Concentrated air conditioner system controller

Abstract

The invention provides a concentrated air conditioner system controller. A control unit of the concentrated air conditioner system controller comprises a first single chip microcomputer and a second single chip microcomputer. The first single chip microcomputer and the second single chip microcomputer conduct two-machine communication through a double-port RAM. Both the first single chip microcomputer and the second single chip microcomputer are connected with attachment units comprising clock circuits, watchdog circuits, storages and reference source circuits respectively. An Ethernet unit, an isolation 485 unit, a USB unit and an SD card are connected with the first single chip microcomputer, and a CAN isolation circuit, an RS 485 isolation circuit, an output control unit, an input control unit, an isolation input unit and an isolation output unit are connected with the second single chip microcomputer. The input control unit comprises an A / D conversion module and a signal processing circuit. The output control unit comprises a D / A conversion module and a voltage-current conversion circuit. The isolation input unit is connected with a wiring port. The isolation output unit is connected with a drive circuit. The controller is comprehensive in function, remarkable in energy saving effect, stable to operate, low in cost and high in operation accuracy and efficiency.

Description

technical field [0001] The invention relates to the field of central air-conditioning control, in particular to a central air-conditioning system controller. Background technique [0002] As the refrigeration equipment for large buildings and industrial facilities, central air-conditioning has become an indispensable refrigeration equipment with the development of industrial economy and the current shortage of domestic industrial electricity consumption. [0003] The central air conditioner provides a stronger cooling effect while consuming a large amount of electric energy. As the core of the central air conditioner control, the controller determines the function and efficiency of the central air conditioner. At present, most of the controllers on the market only have basic control functions. There will be varying degrees of deficiencies in the comprehensiveness, expansibility, and stability and efficiency of actual use, and the performance and power-saving effect of th...

AI Technical Summary

Problems solved by technology

[0003] The central air conditioner provides a stronger cooling effect while consuming a large amount of electric energy. As the core of the central air conditioner control, the controller determines the function and efficiency of the central air conditioner. At present, most of the controllers on the market only have basic control functions. There will be various deficiencies in the comprehensiveness, expansibility, stability and efficiency of actual use, and the performance and power-saving effect of the central air conditioner cannot be fully utilized.

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