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高通(Qualcomm)藍(lán)牙芯片QCC5151_硬件設(shè)計(jì)詳細(xì)指導(dǎo)書(官方內(nèi)部培訓(xùn)手冊(cè))共52頁(yè)其內(nèi)容是針對(duì)硬件設(shè)計(jì)、部分重要元器件選擇(ESD,F(xiàn)ilter)及走線注意事項(xiàng)的詳細(xì)說(shuō)明。2 Power management 2.1 SMPS 2.1.1 Components specification 2.1.2 Input power supply selection 2.1.3 Minimize SMPS EMI emissions 2.1.4 Internal LDOs and digital core decoupling 2.1.5 Powering external components 2.2 Charger 2.2.1 Charger connections.2.2.2 General charger operation2.2.3 Temperature measurement during charging 2.3 SYS_CTRL 3 Bluetooth radio3.1 RF PSU component choice 3.2 RF band-pass filter3.3 Layout (天線 走線的注意事項(xiàng))4 Audio4.1 Audio bypass capacitors 4.2 Earphone speaker output4.3 Line/Mic input 4.4 Headphone output optimizition5 LED pads 5.1 LED driver 5.2 Digital/Button input 5.3 Analog input5.4 Disabled 6 Reset pin (Reset#)7 QSPIinterface 8 USB interfaces 8.1 USB device port8.1.1 USB connections8.1.2 Layout notes8.1.3 USB charger detection
標(biāo)簽:
qualcomm
藍(lán)牙芯片
qcc5151
上傳時(shí)間:
2022-01-24
上傳用戶:XuVshu
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The PW3130 series product is a high integration solution for lithium-lion/polymer batteryprotection.PW3130 contains advanced power MOSFET, high-accuracy voltage detection circuits anddelay circuits. PW3130 is put into an ultra-small SOT23-5 package and only one external componentmakes it an ideal solution in limited space of battery pack. PW3130 has all the protection functionsrequired in the battery application including overcharging, overdischarging, overcurrent and loadshort circuiting protection etc. The accurate overcharging detection voltage ensures safe and fullutilization charging.The low standby current drains little current from the cell while in storage. Thedevice is not only targeted for digital cellular phones, but also for any other Li-Ion and Li-Polybattery-powered information appliances requiring long-term battery life
標(biāo)簽:
pw3130
上傳時(shí)間:
2022-02-11
上傳用戶:fliang
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用三點(diǎn)法實(shí)現(xiàn)機(jī)器人三維位置測(cè)量的研究摘 要 :提 出 了一 種 微 小 爬 壁 機(jī) 器 人 三 維 位 置 測(cè) 量 的新
方 法 。筆 者 通 過(guò) 深 入 分 析 研 究各 種 位 置 測(cè) 控 方 法 與 系
統(tǒng) ,提 出采 用單 目視 覺(jué)方 法 中的 聚 焦法 ,以 CCD作 為
傳 感 器 ,用 三 點(diǎn) 法 實(shí)現(xiàn) 對(duì) 機(jī) 器 人 的 三 維 位 置 測(cè) 量 。 驗(yàn)
證性 實(shí)驗(yàn) 結(jié)果表 明 ,本研 究提 出的測(cè) 量原 理和 系統(tǒng)是
正 確 可行 的 。
關(guān)鍵詞 :機(jī) 器人 ;位置 測(cè)量 ;CCD傳 感 器 ;單 目視 覺(jué) ;攝
像 機(jī) 標(biāo) 定
中 圖分 類 號(hào) :TP242.6
文 獻(xiàn) 標(biāo) 識(shí) 碼 :B
Abstract:A new 3D position measurementmethod Ofa
wall—climbing micro robothas been researched.Researc—
hing on the various position measuring and controlling
method,theauthorhasputforwardanewprojecttomeas—
ure the 3D position of the robot,in which the focusing
method with singlecamera and CCD sensorhasbeen used
to getthe position information.The elementary experiment
has verified the principle and the system.
Key words:robot;position detection;CCD sensor;single
camera vision;camera caiibration
位置測(cè)量技 術(shù)是智 能機(jī) 器人 的關(guān)鍵 技術(shù) ,是各 種
機(jī)器人控 制系統(tǒng) 中極 為重 要 的環(huán)節(jié) ,也 是 國(guó)內(nèi)外研 究
的熱點(diǎn)所 在。
按 照測(cè)試 系統(tǒng) 與被 測(cè)機(jī) 器 人 的關(guān) 系 ,可 以將位 置
測(cè)量技術(shù) 分為接觸 式和非接觸式 兩大類 。接觸 式測(cè)量
系統(tǒng) 由于在測(cè) 量過(guò)程 中或多或少地 對(duì)機(jī)器人施 加 了載
荷 ,因而僅適用于靜 態(tài) 位置測(cè) 量 。而動(dòng) 態(tài) 位 置測(cè)量 系
統(tǒng) 主要分 5類 :①激光跟蹤 系統(tǒng) ;@ CCD交 互測(cè)量
收 稿 日期 :2001—07—03
基 金項(xiàng) 目:國(guó)家 863高科技 研 究 資助 項(xiàng) 目(9804-06);教 育 部 高
等 學(xué)校 骨干教 師 資助 計(jì) 3t,j項(xiàng) 目
作者 簡(jiǎn) 介 :張 智海 (1973一 ),男 ,工 學(xué)碩 士 ,主 要 研 究 方 向 為 智
能 機(jī) 器人 測(cè) 控 技 術(shù) 。
系統(tǒng) ;③ 超聲波 測(cè)量 系統(tǒng) ;④ PSD(positionsensitivede—
vice)位 置 測(cè) 量 系統(tǒng) ;⑤ 帶 有 接 近覺(jué) 傳 感 器 的 測(cè)量 系
統(tǒng) 。位置測(cè)量 還可 以從另一個(gè)分類 角度劃分為主動(dòng)式
測(cè)量和被動(dòng) 式測(cè) 量 。主動(dòng)式測(cè) 量主要可 以分為結(jié)
構(gòu)光方法和激光 自動(dòng)聚焦法兩類 。被 動(dòng)式測(cè)量 主要 可
以分為雙 目視 覺(jué) 、三 目視覺(jué) 、單 目視覺(jué) 等方法 。
對(duì) 比以上各種方法 的 優(yōu)缺 點(diǎn) ,針對(duì) 筆者 研制 的微
小爬壁機(jī)器人 的空 間三 維位 置 測(cè)量 的要 求 ,測(cè)量 系統(tǒng)
必須滿足尺 寸小 、分 辨率 高 、穩(wěn)定 性 和可 靠性 好 、時(shí) 間
響應(yīng)快等特 點(diǎn) ,提 出了采用 單 目視覺(jué)方法 中的聚焦法 ,
選用 CCD作 為傳感器 ,用 三點(diǎn)法實(shí)現(xiàn)對(duì)機(jī)器人 的三維
位置測(cè)量 ,并用 Matlab和 V
標(biāo)簽:
機(jī)器人
上傳時(shí)間:
2022-02-12
上傳用戶:
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電子書-RTL Design Style Guide for Verilog HDL540頁(yè)A FF having a fixed input value is generated from the description in the upper portion of
Example 2-21. In this case, ’0’ is output when the reset signal is asynchronously input,
and ’1’ is output when the START signal rises. Therefore, the FF data input is fixed at
the power supply, since the typical value ’1’ is output following the rise of the START
signal.
When FF input values are fixed, the fixed inputs become untestable and the fault detection rate drops. When implementing a scan design and converting to a scan FF, the scan
may not be executed properl not be executed properly, so such descriptions , so such descriptions are not are not recommended. recommended.[1] As in the lower
part of Example 2-21, be sure to construct a synchronous type of circuit and ensure that
the clock signal is input to the clock pin of the FF.
Other than the sample shown in Example 2-21, there are situations where for certain
control signals, those that had been switched due to the conditions of an external input
will no longer need to be switched, leaving only a FF. If logic exists in a lower level and a
fixed value is input from an upper level, the input value of the FF may also end up being
fixed as the result of optimization with logic synthesis tools. In a situation like this, while
perhaps difficult to completely eliminate, the problem should be avoided as much as possible.
標(biāo)簽:
RTL
verilog hdl
上傳時(shí)間:
2022-03-21
上傳用戶:canderile
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本系統(tǒng)采用電動(dòng)機(jī)電樞供電回路串接采樣電阻的方式來(lái)實(shí)現(xiàn)對(duì)小型直流有刷電動(dòng)機(jī)的轉(zhuǎn)速測(cè)量。該系統(tǒng)主要由二階低通濾波電路,小信號(hào)放大電路、單片機(jī)測(cè)量顯示電路、開(kāi)關(guān)穩(wěn)壓電源電路等組成。同時(shí)自制電機(jī)測(cè)速裝置,用高頻磁環(huán)作為載體,用線圈繞制磁環(huán),利用電磁感應(yīng)原理檢測(cè)電機(jī)運(yùn)行時(shí)的漏磁,將變化的磁場(chǎng)信號(hào)轉(zhuǎn)化為磁環(huán)上的感應(yīng)電流。用信號(hào)處理單元電路將微弱電信號(hào)轉(zhuǎn)化為脈沖信號(hào),送由單片機(jī)檢測(cè),從而達(dá)到準(zhǔn)確測(cè)量電機(jī)的速度的要求。In this system, the sampling resistance of armature power supply circuit is connected in series to measure the speed of small DC brush motor. The system is mainly composed of second-order low-pass filter circuit, small signal amplifier circuit, single-chip measurement and display circuit, switching regulated power supply circuit and so on. At the same time, the self-made motor speed measuring device uses high frequency magnetic ring as the carrier, coil winding magnetic ring, and electromagnetic induction principle to detect the leakage of magnetic field during the operation of the motor, which converts the changed magnetic field signal into the induced current on the magnetic ring. The weak electric signal is transformed into pulse signal by signal processing unit circuit, which is sent to single chip computer for detection, so as to meet the requirement of accurate measurement of motor speed.
標(biāo)簽:
直流電動(dòng)機(jī)
上傳時(shí)間:
2022-03-26
上傳用戶:
-
近年來(lái)反季節(jié)種植已成火熱趨勢(shì),溫室大棚的普及十分迅速,而溫室大棚對(duì)自動(dòng)化、智能化的要求也越來(lái)越迫切,本系統(tǒng)將溫室大棚的溫濕度、二氧化碳濃度各個(gè)方面的檢測(cè),通風(fēng)、澆灌、溫度、噴灑農(nóng)藥等各個(gè)方面的控制進(jìn)行綜合系統(tǒng)研究,實(shí)現(xiàn)溫室大棚對(duì)自動(dòng)化、智能化的要求。這一系統(tǒng)是基于單片機(jī)控制的智能檢測(cè),控制系統(tǒng)包含單片機(jī)主控模塊、感應(yīng)檢測(cè)模塊、傳感模塊,顯示、控制模塊等[1]。從而提高溫室大棚的種植效率,減少勞動(dòng)力,提高利潤(rùn)等。In recent years,counter-season planting has become a hot trend featuring the rapid popularization of greenhouse and urgent requirement for the automation and intellectualization of greenhouse.This paper offers a comprehensive and systematic study of the monitoring of temperature,humidity and carbon dioxide concentration in the greenhouse and the control of ventilation,irrigation,temperature and pesticide spraying in order to achieve automation and intellectualization in greenhouse.This system is based on the intelligent detection controlled by single chip computer with the control system including the main control module,induction detection module,sensing module,display and control module of single chip computer,which is effective in improving planting efficiency of greenhouse,reducing labor force and increasing profits.
標(biāo)簽:
智能溫室大棚
控制系統(tǒng)
上傳時(shí)間:
2022-03-27
上傳用戶:
-
在半導(dǎo)體制冷技術(shù)的工作性能及其優(yōu)缺點(diǎn)研究的基礎(chǔ)上,設(shè)計(jì)了以單片機(jī)為核心控制元件,以TEC1-12706為執(zhí)行元件的半導(dǎo)體制冷溫度控制系統(tǒng)。采用高精度分段式PID控制算法配合PWM輸出控制的方法實(shí)現(xiàn)溫度控制;選擇數(shù)字傳感器DS18B20為溫度檢測(cè)元件,還包含1602液晶顯示模塊、按鍵調(diào)整輸入模塊和H橋驅(qū)動(dòng)模塊等。實(shí)際測(cè)試表明,該系統(tǒng)結(jié)構(gòu)簡(jiǎn)單易行,操作方便,工作性能優(yōu)良,同時(shí)針對(duì)該系統(tǒng)專門設(shè)計(jì)的溫控算法,使半導(dǎo)體制冷器能更好地適應(yīng)不同工況而充分發(fā)揮其制冷制熱工作特性。Based on the study of the performance and advantages and disadvantages of thermoelectric cooler(TEC)technology,a thermoelectric cooling temperature control system with single-chip microcomputer as the core control element and TEC1-12706 as the executive element was designed. High precision piecewise PID control algorithm combined with PWM output control method is adopted to realize temperature control. The digital sensor DS18B20 is selected as the temperature detection element. It also includes 1602 LCD module,key adjustment input module and H bridge drive module. The actual test shows that the system has simple structure,convenient operation and excellent performance. Meanwhile,the temperature control algorithm specially designed for the system can make the semiconductor cooler better adapt to different working conditions and give full play to its refrigeration and heating characteristics.
標(biāo)簽:
半導(dǎo)體
溫度控制系統(tǒng)
上傳時(shí)間:
2022-03-27
上傳用戶:
-
溫度控制如今已成為當(dāng)代社會(huì)研究的熱點(diǎn)之一,而溫度檢測(cè)在現(xiàn)代設(shè)備參數(shù)檢測(cè)中也是一項(xiàng)極其重要的技術(shù),應(yīng)用十分廣泛。與傳統(tǒng)的測(cè)溫方法相比,紅外測(cè)溫方法具有時(shí)間短、精度高、使用簡(jiǎn)單方便等優(yōu)點(diǎn)。本文以環(huán)境溫度為被測(cè)對(duì)象,設(shè)計(jì)了以STC89C52單片機(jī)為控制中心的紅外測(cè)溫裝置,能夠?qū)崿F(xiàn)對(duì)目標(biāo)溫度的實(shí)時(shí)采集、處理、顯示和報(bào)警等功能。本設(shè)計(jì)主要是由STC89C52單片機(jī)、紅外測(cè)溫傳感器、LCD1602液晶顯示器、按鍵和蜂鳴器等部分組成,采用非接觸的方式對(duì)目標(biāo)溫度進(jìn)行實(shí)時(shí)檢測(cè)。Temperature control has become one of the hotspots in contemporary social research,and temperature detection is an extremely important technology in modern equipment parameter detection.Compared with traditional method,the infrared temperature measuring method has advantages of short time,high precision and convenient operation,etc.This paper consider environment temperature as research objects and designs an infrared temperature measuring device which employs the STC89C52singlechipas-control center,and it can realize timely collection,processing,display and alarm function of the target temperature.The design is mainly composed of STC89C52 singlechip,infrared temperature sensor,LCD1602monitor,keys and buzzer,etc.This design detects the target temperature by non-contact method.
標(biāo)簽:
單片機(jī)
紅外測(cè)溫
上傳時(shí)間:
2022-03-27
上傳用戶:jiabin
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本系統(tǒng)基于STM32單片機(jī)設(shè)計(jì)的非接觸式電流檢測(cè)控制系統(tǒng),通過(guò)OPA548片將所給任意信號(hào)放大,由100Ω電阻和INA128芯片進(jìn)行電流電壓轉(zhuǎn)換放大后,利用STM32單片機(jī)對(duì)獲取的電壓信號(hào)以0.488μs頻率采樣,利用STM32單片機(jī)的FFT庫(kù),獲得信號(hào)的諧波信息。測(cè)量電流信號(hào)精準(zhǔn),該設(shè)計(jì)可廣泛應(yīng)用在以STM32單片機(jī)為核心控制器件的新型儀表中,性能精準(zhǔn)且抗干擾能力強(qiáng)。This system is a non-contact current detection and control system based on STM32 single chip microcomputer. It amplifiesany signal through OPA548 chip, converts and amplifies the current and voltage by 100 Ω resistance and INA128 chip. The obtainedvoltage signal is sampled at the frequency of 0.488 μs by STM 32 single chip microcomputer, and the harmonic information of the signalis obtained by the FFT library of STM 32 single chip microcomputer. The measurement of current signal is accurate. This design can bewidely used in a new instrument with STM 32 single chip microcomputer as its core control device, with accurate performance and stronganti-interference capability.
標(biāo)簽:
stm32
單片機(jī)
上傳時(shí)間:
2022-03-27
上傳用戶:
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本論文是依托“985”工程超寬帶全中頻比幅比相測(cè)向系統(tǒng)研制項(xiàng)目,在原有經(jīng)典雷達(dá)接收機(jī)系統(tǒng)設(shè)計(jì)方案的基礎(chǔ)上,結(jié)合測(cè)向系統(tǒng)的工作原理和測(cè)向要求,采用四通道一次變頻超外差設(shè)計(jì)方案,基于MC和MMC器件分模塊設(shè)計(jì)了一個(gè)雷達(dá)接收機(jī),并對(duì)該接收機(jī)的頻率源進(jìn)行了研制論文首先針對(duì)該接收機(jī)系統(tǒng)的指標(biāo)要求,進(jìn)行了系統(tǒng)的變頻分析以及鏈路的指標(biāo)分配和核算,對(duì)接收機(jī)進(jìn)行了系統(tǒng)級(jí)設(shè)計(jì)和功能模塊規(guī)劃。下變頻電路是整個(gè)接收機(jī)系統(tǒng)的主要組成部分。論文選用雙平衡混頻器,并對(duì)下變頻電路中各個(gè)功能模塊,包括耦合電路、低噪聲放大電路、混頻電路、中頻放大電路和中頻濾波電路以及其本振信號(hào)功分電路和測(cè)試信號(hào)功分電路進(jìn)行了設(shè)計(jì)和測(cè)試。在此基礎(chǔ)上,還完成了下變頻電路的結(jié)構(gòu)布局和電磁兼容設(shè)計(jì)。頻率源已成為雷達(dá)接收機(jī)系統(tǒng)的乃至整個(gè)雷達(dá)系統(tǒng)十分關(guān)鍵的技術(shù)。論文采用直接數(shù)字頻率合成器(DDs)和鎖相環(huán)(PLL)相結(jié)合的頻率合成方案,完成了頻率合成器,包括DDS、PLL以及其基于ARM的控制電路的設(shè)計(jì)和測(cè)試對(duì)接收機(jī)及其頻率源的測(cè)試結(jié)果表明:系統(tǒng)工作狀態(tài)正常,基本滿足設(shè)計(jì)要求。21世紀(jì)進(jìn)入高技術(shù)兵器時(shí)代,武器裝備的自動(dòng)化和智能化是其發(fā)展的主要趨勢(shì)。智能化武器中最為突出的是精確制導(dǎo)和無(wú)人機(jī),其精確的探測(cè)技術(shù)是由一個(gè)建立在一定體制上的測(cè)向系統(tǒng)完成,因而現(xiàn)代電子戰(zhàn)對(duì)測(cè)向系統(tǒng)的準(zhǔn)確性要求越來(lái)越高。在眾多的測(cè)向體制中,比幅比桕測(cè)向具有系統(tǒng)設(shè)備少、易實(shí)現(xiàn)、通道的致性好及抗干擾性高等優(yōu)點(diǎn),被廣泛使用于電子偵察設(shè)備。在這樣一個(gè)測(cè)向系統(tǒng)中,雷達(dá)接收機(jī)是一個(gè)重要的組成部分。雷達(dá)(RADAR)詞源于美國(guó)海軍在1940年第二次世界大戰(zhàn)中使用的一個(gè)保密代號(hào),它是無(wú)線電探測(cè)和測(cè)距(Radio detection and Ranging)的英文縮寫,即用無(wú)線電方法發(fā)現(xiàn)目標(biāo)并測(cè)定它們?cè)诳臻g的位置,因此雷達(dá)也稱為“無(wú)線電定位”。隨著雷達(dá)技術(shù)的發(fā)展,雷達(dá)的基本任務(wù)不僅僅是從探測(cè)目標(biāo)中提取諸如目標(biāo)距離,角坐標(biāo)(方位角和俯仰角),而且還包括測(cè)量目標(biāo)的速度,以及從目標(biāo)回波中獲取更多目標(biāo)反射特性等方面的信息。
標(biāo)簽:
接收機(jī)
上傳時(shí)間:
2022-03-29
上傳用戶:slq1234567890