Abstract: A communication system according to an embodiment includes a server system and one or more communication apparatuses. The server system includes a first hardware processor. The first hardware processor determines frequency information indicating processing frequency of predetermined processing executed by the communication apparatuses. The frequency information is determined on the basis of determination information affecting the predetermined processing. The first hardware processor transmits processing frequency of the predetermined processing to the communication apparatuses. The processing frequency is determined on the basis of the frequency information. The communication apparatuses each include a second hardware processor. The second hardware processor receives the processing frequency of the processing from the server system. The second hardware processor executes the predetermined processing on the basis of the received processing frequency.

Abstract: A vehicle control apparatus is to be applied to a vehicle including a torque converter and an engine. The vehicle control apparatus includes a turbine hub, a lock-up piston, a damper mechanism, and a control system. The damper mechanism permits relative rotation between a hub of the turbine hub and a cylindrical part of the lock-up piston. The control system controls the engine. The control system calculates, with the lock-up piston engaged with a crankshaft of the engine, a PV value that is a product of a sliding surface pressure and a sliding speed between the hub and the cylindrical part. When the PV value is greater than a threshold, the control system changes an engine torque more gradually than when the PV value is equal to or less than the threshold. The engine torque is an output torque of the crankshaft.

Abstract: A sensor includes a handhole part and a sensor module. The handhole part includes an inner wall and a holder. The holder is located at the inner wall. The sensor module is provided in the handhole part. The sensor module includes a held part held by the holder, a housing connected with the held part, a sensor circuit provided in the housing and including a gas sensor element, and a battery configured to supply electrical power to the sensor circuit. A gap is between the inner wall and the housing and between the housing and a first member under the housing.

Abstract: According to one embodiment, a communication device includes one or more processors. The one or more processors are configured to: determine a timing of time-division multiplexing data communication and a radio frequency to be used for the data communication based on a predetermined determination rule common to a plurality of communication devices included in a time-division multiplexing communication system, the predetermined determination rule using a number of hops from a specific communication device of the plurality of communication devices; and control wireless communication to be performed at the determined frequency at the determined timing.

Abstract: According to one embodiment, a control device includes one or more hardware processors. The one or more hardware processors are configured to: estimate occurrence of a disaster by using risk information indicating a risk of the disaster; confirm necessity of control of an electronic device from a server when the occurrence of the disaster is estimated; determine the necessity of the control according to the estimated disaster when a response is not transmitted from the server with respect to the confirmation of the necessity of control; and transmit an instruction of the control to the electronic device when it is determined that control is necessary or when a response indicating that control is necessary is transmitted from the server.

Abstract: A communication device includes one or more processors. The processors acquire, from at least one electronic device, output data output from the electronic device and current time information managed by the electronic device. The processors communicate with a server device using a communication technique in which numbers indicating communication timings are synchronized, and transmits the output data to the server device. The processors calculate corrected time information by correcting the current time information on the basis of a reference number indicating a number serving as a reference. The processors set the calculated corrected time information in the electronic device.

Abstract: According to one embodiment, a sensor includes a handhole part, a sensor module, and a holder. The handhole part includes an inner wall. The sensor module is provided in the handhole part. The sensor module includes a housing, a sensor circuit provided in the housing, the sensor circuit including a gas sensor element, and a battery configured to supply electrical power to the sensor circuit. The holder holds the sensor module so that a gap is formed between the inner wall and the housing and between the housing and a first member under the housing.

Abstract: A wireless communication device according to an embodiment is a wireless communication device included in a multi-hop network in which data is relayed in multiple stages in time division communication. A decision unit decides an additional slot, based on identification information received from a child node that transmits data to the wireless communication device. A communication processing unit transmits and receives data using the additional slot and a basic slot assigned based on frame information in the time division communication.

Abstract: An information processing device according to one embodiment includes a hardware processor. The hardware processor functions to receive, from each of communication devices, communication data including sensor data and time information. The sensor data indicates a result of measurement by a sensor of each communication device. The time information indicates a measurement time of the sensor data. The hardware processor functions to specify, as event communication data, the communication data including event sensor data being the sensor data of an event simultaneously occurring in the network. The hardware processor functions to calculate a time delay amount among the communication devices on the basis of the event sensor data and the time information, each being included in the event communication data of each communication device. The hardware processor functions to correct the time information included in the communication data on the basis of the delay amount.

Abstract: A communication device according to one embodiment includes one or more hardware processors. The processors serve to acquire, from at least one electronic device, output data output from the electronic device. The processors serve to communicate with a server device by a communication technique in which numbers indicating communication timings are synchronized. The processors also serve to transmit, to the server device as a destination, the output data in association with a first number out of the numbers. The first number indicates a timing at which the output data is acquired.

Abstract: A communication system according to an embodiment includes a server system and one or more communication apparatuses. The server system includes a first hardware processor. The first hardware processor determines frequency information indicating processing frequency of predetermined processing executed by the communication apparatuses. The frequency information is determined on the basis of determination information affecting the predetermined processing. The first hardware processor transmits processing frequency of the predetermined processing to the communication apparatuses. The processing frequency is determined on the basis of the frequency information. The communication apparatuses each include a second hardware processor. The second hardware processor receives the processing frequency of the processing from the server system. The second hardware processor executes the predetermined processing on the basis of the received processing frequency.

Abstract: A communication device according to an embodiment includes one or more hardware processors. The one or more hardware processors: receives, from a server device performing communication by a communication method of synchronizing a number indicating a communication timing, a reference number indicating the number serving as a reference; and determines a processing timing of predetermined processing, based on the reference number.

Abstract: A wireless communication device according to an embodiment is a wireless communication device included in a multi-hop network in which data is relayed in multiple stages in time division communication. A decision unit decides an additional slot, based on identification information received from a child node that transmits data to the wireless communication device. A communication processing unit transmits and receives data using the additional slot and a basic slot assigned based on frame information in the time division communication.

Abstract: According to an embodiment, a wireless communication device includes a memory and one or more hardware processors coupled to the memory. The one or more hardware processors are configured to function as a communication control unit and a determination unit. The communication control unit transmits and receives data to and from a first wireless communication device. The determination unit calculates transmission and reception information based on a transmission and reception result of the data, and variation of received signal intensity of the data, and determines whether to maintain connection to the first wireless device based on the transmission and reception information and the variation. The communication control unit controls communication according to a determination result of the determination unit.

Abstract: A communication device according to an embodiment includes one or more hardware processors. The one or more hardware processors: receives, from a server device performing communication by a communication method of synchronizing a number indicating a communication timing, a reference number indicating the number serving as a reference; and determines a processing timing of predetermined processing, based on the reference number.

Abstract: According to one embodiment, a sensor includes a handhole part, a sensor module, and a holder. The handhole part includes an inner wall. The sensor module is provided in the handhole part. The sensor module includes a housing, a sensor circuit provided in the housing, the sensor circuit including a gas sensor element, and a battery configured to supply electrical power to the sensor circuit. The holder holds the sensor module so that a gap is formed between the inner wall and the housing and between the housing and a first member under the housing.

Abstract: According to one embodiment, a sensor includes a handhole part, and a sensor module. The handhole part includes an inner wall and a holder. The holder is located at the inner wall. The sensor module is provided in the handhole part. The sensor module includes a held part held by the holder, a housing connected with the held part, a sensor circuit provided in the housing and including a gas sensor element, and a battery configured to supply electrical power to the sensor circuit. A gap is between the inner wall and the housing and between the housing and a first member under the housing.

Abstract: A wireless communication device includes a memory and a wireless interface and processing circuitry. The memory configured to store data to be transmitted and received. The wireless interface configured to transmit and receive a wireless signal. The processing circuitry coupled to the memory and configured to receive a message from another wireless device, including destination information and acknowledgement information, via the wireless interface, set, in a first period being a period in which the message from a child node which transmits the message upward while setting the child node itself as a destination is received, the acknowledgement information with respect to data received from the child node, process the message including the destination information and the acknowledgement information, and transmit a message including the set acknowledgement information via the wireless interface to another wireless device.

Abstract: An image pickup apparatus includes an image pickup device, a display device including, in a finder loupe visual field, an image display region and an image display outside region, and a display controller configured to control the display device. The display controller determines a difficulty degree of visibility of a boundary between the image display region and the image display outside region and controls the display device to draw a boundary display when the difficulty degree is equal to or larger than a predetermined value and not to draw the boundary display when the difficulty degree is smaller than the predetermined value.

Abstract: An image pickup apparatus includes an image pickup device, a display device including, in a finder loupe visual field, an image display region and an image display outside region, and a display controller configured to control the display device. The display controller determines a difficulty degree of visibility of a boundary between the image display region and the image display outside region and controls the display device to draw a boundary display when the difficulty degree is equal to or larger than a predetermined value and not to draw the boundary display when the difficulty degree is smaller than the predetermined value.