ARINC429總線協(xié)議是美國(guó)航空電子工程委員會(huì)(Airlines Engineering Committee)于1977年7月提出的,并于同年發(fā)表并獲得批準(zhǔn)使用,它的全稱是數(shù)字式信息傳輸系統(tǒng)(Digital Information Transmission System ) 。協(xié)議標(biāo)準(zhǔn)規(guī)定了航空電子設(shè)備及有關(guān)系統(tǒng)間的數(shù)字信息傳輸要求。ARINC429廣泛應(yīng)用在先進(jìn)的民航客機(jī)中,如B-737、B-757、B-767,俄制軍用飛機(jī)也選用了類似的技術(shù)。 ARINC429總線結(jié)構(gòu)簡(jiǎn)單、性能穩(wěn)定,抗干擾性強(qiáng)。最大的優(yōu)勢(shì)在于可靠性高。飛機(jī)上的ARINC429數(shù)據(jù)總線,用于在系統(tǒng)和設(shè)備之間傳送上千種不同類型的參數(shù),如航向、真空速、馬赫數(shù)等。
標(biāo)簽: 429總線協(xié)議
上傳時(shí)間: 2016-08-17
上傳用戶:w50403
小提琴音樂(lè)鑒賞論文 課程作業(yè) 《四季》欣賞
標(biāo)簽: 論文
上傳時(shí)間: 2016-11-22
上傳用戶:rocket1122
#include <malloc.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #define NULL 0 #define MaxSize 30 typedef struct athletestruct /*運(yùn)動(dòng)員*/ { char name[20]; int score; /*分?jǐn)?shù)*/ int range; /**/ int item; /*項(xiàng)目*/ }ATH; typedef struct schoolstruct /*學(xué)校*/ { int count; /*編號(hào)*/ int serial; /**/ int menscore; /*男選手分?jǐn)?shù)*/ int womenscore; /*女選手分?jǐn)?shù)*/ int totalscore; /*總分*/ ATH athlete[MaxSize]; /**/ struct schoolstruct *next; }SCH; int nsc,msp,wsp; int ntsp; int i,j; int overgame; int serial,range; int n; SCH *head,*pfirst,*psecond; int *phead=NULL,*pafirst=NULL,*pasecond=NULL; void create(); void input () { char answer; head = (SCH *)malloc(sizeof(SCH)); /**/ head->next = NULL; pfirst = head; answer = 'y'; while ( answer == 'y' ) { Is_Game_DoMain: printf("\nGET Top 5 when odd\nGET Top 3 when even"); printf("\n輸入運(yùn)動(dòng)項(xiàng)目序號(hào) (x<=%d):",ntsp); scanf("%d",pafirst); overgame = *pafirst; if ( pafirst != phead ) { for ( pasecond = phead ; pasecond < pafirst ; pasecond ++ ) { if ( overgame == *pasecond ) { printf("\n這個(gè)項(xiàng)目已經(jīng)存在請(qǐng)選擇其他的數(shù)字\n"); goto Is_Game_DoMain; } } } pafirst = pafirst + 1; if ( overgame > ntsp ) { printf("\n項(xiàng)目不存在"); printf("\n請(qǐng)重新輸入"); goto Is_Game_DoMain; } switch ( overgame%2 ) { case 0: n = 3;break; case 1: n = 5;break; } for ( i = 1 ; i <= n ; i++ ) { Is_Serial_DoMain: printf("\n輸入序號(hào) of the NO.%d (0<x<=%d): ",i,nsc); scanf("%d",&serial); if ( serial > nsc ) { printf("\n超過(guò)學(xué)校數(shù)目,請(qǐng)重新輸入"); goto Is_Serial_DoMain; } if ( head->next == NULL ) { create(); } psecond = head->next ; while ( psecond != NULL ) { if ( psecond->serial == serial ) { pfirst = psecond; pfirst->count = pfirst->count + 1; goto Store_Data; } else { psecond = psecond->next; } } create(); Store_Data: pfirst->athlete[pfirst->count].item = overgame; pfirst->athlete[pfirst->count].range = i; pfirst->serial = serial; printf("Input name:) : "); scanf("%s",pfirst->athlete[pfirst->count].name); } printf("\n繼續(xù)輸入運(yùn)動(dòng)項(xiàng)目(y&n)?"); answer = getchar(); printf("\n"); } } void calculate() /**/ { pfirst = head->next; while ( pfirst->next != NULL ) { for (i=1;i<=pfirst->count;i++) { if ( pfirst->athlete[i].item % 2 == 0 ) { switch (pfirst->athlete[i].range) { case 1:pfirst->athlete[i].score = 5;break; case 2:pfirst->athlete[i].score = 3;break; case 3:pfirst->athlete[i].score = 2;break; } } else { switch (pfirst->athlete[i].range) { case 1:pfirst->athlete[i].score = 7;break; case 2:pfirst->athlete[i].score = 5;break; case 3:pfirst->athlete[i].score = 3;break; case 4:pfirst->athlete[i].score = 2;break; case 5:pfirst->athlete[i].score = 1;break; } } if ( pfirst->athlete[i].item <=msp ) { pfirst->menscore = pfirst->menscore + pfirst->athlete[i].score; } else { pfirst->womenscore = pfirst->womenscore + pfirst->athlete[i].score; } } pfirst->totalscore = pfirst->menscore + pfirst->womenscore; pfirst = pfirst->next; } } void output() { pfirst = head->next; psecond = head->next; while ( pfirst->next != NULL ) { // clrscr(); printf("\n第%d號(hào)學(xué)校的結(jié)果成績(jī):",pfirst->serial); printf("\n\n項(xiàng)目的數(shù)目\t學(xué)校的名字\t分?jǐn)?shù)"); for (i=1;i<=ntsp;i++) { for (j=1;j<=pfirst->count;j++) { if ( pfirst->athlete[j].item == i ) { printf("\n %d\t\t\t\t\t\t%s\n %d",i,pfirst->athlete[j].name,pfirst->athlete[j].score);break; } } } printf("\n\n\n\t\t\t\t\t\t按任意建 進(jìn)入下一頁(yè)"); getchar(); pfirst = pfirst->next; } // clrscr(); printf("\n運(yùn)動(dòng)會(huì)結(jié)果:\n\n學(xué)校編號(hào)\t男運(yùn)動(dòng)員成績(jī)\t女運(yùn)動(dòng)員成績(jī)\t總分"); pfirst = head->next; while ( pfirst->next != NULL ) { printf("\n %d\t\t %d\t\t %d\t\t %d",pfirst->serial,pfirst->menscore,pfirst->womenscore,pfirst->totalscore); pfirst = pfirst->next; } printf("\n\n\n\t\t\t\t\t\t\t按任意建結(jié)束"); getchar(); } void create() { pfirst = (struct schoolstruct *)malloc(sizeof(struct schoolstruct)); pfirst->next = head->next ; head->next = pfirst ; pfirst->count = 1; pfirst->menscore = 0; pfirst->womenscore = 0; pfirst->totalscore = 0; } void Save() {FILE *fp; if((fp = fopen("school.dat","wb"))==NULL) {printf("can't open school.dat\n"); fclose(fp); return; } fwrite(pfirst,sizeof(SCH),10,fp); fclose(fp); printf("文件已經(jīng)成功保存\n"); } void main() { system("cls"); printf("\n\t\t\t 運(yùn)動(dòng)會(huì)分?jǐn)?shù)統(tǒng)計(jì)\n"); printf("輸入學(xué)校數(shù)目 (x>= 5):"); scanf("%d",&nsc); printf("輸入男選手的項(xiàng)目(x<=20):"); scanf("%d",&msp); printf("輸入女選手項(xiàng)目(<=20):"); scanf("%d",&wsp); ntsp = msp + wsp; phead = (int *)calloc(ntsp,sizeof(int)); pafirst = phead; pasecond = phead; input(); calculate(); output(); Save(); }
標(biāo)簽: 源代碼
上傳時(shí)間: 2016-12-28
上傳用戶:150501
設(shè)計(jì)任務(wù) 設(shè)計(jì)方波——三角波——正弦波函數(shù)波形發(fā)生器的原理圖 2.3課程設(shè)計(jì)的要求 1.使用protel設(shè)計(jì)電路原理圖; 2.根據(jù)原理圖生成pcb 3. 寫(xiě)好試驗(yàn)報(bào)告分析原理與制作過(guò)程 4. 課題交流與展示
標(biāo)簽: 函數(shù) 波形發(fā)生器 protel
上傳時(shí)間: 2017-03-10
上傳用戶:fjxychm@qq.com
微機(jī)原理,實(shí)驗(yàn)軟件實(shí)驗(yàn)一 匯編語(yǔ)言程序的調(diào)試與運(yùn)行 一.實(shí)驗(yàn)?zāi)康? 1.學(xué)習(xí)數(shù)據(jù)傳送和算術(shù)運(yùn)算指令的用法 2.熟悉在PC機(jī)上編輯、匯編、連接、調(diào)試和運(yùn)行匯編語(yǔ)言程序的過(guò)程。 二.實(shí)驗(yàn)內(nèi)容 將兩個(gè)多位十進(jìn)制數(shù)相加,要求被加數(shù)和加數(shù)均以ASCII碼形式各自順序存放在DATA1和DATA2為首的5個(gè)內(nèi)存單元中,結(jié)果送回DATA1處。 三.程序框圖
標(biāo)簽: 微機(jī)原理 實(shí)驗(yàn)
上傳時(shí)間: 2017-05-23
上傳用戶:benxiaoxiong
ESP8266 WiFi模塊用戶手冊(cè)V1.0 ESP8266是一款超低功耗的UART-WiFi 透?jìng)髂K,擁有業(yè)內(nèi)極富競(jìng)爭(zhēng)力的封裝尺寸和超低能耗技術(shù),專為移動(dòng)設(shè)備和物聯(lián)網(wǎng)應(yīng)用設(shè)計(jì),可將用戶的物理設(shè)備連接到Wi-Fi 無(wú)線網(wǎng)絡(luò)上,進(jìn)行互聯(lián)網(wǎng)或局域網(wǎng)通信,實(shí)現(xiàn)聯(lián)網(wǎng)功能。 ESP8266封裝方式多樣,天線可支持板載PCB天線,IPEX接口和郵票孔接口三種形式; ESP8266可廣泛應(yīng)用于智能電網(wǎng)、智能交通、智能家具、手持設(shè)備、工業(yè)控制等領(lǐng)域。 更多資料,請(qǐng)?jiān)L問(wèn)安信可開(kāi)源社區(qū) www.ai-thinker.com
標(biāo)簽: 8266 WiFi ESP V1 模塊 用戶手冊(cè)
上傳時(shí)間: 2017-07-07
上傳用戶:硯子兒*
Modbus 協(xié)議是應(yīng)用于電子控制器上的一種通用語(yǔ)言。通過(guò)此協(xié)議,控制器相互之間、控制器經(jīng)由網(wǎng)絡(luò)(例如以太網(wǎng))和其它設(shè)備之間可以通信。它已經(jīng)成為一通用工業(yè)標(biāo)準(zhǔn)。有了它,不同廠商生產(chǎn)的控制設(shè)備可以連成工業(yè)網(wǎng)絡(luò),進(jìn)行集中監(jiān)控
標(biāo)簽: MODBUS RTU 通訊協(xié)議
上傳時(shí)間: 2017-07-11
上傳用戶:c073961
SMT標(biāo)準(zhǔn) 6個(gè)西格瑪是以改善為基礎(chǔ)的標(biāo)準(zhǔn),真正的質(zhì)量控制是要 達(dá)到零缺陷也就是7個(gè)西格瑪,這才是一個(gè)完美的質(zhì)量控制過(guò) 程,但是這只是一個(gè)努力的目標(biāo)。
上傳時(shí)間: 2018-03-14
上傳用戶:chang40703050
簡(jiǎn)單的實(shí)現(xiàn)JPEG圖像壓縮編碼方法一 clear all; RGB=imread('C:\Users\Administrator\Desktop\123.bmp');%讀取內(nèi)存中bmp格式的彩色圖像 I=rgb2gray(RGB);%將彩色圖像轉(zhuǎn)換為灰度圖像 I1=im2double(I);%將圖像變換為雙精度格式 T=dctmtx(8);%處理后返回一個(gè)8*8階的DCT矩陣 B1=blkproc(I1,[8 8],'P1*x*P2',T,T');%對(duì)圖像的每個(gè)8*8子塊應(yīng)用矩陣式‘P1*x*P2(像素塊的處理函數(shù),x是形式參數(shù))進(jìn)行處理,P1=T,P2=T’ mask=[1 1 1 1 0 0 0 0 1 1 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ];%選取10個(gè)DCT系數(shù)重構(gòu)圖像(DCT具有能量集中的性質(zhì),數(shù)據(jù)集中在左上角,故進(jìn)行圖像壓縮時(shí)離散余弦變換矩陣可以舍棄右下角的高頻數(shù)據(jù)) B2=blkproc(B1,[8 8],'P1.*x',mask);%舍棄每個(gè)塊中的高頻系數(shù),達(dá)到壓縮的目的 I2=blkproc(B2,[8 8],'P1*x*P2',T',T);%余弦反變換,重構(gòu)圖像 subplot(2,2,1);imshow(RGB);%原彩色圖像 subplot(2,2,2);imshow(I);%灰度圖像 subplot(2,2,3);imshow(I1);%雙精度灰度圖像 subplot(2,2,4);imshow(I2);%重構(gòu)圖像
標(biāo)簽: matlab
上傳時(shí)間: 2018-03-15
上傳用戶:wlmelody
3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Further advancements for E-UTRA; LTE-Advanced feasibility studies in RAN WG4 (Release 9)
上傳時(shí)間: 2018-04-28
上傳用戶:doforfuture
蟲(chóng)蟲(chóng)下載站版權(quán)所有 京ICP備2021023401號(hào)-1