Presence Check of Objects
First Claim
1. A method of checking the presence of objects, which are characterized by noncontact readable data carriers, wherein each noncontact readable data carrier can be identified unambiguously or in groups, wherein the data carriers of those objects whose presence is to be checked are allocated to one check group, the method comprising the detection of data carriers by data carrier reading means the detection whether at least one of the detected data carriers is allocated to an activation group and the activation of the presence check, if at least one of the detected data carriers is allocated to the activation group wherein it is checked at the time of the presence check whether all the data carriers allocated to the check group are detected by the data carrier reading means and, if not, an alarm signal is transmitted.
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Accused Products
Abstract
The data carriers (T I, T2, T3, T4) of those objects (1, 2, 3, 4) whose presence is to be checked, are allocated to a check group (ÜG), in a method of checking the presence of objects characterized by noncontact readable data carriers, wherein each noncontact readable data carrier can be identified uniquely or in groups. Data carriers (T1 to T6) are detected by data carrier reading means (5) and it is detected whether at least one of the detected data carriers (T1 to T6) is allocated to an activation group (AG). If at least one of the detected data carriers (T4, T5) is allocated to the activation group (AG), the presence check is activated, while it is checked during the presence check whether all the data carriers (T1 to T4) allocated to the check group (ÜG) are detected by the data carrier reading means (5) and, if not, an alarm signal (AL) is transmitted.
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Citations
10 Claims
- 1. A method of checking the presence of objects, which are characterized by noncontact readable data carriers, wherein each noncontact readable data carrier can be identified unambiguously or in groups, wherein the data carriers of those objects whose presence is to be checked are allocated to one check group, the method comprising the detection of data carriers by data carrier reading means the detection whether at least one of the detected data carriers is allocated to an activation group and the activation of the presence check, if at least one of the detected data carriers is allocated to the activation group wherein it is checked at the time of the presence check whether all the data carriers allocated to the check group are detected by the data carrier reading means and, if not, an alarm signal is transmitted.
- 5. A device for checking the presence of objects, which are characterized by noncontact readable data carriers, wherein each noncontact readable data carrier can be identified unambiguously or in groups, wherein the data carriers of those objects whose presence is to be checked are allocated to one check group the device comprising data carrier reading means for detection of data carriers detection means for detecting whether at least one of the data carriers detected by the data carrier reading means is allocated to an activation group and for activation check means if at least one of the detected data carriers is allocated to the activation group wherein the check means are arranged for comparing whether all the data carriers allocated to the check group are detected by the data carrier reading means and, if they are not, for transmitting an alarm signal.
Specification