A dual power supply charging system and method for a composite pass card

Abstract

The invention relates to the technical field of high-speed access cards, in particular to a dual-power charging system and method for a composite access card; the invention includes a main control module, a 5.8G radio frequency module, a battery and a 13.56MHZ induction radio frequency module; a 13.56MHZ induction radio frequency module An antenna, a limiting unit, a rectifying unit and a voltage stabilizing unit connected in sequence are arranged inside; a low-voltage detection unit is arranged inside the 5.8G radio frequency module, and when the battery voltage is greater than a preset voltage, the battery provides power to the main control module and The 5.8G radio frequency module supplies power, and when the battery voltage is lower than the preset voltage, the 5.8G radio frequency module stops working, and the 13.56MHZ induction radio frequency module supplies power to the main control module; the present invention adopts battery power supply and magnetic field induction power supply Dual power supply mode, under normal circumstances, the battery is used for power supply, when the battery is out of power, the main control module is powered by magnetic field induction, so that it can continue to work.

Description

technical field [0001] The invention relates to the technical field of high-speed pass cards, in particular to a dual-power supply charging system for a composite pass card and a method thereof. Background technique [0002] In recent years, the rapid construction of the national expressway network has promoted urban development and national economic growth, but because there are often two or more driving paths between a pair of expressway entrances and exits, it has caused problems in expressway tolls and settlements. Therefore, a highway ambiguity road identification system that can effectively record vehicle entrance information and route information, determine the vehicle's driving route and accurately calculate expressway tolls is proposed. [0003] The composite pass card is a crucial part of the highway ambiguity road recognition system. It uses active electronic tags, and its power supply is a 3V lithium-manganese button battery with a service life of five years. The...

AI Technical Summary

Problems solved by technology

[0002] In recent years, the rapid construction of the national expressway network has promoted urban development and national economic growth, but because there are often two or more driving paths between a pair of expressway entrances and exits, it has caused problems in expressway tolls and settlements. A certain degree of trouble, so a freeway ambiguity road recognition system that can effectively record vehicle entrance information and route information, determine the vehicle's driving route and accurately calculate expressway tolls is proposed.

[0003] The composite pass card is a crucial part of the highway ambiguity road recognition system. It uses active electronic tags, and its power supply is a 3V lithium-manganese button battery with a service life of five years. Therefore, when the battery power is low, The active electronic tag in the composite access card cannot normally record the vehicle route information, and the card packaging adopts a one-time molding and non-removable process, which determines that the entire composite card cannot be used again, resulting in a certain waste of resources

Images