With the development of electronic technology (especially computer technology) and network communication technology, buildings are becoming more intelligent and humanized in construction, and intelligent buildings, as products of this era, adopt the most advanced technologies in computers, information communication, etc. To coordinate the work of electric power, air conditioning, lighting, disaster prevention, anti-theft, transportation equipment in the building, realize automatic control of equipment in the building, manage information resources, and provide information services for users.

There are many pipes in the intelligent building. The heating and cooling water pipes are distributed between the floors, and the water pipes such as domestic water and fire water are used. If water leakage occurs, the work will not be carried out normally and unnecessary losses will be caused. In addition, once the elevator leaks, it may cause the elevator to malfunction, damage the elevator, and serious accidents such as electric shock may occur. At the same time, most intelligent buildings have their own generator sets, so the oil leakage monitoring of the generator room is also a part that cannot be ignored. On the other hand, according to the "Intelligent Building Design Standards" and "Intelligent Building Engineering Quality Acceptance Specifications" and other national regulations, intelligent buildings must be equipped with environmental monitoring equipment as required to prevent water leakage accidents in buildings and cause major losses or safety accidents. The main responsibility of the leak detection system is to monitor whether there is water leakage in the building. In case of leakage and water leakage, the leak detection system will notify the on-duty personnel through the water-immersion sensor and the external device of the leak-sensing line with sound and light alarm and SMS. Early detection of water leakage in a timely manner to avoid incalculable losses. Xiangxiang leak detection system has the characteristics of fast response, strong function and convenient use, which is very suitable for the safety prevention and control of intelligent buildings.