An electric monitor auto approach (ETV) is a conveyor approach for mild goods transport. The system utilizes independently pushed automobiles journeying on a monorail track network, consisting of straight monitor factors, bends, curves and switch-models for altering of travel path. Cars in an ETV process transport payloads up to 50 kg both vertical and horizontal in constructions and manufacturing crops. ETV methods had been specially put available on the market in the sixties via German enterprise Telelift. Later further organizations like Siemens  or Thyssen engaged in this trade.
At the beginning, electrical track auto programs have been designed for documents transport and mail distribution in workplace structures and headquarters. Later, further applications had been designed for hospitals, librarys, printing crops, retail retailers and fabric dealing with in manufacturing vegetation.
Usually transported items are:
hospital: blood plasma, lab samples, pharmaceuticals, sterile utilities, patient documents, x-rays and sanatorium consumables
Library: books, newspapers, journals, media
Headquarters, ministries, place of job constructions: documents, mail, parcels
Printing crops: printing plates
Retail outlets: garment, footwear, jewelry, luxurious goods
Manufacturing crops: factor components, assemblies, tools
electrical monitor car systems function horizontal and vertical in a single and the identical vehicle per transport job. Conveying with out transfer enables smooth transport of sensitive items. Car vacation spot is quite often typed right into a touchscreen terminal on the station. The automobiles function with a pace as much as 1 m/s.
The modular design of electric track vehicle techniques makes it possible for widespreading monitor networks. E.G., the ETV method within the Bibliothèque nationale de France in Paris consists of 6.6 km tracks, 151 stations and 300 vehicles.