Abstract: An air conditioner performs air conditioning on the basis of an intake temperature and a first set temperature. An air conditioning control device includes a controller that switches between an ON state and an OFF state of a signal output on the basis of an indoor temperature and the set temperature. A temperature measuring device measures the indoor temperature. A connecting device estimates a user set temperature based on the ON-OFF state of the signal output of the air conditioning control device and the indoor temperature acquired from the temperature measuring device, calculates a second set temperature on the basis of an intake temperature acquired from the air conditioner and an indoor temperature difference between the estimated set temperature and the indoor temperature, and transmits the calculated set temperature to the indoor unit. The air conditioner updates the stored set temperature to the set temperature received from the connecting device.

Abstract: A remote operation receiver (111) is configured to communicate with a communication terminal and receive a remote operation from outside a home. A remote operation monitor (112) is configured to monitor a state of communication with the communication terminal at the remote operation receiver (111) during an operation based on the remote operation. A notifier (114) is configured to provide in the home guidance to urge a user to conduct a manual operation on a manual operation receiver (121) when the remote operation monitor (112) detects that the communication with the communication terminal is discontinued. Then, an indoor device (10) is configured to make a shift to normal operation upon reception of the manual operation within a reference time period.

Abstract: A method is provided for controlling an HVAC unit, including: receiving input signals from a thermostat; setting a mode of the HVAC unit to a heating mode when a heating signal is enabled, or to a cooling mode when a cooling signal is enabled; setting a capacity of the HVAC unit to a set capacity based on the input signals; calculating a heating/cooling change rate based on temperature data received from the HVAC unit; comparing the heating/cooling change rate with a threshold; maintaining the HVAC unit at the set capacity percentage if the heating/cooling change rate is equal to the threshold; lowering the current capacity by a first cooling increment, to a minimum of 0%, if the heating/cooling change rate is above the threshold; and raising the current capacity by a second cooling increment, to a maximum of 100%, if the heating/cooling change rate is below the threshold.

Abstract: An air conditioner performs air conditioning on the basis of an intake temperature and a first set temperature. An air conditioning control device includes a controller that switches between an ON state and an OFF state of a signal output on the basis of an indoor temperature and the set temperature. A temperature measuring device measures the indoor temperature. A connecting device estimates a user set temperature based on the ON-OFF state of the signal output of the air conditioning control device and the indoor temperature acquired from the temperature measuring device, calculates a second set temperature on the basis of an intake temperature acquired from the air conditioner and an indoor temperature difference between the estimated set temperature and the indoor temperature, and transmits the calculated set temperature to the indoor unit. The air conditioner updates the stored set temperature to the set temperature received from the connecting device.

Abstract: The centralized lighting and air conditioning controller controls the light emission of lighting devices using brightness configuration values, and an environmental sensor transmits illuminance measurement values to the centralized lighting and air conditioning controller by wireless communication. The centralized lighting and air conditioning controller receives the illuminance measurement values, and based on the change in the illuminance measurement values and the change in the RSSI when the illuminance measurement values are received, acquires the degree of influence on the environmental sensor by the light from each of the lighting devices, and acquires the unknown or indeterminate position of the environmental sensor based on the degree of influence.

Abstract: A method is provided for controlling an HVAC unit, including: receiving input signals from a thermostat; setting a mode of the HVAC unit to a heating mode when a heating signal is enabled, or to a cooling mode when a cooling signal is enabled; setting a capacity of the HVAC unit to a set capacity based on the input signals; calculating a heating/cooling change rate based on temperature data received from the HVAC unit; comparing the heating/cooling change rate with a threshold; maintaining the HVAC unit at the set capacity percentage if the heating/cooling change rate is equal to the threshold; lowering the current capacity by a first cooling increment, to a minimum of 0%, if the heating/cooling change rate is above the threshold; and raising the current capacity by a second cooling increment, to a maximum of 100%, if the heating/cooling change rate is below the threshold.

Abstract: A remote operation receiver (111) is configured to communicate with a communication terminal and receive a remote operation from outside a home. A remote operation monitor (112) is configured to monitor a state of communication with the communication terminal at the remote operation receiver (111) during an operation based on the remote operation. A notifier (114) is configured to provide in the home guidance to urge a user to conduct a manual operation on a manual operation receiver (121) when the remote operation monitor (112) detects that the communication with the communication terminal is discontinued. Then, an indoor device (10) is configured to make a shift to normal operation upon reception of the manual operation within a reference time period.

Abstract: An electric field intensity measuring circuit measures the electric field intensity of each of multiple communication channels available for data communication. A channel determiner compares electric field intensities measured by an electric field intensity measuring circuit with multiple different thresholds including a first threshold as the carrier sense threshold and a second threshold that is the detrimental interference level the interference of which causes the reception sensitivity to deteriorate, counts the numbers of times that the electric field intensity exceeds the thresholds on each communication channel, and selects a communication channel for use based on the counted numbers of times that the thresholds have been exceeded on the communication channels.

Abstract: The centralized lighting and air conditioning controller controls the light emission of lighting devices using brightness configuration values, and an environmental sensor transmits illuminance measurement values to the centralized lighting and air conditioning controller by wireless communication. The centralized lighting and air conditioning controller receives the illuminance measurement values, and based on the change in the illuminance measurement values and the change in the RSSI when the illuminance measurement values are received, acquires the degree of influence on the environmental sensor by the light from each of the lighting devices, and acquires the unknown or indeterminate position of the environmental sensor based on the degree of influence.

Abstract: An electric field intensity measuring circuit measures the electric field intensity of each of multiple communication channels available for data communication. A channel determiner compares electric field intensities measured by an electric field intensity measuring circuit with multiple different thresholds including a first threshold as the carrier sense threshold and a second threshold that is the detrimental interference level the interference of which causes the reception sensitivity to deteriorate, counts the numbers of times that the electric field intensity exceeds the thresholds on each communication channel, and selects a communication channel for use based on the counted numbers of times that the thresholds have been exceeded on the communication channels.