Firefighting is an extremely dangerous and complicated task. During the firefighting process, firefighters are always faced with life threats, especially when performing tasks indoors. In order to improve the efficiency of fire fighting and at the same time ensure the safety of workers, it is necessary to accurately track and locate each firefighter. Thereby obtaining its current position and orientation information for better monitoring management and scheduling. In the firefighter positioning equipment, induction components such as accelerometers, gyroscopes, magnetic sensors and air pressure sensors are often used to achieve tracking and positioning in the principle of inertial motion measurement.
The use of fire-fighting positioning equipment makes it easy for the on-site command center to understand the relative position of firefighters in the fire now, so that they can quickly guide rescuers to the best route to get to the incident and win valuable time for fire fighting and rescue. Secondly, the detailed and detailed location information of the whole staff is also beneficial to the on-site command center to carry out reasonable personnel deployment according to the development of the fire, and to send early warning and evacuation information to the relevant location personnel. The realization of the above functions is inseparable from the cooperation of the various measuring components in the positioning device. Among them, the acceleration sensor and the gyroscope mainly constitute the position and velocity measurement, and the magnetic sensors constitute an electronic compass for the azimuth recognition. The air pressure sensor determines the height of the wearer's position by measuring the change in value.
The TNI XB series three-axis electronic compass of PNI of the United States consists of a three-axis magnetic sensor and a three-axis accelerometer. It combines the experience of magnetic sensor application accumulated by PNI for many years, and performs hard magnetic compensation, soft magnetic compensation and tilt compensation for the electronic compass. Ensure that this high-precision three-axis electronic compass outputs accurate direction and attitude information. When the GPS fails or is affected, the PNI tilt compensation electronic compass TCM-XB will play a big role. PNI's electronic compass TCM-XB provides reliable, accurate azimuth, roll angle and pitch angle information.
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