Air-conditioning control method and air-conditioning control device

An air-conditioning control method comprising:

• periodically acquiring, by a processor and from a first sensor device at a predetermined communication frequency, a first sensor value transmitted by the first sensor device at the predetermined communication frequency, the first sensor device being provided at a different position than a second sensor device within a same space, the first sensor device including a memory that stores the measured first sensor value before transmitting to the processor;
• periodically acquiring, by the processor and from the second sensor device at a predetermined measuring frequency, a second sensor value that is measured the predetermined measuring frequency, wherein the second predetermined measuring frequency is higher than the predetermined communication frequency;
• determining, by the processor, whether or not the first sensor value is acquired from the first sensor device;
• in response to determining that the first sensor value is acquired, performing machine learning of a prediction model by the processor based on a correlation between the first sensor value and the second sensor value;
• determining, by the processor, whether or not the second sensor value is acquired;
• in response to determining that the second sensor value is acquired, generating a first sensor predicted value from the second sensor value by the processor using the prediction model in a period in which the second sensor value is acquired and the first sensor value is not acquired;
• determining, by the processor, an operation of an air-conditioning apparatus based on the first sensor predicted value;
• and
• controlling, by the processor, the air-conditioning apparatus based on the determined operation,
• wherein the air-conditioning control method further comprises changing the first predetermined communication frequency by using the first sensor predicted value and the first sensor value, and
• the processor periodically acquires, from the first sensor device at the changed predetermined communication frequency, the first sensor value transmitted by the first sensor device at the changed predetermined communication frequency,
• wherein the first sensor device measures the first sensor value at the predetermined measuring frequency, and stores in the memory of the first sensor device, such that a plurality of first sensor values are stored in the memory of the first sensor device before transmitting to the processor at the predetermined communication frequency,
• in each of the periodically acquiring at the predetermined communication frequency, the processor acquires, from the first sensor device, a number of first sensor values among the plurality of first sensor values stored in the memory of the first sensor device, wherein the number of the first sensor values acquired includes at least two first sensor values,
• the processor changes a number of first sensor values to acquire in a subsequent acquiring of the periodically acquiring of the first sensor value, by using the first sensor predicted value and a number of first sensor values acquired in a current acquiring, and
• in the subsequent acquiring of the periodically acquiring at the predetermined communication frequency, the processor acquires, from the first sensor device, the changed number of first sensor values transmitted by the first sensor device.