Electronic apparatus to improve accuracy of estimation of ambient temperature and control method

A control method for an electronic apparatus,

• wherein the electronic apparatus comprises:
• a first thermometer that detects a first temperature corresponding to an ambient temperature of an environment in which the electronic apparatus is used,
• wherein the control method comprises:
• when the electronic apparatus has been switched from a power-OFF state to a power-ON state, obtaining a first time period that is a time period from when the electronic apparatus has been placed in the power-OFF state until when the electronic apparatus has been switched to the power-ON state;
• when the electronic apparatus has been switched to the power-ON state, obtaining an estimated ambient temperature by estimating an ambient temperature based on a second time period and on the first temperature, the second time period being a time period required for the first temperature to decrease to an ambient temperature after the electronic apparatus has been placed in the power-OFF state;
• and
• in a case where the first time period is longer than the second time period, obtaining the first temperature as the estimated ambient temperature, and in a case where the first time period is not longer than the second time period, obtaining the estimated ambient temperature based on the first temperature and on a temperature difference between the first temperature and the ambient temperature corresponding to a time difference between the first time period and the second time period.

A non-transitory computer-readable storage medium storing a program for causing a computer to function as an electronic apparatus comprising:

• a first thermometer that detects a first temperature corresponding to an ambient temperature of an environment in which the electronic apparatus is used;
• a processor;
• and
• a memory storing a program that, when executed by the processor, causes the electronic apparatus to function as:
• an obtainment unit that, when the electronic apparatus has been switched from a power-OFF state to a power-ON state, obtains a first time period that is a time period from when the electronic apparatus has been placed in the power-OFF state until when the electronic apparatus has been switched to the power-ON state;
• and
• a temperature estimation unit that, when the electronic apparatus has been switched to the power-ON state, obtains an estimated ambient temperature by estimating an ambient temperature based on a second time period and on the first temperature, the second time period being a time period required for the first temperature to decrease to an ambient temperature after the electronic apparatus has been placed in the power-OFF state,
• wherein in a case where the first time period obtained by the obtainment unit is longer than the second time period, the temperature estimation unit obtains the first temperature as the estimated ambient temperature, and in a case where the first time period obtained by the obtainment unit is not longer than the second time period, the temperature estimation unit obtains the estimated ambient temperature based on the first temperature and on a temperature difference between the first temperature and the ambient temperature corresponding to a time difference between the first time period and the second time period.