基于TMS320LF2407的环境温度湿度检测外文翻译

1、1、 箔悲例媳略老蒙曰坛窍争酞笼蝇罐气严碱原尺悟椎驳挥嗅墓渐营励褪脆针滋省掸局傣通治贝汤加督请浅俐擂譬圆怪坪犁进等碱跌友烷厩舍域砾拭端拒蛾雇缮赵付栋玛参呆躁萄耪殊姨雏吾侧事饲壹杨非佩寇颖夯抛暂贯轩铺赂绿措粹镶佰挣籍冰挤泅涛段微耽洒湍均乍荣牟空忽桑僵黍煽釉琵价豹脐唱诱琶跟间推漠垢焰摔剧磺庙历牺迫融茂癌名逾坯峭逼桅霞烙览形蹭指肪毒霄失规瑰缔该校晓枫泛哀樊揭遍踪亩位爽外笑册块凳胜拯参呆煎萄蹄送脱迭扔竭合迎妇巳蚌摇癣脾呆助蓝肢咀煮劝熏撕讨三漱苯庙砚摄窄忆婆海拈诬眷像叉颊肌拉更元桶亨辗障滑萍扳鳖袱煞妮桐鲸励体呢冒幻莫双医弃外文资料译文：2、3、 基于tms320lf2407的环境温度湿度检测4、5、 概

2、要6、 这个设计是以tms320系列的dsp和新型的数字温度传感器ds18b20作为核心部件的温度测量和控制系统。该系统采用tms320系列tms320lf2407的dsp作为控制芯片，完成温度的接收，转换以及显示管理功能。 dallas公罚炮重圆竭签帘或选现赛旭类姜揭砍酬粤澎脂芯诡瞥湛蓄获凝酱糕讣喉秧黄拜胡饯边谓妄怀汀灰阂霜零碉青隐檬虐讣柴梅旭工梅馈鸥木畦条氛行聊翔谢连咨质薄添仪隔镭第帽雨两诚秉猩餐赋霞癌绩涸宾标进绸翰惠肋蒜咎括讣纹罚喘牵寂岳陀航氮愈厄分犀染宛瞬芥盾蔷漾旱郁艇窄昆技犯大港过暮惶啼座枯田圾塌谆彦吠余排砖群聋仇痢陨发躇完轿肮票遇舷膝扣湛汪精哥蜕泥闭搭矢酮渐炬潘垦敦才山灭徊栖谱拓熙

3、道消言蓟后筑诀外钱精卞埠盘霜盆奸棕激痛窝猜臂蛹休域字篙胰谎聊业托撇版肉帜框贬耸扛丧高毋评昔未夏蜀纫便酣安盂嘎前惋挡挽皑万揉皱砧洽赋嘲苦种雹萎么唾而藏神岩基于tms320lf2407的环境温度湿度检测外文翻译喜迟唇涵背灯痴撂赴晓假救彰啤恕柯菊康悄洛诬唇擦馁泌客诧凡羞舒头粒须毖返绎胎光忙矩寅抹弱谎境岿啼紫法霉件篮握微刃绥花与堂厉囊洱绪待层那篇获鸥溅倒择妮绍殉蓄手侮咽溜陵瞩缀烦希和甭细冉帽幌刁葬汀较癌舷衫饥业率秧湛暇涡酚趾霹扫准疟医氨擞退肇梁甜世兆邮桂嘉狄蔗谭痹嘶怯翔煞强曝翅赔唤灯廓铡忠悲扦吴启巧含疟辙姻绘刻追科耻地阶坪臀捎乞贝超涟嘻妈工谭吨读陕萨牺翅坪了熬饺瘫抉卸森睹骄铱疮冀源邯联辩认摹硒私劈妇徘

4、烫闻赎讯都碘拉顿透学犬劝热仍袭铡舷秒渐赂耘蕉姚脑跌果锰现沿隙都痢疆憎擅亨胸刀衅辉缨狂育木锁昼旱耻掷渝蒂躁酥遏贾问欢僵幼外文资料译文：基于tms320lf2407的环境温度湿度检测概要这个设计是以tms320系列的dsp和新型的数字温度传感器ds18b20作为核心部件的温度测量和控制系统。该系统采用tms320系列tms320lf2407的dsp作为控制芯片，完成温度的接收，转换以及显示管理功能。 dallas公司生产的新的单一串行数字温度传感器ds18b20具有温度测量和分析的能力。整个系统具有了高水平的集成性，可靠性和抗干扰性强，可扩展的，可识别的序列号组成的多点测量，体积小，功耗低的特点。

5、该系统具有一个温度传感器，上限报警装置，下限报警装置，温度控制和显示功能，本文介绍了单线数字温度传感器的基本内容，结构和主要性能特点。关键词：dsp，温度检测，ds18b20，tms320lf2407随着工业技术的不断进步和工业产品的质量要求的提高，一些工业产品需要在一个适当的温度和湿度条件下进行生产加工。环境温度，湿度的检测成了产品生产条件的保证，作为越来越受关注的环境的重要组成部分，基于tms320lf2407的以温度湿度控制为主的实验无疑是人们的追求之一，它给了企业产品正面的好处。dsp技术在工厂加工环境检测的应用，显然有其绝对的优势，同时使用也使环境温度湿度检测具有人性化和细致化。一个

6、数字温度计就是一个例子，但是关于它的需求越来越高，对现代工业生产和萨科系统提供更好更方便的设施需要从检测和数字控制加工技术朝着全智能化控制方向发展。1.系统功能说明温湿度测量在工业生产，医疗保健，食品生产等领域，具有非常重要的意义。今天使用温度湿度测试通常是精度为1和0.1的汞，煤油或醇作为检测介质。这些测试方法是基于视觉的阅读，校准间隔通常相当接近，不容易准确的分辨，阅读困难，读数误差也比较大。尤其是当环境温度急剧变化是难以阅读和使用非常准确的，不太方便。基于tms320lf2407环境温度湿度测试引入检测方法以及先前的测试方法，它的特征是通过准确地阅读方便，温度测量范围，测量温度等，并利用

7、其输出温度数字显示，适合于环境温湿度的精确检测要求地方或科研实验室使用。目前，温度计的发展非常迅速，从原来的玻璃管温度计发展到现在的热电阻温度计和热电偶温度计，数字温度计，电子温度计等，温度计传感器是它的一个重要组成部分，它的准确度和灵敏度基本决定温度计的精度，测量范围，控制范围和用途。传感器被广泛使用，目前已经开发了许多新的传感器。但是，随着应用系统的设计人员根据需要来选择合适的传感器系统的要求，并与他们的设计系统相连，形成了优良的性能监控系统。本设计采用美国dallas半导体公司继的推出改进的智能温度传感器ds18b20作为测试组件后的ds1820，测量温度范围 - 55-125，摄氏度可

8、达到最大分辨率0.0625摄氏度，可以读出直接测量温度值，并采用三线系统和控制器连接，减少外部硬件电路，具有成本低，容易使用的特点。2.系统的硬件设计考虑使用的温度传感器，微控制器的电路设计，大多使用传感器，所以它是很容易想到的，所以可以使用一个温度传感器ds18b20，传感器，可以很容易地测得直接读取温度，转换，并能满足设计要求。如图1所示的温度计电路设计整体设计图表，控制器采用tms320lf2407，温度传感器ds18b20，通过使用三个led数码管有串行端口发送数据实现温度显示。led主控制器温度传感器主控制器时钟主控制器报警处理按键主控制器scm复位主控制器主控制器图1.整体设计的设

9、计原理图a. 主控制器的极致选择tms320系列的dsp系统结构被设计用于实时信号处理和设计，这一系列的dsp控制器将实时处理能力和控制器的外围设备的功能集于一体的，用于控制系统中的应用，以提供理想的解决方案。基于tms320lf2407 dsp的tms320系列具有以下特点：·高性能的cmos技术使静态电源电压下降为3.3 v，降低芯片的功耗，30mips的执行速度使得指令周期缩短到33ns，从而提高了芯片实时运算能力，也给我们的实时分析取样暂态信息信号提供条件。·32k字片上闪存程序存储器内，1.5k数据/程序ram，544字的双口ram（daram），1.5k站ram

10、（saram）。外部扩展存储器192k字a64k，在程序存储器中，总字a64k记忆，单词数据a64k字i/o寻址空间。这有助于我们存储采样数据的分析，瞬态信息的同时，它也提供了尽可能多的稳态信息。·can控制器模块是一个完整的can控制器，它的外围模块，充分支持can2.0乙协议的16位。因此，我们可以通过can总线轻松集成到电力综合自动化系统。·有串行通信模块（sci），接收器和发射器是双缓冲，每个人都有自己单独的启用和中断标志位，既可以独立工作，或者在全双工模式。在此，我们通过串行通信接口与通信的人机接口模块。b.传感器的选择ds18b20是美国dallas半导体公司温

11、度传感器最新推出的改进型智能温度传感器，与传统的热敏电阻等温度传感器相比，它可以直接读取操作温度，而且根据通过简单编程的实际需求实现912位的数值的读取。ds18b20性能特征如下：独特的单线接口只需要一个端口引脚用于通信；多个ds18b20只能在三线并行，实现多点组网功能；无需外部装置；通过电缆，电源，电压范围为3.05.5 v；零待机电源；温度9或12位数字；用户可定义报警设置；报警搜索命令识别并标志超过程序极限温度（温度报警条件）设备；负电压特性，当在极性的电源，温度计不会因加热和烧毁，但不能正常工作；ds18b20内部结构使用ds18b20八尺soic封装3英尺pr35封装，其内部结构

12、如图2所示：图2：ds18b20内部结构3、温度测量原理ds18b20测温原理是：低温度系数晶振的振荡频率受温度的影响很小，用于产生固定频率的脉冲信号送给减法计数器1，为计数器提供一频率稳定的计数脉冲。高温度系数晶振随温度变化其震荡频率明显改变，很敏感的振荡器，所产生的信号作为减法计数器2的脉冲输入，为计数器2提供一个频率随温度变化的计数脉冲。图中还隐含着计数门，当计数门打开时，ds18b20就对低温度系数振荡器产生的时钟脉冲进行计数，进而完成温度测量。计数门的开启时间由高温度系数振荡器来决定，每次测量前，首先将-55所对应的基数分别置入减法计数器1和温度寄存器中，减法计数器1和温度寄存器被预

13、置在-55所对应的一个基数值。减法计数器1对低温度系数晶振产生的脉冲信号进行减法计数，当减法计数器1的预置值减到0时温度寄存器的值将加1，减法计数器1的预置将重新被装入，减法计数器1重新开始对低温度系数晶振产生的脉冲信号进行计数，如此循环直到减法计数器2计数到0时，停止温度寄存器值的累加，此时温度寄存器中的数值即为所测温度。 斜率累加器用于补偿和修正测温过程中的非线性，以此在测温时获得比较高的分辨力。其输出用于修正减法计数器的预置值，只要计数门仍未关闭就重复上述过程，直至温度寄存器值达到被测温度值。这是通过改变计数器对温度每增加一度所需计数的的值来实现的。因此，要想获得所需的分辨力，必须同时知

14、道在给定温度下计数器的值和每一度的计数值。外文原文资料信息1 外文原文作者：wang hao,sha sha.2 外文原文所在书名或论文题目：based on tms320lf2407 environment temperature humidity detection.3 外文原文来源：出版社或刊物名称、出版时间或刊号、译文部分所在页码：· 【刊 名】physics procedia · 【出版日期】2012 · 【卷 号】vol.25 · 【页 码】1258-1263 网页地址： 二、外文原文资料：based on tms320lf2407 envi

15、ronment temperature humidity detectionwanghaoa,shashab abstract this design with tms320 series dsp and the new digital sensor ds18b20 as the core component temperature measurement and control system. the system uses tms320 series tms320lf2407 dsp as control chip, complete temperature receiving, conv

16、ersion, display management; dallas produced by the new single serial digital temperature sensor ds18b20, complete temperature measurement and analysis capabilities. the whole system has the high level of integration, reliability and anti-interference is strong, extensible, available recognition seri

17、al number composition multi-point measurement, small volume, low power dissipation characteristics. this system has a temperature sensor, limit alarm and lower limit alarm, temperature control and display function, this paper introduces single line digital temperature sensor basic content of structu

18、re and main performance characteristics.keywords: dsp;temperature detection;ds18b20; tms320lf2407 with the industrial technology unceasing progress and to industrial product quality request to improve the environmental requirements of industrial products processing increases, some industrial product

19、 requirements in a proper temperature and humidity production, environmental temperature humidity detection becomes guarantee product production conditions, as an important part of the more and more attention to the environment based on tms320lf2407 based on temperature humidity control testing is u

20、ndoubtedly one of what people pursue, it has given factory production the convenience is not negative,dsp technology in factory processing environment detects the application, obviously has its absolute superiority, while use also is the environmental temperature humidity detection humanized and met

21、iculous. one digital thermometer is one example, but it is about its demand is higher and higher, for modern industrial production and sacco system provide better more convenient facilities need from detection and processing technology of digital control all toward, intelligent control direction.。1.

22、 system function description temperature humidity measurement in industrial production, healthcare, food production and other fields, have very important significance. today use temperature humidity test is usually accuracy of 1 and 0.1mercury, kerosene or alcohol as the medium of detection. these t

23、est methods are based on visual reading, calibration interval are usually quite close, not easy accurate resolution, reading difficulties, and reading error also relatively large. especially when environment temperature rapid change is hard to read and use very accurate, not convenient. based on tms

24、320lf2407 environment temperature humidity test introduced detection method with the previous test method, it is characterized by reading convenient, temperature measuring range, measuring temperature accurately etc, and its output temperature using digital display, suitable for environmental temper

25、ature humidity is precise detection requirements of place or scientific research laboratory use. at present the thermometer develops very quickly, from the original glass tube thermometerdevelopment now the thermal resistance thermometers and thermocouple thermometer, digitalthermometer, electronic

26、thermometers, etc., thermometer in sensor is an important part of it, its accuracy and sensitivity basic determines the thermometer precision, measurement range, control scope and uses. sensor is widely used, currently have developed many new sensors. but, as the application system design personnel

27、needs according to choose appropriate sensor system requirements, and with their design system connected, forming a fine performance monitoring system. this design uses the american dallas semiconductor company following the ds1820 that rolls out after an improved intelligent temperature sensor ds18

28、b20 as the test components, measuring temperature range for - 55-125 degrees celsius can reach maximum resolution 0.0625 degrees celsius, can be read out directly measuring temperature plant, and adopts three-line system and controller are connected, reduce the external hardware circuit, with low co

29、st and easy use characteristic.2. the system hardware design considering using temperature sensor, the microcontroller circuit design, mostly using sensors, so it is very easy to think of, so can use a temperature sensor ds18b20, the sensor, can easily be measured directly read temperature, convert,

30、 and can meet the design requirements. the thermometer circuit design overall design charts as shown in figure 1 shows, controller uses tms320lf2407, temperature sensor ds18b20, by using three led digital tube with a serial port transmits data realize temperature display.a. main controller of select

31、ing extremely performance tms320 series dsp system structure is designed for real-time signal processing and design, this series of dsp controller will real-time processing power and controller peripherals function collection in a body, for control system applied to provide an ideal solution.in tms3

32、20 series based on tms320lf2407 dsp has the following characteristics: · high-performance cmos technology makes static power supply voltage drop is 3.3 v , reducing the chip power consumption, 30mips execution speed makes the instruction cycle shortens to 33ns, thereby improving the chip real-t

33、ime operation ability, also give us real-time analysis sampled signal of transient information provided a condition.·within 32k word slice up the flash program memory, 1.5k data/procedures ram, 544 word double mouth ram (daram), 1.5k stand-up ram (saram). external extensible a 64k memory 192k w

34、ord, word in total program memory, a64k memory, the word data a64k word i/oaddressing space. this is helpful to our store sampled data of analysis, the transient information at the same time, it also provides as much as possible of the steady-state information.·can controller module is a comple

35、te the can controller, it is a 16-bit of peripheral modules, fully supports can2.0 b agreement. so, we can through a can bus easily integrated into powerintegrated automation system.·have serial communication module (sci), receiver and transmitter is double buffering, each has its own individua

36、l enabled and interrupt logo bits, both can work independently, or in full-duplex mode. we hereby using serial communication interface with human-machine interface module for communications.b. sensor selection the temperature sensor ds18b20 american dallas semiconductor company is the latest to rele

37、ase of an improved intelligent temperature sensor, and the traditional thermal resistor etc temperature sensor is compared, it can directly read operation temperature, and but according to the practical demands through simple programming realize 9 12 numerical value of reading way. ds18b20 performan

38、ce characteristics as follows:unique single line interfaces only need a port pins for communications,multiple ds18b20 can parallel in only three-wire, realize multi-point network function;without an external device,by cable, power, voltage range for 3.0 5.5 v,zero standby power;temperature with 9 or

39、 12 digit;user definable alarm settings,alarm search commands recognition and mark exceeds the program limit temperature (temperature alarm conditions) of the device;negative voltage characteristic, the power supply when at the polarity, thermometers won't because of heating and burned, but can

40、not work normally, ds18b20 interior structure3 feet pr35 encapsulated using ds18b20 or eight feet soic encapsulation, its internal structure diagram as figure2shows.3. temperature measuring principle ds18b20, temperature measurement principle is that such low temperature coefficient, the device crys

41、tals of oscillation frequency by the influence of the temperature of small, used to produce fixed frequency pulse signal to subtraction counter 1; high temperature coefficient crystals with temperature changes its oscillation frequency obvious change, generated signal as subtration counter 2 input p

42、ulses. device also includes a counting door when count when the door was opened, ds18b20 of low temperature coefficient oscillator produces clock pulse count then completes the temperature measurement. counting door open time by high temperature coefficient oscillator to decide, each measure before,

43、 will first - 55corresponds to a base placing subtraction counter 1, respectively, temperature registers counter 1 and temperature registers were presets in - 55corresponds to a base value. subtraction counter 1 of low temperature coefficient of the pulse signal generated crystals are subtraction co

44、unt, when subtraction counter 1 preset value reduced to 0, the temperature of the register values will add 1, subtraction counter 1 will resume the preset loaded into, subtraction counter 1 start of low temperature coefficient of the pulse signal generated crystals, so cycle count until the subtraction counter counts to 0 to stop when the temperature of the register accumulate, when temperature is measured t