Positioning method and system for indoor moving robot
First Claim
1. A positioning system comprising:
- a first transmirror delaying a received signal by a predetermined time interval T1 and transmitting the signal;
a second transmirror delaying the received signal by a time interval T2 and transmitting the signal; and
a moving robot determining its own position based on time intervals between time points of transmitting signals to the first and second transmirrors and time points of receiving the signals from the first and second transmirrors.
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Accused Products
Abstract
A positioning device and method using two transmirrors for positioning a moving robot which moves in an indoor environment is provided. The positioning device includes a transmitter transmitting signals to first and second transmirrors; a receiver receiving signals from the first and second transmirrors; and a positioning unit determining the position of the moving robot based on time intervals between time points when signals are transmitted to the first and second transmirrors and time points when signals are received from the first and second transmirrors. Accordingly, the number of transmirrors can be reduced, and synchronization between the moving robot and the transmirrors is not needed, so that it is possible to easily implement the positioning with lower cost.
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Citations
13 Claims
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1. A positioning system comprising:
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a first transmirror delaying a received signal by a predetermined time interval T1 and transmitting the signal;
a second transmirror delaying the received signal by a time interval T2 and transmitting the signal; and
a moving robot determining its own position based on time intervals between time points of transmitting signals to the first and second transmirrors and time points of receiving the signals from the first and second transmirrors. - View Dependent Claims (2, 3, 4, 5)
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6. A position-detecting moving robot, wherein first and second transmirrors are located along a straight surface of a wall which is aligned with an outmost moving course of the moving robot, the moving robot comprising:
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a transmitter transmitting signals to the first and second transmirrors;
a receiver receiving signals from the first and second transmirrors; and
a positioning unit determining the position of the moving robot based on time intervals between time points when signals are transmitted to the first and second transmirrors and time points when signals are received from the first and second transmirrors. - View Dependent Claims (7, 8, 9)
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10. A positioning method for a moving robot which moves in an indoor environment where first and second transmirrors are provided, the positioning method comprising:
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transmitting signals from the moving robot to the first and second transmirrors;
delaying the signals in the first and second transmirrors by time intervals T1 and T2, and then transmitting the signals to the moving robot; and
determining the position of the moving robot based on time intervals between time points of transmitting the signals to the first and second transmirrors and time points of receiving the signals from the first and second transmirrors. - View Dependent Claims (11, 12, 13)
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Specification