POSITIONING DEVICE, COMMUNICATION DEVICE, AND POSITIONING SYSTEM
First Claim
1. A positioning device comprising:
- a communication control unit that controls a communication unit that communicates with a communication device, the communication device transmitting a radio signal including identification information; and
a distance measurement control unit that controls a distance measurement unit that carries out measurement of a distance to the communication device,wherein,in a case where the identification information included in the radio signal received by the communication unit is the identification information about a current search target, and a reception intensity of the radio signal exceeds a predetermined value,the communication control unit causes the communication unit to transmit a distance measurement start instruction to the communication device, andthe distance measurement control unit causes the distance measurement unit to carry out measurement of the distance to the communication device.
1 Assignment
0 Petitions
Accused Products
Abstract
The present technology relates to a positioning device, a communication device, and a positioning system that are designed to consume lower amounts of power in a more reliable manner. In a case where the identification information included in a received radio signal is the identification information about the current search target, and the reception intensity of the radio signal exceeds a predetermined value, the positioning device transmits a distance measurement start instruction to the communication device, and carries out measurement of the distance to the communication device. Upon receiving the distance measurement start instruction from the positioning device, the communication device performs measurement of the distance to the positioning device. The present technology can be applied to a positioning system.
2 Citations
19 Claims
-
1. A positioning device comprising:
-
a communication control unit that controls a communication unit that communicates with a communication device, the communication device transmitting a radio signal including identification information; and a distance measurement control unit that controls a distance measurement unit that carries out measurement of a distance to the communication device, wherein, in a case where the identification information included in the radio signal received by the communication unit is the identification information about a current search target, and a reception intensity of the radio signal exceeds a predetermined value, the communication control unit causes the communication unit to transmit a distance measurement start instruction to the communication device, and the distance measurement control unit causes the distance measurement unit to carry out measurement of the distance to the communication device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A communication device comprising:
-
a communication control unit that controls a communication unit that transmits a radio signal to a positioning device, the radio signal including identification information; and a distance measurement control unit that controls a distance measurement unit that carries out measurement of a distance to the positioning device, wherein, in a case where the communication control unit has determined that the communication unit has received a distance measurement start instruction from the positioning device, the distance measurement control unit causes the distance measurement unit to carry out measurement of the distance to the positioning device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
-
19. A positioning system comprising:
-
a positioning device including; a first communication control unit that controls a first communication unit that communicates with a communication device, the communication device transmitting a radio signal including identification information; and a first distance measurement control unit that controls a first distance measurement unit that carries out measurement of a distance to the communication device; and a communication device including; a second communication control unit that controls a second communication unit that transmits a radio signal to the positioning device, the radio signal including the identification information; and a second distance measurement control unit that controls a second distance measurement unit that carries out measurement of a distance to the positioning device, wherein, in a case where the identification information included in the radio signal received by the first communication unit is the identification information about a current search target, and a reception intensity of the radio signal exceeds a predetermined value, the first communication control unit causes the first communication unit to transmit a distance measurement start instruction to the communication device, and the first distance measurement control unit causes the first distance measurement unit to carry out measurement of the distance to the communication device, and in a case where the second communication control unit has determined that the second communication unit has received a distance measurement start instruction from the positioning device, the second distance measurement control unit causes the second distance measurement unit to carry out measurement of the distance to the positioning device.
-
Specification