Children anti-loss wristband based on UWB technology

Abstract

The invention discloses a children anti-loss wristband based on UWB technology. The children anti-loss wristband comprises a central processor, a UWB distance measuring module, a data transmission module, an intelligent reminding module, an LCD display module, an electronic lock, a storage module, a power supply, an LCD display device, a TTS, etc. The central processing module is unidirectionallyconnected with the power supply electrically. The power supply is used for supplying electric energy to the central processor. The intelligent reminding module comprises the TTS and a vibrator. The children anti-loss wristband based on the UWB technology has advantages of low UWB technical power consumption, high multipath effect resistance, high safety, high system complexity, high positioning precision, etc. Therefore the children anti-loss wristband becomes a hot commodity in wireless positioning technology in future. According to the children anti-loss wristband based on the UWB technology, the UWB technology is firstly applied in the anti-loss wristband, thereby realizing no dependence on other network nodes, realizing no restriction by the surrounding environment and no use cost, andovercoming a difficulty that distance measuring and positioning in a complicated environment can be difficultly finished in a traditional positioning system.

Description

technical field [0001] The invention relates to the field of smart devices, in particular to a child anti-lost bracelet based on UWB technology. Background technique [0002] UWB (Ultra Wideband) is a carrier-free communication technology that uses nanosecond to picosecond non-sine wave narrow pulses to transmit data. UWB can realize the data transmission rate of hundreds of Mbit / s to several Gbit / s in the range of about 10 meters. UWB has many advantages such as strong anti-interference performance, high transmission rate, extremely wide bandwidth, low power consumption, and low transmission power. The transmission power of the UWB system is very small, and the communication equipment can realize communication with the transmission power less than 1mW. Low transmit power greatly prolongs the working time of the system power supply. Moreover, the transmission power is small, and the influence of its electromagnetic wave radiation on the human body will be small, and the a...

AI Technical Summary

Problems solved by technology

Now there are some children's anti-lost devices on the market, but most of these devices are positioned by GPS. The positioning accuracy of GPS is too low, and it needs to rely on network nodes and will be limited by the surrounding environment.

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