Communication device, communication system and associated communication method
First Claim
1. A communication method, applied between a first communication device and a second communication device, comprising:
- transmitting at least one first movement parameter, wherein a first moving device is equipped with the first communication device and the first communication device detects a movement of the first moving device at a first time point to obtain the at least one first movement parameter;
receiving and storing the at least one first movement parameter by the second communication device of a second moving device;
transmitting at least one second movement parameter to the second communication device selectively according to whether or not, a difference between an estimated internal movement parameter and the at least one second movement parameter is greater than a predefined threshold wherein the first communication device estimates a position of the first moving device at a second time point based on at least one estimating function and the at least one first movement parameter and accordingly obtains the estimated internal movement parameter, detects the movement of the first moving device at the second time point to obtain the at least one second movement parameter, and the second time point is later than the first time point; and
obtaining the movement of the first moving device according to either the at least one second movement parameter or an estimated external movement parameter by the second communication device, wherein the second communication device estimates the position of the first moving device at the second time point based on the at least one estimating function and the at least one first movement parameter and accordingly obtains the estimated external movement parameter.
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Abstract
A communication device, a communication and associated communication method are provided. The communication device is placed at a first moving device and the communication device includes a movement detection module, a transmitter, and a controller. The movement detecting module detects movement of the first moving device to obtain at least one first movement parameter at a first time point, and detects the movement of the first moving device to obtain at least one second movement parameter at a second time point latter than the first time point. The transmitter transmits the at least one first movement parameter. By estimating position of the first moving device at the second time point, the controller obtains an estimated internal movement parameter. The controller controls the transmitter to transmit the at least one second movement parameter selectively according to the estimated internal movement parameter and the at least one second movement parameter.
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Citations
19 Claims
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1. A communication method, applied between a first communication device and a second communication device, comprising:
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transmitting at least one first movement parameter, wherein a first moving device is equipped with the first communication device and the first communication device detects a movement of the first moving device at a first time point to obtain the at least one first movement parameter; receiving and storing the at least one first movement parameter by the second communication device of a second moving device; transmitting at least one second movement parameter to the second communication device selectively according to whether or not, a difference between an estimated internal movement parameter and the at least one second movement parameter is greater than a predefined threshold wherein the first communication device estimates a position of the first moving device at a second time point based on at least one estimating function and the at least one first movement parameter and accordingly obtains the estimated internal movement parameter, detects the movement of the first moving device at the second time point to obtain the at least one second movement parameter, and the second time point is later than the first time point; and obtaining the movement of the first moving device according to either the at least one second movement parameter or an estimated external movement parameter by the second communication device, wherein the second communication device estimates the position of the first moving device at the second time point based on the at least one estimating function and the at least one first movement parameter and accordingly obtains the estimated external movement parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A communication system, comprising:
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a first communication device, placed at a first moving device, configured to detect a movement of the first moving device at a first time point to obtain at least one first movement parameter, detect the movement of the first moving device at a second time point to obtain at least one second movement parameter, and transmit the at least one second movement parameter selectively according to whether or not a difference between an estimated internal movement parameter and the at least one second movement parameter is greater than a predefined threshold, wherein the first communication device estimates a position of the first moving device at the second time point based on the at least one estimating function and the at least one first movement parameter and accordingly obtains the estimated internal movement parameter, wherein the second time point is later than the first time point; and a second communication device of a second moving device, configured to receive and store the at least one first movement parameter, and obtain the movement of the first moving device at the second time point according to either the at least one second movement parameter or an estimated external movement parameter, wherein the second communication device estimates the position of the first moving device at the second time point based on at least one estimating function and the at least one first movement parameter and accordingly obtains the estimated external movement parameter. - View Dependent Claims (12, 13, 14)
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15. A communication device placed at a first moving device, comprising:
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a movement detecting module, configured to detect a movement of the first moving device to obtain at least one first movement parameter at a first time point, and detect the movement of the first moving device to obtain at least one second movement parameter at a second time point, wherein the second time point is later than the first time point; a transmitter, configured to transmit the at least one first movement parameter; and a controller, configured to estimate a position of the first moving device at the second time point based on at least one first estimating function and the at least one first movement parameter, and accordingly obtain an estimated internal movement parameter, wherein the controller controls the transmitter to transmit the at least one second movement parameter selectively according to whether or not a difference between the estimated internal movement parameter and the at least one second movement parameter is greater than a predefined threshold, wherein the transmitted at least one first movement parameter and the transmitted at least one second movement parameter are received by another communication device of a second moving device to estimate the position of the first moving device and obtain the movement of the first moving device at the second time point. - View Dependent Claims (16, 17, 18, 19)
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Specification