传感器外文翻译外文文献英文文献分布是温度传感器

1、Distributed Temperature SensorIn the human living environment, temperature playing an extremely important role No matter where you live, en gaged in any work, ever-prese nt dealt with temperature un der. Si nee the 18th cen tury, in dustry since the in dustrial revoluti on to whether can master send

2、 exhibiti on has the absolute temperature touch. In metallurgy, steel, petrochemical, cement, glass, medicine industry and so on, can say almost eighty perce nt of in dustrial departme nts have to con sider the factors with temperature. Temperature for in dustrial so importa nt, thus promoti ng the

3、developme nt of the temperature sen sor.Major gen eral through three sen sor developme nt phase: an alog in tegrated temperature sen sor. The sen sor is take n with silic on semic on ductor i ntegrated workma nship, therefore also called silicon sensor or monolithic integrated temperature sensor. Su

4、ch sensing instruments have single fun ctio n (only measuri ng temperature), temperature measureme nt error is smaller, price low, fast response, the transmission distanee, small volume, micro-consumption electronic etc, suitable for long dista nee measureme nt temperature, temperature con trol, do

5、not n eed to un dertake non li near calibrati on, peripheral circuit is simple. It is curre ntly the most com mon applicati on at home and abroad, an integrated sensor。Typical products have AD590 AD592, TMP17, LM135, etc.jA nalog in tegrated temperature con troller. An alog in tegrated temperature c

6、on troller mainly in clude temperature con trol switch, programmable temperature con troller, a typical product have LM56, AD22105 and MAX6509. Some in crease stre ngth type in tegrated temperature con troller (for example TC652/653) also contains the A/D conv erter and cure good seque nee, this pro

7、cess with the intelligent temperature sensor some similarities. But it is not its system, work by micro processing device control, this is the main difference between. Intelligent temperature sensor. in tellige nt temperature sen sor (also called digital temperature degrees sensor) is in the mid 199

8、0s laun ch. It is microelectr onics tech no logy, computer tech no logy and the dyn amic test ing tech no logy (ATE) crystallizatio n. In tellige nt temperature sen sor i nternal con tai n temperature sen sor, A/D con verter, sig nal processor, memory (or registers) and in terface circuit. Some prod

9、ucts still take multiplexer, central control system device (CPU), random access memory (RAM) and read only memory (ROM). Intelligent temperature sensor is characteristic of temperature data and releva nt can output the temperature con trol of the qua ntity, adaptatio n various micro con troller (MCU

10、);The developme nt trend of the temperature sen sor. I n the 21st cen tury, the temperature sen sor is headed in high precision, multi-function, bus, standardization, high reliability and safety, developme nt of virtual sen sor and n etwork sen sor, research mono lithic temperature measuri ng system

11、 and other high-tech direct ion develop rapidly. Sen sors in the applicati on temperature controlling system. Current market exists mainly single point and more two temperature measureme nt. For sin gle point temperature foun dme nt in strume nt, mainly adopts the traditi onal an alog in tegrated te

12、mperature sen sor, which heat resista nee, thermocouple sen sorsmeasuri ng accuracy, high measureme nt ran ge, and got the gen eral applicati on. This product is temperature measuring range C 200 mostly between 800 C , resolution 12th, and least distinguishable temperature in 0.001 0.01 between. Cab

13、in LED display module, shows ranging from 4 to 16. Some in strume nts also has memory function, can store several hun dred to a few thousa nd sets of data. This in strume nt can be very good meet a sin gle user sin gle-po int measureme nt n eeds. More temperature measurement, relative and single poi

14、nt measurement precision has certain gap, although realized the multi-channel temperature measurement and control, but the price is expe nsive. In view of the prese nt market situatio n, proposed this topic can satisfy requireme nts, scalable and cost-effective sin gle-chip multi-cha nnel temperatur

15、e measuri ng system. Through the first temperature sensor DS18B20 acquisition, and then through the C51 SCM processing and displayed on the digital tube, can be collected in door or a gree nhouse around in differe nt locations of the temperature, with four digital tube to display. The first digital

16、pipe display acquisition is which way, which channel. Three digital pipe display after the acquisition channel by temperature, accurate to 0.1 degrees.AT89C51 is a 4K bytes FLASH Memory (Erasable Programmable and FPEROM - FLASH for the campaigns with) low voltage, high-performanee CMOS eight micropr

17、ocessors, commo nly known as the microc on troller. AT89C2051 is a 2K bytes with flash memory can be erased programmable read-only memory , SCM can erase read-only memory can be repeated erased 1000 times. This device adopts ATMEL high-de nsity non-v olatile memory manu facturi ng tech no logy manu

18、facturi ng, and in dustrial sta ndard MCS - 51 in structi on set and output tube compatible. Due to the multifunctional 8 bits CPU and will be flashing on single chip comb in ati on of memory, ATMEL AT89C51 is a kind of high efficie nt micro con troller, AT89C2051 is a streamlined version. AT89C 51m

19、icrocontroller as many embedded control system .Arra nge appeara nee and pin as show n in figure 1-2 show nFL1 PE.l PL J Pi.4PL5 P(.fiPI, 7RST (MDI 0| (TXPIP3.1 (rvrpj.2| ffWDPi 3 no)?3.4； HDPx 51 佝bPM b 那曲J XTAUj XTALljIND：AT8SC51fV(YjpW M阿 |F0. 1/(ADD I P攸 2/ (A2) | HL dOW |4/(AO4) hs/oiH |Puht;(A

20、yt)I 呱 7/ MEF/vppME/PftOC2JPSES團 Pl+T/dH打 Pi. 6/(AH) TP2. 5/UtM 3P2,-* IA12)3 PJ. A (Al 11 2 U：(Jl7 PL :门徇 I1P2. 0/AT89C51的引舶排刘1-2 AT89C51 pins figureMajor features:and MCS - 51 compatible4K bytes programmable FLASH memorylife: 1000 write/wipe cycledata retention time: 10 yearsthe static job: 0Hz -

21、24MHzlevel 3 program memory lock128 x 8 bits internal RAM32 programmable I/O linestwo 16 timer5 in terrupt sourceprogrammable serial cha nn elslow power con sumpti on of idle and power lost modepiece in side oscillator and clock circuitTube feet expla ins:VCC: power supply voltage.GND: grou nded.P0

22、Mouth: P0 mouth a eight leak level two-way I/O mouth open, every foot can absorb8TTL gate curre nt. When the pipe mouth P0 feet first write 1, defi ned as high resista nce in put.第3页P0 can be used for external program data storage, it can be defined as the eighth data/address. In FIASH programming,

23、P0 mouth as the source-code input port, when FIASH check, the source-code P0 output, when P0 external must be pulled.P1 mouth: mouth is an internal P1 provide pull-up resistors 8-bit two-way I/O mouth, P1 mouth buffer can receive 4TTL gate current output. P1 mouth tube feet, was then write 1 for hig

24、h, pull up inside can be used as input, P1 mouth be external pull down for low electricity at ordinary times, will output current, this is due to internal pull up sake. In FLASH programming and calibration, P1 mouth as eighth address to receive.P2 mouth: for an internal P2 mouth on the 8-bit pull-up

25、 resistors two-way I/O port, P2 mouth to receive, the output buffer 4 TTL gate current, when P2 mouth is written 1, its tube feet are internal pull-up resistors, and push as input. And so as the input, P2 mouth feet are external down tube, will output current. This is due to internal pull up sake. P

26、2 mouth when used external program memory or 16 address external data memory access,P2 mouth high output address eight. In a given address 1, it using internal and external 8 address advantage, when for reading and writing data memory, P2 when the special function registers mouth output of content.

27、P2 mouth in FLASH programming and the calibration eight address when receiving high signal and control signals.P3 mouth: P3 mouth pipe is 8 feet with internal pull-up resistors two-way I/O port, may receive four TTL gate current out put. When P3 mouth writing 1, they are internal and high level, and

28、 used as input. As input, due to external drop-down for low level, P3 mouth will output current (ILL) this is due to pull ups sake.RST: reset input. When oscillator reset device to keep RST feet high level two machine cycle time.ALE/PROG: when access external storage, address latch allows the output

29、 level of the position for latch address byte. During the FLASH programming, this pin for input programming pulse. In peacetime, the ALE with a constant frequency cycle output is the pulse signal, the frequencies of the 1/6 oscillator frequency. So it can be used against external output pulse or use

30、d for timing purpose. However it is: whenever used for external data storage, will skip a ALE pulse. If you want to ban the ALE output can be in SFR8EH address for 0. At this time, only by performing the ALE MOVX, MOVC instruction is ALE to take effect. In addition, the pins were slightly up. If mic

31、roprocessor in external execution ALE, buy a ban is invalid./ PSEN: external program memory choice of communication number. By external program memory in during the instruction fetch, each machine cycle twice /PSEN effective. But on a visit 第4 页to external data storage, the two effective/PSEN signal

32、s will not appear./ EA/VPP: when/EA keep low levels in this period, the external program memory (0000H - FFFFH), whether have internal program memory. Note encryption method 1, / EA will RESET for internal focus; When/EA end keep high electricity at ordinary times, internal program memory here. Duri

33、ng the FLASH programming, this pin is also used VPP 12V programming power (on).XTAL1: the inverting oscillator amplifier input and input to the internal clock operating circuit.XTAL2: from reverse oscillator output.Keil Vision 2 is about the 8051 series MCU Keil company of development tools can be u

34、sed to compile C source code, assemblers source program, connection and relocation target files and libraries, gen built: documents, debugging purposes procedure, etc, it is a kind of integration of document management compile environment. It integrates document editing processing, compile connectio

35、n, project management, window, tools cited and software copy true debugging and other functions, is pretty powerful development tool. In keil inside compile, the procedures required commissioning第7 页分布是温度传感器在人类的生活环境中，温度扮演着极其重要的角色。无论你生活在哪里， 从事什么工作，无时无刻不在与温度打着交道。自 18 世纪工业革命以来， 工业发 展对是否能掌握温度有着绝对的联系。在冶金

36、、钢铁、石化、水泥、 玻璃、医药 等等行业，可以说几乎 %80 的工业部门都不得不考虑着温度的 因素。 温度对于工业如此重要，由此推进了温度传感器的发展。温度传感器 的发展传感器主要大体经过了三个发展阶段：模拟集成温度传感器。该传感器是 采 用硅半导体集成工艺制成，因此亦称硅传感器或单片集成温度传感器。此 种传感 器具有功能单一 (仅测量温度 )、 测温误差小、 价格低、 响应速度快、 传输距离远、 体积小、微功耗等，适合远距离测温、控温，不需要进行非线 性校准，外围电路 简单。它是目前在国内外应用最为普遍的一种集成传感器， 典型产品有 AD590、 AD592 、TMP17、LM135 等；

37、模拟集成温度控制器。 模拟集成温度控制器主要包括 温控开关、可编程温度控制器，典型产品有 LM56 、AD22105 和 MAX6509 。某些增强型集成温度控制器 (例如 TC652/653) 中还包含了 A/D 转换器以及固化好的程 序，这与智能温度传感器有某些相 似之处。但它自成系统，工作时并不受微处理 器的控制，这是二者的主要区 别；智能温度传感器。 能温度传感器 (亦称数字温 度传感器 )是在 20 世纪 90 年代中期问世的。它是微电子技术、计算机技术和自 动测试技术 (ATE) 的结 晶。智能温度传感器内部都包含温度传感器、 A/D 转换器、 信号处理器、存 储器(或寄存器)和接

38、口电路。有的产品还带多路选择器、中央控制器(CPU)、随机存取存储器 (RAM) 和只读存储器 (ROM) 。智能温度传感器的特点 是能输 出温度数据及相关的温度控制量，适配各种微控制器 (MCU) ；并且它是在硬 件的基础上通过软件来实现测试功能的， 其智能化程度也取决于软件的开发 水平。 温度传感器的发展趋势。 进入 21 世纪后，温度传感器正朝着高精 度、多功能、总线标准化、高可靠 性及安全性、开发虚拟传感器和网络传感 器、研制单片测温系统等高科技的方向 迅速发展。 传感器在温度测控系统 中的应用。目前市场主要存在单点和多点两种温度测量仪表。对于单点温测仪表，主 要 采用传统的模拟集成温

39、度传感器，其中又以热电阻、热电偶等传感器的测 量精度 高，测量范围大，而得到了普遍的应用。此种产品测温范围大都在 -200C 800C 之间，分辨率 12位，最小分辨温度在 0.0010.01之间。自 带 LED 显示模块，显示 4 位到 16 位不等。有的仪表还具有存储功能，可 存储几百到几千组数据。该类仪表可很好的满足单个用户单点测量的需要。 多点温度测量仪表，相对与单点 的测量精度有一定的差距，虽然实现了多路 温度的测控，但价格昂贵。 针对目前市场的现状，本课题提出了一种可满足 要求、可扩展的并且性价比 高的单片机多路测温系统。通过温度传感器 DS18B20 采集，然后通过 C51 单片

40、机处理并在数码管上显示，可以采集室 内或花房中四处不同位置的温度，用四个数码管来显示。第一个数码管显示 所采集的是哪一路，哪个通道。后三个数码管显示所采集通道的温度值，精 确到 0.1 度。AT89C51 是一种带 4K 字节 FLASH 存储器（FPEROM Flash Programmable and Erasable Read Only Memory的低电压、高性能 CMOS 8位微处理器，俗 称单片机。 AT89C2051 是一种带 2K 字节闪存可编程可擦除只读存储器的单 片机。单片机的可擦除只读存储器可以反复擦除 1000次。该器件采用 ATMEL 高密度非易失存储器制造技术制造，

41、与工业标准的 MCS-51 指令集和输出管 脚相兼容。由于将多功能 8 位 CPU 和闪烁存储器组合在单个芯片中， ATMEL 的 AT89C51 是一种高效微控制器， AT89C2051 是它的一种精简版本。 AT89C51 单片机为很多嵌入式控制系统提供了一种灵活性高且价廉的方案。 外形及引脚排列如图 “图 1-2”所示PL Cl 肥IPE.2I PX Pl.4|PL5|Pl.blP|.?|RST| tRXD)?3+0| (TXBIP3. | (Knhp 前 fEVHPJ. 3ATB9C5)(TQ)PM 怛 CHP3*5 園 何必鹿 iTUiPl 7 _.mi,涯XTALjQI IMJ匹r

42、rEaEaGaElEaEllaaKllElEnJElEllnl!V(TPtth O/CAD血Pft.p 恢 2/txmPiL 3/ADJ) Pl J / UD4) 触寳如 I POl / iXMMl 7/ UD7 U/vpp ILE/PRKP2+T/(AI5) P2.6/UH) P2.5/ (ABIP2,4tAJ2)PL V (AID2, 27 (A： 01P2. A “和P2. 0/ (A8J第10页AT89C51的引脾排列图1-2 AT89C51引脚图主要特性：与MCS-51兼容4K字节可编程FLASH存储器寿命：1000写/擦循环数据保留时间：10年全静态工作：0HZ-24MHZ三级程序存储器锁定128X8位内部RAM32可编程I/O线两个16位定时器/计数器5个中断源可编程串行通道低功耗的闲置和掉电模式片内振荡器和时钟电路管脚说明:VCC :供电电压。GND:接地。P0 口： P0 口为一个8位漏级开路双向I/O 口，每脚可吸收8TTL门电流。 当P