Patent ID: 11892301
Assignee: AMICRO SEMICONDUCTOR CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A map update control method for a vision robot, the map update control method controlling the vision robot to acquire an image of a road sign set in a preset working region in real time, comprising:
S1 acquiring measured data of map attributes corresponding to a current map of the preset working region;
S2 in a case that it is detected that the vision robot completes a traversal of the preset working region, judging whether the current map and a prestored historical map meet a preset matching degree according to the measured data of the map attributes, in a case that the current map and the prestored historical map meet the preset matching degree, determining to store the current map, in a case that the current map and the prestored historical map do not meet the preset matching degree, determining not to store the current map but to keep the prestored historical map; and
S3 in a case that it is determined to store information of the map attributes corresponding to the current map, writing the information of the map attributes corresponding to the current map in a map storage medium to update information of the map attributes corresponding to the historical map;
wherein the map storage medium is a storage unit within a system of the vision robot,
wherein the S2 comprise:
S201 judging whether an actual region area corresponding to the current map is greater than an actual region area corresponding to the historical map by a preset area threshold according to the measured data of the map attributes, in a case that the actual region area corresponding to the current map is greater than the actual region area corresponding to the historical map by the preset area threshold, entering S204, otherwise, entering S202;
S202 judging whether the number of road signs corresponding to the current map is greater than the number of road signals corresponding to the historical map by a preset number threshold according to the measured data of the map attributes, in a case that the number of road signs corresponding to the current map is greater than the number of road signals corresponding to the historical map by the preset number threshold, entering S204, otherwise, entering S203;
S203 judging whether storage time of the historical map is greater than a preset time threshold according to the measured data of map attributes, in a case that the storage time of the historical map is greater than the preset time threshold, entering S204, otherwise, determining not to write the current map in the map storage medium but to keep the historical map; and
S204 determining to store the current map to update the historical map;
wherein judgment standards of the preset matching degree comprise difference quantity of actual region areas corresponding to maps, difference quantity of numbers of road signs corresponding to maps, and difference quantity of storage time of maps; and
the measured data of the map attributes is obtained by performing computation on an image of a road sign in a case that the vision robot traverses the preset working region; and the measured data of the map attributes is converted to obtain an actual region area corresponding to a map, a number of road signs corresponding to a map, and storage time of a map.