An anti-cheating detection method and system for an internet of things terminal based on state monitoring
By constructing the physical fingerprint and circuit impedance analysis of the connected cash register, and combining electronic sealing and dynamic random code verification, the problem of identifying illegal modification of intelligent connected cash registers was solved, realizing proactive defense of the equipment and reliability of measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGZHOU ZHIQI HENGQI CO LTD
- Filing Date
- 2026-04-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing smart connected cash registers have difficulty accurately identifying illegal welding or replacement when faced with disassembly, modification, identity fraud, and unauthorized use, leading to increased risks of measurement fraud and data security.
By collecting the bit flip characteristics of the network-connected cash register's memory at the moment of power-on, a physical fingerprint is constructed. This fingerprint is then combined with the analysis of circuit impedance using chaotic dynamics theory. Finally, by combining electronic sealing with dynamic random code interaction verification, an active defense system is built to ensure that the device can resume metering when its identity and status are compliant.
It enables keen detection and timely prevention of illegal modifications, reduces the risk of unauthorized modification of smart connected cash registers, and ensures the accuracy and security of measurement.
Smart Images

Figure CN122415112A_ABST