Anchor point coordinate calibration method and apparatus, and anchor point positioning method and apparatus

• Main Authors: TIAN PENG, YIN ZIYANG, DONG XINGANG, SHAO QIMING, WANG QINGLEI, ZHENG MINGJI, WANG NAIQIAN
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2019
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING; WIRELESS COMMUNICATIONS NETWORKS

The embodiment of the invention provides an anchor point coordinate calibration method and apparatus, and an anchor point positioning method and apparatus. During anchor point coordinate calibration,a positioning map is divided into a plurality of grids, each grid corresponds to an anchor point coordinate set, and the anchor point coordinate set comprises at least one anchor point coordinate; andthen, a trajectory is generated, and the anchor point coordinate is calibrated in combination with a reference point on the trajectory multiple kinds of sensor data. During anchor point positioning,the anchor point coordinate set for positioning is selected according to the grid where historical position coordinates of a measured point are located, in order to achieve accurate positioning. Therefore, unlike the prior art, in the technical scheme provided by the embodiment of the invention, the anchor point coordinate set is set for each grid, the anchor point coordinate set only serves the corresponding grid, and the