Electronic seal

Abstract

The invention discloses an electronic seal, which comprises a shell and a lock piece, wherein the shell is provided with a passage, a circuit board and a power supply are arranged in the shell, the circuit board is at least provided with a control circuit and at least three terminals, and each terminal is electrically connected with the control circuit and passes through the inner circumference surface of the passage; and the lock piece comprises a rod body, the surface of the rod body is provided with at least one conduction face, the rod body passes through the passage and then is selectively clamped and fixed so that the circuit state among the terminals is changed when the rod body gets in and out of the passage, and the control circuit generates a prompt signal when the circuit stateamong the terminals is changed. The movement of the lock piece is actively detected, and the movement information of the lock piece is informed to a user in time for processing, so goods in a counterare prevented from being randomly stolen and the transport safety of the goods can be improved.

Description

technical field [0001] The invention relates to an electronic seal, especially a novel electronic seal with a sensing circuit to instantly know whether a lock has been damaged. Background technique [0002] It is known that electronic locks have been used in the transportation of containers to prevent the container from being opened arbitrarily under unknown circumstances, or even exchange or steal the goods in the container. Using the radio frequency chip and antenna device installed on the lock, the lock can be achieved. The use effect of the lock can be quickly sensed by the machine to display the information recorded in the lock, and the information of the items loaded in the container can be obtained, such as the electronic lock described in Taiwan Patent No. TWI292007, which has described the structure and use of this electronic lock However, when the patented electronic lock is actually used, it still needs to pass through the port or a specific monitoring station to ...

AI Technical Summary

Problems solved by technology

[0002] It is known that electronic locks have been used in the transportation of containers to prevent the container from being opened arbitrarily under unknown circumstances, or even exchange or steal the goods in the container. Using the radio frequency chip and antenna device installed on the lock, the lock can be achieved. The use effect of the lock can be quickly sensed by the machine to display the information recorded in the lock, and the information of the items loaded in the container can be obtained, such as the electronic lock described in Taiwan Patent No. TWI292007, which has described the structure and use of this electronic lock However, when the patented electronic lock is actually used, it still needs to pass through the port or a specific monitoring station to detect whether the lock has been damaged. If the container is damaged during transportation and property loss occurs, it is not easy Timely discovery and emergency response, there is still the risk of being stolen and replaced

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