POSITIONING SYSTEM, POSITIONING METHOD, AND POSITIONING STATION

    公开(公告)号:US20180239029A1

    公开(公告)日:2018-08-23

    申请号:US15524454

    申请日:2016-01-26

    CPC classification number: G01S19/44

    Abstract: The present disclosure is effective in easily estimating an integer value bias at a high speed. A processor of a positioning system, a positioning method, and a positioning station performs interference positioning through calculation processing based on positioning data of the base station and positioning data of the positioning station. A plurality of calculation processing items are performed in parallel with different time points as start time points. Thus, even in a case where a situation in which the time required for the calculation of a fix solution differs depending on time point at which time point the calculation processing starts, there is a possibility that one of a plurality of calculation processing items can calculate the fix solution at an earlier time than in a case where single calculation processing performs the calculation. Therefore, it is possible to easily estimate the integer value bias at the high speed.

    POSITIONING SYSTEM, BASE STATION, AND POSITIONING METHOD

    公开(公告)号:US20190313215A1

    公开(公告)日:2019-10-10

    申请号:US16470830

    申请日:2017-11-06

    Abstract: A positioning system includes a receiver that receives a positioning signal from a positioning satellite and generates carrier phase information, a base station that receives the carrier phase information from the receiver, and a communication terminal that performs wireless communication with the base station. The base station transmits information including the carrier phase information and the position information of the receiver as a carrier positioning signal to the communication terminal and the communication terminal performs carrier positioning using the carrier positioning signal transmitted by the base station. Here, the base station encrypts the position information of the receiver, in the carrier positioning signal to be transmitted.

    WIRELESS CONTROL DEVICE, AND WIRELESS CONTROL SYSTEM

    公开(公告)号:US20220201424A1

    公开(公告)日:2022-06-23

    申请号:US17603635

    申请日:2020-04-15

    Abstract: A wireless control device is provided with: a first wireless control unit that acquires first information including information indicating first positions of persons by using a first wireless method; a second wireless control unit that connects to wireless devices by using a second wireless method, and acquires second information that includes device identification information for identifying the wireless devices and information indicating second positions of the wireless devices; and an information control unit that selects the first position within a prescribed range from each second position, and specifies person identification information linked with the device identification information of the second position as the person identification information of a person present at the selected first position.

    COMMUNICATION SYSTEM, TRANSMITTER, RECEIVER, COMMUNICATION METHOD, TRANSMISSION METHOD, AND RECEPTION METHOD

    公开(公告)号:US20180351853A1

    公开(公告)日:2018-12-06

    申请号:US15761632

    申请日:2016-09-05

    Abstract: In order to ensure security even when packet communication is performed using a plurality of communication paths of a public network, the communication system (1) has a configuration wherein: the transmitter (2) includes a first storage unit (11) that stores a first communication pattern, first and second communication units (12, 13) that perform packet communication with a receiver (3), and a first processor (16) that controls communication units (12, 13); and the receiver (3) includes a second storage unit (21) that stores a second communication pattern, third and fourth communication units (22, 23) that perform the packet communication with the transmitter (2), and a second processor (26) that controls communication units (22, 23), whereby processor (16) transmits packets from communication units as selected in accordance with the first communication pattern and inserts dummy packets into at least one of the groups of packets to be transmitted, and the second processor (26) restores original data from valid packets, that is, the remaining packets after the dummy packets are removed from the received packets in accordance with the second communication pattern.

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