Clock control device, air conditioning system and clock control method thereof

Abstract

The invention discloses a clock control device, an air conditioning system and a clock control method for the air conditioning system. The device comprises a switching module, wherein the switching module is used for switching the communication line of each controller into a connection line under a situation that the controllers of more than two air conditioners are subjected to a power failure; through the connection line, charging and discharging modules in all power-failure controllers are connected in parallel, and power is supplied to the clock module of one appointed controller through the charging and discharging modules in all power-failure controllers; after all power-failure controllers are electrified, the connection line is switched back to the communication line; and through the communication line of the appointed controller, the clock information of the clock module of the appointed controller is synchronized to other controllers in all power-failure controllers. By use of the scheme of the invention, the problem that timing accuracy is affected since the cruising ability of a clock chip is weak can be solved, and an effect on improving the cruising ability of the clock chip to improve timing accuracy is achieved.

Description

technical field

[0001] The invention belongs to the technical field of air-conditioning, and in particular relates to a clock control device, an air-conditioning system and a clock control method thereof, in particular to a gold capacitor power supply network and a time synchronization mechanism implementation device for improving the battery life of a real-time clock chip, an air conditioner and its A gold capacitor power supply network and a method for implementing a time synchronization mechanism to improve the battery life of a real-time clock chip. Background technique

[0002] At present, the controller of the air conditioner usually has a real-time clock (RTC) to provide accurate timing services, such as providing timing services such as calendar and system time. When the controller is powered off, a gold capacitor battery built in the controller can usually maintain the power supply capacity for 1 to 4 weeks to ensure the normal timing of the clock chip. In the occa...

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