Handheld checker of second-generation identity card and checking method of handheld checker

Abstract

The invention discloses a handheld checker of a second-generation identity card and a checking method of the handheld checker. The checker comprises an identity card reading circuit, a TF (TransFlash) card reading circuit, a check alarm circuit, a microcontroller and a display screen, wherein a safety module, an identity card reading processor and a TF card reading processor are connected with a signal acquisition end of the microcontroller through a serial port switching chip respectively; and a control signal input end of the microcontroller is connected with the check alarm circuit and the display screen respectively. The checking method of the handheld checker comprises the following steps of: reading an identity card; reading a TF card; checking the identity card by comparison and outputting a checking result. The handheld checker has the characteristics of small size, light weight, convenience in use and carrying, capability of loading and updating data through the TF card, high card reading speed, power supply for only a functional module in a working state, capabilities of reducing system loss and prolonging the service time of a battery and the service life of the equipment, high power supply stability of a power source, high charging control precision, charging safety of the battery, long service life and the like.

Description

technical field [0001] The invention relates to a second-generation certificate hand-held verification instrument and a verification method thereof. Background technique [0002] With the popularization of the second-generation ID card, the second-generation ID card reader is used more and more widely, and has become one of the indispensable office supplies in many fields such as public security, education and enterprise management. The second-generation card verification instrument is used to read the information of the second-generation card, and compare and verify it in combination with the pre-stored information database, and finally achieve the purpose of identity verification. It is widely used in candidates' examination management, employee attendance management and other systems. The implementation provides reliable technical support. [0003] However, the existing second-generation certificate verification instruments generally have the following problems: (1) The ...

AI Technical Summary

Problems solved by technology

[0003] However, the existing second-generation certificate verification instruments generally have the following problems: (1) The volume is large and it is not convenient to carry; (2) The database can only be loaded and updated by connecting to a computer through a USB cable, and does not have a TF card Function, it is not very convenient to use; (3) The card reading of the ID card and the card reading of the TF card are completed by the microcontroller, which increases the load of the microcontroller and limits the card reading speed; (4) As long as it is turned on, The functional modules in the circuit are all in working condition, and the power loss of the system is high, which not only wastes battery power, but also shortens the service life of each functional module; It leads to loss of verification instrument data or even damage to equipment, and poor power supply stability; (6) The charging current control accuracy of rechargeable batteries is low, and the charging control effect is poor; some PMICs with high control accuracy and good performance are common Expensive, greatly increasing the overall cost of the handheld verifier

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