Abstract: A communication system according to the present disclosure includes: a required band calculation unit (12, 41) configured to calculate a required band for a plurality of flows received by a bridge apparatus (3), in which, for a flow including burst data among the plurality of flows, the required band calculation unit (12, 41) calculates the required band for the flow based on a data size of the burst data and an allowable delay of the flow; and a speed ratio calculation unit (32, 43) configured to calculate a relative ratio of communication speeds of the plurality of flows based on the required band for the plurality of flows. The bridge apparatus (3) transfers the plurality of flows to a data receiving apparatus (2) according to the relative ratio of the communication speeds.

Abstract: A communications network system includes a control unit, one or more wireless systems, and application equipment. The control unit acquires information about data that the application equipment communicates via the wireless systems, and acquires information about a wireless environment that has an impact on communications by the wireless systems. The control unit generates a plurality of communications policies that are delivered to the wireless systems, and manages the communications policies that are executed on the wireless systems. The wireless systems store the plurality of communications policies delivered from the control unit, and detect the status of communications, change the communications policies based on the detection result, and control information about data that the application equipment communicates via the wireless systems.

Abstract: A communication system according to the present disclosure includes: a required band calculation unit (12, 41) configured to calculate a required band for a plurality of flows received by a bridge apparatus (3), in which, for a flow including burst data among the plurality of flows, the required band calculation unit (12, 41) calculates the required band for the flow based on a data size of the burst data and an allowable delay of the flow; and a speed ratio calculation unit (32, 43) configured to calculate a relative ratio of communication speeds of the plurality of flows based on the required band for the plurality of flows. The bridge apparatus (3) transfers the plurality of flows to a data receiving apparatus (2) according to the relative ratio of the communication speeds.

Abstract: To provide a wireless communication system that can implement optimal communication conditions depending on the type of data. A wireless communication system 100 for transmitting and receiving data to and from a plurality of terminals 2 for use in a narrow space includes normal transmitting/receiving means for transmitting and receiving normal data, among the data, to and from a terminal 2, based on priorities assigned to each of a plurality of buffers stored in a base station 1, and urgent transmitting/receiving means for assigning a high priority to a buffer storing a lowest amount of data among the plurality of buffers, and transmitting and receiving urgent data, among the data, which is different from the normal data, to and from the terminal, via the buffer to which the high priority is assigned.

Abstract: A wireless apparatus of a wireless system includes a connection rule information table that includes at least a waiting time for channel switching and information prescribing a channel switching order, a length of the waiting time set in accordance with priority level of the wireless system. When switching a channel, the wireless apparatus selects a channel in accordance with the order set in the connection rule information table and controls a wireless connection using the selected channel after an elapse of the waiting time set in the connection rule information table, when performing channel switching.

Abstract: A communications network system includes a control unit, one or more wireless systems, and application equipment. The control unit acquires information about data that the application equipment communicates via the wireless systems, and acquires information about a wireless environment that has an impact on communications by the wireless systems. The control unit generates a plurality of communications policies that are delivered to the wireless systems, and manages the communications policies that are executed on the wireless systems. The wireless systems store the plurality of communications policies delivered from the control unit, and detect the status of communications, change the communications policies based on the detection result, and control information about data that the application equipment communicates via the wireless systems.

Abstract: To provide a wireless communication system that can implement optimal communication conditions depending on the type of data. A wireless communication system 100 for transmitting and receiving data to and from a plurality of terminals 2 for use in a narrow space includes normal transmitting/receiving means for transmitting and receiving normal data, among the data, to and from a terminal 2, based on priorities assigned to each of a plurality of buffers stored in a base station 1, and urgent transmitting/receiving means for assigning a high priority to a buffer storing a lowest amount of data among the plurality of buffers, and transmitting and receiving urgent data, among the data, which is different from the normal data, to and from the terminal, via the buffer to which the high priority is assigned.

Abstract: A wireless communication apparatus is provided with: a first means for determining a noise generation interval on the basis of a noise measuring result; and a second means for determining the size of a data transmission unit that can be transmitted within the noise generation interval, and constructing said data transmission unit of said size.

Abstract: In the present invention, provided is a monitoring device (10) including an operating-state-change information acquisition unit (11) that acquires operating-state-change information indicating a time-series change in operating states of an electrical device, the device being capable of assuming multiple types of operating states, a standard transition pattern storage unit (12) that stores standard transition pattern information indicating a pattern of transition between operating states generated in a normal electrical device, and a monitoring unit (13) that determines whether or not the electrical device is normal using the operating-state-change information and the standard transition pattern information.

Abstract: A wireless communication apparatus is provided with: a first means for determining a noise generation interval on the basis of a noise measuring result; and a second means for determining the size of a data transmission unit that can be transmitted within the noise generation interval, and constructing said data transmission unit of said size.

Abstract: System and methods for performing microgrids cooperation by optimal coalition formation in a distribution network are disclosed. A Microgrid Cooperation Module (MCM) is designed for utility EMS. MCM contains a coalition formation unit and an energy exchange decision unit. Furthermore, a communication protocol for energy exchange between two microgrids is designed. The coalition formation unit applies an innovative hierarchical coalition formation algorithm to provide optimal coalition for real time operation. The real time energy status of microgrids will be provided to coalition formation unit which will determine the coalitions (given a distance threshold) among microgrids to minimize the power loss. Energy exchange decision unit then determine actual energy transfer between pairs of microgrids within a coalition. Upon receiving the energy transfer information through a communication channel, the microgrids will start communicating and process energy transfer.

Abstract: This microgrid system (100) includes: a generator device (111) for outputting power; a plurality of sub-microgrids (110) that include utility customers (112) who consume power; a shared unit (120) connected to the plurality of sub-microgrids (110), and provided with a plurality of energy storage devices (121) for storing power; and a control device (130) that, when power outputted by the generator device (111) is to be stored in the energy storage devices (121), selects an energy storage device (121) as the storage destination for the power outputted by the generator device (111), in accordance with the respective status of the plurality of energy storage devices (121), and when power is to be supplied to utility customers (112), selects an energy storage device (121) as the supply source for supplying power to the utility customers (112), in accordance with the respective status of the plurality of energy storage devices (121).

Abstract: An electric power control system of the present invention is connected to an electric power supplying means for supplying electric power and a load means for accepting supply of electric power and consuming the electric power. The electric power control system includes: a supplied energy acquiring means for acquiring a supplied energy, which is the amount of electric power supplied from the electric power supplying means; a consumed energy acquiring means for acquiring a consumed energy, which is the amount of electric power consumed by the load means; and an electric power supply and demand controlling means for, depending on a total supplied energy as the total of the acquired supplied energy and a total consumed energy as the total of the acquired consumed energy, transmitting and/or receiving electric power to and from another device to change the total supplied energy.

Abstract: A control device is connected to a facility appliance regulating the environment of an area and to an activity measuring instrument for each activity kind measuring the status of an activity of a person in the area. The control device has: an activity kind determination part determining an activity kind corresponding to a work performed in the area; an activity information acquisition part using the activity measuring instrument corresponding to the determined activity kind to acquire the status of the activity of the person in the area; and an environment control part causing the facility appliance to control the environment of the area on the basis of the acquired status of the activity.

Abstract: An electric power control system of the present invention includes an electric power supplying means, a load means, and an energy storing means. The electric power control system includes: an energy storage controlling means for controlling the energy storing means so as to decrease charge or discharge electric power over a response time corresponding to a set time constant for energy storing means; and a supplied energy controlling means for executing control to change electric power supplied by the electric power supplying means over a response time corresponding to a set time constant for electric power supplying means so that the electric power supply and demand difference is kept within the preset given range. The time constant for energy storing means is set to be longer than the time constant for electric power supplying means.

Abstract: System and methods for performing microgrids cooperation by optimal coalition formation in a distribution network are disclosed. A Microgrid Cooperation Module (MCM) is designed for utility EMS. MCM contains a coalition formation unit and an energy exchange decision unit. Furthermore, a communication protocol for energy exchange between two microgrids is designed. The coalition formation unit applies an innovative hierarchical coalition formation algorithm to provide optimal coalition for real time operation. The real time energy status of microgrids will be provided to coalition formation unit which will determine the coalitions (given a distance threshold) among microgrids to minimize the power loss. Energy exchange decision unit then determine actual energy transfer between pairs of microgrids within a coalition. Upon receiving the energy transfer information through a communication channel, the microgrids will start communicating and process energy transfer.

Abstract: A sensor system in which it is possible to identify a sufficient number of sensors even in a situation where the data length of a packet is limited, as well as a sensor and a receiving device in the same, are provided. A sensor repeating a measurement period for performing measurement and a transmission period for performing transmission at predetermined cycles, includes: a measurement section (11) that outputs during the measurement period measurement information based on predetermined measurement; and a transmission section (12) that transmits during the transmission period, by using a single packet or a plurality of packets, source identification information for identifying a source of a packet, the measurement information, and sensor-related information for identifying the sensor and/or a measurement target equipment of this sensor.

Abstract: [Problems to be Solved] It is an object to provide a wireless system and a control method of the wireless system capable of determining whether a beacon transmission function is accepted.

Abstract: A control device is connected to a facility appliance regulating the environment of an area and to an activity measuring instrument for each activity kind measuring the status of an activity of a person in the area. The control device has: an activity kind determination part determining an activity kind corresponding to a work performed in the area; an activity information acquisition part using the activity measuring instrument corresponding to the determined activity kind to acquire the status of the activity of the person in the area; and an environment control part causing the facility appliance to control the environment of the area on the basis of the acquired status of the activity.

Abstract: This microgrid system (100) includes: a generator device (111) for outputting power; a plurality of sub-microgrids (110) that include utility customers (112) who consume power; a shared unit (120) connected to the plurality of sub-microgrids (110), and provided with a plurality of energy storage devices (121) for storing power; and a control device (130) that, when power outputted by the generator device (111) is to be stored in the energy storage devices (121), selects an energy storage device (121) as the storage destination for the power outputted by the generator device (111), in accordance with the respective status of the plurality of energy storage devices (121), and when power is to be supplied to utility customers (112), selects an energy storage device (121) as the supply source for supplying power to the utility customers (112), in accordance with the respective status of the plurality of energy storage devices (121).