輔助動力手工具及其無線網路

An Auxiliary Power Hand Tool and Its Wireless Network

廖敏存(Min-Tsun Liao)

指導教授 ： 廖文煇

國立虎尾科技大學/工程學院/機械與機電工程研究所/碩士(2011年)

https://doi.org/10.6827/NFU.2011.00088

摘要

本文旨在發展一種輔助動力手工具控制並建立一種無線射頻（RF 2.4GHz）網路(RFWLAN)架構以收集此工具鎖附扭力。此文兩大部分：第一部份為輔助動力手工具開發，乃採Sonix SN8P1829 MCU為主控制器，此工具操作初階段以電動馬達為輔助動力進行鎖附，能依扳機扣動幅度給定馬達轉速，同時以檢知馬達電樞電流的方式估測檢知扭力，一旦到達預設扭力66%即轉為人工施力鎖附到達預設扭力，是時完成一次鎖附，並將鎖附扭力資訊透過此RFWLAN傳送到電腦端。第二部份建立RF網路架構以收集手工具之鎖附扭力資訊，乃使用TI MSP430家族MCU加上CC2500 RF晶片，以達到對一廠區中若干支手工具鎖附扭力的資料收集。在此RFWLAN架構，手工具到路由端之間採用較易維護的星型拓撲收集，而各路由端之間採用線型拓撲以沿線接力方式連結，最後連結到電腦端。一手工具可隨時加入、退出此RFWLAN，並可隨意在此RFWLAN的有效區域內移動與作業。為了避免射頻訊號碰撞問題，依IEEE 802超框方式分割通訊時間槽為基礎，各手工具分享其各自時間槽以傳輸資訊。我們嘗試兩種資料收集方法，並比較兩者之優缺點。在電腦VB端收集到資料後，可呈現各手工具在線狀況、目前所在廠區、資料筆數、鎖附扭力值以及鎖附時間等資訊。此系統經過實體測試後，手工具的操作不但省力且快速，透過無線網路達到資料收集，方便且實用。

關鍵字

手工具 ； 輔助動力 ； 無線網路

並列摘要

The purpose of this paper is to develop the control of an auxiliary power hand tool and a RF 2.4GHz wireless network (RFWLAN) for collecting the torque of tools to tighten a screw. There are two main parts in this paper：The first part is to develop an auxiliary power hand tool. The host controller adopts Sonix SN8P1829 MCU. The first step of the tool operation is that the tool is driven to tighten a screw by an electric motor power. The motor spindle speed is controlled with a trigger pressed level. At the same time, the tightening torque is estimated by the armature current of motor. Once the tightening torque reaches 66% of preset torque, the tool operation is changed to the manual force mode to driver to the preset torque. The torque data are transmitted to the host computer by RF. The second part is to develop a RFWLAN using the RT2500T module. Through the wireless network, the torque data are collected for the power tools in a factory. In the organization of the RFWLAN, a star topology is easier to maintain so that is adopted for the data linking from the hand tool to the route; and a linear topology is adopted among the routes; and at the final the data are linked to the host computer. One tool can free join or exit the RFWLAN and it can move and work in the valid area of the RFWLAN. To avoid the collision for the RFWLAN, a separation of the communication time slots is adopted based on IEEE 802 Superframe approach and each hand tool will share itself time slice to transmit data to PC by RF. Two data collection processes are proposed and implemented. In final, the collected data including such as online status, location, operation count, tightening torque and operating time etc are shown on HMI developed by Visual Basic on PC. By the practical testing, the developed hand tool is not only effort-saving but also fast and the developed RFWLAN is very convenient and efficient for data collection.

並列關鍵字

hand tool ； auxiliary power ； wireless network

參考文獻

[6]盧永豐，「無線嵌入式系統之拓撲管理及安全考量」，臺灣大學資訊工程學研究所，博士論文，臺灣台北，2010。

[7]陸偉杰，「基於ZigBee無線網路之輔助環境監測與控制系統」，國立成功大學電機工程學系碩博士班，博士論文，臺灣台南，2010。

[8]邱俊民，「具可程式邏輯控制功能之無線微控器設計與實現」，國立虎尾科技大學機械與機電工程研究所，碩士論文，臺灣雲林，2009。

[1]曾吉村，「數位動力手工具之扭力控制」，國立虎尾科技大學機械與機電工程研究所，碩士論文，臺灣雲林，2010。

[5]華強，「應用FMEA於氣動工具產品設計之研究-以衝擊扳手為例」，朝陽科技大學工業設計系碩士班，碩士論文，臺灣台中，2010。