Mitsubishi Electric Corporation

Takamitsu Yamada

Takayoshi Tonomura

Keisuke Uemura

Tomoyuki Hayashi

Kazuaki Matoba

Yunqing Fan

Tomoaki Gyoda

A communication system includes a cloud server, and a communication control apparatus to be connected to the cloud server and a device through a wide area network and a local area network. The communication control apparatus transmits a device message generated by the device to the cloud server. The communication control apparatus includes a message acquirer that acquires the device message from the device, a determiner that determines whether the device message satisfies a non-transmission condition, and a transmission controller that controls transmission of the device message to the cloud server. The transmission controller discards the device message to avoid transmission of the device message to the cloud server when the device message is determined to satisfy the non-transmission condition.

Communication system, communication control apparatus, communication control method, and recording medium

A cloud server includes an equipment information storage that stores equipment table information; an equipment controller that generates control information; an encapsulator that generates control notification information by encapsulating the control information and adding header information for specifying a control device as a sending destination; and a notification information sender that sends the control notification information to the control device based on the header information. Upon acquiring the control notification information from the server, the control device removes the header information from the control notification information and decapsulates to extract the control information, and sends the extracted control information to a controlled equipment.

Control system, server, terminal device, control device, communication control method, and recording medium

A control apparatus includes a RAM, a non-volatile storage device, and a computing device. The RAM stores an object file including an unresolved symbol. The non-volatile storage device stores a control program that can be updated. The computing device controls reception of the object file, generates a symbol-resolved object file by resolving the unresolved symbol, and updates the control program by using the symbol-resolved object file. The non-volatile storage device stores a symbol table in which only a function and a global variable that are accessed by the computing device executing a program described in the object file and that are allowed to be referred to during a process of updating the control program are defined. The computing device resolves the unresolved symbol by using the symbol table.

Growing community of inventors

Tokyo, Japan

Takamitsu Yamada