Active light source control circuit for explosion-proof occasions
A light source control and active technology, which is applied in the direction of energy-saving control technology, electrical components, and the use of semiconductor lamps, etc., can solve the problems of insufficient protection level, service life is greatly affected by the environment, and complicated explosion-proof treatment methods. Contact, improve explosion-proof performance and human-computer interaction performance, and have a wide range of applications
Active Publication Date: 2021-10-08
JARI AUTOMATION CO LTD CHINA
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Problems solved by technology
[0004] The purpose of the present invention is to provide an active light source control circuit integrated in communication equipment, which overcomes the problems of complex explosion-proof treatment methods for touch buttons, insufficient protection level, and greater environmental impact on service life in traditional communication equipment, and can solve the problem of The problem of integration of explosion-proof housing and electrical parts improves the performance of explosion-proof use, realizes "one-card" production management in explosion-proof places such as gas stations and depots, ensures the efficiency of information transmission and human-computer interaction in all aspects of production management, and reduces production costs. and maintenance costs
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[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0026] In one embodiment, combined with figure 1 , the present invention provides an active light source control circuit for explosion-proof occasions, including an active light source button circuit integrated in communication equipment, an stm32 single-chip microcomputer control circuit, a power supply circuit, an LCD display circuit, an RFID radio frequency circuit and a 485 communication circuit ;The RFID radio frequency circuit and the 485 communication circuit are in the intrinsically safe area, and the rest of the circuit are in the non-intrinsically safe area;
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The invention discloses an active light source control circuit for explosion-proof occasions, comprising an active light source button circuit, an stm32 single-chip microcomputer control circuit, a power supply circuit, a buzzer circuit, an LCD display circuit, an RFID radio frequency circuit, and a 485 communication circuit. Use the active light source button circuit to realize online modification of on-site communication parameters, retrieval of equipment information, etc., to meet the human-computer interaction in explosion-proof occasions. The invention can overcome the problems of complicated explosion-proof treatment methods of traditional contact buttons, insufficient protection level, and the service life is greatly affected by the environment, without physical contact, and at the same time overcomes the shortcomings of passive light sources relying on natural light compensation; and solves the problem of explosion-proof housings The problem of integration with electrical parts avoids the large-area exposure of the operation panel on the explosion-proof shell, and eliminates the problem of operation failure caused by the easy dirt and rust spots on the contact panel; in addition, the invention can flexibly change the threshold voltage and adjust the sensitivity of the keys. wide range.
Description
technical field [0001] The invention relates to the technical field of control circuits, in particular to an active light source control circuit used in explosion-proof occasions. Background technique [0002] With the continuous development of the smart storage area, more and more gas stations adopt the RFID card "one card" method to realize the automation of production management processes such as user billing, entry and exit of the storage area, automatic loading operations, and weighing, ensuring The efficiency and accuracy of information transmission in all aspects of production management can reduce human errors, improve production efficiency and facilitate vehicle management. The oil station storage areas are mostly explosive hazardous places, so it is necessary to protect the explosion-proof performance of on-site communication equipment (such as card readers and batch controllers). If the communication equipment circuit is not isolated and protected, in the event o...
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IPC IPC(8): H05B45/30
CPCY02B20/30Y02B20/40
Inventor 周鑫华陈睿朱人杰胡旭杰徐华顾曙光姚贵昌张琪闫乐王润泽吕冲
Owner JARI AUTOMATION CO LTD CHINA