Application and Research of State Grid Assets Automatic Inventory Based on Cellular Narrow Band and Low Power WAN Technology

Traditionally the fixed assets of power equipment take a long time to take inventory, have a wide range of inventory, consume a lot of manpower, and it is difficult to check. The grid assets change frequently. Equipment assets are also changing at the same time as the inventory check. It is easy to leak, repeat, and multiple count in the way of account inventory. The inventory effect of assets is not good and cannot accurately reflect the quantity and value of physical assets. Based on the deficiencies of the traditional manual counting method, this paper proposes to establish a power Internet of Things intranet through wireless communication Internet of things technology with low power and wide coverage (LPWAN), combining mobile terminals and NB-IOT low power WAN. By using the active Internet of things (IOT) electronic tags and radio frequency read-write device, the asset electronic tags identified by the front end are transmitted to the IOT application network, realizing the interconnection between the sensing layer and the application layer, and verifying the accuracy and convenience of the wireless inventory of power grid assets. It has greatly reduced the amount of manpower and comprehensively supported the unified linkage of asset and equipment management. The most important thing is to realize the major technological breakthrough of “Dynamic consistency of the ledger and objects” of fixed assets.