Device for acquiring, storing and evaluating the data of a checking process

• US 4,684,793 A
• Filed: 06/07/1985
• Issued: 08/04/1987
• Est. Priority Date: 07/13/1984
• Status: Expired due to Term

• Current Assignee: Erste Wiener Wach- und Schliessgesellschaft AG, NIWE Incorporated Kamhuber & Company KG
• Original Assignee: Erste Wiener Wach- und Schliessgesellschaft AG, Niwe" ING Kamhuber & Company KG
• Inventors: Kamhuber, Peter
• Primary Examiner(s): Pitts, Harold I.
• Application Number:
  US06/742,282
• Time in Patent Office: 788 Days
• Field of Search: 235/449, 235/472
• US Class Current: 235/449
• CPC Class Codes: G06K 7/081 electrostatic, e.g. by detecting the charge of capacitance between electrodes
• CPC Class Codes: G06K 7/089 hand-held scanners
• CPC Class Codes: G07C 1/20 Checking timed patrols, e.g. of watchman

Abstract

Device for acquiring, storing and evaluating the data of a checking process, comprising a data transmitter which is located at the site of the checking process, a mobile, portable data recording and storing device and a data evaluating device. The data transmitter (1) is formed by a magnetically codeable transmitter and the data acquisition and storage device is formed by a battery-operated device (2) which responds to magnetic signals and is associated with a data evaluating circuit (3,4).

Claims

1. A checking apparatus, comprising:

a data transmitter forming one of a plurality of such transmitters disposed at fixed locations to be checked, each of said data transmitters having an elongated track magnetically encoded with data in a magnetically activatable form specific to the respective location and arrayed along the respective track;

a portable data-acquisition device formed with a head shiftable along the tracks of said data transmitters and including;

a magnetic-field generator in said head for magnetically activating the magnetic coding arrayed along each track upon shifting of said head therealong in a given direction,

a code detector in said head behind said magnetic-field generator with respect to said direction for detecting the respective code, and

a battery-powered electronic storage connected to said code detector for storing electrical signals represented by the code detected by said code detector; and

a data-evaluating device operatively couplable with said portable data-acquisition device for transfer of data represented by the electrical signals stored in said storage for evaluating said data.

2. The checking apparatus defined in claim 1 wherein said data transmitter comprises a bar of a nonmagnetic synthetic resin material formed with a coating which is composed at least in part of magnetizable material to form a coded layer thereon.

3. The checking apparatus defined in claim 2 wherein said bar is provided with a pair of guide grooves flanking a foil formed with said coating and said head is provided with a pair of parallel ribs engageable in said grooves for guiding movement of said head along the track formed by said data transmitter.

4. The checking apparatus defined in claim 3 wherein said data acquisition device further comprises a body containing said battery-powered electronic storage and connected with said head by a bellows forming a stiff but elastic coupling sealingly joining said head with said body.

5. The checking apparatus defined in claim 4 wherein said magnetic-field generator and said code detector are mounted on a common support which is displaceable in said head against a spring force.

6. The checking apparatus defined in claim 5 wherein said data evaluating device is formed with a recess having a configuration complementary to that of said data-acquisition device whereby said data acquisition device can be inserted in said recess for said transfer of data.