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Apparatus for the acquisition of events, in particular in carrier pigeon racing
| Details |
Inventors: Maul, Ludwig; Geisslinger, Klaus; Wietrzynski, Bolko;
Assignee: Diehl GmbH & Co. (Nurnberg, DE)
Primary Examiner: Hofsass; Jeffery
Assistant Examiner: Wong; Albert K.
Attorney, Agent or Firm: Scully, Scott, Murphy & Presser
An apparatus for the acquisition of items of identity information (19/31), in particular for the measurement of sport time and/or for monitoring and possibly invoicing in the course of access checks or operations involving transportation of material, is to be designed to be as manipulation-resistant as possible. For that purpose a distinction is made between local acquisition regions, in each of which is installed at least one reading device (22), and at least one central processing region which is operated separately therefrom and under special control and at which an evaluation device (43) is operated. The transfer of data between the acquisition region and the processing region is effected so-to-speak `physically` by means of an operating device (30) which can only be connected either to the reading device (22) or to the evaluation device (43). The items of identity information (19) which are received in encoded form by way of the reading device (22) and which are called up therefrom in encoded form again by the operating device (30) are linked at the time of their reception with an item of real-time information (27) from an autonomous internal clock circuit (28). The latter is checked at certain intervals by means of a radio controlled clock with reference to the statutory time and if necessary corrected. If the correction value exceeds a certain magnitude, then that is additionally protocoled because the cause of the time correction may be an operational defect in the clock circuit (28) or an external manipulation of the radio telegram received by the time receiver (29). |
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DETAILED DESCRIPTION In accordance with that construction, a distinction is made between a detection or acquisition region, an intermediate storage region and a processing region, in regard to apparatus and space and also in organisational terms.
The acquisition region includes a reading device with its antennae for the contact-less interrogation of identification carriers.
In that respect, by means of an electrical identification, the antennae or reading devices for registration for example of the participants entered in a competition at a central entry location are distinguished from those which detect the arrival of a participant at the finish (for example at the home loft or cote of a carrier pigeon).
In that way it is possible subsequently to ensure that only previously announced (`entered`) participants are also considered in terms of assessment as a winner.
Any item of identity information which is supplied by the antenna is linked in the reading device with an item of safeguard information, and thereafter that combination can no longer be altered.
The safeguard information can be taken from continuous background information or can be derived from a pseudo-random interrelationship or can simply represent a numerical sequence; preferably it includes an item of sequence information in the form of the current moment in time upon acquisition.
Accordingly the subsequent addition of a further identification number would therefore be unavoidably recognisable by virtue of the fact that the interrelationship in terms of development of the safeguard information is broken down, for example because the extent of the data set used, which extent had been closed off, has been enlarged, or because the added data set lies outside the unitary entry time block.
The continuous time information is supplied by an installed quartz clock.
So that all times which are linked to items of identity information can be absolutely compared to each other, from time to time there is synchronisation of the quartz clock with the (statutory) time as can be recorded and decoded by way of the longwave receiver of a radio controlled clock
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