Intelligent dual-backup power supply of security and protection equipment and power supply switching method

Abstract

The invention discloses an intelligent dual-backup power supply of security and protection equipment and a power supply switching method, on one hand, seamless switching of a main power supply and a standby power supply can be realized when a power supply fault occurs, the power supply switching time is optimized, and the service life of a power supply device is prolonged to the greatest extent; and on the other hand, the dual-backup power supply device can be remotely monitored and managed through an internet data platform. The system mainly comprises an ARM embedded processor, a main power supply, a standby power supply, a control circuit 1, a control circuit 2, a control circuit 3, a control circuit 4, a load current detection circuit, a power supply output distribution matrix, a data storage circuit, a signal acquisition circuit, a network communication circuit, a serial port communication circuit, a touch screen LCD and a coma switching algorithm. The invention provides six power supply switching algorithms to meet user requirements in different fields.

Description

technical field [0001] The invention relates to the field of dual backup power supplies, in particular to an intelligent dual backup power supply and a power switching method for security monitoring equipment. Background technique [0002] The power supply of security equipment requires a reliable power supply device to avoid a series of serious consequences caused by power failure causing security equipment to fail to work normally, resulting in interruption of monitoring, loss of important data and video; in addition, there are many security equipment in actual projects, and the power requirements are different. Larger, it puts forward higher requirements for the intelligent management of power supply of security equipment. At present, the dual backup power supply device of domestic security equipment contains main power supply and backup power supply, and the backup power supply mode includes hot backup and cold backup. The hot backup power supply mode can ensure the sea...

AI Technical Summary

Problems solved by technology

The hot backup power supply mode can ensure the seamless switching of the main and backup power sources, and is suitable for important security monitoring places such as banks. Time duty aging shortens the service life of standby power

In the cold backup power supply mode, the main power supply supplies power to the security equipment when the system is working normally. When the main power supply fails, the power supply device automatically switches to the backup power supply. Since the backup power supply is a capacitive load, from the backup power supply to the normal power supply output, There will be a lag time of 100 to 200ms, and the lag time will cause the powered monitoring device to reset and restart due to power failure. , video loss, and what is more serious is that the monitoring equipment is completely in a monitoring failure state during this period of time. For applications with high security requirements, a short-term monitoring interruption will cause serious consequences

[0003] At present, domestic dual backup power supply devices cannot effectively solve the above problems. The purpose of the present invention is to provide an intelligent dual backup power supply and power switching algorithm for security equipment (hereinafter referred to as: Huidian switching algorithm). The backup power supply can be seamlessly switched, and the power switching time is optimized to maximize the service life of the power supply device. On the other hand, the dual backup power supply device can be remotely monitored and managed through the Internet data platform

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