Mine Internet of Things data management system based on block chain

The utility model discloses a mine Internet of Things data management system based on a block chain, and the system comprises a sensing device which comprises different types of sensors, and the different types of sensors are disposed at a first preset position of a mine system; the control device comprises different kinds of controllers, and the same kind of controllers are arranged at second preset positions of the mine system; the Internet of Things gateway is provided with an edge computing unit and a protocol conversion unit, multiple types of interfaces are arranged between the protocol conversion unit and the edge computing unit, the Internet of Things gateway is provided with a safety device, and the safety device is connected with the edge computing unit. The data storage module is used for storing and querying at least one item of transmission data of the sensing device or the control device and authenticating other devices of the system; the transmission device comprises a switch and is used for tr