uwb electronic tag and its wake-up method and vehicle positioning system

An electronic label, positioning signal technology
CN106128145BActive Publication Date: 2019-03-05SHENZHEN GENVICT TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN GENVICT TECH
Publication Date
2019-03-05

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Abstract

The invention discloses a UWB electronic label and a wake-up method thereof, and a vehicle positioning system and belongs to the intelligent traffic field. The wake-up method of the UWB electronic label comprises steps that a wireless signal sent by a base station of an intelligent traffic system is received by the UWB electronic label; the UWB electronic label is switched from a low power consumption state to a work state according to the wireless signal. According to the wake-up method, the wireless signal is employed to realize an awake-up effect, the UWB electronic label is waken up into the work state after a vehicle enters a communication area of the base station, the UWB electronic label communicates with the base station to carry out subsequent work, the UWB electronic label is prevented from being waken up in non-communication areas, so power consumption of the UWB electronic label is reduced, and service life of the UWB electronic label is prolonged.
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Description

technical field

[0001] The invention relates to an intelligent transportation system, in particular to a UWB electronic tag, a wake-up method thereof and a vehicle positioning system. Background technique

[0002] With the increasing number of vehicles, the problem of difficult and difficult parking is becoming more and more obvious. As a result, applications such as on-street parking, parking space search, and reverse car search have emerged, all of which require wireless positioning technology.

[0003] UWB (Ultra Wideband) is a carrier-free communication technology with a relative bandwidth greater than 25% and a center frequency greater than 500MHz. It uses nanosecond to picosecond non-sine wave narrow pulses to transmit data. It is used in vehicle positioning and vehicle distance testing. With many advantages such as high positioning accuracy and reliable positioning, it provides favorable conditions for the intelligent management of vehicles in parking lots, roadsides...

Claims

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