外文文獻(xiàn)及翻譯-藍(lán)牙技術(shù)在工業(yè)監(jiān)控系統(tǒng)中的應(yīng)用

1、<p>　　藍(lán)牙技術(shù)在工業(yè)監(jiān)控系統(tǒng)中的應(yīng)用</p><p>　　摘要:介紹了一種短距離無線通信技術(shù)——藍(lán)牙在工業(yè)控制系統(tǒng)的應(yīng)用實例。利用新華龍公司的C8051F020和第一代藍(lán)牙模塊芯片BCM-05,設(shè)計一個藍(lán)牙空氣粉塵檢測器,使之與藍(lán)牙接入設(shè)備搭建一套用于工業(yè)控制領(lǐng)域的的空氣粉塵檢測系統(tǒng),同時給出了該藍(lán)牙粉塵檢測器的硬件設(shè)計和系統(tǒng)的軟件框架。</p><p>　　關(guān)鍵詞:藍(lán)牙，

2、粉塵傳感器，C8051F020</p><p>　　A pplication of Bluetooth Technology inIndustrial Control System</p><p>　　Abstract:Anapplication example of Bluetooth is proposedin the industrial control system.A Bluet

3、ooth air dustdetectoris designed by using the C8051F020 and the Bluetooth chip BCM-05. It can be used to detect the dustin the air with Bluetooth access device.The hardware and the software designs of the embedded device

4、 are proposed.</p><p>　　Keywords:Bluetooth,dustsensor,C8051F020</p><p><b>　　引言</b></p><p>　　目前,藍(lán)牙技術(shù)已臻于完善。在局部范圍內(nèi),藍(lán)牙通信具有可靠性、安全性及容錯能力強(qiáng)等優(yōu)點(diǎn)。這些優(yōu)點(diǎn)使得藍(lán)牙技術(shù)在民用市場上的應(yīng)用也越來越廣泛,手機(jī)周邊配件就是

5、它的一個典型且成熟的應(yīng)用。在惡劣環(huán)境下,工業(yè)現(xiàn)場設(shè)備具有布線難及維修不方便等諸多缺點(diǎn),把藍(lán)牙技術(shù)應(yīng)用于這些工業(yè)現(xiàn)場環(huán)境中將可以發(fā)揮藍(lán)牙通信的優(yōu)勢而解決環(huán)境惡劣情況下的諸多不便。因此,近年來越來越多的藍(lán)牙設(shè)備也開始應(yīng)用于工業(yè)無線領(lǐng)域。本文設(shè)計的藍(lán)牙粉塵檢測器就是藍(lán)牙技術(shù)在工業(yè)無線檢測系統(tǒng)中的一個應(yīng)用實例。</p><p>　　1 芯片的選擇和特點(diǎn)簡介</p><p>　　目前,嵌入式系統(tǒng)芯片

6、眾多,主要有51系列、ARM系列及DSP系列。后兩者現(xiàn)在越來越有取代前者的趨勢,但考慮到作者學(xué)校主要在51系列芯片上教學(xué),做過開發(fā),且目前C51系列仍有不少市場,因此本文芯片選用C51系列。新華龍公司出產(chǎn)的C8051F020是C51系列片子中用得比較廣的一款,此芯片主要特點(diǎn)有:高速、流水線結(jié)構(gòu)的8051、兼容的CIP-51、內(nèi)核(25MIPS);全速、非侵入式(不占用片內(nèi)資源)的在系統(tǒng)調(diào)試接口(片內(nèi));64KB可在系統(tǒng)編程的FLASH存

7、儲器,這對一般應(yīng)用而言,容量基本足夠;4352(4KB+256)字節(jié)的片內(nèi)RAM;可尋址64KB地址空間的外部數(shù)據(jù)存儲器接口;接口豐富,具有硬件實現(xiàn)的SPI、SMBus/I2C和兩個UART串行接口;5個通用的16位定時器;片內(nèi)看門狗定時器、VDD監(jiān)視器和溫度傳感器;同</p><p>　　時內(nèi)部集成的轉(zhuǎn)換器也具有一定精度,處理器內(nèi)部自帶兩個12位的D/A轉(zhuǎn)換器和一個8位的A/D轉(zhuǎn)換器,8位的A/D有8個外部的輸

8、入端,最大的可編程采樣速率為500ksps;具有6個捕捉/比較模塊的可編程計數(shù)器/定時器陣列。</p><p>　　2 系統(tǒng)硬件設(shè)計[1-2]</p><p>　　2.1 系統(tǒng)硬件結(jié)構(gòu)</p><p>　　本系統(tǒng)硬件結(jié)構(gòu)比較簡單,主要由電源部分、單片機(jī)拓展部分及串行通信接口部分(包括傳感器和藍(lán)牙部分)組成,如圖1所示。</p><p>　　圖

9、1 設(shè)備的硬件結(jié)構(gòu)示意圖</p><p>　　2.2 電源模塊部分設(shè)計</p><p>　　本文在設(shè)計該設(shè)備的時候,考慮到藍(lán)牙接入設(shè)備的可移動性,電源部分采用有源供電和電池供電兩種方式,電壓適配器采用普通的直流供電輸入范圍在3.7～7V之間,電池則采用普通的Li電池。因此本文采用了MAX1555來實現(xiàn)電池充電功能,該芯片具有兩種充電模式,這里用的是交流適配器供電模式,該芯片不管在有沒有電池

10、的情況下都能提供標(biāo)準(zhǔn)的4.2V電壓。同時采用MAX8881芯片將4.2V電壓轉(zhuǎn)換為標(biāo)準(zhǔn)的3.3V,采用MAX1615芯片將4.2V電壓轉(zhuǎn)換為標(biāo)準(zhǔn)的5V,從而給芯片供電;MAX8881及MAX1615給負(fù)載提供的總共是230mA的電流,而交流適配器充電電流在350mA左右,系統(tǒng)平均負(fù)載電流小于充電電流,電池在使用的同時仍然會被充電。為了增強(qiáng)設(shè)備的電源抗干擾能力,設(shè)計時在每級電源的前后級都加上濾波電路來減少外部干擾和前級電源的影響。電路設(shè)計

11、如圖2所示。</p><p>　　圖2 電源模塊電路原理圖</p><p>　　2.3 單片機(jī)拓展部分電路設(shè)計</p><p>　　晶振時鐘電路,本文設(shè)計的是由外部電路提供,采用晶體振蕩器和兩個負(fù)載電容,電容的大小取決于晶體的頻率和輸入阻抗等參數(shù)。JTAG接口電路:C8051F020在進(jìn)行調(diào)試或下</p><p>　　載時支持在線操作,所用的

12、下載調(diào)試口為通用的10針標(biāo)準(zhǔn)JTAG接口,此接口可以與電腦中的并性數(shù)據(jù)接口連接通過JTAG和并口建立測試設(shè)備與電腦中與開發(fā)環(huán)境的連接。JTAG口在線調(diào)試支持?jǐn)帱c(diǎn)調(diào)試,支持寄存器和內(nèi)存值顯示等一系列先進(jìn)的調(diào)試方法,大大方便了用戶的軟件調(diào)試和代碼下載工作。在進(jìn)行JTAG硬件原理圖設(shè)計的時候,設(shè)計方法按照通用的JTAG連接方法,其中TDI,TDO為JTAG的數(shù)據(jù)輸入、輸出線,TCK為時鐘脈沖端口,TMS為模式選擇端口。傳感器部分設(shè)計:本文采用

13、的傳感器是韓國SYHITECH公司的DSM501粉塵傳感器。該產(chǎn)品的主要特點(diǎn)有:采用粒子計數(shù)原理;靈敏度高,可檢測直徑1?m以上的粉塵粒子;檢測模式多樣,檢測粒子最小直徑的大小可調(diào);內(nèi)置加熱器可實現(xiàn)自動吸入空氣;尺寸小,重量輕,易安裝等。值得說明的是,器件管腳中,輸出腳Vout2為普通輸出腳位,靈敏度已預(yù)設(shè)定,最小粒子檢出能力為1?m;輸出腳Vout1為可調(diào)輸出腳位,靈敏度可通過控制腳來調(diào)整,默認(rèn)為Vout2的2.5倍,即最小粒子檢出能

14、力為2.5?m;控制腳:通過在此腳與GND之間加一個電阻可調(diào)整Vout1的最小粒子檢出水平,調(diào)整</p><p>　　2.4　藍(lán)牙電路設(shè)計</p><p>　　藍(lán)牙接入設(shè)備選用以Bluecore02為內(nèi)核的藍(lán)牙芯片,型號:BCM-05,此藍(lán)牙芯片體積小,功耗低,滿足藍(lán)牙1.1規(guī)范,提供了多種通信接口,如USB口、UART口、I2C口以及語音接口。其主要參數(shù)為:(1)通用串口(UART)波特

15、率為38400bps;(2)工作電壓為3.3V。</p><p>　　在電路設(shè)計時,C8051F020微處理器的串行口與藍(lán)牙芯片的UART口相連接,通過串口實現(xiàn)藍(lán)牙模塊的初始化及數(shù)據(jù)通信。對于藍(lán)牙電路部分,需要特別注意的是對藍(lán)牙芯片的供電電壓不能正負(fù)極顛倒,否則容易燒毀藍(lán)牙芯片。</p><p>　　3 驅(qū)動設(shè)計及軟件架構(gòu)[2-4]</p><p>　　該設(shè)備是通過

16、UART口來開發(fā)藍(lán)牙無線通信的相關(guān)應(yīng)用,而UART口提供到HCI傳輸層的物理連接是高層與物理模塊進(jìn)行通信的通道,所以藍(lán)牙接口驅(qū)動實際上就是解決藍(lán)牙串行接口(UART)驅(qū)動問題。UART口驅(qū)動程序主要包含C8051F020微處理器的串口(與藍(lán)牙的UART相接)初始化、藍(lán)牙通信參數(shù)設(shè)定、HCI指令封裝、數(shù)據(jù)信息處理等部分,主要函數(shù)功能描述如下:</p><p>　　(1)串行口初始化函數(shù),主要設(shè)定其串口波特率為38,

17、400bps,數(shù)據(jù)格式為一個起始位、8個數(shù)據(jù)位、1個停止位,同時對串口作相應(yīng)的處理;</p><p>　　(2)藍(lán)牙數(shù)據(jù)參數(shù)設(shè)定函數(shù),此函數(shù)主要完成藍(lán)牙模塊初始化以及藍(lán)牙數(shù)據(jù)格式的打包;</p><p>　　(3)數(shù)據(jù)信息處理函數(shù),此函數(shù)主要實現(xiàn)藍(lán)牙初始化時返回數(shù)據(jù)的處理,通過判斷這些返回的信息來確定藍(lán)牙模塊的狀態(tài);</p><p>　　(4)串口讀寫數(shù)據(jù)函數(shù),此函

18、數(shù)就是串口發(fā)送和接收數(shù)據(jù)的實現(xiàn)。粉塵檢測器通過普通IO口和CPU進(jìn)行數(shù)據(jù)交換。</p><p><b>　　相關(guān)的軟件代碼為</b></p><p>　　voidmain()</p><p><b>　　{</b></p><p>　　init-uart();//初始化uart接口,驅(qū)動藍(lán)牙模塊&l

19、t;/p><p>　　init-device();//初始化粉塵檢測器,周期性獲取</p><p><b>　　設(shè)備參數(shù)</b></p><p>　　task-AP-Receive();//接收來自藍(lán)牙接入點(diǎn)的數(shù)</p><p><b>　　據(jù)并更新指令</b></p><p>

20、　　task-device();//獲取粉塵檢測器的設(shè)備參數(shù)</p><p>　　task-AP-Send();//發(fā)送采集的數(shù)據(jù)給藍(lán)牙接入</p><p><b>　　點(diǎn)</b></p><p><b>　　}</b></p><p><b>　　4　結(jié)束語</b></

21、p><p>　　在工業(yè)監(jiān)控系統(tǒng)中,因為無線網(wǎng)絡(luò)可以提供更大的靈活性、流動性,省去了花在綜合布線上的費(fèi)用和精力,而且它更適應(yīng)于工業(yè)現(xiàn)場環(huán)境下的通訊圖3　藍(lán)牙粉塵檢測器工作流程圖</p><p>　　特點(diǎn),同時隨著無線網(wǎng)絡(luò)技術(shù)的進(jìn)一步發(fā)展,也必將大大促進(jìn)藍(lán)牙在工業(yè)監(jiān)控系統(tǒng)中的應(yīng)用進(jìn)程。本設(shè)計采用新華龍的C8051F020單片機(jī)開發(fā)了符合藍(lán)牙標(biāo)準(zhǔn)的粉塵檢測設(shè)備,在實驗中具有良好的實際效果。該設(shè)備根據(jù)

22、實際要求還可以將藍(lán)牙模塊替換為符合串口接口的802.11b模塊和ZigBee模塊,實現(xiàn)其他工業(yè)監(jiān)控領(lǐng)域粉塵檢測設(shè)備的硬件設(shè)計。因此,該設(shè)計的實現(xiàn)在家庭自動化(網(wǎng)絡(luò)家電,家庭各種電器控制),智能大廈及樓宇控制,工業(yè)現(xiàn)場設(shè)備監(jiān)控等領(lǐng)域?qū)崿F(xiàn)通信具有一定應(yīng)用價值。</p><p><b>　　參考文獻(xiàn)</b></p><p>　　[1] 桑楠.嵌入式系統(tǒng)原理及應(yīng)用開發(fā)技術(shù)[M

23、].北京:北京航天航空大學(xué)出版社,2002.</p><p>　　[2] 潘琢金譯.C8051F020數(shù)據(jù)手冊[M].北京:北京航天航空大學(xué)出版社,2004.</p><p>　　[3] 譚浩強(qiáng).C程序設(shè)計[M].3版.北京:清華大學(xué)出版社,2005.</p><p>　　[4] 許鐵軍.嵌入式硬件設(shè)計[M].北京:中國電力出版社,2007.</p>

24、<p>　　Bluetooth technology application in industrial control system</p><p>　　Abstract：this paper introduces a short-range wireless communication technology, bluetooth in industrial control system applic

25、ation. Using the new hualong company C8051F020 and the first generation of bluetooth module chip BCM - 05, design a bluetooth air and dust detector, bluetooth access devices used to build a set of industrial control area

26、 ,The air dust detection system of the bluetooth is given, and the hardware design and dust detector of software system framework.</p><p>　　Keywords: Bluetooth,Dust sensor,C8051F020</p><p>　　Lea

27、d speech</p><p>　　At present, bluetooth technology has greatly improved. In the local scope, blueTooth communication with reliability, safety and fault tolerant ability, etc. These advantages make bluetooth

28、in civil market application is also more To the broader, cell phone peripheral accessories is a typical and mature Application. In harsh environment, industrial site equipment has the wiring is difficult And maintenance

29、convenience, the disadvantages such as bluetooth technology applied to these Industrial fie</p><p>　　1 chip choice and characteristic introduction </p><p>　　At present, the embedded system chip

30、is numerous, mainly has 51 series, ARM series and DSP series. They now more and more replaced Former trend, but considering the author school mainly in 51 series core Slice the teaching, have done development, and at pre

31、sent there are still many city C51 series field, and therefore this paper chip choose C51 series. New hualong company produce C8051F020 C51 series is the film with a is wider A paragraph, the chip main characteristics ar

32、e: high speed, assembly</p><p>　　2 the system hardware design [1-2]</p><p>　　2.1 system hardware structure </p><p>　　This system hardware structure is simple, mainly by power suppl

33、y parts, SCM development section and serial communication interface part (including sensors And bluetooth part) composition, as shown in figure 1 below. </p><p>　　2.2 power supply module parts design </p&

34、gt;<p>　　Based on the design of the equipment, considering the bluetooth access asher Prepare the mobility of the active power supply, power part adopts and batteries Two ways and voltage adapter using common dc s

35、upply input is the norm Around 3.7 ~ 7V between, battery is used ordinary Li batteries. because This paper USES MAX1555 to realize the battery function, this Chip has two kinds of charging mode, here is used for ac adapt

36、er electric mode, the chip no matter the circumstances in any battery can ca</p><p>　　2.3 microcontroller expand part circuit design </p><p>　　Crystals, this article designs a clock circuit by a

37、n external circuit is provided, Adopt crystal oscillator and two load capacitance, capacitance size opinion In crystal frequency and input impedance parameters. C8051F020 JTAG interface circuit: debugging or in Support o

38、nline operation, carrying the download used for general 10 debugging mouth Needle JTAG interface, the interface standard with in the computer and sex can be counted According to interface connection through establishing

39、testing e</p><p>　　2.4 bluetooth circuit design </p><p>　　Bluetooth access to Bluecore02 selection of equipment for the kernel's blue Tooth chip, type: this - 05 BCM bluetooth chip small vol

40、ume, power consumption Low, meet bluetooth 1.1 specification, offers a variety of communication interface, such as </p><p>　　USB port, UART and voice mouth, the I2C mouth the interface. Its main Parameters i

41、s: (1) universal serial (UART) baud rate for 38400 BPS; (2) working voltage is 3.3 V. In the circuit design, the serial port C8051F020 microprocessor And bluetooth chip is connected to the UART through serial mouth reali

42、ze blueTooth module initialization and data communications. For bluetooth circuit part, Need special attention to bluetooth chip is the power supply voltage not positive Negative topsy-turvy, otherw</p><p>　

43、　3 drive design and software architecture [2-4] </p><p>　　This equipment is developed by UART bluetooth wireless communication mouth Related application, and provide to HCI mouth UART transport layer things

44、Richard connection with physical module is top communication channels, so blueTooth interface drive is actually solve bluetooth serial interface (UART) drive problems. UART driver includes mouth C8051F020 microprocessor

45、with the UART serial port (bluetooth in reality Connect) initialization, bluetooth communication parameter setting, HCI instruction</p><p>　　(1) a serial port initialization function, main set the serial por

46、t</p><p>　　Rate for 38,400 BPS, data format for a starting position, eight data A, one stop bits, and makes the corresponding processing in serial;</p><p>　　(2) bluetooth data parameter setting

47、function, the function mainly completes Bluetooth module initialization and the bluetooth data format of packing;</p><p>　　(3) data information processing function, the function mainly realizes bluetooth Ini

48、tialize return data processing, by judging these returned letter Interest to determine the state of bluetooth module;</p><p>　　(4) serial reading and writing data function, the function is a serial port to s

49、end and receiving data realization. The dust detector software flowchart of fig.03 shows, dust</p><p>　　detector by ordinary IO mouth and CPU for data exchange.</p><p>　　Relevant software code f

50、or</p><p>　　Voidmain ()</p><p><b>　　{</b></p><p>　　Init - uart (); / / initialization uart interface, drive bluetooth module</p><p>　　Init - device (); / /

51、initialization dust detector, periodic acquisition</p><p>　　Equipment parameters</p><p>　　Time - AP - Receive (); / / receiving the number from bluetooth access point</p><p>　　Accor

52、ding to and updates the instructions</p><p>　　Time - device (); / / gain. The parameters of the equipment of dust detector</p><p>　　Time - AP - Send (); / / send the data to bluetooth access<

53、/p><p><b>　　point</b></p><p><b>　　}</b></p><p>　　4 conclusion</p><p>　　In industrial control systems, because the wireless network can provide more

54、 big flexibility, liquidity, tell the flowers of the integrated wiring fee use and energy, and it is more suitable for industrial site environment of communication Figure 3 bluetooth dust detector work flowchart features

55、, at the same time as the further development of wireless network technology, bluetooth will greatly promote the application in industrial monitoring system process. this design of C8051F020 SCM adopt new</p><

56、p>　　References: </p><p>　　[1]. SangNan principle and application of the embedded system developing technology [M].beijing: north Beijing aerospace university press, 2002. </p><p>　　[2]. JinYi

57、 PanZhuo C8051F020 data manual [M].beijing: Beijing aerospace Aviation university press, 2004. </p><p>　　[3]. TanHaoJiang C program design 3 edition [j]. Beijing: tsinghua university press Clubs, 2005. </