Node position measuring system
First Claim
1. A node position measuring system, comprising:
- a node that transmits a positioning signal;
a reference station that transmits a reference signal;
a plurality of base stations that receive the positioning signal and the reference signal;
a server that calculates a position of the node; and
a network that interconnects the base stations and the server, wherein;
the reference station comprises;
a positioning signal reception module that receives the positioning signal; and
a reference signal generation module that transmits the reference signal after the positioning signal reception module receives the positioning signal;
each of the base stations comprises;
a signal reception module that receives the positioning signal and the reference signal;
a reception time measuring module that detects specific patterns from the positioning signal and the reference signal received by the signal reception module to measure a detection time; and
a communication module that transmits time information to the server, the time information being generated from the detection time measured by the reception time measuring module; and
the server comprises a position calculation module that calculates the position of the node based on the time information transmitted from the base station.
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Accused Products
Abstract
A node position measuring system according to this invention includes a node, a reference station, base stations, a server that calculates a position of the node, and a network. The reference station includes a positioning signal reception module and a reference signal generation module that transmits a reference signal after the positioning signal reception module receives the positioning signal. Each of the base stations includes a signal reception module, a reception time measuring module that detects specific patterns from the positioning signal and the reference signal received by the signal reception module to measure a detection time, and a communication module that transmits time information, which is generated from the time measured by the reception time measuring module, to the server. The server includes a position calculation module that calculates the position of the node based on the time information transmitted from the base station.
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Citations
14 Claims
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1. A node position measuring system, comprising:
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a node that transmits a positioning signal;
a reference station that transmits a reference signal;
a plurality of base stations that receive the positioning signal and the reference signal;
a server that calculates a position of the node; and
a network that interconnects the base stations and the server, wherein;
the reference station comprises;
a positioning signal reception module that receives the positioning signal; and
a reference signal generation module that transmits the reference signal after the positioning signal reception module receives the positioning signal;
each of the base stations comprises;
a signal reception module that receives the positioning signal and the reference signal;
a reception time measuring module that detects specific patterns from the positioning signal and the reference signal received by the signal reception module to measure a detection time; and
a communication module that transmits time information to the server, the time information being generated from the detection time measured by the reception time measuring module; and
the server comprises a position calculation module that calculates the position of the node based on the time information transmitted from the base station. - View Dependent Claims (2, 3, 4, 5)
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6. A radio base station for measuring a position of a node that transmits a positioning signal, comprising:
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a signal reception module that receives the positioning signal from the node and a reference signal transmitted from a reference station receiving the positioning signal;
a reception time measuring module that detects specific patterns from the positioning signal and the reference signal received by the signal reception module to measure a detection time; and
a communication module that transmits time information to a position calculation module, the time information being generated from the detection time measured by the reception time measuring module, the position calculation module calculating a position of the node based on the time information. - View Dependent Claims (7, 8, 9, 10)
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11. A position measuring method of measuring a position of a node by using a node position measuring system, the measuring system comprising a node that transmits a positioning signal, a reference station that transmits a reference signal, base stations that receive the positioning signal and the reference signal, a server that calculates the position of the node, and a network that interconnects the base stations and the server,
the position measuring method comprising: -
receiving the positioning signal at the reference station;
transmitting the reference signal from the reference station after the reception of the positioning signal;
receiving the positioning signal and the reference signal at each of the base stations;
detecting specific patterns from the received positioning signal and the reference signal at the base station;
measuring a time of detecting the specific patterns at the base station;
transmitting time information from the base station to the server, the time information being generated from the measured time; and
calculating the position of the node at the server based on the time information transmitted from the base station. - View Dependent Claims (12, 13, 14)
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Specification