高度信號輸入 的英文怎麼說
中文拼音 [gāodùxìnháoshūrù]
高度信號輸入
英文
height input- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 號 : 號Ⅰ名1 (名稱) name 2 (別號; 字) assumed name; alternative name3 (商店) business house 4 (...
- 輸 : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
- 入 : Ⅰ動詞1 (進來或進去) enter 2 (參加) join; be admitted into; become a member of 3 (合乎) conf...
- 高度 : altitudeheightelevation
- 輸入 : 1 (從外部送到內部) import 2 [電學] input; entry; entering; in fan; fan in; 輸入變壓器 input tra...
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The system comprises three modules : the first is the ccd driver module, which controlled with cpld. programming the cpld to produce ccd driving pulses and synchronized communication signals. after preprocessing, the output video signals are transmitted into high resolution adc module, in which they are converted into digital signals, and then processed in arm processing module
整個系統分為三個模塊: ccd驅動模塊的核心是一片復雜可編程邏輯器件( cpld ) ,對其編程產生ccd的驅動脈沖及同步控制信號;視頻輸出信號經預處理后,由高精度ad轉換模塊進行采樣,將ccd輸出的模擬信號轉換成數字量;最後,將數據送入arm處理系統中進行后續處理。Summarize : multi - input, can be used cooperate with various sensors / transducers, measure 、 display and alarm control the physical quantities such as temperature 、 humidity 、 liquid level and flux # 118alues and transform them to export, can read and write all parameters via the computer through serial communication, besides it can offer 24vdc power supply for 2 - wire transducers, four - bit led displaying, the multi - segment curve correcting function is selectable, one meter can equip four alarm relay outputs 、 one transform ( or communication ) output and one equipped power supply outputs
萬能輸入,可與各類傳感器、變送器配合使用,實現溫度、濕度、壓力、液位、流量等物理量的測量、顯示、報警控制和變送輸出;通過串列通信口,可在上位計算機中實現全部儀表參數的讀寫;還可為兩線制變送器提供24vdc電源; 4位高亮度led數字顯示;對輸入信號有多段折線修正功能可選;一臺儀表最多可配4個報警繼電器輸出、一路變送(或通信)輸出和一路配電輸出。Intelligent multi - channel data - logging display controller adopt advanced microprocessor for smart control, it is suitable for display and control temperature, humidity, pressure, liquid level, instantaneous flow, speed and so on in many physical quantity inspect signal, and can data - logging multi - channel measure signal. it also can carry on high - accuracy linear correction to various non - linear input signals
雙迴路數字光柱顯示控制儀採用先進的微處理器進行智能控制,適用於溫度濕度壓力液位瞬時流量速度等多種物理量檢測信號的顯示及控制,並能對各種非線性輸入信號進行高精度的線性校正。The hardware has two input channels of high - speed analog signal, with the signal amplitude of 0 - 5v, the conversion precision of 12bits, and the maximum sampling rate of 400ksps. this system includes 4 dsps ( adsp 2181 ), which can be arranged as a pipe line processing array. many algorithms can be realized in this system
系統硬體有兩路模擬數據採集通道,模擬信號輸入范圍為0 ? 5v ,轉換精度為12位,最高采樣率400ksps ;系統包含4片dsp ( adsp2181 )構成的流水線型的處理陣列,可用於實現各種演算法;系統的控制邏輯由fpga完成。The concept of " timing " in the article is not the clock in our ordinary living, but syntheses which is made up of some frequency source in the signal generator ( such as cs atom frequency standard, rb clock & high accuracy quartz crystal oscillator ) which produces the primary frequency, the matching input interface and the matching output interface and controlling circuit etc. for example, bits is a kind of timing equipment, which is used to control the timing of some functions
本文論及的「時鐘」概念不是指日常生活中使用的鐘表,而是由產生基準頻率的信號發生器(如銫原子頻率標準、銣鐘及高精度石英晶體振蕩器等)中的某種頻率源以及相配套的輸入、輸出介面和控制電路等組成的一整套具有特定同步定時功能的綜合體。如bits就是一種時鐘設備,它提供用在通信系統中控制某些功能的定時的時間基準設備,時鐘提供的信號稱為基準信號、定時信號或同步信號。With the rapid development of information technology, all kinds of portable electronic products and personal digital assistants are coming forth, the information source of these products partly roots in newspapers and journals, if the literal data could be acquired in optical scan mode instead of traditional keyboard input mode, human hands will be further liberated. on the other hand, the digital signal processor ( dsp ) specially designed for high - speed digital signal processing is playing an important role in the digital field, and the dsp with high processing speed and excellent operation performance is particularly adapted to image processing and character recognition. in consequence of this status, making use of new technology, this thesis researches into miniature intelligent reading system based on dsp and then presents a system solution of it
隨著信息化技術的飛速發展,各種便攜式電子產品和個人助理不斷涌現,這類產品的信息來源有很大一部分都是報紙、書刊等文字資料,如果以文字的光掃描輸入取代傳統鍵盤輸入將會進一步解放人的雙手;同時專門為高速數字信息處理而設計的數字信號處理器( dsp )也成為數字化領域的重要角色, dsp的高速度和良好的運算性能特別適合於圖像處理和文字識別。In this paper, chroma dc coefficients are selected as the carrier data because chroma dc coefficients are robust. also, alterable steps are used to select one part of the coefficients, so the watermark is imperceptible ; before watermark embedding, the watermark is divided into many parts, every part is individually embedded into one gop of the video, even if a gop is destroyed, the watermark can be extracted correctly, this methods promotes the robustness of the watermark ; in addition, in order to promote the security of the watermark, the user ' s id and password are used to generate chaos sequence by the chaos system which is created in this paper, later, watermark is mixed by the chaos sequence. also, the embedding position of the watermark bit is modified by one chaos sequence, so, unauthorized person can not extract or remove the watermark, since the embedding position is unknown
本文認為,色度dc系數是魯棒性非常好的參數,因而選擇色度dc系數作為水印信息載體,同時,採用可變的步長選擇部分系數,保證了水印的隱形性;在嵌入水印時,本文採用水印信息「網格劃分」 、各子塊獨立嵌入視頻的方案,由於水印信息子塊是相對獨立的嵌入視頻中的每一相對獨立的圖組當中,即使某一圖組收到一定破壞,也能夠恢復水印信息,使水印的健壯性得到提高;此外,為了提高水印信息的安全性,在嵌入水印信息時,根據用戶輸入的id號和密碼,利用本文構造的混沌系統產生的混沌序列對水印信息進行變換,同時,對每一水印信息比特的嵌入位置也採用了偽隨機序列進行調整,這樣,未授權用戶不能提取水印信息,也難以擦除其中的水印信息,因為嵌入的位置是未知的。This product is a full electron construction in which its front - end adopts pressure sensor with baffle filled oil chip. output signal is sent the data to microprocessor from high - precision, low temperature drift and high - reliability amplification circuit and a d convert circuit, after operating, to transform by high - precision d a convert circuit into standard signal output
該產品為全電子結構,前端採用帶隔離膜充油芯體的壓力傳感器,輸出信號由高精度低溫漂和高可靠性的放大電路和模數轉換電路將數據送入微處理器,經運算後由高精度數模轉換電路變換為標準信號輸出。The digitizer based on pxi bus uses fpga ( field programmable gate array ) to implement 256 points, radix - 2 dit fft ( fast fourier transform algorithm ). the design uses pipelining for fft processing and can accomplish sampling and processing signals of two channels at the same time. in the signal acquisition circuit, - a / d convector is used to enhance the precision of the signal sampling
在本設計中,採用fpga ( fieldprogrammablegatearray )實現了256點基2dit演算法復數fft ( fastfouriertransformalgorithm快速傅氏變換演算法)處理器,具有較高的速度和運算精度fft ,設計採用流水線處理方式大大的提高了處理速度,可實現對兩個通道輸入信號的并行採集與處理。Frequency response, quantization noise, reconstruction error and its sensitivity to mismatch among adcs are studied at length in prqmf banks adc system, and the theoretic results include : ( 1 ) the distortion / aliasing functions of hybrid filter banks adc system is similar with that of switch capacitor filter banks adc system ; ( 2 ) for wide or narrow band input signal, the effective resolution of the two adc systems is 0. 51og2m bits higher than their adc ; ( 3 ) reconstruction error ' s sensitivity to mismatch among adcs of the two adc systems is reduced effectively than time interleaved adc system
2對prqmf濾波器組adc系統的頻響、量化噪聲特性、重建誤差特性以及重建誤差對adc間的失配敏感性進行了理論分析研究,所得到的理論結果為: ( 1 )混合濾波器組adc系統與開關電容濾波器組adc系統的失真/混迭函數一致; ( 2 )無論輸入寬帶還是窄帶信號,這兩種adc系統的有效解析度均比其adc提高了0 . 5log _ 2m比特; ( 3 )這兩種adc系統的重建誤差對其adc間的失配敏感性均明顯低於時間交織adc系統。This control system adopts creditable plc for real control ; it sends many simulating signals collected by old sand temperature of inlet, suction opening temperature of double disk, inner sand temperature of double disk, current of mainframe and current of fan ; meanwhile, the operation signal and switching value signal outputted by material movement transducer is inputted to switching value module of plc ; it gets evidence of water feeding after cpu account ; the operation result of cpu is outputted by switching value of plc to control unlock combination of coarse, middle and thin water feeding electromagnetically operated valve and then gets different water feeding quantity
該控制系統採用高可靠性的plc可編程序控制器進行實時控制,傳感器所採集的入口舊砂溫度雙盤抽風口溫度雙盤內砂溫主電機電流及鼓風機電流等模擬量信號直接輸入plc的模擬量採集模塊,同時加砂設備運轉信號及加砂設備物料移動檢測傳感器發出的開關量信號輸入plc的開關量模塊,由cpu獲取經運算而得到加水計算依據, cpu運算結果直接由plc的開關量輸出控制粗中細加水電磁閥的開啟組合,而得到不同的加水量。To acquire higher input speed, we studied the possibility of using a volume holographic storage as an input device for optical signal processing
為了獲得更高的輸入速度,探討了利用體全息存儲技術進行信號輸入的可能性。In the first part of this paper, the theory of laser range and dds technology was introduced, the factors of influencing range precision were also analysed. at the same time, put forward in the paper, with using the fpga embedded technology, the wideband and high resolution sin modulating signals can be generated easily, then analysed the noise of the dds ; in the second part, the theory of phase measurement based on fft was analysed. in the phase range system, by using the fft operation, the resolution and sensibility of phase measurement can be enhanced ; then some circuits were designed and come true, also simulated and validated ; in last part, the improvement of the phase range system was brought forward, summarized and expected
論文首先闡述了激光測距和調制信號源的基本原理,分析了影響測距精度的因素,指出應用dds技術可以實現寬帶、高精度的調制信號輸出,說明了引起dds輸出信號雜散的原因和解決的辦法;同時分析了應用fft運算實現信號相位提取的基本原理及設計方法,採用這種檢相技術,可以極大地提高測相精度與靈敏度;然後提出了基於fpga嵌入式系統的相位式激光測距機的整體設計,並就各部分進行了詳細的分析與設計;接著介紹了激光測距系統的外圍電路和基於quartusii集成軟體平臺的部分硬體電路的設計,並對其中的設計進行了模擬和驗證;最後總結提出了對系統今後的進一步改進和完善的思路。The results show that wavelength locates in gain zone of semiconductor optical amplifier, and have higher peak power and proper time delay between the two pulses for the second order super gauss control pulse in semiconductor optical amplifier. a high quality amplified signal pulse can be achieved. the chirp can be reduced notability by using cascading soa in cross gain modulation based on soa, and the distance and the peak power of conversion optical pulse can be increased notability, and we can let down the demand for wavelength based on xgm in soa and enhance the flexibility of wavelength conversion
我們應用二階超高斯光脈沖與高斯信號脈沖同時注入soa和應用soa與非線性光學環鏡( nolm )相結合的方案來對信號脈沖進行壓縮整形,模擬顯示,在調節系統合適參數的情況下,波長位於soa增益區的二階超高斯控制光脈沖在具有較高的峰值功率和適當時延下輸入soa時,最後可以得到放大的高質量超簡訊號光脈沖;在基於soa的交叉增益調制( xgm )全光波長轉換中,採用級聯的soa能有效地使反轉光脈沖的頻率啁啾得到有效降低,波長向下轉換的距離和反轉光的峰值能量都得到明顯提高,降低了利用交叉增益調制( xgm )波長轉換中對波長精度的要求,從而提高了波長轉換的靈和性。Current voltage isolated conversion module is a kind of miniaturization insert type construction conversion module, between its supply power input signal and output signal are isolated each other, its input ac voltage or ac current can be transformed into ma or v standard signal output. it has accuracy high, linearity good, debug simple, work stable and reliable and so on features, apply to electricity parameter display, record and monitor of the dcs system fields
電流電壓隔離轉換模塊是一種小型化插裝式結構的轉換模塊,其具有工作電源輸入信號輸出信號三者相互隔離,能將輸入的交流電壓或交流電流轉換成420 ma或15 v標準信號輸出,具有精度高,線性好,調試簡單工作穩定可靠等特點,適用於電量參數的顯示記錄dcs系統的監控等場合。The system that electrical power is supplied by silicon - controlled, speed abjusted by direct current double loop - locked and controlled by microcomputer is the high acurracy digital system following the input signal
摘要微機控制的晶閘管供電的雙閉環直流數字調速系統是高精度復現輸入信號的數字隨動系統。Operational signal has two kinds : one is analog quantity output of direct reverse action also called q type manipulator ; the other is direct reverse revolution switch quantity output also called d type manipulator, shown as the following block figure,
輸入埠具備萬能信號輸入功能,只需通過儀表菜單的簡單選定,即可實現不同類型輸入信號各種熱電偶熱電阻標準電壓標準電流信號之間的輕松切換,提高了低度表的通用性和可靠性。In allusion to the coupling influence to system accuracy, this paper brings forward using dynamic robust compensation based on decoupling control. simulation experiments to prove its validity. in allusion to the performance index of simulation table, such as low velocity, high frequency response, high accuracy, etc, this paper analyzes pid control, acceleration feedback, velocity feedback, input signal differential feedforward, and employs compound control strategy including pid control, velocity feedback, position feedback and input signal differential feedforward,
針對模擬轉臺低速、高頻響、高精度等性能指標的要求,分析了pid控制策略、加速度反饋、速度反饋、輸入信號微分前饋等控制方式,採用pid控制與速度反饋、位置反饋以及輸入信號的微分前饋結合起來的復合控制策略,充分利用反饋和前饋的優勢,對轉臺的位置伺服系統進行研究。Is a kind of miniaturization insert type construction conversion module, between its supply power input signal and output signal are isolated each other, its input ac voltage or ac current can be transformed into ma or v standard signal output. it has accuracy high, linearity good, debug simple, work stable and reliable and so on features, apply to electricity parameter display, record and monitor of the dcs system fields
是一種小型化插裝式結構的轉換模塊,其具有工作電源輸入信號輸出信號三者相互隔離,能將輸入的交流電壓或交流電流轉換成420 ma或15 v標準信號輸出,具有精度高,線性好,調試簡單工作穩定可靠等特點,適用於電量參數的顯示記錄dcs系統的監控等場合。This series products adopted the surface package modularization craft, have improved greatly the anti - interference ability of the instruments, have display, transmit communication, universal signal input function and so on. they apply to indication and control of various physical quantity check signal such as temperature, humidity, pressure liguid level, instantaneous flow, velocity etc., and for various nonlinear input signal can carry out high accuracy linear compensation
本系列產品採用表面封裝模塊化工藝,大大提高了儀表的抗干擾能力,具有顯示控制變送通訊萬能信號輸入等功能,適用於溫度濕度壓力液位瞬時流量速度等多種物理量檢測信號的顯示及控制,並能對各種非線性輸入信號進行高精度的線性校正。分享友人