于FPGA和面陣CCD攝像頭的動態光譜數據采集與預處理
上傳時間: 2013-10-16
上傳用戶:dongqiangqiang
單片機軟件,3D8光立方取模軟件。
上傳時間: 2013-11-21
上傳用戶:jyycc
本文是基于C8051F單片機的便攜式農田基礎信息采集系統的設計方案,為了克服現有農田綜合數據采集設備的移動性差,高成本,使用復雜的不足,本文提供一種便攜嵌入式農田基礎數據采集終端,該終端具有體積小、功耗低、攜帶性好、操作簡單、安裝方便、模塊化和可擴張性及網絡化功能,農業生產管理人員可以隨意攜帶到田間地頭進行使用。
上傳時間: 2013-11-09
上傳用戶:huyanju
Ominivision公司的新型攝像頭模組OV7670,具有體積小、輸出圖像格式多、接口方便、寄存器可讀寫等特點,是嵌入式系統中圖像采集的理想選擇。通過設置OV7670的寄存器的值,可以更好地實現對攝像頭的控制,得到更加理想的圖像。本文介紹了PC104系統對OV7670攝像頭模組寄存器讀寫的過程及編程方法。
上傳時間: 2013-11-23
上傳用戶:songyue1991
lcd漢字取模軟件
上傳時間: 2013-10-09
上傳用戶:18752787361
USB2I2C是一個USB總線的轉I2C總線的專用接口芯片。通過USB2I2C芯片用戶可以非常方便地實現PC機USB總線和下位機端各種I2C/IIC設備(如,ATMEL公司的AT24CXX系列EEPROM;I2C總線8位并行IO口擴展芯片PCF8574/JLC1562;I2C接口實時時鐘芯片DS1307/PCF8563/SD2000D/M41T80/ME901/ISL1208/;I2C數據采集ADC芯片MCP3221(12bitADC)/ADS1100(16bitADC)/ADS1112(16bitADC)/MAX1238(12bitADC)/MAX1239(12bitADC);I2C接口數模轉換DAC芯片DAC5574(8bitDAC)/DAC6573(10bitDAC)/DAC8571 (16bitDAC)/;I2C接口溫度傳感器TMP101/TMP275/DS1621/MAX6625,等)之間的通信。 USB2I2C芯片上位機PC端提供簡單易用的USBIOX.DLL動態庫調用,可以方便地被VB,VC,Delphi等上位機開發工具調用
上傳時間: 2014-12-26
上傳用戶:Amygdala
基于單片機的多路數據采集系統
上傳時間: 2014-12-26
上傳用戶:龍飛艇
PC與單片機數據采集系統的USB通訊設計論文
上傳時間: 2013-10-30
上傳用戶:hanli8870
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
為提高溫度測量效率,降低系統的成本,擴展傳輸距離,設計出一種新型溫度采集系統。單片機通過控制具有單總線方式的溫度傳感器DS18B20實現對溫度的測量,同時單片機通過控制具有單總線方式300~450MHz頻率范圍內的MAX7044與MAX7033無線發射與接收芯片實現溫度數據的無線傳輸。與傳統溫度采集系統相比,該系統利用單總線方式連接,采用無線傳輸方式實現遠距離通信,易于系統的集成與擴展。實驗結果表明,該系統結構簡單、方便移植,能夠同時實現多達上百點溫度的測量與500m范圍的傳輸。 Abstract: To improve the temperature measurement efficiency and reduce system cost,expansion of transmission distance,a new type of temperature acquisition system is designed.Microcontroller controlled temperature sensor DS18B20which has a single-bus achieves temperature measurement,while microcontroller by controlled the MAX7044and MAX7033chip with a single-bus and having300~450MHz radiofrequency to achieve the wireless transmission of temperature data.Compared with conventional temperature acquisition system,the system uses single-bus connected,and uses wireless transmission means to achieve long-distance communications,easy-to-system integration and expansion.The experimental results show that the system is simple,convenient transplantation,and can be implemented in as many as a hundred-point temperature measure-ment and the transmission range of500meters.
上傳時間: 2013-10-29
上傳用戶:515414293