EP 0301173 B1 19910904 - GROUP CONTROL FOR LIFTS
Title (en)
GROUP CONTROL FOR LIFTS
Publication
Application
Priority
CH 287387 A 19870728
Abstract (en)
[origin: EP0301173A1] With this group control, better assignment decisions can be reached during immediate assignments of floor calls to cars and future overloads can be detected more accurately so that incorrect assignments are avoided and the average waiting times for all passengers are reduced. For the purpose of determining the most favourable car, a computer provided for every lift calculates a sum proportional to the time losses of waiting passengers from the distance between a floor and the car position indicated by a selector (R3), the intermediate stations to be expected within this distance, and the car load. By means of call-recording devices arranged at the floors and in the form of ten-key keyboards, calls for target floors can be input. After the calls are stored, load values contained in a load table (13) are changed in such a way that they are increased at the input floor in proportion to the number of input calls and are reduced at the target floors in proportion to the number of calls for the relevant target floor. The load values thus determined are taken into account in the computation of the sum, a monitoring circuit (14) preventing the assignment of a call causing an overload. <IMAGE>
IPC 1-7
IPC 8 full level
B66B 1/18 (2006.01); B66B 1/20 (2006.01); B66B 1/24 (2006.01)
CPC (source: EP US)
B66B 1/2458 (2013.01 - EP US); B66B 2201/103 (2013.01 - EP US); B66B 2201/211 (2013.01 - EP US); B66B 2201/222 (2013.01 - EP US); B66B 2201/232 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 0301173 A1 19890201; EP 0301173 B1 19910904; AT E66895 T1 19910915; CA 1288181 C 19910827; DE 3864625 D1 19911010; ES 2026595 T3 19920501; JP 2632377 B2 19970723; JP S6443475 A 19890215; US 4939634 A 19900703
DOCDB simple family (application)
EP 88106273 A 19880420; AT 88106273 T 19880420; CA 572959 A 19880725; DE 3864625 T 19880420; ES 88106273 T 19880420; JP 18145588 A 19880720; US 22476088 A 19880727