公开(公告)号：USRE29450E

公开(公告)日：1977-10-18

申请号：US725687

申请日：1976-09-23

申请人： Arthur F. Goldsby ,  Frank J. Haberl ,  Satish K. Anand

发明人： Arthur F. Goldsby ,  Frank J. Haberl ,  Satish K. Anand

IPC分类号： G06F17/40 ,  G07F5/18 ,  G08B26/00

CPC分类号： G07F11/002 ,  G07F5/18 ,  G07F9/026 ,  G08B26/00 ,  G08B26/006

摘要： This invention relates to a system for monitoring the condition and operation of remotely located machines, such as coin-operated vending machines. In one embodiment, switches in each machine convert operating conditions into a binary digital word for that machine, which is stored temporarily. Such words for a plurality of machines are then transferred to a memory, whence they are retrieved, coded as to machine number and transmitted via telephone line to a control processing unit where the various machine conditions are recorded and displayed.