ࡱ> FHEKX[ RfbjbjxΐΐL#6 7 A MMM4hlU<>V!4UUU?D$=======$AC^=uM=MMUU4a>--- MUMU=-=--v//Ut)/=}><>/D],D/DM/-==,>D  : WNzf5uhv^L}lKmՋelvxvz _ W1 (UOkQ2 (1.VQ Nwm^5uRlQS5uRyf[xvzb Nwm 2004372.VQq\Nw5uRlQS5uRyf[xvzb q\NNmWS 250003) Xd,ge[vMRzf5uhhKmňn-N2NL}lOv N cQNNyv^L}lvel 勹el\zf5uhTbchV2NLޏc ~b2NTbh5u T*NhMOKNbh5u:NYv^L5u (W,ge-N_eQ$N~pQ5u OvQ~bYpQ5u-Nv}lOSvynlhV N gHe0WMQ}lOS[vQNhMOb_b2Npb0Ǐ[EvՋ ,gelSN Te[sY*N5uhv}lO N ~Nhe cؚNhHes0 sQ.͋}lzf5uhynlhVpQ2Npb -NVR{|STM933 e.shƋxB Research on Test Method of Parallel Carrier Communication Based on Smart Electricity Meter Zhang Yin1 He Yuhan2 1.Electric Power Research Institute, SMEPC, Shanghai, 200437, China;2.State Grid Shandong Electric Power Research Institute, Shandong Jinan, 250003, China AbstractAiming at the shortcomings of serial communication of smart electricity meters, this paper proposed a method of parallel carrier communication, The method connects the Smart Electricity Meter to the copy controller inseriesto form a series meter reading circuit, two level attenuating circuit is introduced in this paper so as to form an isolation filter capable of attenuating the carrier signal in the circuit, Thereby effectively avoiding the carrier signal signal to form crosstalk on the other epitopes, Through experiment and analysis, this method can realize the carrier communication of several energy meters at the same time, which saves the time of reading the meter and improves the efficiency of reading meter. 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LahPin,% % % TT  t@9v@ LahP % % % Tp _ t@9v@ LahXseries"''"% % % TT` u t@9v@` LahP % % % Tv  t@9v@v eLahto form a series meter reading circuit, two level attenuating circuit is introduced in this paper so ,,C'"''"C'''',,,'',?,'+''',,',,'',",,,,'',,,",','!+ % % % Tt.zt@9v@f1Lahas to form an isolation filter capable of attenua'",,C',",',,''',',','',,'% % % T.zt@9v@.fILahting the carrier signal in the circuit, Thereby effectively avoiding the ,,,''''",,'-,''',6-'',+'''+'+(+,,,,,& % % % Tt@9v@pLah,carrier signal signal to form crosstalk on the other epitopes, Through experiment and analysis, this method can '''%",,'%",,'%,%,C%',""',%,,%,'%,,'%',,,'"%6,,+,,%',+'C',%',,%','*""%,"&C',,,%''+ % % % T ~t@9v@jGLahrealize the carrier communication of several energy meters at the same '''' ,' ''' ',CC,,'',, , "'+'' ',',* C('" ' ,' "'C' % % % TH ~t@9v@ j*Lahtime, which saves the time of reading the C' ?,', "'+'" ,' C' , '',,,,' % % % Tt@9v@3Lahmeter and improves the efficiency of reading meter.C''',,C,,+'",''(','*,'',,,C('% % % TT t@9v@LahP K % % % T|$t@9v@oLah\KeywordsD'+A+'1"% % % TT%#|zt@9v@%oLahPX% % % Tx} _t@9v@}oLah\carrierC&''% % % TT` ut@9v@`oLahP % % % &WMFCq Tv t@9v@vo Lahhcommunicationo',DC,,'',,% % % TT t@9v@oLahP % % % T W t@9v@o5Lahcrosstalk; smart electricity meter; isolation filter;',""',"C'''''+C''",(,,'% % % TTX m t@9v@X oLahP % % % Tn t@9v@n o Lahdattenuation'',,',,Rp[SOjj0jjRQT0j(jjj$QT0j(j Ida(j0j *daX ;([SOSimunpT^}#dF\j8a#jjxa#j*dv% % %  Rp[SOj$jjjRQTjjjlj$QTjj Idajj |>daX ;([SOSimunpT}\>Ej8a#jjxa#j|>dv% % % % % % !ahT Xmt@9v@`L| 222222222222222222222222" '% LdGXKG!??% ( % % % TTY mt@9v@Y`LahP KRp@CambriajjjxjRQTjj`jj$QTjj Idajj \<dabX$7K@CambriHpT}<<H$j8a#`j`jxa#j\<dv% % %  % % % TTwt@9v@LahP K% % 6h6ah6a66g6`g6`66f6_f6_66e6^e6^66d6]d6]66c6\c6\66b6[b6[66a6Za6Z66`6Y`6Y6 6 _6X_6X 6  6 ^6W^6W 6  6 ]6V]6V 6  6 \6U\6U 6  6 [6T[6T 6 6Z6SZ6S66Y6RY6R66X6QX6Q66W6PW6P66V6OV6O6  JT."System??????-----  2 3TJ ,JT',5  2  5- 2 # 5 2 ( 51  2 1 5- 2 5 5 ,5 ''--- G2 ](TJܱܵزͨѶԷо 2 ]TJ ------------@Symbol---  @Symbol-----------2 sTJ 2 sTJ 2 s TJ ---2 mTJ1 ---2 sTJ r--- 2 s-TJ ---2 s4TJع --- 2 mVTJ2--- 2 sXTJ 2 5TJ(1.rG2 E(TJϺе˾ѧоԺϺ 2 TJ200r2 'TJ437r2 7TJ 2 ATJ2.D2 L&TJɽʡ˾ѧоԺɽ 2 TJ ------2 TJ 2 TJ 2 "TJ250003 2 ATJ)--- 2 GTJ ---2 3TJժҪ ---2 SXTJĿǰܱܵװдزͨŵIJ㣬һֲزͨѶķ÷ 2 3^TJܱܵͳӣɴ·λ֮䳭·Ϊ·е·ڱ 2 3^TJ˥·ʹܹ˥·еزźŵĸ˲ӶЧرزźŶλ A2 3$TJγɴšͨʵʵ飬 b2 :TJͬʱʵֶܱزͨţӶԼ˶ʱ䣬˶ 2 3TJЧʡ 2 ]TJ ---2 3TJؼʣ ---2 ]TJزͨѶ 2 TJ 2 TJܱܵ 2 TJ 2 TJ˲ 2 TJ 2 TJ˥ 2 %TJ 2 /TJ 2 DTJ ---2 3 TJͼţ ---&2 rTJTM933 ---2 TJױʶ룺 ---2  TJB  2 TTJ  2 3TJ ---@Times New Roman- - - - - - y2 (AITJResearch on Test Method of Parallel Carrier Communication Based on Smart          - - - %2 GTJElectricity Meter - - - 2 G]TJ @Times New Roman- - - - - - @Times New Roman- - - - - - - - - - - - 2 ]TJZhang - - - 2 ] TJYinn- - - 2 X TJ1 - - - 2 ]8TJHe Yuhan- - - 2 XcTJ2- - - 2 XgTJ ---2 l=TJ - - - 2 lHTJ1.- - - 52 lPTJElectric Power Research Inst- - - 2 lTJituteh- - - 2 lTJ, - - - 82 lTJSMEPC, Shanghai, 200437, China - - - 2 lsTJ;2.t- - - @2 l~#TJState Grid Shandong Electric Power @Times New Roman- - - - - - U2 |1TJResearch Institute, Shandong Jinan, 250003, China---2 |TJ - - - 2 |TJ - - - - - - 2 3TJAbstract---2 ZTJ - - - 2 efTJAiming at the shortcomings of serial communication of smart electricity meters, this paper proposed a - - - - - - (2 3TJmethod of parallel - - - ,2 TJcarrier communication,- - - 2 TJ - - - g2 =TJThe method connects the Smart Electricity Meter to the copy  - - - 2 3 TJcontroller - - - 2 aTJ - - - 2 dTJin- - - 2 lTJ - - - 2 oTJseries- - - 2 TJ - - - 2 eTJto form a series meter reading circuit, two level attenuating circuit is introduced in this paper so - - - U2 31TJas to form an isolation filter capable of attenua- - - y2 ITJting the carrier signal in the circuit, Thereby effectively avoiding the - - - 2 3pTJcarrier signal signal to form crosstalk on the other epitopes, Through experiment and analysis, this method can - - - v2 3GTJrealize the carrier communication of several energy meters at the same - - - J2 l*TJtime, which saves the time of reading the - - - X2 33TJmeter and improves the efficiency of reading meter.- - - 2  TJ - - - 2 3TJKeywords---2 aTJ - - - 2 kTJcarriers- - - 2 TJ - - - 2  TJcommunication- - - 2 TJ - - - [2 5TJcrosstalk; 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