Data transmission terminal, data transmission method, and recording medium

A data transmission terminal, comprising:

• a first sensor;
• a memory;
• a communicator;
• and
• a processor,
• wherein the processor is configured to transmit first sensor data output from the first sensor to an external terminal by using the communicator,
• the processor is configured to determine a state of communication between the communicator and the external terminal,
• the processor is configured to store multiple pieces of the first sensor data on the memory in a time-series manner when the processor determines that the state of the communication has shifted from a normal state to a disconnected state,
• the processor is configured to generate processed data by processing the first sensor data output from the first sensor or the first sensor data stored on the memory,
• the processor is configured to determine whether a change greater than or equal to a predetermined amount has occurred between values represented by the multiple pieces of the first sensor data stored on the memory when the processor determines that the state of the communication has shifted from the disconnected state to the normal state,
• the processor is configured to classify the multiple pieces of the first sensor data stored on the memory as changed data and unchanged data when the processor determines that the change has occurred, the changed data being output from the first sensor in a period in which the change occurs, the unchanged data being output from the first sensor in a period different from the period in which the change occurs,
• the processor is configured to transmit the processed data to the external terminal by using the communicator, and
• the processor is configured to transmit the unchanged data to the external terminal by using the communicator after the processed data are transmitted to the external terminal.

A data transmission terminal, comprising:

• a first sensor;
• a memory;
• a communicator;
• and
• a processor,
• wherein the processor is configured to transmit first sensor data output from the first sensor to an external terminal by using the communicator,
• the processor is configured to determine a state of communication between the communicator and the external terminal,
• the processor is configured to store multiple pieces of the first sensor data on the memory in a time-series manner when the processor determines that the state of the communication has shifted from a normal state to a disconnected state,
• the processor is configured to determine whether a change greater than or equal to a predetermined amount has occurred between values represented by the multiple pieces of the first sensor data stored on the memory when the processor determines that the state of the communication has shifted from the disconnected state to the normal state,
• the processor is configured to classify the multiple pieces of the first sensor data stored on the memory as changed data and unchanged data when the processor determines that the change has occurred, the changed data being output from the first sensor in a period in which the change occurs, the unchanged data being output from the first sensor in a period different from the period in which the change occurs,
• the processor is configured to generate processed data by processing the changed data,
• the processor is configured to transmit the processed data to the external terminal by using the communicator, and
• the processor is configured to transmit the unchanged data to the external terminal by using the communicator after the processed data are transmitted to the external terminal.

A data transmission method of a data transmission terminal including a first sensor, a memory, a communicator, and a processor, the method comprising:

• transmitting, by the processor, first sensor data output from the first sensor to an external terminal by using the communicator;
• determining, by the processor, a state of communication between the communicator and the external terminal,
• storing, by the processor, multiple pieces of the first sensor data on the memory in a time-series manner when the processor determines that the state of the communication has shifted from a normal state to a disconnected state,
• determining, by the processor, whether a change greater than or equal to a predetermined amount has occurred between values represented by the multiple pieces of the first sensor data stored on the memory when the processor determines that the state of the communication has shifted from the disconnected state to the normal state,
• classifying, by the processor, the multiple pieces of the first sensor data stored on the memory as changed data and unchanged data when the processor determines that the change has occurred, the changed data being output from the first sensor in a period in which the change occurs, the unchanged data being output from the first sensor in a period different from the period in which the change occurs,
• transmitting, by the processor, the changed data to the external terminal by using the communicator, and
• transmitting, by the processor, the unchanged data to the external terminal by using the communicator after the changed data are transmitted to the external terminal.

A non-transitory computer-readable recording medium saving a program for causing a processor of a data transmission terminal including a first sensor, a memory, a communicator, and the processor configured to execute:

• transmitting first sensor data output from the first sensor to an external terminal by using the communicator;
• determining a state of communication between the communicator and the external terminal,
• storing multiple pieces of the first sensor data on the memory in a time-series manner when the processor determines that the state of the communication has shifted from a normal state to a disconnected state,
• determining whether a change greater than or equal to a predetermined amount has occurred between values represented by the multiple pieces of the first sensor data stored on the memory when the processor determines that the state of the communication has shifted from the disconnected state to the normal state,
• classifying the multiple pieces of the first sensor data stored on the memory as changed data and unchanged data when the processor determines that the change has occurred, the changed data being output from the first sensor in a period in which the change occurs, the unchanged data being output from the first sensor in a period different from the period in which the change occurs,
• transmitting the changed data to the external terminal by using the communicator, and
• transmitting the unchanged data to the external terminal by using the communicator after the changed data are transmitted to the external terminal.