Description: Proteus环境下的RS485一对多双向数据传送通信，包含Keil程序源码。
主、从机程序都是用查询方式的工程
地址按键可以选择发送数据至不同的从机
从机收到主机发送的数据后，将会显示收到数据，并将该数据反馈给主机
主机收到从机反馈数据后，显示在数码管上-Proteus environment-many bidirectional data transmission RS485 communications, including Keil program source code. Master and slave programs are written query projects address key can choose to send the data to a different machine from the machine received from the host to send data, receive data will be displayed, and the data back to the host host receives feedback data from the machine, the display on the digital Platform: |
Size: 359424 |
Author:陈杰 |
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Description: Fractal Compression of Medical Images:Medical images, like any other digital data, require compression in order to reduce
disk space needed for storage and time needed for transmission. The lossless compression
methods of still images can shorten the file only to a very limited degree.
The application of fractal compression to medical images would allow obtaining
much higher compression ratios. Platform: |
Size: 5693440 |
Author:samia |
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Description: 由于现有无线传感器节点采用的单片机运行速度慢和程序存储空间小， 影响了节点功能的扩
展， 本系统以 STC12C5A60S2 单片机为核心部件， 利用无线数字传输芯片 nRF24L01 和温度采集芯片
DS18B20 构成了无线数据传输系统． 重点讨论了系统的硬件和软件设计要点， 给出了硬件接口电路，
控制系统的主程序流程， 以及主要程序代码． 运行表明， 该系统控制方便 工作稳定， 能实现可靠的无
线数据传输．-Since the existing wireless sensor nodes using microcontroller running slow and program storage space is small, the impact of node extend the capabilities of the system STC12C5A60S2 MCU as the core components, the use of wireless digital transmission chip nRF24L01 chip DS18B20 temperature acquisition and constitutes wireless data transmission systems. Focused on the system' s hardware and software design elements, given the hardware interface circuit, the main program flow control system, and the main program code. Operation shows that the system is stable and easy to control, to achieve reliable wireless data transmission. Platform: |
Size: 771072 |
Author:罗雕 |
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Description: eye pattern, also known as an eye diagram, is an oscilloscope display in which a digital data signal from a receiver is repetitively sampled and applied to the vertical input, while the data rate is used to trigger the horizontal sweep. It is so called because, for several types of coding, the pattern looks like a series of eyes between a pair of rails. It is an experimental tool for the evaluation of the combined effects of channel noise and intersymbol interference on the performance of a baseband pulse-transmission system. It is the synchronised superposition of all possible realisations of the signal of interest viewed within a particular signalling interval. Platform: |
Size: 1024 |
Author:RodrigoRPM |
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Description: 该设计是基于AT89S51单片机的数字温度计系统，采用温度传感器感应温度在数码管实现温度显示。检测范围为-55℃~125℃，精度到1℃。与传统的温度计相比，这里设计的数字温度计具有读数方便，测温范围广，测温精确，数字显示，适用范围宽等特点。选用AT89S52型单片机作为主控制器件，DSl8B20作为测温传感器通过4位共阳极LED数码管串口传送数据，实现温度显示。该器件可直接向单片机传输数字信号，便于单片机处理及控制。另外，该温度计还能直接采用测温器件测量温度，从而简化数据传输与处理过程。-This design is a digital thermometer AT89S51 microcontroller-based systems, the use of a temperature sensor sensing the temperature in the digital temperature display. Detection range is-55 ℃ ~ 125 ℃, accuracy to 1 ℃. Compared with the traditional thermometer, digital thermometer designed here with easy reading, wide temperature range, accurate temperature measurement, digital display, wide range of features. Optional AT89S52 MCU as the main control device, DSl8B20 as a temperature sensor 4 common anode LED digital serial transmission of data through to achieve temperature display. The device can transmit digital signals directly to the microcontroller, easy handling and control of the microcontroller. In addition, the direct use of temperature thermometer can measure the temperature of the device, thus simplifying data transmission and processing. Platform: |
Size: 3072 |
Author:孔文 |
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Description: 运动控制技术是在以数字信号处理器DSP为代表的高性能高速微处理器及复杂可编程逻辑器件CPLD的基础上发展而来的，它是广义上的数控装置。数控技术的发展趋势就是采用运动控制器的开放式数控系统。本文设计了一款全新的运动控制卡，选用TI公司32位的
TMS320F2812芯片，利用高速PCI总线实现数据传输，并采用目前最先进的NURBS曲线插补方式实现多轴联动。此外，本文设计的多轴运动控制卡只要能够准确输出各轴控制脉冲的方向和个数，即可实现多轴联动控制。
-Motion control technology is based on a digital signal processor (DSP), represented by high-performance high-speed microprocessors and complex programmable logic device CPLD development comes on, it is the numerical control device in a broad sense. CNC technology trends is the use of open CNC motion controller system. This paper presents a new motion control card, use TI s TMS320F2812 chip 32-bit, high-speed PCI bus for data transmission, and the use of the most advanced NURBS curve interpolation way to achieve multi-axis. In addition, the paper design of multi-axis motion control card as long as the output for each axis direction can be accurately controlled and the number of pulses, can achieve multi-axis control. Platform: |
Size: 1122304 |
Author:李游原 |
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Description: 本温度计属于多功能温度计，可以设置上下报警温度，当温度不在设置范围内时，可以报警。
数字温度计所测量的温度采用数字显示，控制器使用单片机89S51，测温传感器使用DS18B20，用3位共阳极LED数码管以串口传送数据，实现温度显示。-The use of digital temperature sensor DS18B20 temperature measurement signal, after calculations show the corresponding temperature value on the LED digital tube. A temperature measurement range of 1 to 99 degrees. The thermometers are versatile thermometer, you can set the upper and lower temperature alarm when the temperature is not set range, can call the police. Digital thermometer to measure the temperature with digital display controller using microcontroller 89S51, temperature sensor DS18B20, with three common anode LED digital serial transmission of data in order to achieve temperature display. Can easily be read directly measured temperature value from the temperature sensor DS18B20, convert that to meet the design requirements. Platform: |
Size: 30720 |
Author:zgp |
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Description: 无线温度遥测系统由温度数据采集模块、数据发射模块、数据接收模块、LCD显示模块以及声光上限报警等模块组成。它主要以单片机STC89C52为控制核心，利用温度传感器DS18B20采用单总线协议、直接将被测环境的温度转化成数字信号的特点，以及射频收发芯片NRF24L01的无线数据传输功能，加之LCD12864、1602的液晶数据显示与有源蜂鸣器和LED的声光报警显示，实现了环境温度的实时监测和无线传输数据、显示被测温点温度数据及声光上限报警等功能。-Wireless temperature telemetry system consists of temperature data acquisition module, data transmission module, data receiver module, LCD display module and the upper limit of sound and light alarm, etc. modules. It is mainly STC89C52 microcontroller to control the core temperature sensor DS18B20 single-bus protocol directly to the temperature measured environmental characteristics into digital signals, and RF transceiver chip NRF24L01 wireless data transmission capabilities, combined with the LCD data LCD12864, 1602' s Display and active buzzer and light alarm sound LED display, real-time monitoring of the ambient temperature and the wireless transmission of data, display data and temperature measurement points are sound and light ceiling alarm. Platform: |
Size: 144384 |
Author:xiaofei |
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Description: 31.19解码器- RS code is the BCH code of multi-systerm, after a long time of development, the theory and technology of RS code has been rather mature that it can rectify burst error and random error at the same time, especially burst error. It is widely used in deep space communication, satellite communication, data transmission and saving, mobile communication, document transmission, digital audio and video transmission. Platform: |
Size: 25600 |
Author:贺文忠 |
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Description: 多路温度巡检仪采用ctrtex-M3内核的微处理器stm32为主控制器，配合数字式温度传感器、NRF24L01无线模块、液晶显示屏、LED 、及按键等组成。DS18B20温度传感器采用单总线技术实现和stm32的通信。采用NRF24L01无线传输将设备一采集到的温度信息传递给设备二。设备二的CPU将接收到的温度信息与设定的报警温度进行比较，如果大于设定的报警温度则亮对应的LED灯，并温度信息显示到TFTLCD屏上实现人机交互信息传递。按键的作用是设定设备一和设备二：如果 KEY1键按下，设置该设备为发送模式；如果KEY0键按下，设置该设备为接收模式；如果不能正常收发则会在LCD显示屏上提示错误信息。
本设计实现了开机自检，开机后即可自动检测DS18B20,NRF24L01等模块是否正常，如果不正常则会在LCD上提示错误信息。本系统一共使用了四个DS18B20温度传感器，通过在四个时间点ROM序列号的匹配可以实现温度巡检。CPU将采集到的温度值相加除以4得到平均温度，并显示在LCD上。
-The multi-channel temperature patrol instrument uses the STM32 with cortex-M3 core ad the main controller, cooperated with digital temperature-sensor,wireless data transmission device NRF24L01,a LCD screen,LED and keys.The temperature sensor DS18B20 realized the communication with STM32 by using 1-wire technology.The device one using the wireless data transmission device passes the temperature information gathered to the device two.The CPU of the device two will compare the temperature information received with the warning temperature seted before.The LED is lighted if the temperature is beyond the warning temperature ，and the temperature information is displayed to the TFTLCD to realize temperature human interaction.The keys is used to set the device one or two：if the key1 is pressed，the device is seted to delivery mode.if the key0 is pressed，the device is seted to send mode.The error message will displayed on the LCD,if the device can not receiving or sending.
Boot automatical Platform: |
Size: 2167808 |
Author:xiaohui |
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Description: 基于LABVIEW的线性霍尔传感器传递数据涉及数字IO控制-LABVIEW based linear Holzer sensor data transmission involves digital IO control Platform: |
Size: 34816 |
Author:zhouqi |
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Description: 本标准适用于具有串行比特数据编码传输的远动设备和系统，用以对地理广域过程的监视和控制.制定远动配套标准的目的是使兼容的远动设备之间达到互操作. 本配套标准利用了国际标准IEC 60870-5的系列文件. 本标准规定了IEC 60870-5-101的应用层与TCP/IP提供的传输功能的结合. 在TCP/IP框架内，可以运用不同的网络类型，包括X.25，FR(帧中继)，ATM(异步传输模式)和ISDN(综合服务数据网络). 根据相同的定义，不同的ASDU，包括IEC 60870-5全部配套标准(例如IEC 60870-5-102)所定义的ASDU，可以与TCP/IP相结合，不过这些在本标准中没有进一步说明.-This standard applies to telecontrol equipment and systems with coded bit-serial data transmission for a wide area of geography process monitoring and control. Develop remote support standards aim is to achieve interoperability between so compatible remote device. the companion standard utilizes the international standard IEC 60870-5 series of documents. this standard specifies the binding IEC 60870-5-101 application layer and the TCP/IP provides transport functions. in the TCP/IP frame, you can use different network types, including X.25, FR (Frame Relay), ATM (Asynchronous Transfer Mode) and ISDN (integrated services Digital network). according to the same definition, different ASDU, including all the supporting IEC 60870-5 standard (eg IEC 60870-5-102) ASDU defined, it can be combined with TCP/IP, but they did not further described in this standard. Platform: |
Size: 98304 |
Author:lucsheng |
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Description: 本设计是基于FPGA技术来实现QPSK
数字调制传输系统。通过VHDL语言基于
FLEXlOK芯片完成了QPSK数字调制系统
的调制与解调模块、位同步信号恢复模块、
帧同步信号提取模块，数据采集模块、数据
恢复等模块的设计与仿真。-This design is based on FPGA technology to achieve QPSK
Digital modulation transmission system. Based on the VHDL language
FLEXlOK chip has completed the QPSK digital modulation system
Modulation and demodulation module, bit synchronization signal recovery module,
Frame synchronization signal extraction module, data acquisition module, data acquisition module, data acquisition module.Design and Simulation of recovery module. Platform: |
Size: 218112 |
Author:周能斌 |
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Description: 数字密码锁是二十一世纪制锁业的一次革命。锁的特点是不用钥匙、无锁孔、机械传动、不易损坏、不磨损、不易被破译、可多次更换密码、换号不换锁、一把锁多个密码，具有防拨、防砸、防撬、防堵等功能。-Digital password lock is a lock of the twenty-first Century revolution. The lock is characterized by no key, the lock, no mechanical transmission, no damage, no wear, not easy to be deciphered, can change the password, change the number of times, do not lock a lock password, with anti pulling, anti smashing, anti prizing and anti blocking function. Platform: |
Size: 914432 |
Author:黑曼巴 |
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Description: TI公司的DS90UB927Q视频数据串行芯片，将标清，高清视频信号串行化传输。-The DS90UB927Q serializer, in conjunction with a DS90UB928Q or DS90UB926Q deserializer, provides a
complete digital interface for concurrent transmission of high-speed video, audio, and control data for automotive
display and image sensing applications.
The chipset is ideally suited for automotive video display systens with HD formats and automotive vision systems
with megapixel resolutions. The DS90UB927Q incorporates an embedded bidirectional control channel and low
latency GPIO controls. This device translates a FPD-Link video interface into a single-pair high-speed serialized
interface. The FPD-Link III serial bus scheme supports full duplex, high speed forward channel data transmission
and low-speed back channel communication over a single differential link. Consolidation of audio, video, and
control data over a single differential pair reduces the interconnect size and weight, while also eliminating skew
issues and simplifying system design. Platform: |
Size: 893952 |
Author:eezoo |
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Description: 无线数据传输广泛地运用在车辆监控、遥控、遥测、小型无线网络、无线抄表、门禁系统、小区传呼、工业数据采集系统、无线标签、身份识别、非接触RF智能卡、小型无线数据终端、安全防火系统、无线遥控系统、生物信号采集、水文气象监控、机器人控制、无线232数据通信、无线485/422数据通信、数字音频、数字图像传输等领域中。(Wireless data transmission is widely used in vehicle monitoring, remote control, telemetry, small wireless network, wireless meter reading, guard monitor system, industrial data acquisition system, wireless tag, identification, contactless smart card, small RF wireless data terminal, fire safety system, wireless remote control system, biological signal collection, hydrological and meteorological monitoring 232, robot control, wireless data communication, 485/422 wireless data communication, digital audio, digital image transmission etc..) Platform: |
Size: 28196864 |
Author:伟大的人啊
|
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Description: A smart home project source code based on Android, the project through the Zigbee network control acquisition of home equipment to achieve management functions. Millet smart home package is the choice of ZigBee protocol. Simply speaking, ZigBee is a highly reliable wireless digital network, similar to the CDMA and GSM network. The ZigBee data transmission module similar to the mobile network base station Platform: |
Size: 14042112 |
Author:lyr在水一方
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Description: A family of leased line data communication technologies that provides a dedicated synchronous transmission connection at speeds of 56 Kbps. Digital data service (DDS) is only one example of a type of digital line; others include Integrated Services Digital Network (ISDN) and T1. DDS can be used in either multipoint or point-to-point communications and requires dedicated digital lines. DDS lines can also be used to connect buildings on a campus, usually with a maximum distance of about 3 miles. Platform: |
Size: 15360 |
Author:ghanbari1995
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Search - digital data transmission