Abstract: Provided are an electronic apparatus and a sensor ball registration method of the electronic apparatus. The electronic apparatus according to examples of the present disclosure comprises: a communication circuit; a display; an actuator; a speaker; and a controller electrically connected to the communication circuit, the display, the actuator, and the speaker.

Abstract: A sensor module may be mounted in an electronic device including a rotating body rotatably arranged inside a housing. The sensor module may include a stator fixed in the housing; an energy harvester including a rotor mounted in the rotating body, at a position to at least partially face the stator; and a sensor arranged inside the rotating body together with the rotor, wherein, as the rotating body rotates, the rotor may be configured to rotate about the stator and generate an induced current and supply same to the sensor. The sensor may be configured to detect, using power based on the induced current, environmental information of the inside of the rotating body or operating state information of the rotating body.

Abstract: According to various embodiments, a sensor device may comprise: an energy harvester configured to generate electrical energy; an energy storage circuit configured to store the generated electrical energy; a monitoring circuit; a sensor; a communication circuit; and at least one processor, wherein the at least one processor is configured to identify a voltage of the energy storage circuit through the monitoring circuit, operate in a first mode in response to identification that the voltage is equal to or lower than a threshold value, operate in a second mode which consumes more power than the first mode, in response to identification that the voltage exceeds the threshold value, acquire a sensing value through the sensor according to a sensing scheme corresponding to one of the first mode and the second mode, and control the communication circuit to transmit the voltage and the sensing value to another electronic device according to the communication scheme corresponding to one of the first mode and the second

Abstract: Methods and electronic devices for estimating state of charge (SOC) of a battery pack. Various embodiments provide a model comprising an (electrical) equivalent circuit model, an electrochemical (thermal) model, and a (convective) thermal model. The model estimates parameters pertaining to each cell of the battery pack individually, and determines the variations in the values of the parameters among each of the cells of the battery pack. The parameters include capacity, temperature current, voltage, and SOC. The parameters are computed based on at current drawn by the battery pack, electrochemical parameters, thermal parameters, and cell internal and connection resistances of the individual cells. Various embodiments compute battery pack uptime, chargeable capacity of the battery pack and SOC of the battery pack, based on the values of the parameters.

Abstract: Methods and electronic devices for estimating state of charge (SOC) of a battery pack. Various embodiments provide a model comprising an (electrical) equivalent circuit model, an electrochemical (thermal) model, and a (convective) thermal model. The model estimates parameters pertaining to each cell of the battery pack individually, and determines the variations in the values of the parameters among each of the cells of the battery pack. The parameters include capacity, temperature current, voltage, and SOC. The parameters are computed based on at current drawn by the battery pack, electrochemical parameters, thermal parameters, and cell internal and connection resistances of the individual cells. Various embodiments compute battery pack uptime, chargeable capacity of the battery pack and SOC of the battery pack, based on the values of the parameters.