Abstract: A master communication device of this communication system comprises: a generation unit that generates transmission data consisting of consecutive data to all slave communication devices following one header; and a transmission unit that transmits the transmission data generated by the generation unit at the fastest cycle, among communication cycles requested by the plurality of slave communication devices. Each of the plurality of slave communication devices of the communication system comprises: a storage unit that adds information indicating reliability to data received from the master communication device and stores the same; a comparison unit that compares the reliability of subsequently received data and the reliability of the data stored in the storage unit; and a selection unit that selects the data stored in the storage unit if the reliability of the data stored in the storage unit is higher than the reliability of the data subsequently received by the comparison unit.

Abstract: This invention enables data communication that effectively utilizes data received normally or in a correctable manner at a timing which differs from the timing at which each slave communication terminal should receive data. A master communication device of this communication system comprises: a generation unit that generates transmission data consisting of consecutive data to all slave communication devices following one header; and a transmission unit that transmits the transmission data generated by the generation unit at the fastest cycle, among communication cycles requested by the plurality of slave communication devices.

Abstract: To provide a filter circuit, a communication circuit including a filter circuit, and a numerical control including a filter circuit, which improve transmission efficiency of partial write performed in a communication circuit made using an all-purpose serial communication protocol. A partial-write enable filter circuit includes: a data input unit that accepts input data; a determination unit that determines whether partial write of input data is valid; an enable information acquisition unit that acquires partial-write enable information; a storage unit that stores partial-write enable information; a computation unit that computes valid data in the input data; and a data output unit that outputs the valid data computed by the computation unit.

Abstract: Provided is a production control system of a factory including: a plurality of machines; an air conditioner; a power computation unit for monitoring power consumption of an entire factory; a temperature information generation unit for generating information on temperature inside the factory; wherein running status and processing condition of the machines and running status of the air conditioner are controlled to produce the products dictated by the production plan by a delivery deadline; and a machine learning unit that learns a relationship of operational status including the running status and the processing condition of the machines and the running status of the air conditioner to environmental status including production completion time according to the operational status, the temperature inside the factory, and the power consumption of the factory, and outputs operational status that brings the environmental status to a desired condition in accordance with the production plan.

Abstract: To provide a filter circuit, a communication circuit including a filter circuit, and a numerical control including a filter circuit, which improve transmission efficiency of partial write performed in a communication circuit made using an all-purpose serial communication protocol. A partial-write enable filter circuit includes: a data input unit that accepts input data; a determination unit that determines whether partial write of input data is valid; an enable information acquisition unit that acquires partial-write enable information; a storage unit that stores partial-write enable information; a computation unit that computes valid data in the input data; and a data output unit that outputs the valid data computed by the computation unit.

Abstract: Provided is a production control system of a factory including: a plurality of machines; an air conditioner; a power computation unit for monitoring power consumption of an entire factory; a temperature information generation unit for generating information on temperature inside the factory; wherein running status and processing condition of the machines and running status of the air conditioner are controlled to produce the products dictated by the production plan by a delivery deadline; and a machine learning unit that learns a relationship of operational status including the running status and the processing condition of the machines and the running status of the air conditioner to environmental status including production completion time according to the operational status, the temperature inside the factory, and the power consumption of the factory, and outputs operational status that brings the environmental status to a desired condition in accordance with the production plan.