooth anti-lost device will generate a false alarm

In addition, in a small space environment, when the Bluetooth signal propagates in the air, it is very easy to interfere, which will also lead to a rapid attenuation of the Bluetooth signal strength. When the signal attenuates to the signal threshold, it will cause false alarms on the Bluetooth anti-lost device.

[0004] Therefore, during the use of the bluetooth anti-lost device in the prior art, false alarms often occur due to the limitation of bluetooth signal propagation

Images