為滿足礦井安全生產要求,介紹了一種以AT89C51單片機為主控器,對環(huán)境空氣的溫度、有毒易燃氣體的濃度等進行檢測的監(jiān)控系統(tǒng)。該系統(tǒng)配合外圍電路能實現(xiàn)對上述環(huán)境指標的控制并存儲相關數(shù)據(jù)與上位PC機通信。它采用硬件抗干擾和軟件抗干擾技術,以確保整個系統(tǒng)工作的準確性。
Abstract:
In order to meet the needs of mine produce safety,a kind of intellignet mine ambient monotoring and control system based on AT89C51 is introduced.This system can detect the temperature of ambient of mine,the density of poisonous inflammable gas,combined external circuit.With its function part, this system can change above-mentioned elements.
針對眾多低成本數(shù)據(jù)采集需求,采用帶有片上USB控制器和D/A轉換器的混合信號微處理器C8051F340,設計了一款可通過USB接口和LabVIEW圖形用戶界面實現(xiàn)與PC機聯(lián)機的數(shù)據(jù)采集器,同時借助系統(tǒng)的SD卡存儲獨立實現(xiàn)現(xiàn)場長時間采集數(shù)據(jù)。該數(shù)據(jù)采集器成本低,結構簡單,體積小,已成功用于工業(yè)現(xiàn)場。
Abstract:
Aiming at the need of low cost data acquisition, a data acquisition device is designed based on C8051F340 which is a mixed-signal microcontroller and integrates USB controller and A/D controller on a chip.The data acquisition device which can combine with PC by USB interface and LabVIEW graphical user interface,can realize data acquisition. At the same time,it can be solely run a long time in virtue of SD card in field.The date aequisition device features low cost,simple structure and little sharp, and it has been used in industry field.
提出了一種基于C8051F320的紅外模擬槍戰(zhàn)系統(tǒng)設計方案。介紹了紅外模擬槍戰(zhàn)系統(tǒng)的構成,給出了硬件選型、系統(tǒng)硬軟件設計。利用紅外抗對系統(tǒng)的工作原理,系統(tǒng)獲得良好效果。
Abstract:
This paper presents the design of simulated gunfight system based on C8051F320.Introduces system structure,and puts forward hardware selection of infrared simulated gunfight system and system hardware and software designs.Using the operation principle of infrared antagonizing system,the system result is good.
基于CC1110單片機公交報站系統(tǒng)主要由CC1110單片機最小系統(tǒng)和WT588D語音模塊組成,提出了如何實現(xiàn)語音報站,通過無線通信SimpliciTI網(wǎng)絡協(xié)議實現(xiàn)公交站臺的自動播報和OLCD液晶顯示公交運行的各類信息。結果表明,該公交報站系統(tǒng)報站準確率99%,價格比同類產品下降了300%以上,系統(tǒng)組成結構簡單,提高了系統(tǒng)的抗干擾性和穩(wěn)定性,也便于攜帶。
Abstract:
The bus stop announcement system based on CC1110 MCU is composed of CC1110 MCU minimum system and WT588D voice module. How to achieve the voice announcing is put forward.The bus-stop will announce automatically and display on the OLCD by means of wireless communication SimpliciTI network protocol. As a result, the bus station stop announcement systems reported 99% accuracy rate, price of similar products declined by 300% or more, system of simple structure, improve the anti-jamming and stability of the power system, it is also portable.
介紹一種以MSP430單片機為基礎的智能頻率測量系統(tǒng),采用硬件邏輯與軟件指令相結合的方式控制閘門,實現(xiàn)0 MHz~10 MHz范圍內無檔切換的等精度測量。
Abstract:
An intelligent frequency measurement system based on MSP430 singlechip is introduced. The system uses a way that can combine hardware logic and software instructions to contronl the strobe ,and completes the functions of equal precision in the range of 0MHz~10MHz without shifting
介紹基于ATmega8型單片機的溫度測量及加熱控制系統(tǒng)。分析系統(tǒng)的工作原理,詳盡討論系統(tǒng)的硬件電路和軟件流程。實驗證明,該系統(tǒng)工作可靠,穩(wěn)定性高。
Abstract:
The new temperature measuring and heating control system based on ATmega8 MCU is introduced.The system’s working principles is analyzed.The design principles of hardware and software are also discussed in detail.This system has been testified and it works steady and reliably.
對于瀝青混凝土攤鋪機自動找平控制系統(tǒng)來說,數(shù)字式控制系統(tǒng)的研制是目前的一個方向。介紹了一種基于CAN總線的數(shù)字式自動找平控制系統(tǒng)。該系統(tǒng)以CAN總線作為通信方式,PWM控制信號通過C8051F040單片機內部PCA可編程計數(shù)器陣列產生,并具有結構簡單、信號穩(wěn)定、實時性強、易擴展的特點。通過硬件實現(xiàn)和系統(tǒng)運行達到了比較理想的控制效果,驗證了系統(tǒng)的可行性。
Abstract:
A digital auto-leveling control system based on CAN Bus is introduced.It uses CAN Bus as the method of communication and creates PWM signals by programmable counter array in C8051F040 microcontroller. The system is simple, stable, real-time and expansive.
針對船舶氣象儀保障維修而設計的船舶氣象儀測試系統(tǒng),包括信息處理終端、主儀器檢測模塊、傳感器檢測模塊,各個模塊都采用基于AVR單片機的嵌入式系統(tǒng),模塊之間通過CAN總線進行通信。結果表明,船舶氣象儀測試系統(tǒng)能夠快速檢測船舶氣象儀故障,與單純依靠人工方式排查故障相比,故障檢測時間縮短了60%以上。
Abstract:
The test system of ship meteorological instrument was developed to satisfy the maintenance of ship meteorological instruments,which composed of information processing terminal, testing module of main instrument and testing module of sensors. Each of these modules included an embedded system based on microcontroller of AVR series and communicated with other module by CAN bus. The results show that the test system can judge the fault of ship meteorological instrument quickly and shorten the fault detection time as much as 60% compared with simple manual troubleshooting.
基于ADSP-BF561的數(shù)字攝像系統(tǒng)設計Design of Digital Video Camera System Based on Digital Signal ProcessorADSP-BF561(浙江大學 信息與通信工程研究所,浙江 杭州 310027) 馬海杰, 劉云海摘要:介紹了基于ADI雙核的數(shù)字信號處理芯片ADSP-BF561 的數(shù)字攝像系統(tǒng)實現(xiàn)方案。系統(tǒng)包括硬件和軟件兩部分,硬件主要有ADSP-BF561及其外圍電路、音視頻模數(shù)/數(shù)模轉換、CF卡/微硬盤接口等部分。軟件主要有操作系統(tǒng)及音視頻編解碼算法等部分。關鍵詞:ADSP-BF561 ;數(shù)字攝像機;微硬盤;MPEG-4;A/D;D/A中圖分類號:TN948.41文獻標識碼:AAbstract: An implementation of digital video camera system based on ADI dual core digital signal processor ADSP-BF561 is introduced. The system can be divided into two parts——hardware and software design. The hardware design includes ADSP-BF561 and perpheral apparatus, A/D,D/A, CF card or Microdrive and so on. The software includes operating system , audio and video coding algorithm.Key words: ADSP-BF561; digital video camera; microdrive; MPEG-4;A/D;D/A