Position information prompting method, device and system

Abstract

The present invention discloses a position information prompting method, device, and system. A designated server receives from a portable locator multiple position point information obtained according to pre-set time and positioning time corresponding to each position point information, generates a movement track of the portable locator, and records the movement track; then, when the designated server receives the current position point information transmitted by the portable locator, according to the current position point information, an alert signal is generated if the current position point corresponding to the current position point information is not on the recorded movement track. A guardian holding a monitoring terminal can be ensured to know at any time whether the person being monitored and holding the portable locator is on a strange road, and thereby the safety information of the monitored person is mastered, and the user experience is enhanced.

1 . A position information displaying method, characterized in the method comprises:
 a server receiving and recording position point information transmitted regularly by a portable locator, the position point information comprising information for positioning a position point of the portable locator;   determining a location area corresponding to the position point information according to the position point information;   making statistics of the number of position points corresponding to the position point information in the location area among recorded position point information;   marking the location area or position points in the location area if the number of the position points exceeds a threshold;   displaying the marked location area or position points in the location area in an electronic map.   
     
     
         2 . The method according to  claim 1 , characterized in that, the displaying the marked location area or position points in the location area in an electronic map comprises:
 displaying the marked location area or position points in the location area differently according to the number of position points corresponding to recorded position point information contained in the location area; and/or   displaying the marked location area or position points in the location area differently according to a time difference between a positioning time of a first recorded position point in the location area and a positioning time of a last recorded position point.   
     
     
         3 . The method according to  claim 1 , characterized in that, the displaying differently comprises:
 displaying in the electronic map the marked location area or position points in the location area with different sizes, colors, brightness or transparency according to the number of the position points; and/or   displaying in the electronic map the marked location area or position points in the location area with different sizes, colors, brightness or transparency according to a length of the time difference.   
     
     
         4 . The method according to  claim 1 , characterized in that, the marking the location area or position points in the location area further comprises:
 obtaining a positioning time corresponding to a first appearing position point in the location area and a positioning time corresponding to a last appearing position point in the location area, and calculating a time length between the two positioning times;   judging whether the time length reaches a time threshold, marking the location area or position points in the location area if the time length reaches the time threshold, and not marking if the time length does not reach the time threshold; or in the time length, calculating a proportion of the number of position points appearing in the location area to the number of position points corresponding to all position point information recorded in the time length, marking the location area or position points in the location area if the proportion is higher than a preset value, and not marking the location area or position points in the location area if the proportion is lower than the preset value.   
     
     
         5 . The method according to  claim 1 , characterized in that, the making statistics of the number of position points corresponding to the position point information in the location area among recorded position point information comprises:
 making statistics of the number of position points corresponding to the position point information in the location area among position point information recorded in a time period as same as a preset time period where a positioning time of the position point information lies; and   marking the location area or position points in the location comprising the marking corresponding to the preset time period.   
     
     
         6 . The method according to  claim 1 , characterized in that, the determining a location area corresponding to the position point information according to the position point information comprises:
 according to the position point information, considering a natural geographical area where a position point corresponding to the position point information locates as the location area corresponding to the position point information; or   taking the position point corresponding to the position point information as a center, considering a surrounding area of a preset radius as the location area corresponding to the position point information; or   judging there are multiple neighbor position points around the position point corresponding to the position point information, and determining the location area corresponding to the position point information according to a distance between the position point and the multiple neighbor position points.   
     
     
         7 . The method according to  claim 1 , characterized in that, the method further comprises:
 receiving multiple position point information transmitted by the portable locator in a continuous time period; and   marking the position point corresponding to each position point information in a temporal order according to the positioning time corresponding to each position point information, and generating a movement track of the portable locator.