Communication device, control method of communication device, external device, control method of external device, and control system
AssigneeOMRON Corporation
InventorsYoshimitsu Nakano, Hidekatsu Nogami, Yahiro Koezuka, Arata Kataoka
Life of this patent
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Abstract
The disclosure is provided to transmit a sensor value from a sensor to an external device with high efficiency. A sensor value of a sensor is acquired, basic data as time-series data is generated with reference to the acquired sensor value, differential data indicating a difference between the basic data and measurement data as time-series data corresponding to the sensor value acquired from the sensor is generated, and the differential data is transmitted to an external device through wireless communication.
Claims18
A communication device that transmits a sensor value of a sensor, which is configured to measure a predetermined physical quantity when a measurement target machine operates, to an external device external to the communication device through wireless communication, the communication device comprising a processor configured to:
- acquire the sensor value;
- generate basic data as time-series data with reference to the acquired sensor value;
- generate differential data indicating a difference between the basic data and measurement data as time-series data corresponding to the sensor value acquired from the sensor;
- transmit the differential data to the external device through wireless communication;
- and
- determine a type of an operation of the measurement target machine with reference to the measurement data,
- wherein the processor generates the basic data for each of a plurality of types of operations of the measurement target machine, and the processor generates the differential data using the basic data corresponding to the type of the operation,
- wherein the processor transmits the differential data with a bit length to the external device to control the target machine by the external device, wherein the bit length of the differential data is variable and is determined based on an amount of data of the differential data.
A control method of a communication device that transmits a sensor value of a sensor configured to measure a predetermined physical quantity when a measurement target machine operates to an external device external to the communication device through wireless communication, the control method comprising:
- a learning phase in which the sensor value is acquired and basic data as time-series data is generated by learning and referring to the sensor value, and the basic data is transmitted to the external device through wireless communication;
- and
- an operation phase in which differential data indicating a difference between the basic data and measurement data as time-series data corresponding to the sensor value acquired when the measurement target machine operates from the sensor is generated, and the differential data is transmitted to the external device through wireless communication,
- wherein a type of an operation of the measurement target machine is determined with reference to the measurement data, the basic data are generated for each of a plurality of types of operations of the measurement target machine, and the differential data are generated using the basic data corresponding to the type of the operation,
- wherein the differential data with a bit length to the external device is transmitted to the external device to control the target machine by the external device, wherein the bit length of the differential data is variable and is determined based on an amount of data of the differential data.
Dependencies are inferred from the claim text.