【導(dǎo)讀】本設(shè)計實現(xiàn)了對不同濃度酒精的檢測和顯示，通過適當(dāng)改進可以用于檢測酒后駕車。信號；用于顯示濃度的數(shù)碼管顯示模塊。軟件方面，主要研究了電壓到濃度的線性轉(zhuǎn)。對設(shè)計的傳感器進行了標(biāo)定。體反應(yīng)靈敏，能在有效范圍內(nèi)測量它的濃度值。并且在檢測低濃度酒精時誤差較小，最大。本設(shè)計的特色在于標(biāo)準的確定。對于流動空氣，樣品的穩(wěn)定性和水蒸氣的影響，提出。了解決方案和驗證方法。對不同的區(qū)間濃度和電壓轉(zhuǎn)換關(guān)系做線性化處理，簡化了硬件電。特殊場合酒精檢測都可以使用。

　　

【正文】 m) { switch (num) { case 1: if (Threshold255) Threshold++。 break。 case 2: if (Threshold1) Threshold。 break。 default: break。 } L1602_int(2,9,Threshold)。 Save_Setting()。 } void main() { uint i,j。 EA = 0。 Data_Init()。 //數(shù)據(jù)初始化 Timer0_Init()。 //定時器 0初始化 Port_Init()。 //端口初始化 ADC_Init()。 //ADC初始化 EA = 1。 L1602_init()。 L1602_string(1,1,Wele to ALCT! )。 L1602_string(2,1,Designed by AAA )。 //延時 for (i=0。i1000。i++) for (j=0。j1000。j++) {。} //清屏 L1602_string(1,1, )。 L1602_string(2,1, )。 L1602_string(1,1,Alcohol: mg/L)。 L1602_string(2,1,Thresho: mg/L)。 畢業(yè)設(shè)計用紙 第 27頁 共 28 頁 //載入設(shè)定值 Load_Setting()。 L1602_int(2,9,Threshold)。 while(1) { //如果 FlagStartAL標(biāo)志置位，則進行 AD轉(zhuǎn)換 if (FlagStartAL == 1) { //酒精濃度換算， 50mg/L=，傳感器靈敏度應(yīng)事先校準 ALValue = 500 * GetADVal() / 256。 //8 位 ADC，首先得到電壓值，單位 10毫伏 ALValue = ALValue K_ZERO。 //首先減去零點漂移，一般是 130mV if (ALValue 0) ALValue = 0。 ALValue = ALValue * K_MG_MV。 //將 mV 轉(zhuǎn)變成 mg/L， K_MG_MV 系數(shù)需要校準 L1602_int(1,9,ALValue)。 if (ALValue Threshold) Led_Warn1 = 0。 //超過閾值，則 Led_Warn1燈報警，否則報警燈滅。 else Led_Warn1 = 1。 FlagStartAL = 0。 } //查詢乙醇傳感器 TTL電平，該指示燈為傳感器模塊報警 if (DOUT == 0) Led_Warn2 = 0。 else Led_Warn2 = 1。 //鍵盤查詢，在彈起時響應(yīng) if ((Key_Up)amp。amp。(keyUp==0)) {FlagKeyPress = 1。 keyvalue = 1。} else if ((Key_Down)amp。amp。(keyDown==0)) {FlagKeyPress = 1。 keyvalue = 2。} if (FlagKeyPress == 1) { KeyProcess(keyvalue)。 FlagKeyPress = 0。 } if (!Key_Up) keyUp = 0。 else keyUp = 1。 if (!Key_Down) keyDown = 0。 else keyDown = 1。 DELAY(100)。 } } 畢業(yè)設(shè)計用紙 第 28頁 共 28 頁 g an employment tribunal claim Employment tribunals sort out disagreements between employers and employees. You may need to make a claim to an employment tribunal if: ? you don39。t agree with the disciplinary action your employer has taken against you ? your employer dismisses you and you think that you have been dismissed unfairly. For more information about dismissal and unfair dismissal, see Dismissal. You can make a claim to an employment tribunal, even if you haven39。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept it. If you are worried about how the time limits apply to you, take advice from one of the anisations listed under Further help. Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the anisations listed under Further help. If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。t charge you more than 35% of your pensation if you win the case. If you are thinking about signing up for a damagesbased agreement, you should make sure you39。re clear about the terms of the agreement. It might be best to get advice from an experienced adviser, for example, at a Citizens Advice Bureau. To find your nearest CAB, including those that give advice by , click on nearest CAB. For more information about making a claim to an employment tribunal, see Employment tribunals. The (lack of) air up there Watch mCayman Islandsbased Webb, the head of Fifa39。s antiracism taskforce, is in London for the Football Association39。s 150th anniversary celebrations and will attend City39。s Premier League match at Chelsea on Sunday. I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport. For me it39。s about how he felt and I would like to speak to him first to find out what his experience was. Uefa has opened disciplinary proceedings against CSKA for the racist behaviour of their fans during City39。s 21 win. Michel Platini, president of European football39。s governing body, has also ordered an immediate investigation into the referee39。s actions. CSKA said they were surprised and disappointed by Toure39。s plaint. In a statement the Russian side added: We found no racist insults from fans of CSKA. 畢業(yè)設(shè)計用紙 第 29頁 共 28 頁 Age has reached the end of the beginning of a word. May be guilty in his seems to passing a lot of different life became the appearance of the same day。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it. 一字開頭的年 齡已經(jīng)到了尾聲?；蛟S是愧疚于自己似乎把轉(zhuǎn)瞬即逝的很多個不同的日子過成了同一天的樣子；或許是追溯過去，對自己那些近乎偏執(zhí)的怪異信念的醒悟，這些天以來，思緒一直很凌亂，在腦海中不斷糾纏?？傆X得自己自己似乎應(yīng)該去做點什么，或者寫點什么。二十年的人生軌跡深深淺淺，突然就感覺到有些事情，非做不可了。 The