|- 9.配套數據手冊 - 0 B|- 8.面包板接線軟件 - 0 B|- 7.物聯網實驗 - 0 B|- 6.圖形化編程 - 0 B|- 5.實驗接線圖 - 0 B|- 4.視頻教程 - 0 B|- 3.案例程序 - 0 B|- 2.開發環境 - 0 B|- 10.輔助軟件 - 0 B|- 1.學前先看 - 0 B|- CLB.ico - 17.00 kB|- Autorun.inf - 23 B
上傳時間： 2022-06-06
上傳用戶：
便攜式信號采集在機器健康診斷系統中有較高的應用價值。機器健康診斷的信號特點是包括低頻信號。本文研究是為了實現簡易而且低成本的低頻便攜式信號采集。以Microchip公司單片機PIC18F1320為核心設計信號采集電路，實現了信號的采集和保存。系統采用串行電可擦除芯片24LC32A保存數據，經過有線通信，信號數據由串行口通過MAX232芯片輸送到微型計算機接收和保存，最后繪制出信號波形。 微型計算機程序采用Visual Basic編程。研究成功采樣頻率為3 kHz的復雜信號，證明該方案符合設計要求。 Abstract: Portable signal acquisition is useful in machine health monitoring systems. The signal characteristics of machine health monitoring includes low frequency signals. The goal of this study is to realize simple, inexpensive and portable low frequency signal sampling. This paper provides the project of signal acquisition system design based on PIC18F1320 microcontroller manufactured by the Microchip Technology Incorporation to achieve signal sampling and storage. The system adopted EEPROM 24LC32A to store the signal data. The microcomputer received data via wired link with the MAX232 IC through the serial port. The microcomputer program, programmed in Visual Basic, received the data, stored it and plotted the signal. The study successfully samples 3kHz complicated signals and thus meets the design requirement.
上傳時間： 2013-11-19
上傳用戶：moerwang
為提高電容測量精度，針對電容式傳感器的工作原理設計了基于PIC16LF874單片機電容測量模塊。簡單闡述了電容測量電路的應用背景和國內外研究現狀，介紹了美國Microchip公司PIC16LF874單片機的特性。電容式傳感器輸出的動態微弱電容信號通過PS021型電容數字轉換器把模擬量數據轉換成數字量數據，所測數據由PIC16LF874單片機應用程序進行處理、顯示和保存。實驗結果表明，固定電容標稱值為10~20 pF 的測量值相對誤差在1%以內，同時也可知被測電容容值越大，測量值和標稱值相對誤差越小。 Abstract: To improve the accuracy of capacitance measurement，aimed at the principle of work of mercury capacitance acceleration transducer，the design of micro capacitance measurement circuit is based on the key PIC16LF874 chip. Briefly discusses the application of the capacitance measuring circuit for the background and status of foreign researchers，focusing on the United States PIC16LF874 microcontroller features. Capacitive sensor outputed signal through the dynamics of weak PS021-chip capacitors （capacitancedigital converter） to convert analog data into digital data，the measured data from the PIC16LF874 microcontroller application process， display and preservation. Experimental results show that the fixed capacitor 10pF ~ 20pF nominal value of the measured value of relative error is within 1%，but also it canbe seen the value of the measured capacitance larger，measuring value and the nominal value of relative error smaller.
上傳時間： 2013-10-29
上傳用戶：wojiaohs
The CAT25128 is a 128−Kb Serial CMOS EEPROM device internally organized as 16Kx8 bits. This features a 64−byte page write buffer and supports the Serial Peripheral Interface (SPI) protocol. The device is enabled through a Chip Select (CS) input. In addition, the required bus signals are clock input (SCK), data input (SI) and data output (SO) lines. The HOLD input may be used to pause any serial communication with the CAT25128 device. The device featuressoftware and hardware write protection, including partial as well as full array protection.
上傳時間： 2013-11-15
上傳用戶：fklinran
可預置的8位計數器程序的主要部分分析 #include <AT89X51.H> //器件配置文件 #define uchar unsigned char //變量類型的宏定義 #define uint unsigned int uchar code SEG7[10]={0x03,0x9f,0x25,0x0d,0x99, //0~9的數碼管段碼 0x49,0x41,0x1f,0x01,0x09} uchar data cnt[8] //在data區定義8位長度的數組，用來存放計數值 uchar data pre_cnt[8] //在data區定義8位長度的數組，用來存放預置值 sbit drv=P3^4 //定義輸出驅動端 bit set_flag //定義工作標志 bit out_flag //定義輸出標志 bit keydown_flag //鍵按下標志
標簽： unsigned include define uchar
上傳時間： 2015-04-29
上傳用戶：changeboy
Windows下讀寫硬件的工具. RW - Read & Write utility, for hardware engineers, firmware (BIOS) engineers, driver developers, QA engineers, performance test engineers, diagnostic engineers, etc., This utility access almost all the computer hardware, including PCI (PCI Express), PCI Index/Data, Memory, Memory Index/Data, I/O Space, I/O Index/Data, Super I/O, Clock Generator, DIMM SPD, SMBus Device, CPU MSR Registers, ATA/ATAPI Identify Data, ACPI Tables Dump (include AML decode), Embedded Controller, USB Information and LPT Remote Access. And also an Command Window is provided to access hardware manually.
標簽： engineers firmware hardware Windows
上傳時間： 2015-07-01
上傳用戶：xc216
RW - Read & Write utility, for hardware engineers, firmware (BIOS) engineers, driver developers, QA engineers, performance test engineers, diagnostic engineers, etc., This utility access almost all the computer hardware, including PCI (PCI Express), PCI Index/Data, Memory, Memory Index/Data, I/O Space, I/O Index/Data, Super I/O, Clock Generator, DIMM SPD, SMBus Device, CPU MSR Registers, ATA/ATAPI Identify Data, ACPI Tables Dump (include AML decode), Embedded Controller, USB Information and LPT Remote Access. And also an Command Window is provided to access hardware manually. Website1: http://rw.net-forces.com/ Website2: http://home.kimo.com.tw/ckimchan.tw/ Website3: http://jacky5488.myweb.hinet.net/ For best view, please change the screen resolution to 1024 x 768 (or above) pixels.
標簽： engineers developers firmware hardware
上傳時間： 2013-12-22
上傳用戶：王楚楚
This code was used for making the practical measurements in section 2.3 of my thesis. This Matlab code allows an OFDM signal to be generated based on an input data file. The data can be random data, a grey scale image, a wave file, or any type of file. The generated OFDM signal is stored as a windows wave file, allowing it to be viewed, listened to and manipulated in other programs. The modified wave file can then be decoded by the receiver software to extract the original data. This code was developed for the experiments that I performed in my honours thesis, and thus has not been fully debugged. This is the original code developed for the thesis and so has several problems with it. The BER performance given by the simulations is infact Symbol Error Rate.
標簽： This measurements practical section
上傳時間： 2015-09-20
上傳用戶：tedo811
This cookbook contains a wealth of solutions to problems that SQL programmers face all the time. Recipes inside range from how to perform simple tasks, like importing external data, to ways of handling issues that are more complicated, like set algebra. Each recipe includes a discussion that explains the logic and concepts underlying the solution. The book covers audit logging, hierarchies, importing data, sets, statistics, temporal data, and data structures.
標簽： programmers solutions cookbook contains
上傳時間： 2013-12-08
上傳用戶：Altman
設計模式實現的數據庫底層操作組件在應用程序的設計中，數據庫的訪問是非常重要的，我們通常需要將對數據庫的訪問集中起來，以保證良好的封裝性和可維護性。在.Net中，數據庫的訪問，對于微軟自家的SqlServer和其他數據庫（支持OleDb），采用不同的訪問方法，這些類分別分布于System.Data.SqlClient和System.Data.OleDb名稱空間中。微軟后來又推出了專門用于訪問Oracle數據庫的類庫。我們希望在編寫應用系統的時候，不因這么多類的不同而受到影響，能夠盡量做到數據庫無關，當后臺數據庫發生變更的時候，不需要更改客戶端的代碼
上傳時間： 2014-12-06
上傳用戶：Yukiseop
