高通智能手機芯片列表,向大家列舉了高通的眾多芯片
上傳時間: 2013-10-12
上傳用戶:zhliu007
基于大型車輛車身長、倒車有盲區的特點,提出了一種部署簡便的、基于無線射頻信號傳輸方式的智能輔助倒車系統。簡要介紹了超聲波測距原理和本系統設計方案,采用溫度補償方法消除溫度對超聲波測距精度的影響,采用433 MHz無線射頻通信減少雷達主機與顯示器之間布線的不便。本方案實施方便、可靠、實用性強,可在半掛車、掛車、重型載貨汽車和大型客車等不便于布線的車輛上應用推廣,特別適合于車輛輔助倒車系統的后裝市場。
上傳時間: 2013-10-13
上傳用戶:leesuper
這是一個能夠智能斷電的無線充電器
上傳時間: 2013-10-17
上傳用戶:竺羽翎2222
wifi智能小車制作
上傳時間: 2013-10-30
上傳用戶:chenhr
簡述了實現智能機房系統所用的主要技術、設計方法和功能實現,包括通信協議設計、硬件電路設計和軟件設計。系統功能包括控制、檢測和無線通信等,實現了機房電器的控制、環境物理量的檢測、機房安全的防范及通信等功能。同時增加了可無線遙控的智能小車,其上添加各種傳感器,實現傳感器的移動檢測,增加了檢測的靈活性。通過互聯網遙控機房,從而實現遠程控制。經系統測試功能均實現。
上傳時間: 2013-10-30
上傳用戶:李哈哈哈
目錄 一、Smart Phone Market Share 1.1、中國智能手機銷售量與變化狀況 1.2、智能手機操作系統份額走勢 1.3、智能手機銷售價格走勢 二、展訊智能手機方案 三、TI 無線充電方案 四、Freescale G+M二合一 Sensor 五、NXP NFC 六、TI 五合一 無線芯片 展訊智能手機方案框圖
上傳時間: 2014-12-30
上傳用戶:blacklee
智能雷達天線罩可以有效地選擇工作頻率和微波性能。文中從結構研究和材料研究兩個方面綜述了智能雷達天線罩的發展,分析了各種智能雷達天線罩的優缺點和未來的發展趨勢。
上傳時間: 2013-10-24
上傳用戶:born2007
在研究傳統家用燃氣報警器的基礎上,以ZigBee協議為平臺,構建mesh網狀網絡實現網絡化的智能語音報警系統。由于傳感器本身的溫度和實際環境溫度的影響,傳感器標定后采用軟件補償方法。為了減少系統費用,前端節點采用半功能節點設備,路由器和協調器采用全功能節點設備,構建mesh網絡所形成的家庭內部報警系統,通過通用的電話接口連接到外部的公用電話網絡,啟動語音模塊進行報警。實驗結果表明,在2.4 GHz頻率下傳輸,有墻等障礙物的情況下,節點的傳輸距離大約為35 m,能夠滿足家庭需要,且系統工作穩定,但在功耗方面仍需進一步改善。 Abstract: On the basis of studying traditional household gas alarm system, this paper proposed the platform for the ZigBee protocol,and constructed mesh network to achieve network-based intelligent voice alarm system. Because of the sensor temperature and the actual environment temperature, this system design used software compensation after calibrating sensor. In order to reduce system cost, semi-functional node devices were used as front-end node, however, full-function devices were used as routers and coordinator,constructed alarm system within the family by building mesh network,connected to the external public telephone network through the common telephone interface, started the voice alarm module. The results indicate that nodes transmit about 35m in the distance in case of walls and other obstacles by 2.4GHz frequency transmission, this is able to meet family needs and work steadily, but still needs further improvement in power consumption.
上傳時間: 2013-10-30
上傳用戶:swaylong
為了能夠滿足基站易于選址、優質快速的建站要求和易維護、低成本、高可靠的運行要求,本文對以方艙來實現一體化結構基站做出一番探討。從系統設計的觀點闡述了移動通信高性能基站天線設計的幾個關鍵問題,介紹了智能天線技術在基站中的應用,并且用HFSS軟件仿真了一種新型的對稱陣子天線,該天線駐波比小于2的帶寬可以達到60%,具有良好的寬頻帶特性。 Abstract: In order to meet the station construction requirement of easy site selection and fast base station, and meet the operational requirement of easy maintenance, low cost and high reliability, this paper discussed the unified architecture base station using shelter. Several key problems of high performance mobile communication base station antenna were illustrated from the view of system design, the application of smart antenna in base station was also introduced. And a novel dipole antenna was simulated by using HFSS, the VSWR of the antenna is less than 2, and the bandwidth was reach to 60%. So it has good broadband properties.
上傳時間: 2013-11-20
上傳用戶:linlin
闡述了軌道交通列車定位技術。介紹了在軌道交通系統中列車定位技術的功能,國內外軌道交通中主要采用的列車定位方法,重點論述了幾種主要定位技術,并從定位精度、閉塞制式、維護投資成本、抗干擾等方面進行分析比較。提出目前軌道交通定位技術應綜合運用,取長補短,多種方法相互融合,才能滿足軌道交通中對安全可靠性的要求。 Abstract: Rail train positioning technology is described. The paper introduces the funetions of the train positioning technology in the rail transit system, the main methods of train positioning do mestic and international rail, and focuses on several key methods, analyzes and compares from the positioning accuracy, block system, maintenance and investment cost, interference and so on, suggested that the current rail positioning technology should be integrated use of positioning method of meriging, learn from each other, to meet the reliability requirements of rail safety.
上傳時間: 2013-11-25
上傳用戶:franktu