A Method of Finding Objects Based on Bluetooth Signal Strength

Abstract

The invention discloses an article searching method based on Bluetooth signal strength. According to the article searching method based on the Bluetooth signal strength, a low-power Bluetooth device is taken as a signal transmitter, while a mobile terminal is taken as a receiver; the environmental interference is weakened in the receiver by use of a software algorithm, and the suggestion on a searching direction is precisely provided for a user according to a plurality of continuous detection results of the signal strength in a plurality of positions, and therefore, the target article searching efficiency is improved; the low-power Bluetooth device can be supplied with power for a long time only by use of a button cell, and is in a standby state at ordinary times and transmits signals at a relatively low frequency; when the transmitter hopes to search for the receiver, the transmitter transmits a start command to activate the receiver to a working state, so that the receiver is capable of transmitting signals at a relatively high frequency; after the searching process is finished, a standby command is transmitted to the receiver so that the receiver turns to the standby state again, and therefore, the time of endurance of the receiver is effectively increased.

Description

technical field [0001] The invention belongs to the technical field of intelligence, and in particular relates to a method for finding objects based on Bluetooth signal strength. Background technique [0002] In everyday life, people are often annoyed by objects that are difficult to find in a certain space: For example, people may be annoyed by forgetting where their bicycles are parked in a large bicycle parking lot. [0003] There are three kinds of solutions in the prior art: the first one is to use wireless signal transceiver to control the buzzing of the buzzer to help the user find the target item, the receiving device has a buzzer, and the sending device is carried by the user. When the item is lost, the sending device sends an instruction, and the receiving device starts a buzzer to make a sound after receiving the instruction, to remind the user of the location of the target item. The second method is to calculate the strength of the signal after the receiving dev...

AI Technical Summary

Problems solved by technology

The third method is to find a person to start the buzzer of the receiving device through voice calls to make it sound, which is similar to the first method, but compared with the first method, there is a greater possibility of misjudgment, and when the receiving device is working more power consumption

[0004] However, the above-mentioned solution has the following two disadvantages: first, the volume of the receiving device will inevitably be relatively large in the method of using the buzzer, which is not suitable for binding with smaller objects such as keys, and consumes a large amount of power, so long-term use Need to replace power supply frequently

However, the method of finding objects based on Bluetooth technology has the following disadvantages: 1) the early deployment project time and financial resources are huge; It is necessary to establish a specific mathematical model of the relationship between Bluetooth signal strength and distance for the electromagnetic environment of a certain space, thus reducing the portability of the system

Therefore, accurate Bluetooth positioning is still difficult to meet our requirements

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