With the advancement of the times, science and technology are also developing rapidly, which is convenient for people's daily life. In the large parking lots of major cities, we can see the impact of technological advancement and the intelligent parking lot system of parking lots in some places. The method will use wireless geomagnetic sensors. The principle of the latest technology of wireless geomagnetic sensors is to use the changes of the Earth's magnetic field. When the vehicle passes or stops above the wireless geomagnetic sensor, the magnetic field in the corresponding area will change. The wireless geomagnetic sensor senses this change, judges the current driving state of the vehicle and transmits the relevant information to the management in real time through wireless communication system.

The wireless geomagnetic sensor is easy to install and maintain. It no need to damage the on-site environment to embed equipment. It can be directly attached to the surface, greatly reducing the construction period and difficulty, saving large installation costs, and enabling the intelligent parking system to be put into use quickly.
In addition, it has strong anti-interference ability, is basically free from external electromagnetic interference, and can work around the clock, without being affected by extreme weather such as rain and snow. The installation is also applicable on any road surface, the installation position is flexible, and the installation size is small. For the user, the wireless geomagnetic sensor is not only low in cost, but also simple in operation, easy to grasp, easy to manage, long in service life, and generally requires no maintenance.
The development of science and technology has improved to a certain extent that all large and medium-sized cities are facing traffic congestion and complicated urban driving routes. It is believed that wireless geomagnetic sensors will have broader application prospects in urban traffic management.
