便携式智能仪器的单键操作设计

The Design of Single Keyboard Operation for Portable and Intellignet Instrument

便携式智能仪器应具有操作简单、小巧轻便、电池供电等特点。简化硬件电路，降低电流消耗，是仪器设计的重要内容。本文总结了便携式智能仪器的设计原则，在此基础上提出了一种以单键取代功能键和数字键的设计方法，并以便携式智能粮食水分快速测定仪为例，介绍了单键操作设计技术。这种设计方法简化了硬件电路，提高了产品的可靠性，降低了仪器的生产成本，对子便携式智能仪器的产品化设计具有推广价值。

Portable and intelligent instructments are easy to operate, light, handy, and battery powered. It isimportant to simplify hardWare design and lower current consumption for portable and intelligent instruments.This paper sununs ac the design principle of portable and intelligent instruments, presents a method that singlekeyboard may be used instead of function keyboards and digital keyboards, introduces the techniques of design ofsingle keyboard operation by a portable and intelligent ins^ent for quickly measuring moistUre content of grain.Practical application shows that the design is reliable and reduces production costs, and can be widely used in portable and intelligent instruments.