Data logger Serial Communication function based on new Renesus microcontroller. This module has been Tested on the renesus develop board with RS232 cable.
標簽： microcontroller Communication function Renesus
上傳時間： 2013-12-26
上傳用戶：ZJX5201314
Data logger Power transision function switch among different power modes based on new Renesus microcontroller. This module has been Tested on the renesus develop board with different LED to indicate different power modes.
標簽： transision different function Renesus
上傳時間： 2017-09-01
上傳用戶：z1191176801
Complete solution for Hardware Programming. PonyProg software and Schematics. Contains PCBs and all the hardware diagrams needed by the Hardware Programmer. PCBs are Tested and Software which is a Freeware, Works well under Windows XP and Windows Vista.
標簽： Programming Schematics and Complete
上傳時間： 2013-12-31
上傳用戶：123啊
有多徑信道、多普勒頻移，瑞利、RICE(萊斯)信道等仿真，QPSK調(diào)制和解調(diào)等，交織編碼。程序經(jīng)過本人測試，絕對可用，并附上本人測試說明和仿真圖像結(jié)果-I collected information on 2, how-path channel, Doppler frequency shift, Rayleigh, RICE (Rice) channel, such as simulation, QPSK modulation and demodulation, etc., Interleaved Coded. After I Tested the procedure is absolutely available, along with my test images and simulation results indicate.
上傳時間： 2015-06-16
上傳用戶：whtiger
SharpPcap c#抓包實現(xiàn)時時獲取網(wǎng)卡信息 SharpPcap tutorial: a step by step guide to using SharpPcap The text of this tutorial is taken directly from WinPcap's official tutorial but is modified to show the C# use of the SharpPcap library. All examples can be downloaded together with SharpPcap source code from SharpPcap 's homepage. The WinPcap library must be installed before attempting to run any of these examples, so please download and install the latest version from WinPcap's download page. SharpPcap was written and Tested using .NET v1.1 and Windows 2000/XP. I have no idea about other .NET and Windows versions. If you do try it, please report your results. The following topics are covered in this tutorial: Obtaining the device list Obtaining advanced information about installed devices Opening an adapter and capturing packets Capturing packets without the event handler Filtering the traffic Interpreting the packets Handling offline dump files Sending Packets Gathering Statistics on the network traffic 1. Obtaining the device list
標簽： SharpPcap c#抓包 獲取網(wǎng)卡信息
上傳時間： 2015-07-06
上傳用戶：muzongda
The 4.0 kbit/s speech codec described in this paper is based on a Frequency Domain Interpolative (FDI) coding technique, which belongs to the class of prototype waveform Interpolation (PWI) coding techniques. The codec also has an integrated voice activity detector (VAD) and a noise reduction capability. The input signal is subjected to LPC analysis and the prediction residual is separated into a slowly evolving waveform (SEW) and a rapidly evolving waveform (REW) components. The SEW magnitude component is quantized using a hierarchical predictive vector quantization approach. The REW magnitude is quantized using a gain and a sub-band based shape. SEW and REW phases are derived at the decoder using a phase model, based on a transmitted measure of voice periodicity. The spectral (LSP) parameters are quantized using a combination of scalar and vector quantizers. The 4.0 kbits/s coder has an algorithmic delay of 60 ms and an estimated floating point complexity of 21.5 MIPS. The performance of this coder has been evaluated using in-house MOS tests under various conditions such as background noise. channel errors, self-tandem. and DTX mode of operation, and has been shown to be statistically equivalent to ITU-T (3.729 8 kbps codec across all conditions Tested.
標簽： frequency-domain interpolation performance Design kbit_s speech coder based and of
上傳時間： 2018-04-08
上傳用戶：kilohorse
)Armature windings of the electric motor for NO.2 deck cargo winch found low insulation. Windings re-winded,painted and baked dry. (2) NO.1 main air compressor failed to build up pressure.The machine disassembled, cleaned and inspected. The discharge valve plate found broken. The valve palte renewed and running trials Tested after being reassembled.
標簽： 答案
上傳時間： 2020-07-14
上傳用戶：
目的:自主研制一款超聲手術(shù)刀電源控制系統(tǒng),以減少能量的消耗,維持手術(shù)刀的正常溫度。方法:對超聲換能器在諧振附近的等效電路建立模型,并設(shè)計基于數(shù)字信號處理(DSP)的超聲手術(shù)刀的硬件控制系統(tǒng)。結(jié)果:經(jīng)對電源控制系統(tǒng)的電路和工作性能測試,生成的電流和電壓的有效值等參數(shù),能夠及時調(diào)整電源的頻率,并達到預(yù)期的功能指標,使超聲手術(shù)刀工作在諧振狀態(tài)。結(jié)論:以DSP為核心設(shè)計的超聲手術(shù)刀電源控制系統(tǒng),測試指標均能夠達到預(yù)期的要求,能夠使系統(tǒng)在諧振狀態(tài)下工作。Objective: To independently develop a power control system of ultrasonic scalpel so as to reduce the energy consumption and maintain the normal temperature of ultrasonic scalpel. Methods: In this paper, the model of equivalent circuit of ultrasonic transducer nearby syntony was built up, and the hardware control system of ultrasonic scalpel based on digital signal processing(DSP) was designed. Results: Through testing the circuit and work performance of power control system, the series of parameters such as effective value and so on which were produced by this system could adjust frequency of power source in time and attain anticipative functional indicator, and it took the ultrasonic scalpel to work in syntonic situation. Conclusion: The Tested indicators of power control system of ultrasonic scalpel based on the kernel design of DSP can attain anticipative requirement, and can take this system to work in syntonic situation.
標簽： 數(shù)字信號處理 超聲手術(shù)刀 電源控制
上傳時間： 2022-04-03
上傳用戶：bluedrops
超聲波換能器作為一種實用的檢測手段，能實現(xiàn)聲波所攜帶的信息和電能之間轉(zhuǎn)換。它的性能優(yōu)良，價格低廉，操作方便，易于調(diào)試，因此在工農(nóng)業(yè)生產(chǎn)中發(fā)揮著重要的作用。但目前換能器驅(qū)動電路的發(fā)射頻率多為40 kHz，本文針對1 MHz的超聲波換能器電路進行了設(shè)計，主要介紹了它的發(fā)射驅(qū)動電路和接收驅(qū)動電路的設(shè)計方案，并對它們的功能進行了詳細地說明。最后搭建實驗平臺，并對電路的輸入、輸出模塊進行了測試。實驗結(jié)果表明，換能器電路運行良好，可以為超聲波高精度測量領(lǐng)域的應(yīng)用提供參考。As a practical means of detection, ultrasonic transducer can realize the conversion between theinformation carried by sound wave and electric energy.It has the advantages of excellent performance,low cost, convenient operation and debugging, so plays an important role in industrial and agriculturalproduction.However, the transmitting frequency of the driving circuit for most transducer is 40 kHz.Thecircuit of 1 MHz ultrasonic transducer is designed In this paper. It mainly introduces the emissive drivingcircuit and the receiving circuit design and the detailed function of them. Finally, the experimentalplatform is built, and the circuit of input and output were Tested. Experiments show that the transducer＇ s...
上傳時間： 2022-04-28
上傳用戶：
以STM32F103C8T6為核心,設(shè)計了無刷直流電機控制器硬件電路。電路主要包括IR2310構(gòu)成的PWM驅(qū)動電路、IRF3808構(gòu)成的逆變電路、增量式旋轉(zhuǎn)編碼構(gòu)成的速度反饋電路。控制器具有CAN和RS232通信接口,可與計算機或PLC構(gòu)成速度或位置伺服系統(tǒng)。利用由xPC目標搭建的半實物仿真平臺對PI參數(shù)進行整定。測試了控制器的速度伺服響應(yīng)性能,給定速度為2400rpm時,控制器響應(yīng)時間為0.32s。實驗結(jié)果表明,系統(tǒng)工作可靠,穩(wěn)定性好,響應(yīng)速度快,可以滿足上肢康復(fù)機器人的機械臂速度控制性能要求。The hardware circuit of Brushless DC motor controller is designed by taking STM32F103C8T6 as the core,which mainly includes PWM driving circuits made up of IR2310,inverter circuit formed by IRF3808,speed feedback circuit composed of incremental rotary encoder and so on.Speed servo control system or position servo control system can be composed of BLDM controller with computer or PLC through CAN communication interface or RS232 serial communication interface.By using the hardware in the loop simulation platform built by xPC target,the PI parameters are set up.The Speed servo response performance of the controller is Tested.When the speed is 2 400 rpm,the response time of the controller is 0...
上傳時間： 2022-05-07
上傳用戶：
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