Intelligent locking system based on multi-person control

Abstract

The invention relates to the technical field of power system informatization and automation, and discloses an intelligent locking system based on multi-person control. The system comprises a server, amobile terminal, an intelligent key and an intelligent lock, wherein the server is used for storing state information of the intelligent lock; the intelligent lock is provided with an RFID chip; theRFID chip is provide with a unique lock code which can be identified by the intelligent key; a mobile client is provided with a lock control unit and is used for receiving and verifying the lock code,read by the intelligent key, of the corresponding intelligent lock, and sending an unlocking or locking operation command to the intelligent key after the lock code is correct; the mobile terminal isprovided with a linkage management unit performing linkage card hanging and linkage card splitting on the intelligent lock before unlocking. The system prevents personal injury and equipment damage caused by unilateral misoperation of operating personnel through linkage card hanging and linkage card splitting, ensures that management is more convenient through an operating mode of intelligent equipment and mobile internet, and improves the work efficiency.

Description

technical field [0001] The invention relates to the anti-error technology of electric power system, in particular to the locking technology for the power system to mistakenly send electricity or high-temperature, high-pressure medium and dangerous medium to the working place, and belongs to the technical field of electric power system informatization and automation. Background technique [0002] In the power system, live equipment and high-temperature and high-pressure pipelines are the main sources of danger. Mistakenly sending electricity or high-temperature and high-pressure media to the workplace will cause serious equipment damage or personal injury or death. For this reason, "GB 26860-2011-Electrical Safety Work Regulations (Electrical Parts of Power Plants and Substations)" stipulates that when the equipment is powered off and working, the control power and closing energy of the circuit breakers and isolating switches on each side of the power outage equipment should b...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the electric power enterprises in our country take measures to lock the switch or valve by the operator. When the isolating switch is disconnected or the valve is closed, the operator installs a mechanical padlock and corresponding sign on the operating mechanism, and the key is provided by the operator. The problem with this kind of locking method is that the operator can directly restore the safety measures without the knowledge of the maintenance personnel, which may cause the risk of electric shock and other accidental injuries to the maintenance personnel

For example, on February 25, 2016, during maintenance work in the hot air channel at the entrance of the Coal Mill of No. 1 Boiler C of Datang Changshan Thermal Power Plant, a steam pipe valve was accidentally opened by the operator, resulting in an accident involving hot air burning soup, resulting in the death of 3 people. Mass Production Safety Liability Accidents

In a small number of electric power enterprises, the locking measures for switches or valves are jointly carried out by operators and maintenance personnel. When the isolating switch or valve is closed, the operators and the person in charge of maintenance install mechanical padlocks on the operating mechanism. The isolating switch or valve can only be operated after being locked, which can prevent the operator from unilaterally restoring safety measures to cause injury, but in this way, the person in charge of maintenance needs to carry a large number of locks, and when a certain equipment is overhauled, many The person in charge of maintenance needs to add locks (for example, there are 12 management personnel in a factory for generator maintenance, and 12 mechanical locks need to be installed at the outlet switch of the generator). The implementation is not strict, leaving a large potential safety hazard; when it is necessary to restore safety measures for emergency power transmission, there may be management personnel who are not on site, so that the lock cannot be released, resulting in delays in power supply to important users

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