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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Problems solved by technology

[0004] The object of the present invention is to, aiming at the above-mentioned defects, provide a clock control device, an air-conditioning system and a clock control method thereof, to solve the problem that the endurance of the clock chip is weak and affect the timing accuracy, and to improve the endurance of the clock chip to improve The effect of timing accuracy

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