| 摘要 |
Checkout system for supermarkets, in which the customer serving himself from the shelves is forced, owing to the special shape of the shopping trolley (1) designed without merchandise baskets, to position the purchased articles (6) which he has selected with their hang-on label (5), with the price inscribed using data systems technology on the shopping trolley (1) in an alignment or an arrangement such that they are automatically read by reading heads (11), either on passing the checkout barrier or in the shopping trolley (1) itself, and are added by an arithmetic unit to the total sum of the individual prices of the purchased articles (6) hanging on the shopping trolley (1), which total sum is then displayed by the arithmetic unit either by display at the checkout barrier and/or is evaluated in some other way using data systems technology, it also being possible to provide, besides the mechanical means, electronic means, for example light barriers, which excludes the possibility of a customer taking purchased articles (6) through the checkout barrier by means of the shopping trolley (1) in a manner other than with their data-carrying hang-on label (5) properly attached. <IMAGE>
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