Remote controller of air-conditioning system

• US 10,365,002 B2
• Filed: 05/26/2015
• Issued: 07/30/2019
• Est. Priority Date: 05/26/2015
• Status: Active Grant

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: Ino, Hiroyuki, Muramatsu, Hidetoshi
• Primary Examiner(s): Landrum, Edward F
• Assistant Examiner(s): Park, Chang H.
• Application Number:
  US15/554,787
• Publication Number:
  US 20180038608A1
• Time in Patent Office: 1,526 Days
• CPC Class Codes: F24F 11/00 Control or safety arrangements
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/39 Monitoring filter performance
• CPC Class Codes: F24F 11/56 Remote control
• CPC Class Codes: F24F 11/62 characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
• CPC Class Codes: F24F 11/64 using pre-stored data

Abstract

A remote controller of an air-conditioning system enables operation state diagnosing. A remote controller of an air-conditioning system having an outdoor device, and an indoor device connected to the outdoor device includes a communication unit that performs bidirectional communication with the indoor device in a wired or wireless manner, and a memory that has stored therein operation-state diagnosing tables for every operation mode that are used in maintenance and inspection of the air-conditioning system. An appropriate one of the operation-state diagnosing tables is used according to an operation mode and an operation time of the air-conditioning system.

Claims

1. A remote controller of an air-conditioning system including an outdoor device, and an indoor device connected to the outdoor device, the remote controller comprising:

a microcomputer; and

a memory, wherein

the memory that has stored therein, for each operation mode of the air-conditioning system, a plurality of operation-state diagnosing tables each corresponding to a different amount of operation time, each of the operation-state diagnosing tables are used for extracting necessary inspection items from an operation state in maintenance and inspection of the air-conditioning system,

the microcomputer is configured to

perform bidirectional wired or wireless communication with the indoor device to collect operation information including an operation time of the air-conditioning system;

select and use an appropriate one of the operation-state diagnosing tables according to an operation mode of the air-conditioning system and the operation time of the air-conditioning system, wherein

at least one of the operation-state diagnosing tables indicates an area therein corresponding to a normal operation range of the air-conditioning system,

the microcomputer is further configured to receive a correction to the area corresponding to the normal operation range and store the corrected at least one of the operation-state diagnosing tables.

2. The remote controller of the air-conditioning system according to claim 1, wherein the microcomputer is further configured to

determine whether current operation times of the indoor device and the outdoor device are equal to or less than set operation-time threshold values, respectively, and

automatically switch one of the operation-state diagnosing tables stored in the memory based on a result of the determination.

3. The remote controller of the air-conditioning system according to claim 1, wherein the microcomputer is further configured to control operation of the outdoor device and the indoor device.

4. An air-conditioning system with remote controller comprising:

the air conditioning system; and

the remote controller,

the air-conditioning system including

an outdoor device; and

an indoor device connected to the outdoor device,

the remote controller is configured to be connected to the air-conditioning system,

the remote controller comprising;

a microcomputer; and

a memory, wherein

the memory that has stored therein, for each operation mode of the air-conditioning system, a plurality of operation-state diagnosing tables each corresponding to a different amount of operation time, each of the operation-state diagnosing tables are used for extracting necessary inspection items from an operation state in maintenance and inspection of the air-conditioning system,

the microcomputer is configured to

perform bidirectional wired or wireless communication with the indoor device to collect operation information including an operation time of the air-conditioning system;

select and use an appropriate one of the operation-state diagnosing tables according to an operation mode of the air-conditioning system and the operation time of the air-conditioning system, wherein

at least one of the operation-state diagnosing tables indicates an area therein corresponding to a normal operation range of the air-conditioning system,

the microcomputer is further configured to receive a correction to the area corresponding to the normal operation range and store the corrected at least one of the operation-state diagnosing tables.

5. The air-conditioning system with remote controller according to claim 4, wherein the microcomputer is further configured to

determine whether current operation times of the indoor device and the outdoor device are equal to or less than set operation-time threshold values, respectively, and

automatically switch one of the operation-state diagnosing tables stored in the memory based on a result of the determination.

6. The air-conditioning system with remote controller according to claim 4, wherein the microcomputer is further configured to control operation of the outdoor device and the indoor device.