Police service positioning equipment, method and system

• Main Authors: YANG JUNJIAN, YU XIAOJUAN, LI JINGANG, YAO XUEJIAO, ZHAO LINNA, YAN XINGPEI, DAI SHUAI, ZHU XINYU, CHENG CHAOFENG, CHU ZHAOMING, LIU JINGUANG, ZHU JIAN'AN, LIU TAO
• Format: Patent
• Language: Chinese; English
• Published: 19.10.2021
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; GYROSCOPIC INSTRUMENTS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURVEYING; TESTING

The invention discloses police positioning equipment, method and system, the equipment comprises a satellite positioning module, an inertial positioning module and a processor, the satellite positioning module is used for positioning according to satellite signals; the inertial positioning module is used for positioning according to the positioning coordinates of the satellite positioning module, the acceleration information and the angular velocity rotation information; the processor is used for executing the following steps: acquiring satellite signal intensity detected by the satellite positioning module; judging whether the satellite signals can be normally received according to the signal intensity; if the satellite signals cannot be normally received, acquiring a first coordinate of a navigation coordinate system obtained by calculating according to the satellite signals most recently and current first acceleration information and first angular velocity rotation information detected by the inertial posi