Hhd technology is a focus on the car networking、iot independent innovation national high-tech enterprises, new logistics monitoring and management platform, oil transportation control platform, cold chain temperature monitoring platform based on the research of developed safety intelligent lock, intelligent security box, intelligent sensor, temperature monitoring equipment, intelligent control equipment based on core products, which can be used for covering the solution in the energy and chemical industry, medical health, power, finance and insurance, customs clearance, transportation management, logistics and distribution industry customization.