摘要:
A drive assistance device includes: a collection unit that collects, from a sensor, own-vehicle-state-information representing a state related to a movement of an own vehicle and a position of the own vehicle; a communication unit that transmits the own-vehicle-state-information to another vehicle, and also receiving another-vehicle-state-information representing a state related to a movement of the another vehicle and a position of the another vehicle, from the another vehicle; a determination unit that determines whether a problem occurs in relation to the another vehicle, based on the another-vehicle-state-information being received; and a generation unit that generates, when the determination unit determines that the problem occurs in relation to the another vehicle, improvement operation information representing an operation of the own vehicle capable of improving the problem related to the another vehicle, based on the own-vehicle-state-information and the another-vehicle-state-information.
摘要:
Provided is an article position management apparatus that a receiver receives image data from a camera apparatus and that identifies a position of an article, based on an article marker attached to an article and a reference point marker whose coordinate information in an absolute coordinate system in a field is set in advance, the article marker and the reference point marker being included in the image data, when the camera apparatus is a mobile camera apparatus, and identifies the position of the article, based on the article marker included in the image, when the camera apparatus is a fixed camera apparatus.
摘要:
An in-vehicle control apparatus controls a plurality of repeaters included in an in-vehicle network assembled in a vehicle, based on a control scenario(s) associated with states of the vehicle and control contents, each of which is set in a corresponding one of the plurality of repeaters.
摘要:
When a terminal device initiates a wireless communication when it has not established a wireless link between itself and another wireless device, it transmits, as a management frames in active scanning, a plurality of activation probe requests having frame lengths representing an identifier of a wireless base station to which connection is being made and which is intended to transition from sleep mode to operating mode. Then, the wireless base station receives the plurality of activation probe requests transmitted by the terminal device as management frames in active scanning in a wireless LAN, and, when a plurality of dummy network identifiers detected based on the received plurality of activation probe requests represent the identifier of its own, transitions from sleep mode to operating mode.
摘要:
A transmitter generates a header frame having a frame length indicating the beginning of data to be transmitted, data frames having frame lengths representing the data to be transmitted, and an end frame having a frame length indicating the end of the data to be transmitted. Then, for all of the header frame, data frames and end frame, the transmitter executes transmitting the kth frame when the wireless communication space is available, thereby transmitting the header frame, data frames and end frame, one after another, in accordance with the CSMA/CA scheme.
摘要:
A wireless communication device includes a data transmission and reception section that wirelessly transmits a plurality of test packets; a signal sensing section that senses a power of a spatial radio wave signal on a frequency channel that is the same as the plurality of test packets and outputs sample data of the sensed spatial radio wave signal; a calculation processing section that converts the sample data into time series sample data; a collision detection section that calculates a packet collision rate based on the number of packet collisions and the number of the plurality of test packets if there is a packet collision due to interference of the plurality of test packets with another communication; and a control section that adjusts a parameter that the data transmission and reception section uses based on a calculation result of the collision detection section.
摘要:
Article position estimation system comprises: article movement recognition part; reference point recognition part; position information generation part; and article position estimation part. Article movement recognition part generates article movement information including time point when article is taken out by mobile body or time point when article placement is completed by mobile body. Reference point recognition part recognizes reference point and generates reference point recognition information including identification information according to recognized reference point, reference point recognition time point, and information related to recognized reference point. Position information generation part generates information related to position of mobile body at reference point recognition time point based on reference point recognition information. Article position estimation part estimates position of mobile body at the time when article is moved by using at least position of mobile body at reference point recognition time point.
摘要:
A transmitter generates a header frame having a frame length indicating the beginning of data to be transmitted, data frames having frame lengths representing the data to be transmitted, and an end frame having a frame length indicating the end of the data to be transmitted. Then, for all of the header frame, data frames and end frame, the transmitter executes transmitting the kth frame when the wireless communication space is available, thereby transmitting the header frame, data frames and end frame, one after another, in accordance with the CSMA/CA scheme.