DESCRIPTION Title of Envention: ELEVATOR SYSTEM Technical Field 5 [ O O O l ] equipped w i t l - i an uril.ntended ca:c inovenierlt: prol-ect:ion, and pa:ctj.cu:LarLy, i.s s u i t a b l e for a 11igh.-pe:c:formarice e1evatoc system equi.pped with a safei:]? cont:ro:l.:l.er b;lr;ed on a 3.0 microcomputer . Background Art ~:0002:l Jill cil.cvato:r sy:;tc?m :j.s :t:eql~i.i:e(:Jt, o be cqu:i.ppc?d wi.i-11 an. u1:ii.nl:ended car moveune~~ptr otect:i.on. (UCMP), wlii.c:l?. :i.s a 15 sa.:fety devi.ce t h a t a1it:ornati.ca:L:l.y stops a car when an. acti1at:oi:: or: a coi?t:r:ol.ler hiif; brolieai down aild a c a r move:; up and dowri be:fore dooi-s of al.:l. tzhc ::xi.ts of a car and s h o j ~ s t way a:rce closed, and the :l.:ilie. 10003:l 20 ,i ,l l(? un:i.rri.ended car. moverucl~t protecti.ori :i.:i coa~:~fi.ynr:ed t o :iin.c:l.i~dea doo:r zoi~ed et:ect:i.on sensor, a car door sw:i.tch, a landing door swi.tch, arid the :Li.l;e, and actuates a bralce a t the point of time wheri. doors of a car and a :l.aild:i.rlg are (:)perled arid a car deviates :from a :Landing by bei.ng brought 25 up and down by a p~retlei.e.rm:iil:ied distance ilroin a door zone?. [ 0 0 0 4 ] For example, I?ateilt. i:,:i.t:erature I. di.scl.oses i:hat: :i.n order to lnalce a movement cii.sl;aiice up t o bcaki.ng and sl:opp:i.ilg short by det:eci:ing an opei-].--door starl::i.rrg car 5 pri.or to deviating from the door zone, a car re-:l.evel~ opei:ati.on i s perfor:med wllerr a car pc>si~t:ion deviates :F:rorn a landing zone in an open-door s t a t e and a brake is actuated when a d i f f e r e n c e between a car position when a door of a car i s opened and a car po:;:i.t::j.on a:fte:c a correction :l.O operati.on of a car posi.ti.on is pc?rformed exceeds a predeterm:i.i?ed vaiue and t h a t a. r e - l e v e l operat:i.on :i.s perforined when a car pos:i.ti.oin deviai:es froin a bott:om i.cive;L and a bralie i.s ncl;i~at:cd by dol-:i'l:~nini~ng tl?at a cni- l;)o:;:i.ti.on :i.s suddenly cl?anyed when a car vel..oci.ty V2 a:f:tci:r t:Jie re- 1.5 1.evel. operatioil is :]larger than a car vel.oci.ir.y V l . a t the time (1: 1:iie r e - l e v e l opel-at::i.on ailti :i.s sustaiined i-or a pi.edei:ermined ti.mc . Citation L i s t Patent Literatures 20 /:0005:1 l?at:.ent :Literature 1 : Japane:jc Patorri. Appi.:icati.oil Lai.d--Ope17 No. 2007--55693. Smary of Invention Technical Problem 25 [0006:1 In i:hc? re:l..ai:ed a r t , when a predetermined di.stailce t h a t is a r(::?fere12.ce of a.bi?.orma:l.it:y determi..i:ial-i.on js s e t to be shorl:er wi.t:ilil? t:he dooi: zone, a possibil.ity of erroneous detect-ion increases, and part:icularl~y, a car 5 movemcilt is erroneously detected due to a :cope expansion. accord:i.~?g 1-0 paiisengc?:cii getl:.i.rig on or off a c a r . Further', in case o:i: the erroneous detecti.oin, a car i.s eme:rgeiicy- :;t-.opped by a brake, such t h a t a t r a v e l service of an elevator :;t:ops and t r a v e l eff::i.c:i.cncy i.s degratled. :In 3.0 p : c u a r , i.n an el.evaLor having a long rope 1.ilce an eleval:or of a :l.ong strolte, the rope i.s i.ur a s t a t e :l.:ike a spi:.irig, and t:tic?:reforc-1 i:ii.e rope can be easi.:Ly expanded duc? t:o passcingcrr; gct:t.i.ng oin/ofl? n trai:, r,l.lcI? t h a t trhe tiravel eff:i.c:i.enr:y :i.s remarltably degraded arid :iis di f fcrent: ifor 15 each fl.oor. [000'7] P'urtiie:~:, the coi?fi~y~.irationdse scr:i.bcd :i.r Paircrit: Lit:eratur::e 1 may need to perforin tlse re-leve:l operat:l.o~? o:!: a car, : i t : : ? r it i , a nd i.nci-ear;(? a c;~r- 20 movement. d:i.stance i.ri Liie opciri-door s t a t e for: the dc:tc?cti.nq t:.i.me. F'urtl-ier, wlieri tile car ve:l.ocity V:l i s reduced, i t : :i.,s easy to crroi~(::?ou:;l.yd et:.ect the V2 as abnormali.t:y, whj.:Le when the car v e l o c i t y ' V I is large, fit is tlii:ficult: t o d e t e c t t h e V2. In addi-tion, .in rrri abi1orrna.L ]node (mode :La1 2S wl-i:i.cl-1. acceleral::i.orr i.!; not made) i r i whici~ a car tiravels a t V% .: V1, i:l-ie tiei:eci.i.on ca~.iri.ot he inade or the detectioi? i.s del-ayed. 1: 0 0 0 ti :I A17 object of the pr:eseni-: :i.n.vent:ion i.:; to solve the 5 problem of the r e l a t e d a r t and c e r t a i n l y d e t e c t open-door movennc?~?.at t: a s11orl::er roovement d:i.si:ance ( e a r l i e r po.i.nt :in m and p~reveiit trave:l. eff:ici.eilcy froin being degraded wh:i:l.e i.ncreasirig higher stabj.li.i:y. ~:0009] 10 Further, another object of the prcsc?nt j.nvci~t:ioi? is to remove erroneous detecti.011 and i.ncrease ~::el.j..abi.:Li.ty, r e g a r d 1 . e ~o~f: a :l.ol?g ni?d s11oi:t stocke of a11 e?.evatoi: and a d:iLf :Ec-rc;~:~cbee tween. :floor:; . 1: o0:i 0 ] :I. 5 In. a.dd:i.tj.on, anotl?.er ob:ject of the present inventj-on is to cei:t:a:i.ii:I.y iit:op ri car w:i.thj~i a predetermj.~?ed d:irita~?ce f!rc?rn a :l.and:i.nq reference posi. i;i on of a i.and:i.nq, i::ega~:d:l..eri:~ of speed pati:.erals suczl-I as a s i z e of a car speed, iic:cc?l.(?ra i.i.oi-I, dc?c-:e1 e r a t i o n , and izlic l.i kc. 20 [003.:LJ Furl:l?ermorc, the preseini: :i.nvei?.t:ion i s t o achieve at: ].cast any one of the above o b j e c t s . Solution to Problem 100:12j J : ~ I order i.o ach:i.eve i:l.xc? object:, the present i~~.ven.t:.i.opnr ovides arl. el.evat:or system equi.pped with an ~ i ~ l i ~ l t e i i dceadr movement p:roI:ect:i.on t l ~ a ts i:ops a czar by deterrn.:ining tlhe case, i n wl?i.ch a car door and a landj~rrg door are in an open s t a t e and a car is elevated from a 5 laildi.ny, ?is open-door movement abnormal-ity, the system i.n.cl.ud:i..ng: n car door swi.i:ch t h a t d e t e c t s an open s t a t e o:F the car door; a landing door switch t h a t d e t e c t s the open s t a t e of the landing door; a detecti.on devi.ce t h a t d e t e c t s a speed and a movemer~t amount o:f a car and. a f l o o r 3.0 reference p o s i t i o ~ ~a;n d a s a f e t y cont:roll.er that: determi.ne:s arr open-door inovernent abnormality by as1 ab11orma:l.i.ty determinat.ion. t:hreshol.d value of a s e t car speed w:i.t:l-1 i:e:;pecl: to a cai: posi t:i.orr based oil i:e::;i~l.ts detected by the detect:jon device. 1s Advantageous Effects of Invention i001.31 1iccordi.ng to the pr:csent :invcl;?t:.ion, i.t i.r, possi.b:l.c tzo det.c?ct tile ope]?-door movement a t an ear:l.:i.ci: po:i.s?t :i.n t-.i.me fo:~-d ctermininq t-.lir? open--dooi- rnovc~ncnt abnol-ma1.i ty 20 kxjsecl 011 only the car pos:it:i.o~?, i.mp:rove the sii:i:eLy, ailti remove the erroneous detect:ion t:::o prevent the degradation i n . travel. effi.ciency, by detectyiny the f l o o r reference position. and tile speed and move~nent amourit: of the car and setti-ng the abnormali-ty determination i:::h.retjho:Ld val.ue of 2ii tile car speiici w i t h respect to the car positi.oil. B r i e f Description of D r a w i n g s [0014] [ F ' I G . L 1 An overall. conf igurat:i.o]:r d:i.ilgram . . :il.lusi:rating an ernbodi-ment o:f the present i.l~venL:ion. '5 [:I?:[(;. %] A bl.ock d:iiigrain il.l..ust:ratj~ng a. s a f e t y cont::r:ol.l.er according t:o an eml-)odi.ment, [FIG;. 31 A a side view i.1.lustratin.g ii determi.uati.on distarrce according to an el~hodimen.t [l?TC. 41 An operation flow cllart o:f ilvr unintended :lo car rnoveinerlt p:rotecl;i.on according t o an cmbodi.mcnt. [ F ' I G . 51 A graph :i:l.l.ustrati.ng c i ? . a r a c t e r i s t i c s of an abaiol:mai.i.ty dehoi:~n:i.i~atioI?.iti:ih reslio:l.d value of :i s e t car speed wi.th respect t o a ca:r positi-on ac:cordi.r~g t o an c-:l~lk>od:i.~sier.i i:. 1.5 [FIG. 61 A graph i.l.l.ustrating a car operai:i.on cJue to a rope expansion accordi.a~g to ail einhod:i.ment,. [I.'l:G. ''71 7-1 graph :i.l..l.ii:itratj.nq an operrlti.on (,5t:o&) ;? 0 1. e'1.C;. 8 A yrapl:~ :i.l.%ilstratj.ng an opciri~i.:i.on (c:r:roi?eous dei:ecti.on) upori tbe occurrence of abno:rnia:l.i.t:y i n the embodj.ment and the r e l a t e d a r t . 1 E'I:C. 9 ] A grapl?. j.llustrat:ilig c l i a r a c t e r i s t j - c s of: an abnormal.ity deter:mi.riatj.on threshold value of a s e t car 25 :speed wfitli respect: to a ca:r posfi.i.i.or~ accordiing t o another eiitbodi.ruenl_ . 1:li':i:G. 101 A. graph il.l.u!ii:iati.~lg characteri.sti.cs of an abnormal.ity determinati.on threshold value of a :;el: car speed wjth respect to a car position accordj.11.g t:o yet 5 another embodiment.. [FIG. :Ill] A. b:l.oclc diirryram i.l.i.ust:rati.n(a~ sa:f:ety conirol1.er according to another embodiment. [FIG. 121 A. graph i . l l u s t r a t i ~ : i gc hariict:eri.slics of an abnorrnaiiity deteruni.nati~os7 tbresho:l.d value o:f a set: car 10 speed w:i.th respect to a car position according to yet another embodiment. [FIG. 1.31 R k~l.oclc diagram j.l.l.ust~:atirlg a s a f e t y contro:lLl.c?r ,zccor:d:i.ng to yet: another embodiment. I ? 14 j A graph. i.l.l.ustrilt:iny cl~a:~:~acte~:i.sticro,f.c sa n 1.5 abl?orrnal..:~tyd etermi.ra:.:io t1ireshol.d val.ue of a s e t car speed w j t h respeci: t:o a car: pos.ti.oti accord:iaicj to yet a11otlicr embod:i.rrieilt . Description of Embodiments 1: 0 0 l !5 1 2 0 FIerc:i.ui.a:l:i:er:., c?ml-~odimentsw :i.:Li be described i.11 dc?ta:i.l. wi.th reference t o t:he accoinpanyinq drawiings. In tlic rc?l.ai_c:d a r t , a s a f e t y styem usi.ng mechan.j.ca:l. devices such. as a contact switch or a relay c i r c u i t is configured of e:l.ectroni.c devices usi.ng a s a f e t y contro:i.l.er 25 based on, for example, a mi.crocorn]-.)uter. 1: 0 0 :I. 6 1 The s a f e t y control.l.etr i.s a hi~gbc?r-pe~:formar~ce el.ect:roni.c s a f e t y system i:liat performs high degree processing by sof:twa~re t h a t is a combj..nati.on of j.nput 5 illformation of a plural.it:y of sensors or a sa:fei:y ~jwitch and i.s a coinb.inat:ion of a plural.i.ty of stal.~?r ;i.qiial..rj. 1: 0 0 1. '7 ] FIG. :I is an overall. con:[li.yurat;:i.on d.i.agrarn :i.l.:l.ur;trai:i.l~ga n. e:l.evai.or :;ystem, i.n wi?i.ch an e:i.c~vat:or car 1.0 2 and a balance weiglit 3 of an elevator are connected with each other by a mai~ri rope and the car 2 is ve:rt::ical.l.y brought up and down by a sbic:vc? !i t h a t i.s rotal:ab:Ly dci.vei1 by a motor 4 . When a car :;t:oy?:;, the sli:ic?vc I, :is :l::i.xrtJ. by a braise (doilh:ied cor1:l2i.gurat::i.on) 6 . ':['he hralie 6 i.s also 1.5 used even when a car i s emergency-stopped a t the tj.~ne of t-tie el.eva t o r abl?.or~na:iiL.t y . 1: 0 0 1. 8 ] 51 1 .i-ie el.evai-01: o:l? the olectroi-1i.c sa:fet:y system i s :i.I.Lustrat:ed and (:he nor~ual./al-~no:t:rnn:l. :;i:ai:c. olf ti-ic e:i evaj:o~- 20 i.:;tl ete.t:.m:i.ned by t l i c ? mou1.1t:et'l :iaif(?l:y coiii.rol.:l.e:r :I. :i.n tlie hi~gil-.rc!?.i.ahle rn:iLcroco~nputer and the i.:i.l!:e, aiid j.:l: j~t: i s determined t h a t thc cl.cvat:or is abnormal., a 1nai.n power supply t h a t supplies power to the motor is c:ut off and the brake 6 is aci:i:~ated, such t h a t the car 2 i.s emergency- 25 st:opped. ~ 0 0 1 . ~ 1 'i'he safety coi?tro:l.:l.er 1 :iis confi~gured o f , for example, a dual. system of a microcompute:r arid two 1~1i..crocoinputersm utu.d:L:Ly checlc a statye of the other party s and an operation output, thereby impl~ernent:j.ng high rel.i.abi.1i.t:y. '1lki.e :;afety c o n t r o l l e r :I is coi~fjgiircid ty.0 i.nc1.ud.e an operai:i.on processi.n.y dc?vi.ce i.i?.c::Ludirig a mi.crocompu.ter, a CI?U, or a IISP arid an el.ectronic processi.n.g devj~ce i n whi.ch process:i.ng 1.og:i.c car] be rno1iilt:ed 3.0 by progranuninq of an FPGA (1.ogi.c ci.rcui..l), and t:he l.:i.ke. [0020] lis one sensol: tilair detect::; the abnormal. s a t e of tzlle e:lLcvat:or, a govc!riior devjce and an ci:icoder: 21. arc? provi.ded to (let-;ec:il a :;peed and. a movement arnount (movement: 1.5 di.stal?.ce) of a car. The governor device :i.s configured o f a governor :rope 2% t h a t i.s su.ppo:t:.ted by ii rotatab1.e govi?rrro:r pnl..Ley 20, f:i.xed to a car 2, and moves i.ogoLh.er wi.t:.h the c a r . 'I'he encoder %:I. (1:oi:oary ei~codei:) i s ai:iiicl.ietl 1.o i:lii! c-jovernol: pu:IL:l.ey 20 and roi.ai:c.s i.ogcil:hc?r 20 w:i..tli t:,lie c:.ar: iind tile speed arid movemc?rrt amoulit o:i t:iic? car:. are obtairred by courlting a pl.~lse generated by .th(e ~:ot:at:i..on of the encoder 2 1 . 1: 0 0 2 1 :I 'The signal. of the encoder 21. is input t o the s a f e t y 25 c o r i i r o i l e r :I. and Liie speed or moveinent amount of t:he car: i:i cal.cul.ated by coiliiti.ng i:1.1.e pulse. The speed arid movement amount of the car are detected by a detectior~. device i:hat: reads maynet.ical1.y recorded code :information by at:tachi.ng a magnet:i.c tape t o an 1-io:i.si: way ( f o r exaunpl.c?, 5 rail.) j.n a vertical. directi-on (ascendi.11g/d(?scendii1g direct:i.on) or performs o p t j c a i (:for examp:Le, bar code) detect:i.on. [OO%%:/ 'The t:.lie :f'l.oor reference posi ti.on of each f l o o r and 10 the f:l.oor po:i:i.t:i.on. :information ( f o r example, f i r s t floo:r, second f l o o r ) of each f l o o r are detectzed by a c a r p o s i t i o n sensor 30 ( r e f l e c t i v e phot:oel.ectri.c sensor) equiipped i.11 the car 2 and dct:cc:t:i.on pl.ates 31.21, ?In, ni?.cl :il.C: ;itt:aclled t o t:lircssh.o:l..ds o:f :iil~:id:iLngs of: each f?.oor and whiex~ the car 7.5 posi.ti.on sensor 30 i s present a t a posj.t:i.on opposi.t:e t o the detectioi?. p:l.ati!, refl.ecLred li.(jl?tz of the sen:;or i ~ s detected :from each cietrecl:i.on. pl.ate. 'C1:ie I.engt:).l and shapc of! each dr?t:eci-:i.on pl.at:e are cl-ianged f o r cinch :f:iLoor, such t h a t i.k i.s detc?ct:ed whether the car 2 i.:: p:reseait ;it: a 20 ~~i:.edeterm:i.11~i:c??~J1:e :rence po:i:i.i::i.on (:):I: t:he fl.oo:r-. :l:n order: t o detect: the rei?erc?~-iccp?o s:i:ti.on wi.t:l-i h:i.gl? p:reci.si.oll, an. edge of tho d e t e c t i o n p l a t e may be de%ected based on a change i n a s t e p shape of the s e r ~ s o r sigi-ial. [00%3:1 A l.and:iiilg reference posi.t:i.ori (l.ai~.d:i.~:i.gi. evei.) a t which i:he car 2 i s l.aiidi?ti is ciil..culai:ed froin the detected reference p>oriiti.on of the f:Loor ai?d the calcu:l.ai'ed lnovelnelit amount. Wt- en t:he edge p o s i t j~ol?. of t h e d e t e c t i o n p)l.ate i.s s e t to the reference posi.t.i.on o:f fl~ooc, the 5 detection p l a t e s 31A, 3113, aiid 3iC are attached s o that: the edge pos:i.ti.on and t h e landing re:ference pos:i.t:i.on are a t a predeteremj.iied distance. Therefore, aftcir the edge posi-tion o:l: -the detecti.on pilaire is detected by the car posit;i.on sensor 30, the car (accurately, car bottom) i ~ sa t 1.0 the landing refererice position of the f l o o r when t:lie movement amount of the car based on. the encoder 21 reaci-ie:i a predei:er~ni.ned value. I:0024:l ll'urther, a car door: :;wj.t:ch 4:i t h a t d e t e c t s the orzeri 15 s t a t e of t:he car door 42 and :l.andi.ng door switches 4l.A., 41B, and 4l.C t h a t detect irl~e open statc?s of the l.ai?di.~?.g clooi::: 4OA, 4013, arid 40C of each f:lLoor are proviidcd. :In add:i.ki.on, as i:lie sen:jo:t: t:I-iilt det:.c:c:ts a :load of passenger:; wi.i:l?:i.i? a car, ;i :jprj.ng i:ypc+ :Inad :;el?i;or 3% a~?dn bi?arn 20 seri:ioi or a p1:iotoc:l.ecl:ri.c :jen:joi:- (not i.1 .:l.ust~:at:cd) l:hat: i.s eyii:i..ppcd a t t h e c a r tioor to d e t e c t passengers sandwicI:ic?d in the car door arc provided. [0025] 'The i.nformation on the sensor ( t h e encoder 21 of the 25 govc?ruior, t:he i:ar pos:il::iLon sexiso:c 30, 1:)1(+ spr:i.rig type 1.oa.d sc?n:;or 32, and the beam sensor of Llle car dooir) and. t l l c ? swi.i:.th (ti-ie car door swi.t:ch 43 and t:lie i.andii-iy door switches 4lA, 4iB, and 4:LC of each fl.oor) i.s converted :i.nto an el.ectri.ca1. si.gna.1. and a seri.a:l. com~nun.ication s si.yiial and. i.ny:)ut to the safety contro:l.:l.er 1. vj.a a sj-gnal. l j . 1 1 ~ . l:0026] The s a f e t y control.l.er 1. determiries the s a f e t y s t a t e of tile el.c:vat:or based on tlie sensor i~n:formatioi?a. nd Ithe 10 switcli in.foriuati.oi-1, and i.f it is determined t h a t thc s a f e t y s t a t e i.s abnormal, cuts off the main power supp1.y and oporat;es tl-ie brake 6, thereby eineryeny stoppi.iig tlie el.evat:.or: c a r . 10027:l 15 1Tl:G. 2 i.l.l.ustrates a. bl.ocli diag:cam of an UCMMP t h a t i.s the s a f e t y control.l.c?r I., i l i wl:i:i.c:17 tlie UCM:IP dei:ects the open-door lnoven~erlt abnormal.i.t:y based on thc posi.t:i.on (tllc rr~ovi.rlq di.stza~?.ceo f the car from Ll-le landinq reference posiLion) and speed of the c a r . 20 j.00213/ ,I,:h e car .speed i.:; ca:l.cul.ated by counting the pulse o:l: the encoder 21. as t:h.c number of puises (cori:espondi.ilg to the car rnovj.ng di.stance) pel: a predetermi.n.ed t i m e ? by a car speed cal..culation ui1i.t :10:l. . ']:he movement di.rect:j.on 25 (ascel~icl:i..~rdlgi recti.on or desce~idingd :i.:reci:j.on) of the car i.:; obtained by d?.fferent:iai-:iriy Lhe rot:at:i.oil di.rec?i::i.oin :from the :;i.gi?al of the encoder ;?I by a car movement: dj.recti.on determi.nai.i.011 ur1i.t 1.0%. 1:00%91 5 A dj-stance calcul..at:i.on. un:i.t 1.04 bet:weeli the i.and.ing reference position and the car position c a l c u l a t e s a detecmi.iial:ion distance X between the i.arid:i.r~.g refererlce position. of the laridi.?:::g and t:he car posiki.on (car bottom posi.t:i.on), and I?TG. :3 i s the expi.aiiati.on di-aqram l:.iiereof. 1.0 The landing re:i'ererice pos:i.tion is a positi.0~1t h a t is spaced apart from the fl.oor re:fe:t::eince posi.tion by the car posi.tj.011 sei?sor 30 by a predetermined dfistaaice. 'The car position i s ohtai.~ied ba:;ocJ. on i:hc car movc:merrl:. amount il!:o!n the poj.nt :i.n t::i.ine pa:isj.i~g t:l:~rc)ugh the fl.oor 1:-e:i:erel-ice 15 posi-tion. X - /cai: posj.t:i.or~ - la~?di.n(jr :el:e:reni:e posi.l::i.on/ = I ( c a r , I . . . ( X I 3 I xn) l (1.) AX i.epv:c?:jei?t.s the car moverneili: amount p)e:t: pulse o:f the qovernor c?ricodcr, XR. :l::e~~r.c?r;cti-tihi:e:?; :fl.oou: rc?fc?rc?ncc 20 pos:it::i.oi-I, XI3 ~::c?~:)i:::esenttlsi e distance (pr::edeLes:m.i.ned val.ue) between the :floor refere13.ce posi.t;:i.on avid the :l.aiid:i.ng reference posj.tion, and CAX represents the cai: ~~novernent amounl: (addition by defining sign 1 - / - from the car movement d i r e c t i o n determined by the car movement 25 d:i..r:ecti.oi~ d.eterm:i.niat:i.or::: ur1i.t 1.02) from. t:kic? p)o:i..nt i.n i:.iaie when the? car passes through the fl.ooe reference posi.L:i.on. 10030:l The open-door determinati.on uniit 1.05 d e t ~ e c l s wtlether any orie of the car door switch 113, the car door from i:he 5 output si.gnal.:i from the 1aild:iilg door swi.tches 412-1, 111.B, and 4 i C of each f::l.oor, or the i.aiidi.ng door of each :floor is opened ( i ~]tn ay be determined that: oi1l.y tiic? car door :is opened) . 1: 0 0 3 3. :I 1.0 When i.t i.s detected t h a t (:he car door or tile :Landing door is in an open-door s t a t e , a car positi-on and car speed abnor~.nill.i:t:y determi.11a tioil un:i t 0. 0 6 determi.ries L:lie ouccrrcrlce of: tile open-doo:c movemerit abnorma:l.i.t'y :Firorn the car. :ipc?cid, the determi.nat::i.on di.stance X hr?tween t:lie I.!i 1.andi.ng reference position and the car posi.ti.on, and an overspeed t:hiiresh.oi.tJ. val.iie (abnormal.:.i.ty dei:erm:iiriat:i.on t1ireshol.d val.ue) o:l the car speed set. wi~tti respect to the dotermi.naL:i.oii dj~st:ai?ce X . 10032'1 6 8 20 1.l.ie ovi?rspeetl Ll-1i:esliol.d va:l.ue i.:j stored :i.r a Ihre:sh.oid v a l i ~ e database 10'7 as a database, cor~respo~~.dil?g t o the landing reference p o s i t i o n s for each f l o o r and tbe determinat:io~l. distance X . When i.l: i.s determined t o be the open-tloor movement abrlormality by r e f e r r i n g to the 25 ti.i:resi~.o:l.dv aliie dalak~ase: l.O'l, thc? s a f e t y cor~tro:i.:l..e:rl~ outputs a sj.gna1 t h a t cuts off the ma:i.t? power supp1.y of the eI.evator and a si.gna:i. (gel>.e:ral.:l.y, a signal that. int:er:rupts the supp1.y power o:f a wi.'~ch bralte) thiil:. actuates tile wi.~?chb rake. 5 j00331 FIG. 4 i.l:l.iist:rat:e:i arl opc?rati.ol? fl.ow c:ha:rt of the e:i.c?ctroni.c UCMI?. 100341 It: :iis determi-ned whether the car. door and the 10 i.anding doors of each floor are i n an opexi s t a t e (1?03) . I f i.1: j.s determfined t h a t the door i.s not i n ai? open stzale, :i.l: is dcl.e~:mined t:hai: no open-door ~nove~nenatb n.ormill.it:y is present:., and th11.o the process:in.g i.s orn:i.t:t:ed. 10035:l :I. !j Whe1-1 the doo:r i.ri i r i the open s t a t e , t:he car speed is detected (F02) to ca:Lcul.ate the det;errini.nati.on di.stance X (tile movi.ng di.:itai~ce of Lire car :from the referericc? posi.tj..on) belrweeii the current c a r pos:i.t:i.on and t ) . ~ c ? :I.iin.d:iL~icj re:ferenc.e posj.tj.oil of the car stop f!:i.oor (or nearcsir :? 0 f : 1 1 : : 1 ) ( I? 0 3 ) . [ 0 0 3 6 ] The comparison i s performed (F05) by r e f e r r i n g to the abnorma:i.ity deterrninati.~~t?h.r eshold value stored in the tilresho3.d. val.ue database 1071 (F04) . 25 l:003'7:l Wlien the car speed :i.s iiiyl~er thaii tile abi?ormal.i.ty dete:rm:i.n;$ti.on thresho3.d value, a i s , exceeds a speed, i t j.s deter.m:i.ned t h a t the car ?.s in the open-doo:r movement abnorrna:l.i.t:y s t a t e (1?06), .such t h a t the car ?.s emergency- 5 stopped (F0'7) . [:003s:I FIG. 5 i l l u s t r a t e s the abnormali-ty deterrnirlatiorl threshold value (determi.s?.ation c r i t e r j - a ) , i.n wiiicil. a horizont:a:i. axis (AOI.) a t any N"' :l:l.oor represent:^ t:he car 3.0 speed, a ve:r:t:i.cal. ax-is (A.02) r e p r e s e i ~ t s the car posi.t::i.on i n the ascending/descei?d:i.ng directi.011, a dotted :Li.no A05 represent:^ a laildjrlg r:efer-ence pos:it:i.on, arid a curve ,1103 represent:^ an abnorma..:l.:i.iy dei_c?r1ni~11;~11:::1h ireshol.d value.. 1:t i s detc?~:~n:i.nedt h a t an :.i.i~ne~,sr:i ,.de (landi.ng reference 15 posit;j.on s i d e ) than the curve A03 is rlormal and a]?. outer side beyond tlle curved i.i.rle i.s ahi~ormai.. 10039j 'I:'l?e ab~io:i:rna:l.:i.t:y determirlation thres11ol.d va:Lue is set: to i.~ecomes ina:Ller a:; !:he d (margiin of t:he speed detecti.on) by delin:irlg [:he rope expan:ii.on amoi~ni: arid an op>e:r.i:~t:i.oan rea curve .A06 of the open-door m.ove~.neintt h a t may also be i n a normal s t a t e so as not t o erroneously deterininc? the car speed a t t h a t t h e based oil tlne 5 expansion due t o passengers g e t t i n g on and off a car. [:0041.] The operakion area (curve A06) of the inormal.. opendoor movernerit due to the rope expansion, and the 1.i.lce wil.1 he described. 10 FIG. 6 (A) i . l l u s t r a t e s the car operation (the operatj.011 of the posi.t:i.on arid speed) due t o the expansion of tlne urtain rope wl~en inany pe0p:l.e get :in a car. Ail opiirat:i.oa~ t r a c e C03. ~:eproscnl:.s 11 triice o:f: an opeirntion p)o:iLr~ta nd ail arrow d:i.:recti~onr epresents a tempo:ral 15 progress. I:n the s t a r t poi.n.t:, the car stops at the 1.andi.ng i:efe~:ence pos:i.ti.oin (:speed is zero) . W1:ieri many peop1.e get: on the car, the rope :iis expanded such that: thr? car descends w:i.lri-i t l ~ e iincreased speed and stops a t any positioin and then, stops at: a p)osi.hi.on oil a11 cnd poi11t loy 20 i-epeat:.i.ng vj.brat.ons of a:;ceild:i.n(j arid desc:endi.ny :I.i.lt.e I . 6 (B) j.?l.usrates the case i n wt>.i.ch many people ge% off a car and then, get on a c a r , i n which C02 25 represerits tl?e operatj.ol1 t:race. Many people gc?t off a car a t tihe sta:ci: point and the rope i.s couli:racled siicii i.l:iat a car ascends once alici i.s vi.b::a!:ed. The car is st;ron.g:ly vibrated i n ii descending d:i.rcict:i~on because more peop2.e get on the car i.11 the moantime. 5 jO0431 As described above, i n order to erroneous:I.y det:ect i.he movemeiht of tlxe car due t:o the rope expansj~on., the curve A06 in the normal area may be a rad%al curve based on the :I.andj~ng reference po:;it:i.ori. 10 LO0441 FIG. 7 i ~ l l u s t r a t e s the operation upon the occurrence of ahuiorun.a:l.:i.ty, i.11 which a dotted i.ine I301. r e p r e s e n l : ~ tile determ:i..~xal:i..or!l: hrc:sl~oi.d vai.\ic nccorci:i.ng t o tl:lr re:l.i~trda rt that: tlet:ermi.nes the open-door movernc+nl: ak,nor:mai~i.ty 0n:I.y by 3.5 a distance between tlhe landi~r~rge ference posi.ti.011 and the car pos:i..ti.on. [Ooiis] 3:n 1:lic r e l a t e d art:, t h e abnormal.j.t:y ( 1 1 : r e ) occurs when t h e car stops a t t h o 1.ailding r e f e r e ~ i c e pos:il::i.ol?, sllch 20 t h a t !.he c;iit: pos:i.ti.(:)n j.s L~eyond t:lie t:h:~:.e:ilio:I.d. va1.ue o l the dotted i.i.no R01 and t:;he abnorrnal..it:y i s del-.ec?Led w1:ieli tile car descends with bei.ng accclcrated according to the operation t r a c e D04. 1-1s a r e s u l t , the ac:cel.eratj.ori j.s conti.nue(3 as j.liu:jtrated in the operatior1 t r a c e BOG; and %!j the car speed i.s i.ricreased as i ~ l ~ l u s t r a t e d'.i: lio::eir'orc?, t:he bi:alie i:i aci:nai:ed at: title poi.11.t i r i ti.me wlien the abnormality j.s detected and even :i.n the dece:Leration, the time t:o stop and tile long dj.st:ance are required (the r e l a t e d a r t i.11 the drawj.ngs) . 5 i00461 31h.e th.resho1.d val.r.ie (t-lolzted :Li.nes B06 and BOI.) of t:l-ie distance i:equ:i.red to stop rieeds to be s e t so as to prevent passengers firom being sandwiched ?.n the ce.l:Lng or t:hie bottom of the landj~ng, and i.t is p r e f e r a b l e t h a t afire:r 1.0 the car :i.:; emeircjei~cy-stopped, t h e s t e p between the car botto~n and the i.andi.ng whierl. passengers escape from the car t o the 1arid:ing ir; si-i~a:L:la. iid :i.:i sma:i.l.ec fo:r s a f e t y . 1: 0 0 4 '7 :I :In the c?mbod:i.ment, !:he abn.orma1.i t y i s detcerm:ined 15 a.ccor:ding to a detecrn:i.nat:i.oili curve 1103, and tlierefore ever? i.n the case of the operat:i.ol?. t::riicc? 1304, tile abriormiil:i. ty :i.s detect:ed a t arl. i.1-itcrsccti.ng yoi.nL of A04 arid A03. ,i ,h .erc?:forc?, the ak)n.or:rr~;i:l.:i.tyi. :; det:ect:ed at: an eai:l.i.eic poj.nt: of !:i.rnci t:liai? .t:he re:l..ated art:, the moveme~it d:i.stance to Lhi? 20 stop miry be slioi::!:.er, a11d i.il.e escape of the passenger: may e :iafc?r. /:0040] FIG. 8 i.:Llustrates t h a t the detcrminatj-on tilresl-iold val.uc? B01. of E':I:G. '7 :is set. t o be sma1.l.er I.j.ke BOX so as to 2 N n a k e the movc-imenl: dis.i:aince aiiti Lime :shor:t ai Lhc? 1:i.m~: of deceleration. [0049i In the rel-ated a r t , there is a p>ossibil.i.t:y o:f tzl3.e erironeous detect:ion that: tile normal. open-door ~noverne~lt 5 operat:i.on (area withiin curve 1106) of the ca:r il.:l.ustrat:cid i.n I;?(;. 5 is abnormal. That :i.s, therl::? jis a poss:i.b:i.l.ity t h a t an area DO2 beyond tile dotted l i n e B03. wi.thin the curve A06 i:; a11 erroneously detected area. 1 : O O t i O l 10 In the eunbodi.ment, s:i.nce no error1cour;ly detected area DO2 is present, there is 110 r i s k of the erroneous det:ectj.oil. Further, for tAe operalrion t r a c e D03 of the car, si.nc;e t h e ab~~ormal.i.t:yi s detect:ed i.13 t:hc area (area of 1304) t h a t i.s beyond t:he open--door no:trm.al.j~ty area, thic: 7.5 abnorma1i.t~ can be determi-ned ear:l.j.e:r. As a r e s u l t , t l ~ e stiib:i.l.:i.ty :for the open--door movement abnors-i~ali.tym ay be i.sicr:eased arid tile unr1ecessa:r.y cimergel-icy stop i.s avoi~dcd to :i.mp~rove tI?e itravel. :ierv:j.ce of t:l-le e l e v a t o r . 1: (1 0 5 I. 1 20 l.'l:G. 9 ill..i~:;t:.ri~i:ctsi iat, for the descr:i.pi_ion.o f 1;'1(;. !5, the s e t t i i l g va1.u.e of the? iib~?ornial.it.yd etetrmi..l-iat!ion t11resho:l.d val.ue (determinati.on c r i . t e r i a ) is changed, the 1.andi.iig reference positioi? arid the threshold value database 3-07 corr:esponding t o the d.etermi.natj.on. di.sti?nce X 25 are c:iiarrged, and lrhe opcm-door movement ab~:~omia:Lj.t.iy.s defined froin the rel.at:i.oi?ship betweei? the car speed and t:he car pos:i.t:i.on. for stoppirig the car wi.tl1i.n a predetermined dirjtance. 1: 00172 3 ii The requirement of the speed V for emergencystopp: i.nq t h e c a r a t a preciel-ermi.n.ed posi.ti.o~i. ( d i s t a n c e ) XO w:i.th the decel.erat:i.on (3 arid the car position X i s as i-ol:Lows : v = J 1 2 . p . ( x O -- X) 1 (2) fi represents the decel.erai:i.on (deceleration by a wi.iich bralie or a second bralte (rope bralit? or rai.1 bralce)) when tile car i.s ernerger~cy--stopped, X aeprc?sl:i?ts the d:i.st:arlce between tile i.aurd:i.aig rcfe:~:crlcc pos:i:Li.ol? n~:id tbc car posi.t:i.ori, v rcprc:serii:s the abi~orma:l.:i.tyd eterrrl:i.ilairi.oi~ 1.5 t:h~eshol.d value, and XO rc?presc?r?ts the predetermined pos:it:i.oi? (d:i.stan.ce) a t wl.ii.ch t:he car stops. [:oOLi:i] FIG. 1.0 j..:Ll.listi:aies t-.hat t:he sci:i::i.l:~g valile of i:l:ie iib~~o:cma:l.i.tcyJ c?l_e:l~rn:i.r~ati.<)tl'i:il rc:shold val.uc? (clc~~l:c?rin:i.~:~~~~l::i..(~~~ 20 :i.s c;llanyed aiid for tlie landing re:l'or:el:~ce pos:i.t:iorl of tile car stop f l o o r , t h e dead zone (area sandwi.ched by two dotted l.incs 1107) t h a t does not perform determj.nati.011 on the close p o s i t i o n ( d i s t a n c e ) is prov:ided. By provi.di.ny tl-ie dead zone, the time is sliort ( t h e 25 ;ii~p:l.icude width .i.s si-iori:) such t;hat the problem of sa:l?eiy is 11ol: p>u:esent due t o the excessive v i b r a t j . ~ ~d?ey ei?di.~:lg on piissei~gers gei-i':ii.lg 01-1 and off a c a r . However, eve11 w11c.n. the car speed cluse to the landj.ng reference p o s i t - o n i.s signi.f.icaxlt:l.y I.r~creased i.n.stantI.y, the erroneous del:ecti.on 5 car1 be prevented, the unnecessary emergency stop can be avo:i.ded, and the tzravel. servi.ce of the el.evat:or cal? be improved. [0054] FIG. 1.1. il.l.nst:rat:e:; t h a t :for t h e bl~oclc di.agram o:f :LO the UCMp i l l u s t r a t e d i n FIG. 2, the open-door rnovernerit abnormality is determined by t h e c a r speed and position accord:i.ng to the charactei::istj.c:i for oacb :fl.oor and the thrci!illo:!.d va:l~ue data 1.03 corrcspond:i.~?.gt o the fl.oo:~: po:;:i.t:::i.on o:l the car i c , de:fi.~:lc?d. ' h a i , the :fl.oor :i.5 positioii detect:j.on un.j.t 1.08 d e t e c t s the fl.oor p o s i t i o n s ( I .o r , s econd S::l.oor, t l - ~ i r df l.oor, and the l i k e ) of tl1.e car and deter-mi.a.cs t:he open-(loor rnoven~erit abno:r-mal.:i:t:y hy I:11ci opti.mi.zc?d tl-i~:::esho:l.dv al.uc data :1.09 for c?aci~:.f rl.oor pos:i. Li.on . 2 0 1. 0 0 !:I 5 1 'Ilhe i~nputs :i.gna!. for tl-~ef l~ooi?p osi.L:i.oil detecti.on u n i t 108 is the car posit;ion scnsor (rcfcrence numcra:]. 30) i.ll.ustrated i.11 FIG. l and when t h e c a r pos:ition sensor is tbe ph.otoel.ect1::i.c sensor, each f l o o r may be identi-fiied by 25 a detect..citl?ery a:;sen.cjer:i geiti.iig on and o:ff a. car, the abrioirnaiity del:e:u.m:i..liat:i.on. may be made accordj-ng to the number of passengers g e t t i n g on illid off a car, and. the abnormality determii1at:iLon may be performed more accurate1.y wi-lei1 the expaiisi.on o:f the rnaj.~?. ?!3 rope i.s di.rect:ly detect:od by a sensor d:i..:iposed a t the rope end. Reference Signs List 1:0064] 3. Sa :Eety coritrol.:l.er 2 Car 6 Brake 2 :i. Encoder (detection device) 3 0 Car positiorr sensor (positj.011. sensor) 31A, 3LB, 31C Uetecti.013. pLate 41A, 4%B, 41C Landing door switch 4 3 Car door switch 101. Car: speed cal.cu.latj.on u11i.t 1.04 13:i:it:nncc cal.cill;it-i.o1n. 1n:it:b etwec?n 'llill~dirig reS?e:rc;.ncpeo si.t:i.ona.n d car- postion. :I. 5 105 Open-door deter~ninatjon i111:i.t :I. 0 6 A.k>?~.o1r~:miL at y de t:e~:m; a :u11 j~ t of car pas j. t: ion and car speed 10'1 'i'hresbo:l.d va:i.ue database 1. An e:l..evator sysi:ein equipped wj.Ch an un:i.nt:ended car a~ovemeiit protectjoli t h a t stops a car by determ:ini.ng 5 the case, j.n which a car door arid a la?idj.ng door are :i.n an open s t a t e and t-:he car i.s ei.evat:ed from a Sandi.rrg, as open--door rnovelrtent abi~ormal.ity, the system compri.sj..ng : a car door switch t h a t detect:; an open s t a t e of the car door; a landj~ng door :iwi.t:ci.i t:liall d e t e c t s t:he open. 1.0 stal:e of the a n d i n y door; a detection device t h a t d e t e c t s a speed and a inovernonl. amoiinl: o f a cai: and a, fi.oor :re:Kerence p o s i t i o ~ ~ . ; and a :;a:Ec?l:y crontro:Ll.c~r t l l n t ciei:c?rrn:i.iies an open-door 1.5 rnovement a.bnocmaLit:y by an abno~:mal.i.ty deterrninatj.oi?. tilres11ol.d val.ue of a car speed s e t wi.tl-i recipect: to a car position. baseti oji zesult;:; detec.:ted by i.).i(? del.ecti.on deviLcc2. 2 . 'J'he ei.evator system acc:oi:d:i.ny to c1ai.m j., whcreir 20 the detect::i.o~id ev.i.ce :i.l:ic.l.j;.~deas det:c?ction sensor kiiai: d e t e c t s the speed and movement amount of a car and a posi-tion sensor I:liai: d e t e c t s a f l o o r rcforcr~cc position of each fl.oor. 3 . 'Ilhe e:Leva'Lo:r system accor:dj.ng t:.o c:I.aim 1, wherein the safety coni;rol~l.e~c:a l.cu?.ate:i a l~arrdi.iig refererice posi.l::i.on a t whi.ch the car i s i.anded fi:onn t:llc floor :reference posi.ti~on and the movement amount and a deter1ninat:ion distiiiice from the :i..andi.ng rc-?i:erence posi.ti~on ii to the car p o s i t i o n , and when a door i s detected to be i.11 an open s t a t e by tile car doo:r swiltcl.?. and the l.and:i.urg cioor swi:tch, dete:~:mj.nes the opciin-door movement abnorina1it:y by referr:i.ng t o a tl-ireshold value database i.n wl-iich the abnormal.i.ty delserm:i.niit:i.on tlhresl?oi.d v a i ~ i ~ easr e st'ored, 1.0 cor:respoilding t o the determj.nat:ioil disiarice. 4 . The e:Levator system accord?.ng tzo c1.ai.m I., wlierein t:he nbnormal.iLy dc:termi.nati.on. t:l>resho:i.d value::; arc dcf5ncd :i::1)1_. t:o i:l?e car pos:i.t:i.orr, and t:.l?e abnou:ma.l:Lty det:c?rvni.iiat:i.on threshold vaiiie is s e t t o bccomc :;mal.ler as the determination. di-stance i.s increased. tile abiiori~~alii:yd ei:ei-nii.niii:it,ii tilresiio1.d val.ue i.s s e t so as riot: to be erroneous det:ermi.nat:i.on based on the expansi.orr of the rope bringing LIP and down the car due t:o the passenger g e t t i n g in/out of the c a r . 5 ' 7 . The el.evato:r sy:item according to c:l.a:i.m I., wherein the ak)normal..ity determination threshold value is set: based on the? car pvsit::i..orl and the deceleration when the car st:.ops ill. the? predetermi.ned posj.l::ion. 10 8 . The el.evat:or :system accordi.iiq t o c.1ai.m :I, wherei.11 the s a f e t y cont~:ol.:l.er c a i c i i l a t e s a l.ai~d:i.ilg reference posi..ti.o~ia t:. wii:ich hlie car j.s :I.al?ded from the fl.oor 1:e:fercnce pos:i.t:i.on and tile rnovernerlt amount and 8 15 determ:i.nation di.stance from the :l.and:i.ng reference posi~ti.01.1 t o the car posi.t.:i.on, and a dead zone t h a t does not perr:(:oi:n~ the di:er.minat:ion. oil the .I.iindi~ng rcfc~rcnce position i..? prov:iided. 9. Ti~c? e.l.evai:or sysl:erri accoi:.di.ng to ci.aim l ~ , wI:~.c!rei.ii as a stop f l o o r of tl?e car i ~ s l.ower and a heigilt posi.ti.oi7 of t h e c a r i s lower, the abnormality determination thresho1.d value for the car position is Larger. wlierei.il a passenger yettri.i:ig orr/of:f s t a t e deter:mi.ilat:i.oa ~iaiit: tliai: d e t e c t s whether or not passengers are gei:ti.ng on. and off tile car is prov:.i..d.ed, and w1-1el-1 it i.s detectzed t!iat passengers are getl::i.n.g on and ofif the car, t:he abnorma:l.j.ty 5 determi.liahion thresh0:l.d value with respect to a ca~r posi.t:i~o~l :i.:i 1.arger t:i>.an when i.1: i.:i det-.ected t:.hat no passengers are yettiny on and off the c a r . 1.1. The e?.evator systein accordiLny to cl.a:i..m I., l o f u r t h e r comnp:ri.s:i.n.g: an encoder t h a t js operated together with the car to generate a pul~se; a reflect:i.ve p!:iotoe:l.ectr:ic serisotr provi-ded on the car; and a det:ecl:i.oi? pl.at:c? t h a t i s atzi:acl-led to a thresiio.ld of a i.axld:i.ny o:f each fi.oor, :L !i wh.ere:i.n the pul.se i.s courited t o cal.cu.:l.ate tile speed and movein.e~.it amouiit of the car, arid when .tlhci refl.ect:i.ve ~:~hotoel.ec:trics-.e nsor i.s at: a12 oppos:i~tep osi.ti.on t:o t h c det:ectioi> p l i ~ t i ? , the :lf/.oor referel.lce posi.tion i.s d.et:ect:eti. :I.%. 'The c.i.eva.t.oi:: r;ysi:iim accordi.iig to c:l.aim I., w!?ei:e:i.~i the speed arid movernei~t amount of the car and tzhc? fl-oor refereilcc positj.on are detected by readi.ng inilgnetic code informatzion recorded on a magneti-c tape attached in an ascending/descendi.n.g d i r e c t i o n . 13. The e l e v a t o r system according t o cl-aim 1, wherein the speed and movement amount of the car and the f l o o r reference p o s i t i o n are o p t i c a l l y detected.