Tank truck intelligent valve lock JT802 is a slave lock product developed on the basis of the existing product functions of JT701D/JT701L intelligent electronic locks. JT701D is the master lock, and JT802 is the slave lock, which can be applied to the application scenario of the tank truck customer with one master and multiple slaves (multi-valve). It supports remote modification of the product configuration parameters. With a disposable lithium manganese battery, the product is low power consumption and can be used for a long time. At the same time, it provides high-precision asset timing tracking information through the master lock JT701D/JT701L/mobile phone positioning, and supports remote online and on-site Bluetooth offline unlocking methods. It supports real-time monitoring and historical trajectory playback on different platforms, valve lock status, and alarms. information. The product itself has passed the explosion-proof certification (intrinsically safe) and is adapted to explosion-proof (intrinsically safe) handheld terminals. The handheld terminal and the cloud platform can be used to control the equipment at the same time, creating a lower cost, safer, more efficient and smarter for customers mobile asset positioning management solution.