Passive wireless aluminum electrolysis cell cathode steel bar and furnace wall temperature measuring device

The utility model discloses a passive wireless temperature measuring device for a cathode steel bar and a furnace wall of an aluminum electrolysis cell, which comprises a plurality of wireless passive temperature measuring modules, each wireless passive temperature measuring module is arranged among four adjacent temperature monitoring points in each electrolysis cell, and the wireless passive temperature measuring modules are used for measuring the temperature of the cathode steel bar and the furnace wall of the aluminum electrolysis cell. Each wireless passive temperature measurement module is connected with four temperature measurement input points, the four temperature measurement input points are installed on four temperature monitoring points respectively, each wireless passive temperature measurement module comprises a main control CPU, a thermoelectric power generation piece and a wireless transceiver head, the thermoelectric power generation pieces and the wireless transceiver heads are connected to