A method and device for judging the reachability of a point of interest
A point of interest and judgment module technology, applied in the field of vehicle navigation, can solve the problem of inaccurate judgment of whether a point of interest is reachable or not
Active Publication Date: 2015-12-09
NAVINFO
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[0004] The purpose of the present invention is to provide a method and device for judging the reachability of a point of interest in view of the problem existing in the prior art that the judgment of whether the point of interest is reachable is inaccurate. The method includes:
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[0048] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings, so as to solve the problem of inaccurate determination of whether a point of interest can be reached in the prior art.
[0049] The navigator obtains the remaining fuel volume of the car at the current location through the fuel sensor of the car, which is 10 liters. The fuel consumption per unit distance is 10 liters according to the previously scheduled time, such as the distance traveled by the car within 10 minutes of 20 kilometers and the fuel consumption of 2 liters. liters / 100 kilometers, and calculate the longest distance that the car can travel is 100 kilometers, explore the gas station on the road, get the distance that the car travels from the current location to the gas station is 80 kilometers, according to the longest distance that can travel 100 kilometers Compare the result with the distance of 80 kilometers to the gas station to judge ...
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The invention provides a method and an apparatus for determining reachability of an interest point, so as to solve the problem of inaccurate determination of the reachability of the interest point in the prior art. The method comprises the steps of acquiring residual oil amount of a vehicle at a current position through a oil amount sensor of the vehicle by using a navigator; getting an oil consumption per unit distance through a driving distance and oil consumption of the vehicle in a predetermined time; calculating the longest distance that the vehicle can drive, exploring interest points on the road; acquiring a distance of the vehicle driving from the current position to the interest point; and determining the reachability of the interest point according to comparing results of the longest distance that the vehicle can drive and the distance for driving to the interest point;. Since the navigator can determine the reachability of the interest point according to the comparing results of the longest distance that the vehicle can drive and the distance for driving to the interest point, so that the determination whether the interest point reaches or not is more accurate.
Description
technical field [0001] The invention relates to the field of vehicle navigation, in particular to a method and device for judging the reachability of a point of interest. Background technique [0002] The currently used oil quantity alarm method is to obtain the current remaining oil quantity through the oil quantity sensor, and then compare it with the comparison voltage set by the comparison circuit to determine whether the oil quantity is low, and send an alarm when the remaining oil quantity is lower than a certain value. The existing oil volume alarm method only uses the remaining oil volume lower than a certain value as the criterion for judging whether to alarm, regardless of whether the remaining oil volume can reach the gas station. Therefore, there will be a problem of fuel quantity alarm hysteresis. That is, when the fuel quantity alarm occurs, the car cannot drive to the nearest gas station. [0003] It can be seen that there exists in the prior art: the proble...
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IPC IPC(8): G01C21/34G01C21/26
Inventor 沙海胡守兴
Owner NAVINFO