Sensor data collection method and sensor device

A sensor data collection method by a sensor device including a sensor front end configured to output sensor data indicating measured physical amounts;

• a wireless communication circuit configured to communicate with a receiver;
• a memory for storing the sensor data;
• and a micro processing unit (MPU), the method comprising:
• referring to session information managed by the wireless communication circuit and determining whether or not the sensor device is under connection with the receiver;
• stopping storing sensor data output from the sensor front end in real-time in the memory and wirelessly transmitting the sensor data to the receiver when it is determined based on the session information that the sensor device is under connection with the receiver;
• and
• storing the sensor data in the memory when it is determined based on the session information that communication with the receiver is disconnected and that the communication is not disconnected due to disconnection packet reception from the receiver.

A sensor device comprising:

• a sensor front end configured to output sensor data indicating measured physical amounts;
• a wireless communication circuit configured to communicate with a receiver;
• a memory for storing the sensor data;
• and
• a micro processing unit (MPU) configured to:
• refer to session information managed by the wireless communication circuit and determine whether or not the sensor device is under connection with the receiver;
• stop storing the sensor data in the memory and wirelessly transmit the sensor data to the receiver in real-time via the wireless communication circuit when it is determined based on the session information managed by the wireless communication circuit that the sensor device is under connection with the receiver;
• and
• store the sensor data in the memory when it is determined based on the session information that communication with the receiver is disconnected but that the communication is not disconnected due to disconnection packet reception from the receiver.

A sensor data collection method comprising:

• referring, by a sensor device, to session information managed by a wireless communication unit of the sensor device;
• determining, by the sensor device, whether the sensor device is under connection with a receiver based on the session information;
• wirelessly transmitting, by the sensor device, sensor data output from a sensor front end of the sensor device to the receiver in real-time when it is determined that the sensor device is under connection with the receiver;
• storing, by the sensor device, the sensor data in a memory of the sensor device when it is determined that communication with the receiver is disconnected and that the communication is not disconnected due to disconnection packet reception from the receiver;
• and
• stopping, by the sensor device, storing of the sensor data in the memory when wirelessly transmitting the sensor data to the receiver.