鏅傞枔锛�2010-06-28 16:16:23渚嗘簮锛歴hixi
鎽樿锛氳ō瑷堜簡涓€绋熀浜庡祵鍏ュ紡闁嬬櫦(f膩)骞宠嚭鐨勭恫(w菐ng)绲¤闋荤洠(ji膩n)鎺х郴绲�(t菕ng)鐨勮ō瑷堣垏瀵︾従(xi脿n)鏂规锛岀郴绲�(t菕ng)鍩轰簬ATMEL鍏徃鐢熺敘(ch菐n)鐨凙T91RM9200寰檿鐞嗗櫒鐐烘牳蹇�銆傛湰鏂囩郸鍑轰簡绯荤当(t菕ng)鐨勬暣楂旂祼(ji茅)妲�(g貌u)妗嗗湒锛屽垎鏋愬拰瑷▓浜嗙郴绲�(t菕ng)鐨勫瓨鍎叉ā濉娿€佽闋婚噰闆嗘ā濉�銆佸鍦嶉浕璺ā濉娿€傜郸鍑轰簡杌熶欢瑷▓鏂规銆傛脯瑭︾祼(ji茅)鏋滆〃鏄庤┎鏂规鍙豢瓒崇暥鍓嶅绋牬鍚堢殑瑕栭牷鐩�(ji膩n)鎺х殑瑕佹眰銆�
闂滈嵉瑭烇細AT91RM9200 宓屽叆寮忕郴绲�(t菕ng) 瑕栭牷鐩�(ji膩n)鎺�
Hardware Design of One Kind of Embedded Network Video Monitoring System
Li Qian
(Shandong Vocational College of industry Shandong-zibo 256414)
Abstract锛�The article introduces a design and implementation scheme of network video monitoring system based on embedded development platform. The system takes AT91RM9200 microprocessor made in ATMEL's company as the core,and gives out holistic block diagram锛宎nalysis and design of the system memory modules,video capture modules, peripheral circuit modules and software design.Test results show that the program meets a variety of occasions, the current video surveillance needs.
Keywords: AT91RM9200 Embedded System Video Monitoring
涓€銆佸紩瑷€
鎳夌敤宓屽叆寮忕恫(w菐ng)绲℃妧琛撶殑鐩�(ji膩n)鎺х郴绲�(t菕ng)鏄洠(ji膩n)鎺ч牁鍩熸渶鏂扮殑鐧�(f膩)灞曡定鍕�,宓屽叆寮忕恫(w菐ng)绲$洠(ji膩n)鎺х郴绲�(t菕ng)鏄浕瀛愭妧琛撱€佽▓绠楁鎶€琛�銆侀€氫俊鎶€琛撳拰鑷嫊鍖栨妧琛撳揩閫熺櫦(f膩)灞曞苟鐩镐簰绲�(ji茅)鍚堢殑楂樻柊鎶€琛撶敘(ch菐n)鍝�,宓屽叆寮忕恫(w菐ng)绲℃妧琛撴敼璁婁互寰€鐨勭洠(ji膩n)鎺х郴绲�(t菕ng)楂旂郴绲�(ji茅)妲�(g貌u),婊胯冻浜嗙従(xi脿n)浠g洠(ji膩n)鎺х郴绲�(t菕ng)鐨勫彲鎿村睍鎬с€佸垎甯冨紡銆佸鏅傛€х瓑,鍙唬娉涙噳鐢ㄥ湪闆讳俊銆侀浕鍔�銆佷氦閫�銆侀妧琛�銆佹按鍒�銆佹櫤鑳藉ぇ寤堢瓑闋樺煙銆傛鏄湪閫欎竴鑳屾櫙涓�,鏈枃瑷▓浜嗕竴绋祵鍏ュ紡缍�(w菐ng)绲″寲瑕栭牷鐩�(ji膩n)鎺х郴绲�(t菕ng),瑭茬郴绲�(t菕ng)鍦�32浣嶉珮鎬ц兘宓屽叆寮忚檿鐞嗗櫒鍜屽皥鐢ㄨ闋诲绺姱鐗囩殑纭欢骞宠嚭涓�,閲囩敤MPEG-4绶ㄧ⒓鎶€琛�,宓屽叆寮廘inux鎿嶄綔绯荤当(t菕ng)鍜屾祦濯掗珨鎶€琛撻€茶瑷▓銆傚埄鐢ㄦ湰绯荤当(t菕ng)鍙互閫茶缍�(w菐ng)绲℃暩(sh霉)瀛楀寲瑕栭牷鐩�(ji膩n)鎺�,鍏锋湁楂旂⿳灏�銆佸湒鍍忚唱(zh矛)閲忕┅(w臎n)瀹�銆侀仩璺濋洟鐩�(ji膩n)鎺х瓑鍎�(y艒u)榛�,鍏锋湁鑹ソ鐨勬噳鐢ㄨ垏鐧�(f膩)灞曞墠鏅�銆�
鏈枃寰炶闋荤洠(ji膩n)鎺ф妧琛撶殑鐧�(f膩)灞曟鍙插拰宓屽叆寮忕郴绲�(t菕ng)鐨勭従(xi脿n)鐙€鍏ユ墜,鍒嗘瀽浜嗗祵鍏ュ紡缍�(w菐ng)绲¤闋荤洠(ji膩n)鎺х郴绲�(t菕ng)鐩搁棞鎶€琛�,灏嶉€氱敤鐨勫祵鍏ュ紡铏曠悊鍣ㄥ拰灏堢敤瑕栭牷澹撶府鑺墖閫茶浜嗘繁鍏ョ殑鐮旂┒,绲﹀嚭浜嗘暣鍊嬬郴绲�(t菕ng)鐨勮ō瑷堟柟妗堝拰鍔熻兘瑕�(gu墨)鍔�?锛涱媱璋忓帵濞磋皨灏樻槀铔鸿椴濵琛屾繁鍏ヨ(di脿o)鏌ュ彇璀�,鐮旂┒浜嗙洰鍓嶆祦琛岀殑宓屽叆寮忕郴绲�(t菕ng)鍜孧PEG-4灏堢敤瑕栭牷澹撶府鑺墖鏂规,鍦ㄥ祵鍏ュ紡绯荤当(t菕ng)鏂归潰纰哄畾浜嗗湪AT91RM9200鑺墖涓婃(g貌u)寤哄祵鍏ュ紡Web鏈嶅嫏鍣ㄧ殑瑙f焙鏂规銆�
浜屻€佺郴绲�(t菕ng)鐨勭附楂旇ō瑷�
鏁村€嬬恫(w菐ng)绲¤闋荤洠(ji膩n)鎺х郴绲�(t菕ng)閲囩敤C/S绲�(ji茅)妲�(g貌u)锛屽緸涓婚珨涓婂垎鐐哄叐閮ㄥ垎锛氭湇鍕欏櫒绔拰瀹㈡埗绔€傛湇鍕欏櫒绔富瑕佸寘鎷祵鍏ュ紡铏曠悊鍣�銆佹敐鍍忛牠鍙婂叾浠栧鍦嶈紨鍔╄ō鍌�锛屽悓鏅傞倓鍖呭惈閬嬭鍦ㄥ祵鍏ュ紡骞宠嚭涓婄殑閲囬泦銆佸绺垏鍌宠几绋嬪簭锛涘鎴剁鍓囨槸鏅€歅C姗燂紝閫氶亷瀹冮€茶鍦栧儚鎺ユ敹鑸囧洖鏀�銆傜恫(w菐ng)绲¤闋荤洠(ji膩n)鎺х郴绲�(t菕ng)鐨勫熀鏈檿鐞嗘鐞嗭紝鍗冲墠绔殑瑕栭牷鐩�(ji膩n)鎺ф湇鍕欏櫒寰炵従(xi脿n)鍫寸殑鏀濆儚闋崟鐛插鏅傜殑瑕栭牷淇℃伅锛屽绺檿鐞嗗悗鍐嶉€氶亷浠ュお缍�(w菐ng)鍌宠几?sh霉)绔環绔殑鐩�(ji膩n)鎺х祩绔笂銆�
绯荤当(t菕ng)鐨勬暣楂旂祼(ji茅)妲�(g貌u)濡傚湒1鎵€绀猴紝瑕栭牷鍦栧儚閲囬泦鍜屾墦鍖呯櫦(f膩)閫佸湪鏈嶅嫏鍣ㄧ瀹屾垚锛屽湒鍍忕殑鎺ユ敹鑸囧洖鏀惧皣鍦ㄥ鎴剁瀹屾垚銆�
鍦�1銆�绯荤当(t菕ng)绲�(ji茅)妲�(g貌u)鍦�
涓�銆佺郴绲�(t菕ng)鐨勭‖浠惰ō瑷�
绯荤当(t菕ng)閲囩敤妯″鍖栬ō瑷堟柟妗�锛屼富瑕佸寘鎷互涓嬪咕鍊嬫ā濉婏細涓绘帶鍒跺櫒妯″銆佸瓨鍎查浕璺ā濉�銆佸鍦嶆帴鍙i浕璺ā濉�銆侀浕婧愬拰寰╀綅闆昏矾锛屽鍦�2鎵€绀�銆�
鍦�2銆佺郴绲�(t菕ng)纭欢绲�(ji茅)妲�(g貌u)鍦�
1銆丄T91RM9200涓绘帶鍣ㄦā濉�
涓绘帶鍣ㄦā濉婃槸鏁村€嬬郴绲�(t菕ng)鐨勬牳蹇�锛岄伕鐢ㄧ殑鏄疉TMEL鍏徃鐨凙T91RM9200銆傚畠鏄竴娆惧熀浜嶢RM920T 鏍哥殑32浣嶅井鎺у埗鍣ㄣ€傝┎铏曠悊鍣ㄦ渶楂橀亱琛岄牷鐜囧彲閬斿埌200MPS锛屽畠鐨勪綆鍔熻€椼€佺簿绨″拰鍏ㄩ潨鎱�(t脿i)瑷▓鐗瑰垾閬╁悎浜庡皪鎴愭湰鍜屽姛鑰楁晱鎰熺殑鎳夌敤銆侫T91RM9200鎻愪緵浜嗚睈瀵岀殑鐗囧収(n猫i)璩囨簮锛屾敮鎸丩inux锛屾槸鏈郴绲�(t菕ng)鐨勫悎閬╅伕鎿�銆傚畠鑳藉畬鎴愭暣鍊嬬郴绲�(t菕ng)鐨勮(di脿o)搴﹀伐浣�锛屽湪绯荤当(t菕ng)涓婇浕鏅傞厤缃墍鏈夐渶宸ヤ綔鐨勮姱鐗囩殑鍔熻兘瀵勫瓨鍣�锛屽畬鎴愯闋绘祦鐨勭法纰�锛屽苟閫氶亷浠ュお缍�(w菐ng)鎺у埗鍣ㄦ帶鍒剁墿鐞嗗堡鑺墖鐧�(f膩)閫佽闋荤⒓娴併€�
AT91RM9200寰檿鐞嗗櫒鏈€楂樹富闋荤偤180 MHz锛屽叾闆欏悜銆�32浣嶅閮ㄦ暩(sh霉)鎿�(j霉)绺界窔鏀寔8锛�16锛�32浣嶆暩(sh霉)鎿�(j霉)瀵害锛�26浣嶅湴鍧€绺界窔鍙互灏嶆渶澶�64 MB绌洪枔閫茶灏嬪潃銆傜墖鍏�(n猫i)闆嗘垚浜嗛潪甯歌睈瀵岀殑澶栧湇鍔熻兘妯″锛屽寘鎷収(n猫i)瀛樼鐞嗗柈鍏�(MMU)銆佸収(n猫i)閮ㄥ寘鍚�16 KB鐨凷RAM鍜�128 KB鐨凴OM锛�16 KB鐨勬暩(sh霉)鎿�(j霉)绶╁瓨浠ュ強16 KB鐨勬寚浠ょ珐瀛�銆傚叾澶栭儴绺界窔鎺ュ彛鎺у埗鍣�(EBI)锛屾敮鎸丼DRAM锛岄潨鎱�(t脿i)瀛樺劜鍣紝Burst FLASH浠ュ強Compact FLASH銆傜偤浜嗘彁楂樼郴绲�(t菕ng)鎬ц兘閭勬摯灞曚簡浠ヤ笅澶栬ō锛涘寮风殑鏅傞悩鐧�(f膩)鐢熷櫒鑸囬浕婧愮鐞嗘帶鍒跺櫒(PMC)锛涚郴绲�(t菕ng)瀹氭檪鍣�(ST)锛涘鏅傛檪閻�(RTC)锛涢珮绱氫腑鏂锋帶鍒跺櫒(AIC)锛�4鍊�32浣峆IO鎺у埗鍣紱20閫氶亾鐨勫瑷暩(sh霉)鎿�(j霉)鎺у埗鍣�(PDC)锛�10锛�100鍏咮ase-T鍨嬩互澶恫(w菐ng)鍗℃帴鍙�锛�4鍊嬮€氱敤鍚屾锛忕暟姝ヤ覆琛屾敹鐧�(f膩)鍣�(UASRT)浠ュ強JTAG锛廔CE鎺ュ彛绛�銆�
鍦ㄧ郴绲�(t菕ng)涓瑼T91RM9200闇€瑕�1锛�8 V鍜�3锛�3 V闆绘簮锛屽彟澶栵紝澶ч儴鍒嗗鍦嶅櫒浠堕渶瑕�3锛�3 V闆绘簮锛屽皬閮ㄥ垎澶栧湇鍣ㄤ欢閭勯渶瑕�5 V闆绘簮锛屽亣瑷几鍏ラ浕澹撶偤5 V鐩存祦绌�(w臎n)澹撻浕婧�銆傜偤浜嗗緱鍒板彲闈犵殑3锛�3 V闆诲锛屾铏曢伕鐢ㄧ殑闆诲杞�(zhu菐n)鎻涜姱鐗囨槸NCPlll7ST33T3锛屽畠鐨勮几鍏ラ浕澹撶偤5 V锛岃几鍑洪浕澹撶偤3锛�3 V锛屾渶澶ц几鍑洪浕娴佺偤0锛�8 A銆傚悓妯�锛岀偤浜嗗緱鍒板彲闈犵殑1锛�8 V闆诲锛岄伕鐢∟CPlll7STl8T3锛屽畠鐨勮几鍏ラ浕澹撶偤5 V锛岃几鍑洪浕澹撶偤1锛�8 V锛屾渶澶ц几鍑洪浕娴佺偤0锛�8 A銆傜敱浜�3锛�3 V鍜�1锛�8 V灞簬NCPlll7绯诲垪鐨�2鍊嬪浐瀹氳几鍑洪浕澹�锛屾墍浠ヨō瑷堟瘮杓冪啊鍠紝鍙渶瑕佸湪闆昏矾涓垏鑺墖骞惰伅(li谩n)2鍊嬪吀鍨嬪€肩偤10 tlf銆佺殑婵炬尝闆诲鍗冲彲銆�
2銆佺郴绲�(t菕ng)瀛樺劜闆昏矾妯″
涓绘帶鍣ㄩ倓闇€涓€浜涘鍦嶅瓨鍎插柈鍏冨Nor Flash鍜孲DRAM銆侼or Flash 涓寘鍚獿inux 鐨凚ootloader銆佺郴绲�(t菕ng)鍏�(n猫i)鏍�銆佹枃浠剁郴绲�(t菕ng)銆佹噳鐢ㄧ▼搴忎互鍙婄挵(hu谩n)澧冭畩閲忓拰绯荤当(t菕ng)閰嶇疆鏂囦欢绛夌瓑锛屽悓鏅傞倓闋愮暀浜嗕竴閮ㄥ垎绌洪枔浣滅偤鐢ㄦ埗浣跨敤锛汼DRAM璁€瀵€熷害蹇�锛岀郴绲�(t菕ng)閬嬭鏅傛妸瀹冧綔鐐哄収(n猫i)瀛樺柈鍏冧娇鐢ㄣ€傜偤鍏呭垎淇濊瓑绯荤当(t菕ng)鐨勫彲鎿村厖鎬�锛岀郴绲�(t菕ng)瑷▓閲囩敤浜�8M鐨凬or Flash鍜�64M鐨凷DRAM銆�
鍦ㄧ恫(w菐ng)绲¤闋荤洠(ji膩n)鎺х郴绲�(t菕ng)鐨勮ō瑷堜腑锛孎(xi脿n)lash鐢ㄤ簬瀛樻斁鎿嶄綔绯荤当(t菕ng)銆佹枃浠剁郴绲�(t菕ng)鍜岄﹨(q奴)鍕曠▼搴忕瓑锛汼DRAM涓昏鐢ㄤ綔閬嬭宓屽叆寮忔搷浣滅郴绲�(t菕ng)銆佹噳鐢ㄦ湇鍕欑▼搴忓拰鑷ㄦ檪瀛樻斁瑕栭煶闋讳俊鎭�銆侳lash瀛樺劜鍣ㄩ伕鐢ㄧ殑鏄疭pansion鐨凷29AL016D70TF銆傚畠鏄竴鍊�16 Mbit鐨凢lash瀛樺劜鍣�锛屽閲忕偤2锛�097锛�152鍊嬪瓧绡€(ji茅)锛涢噰鐢�48鑵砊SOP灏佽鍜�3锛�0V闆绘簮渚涢浕銆係29AL016D70TF鑸嘓i3510鐨勬帴鍙i€f帴妗嗗湒濡傚湒3鎵€绀恒€傚叾涓�銆侰E#绠¤叧鐐鸿姱鐗囦娇鑳借几鍏ワ紝鐢变簬姝lash鐢ㄤ簬瀛樺劜寮曞皫绋嬪簭锛屾晠姝ゅ紩鑵抽€f帴EBICSlN#锛汷E#绠¤叧鐐鸿几鍑轰娇鑳借几鍏�锛岄€f帴EBIOEN锛汻Y锛廈Y鐐烘簴鍌欐垨蹇欒几鍑虹鑵�锛屾嚫绌�銆�
鍦�3 Flash瀛樺劜鍣ㄦ帴鍙hō瑷堟鍦�
SDRDM瀛樺劜鍣ㄩ伕鐢ㄧ殑鏄疕ynix鐨凥Y57V281620ET锛屽畠鐨勫閲忎綅鏄�16MB(4Banks×2M×16bits)锛屽柈鐗囨暩(sh霉)鎿�(j霉)瀵害鏄�16浣�锛岀偤浜嗗澶ф暩(sh霉)鎿�(j霉)鍚炲悙鑳藉姏锛岄伕鍙栧叐鐗嘢DRAM妲�(g貌u)鎴�32浣嶅湴鍧€瀵害锛屽瓨鍎插閲忕偤32MB锛孒Y57V281620ET鐨勫伐浣滈浕澹撶偤3锛�3V锛屽父瑕嬪皝瑁濈偤54鑵砊SOP锛屽吋瀹筁VTTL鎺ュ彛銆傛敮鎸佽嚜鍕曞埛鏂�(Auto-Refresh)鍜岃嚜鍒锋柊(Self-Refresh)銆侶Y57V281620ET鑸嘓i3510鐨勬帴鍙i€f帴妗嗗湒濡傚湒4鎵€绀恒€�
鍦�4 SDRDM瀛樺劜鍣ㄦ帴鍙hō瑷堟鍦�
3銆佽闋婚噰闆嗘ā濉婅ō瑷�
瑕栭牷閲囬泦鑺墖閬哥敤Philips鍏徃鐢熺敘(ch菐n)鐨凷AA7113H锛屽畠鏄竴娆惧姛鑳藉挤澶т笖鎿嶄綔绨″柈鐨�9浣嶈闋昏几鍏ヨ檿鐞嗚姱鐗�锛岄噰鐢–MOS宸ヨ棟锛岄€氶亷I2C绺界窔鑸囪檿鐞嗗櫒鎴朌SP閫f帴鍙柟渚垮湴妲�(g貌u)鎴愭噳鐢ㄧ郴绲�(t菕ng)銆傚畠鍏�(n猫i)閮ㄥ寘鍚洓璺ā鎿檿鐞嗛€氶亾锛屽彲浠ラ伕鎿囪闋讳俊铏熸簮骞跺彲鎶楁贩鐤婃烤娉�锛屽悓鏅傞倓鍙互閫茶妯℃暩(sh霉)杞�(zhu菐n)鎻�銆佽嚜鍕曠疂浣�銆佽嚜鍕曞鐩婃帶鍒�(AGC)銆佹檪閻樼敘(ch菐n)鐢�(CGC)銆佸鍒跺紡瑙g⒓锛屽彟澶栭倓鍙互灏嶄寒搴�銆佸皪姣斿害鍜岄=鍜屽害閫茶鎺у埗銆傝ō缃甋AA7113H鑺墖鐨勫伐浣滄檪閻樼偤24锛�576MHz锛屾暩(sh霉)鎿�(j霉)杓稿嚭鏍煎紡鐐�4锛�2锛�2锛屽箑闋荤偤25fps銆傝闋婚噰闆嗚姱鐗嘢AA7113H鍦ㄤ笂闆诲悗锛屽苟涓嶆槸绔嬪嵆閲囬泦妯℃摤瑕栭牷淇¤櫉閫茶A锛廌杞�(zhu菐n)鎻涳紝瀹冨繀闋堢敱Hi3510閫氶亷I2C绺界窔灏嶅叾鍏�(n猫i)閮ㄥ瘎瀛樺櫒閫茶鍒濆鍖栬ō缃悗锛屾墠鑳芥甯稿伐浣�銆傝闋婚噰闆嗚姱鐗嘢AA7113H鑸嘓i3510鐨勬帴鍙i€f帴妗嗗湒濡傚湒5鎵€绀�銆�
鍦�5瑕栭牷閲囬泦闆昏矾鍘熺悊妗嗗湒
4銆佸鍦嶉浕璺ā濉�
鏈ō瑷堢敤鍒扮殑澶栬ō鏈塙SB鎺ュ彛锛岀恫(w菐ng)鍗℃帴鍙�锛屼覆琛屾帴鍙e拰JTAG鎺ュ彛銆傚悓鏅傜偤淇濊瓑绯荤当(t菕ng)灏囦締鐨勫彲鎿村睍鎬�锛岀郴绲�(t菕ng)閭勯爯鐣欎簡PC104鎺ュ彛鍜屽ぇ閲忕殑GPIO鎺ュ彛銆侫T91RM9200铏曠悊鍣ㄧ殑鐗囧収(n猫i)浠ュお缍�(w菐ng)鍗$鍙e拰缍�(w菐ng)绲$墿鐞嗗堡鑺墖DM9161E 鐨凪II 鎺ュ彛閫氫俊銆傝€屼笖鐗囧収(n猫i)浠ュお缍�(w菐ng)鍗″収(n猫i)缃簡鐛ㄧ珛鐨勯洐绶╂矕鐨勮畝瀵獶MA 閫氶亾锛岄€欐ǎ澶уぇ鎻愪緵浜嗘暩(sh霉)鎿�(j霉)鐨勭櫦(f膩)閫侀€熷害锛屽悓鏅備笉褰遍熆AT91RM9200 鐨勬甯搁亱琛屻€�
鐐轰繚璀夎闋婚噰闆嗚唱(zh矛)閲�锛岀洠(ji膩n)鎺х郴绲�(t菕ng)閬哥敤浜嗙緟鎶€绛夐珮绔搧鐗岀殑鐢�(ch菐n)鍝侊紝鐒跺悗鏀濆儚闋€氶亷灏堢敤鐨刄SB闆嗙窔鍣ㄨ垏铏曠悊鍣ㄥ柈鍏冪殑USB鎺ュ彛閫f帴銆傚湪瀵︽檪鐩�(ji膩n)鎺х媭鎱�(t脿i)涓嬶紝鍚勫€嬫敐鍍忛牠涓婃崟鐛茬殑鍦栧儚鏁�(sh霉)鎿�(j霉)閫氶亷USB闆嗙窔鍣ㄥ偝杓�?sh霉)鎻洦l鐩�(ji膩n)鎺х郴绲�(t菕ng)鐨刄SB涓绘帶鍒跺櫒妯″涓�锛岀劧鍚庡啀鐢盪SB涓绘帶鍒跺櫒妯″浜ょ敱AT91RM9200铏曠悊鍣ㄩ泦涓檿鐞嗐€侫T91RM9200灏嶉噰闆嗗埌鐨勫湒鍍忛€茶瀵︽檪绶ㄧ⒓澹撶府锛岀法纰间箣鍚庣殑纰兼祦鐩存帴鍌宠几?sh霉)妗╨(f膩)閫佺珐娌栧崁(q奴)涓紝绛夊€欑櫦(f膩)閫�銆傛渶鍚庣敱涓婂堡鎳夌敤绋嬪簭?q奴)鈶诲箽鐮楄煯鍥婃洦l鏁�(sh霉)鎿�(j霉)閫氶亷浠ュお缍�(w菐ng)鍙i€茶鐧�(f膩)閫�銆�
鍥�銆佽粺浠舵柟妗�
绲�(t菕ng)鐨勬噳鐢ㄨ粺浠跺缓绔嬪湪Linux鎿嶄綔绯荤当(t菕ng)涔嬩笂锛屽祵鍏ュ紡Linux鍏锋湁瑷卞鍎�(y艒u)榛�锛屽闁嬫斁婧愮⒓锛屽姛鑳藉挤澶х殑鍏�(n猫i)鏍�锛屾敮鎸佸鐢ㄦ埗銆佸绶氱▼銆佸閫茬▼銆佸鏅傛€уソ銆佸姛鑳藉挤澶х┅(w臎n)瀹�锛涘ぇ灏忓姛鑳藉彲瀹氬埗绛�銆傛湰绯荤当(t菕ng)閲囩敤鐨勫祵鍏ュ紡Linux绯荤当(t菕ng)鏄熀浜�2.6.21鐨勫収(n猫i)鏍革紝鏀寔浜嗗収(n猫i)鏍告惗鍗犲紡瑾�(di脿o)搴�锛屽悓鏅傝(di脿o)搴﹀懆鏈熺偤1ms锛屽洜姝ゅぇ澶т繚璀変簡绯荤当(t菕ng)鐨勫鏅傛€�銆傛澶�锛岀郴绲�(t菕ng)鍏�(n猫i)宓岀殑宓屽叆寮廘inux绯荤当(t菕ng)瀵︾従(xi脿n)浜嗗皪鎵€鏈夌‖浠惰ō鍌欑殑椹�(q奴)鍕曟敮鎸侊紝濡傚熀浜嶧lash鐨勬枃浠剁郴绲�(t菕ng)銆佺恫(w菐ng)鍗¢﹨(q奴)鍕曠▼搴忋€乁SB椹�(q奴)鍕曠▼搴忕瓑绛�锛屽畬鍏ㄤ繚璀変簡绯荤当(t菕ng)鐨勫彲鐢ㄦ€с€�
鍦ㄦ湰绯荤当(t菕ng)涓�锛岃粺浠惰ō瑷堝彲鍒嗙偤3閮ㄥ垎锛氳闋诲湒鍍忔暩(sh霉)鎿�(j霉)閲囬泦銆佸湒鍍忔暩(sh霉)鎿�(j霉)鐨凧PEG澹撶府浠ュ強绯荤当(t菕ng)骞宠嚭鐨勭恫(w菐ng)绲¢€氫俊銆�
1銆佽闋诲湒鍍忔暩(sh霉)鎿�(j霉)閲囬泦鐨勫鐝�(xi脿n)
鍏堝姞杓塙SB鏀濆儚闋﹨(q奴)鍕曠▼搴忥紝鎺ヨ憲灏辨槸绶ㄥ涓€鍊嬪皪瑕栭牷娴侀噰闆嗙殑鎳夌敤绋嬪簭銆傛敐鍍忛牠涓殑鍚勭óI锛廜鍙g殑鎺у埗涓昏渚濋潬Vide04Linux鎻愪緵鐨勬噳鐢ㄧ▼搴忔帴鍙e嚱鏁�(sh霉)瀵︾従(xi脿n)锛屼富瑕佹湁Open銆丷ead銆乄rite绛�銆俈4L涓嬬殑瑕栭牷閲囬泦1銆傚湪鏈郴绲�(t菕ng)涓�锛屽皣鏈夐棞鏀濆儚闋殑鍚勭ó鏁�(sh霉)鎿�(j霉)鍜岀祼(ji茅)妲�(g貌u)灏佽鎴愪簡涓€鍊嬮锛屼富瑕佺敤鍒扮殑涓€浜涚郴绲�(t菕ng)瑾�(di脿o)鐢ㄥ嚱鏁�(sh霉)瀹氱京濡備笅锛�
pen(“锛廳ev锛弙ide00”锛孫—RDWR)锛氳ō鍌欑殑鎵撻枊銆�
lose(fd)锛氳ō鍌欑殑闂滈枆銆�
map(void+addr锛宻ize—t len锛宨nt prot锛宨nt flags锛宨nt fd锛宱ff__t offset)锛�
瑷倷绶╂矕鍗€(q奴)鍒板収(n猫i)瀛樼┖闁撶殑鏄犲皠銆�
unmap(void*addr,size t len)锛氶噰闆嗗伐浣滅祼(ji茅)鏉熷悗鍙栨秷mmap鍜宮buf鐨勭秮瀹�銆�
octl(int Rl锛宩nt cmd锛庯紟锛�锛�)锛氭帶鍒禝/O鐨勯€氶亾銆�
2銆丩inux涓嬪湒璞℃暩(sh霉)鎿�(j霉)鐨凧PEG澹撶府
鐢变簬瑕栭牷淇℃伅鏁�(sh霉)鎿�(j霉)閲忛亷澶э紝鍥犳蹇呴爤鍦ㄨ闋诲偝杓稿墠灏嶅湒鍍忔暩(sh霉)鎿�(j霉)閫茶澹撶府铏曠悊銆傚湪鏈郴绲�(t菕ng)涓紝鏀濆儚闋噰闆嗛亷渚嗙殑鍦栧儚鏁�(sh霉)鎿�(j霉)鏍煎紡鐐篟GB24锛岄€氶亷瑾�(di脿o)鐢↙inux涓嬬殑Libjpeg搴締瀵︾従(xi脿n)瑕栭牷鏁�(sh霉)
鎿�(j霉)鐨勭法纰�锛屾妸RGB24鍦栧儚鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涚偤JPEG鏍煎紡銆備笅闈㈢啊杩颁笅鏁村€嬪绺檿鐞嗛亷绋嬶細棣栧厛鍒濆鍖朖PEG澹撶府鐨勫湒鐗囨牸寮�锛岃(di脿o)鐢╦peg_set—defauhs (&cmjpeg)锛屾帴钁楀垵濮嬪寲JPEG澹撶府鍦栫墖璩�(zh矛)閲�锛岄€氶亷jpeg_set—ratio (&cmjpeg锛宺atio锛�7rURE)瀵︾従(xi脿n)銆�
闁嬪澹撶府锛歫peg_start—compress(&cmjpeg锛孴URE)锛沠or(i--0,line--buf锛沬<_height锛沬++锛宭ine+=_width*3)jpeg_write—seanlines(&cmjpeg锛�&line锛�1)锛�
澹撶府瀹屾垚锛歫peg_finish—eompress(&cmjpeg)锛�
灏囧绺緱鍒扮殑鏁�(sh霉)鎿�(j霉)鎷疯矟鍒癹peg鏁�(sh霉)鎿�(j霉)璁婇噺涓細
memepy(new涓€>buf 0銆�((_dst_ptr)cmjpeg锛巇est)涓€>buffer,size)锛�
閲嬫斁鍏�(n猫i)瀛樺苟閵锋瘈cmjpeg璁婇噺锛歫peg_destory_compress(&cmjpeg)
jpeg_buff_free(&emjpeg)锛�
鏈€鍚庤繑鍥�return size锛涜繑鍥炲€約ize妯欒浜嗙珐娌栧崁(q奴)涓闋绘暩(sh霉)鎿�(j霉)鐨勫闅涢暦搴�銆�
3銆佺郴绲�(t菕ng)缍�(w菐ng)绲¢€氳▕鐨勫鐝�(xi脿n)
鏈郴绲�(t菕ng)閲囩敤B锛廠(鐎忚鍣�/鏈嶅嫏鍣�)妯″紡鐨勯€氫俊妲�(g貌u)鏋�銆傜敤鎴跺彧闇€鍦ㄩ仩绋嬪鎴舵瀹夎涓€鍊嬫櫘閫氱殑鐎忚鍣ㄨ粺浠�锛屽叾浠栧ぇ閮ㄥ垎宸ヤ綔鐢盬eb鏈嶅嫏鍣ㄥ畬鎴�銆侭锛廠妯″紡闁嬬櫦(f膩)鐨勭洠(ji膩n)鎺ц粺浠讹紝闄嶄綆浜嗗皪绯荤当(t菕ng)杌熶欢鐨勮姹�锛岄伩鍏嶄簡鐢ㄦ埗灏嶅鎴剁鐨勫畨瑁濆拰瑷疆锛屽鐝�(xi脿n)浜嗚粺浠跺畨瑁濈殑绨″柈鍖栥€佽嚜鐢卞寲銆�
瑕栭牷鐩�(ji膩n)鎺х郴绲�(t菕ng)瀵︾従(xi脿n)浜嗗皪USB鏀濆儚闋殑椹�(q奴)鍕曠▼搴�锛岄€欐ǎ涓婂堡瑕栭牷閲囬泦绋嬪簭鍙互鐩存帴閫氶亷妯欐簴鐨刅ideo4Linux鎺ュ彛鍑芥暩(sh霉)瑷晱USB鏀濆儚闋ō鍌�锛屾崟鐛插鏅傜殑瑕栭牷娴�锛屾斁鍏ヤ笂灞ょ珐娌栧崁(q奴)锛屽悓鏅傞€氱煡涓婂堡鏈嶅嫏鍣ㄨ粺浠惰檿鐞�銆�
绯荤当(t菕ng)涓収(n猫i)缃簡涓€鍊嬪畬鏁寸殑鍩轰簬缍�(w菐ng)绲$殑澶氱敤鎴惰闋绘湇鍕欏櫒杌熶欢锛岄€欐ǎ鐣舵湇鍕欏櫒杌熶欢鐩�(ji膩n)鑱藉埌鏈夌恫(w菐ng)绲″鎴堕€f帴鏅傦紝绔嬪嵆鍟熷嫊閲囬泦閫茬▼寰炵珐娌栧崁(q奴)涓妸铏曠悊鍚庣殑瑕栭牷娴佹暩(sh霉)鎿�(j霉)璁€鍑�锛岀劧鍚庣櫦(f膩)閫佺郸鐩告噳鐨勫鎴堕€f帴銆傚悓鏅傜偤浜嗕繚璀夌洠(ji膩n)鎺у鎴剁鐨勭啊鍠€ц垏绲�(t菕ng)涓€鎬�锛屾湰绯荤当(t菕ng)涓殑瀹㈡埗绔彲浠ョ洿鎺ヤ娇鐢↖E杌熶欢锛屽嵆鐢ㄦ埗鎵撻枊PC绔殑IE杌熶欢鍚�锛岀洿鎺ュ湪鍦板潃娆勫収(n猫i)杓稿叆闇€瑕佽í鍟忕殑瑷倷IP鍦板潃鎴栬€呭煙鍚�锛屽192.168.0.5锛屾鏅傚氨鍙互鍦↖E鐎忚鍣ㄤ腑椤ず鐣跺墠鐨勫鏅傞噰闆嗗湒鍍�銆�
浜�銆佺祼(ji茅)璜�
鏈郴绲�(t菕ng)閲囩敤宓屽叆寮廘inux锛屾搷浣滅郴绲�(t菕ng)鍜孉RM鏍歌檿鐞嗗櫒鐨勭‖浠跺钩鑷虹浉绲�(ji茅)鍚�锛岃闋讳俊铏熷緸鍓嶇鍦栧儚閲囬泦瑷倷杓稿嚭鏅傚嵆鐐烘暩(sh霉)瀛椾俊铏燂紝浠ョ恫(w菐ng)绲$偤鍌宠几濯掍粙锛屽苟鍩轰簬鍦嬮殯閫氱敤鐨凾CP锛廔P鍗�(xi茅)璀�锛屼娇鐢ㄦ祦濯掗珨鎶€琛撳鐝�(xi脿n)瑕栭牷淇¤櫉鍦ㄧ恫(w菐ng)绲′笂鐨勫偝杓�锛屾(g貌u)鎴愪簡涓€鍊嬮珮璩�(zh矛)閲�銆佺洠(ji膩n)鎺ф柟寮忛潏娲�銆佸彲闈犳€уソ鍜屽叿鏈夋槗浜庢摯灞曟灦妲�(g貌u)鐨勭恫(w菐ng)绲¤闋荤洠(ji膩n)鎺х郴绲�(t菕ng)銆侫RM铏曠悊鏍稿拰Linux銆傜浉绲�(ji茅)鍚�锛屽緢濂藉湴楂旂従(xi脿n)浜嗘暣鍊嬬洠(ji膩n)鎺у皬鍨嬪寲銆佹暩(sh霉)瀛楀寲銆佺恫(w菐ng)绲″寲銆佷綆鍔熻€楃殑鍎�(y艒u)榛炪€傜郴绲�(t菕ng)闆昏矾鏉跨従(xi脿n)宸叉垚鍔熼厤缃拰閬嬭锛岃(di脿o)瑭︾祼(ji茅)鏋滆〃鏄�锛屾暣鍊嬬郴绲�(t菕ng)鍏锋湁绌�(w臎n)瀹氬彲闈�銆佸畨瑁濈啊渚�銆佹垚鏈綆寤夌瓑鐗归粸锛屽彲寤f硾浣跨敤鍦ㄥ搴€侀妧琛�銆佽秴甯�銆佸叕鍏卞牬鎵€绛夈€�
鍙冭€冩枃鐛� (References)
[1] S H Yang, X Chen, J L Alty. Design issues and implementation of internet-based process control systems [J].Control Engineering Practice, 2001,11:709–720.
[2] Gregory C Walsh, Hong Ye. Scheduling of networked Control Systems [J]. IEEE Control Systems Magazine, 2003,21:57–65.
[3] Walsh G C, Ye H, Bushnell L. Stability analysis of networked control systems [C] // Proceedings of the American Control Conference, San Diego, 1999:2876-2880.
[4] G P Liu, D Rees, S C Chai, X Y Nie. Design Simulation and Implementation of Networked Predictive Control Systems [J]. Measurement & Control, 2005, 38(1): 17-31.
[5] G P Liu, S C Chai. Design and Practical Implementation of Networked Predictive Control Systems [C] // Networking, Sensing and Control, Proceedings, IEEE. 2005,3:336-341.
[6] Haibo Bian, G P Liu and Zhe Dong. Structure Design and Application of Embedded Ethernet Based Control Systems [C] // IEEE International Conference on Networking, Sensing and Control, April,2007: 47-51.
[7] Katsuhisa Furuta, Hiroyuki Kajiwara, Kazuhiro Kosuge. Digital control of a double inverted pendulum on an inclined rail [J]. International Journal of Control, 1980, 32 (5): 907-924.
[8] K Furuta, T Ochia, N Ono. Attitude control of a triple inverted pendulum [J]. International Journal of Control, 1984, 39 (6): 1351-1365.
[9] Mori, Shozo, Nishihara H, Furuta K. Control of unstable mechanical system: controlof pendulum [J]. International Journal of Control, 1976,23 (5): 673-692.
[10]妤婄锛庢暩(sh霉)瀛楀寲銆佺恫(w菐ng)绲″寲瑕栭牷鐩�(ji膩n)鎺х郴绲�(t菕ng)鐨勬妧琛撳劒(y艒u)鍕紟鏅鸿兘寤虹瓚鑸囧煄甯備俊鎭疘Jl锛�2006锛�(11)锛�22—24
[l1]鏉庡厓鑷o紝寮甸惮绁�?锛涱媱璐昐M缍�(w菐ng)绲$煭娑堟伅鐨勯仩绋嬬洠(ji膩n)鎺цō瑷圼J]寰▓绠楁淇℃伅锛�2008锛�1—3
[浣滆€呯啊浠媇
鏉庡€� (1982锛�)锛屽コ锛屾饥鏃�锛屽北鏉辨穭鍗氫汉锛岀爺绌剁敓锛屽北鏉卞伐妤�(y猫)鑱锋キ(y猫)瀛搁櫌闆绘埃宸ョ▼绯婚浕鍔涢浕瀛愭暀鐮斿鍔╂暀锛屼富瑕佸緸浜嬮浕瀛愶紝閫氫俊鐨勭爺绌跺拰鏁欏宸ヤ綔銆�
閫氫俊鍦板潃锛氬北鏉辩渷娣勫崥甯傞珮鏂伴枊鐧�(f膩)鍗€(q奴)寮靛寳璺�69铏熷北鏉卞伐妤�(y猫)鑱锋キ(y猫)瀛搁櫌闆绘埃宸ョ▼绯�锛岄兊绶�256414锛岄浕瑭憋細13589599646锛孍-mail锛�wuyulunbi_1982@126.com
妯欑敖锛�
涓湅鍌冲嫊缍�(w菐ng)鐗堟瑠鑸囧厤璨伈鏄庯細鍑℃湰缍�(w菐ng)娉ㄦ槑[渚嗘簮锛氫腑鍦嬪偝鍕曠恫(w菐ng)]鐨勬墍鏈夋枃瀛�銆佸湒鐗囥€侀煶瑕栧拰瑕栭牷鏂囦欢锛岀増娆婂潎鐐轰腑鍦嬪偝鍕曠恫(w菐ng)(www.wangxinlc.cn)鐛ㄥ鎵€鏈�銆傚闇€杞�(zhu菐n)杓夎珛鑸�0755-82949061鑱�(li谩n)绯汇€備换浣曞獟楂�銆佺恫(w菐ng)绔欐垨鍊嬩汉杞�(zhu菐n)杓変娇鐢ㄦ檪闋堟敞鏄庝締婧愨€滀腑鍦嬪偝鍕曠恫(w菐ng)鈥濓紝閬曞弽鑰呮湰缍�(w菐ng)灏囪拷绌跺叾娉曞緥璨换銆�
鏈恫(w菐ng)杞�(zhu菐n)杓夊苟娉ㄦ槑鍏朵粬渚嗘簮鐨勭ǹ浠�锛屽潎渚嗚嚜浜掕伅(li谩n)缍�(w菐ng)鎴栨キ(y猫)鍏�(n猫i)鎶曠ǹ浜哄+锛岀増娆婂爆浜庡師鐗堟瑠浜�銆傝綁(zhu菐n)杓夎珛淇濈暀绋夸欢渚嗘簮鍙婁綔鑰咃紝绂佹鎿呰嚜绡℃敼锛岄仌鑰呰嚜璨犵増娆婃硶寰嬭铂浠�銆�
鐢�(ch菐n)鍝佹柊鑱�
鏇村>鏉挎潗娴不鎴愭鍙�锛熺董瀹忔櫤鐩畵浣欐枡鈥滆畩寤�...
2025-06-09
寰炲瑙€鍒板収(n猫i)鏍哥殑銆岃秴閫插寲銆�锛丯K550M浜旇桓...
2025-06-06
绠″垏楂樻晥鍔犲伐绉樼睄锛氬皬绠″鏂�+Tekla鎻掍欢...
2025-05-19
B1绯诲垪鑴堟矕鍨嬩己鏈嶅伐钘濇鍔熻兘涓婄窔锛岃畵姗�...
2025-04-30