# US 11,994,312 B2 · Air-conditioning apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,994,312 B2 - Document ID: US11994312B2 - Status: Granted - Kind: B2 - Application number: 17/629,842 - Filed: 2019-10-31 - Published: 2022-09-01 - Granted: 2024-05-28 - Earliest claimed: 2019-10-31 - Assignees: Mitsubishi Electric Corporation - Applicants: Mitsubishi Electric Corporation - Inventors: Yasushi Ota; Yoshiyuki Takashima - Web page: https://patentgrep.com/patent/US11994312B2 ## CPC - F24F 11/50: characterised by user interfaces or communication - F24F 11/58: using Internet communication - F24F 11/88: Electrical aspects, e.g. circuits - G06T 5/50: using two or more images, e.g. averaging or subtraction - F24F 2110/10: Temperature - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract An air-conditioning apparatus includes a refrigerant circuit, a thermal imaging sensor acquiring thermal information on an air-conditioned room, and a wireless LAN communication unit including an interface board connector and a wireless LAN interface. The interface board connector connects to an operation information signal line, through which operation information on the refrigerant circuit is transferred, and a thermal-imaging-sensor information signal line, through which thermal-imaging-sensor information based on the thermal information on the air-conditioned room acquired by the thermal imaging sensor is transferred. The wireless LAN interface separately transmits the operation information, transferred through the operation information signal line connected to the interface board connector, and the thermal-imaging-sensor information, transferred through the thermal-imaging-sensor information signal line connected to the interface board connector, to an external electronic device. ## Claims ### Claim 1 An air-conditioning apparatus comprising: a refrigerant circuit in which a compressor, a load side heat exchanger, an expansion valve, and a heat source side heat exchanger are connected by pipes through which refrigerant is circulated; a thermal imaging sensor configured to acquire thermal information on an air-conditioned room; and a wireless local area network (LAN) communication unit including an interface board connector and a wireless LAN interface, the interface board connector connecting to an operation information signal line, through which operation information on the refrigerant circuit is transferred, and a thermal-imaging-sensor information signal line, through which thermal-imaging-sensor information based on the thermal information on the air-conditioned room acquired by the thermal imaging sensor is transferred, the wireless LAN interface being configured to separately transmit the operation information, transferred through the operation information signal line connected to the interface board connector, and the thermal-imaging-sensor information, transferred through the thermal-imaging-sensor information signal line connected to the interface board connector, to an external electronic device. ### Claim 2 (depends on 1) The air-conditioning apparatus of claim 1, further comprising: an indoor board having a first indoor board connector connecting to the operation information signal line, a main central processing unit (CPU) connected to the first indoor board connector and configured to transfer the operation information on the refrigerant circuit to the wireless LAN interface through the operation information signal line, a second indoor board connector connecting to the thermal-imaging-sensor information signal line, and a sub-CPU connected to the second indoor board connector and configured to transfer, as the thermal-imaging-sensor information representing a thermal image, the thermal information on the air-conditioned room acquired by the thermal imaging sensor to the wireless LAN interface. ### Claim 3 (depends on 1) The air-conditioning apparatus of claim 1, further comprising: a first indoor board having a first indoor board connector connecting to the operation information signal line and a main CPU connected to the first indoor board connector, the main CPU being configured to transfer the operation information on the refrigerant circuit to the wireless LAN interface through the operation information signal line; and a second indoor board having a second indoor board connector connecting to the thermal-imaging-sensor information signal line and a sub-CPU connected to the second indoor board connector, the sub-CPU being configured to transfer, as the thermal-imaging-sensor information representing a thermal image, the thermal information on the air-conditioned room acquired by the thermal imaging sensor to the wireless LAN interface through the thermal-imaging-sensor information signal line. ### Claim 4 (depends on 3) The air-conditioning apparatus of claim 3, further comprising: a wireless LAN interface board including thereon the interface board connector and the wireless LAN interface, wherein the operation information signal line and the thermal-imaging-sensor information signal line are sheathed in a bifurcated cable. ### Claim 5 (depends on 2) The air-conditioning apparatus of claim 2, wherein the thermal-imaging-sensor information is transferred from the indoor board to the wireless LAN interface through the thermal-imaging-sensor information signal line by using a serial peripheral interface (SPI) communication method, and wherein the operation information is transferred from the indoor board to the wireless LAN interface through the operation information signal line by using a communication method whose communication speed is lower than that of the SPI communication method. ### Claim 6 (depends on 1) The air-conditioning apparatus of claim 1, wherein the wireless LAN communication unit is incorporated in an indoor unit of the air-conditioning apparatus.