外文翻譯---嵌入式單片機(jī)溫度控制器設(shè)計

1、中文 中文 2460 字畢業(yè)設(shè)計（論文） 畢業(yè)設(shè)計（論文）——外文翻譯（原文） 外文翻譯（原文） AN EMBEDDED SINGLE CHIPTEMPERATURECONTROLLER DESIGNJ. Jayapandian and Usha Rani RaviDesign Development a mixed array logic consists of analog,digital and digital commu

2、nication blocks within in it.The virtual instrument control program written in Labview ver.7.1,a graphical language,provides user friendly menu driven window based control panel,interacts with the single PSoC chip design

3、 for sensing and controlling the temperature.This simple cost effective embedded design finds potential application in laboratory as well as in industries.This deign can also be made as a standalone system without PC by

4、programming LED/ LCD display and key pad attachment modules in same PSoC chip.1. INTRODUCTIONThe advent of intelligent programmable embedded silicon designs provides the ability to implement any required hardware program

5、matically for the design automation in industries and laboratories.Recent trend in laboratory as well as in industrial automation designs uses minimal hardware and maximum support of software.The programmable embedded co

6、mponents and application software available in the market enables the designer for user friendly cost effective design solution for any system automation.Temperature controllers are playing vital role in industries and l

7、aboratories.To accurately control process temperature without extensive operator involvement,a temperature control system relies upon a controller,which accepts a temperature sensor such as a thermocouple or RTD as input

8、.It compares the actual temperature to the desired control temperature,or set point,and provides an output to a control element.The controller is one of the major parts of the entire control system,and the whole system s

9、hould be analyzed in selecting the proper controller.This paper describes a novel single chip temperature controller design with Cypress Micro systems Programmable System on Chip (PSoC).Virtual instrument control program

10、 written in Lab VIEW ver.7.1 interacts with the embedded PSoC design and senses and controls the temperature of furnace / load.2. PROGRAMMABLE SYSTEM ON CHIP (P Soc)While Sand inexpensive interface to sensors,andmor

11、e.Cypress’System-Chip(PSoC)architecture offers a flexible,economical solution for a wide variety of applications.This paper describes the design of a temperature controller on a single CY8C27143,8 pin PSoC chip.Ass how n

12、 in fig.1,it features four main areas:PSoC core,digital system,analog system,and resources including in/out ports. This architecture allows the user to create customize Alpheratz configurations that match the requirement

13、s of each individual application.The UAR Tinter face, coupled with configurable analog and digital peripherals makes the CY8C27143 truly for the control and data acquisition of process variables.These programs are easy t

14、o implement with graphic languages (G-language).The “G” language implements the data flow technique.The usage of “G” language provides easy interfacing with PCs under the Windows environment [2]. The “G” language provide

15、s built-in function libraries for a variety of application requirements as graphic palettes, which in turn supports the required DLL s for the functions to run under windows environment.Usually the “G” language VI progra

16、ms consist of two frames viz.,panel diagram and functional diagram.In the panel diagram,programmers can assign various controls and indicators (i.e., input and output variables).their requirements and in the functional d

17、iagram, the designers can implement the required.Fig. 2 : PSoC designer screen for single chip temperature controllerFunctions available as a function library in Lab.National Instruments version7.1 incorporates all the n

18、ecessary functions as ‘icons’ in its package.4. PSoC SINGLE CHIP TEMPERATURE CONTROLLER DESIGNFig.2 shows the PSoC designer screen for the embedded single chip temperature controller design project [1].Left side of the s

19、creen shows the settings of global resource and user module parameters along with pin connectivity.Middle portion of the screen shows the analog and digital blocks user module placement.Top portion of the screen shows th

20、e selected user modules for this project.Right side of the screen describes the pin connectivity configured in the design.In this novel single chip design,thermocouple (TC) signal has been amplified by a programmable gai

21、n amplifier (PGA) placed in the PSoC’s analog block.The amplified TC signal has been fed in to a 12 bit Analog-to digital(ADC) user module programmed in the PSoC chip, which includes both analog and digital blocks for it

22、s functionality by PSoC designer programming.The converted digital data of the TC signal has been fed to the UART user module for serial communication with Personal Computer.The UART user module placed in the chip,automa

23、tically gets placed in two digital blocks of PSoC chip,transmitter (TxD) and receiver (RxD) for PCs serial communication.A pulse width modulator (PWM),placed in the PSoC digital block,sets a serial pulse width modulated