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—, system background
As municipal public utilities continue to deepen and the number of users of urban measuring instruments continues to increase, how can we use more economical means to strengthen the management of user meters, prevent power theft losses caused by user destruction/forged seals, and strengthen supervision, Plugging management loopholes, protecting national property safety, and safeguarding the interests of power companies; at the same time, how to strengthen the comprehensive management of urban meters will become an issue of increasing concern for the municipal industry.
Traditional seals need to rely on seal tongs to imprint the seals, and the physical appearance of the seals on the seals is used to identify whether the seals are legal and effective. The manufacture, purchase, issuance, sealing, inspection, unsealing and other aspects of the seal cannot be strictly and effectively monitored, and it can no longer meet the high-standard anti-counterfeiting requirements, and the random disposal of the one-time seal will also cause serious environmental problems. Lead pollution, Western developed countries have banned the production and use of metal seals. At present, other metal or plastic seals are used instead, but the problem of counterfeiting has not been completely solved.
2. Introduction to electronic signature
RFID electronic signature management is mainly centered on the issuance and inspection system of electronic signatures, and can realize one-level or multi-level management according to security needs; based on RFID technology, semiconductor chips and ordinary signatures are integrated to form a safe , Anti-counterfeiting and other functions; relying on the widespread application of computers, through the electronic signature management system to realize electronic and informatized management of signatures, which facilitates the statistics, analysis, and And data reporting, improve the daily inspection supervision and supervision of the signed seal by the measurement department.
The sealing method of the electronic signature is roughly the same as that of the general pressure-bonding type, which is very convenient and simple. If the sealed electronic seal is unsealed by a method other than cutting the sealing line, the abnormally shaped outer lead will have obvious traces of damage and cannot be restored to its original state, which is easy to identify.
The electronic seal is small in size, light in weight, fully sealed, dust-proof, waterproof, corrosion-resistant, anti-vibration, anti-impact, anti-interference and damage from strong electricity (non-contact type), and the working environment temperature can reach -40～+85℃ , Good weather resistance, durability, lead-free pollution, can adapt to normal and harsh environmental conditions.
3. System design goals
The electronic signature management system realizes the overall management of the electric energy meters within the entire jurisdiction of the power supply system. By using this system, the information management capability of the power supply system can be improved.
The design goals of the system are:
1) Security and anti-counterfeiting
The production of electronic seals integrates the chip and seal structure, and each chip has a set of globally unique serial numbers, which are fixed in the chip during production and cannot be changed. At the same time, the unique serial number of the chip is bound to the serial number of the seal surface to form a unique correspondence, thus ensuring the absolute uniqueness of each electronic seal and not being forged.
2) Sign-off electronic management
When electronically sealed purchases are stored in the warehouse, the measurement department can directly import the electronic documents with the unique serial number and surface serial number of the sealed into the sealed database to generate electronic sealed archives. Since then, each operation of the seal will be automatically recorded and archived, which solves the traditional tedious work of relying on manual recording and archiving, and truly realizes the electronic seal management.
3) Inspection and supervision
Traditional inspection operations can only rely on the sense of responsibility of the staff to ensure the comprehensiveness and effectiveness of the inspection. However, even if the inspection personnel do not carry out the actual inspection work, it is difficult for the management personnel of the measurement department to find out and correct the reasons. It is the lack of an effective supervision and supervision system.
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