CPC G08B 21/24 (2013.01) [G06Q 20/202 (2013.01); G08B 21/182 (2013.01)] | 6 Claims |
1. A monitoring device comprising:
one or more processors having programmed instructions to:
determine whether an information terminal is present in a second place different from a set first place, the information terminal moving together with a purchaser and receiving data input regarding commodities for purchase by the purchaser;
detect that the information terminal is left unattended in the second place;
activate an alarm in response to the information terminal being left unattended in the second place for a threshold period of time; and
in connection with the detection that the information terminal is left unattended in the second place, change, before and after an accounting instruction is received by the information terminal regarding the commodities for purchase by the purchaser, the threshold period of time until the information terminal is regarded as being left unattended.
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