Anti-dismantle bracelet and anti-dismantle detection method

Abstract

The invention discloses an anti-dismantle bracelet and an anti-dismantle detection method. The anti-dismantle bracelet comprises a central shell, a first wristband, a second wristband and an alarm circuit, wherein the first wristband and the second wristband are respectively connected with the central shell; the alarm circuit comprises a microcontroller, a transmitting circuit, a receiving circuitand an alarm module; the alarm module, the transmitting circuit and the receiving circuit are respectively connected with the microcontroller; the transmitting circuit comprises a transmitting coil;the receiving circuit comprises a receiving coil; the transmitting coil is embedded into the first wristband; the receiving coil is embedded into the second wristband; and when the first wristband isfastened with the second wristband, the receiving coil receives a signal transmitted by the transmitting coil by virtue of near field coupling. The anti-dismantle bracelet disclosed by the invention adopts a wireless coupling manner, the approaching and separating detection of the two wristbands is realized, the defect of contact-type electrical detection in the prior art is overcome, the detection result is accurate and reliable, and wrong alarm difficultly occurs.

Description

[technical field] [0001] The invention relates to an electronic wristband, in particular to an anti-demolition bracelet and an anti-demolition detection method. [Background technique] [0002] Electronic wristbands with integrated positioning or RFID have good application effects in the management of special groups of people, such as prisons, hospitals, nursing homes and other applications. The anti-tampering of the electronic wristband and the warning of the removal of the wristband are necessary functions in these applications. [0003] The invention with the application number CN201711110389.5 discloses an intelligent tamper-resistant bracelet, including an alarm circuit, a waterproof central shell, a first wristband, a second wristband, a buckle seat connected to the end of the first wristband, and a The buckle head at the end of the second wristband, the alarm circuit includes a first alarm circuit embedded in the first wristband, a second alarm circuit embedded in the...

AI Technical Summary

Problems solved by technology

The production process of this structure is complicated, and there needs to be an electrical connection between the alarm lines buried in the two wristbands, and the metal contact device that needs to be electrically connected is exposed in the jack.

The metal contact device may be oxidized or worn for a long time, resulting in poor contact and causing false alarms in the alarm circuit

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