Jiulian Technology is an artificial intelligence security service provider, focusing on the research and development, production, sales and service of indoor and outdoor positioning technology. The WIFI+inertial navigation positioning engine independently developed by the company has fast deployment, controllable cost, and high cost performance; the 3D indoor map editor has independent intellectual property rights and occupies the advanced level of the industry. The company also provides wearable positioning devices, and flexibly builds a positioning system combining software and hardware to adapt to different business scenarios. On this basis, the company has developed a large-scale complex security positioning dispatching command system, a block version of indoor and outdoor security dispatching system, smart community personnel positioning system, factory personnel safety management system and other security solutions, which have been implemented and promoted in many projects.