Clutch state monitoring circuit and electronic tag adopting same
An electronic label and state monitoring technology, which is applied to record carriers, instruments, and computer parts used in machines, can solve the problems of low integration and high power consumption of the lock-clutch state acquisition circuit, and achieve low power consumption and reduced power consumption. Consumption of power consumption, effect of simple circuit structure
Active Publication Date: 2013-04-03
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology
[0005] The purpose of the present invention is to solve the shortcomings of low integration and excessive power consumption of the existing lock and clutch state acquisition circuit, and propose a clutch state monitoring circuit
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[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0015] like figure 1 As shown, the circuit structure of the clutch state monitoring circuit is as follows: it includes a first inverter G1, a second inverter G2, a third inverter G3, a PMOS transistor T1, a latch D1, and a NAND gate C1. Here, the clutch signal switch S1 and the power supply battery B1 are used as external accessory parts of the clutch state monitoring circuit.
[0016] to combine figure 1 , the connection of each device and port is as follows:
[0017] The first input terminal c of the NAND gate C1, the source of the PMOS transistor T1 and the input terminal D of the latch D1 are connected together as the input terminal of the clutch state signal of the clutch state monitoring circuit; The body end of the PMOS transistor T1 is connected to the external power battery B1, that is, connected to the positive pole of the external...
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The invention discloses a clutch state monitoring circuit and an electronic tag adopting the same. The clutch state monitoring circuit comprises a PMOS (P-channel Metal Oxide Semiconductor) transistor, an NAND gate, a first phase inverter, a level conversion unit and a latch, wherein the level conversion unit also comprises a second phase inverter and a third phase inverter. Compared with the traditional lock clutch state acquisition circuit, the clutch state monitoring circuit disclosed by the invention can be realized by adopting an integrated circuit element with the same process as an electronic tag chip and has a simple structure and lower power consumption, thereby the clutch state monitoring circuit can be integrated inside the electronic tag chip. The electronic tag integrating the clutch state monitoring circuit is used as a monitoring node of the Internet of things of container and safe deposit box circulation in the logistic industry, thus the clutch states of a container and a safe deposit box can be monitored in time, and the safety of the container and safe deposit box circulation is ensured.
Description
technical field [0001] The invention belongs to the technical field of electronic circuits, in particular to a clutch state monitoring circuit and an electronic label using the circuit. Background technique [0002] Radio Frequency Identification (RFID, Radio Frequency Identification) technology is the use of radio frequency long-distance communication to achieve the purpose of identification, tracking, positioning and management of items. Radio frequency identification technology has broad application prospects in many fields such as industrial automation, commercial automation, traffic control management, anti-counterfeiting, and even military use, and has attracted widespread attention. [0003] Electronic tags and readers made using radio frequency identification technology are widely used, especially electronic tags as nodes of the Internet of Things, which can effectively store various information of attached items and transmit these information through communication w...
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IPC IPC(8): G06K19/077
Inventor 文光俊王耀刘佳欣
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA