With the continuous development and popularization of mobile phones, the technical level of personal mobile communication methods has improved significantly, especially after the popularization and application of 3G and 4G technologies, the negative impact on prisons, detention centers and other sim

Beidou agricultural machinery automatic navigation driving system is a comprehensive system integrating satellite signal reception, positioning and control. It is composed of Beidou satellite antenna, high precision receiver, display, controller, hydraulic valve, angle sensor and other parts. Accord

Intelligent public transport is an important part of the city's intelligent transport. The system takes public transport big data as the core and is driven by business applications. Through the systematic study and in-depth analysis of public transport business applications, an intelligent public tr

Fish lamps are fish-collecting lamps used in wide-area surface fishing operations. They are generally installed and applied to the side of the fishing boats. Energy saving and emission reduction, increasing the output of the fishing boat and improving the economic efficiency of fishing have always b

Water pollution has always been a worldwide environmental pollution problem. China needs to vigorously develop industry to drive economic development, and it is also hard to avoid a degree of negative impact on the environment, and one of the main environmental pollution issues is water pollution. A