智能零钱兑换及找零装置的设计
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密 惠 保
摘要
文章介绍了一种基于MSC－51单片机实现智能零钱兑换及找零装置的设计方案。该找零系统由电子找零机、投币机两部分组成，每部分均可单独使用。其中电子找零机由纸币识别系统和零钱兑换执行系统组成。投币机则集成了IC卡收费系统，可以实现公交车的电子收费。从一定意义上解决了公交车无法找零钱的大难题。
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文中涉及到的IC卡收费系统和纸币识别系统均采用现有的集成模块实现。文中就零钱兑换执行系统的实现方案做了具体的分析和论证，并对该部分的控制电路作了详细的说明和阐述；另外文中还给出了该方案中实现出币的机械装置的效果图，而且还对该机械装置的可行性进行了精密的理论分析和论证；文中还对该装置的操作方式以及发展前景作了说明和展望。
该装置特别适用于一些经常需要兑换零钱和找零钱的场合，例如公汽站零钱兑换点、公交车上、超市等；该装置为这些场合提供了一种方便快捷的零钱兑换及找零方式，将为无人售票车的普及发挥重要作用。从整体上来看该系统不仅具有良好的稳定性，而且还有轻便、体积小、经济等优点。
关键词：单片机，智能找零，IC卡识别系统，纸币识别系统
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Abstract
This passenger introduces a design scheme of a device that can realize intellectual exchanging and making change on the basis of MSC-51 MCU (Micro Control Unit). The system is made up by two parts of the electron making change machine, slot machine to make change, and every part can be used alone. Among them the electron making change machine is made up by a recognition system of paper currency and an executive system of exchanging change. Slot machine integrated IC card charge system, and can realize the electronic charging of the bus. This system has solved the great difficult problem that the bus cannot make change from certain meaning.
The IC card charge system and the recognition system of paper currency involved in the passenger both adopts the existing integrated module to realize. This passenger has made concrete analysis and demonstration on the realization scheme of the executive system of exchanging change, and made a concrete instruction and detail on the control circuit of the part. And the passenger provide the result picture of mechanical device that realizing offering the coin in this scheme, and has also carried on the accurate theory analyze and prove to the feasibility of this mechanical device. It also makes instruction and expectation to the operation mode and development prospect of the device in the article.
This device is especially suitable for some occasions that need to exchange and make change frequently, for example the bus stop’s window for exchanging change, in a bus, in a supermarket and so on. This device has offered a kind of convenient and swift way for exchanging and making change in these occasions, and it will play an important role for the popularization of the pay-to-driver bus. From the whole this system not only has good stability, but also there are such advantages as light, small, economy, etc.
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Keyword: MCU, intelligence makes change, the recognition system of IC card, the recognition system of the paper currency
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[来源：http://www.think58.com] Tags:智能 零钱 兑换 装置 设计 [资料来源：http://THINK58.com]