UWB positioning wrist strap

Abstract

The invention relates to the technical field of wireless positioning, and particularly relates to a UWB positioning wrist strap. The wrist strap comprises a positioner, a first belt, a second belt and a buckle. The overlapped part of the first belt and the second belt is provided with a fixing ring; a first groove is formed in the inner side wall of the fixing ring; the first groove corresponds to the first belt and the second belt, and a fixing block and a fixing spring are arranged in the first groove; and tooth-shaped grooves are formed in the positions, corresponding to the fixing teeth, of the first belt and the second belt. After the second belt penetrates through the buckle, the U-shaped magnet is used for moving the two fixing blocks in the direction away from each other, and then a worker moves the movable fixing ring and the U-shaped magnet together to the overlapping position of the first belt and the second belt and then pulls out the U-shaped magnet for cooperation; and therefore, the purpose of reinforcing the first belt and the second belt after the first belt and the second belt are connected is achieved, the situation that a positioned person separates the first belt and the second belt and then takes off the wrist strap is prevented, and the possibility that the positioned person takes off the wrist strap and influences positioning is reduced.

Description

technical field [0001] The invention relates to the technical field of wireless positioning, in particular to a UWB positioning wristband. Background technique [0002] UWB positioning is based on ultra-wideband technology and is a wireless carrier communication positioning technology. It does not use sinusoidal carrier, but uses nanosecond-level non-sinusoidal narrow pulses to transmit data. Therefore, UWB technology has low system complexity and transmit signal power spectrum. Low density, insensitivity to channel fading, low interception capability, high positioning accuracy, etc., for the positioning of a person, the UWB positioning wristband is generally used; in the prior art, screws are used for reinforcement after the wristband is worn to prevent The person to be positioned takes off the positioning wristband, but if the person to be positioned finds a small hard object, he can slowly loosen the screw and take off the positioning wristband, which is not convenient fo...

AI Technical Summary

Problems solved by technology

[0002]UWB positioning is based on ultra-wideband technology, which is a wireless carrier communication positioning technology. It does not use sinusoidal carrier, but uses nanosecond-level non-sinusoidal narrow pulse transmission Therefore, UWB technology has the advantages of low system complexity, low power spectral density of transmitted signals, insensitivity to channel fading, low interception capability, and high positioning accuracy. For positioning of people, UWB positioning wristbands are generally used; now In the prior art, screws are used to reinforce the wristband after wearing it to prevent the person being positioned from taking off the positioning wristband. However, if the person being positioned finds a small hard object, he can slowly loosen the screw and take off the positioning wristband, which is not convenient for positioning The person being positioned performs positioning;

[0003] The prior art has an anti-self-disassembly positioning wristband, including a wristband, a watch case, a watch cover, and a positioning circuit board. The wristband is in the shape of a strip , one end of which is integrally formed with a buckle, and a row of lock holes is provided on the wrist strap; the watch case is a cylindrical thin shell structure with an open upper end, and a space for accommodating the wrist strap and positioning circuit board is formed inside , the side wall of the watch case is provided with a through groove for accommodating the passage of the wristband along the diameter direction, and the width of the through groove is greater than the width of the wristband; the cover is used for pressing on the The watch case is provided with an open end, which encloses the storage space inside the watch case into a closed space; this technical solution adopts a mechanical structure anti-self-disassembly wrist strap, and places the positioning circuit board and the wrist strap in the watch case. The mechanical pressure of the press presses the watch cover on the watch case, so that the track of the person being positioned can be tracked in real time; however, the connection method of the two straps of the wristband still adopts the existing connection method in this technical solution, so it is adopted The positioning person has the risk of taking off the positioning wristband and affecting the positioning, which causes the limitation of the solution

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