Wireless location device

Abstract

The invention relates to a wireless location device comprising a passive RFID unit, and an antenna, a clock unit, a button, an acceleration sensor and a power management unit which are connected to an SOC unit. The SOC unit is used to receive a wireless signal transmitted by a location beacon, acquire location information according to the wireless signal, communicate with other wireless location devices or wireless location base stations in a networked two-way mode and send the location information to the other wireless location devices or wireless location base stations. The clock unit is used to make the wireless location device, the other wireless location devices or wireless location base stations and the location beacon periodically awakened and work at the same time. The other wireless location devices or wireless location base stations upload the received location information to a center host. The wireless location device provided by the invention can have the functions of a wireless location terminal and the functions of a wireless location base station at the same time through the SOC unit, namely, wireless networked communication, positioning, wireless sensing, wireless control and other functions can be achieved simultaneously.

Description

technical field [0001] The invention relates to the technical fields of wireless communication and the Internet of Things, in particular to a wireless positioning device. Background technique [0002] There are many types of equipment and technologies for positioning, sensing, and control based on IEEE802.1.5.4. Positioning based on IEEE802.1.5.4 is easily affected by the surrounding environment because it uses three-point positioning technology based on signal field strength or signal-to-noise ratio. Changes lead to a decrease in positioning accuracy. When it is applied to closed scenes such as civil air defense underground projects and large buildings, due to the complex environment structure and serious occlusion, signal coverage, positioning accuracy, engineering cost, and construction difficulty often become a dilemma. For commonly used Using radio frequency indoor distribution technology to solve signal coverage in complex scenes, since the positioning based on IEEE802...

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Problems solved by technology

[0002] There are many types of equipment and technologies for positioning, sensing, and control based on IEEE802.1.5.4. Positioning based on IEEE802.1.5.4 is easily affected by the surrounding environment because it uses three-point positioning technology based on signal field strength or signal-to-noise ratio. Changes lead to a decrease in positioning accuracy. When it is applied to closed scenes such as civil air defense underground projects and large buildings, due to the complex environment structure and serious occlusion, signal coverage, positioning accuracy, engineering cost, and construction difficulty often become a dilemma. For commonly used Using radio frequency indoor distribution technology to solve signal coverage in complex scenes, since the positioning based on IEEE802.1.5.4 uses the positioning base station as the positioning reference coordinate point, the radio frequency indoor distribution technology will lead to confusion of positioning reference coordinate points, so it cannot be implemented; Furthermore, the existing equipment and technologies based on IEEE802.1.5.4 often only solve one or two of the main applications such as positioning, sensing, control, and transmission, and have not yet integrated the three applications into one positioning system. in the card

[0003] At present, because the positioning of the existing positioning device is achieved through distance measurement between the mobile positioning terminal and the base station, and the base station is used as the positioning reference coordinate point, this method is difficult to work in complex scenes or indoor distribution systems, and it cannot be equipped with positioning terminals at the same time The function with the base station; and can only communicate with the base station, and the terminal does not have the function of ad hoc network communication

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