可燃性氣體檢測(cè)與報(bào)警系統(tǒng)的外文翻譯--使用無(wú)線的可燃?xì)怏w檢測(cè)系統(tǒng)的設(shè)計(jì)(文件)
【正文】 SPI接口。4) when TRX_CE pin is set low, means the data transmission pleted and nRF905 enter idlemode.4）當(dāng)trx_ce引腳設(shè)置低，意味著數(shù)據(jù)傳輸完成，進(jìn)入idlemode nRF905。5) MCU set TRX_CE to 0, and nRF905 enter to idle mode.5）設(shè)置為“0”trx_ce單片機(jī)和nRF905，進(jìn)入空閑模式。工具書(shū)類(lèi)【1】劉氏，陳王Q，H G，吃。[3] Liu Wei, Chen HeXin， Zhang JunWei，etc. Intelligent control and alarm system based on[ 3 ]劉薇，陳合新，張瑋， TC35i。流量測(cè)量?jī)x表，2005,16（3）：135144。圖6無(wú)線數(shù)據(jù)傳輸?shù)牧鞒虉D圖7無(wú)線接收數(shù)據(jù)流程圖 摘要設(shè)計(jì)了一種檢測(cè)可燃?xì)怏w濃度的裝置，具有無(wú)線收發(fā)器功能，可以發(fā)送報(bào)警信息到用戶的移動(dòng)迅速通過(guò)GSM實(shí)驗(yàn)結(jié)果表明，該裝置具有較高的精度，穩(wěn)定性和可靠性。3）當(dāng)nRF905接收相匹配的地址，地址匹配引腳將被設(shè)置高。2）微控制器設(shè)置trx_ce = 1和tx_en = 1刺激shockbursttm nRF905發(fā)送方式。municationsmode是8位異步一個(gè)起始位，8位數(shù)據(jù)位，1位停止。天線部分50Ω單端天線。在系統(tǒng)中，利用溫度傳感器DS1820采集溫度信號(hào)，和用于溫度校正軟件的方法。運(yùn)算放大器連接一個(gè)電阻R7和調(diào)節(jié)D1的電壓跟隨器組成的穩(wěn)壓電路為橋式供電。硬件設(shè)計(jì)信號(hào)采集和調(diào)理電路；圖2顯示了數(shù)據(jù)采集電路。為了提高測(cè)量精度，降低了溫度的影響，設(shè)計(jì)了溫度補(bǔ)償電路采集溫度數(shù)據(jù)。主控部分主要完成數(shù)據(jù)接收，顯示和報(bào)警信息。無(wú)線通信技術(shù)在氣體檢測(cè)領(lǐng)域的應(yīng)用，可以解決在特殊環(huán)境下的遠(yuǎn)程監(jiān)控問(wèn)題，如高溫，低溫，有毒氣體無(wú)法布線。與無(wú)線通信模塊TC35i模塊和GSM網(wǎng)絡(luò)平臺(tái)，我們可以發(fā)送報(bào)警信息到用戶的移動(dòng)迅速。主的任務(wù)是接收數(shù)據(jù)并通過(guò)LED顯示。3) Beacause of AUTO_RETRAN being high, the data of nRF905 is constantly reissued untilTRX_CE=0.4) when TRX_CE pin is set low, means the data transmission pleted and nRF905 enter idlemode.Wireless receiving program. NRF905 data receiving process is as follows:1) When TRX_CE = 1 and TX_EN = 0, nRF905 enters ShockBurstTM receive mode checking constantly and waiting for receiving data.2) When nRF905 detect the carrier having same frequency band, the carrier detect pin will be set high.3) When nRF905 receive a matched address, the address matches pin will be set high.4) When packet correctly received, the word head, address and CRC bits will automatically beremoved, and the data ready pin will be set high.5) MCU set TRX_CE to 0, and nRF905 enter to idle mode.6) When all the data received, nRF905 set data ready pin and address matching pin to 0, andnRF905 turn to shutdown mode or ShockBurstTM transmitmode and receive mode. Wireless data transmission flow chart Wireless data receiving flow chartSummaryDesigned an equipment to detect the concentration of bustible gas, which has wireless transceiver functions and can send the alarm information to user’s mobile promptly through results show that the devices have high precision, stability and reliability. It can meet most applications which need realtime monitoring of bustible gas concentration.References[1] Liu S, Chen Q, Wang H G, eat. Electrical capacitance tomography for gas so
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