Electronic label and monitoring method, device and system thereof

An electronic label, comprising:

• a second power supplier, configured to supply power to the electronic label;
• a second controller, configured to monitor at least one of a power supply voltage and a remaining power of the second power supplier;
• and
• a first transceiver, configured to report at least one of the power supply voltage and the remaining power to an electronic label monitoring device, and receive at least one of a comparison result between the power supply voltage and a third preset voltage threshold and a comparison result between the remaining power and a third preset power threshold,
• wherein the second power supplier comprises a second booster circuit, and the second controller is configured to turn on the second booster circuit to boost the power supply voltage when at least one of the following conditions is met:
• the power supply voltage is lower than the third preset voltage threshold;
• and
• the remaining power is lower than the third preset power threshold,
• wherein the electronic label further comprises a second alarmer,
• wherein the second controller is further configured to send a fourth alarm instruction to the second alarmer when at least one of the following conditions is met:
• the power supply voltage is lower than the third preset voltage threshold;
• and the remaining power is lower than the third preset power threshold;
• wherein the second alarmer is configured to receive the fourth alarm instruction and output fourth alarm information,
• wherein
• the first transceiver is further configured to report usage status information of the electronic label to the electronic label monitoring device and receive a comparison result between current remaining power and expected remaining power of the electronic label;
• the second controller is further configured to send a fifth alarm instruction to the second alarmer when a power difference between the current remaining power and the expected remaining power is greater than a preset power difference threshold;
• and
• the second alarmer is further configured to receive the fifth alarm instruction and output fifth alarm information.

A method for monitoring power supply for an electronic label, comprising:

• monitoring at least one of a power supply voltage and a remaining power of the electronic label;
• reporting at least one of the power supply voltage and the remaining power to an electronic label monitoring device;
• receiving at least one of a comparison result between the power supply voltage and a third preset voltage threshold and a comparison result between the remaining power and a third preset power threshold;
• and
• boosting the power supply voltage when at least one of the following conditions is met:
• the power supply voltage is lower than the third preset voltage threshold;
• and
• the remaining power is lower than the third preset power threshold,
• wherein the method further comprises:
• outputting fourth alarm information when at least one of the following conditions is met:
• the power supply voltage is lower than the third preset voltage threshold;
• and
• the remaining power is lower than the third preset power threshold,
• reporting usage status information of the electronic label to the electronic label monitoring device;
• receiving a comparison result between current remaining power and expected remaining power of the electronic label;
• and
• outputting fifth alarm information when a power difference between the current remaining power and the expected remaining power is greater than a preset power difference threshold.

An electronic label monitoring device, comprising:

• a second transceiver, configured to receive at least one of a power supply voltage and a remaining power of an electronic label, and send at least one of a comparison result between the power supply voltage and a third preset voltage threshold and a comparison result between the remaining power and a third preset power threshold to the electronic label;
• and
• a third controller, configured to call at least one of the third preset voltage threshold and the third preset power threshold, and compare at least one of the following two sets of values to obtain the comparison result:
• between the power supply voltage and the third preset voltage threshold, and between the remaining power and the third preset power threshold,
• wherein
• the second transceiver is further configured to receive usage status information of the electronic label and send a comparison result between current remaining power and expected remaining power to the electronic label;
• the third controller is further configured to calculate the expected remaining power according to the usage status information of the electronic label and a power consumption corresponding to the usage status information, and to compare the current remaining power with the expected remaining power to obtain the comparison result.