Independently working electronic seal

Abstract

The invention relates to an independently working electronic seal, which solves the problems that the existing electronic seal is low in security, bad in reliability, incapable of independently working, short in service life, and the like. The independently working electronic seal is combined with optical circuit data real-time detection technology and microprocessor low-power consumption control technology, and a microprocessor unit inside the electronic seal detects the data state of an optical circuit; when the data on the optical circuit formed by optical fibers changes, the microprocessor generates a random number in a fixed bit number for each time of state changes for marking, and sends the random number to a low-power consumption display unit; and the random number does not change until a new state change occurs. The micro processing unit of the electronic seal wakes up the data state of the detected optical circuit only in a small time window, and then enters a dormant state again; and a display unit only works when being controlled to start manually and delays a fixed time interval, and is in a completely power-off state at ordinary times.

Description

Technical field [0001] The invention relates to a realization method suitable for low power consumption electronic seals. Background technique [0002] People's Republic of China patent 200610118433.2 "container electronic label with container positioning and electronic seal" and 200820059911.1 "electronic seal" announced two electronic seal design methods, but it has the following disadvantages: 1) the tamper-proof design of these electronic seals Mechanical and physical methods such as pressure or magnetism and metal wires are used to form electronic circuits to protect active tags from being removed from objects. These mechanical and physical methods are easy to break through simple methods such as bypassing and shorting, and the system cannot provide Sufficient safety protection, at the same time, the electronic circuit composed of mechanical and physical methods has poor reliability and is prone to failure in complex environments such as water immersion; 2) The electron...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of low security, poor reliability, inability to work independently, and short service life of the existing electronic seals, the present invention proposes a realization mechanism of electronic seals that work independently, and its specific content includes abandoning traditional electronic seals. The seal design method does not use any mechanical and physical means to form an electronic circuit for anti-tampering in the electronic seal, but uses an optical circuit based on an optical fiber, and realizes the anti-tampering design by detecting the optical data transmitted in the circuit; the electronic seal The interior automatically generates a fixed-digit random number for each state change of the optical circuit, and sends it to a low-power display unit. The display unit works under manual control. This mechanism can work completely independently, and the operation is simple and convenient , and has a very high level of security protection, good adaptability to complex external environments and ultra-low power consumption, which completely solves the problems existing in existing electronic seals

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