METHOD OF RECORDING POSITION OF MOBILE DEVICE, MOBILE DEVICE AND RECORDING MEDIUM THEREOF
First Claim
1. A method of recording the position of a mobile device, the method comprising:
- calculating a moving speed of the mobile device;
decreasing a frequency of recording position information of the mobile device if the moving speed is not higher than a first speed;
increasing the frequency of the recording of the position information if the moving speed is higher than a second speed; and
changing the frequency of the recording of the position information exponentially based on the moving speed of the mobile device, if the moving speed is higher than the first speed and not higher than the second speed.
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Abstract
A method of recording the position of a mobile device, wherein the method is used to reduce power consumption, a mobile device having a position recording function, and a recording medium having embodied thereon a program for executing the method. The method includes calculating a moving speed of the mobile device; if the moving speed is not higher than a first speed, decreasing the frequency of recording of position information of the mobile device; if the moving speed is higher than the first speed, increasing the frequency of recording of position information of the mobile device; and if the moving speed is higher than the first speed and not higher than a second speed, exponentially-changing the frequency of recording of the position information of the mobile device according to the moving speed of the mobile device.
24 Citations
24 Claims
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1. A method of recording the position of a mobile device, the method comprising:
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calculating a moving speed of the mobile device; decreasing a frequency of recording position information of the mobile device if the moving speed is not higher than a first speed; increasing the frequency of the recording of the position information if the moving speed is higher than a second speed; and changing the frequency of the recording of the position information exponentially based on the moving speed of the mobile device, if the moving speed is higher than the first speed and not higher than the second speed. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A mobile device comprising:
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a position information receiving unit to receive present position information of the mobile device through a network; a storing unit to store the position information; and a controlling unit to calculate a moving speed of the mobile device based on the present position information and prior position information of the mobile device and to control the position information to be recorded in the storing unit; wherein, if the calculated moving speed is higher than a first speed and not higher than a second speed, the controlling unit changes the frequency of the recording of the position information exponentially according to the moving speed of the mobile device. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A computer readable recording medium having embodied thereon a computer program to execute a method of recording a mobile device, the method comprising:
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calculating a moving speed of the mobile device; decreasing the frequency of recording position information of the mobile device if the moving speed is not higher than a first speed; increasing the frequency of the recording of the position information, if the moving speed is higher than a second speed; and if the moving speed is higher than the first speed and not higher than the second speed, exponentially changing the frequency of the recording of the position information according to the moving speed of the mobile device. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A method of reducing power consumption when recording a position of a mobile device, the method comprising:
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calculating a moving speed of the mobile device; and repeatedly recording position information of the mobile device; wherein; a frequency in which the position information is recorded is decreased if the moving speed is less than or equal to a first speed; the frequency in which the position information is recorded increased if the moving speed is greater than a second speed; and the frequency in which the position information is recorded is changed exponentially based on the calculated moving speed, if the moving speed is greater than the first speed and less than or equal to the second speed.
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21. The method of claim 21, further comprising:
increasing, decreasing, or exponentially changing the frequency in which the position information is recorded based on the calculated moving speed each time a first time period elapses. - View Dependent Claims (23, 24)
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22. The method of claim 22, further comprising:
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receiving an interrupt signal whenever a second period of time elapses; after receiving the interrupt signal, determining whether the first time period has elapsed since the previous interrupt signal was received; and recording the position information if the first time period has elapsed since the previous interrupt signal was received.
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Specification