METHOD FOR SUPPLYING VARIOUS DEPARTMENTS OF SHOPPING CENTERS WITH DEPARTMENT SPECIFIC INFORMATION

摘要

In a method for supplying different departments of a self-service supermarket equipped with a multiplicity of shopping trolleys with information specific to a department, each of these specific information elements of a specified length is stored decentrally in digital form in a transceiver unit (5) assigned to the respective department (2) and subsequently transmitted in a specified cycle in serial form via an infrared link (6). The information transmitted via the infrared link (6) is received by means of transceiver units (8), which are fitted to all shopping trolleys (7) of the supermarket, belonging to those shopping trolleys (7) which are located in the respective department (2), is temporarily stored in the transceiver units (8) and is then represented on a display (9) of the transceiver units (8). Furthermore, a code number is allocated to each transceiver unit (8) fitted to the shopping trolleys (7), which code number, immediately after each visual representation of information on the display (9) of the respective transceiver unit (8), is transmitted for confirmation purposes via the infrared link (6') to the transceiver unit (5) provided in the respective department (2), where it is recorded. The reception time and the date are allocated in the transceiver unit (5) to each received code number. IMAGE