Communication device and communication method
First Claim
1. A communication device that is provided in a movable body and is wirelessly communicable with a transceiver unit and with another movable body via a predetermined channel, the communication device comprising:
- a receiver configured to receive transceiver unit information including traffic-light information that the transceiver unit has transmitted to the predetermined channel;
a transmitter configured to transmit movable body information on the movable body to the predetermined channel; and
processing circuitry configured to;
extract the traffic-light information corresponding to a running direction of the movable body from the transceiver unit information;
control a transmission timing of the movable body information in such a manner that a transmission control period becomes a preset first time; and
change the transmission control period to a second time that is longer than the first time, when the traffic-light information with respect to the running direction of the movable body indicates a stopping command, and a speed of the movable body is equal to or lower than a preset speed.
1 Assignment
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Accused Products
Abstract
According to an embodiment, a communication device is provided in a movable body and is wirelessly communicable with a transceiver unit and another movable body. A receiver of the device receives transceiver unit information including traffic-light information that the transceiver unit has transmitted to a predetermined channel. An processing circuitry extracts the traffic-light information corresponding to a running direction of the movable body from the transceiver unit information. A transmitter transmits movable body information of the movable body to the predetermined channel. A processing circuitry controls a transmission timing of the movable body information such that a transmission control period becomes a preset first time. A processing circuitry changes the transmission control period to a second time longer than the first time, when the traffic-light information with respect to the running direction indicates a stopping command, and a speed of the movable body is a preset speed or less.
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Citations
16 Claims
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1. A communication device that is provided in a movable body and is wirelessly communicable with a transceiver unit and with another movable body via a predetermined channel, the communication device comprising:
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a receiver configured to receive transceiver unit information including traffic-light information that the transceiver unit has transmitted to the predetermined channel; a transmitter configured to transmit movable body information on the movable body to the predetermined channel; and processing circuitry configured to; extract the traffic-light information corresponding to a running direction of the movable body from the transceiver unit information; control a transmission timing of the movable body information in such a manner that a transmission control period becomes a preset first time; and change the transmission control period to a second time that is longer than the first time, when the traffic-light information with respect to the running direction of the movable body indicates a stopping command, and a speed of the movable body is equal to or lower than a preset speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A communication method executed by a communication device that is provided in a movable body and is wirelessly communicable with a transceiver unit and with another movable body via a predetermined channel, the communication method comprising:
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receiving transceiver unit information including traffic-light information that the transceiver unit has transmitted to the predetermined channel; extracting the traffic-light information corresponding to a running direction of the movable body from the transceiver unit information; transmitting movable body information on the movable body to the predetermined channel; controlling a transmission timing of the movable body information in such a manner that a transmission control period becomes a preset first time; and changing the transmission control period to a second time that is longer than the first time, when the traffic-light information with respect to the running direction of the movable body indicates a stopping command, and a speed of the movable body is equal to or lower than a preset speed. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification