DE10347591A1 - Measurement and test arrangement identification system converts bit sequence read out of memory into test arrangement-specific identity number uniquely associated with corresponding bit sequence in table stored in data processing unit - Google Patents

Abstract

The system has a measurement and test arrangement (2) to which a non-programmable digital read-only memory (1) is attached and an arrangement (3) for reading the memory coupled to a data processing unit (5) containing a conversion unit for converting a bit sequence read out of the memory into a test arrangement-specific identity number, whereby the identity number is uniquely associated with the corresponding bit sequence in an association table stored in the data processing unit.

Description

The The invention relates to a measuring and test equipment identification system.

The currently valid quality standards Write that all for the product quality relevant test equipment and devices must be marked and calibrated. When Labeling so-called ident numbers have proven that according to individual Determination of the applying companies, e.g. by electronic pen or engraving on the test equipment or devices are applied. The ident numbers must be unique and create permanent associations to the identified object. The ident numbers represent the connection of the test equipment and devices to the corresponding ones Documentations, such as Datasheets, application instructions, Calibration and adjustment certificates as well as records of frequency of use and duration of use as well as information about Calibration intervals and the next Kalibrierfälligkeit.

in the Handling the test equipment and devices it is required again and again, the written down Read ID numbers and transfer them to other documents e.g. when issuing from a magazine or when returning in a magazine as well as for data queries of all kinds. A transmission The ID numbers are also in the compilation before passing to a calibration laboratory, during calibration in the calibration laboratory as well as on the return required after calibration. This transfer activity is time consuming and annoying. Furthermore it can easily lead to errors, e.g. come by number pushers, The later only with increased Effort to be corrected again.

in the Prior art automatic detection systems are known. One The object to be calibrated may e.g. automatically by a barcode system be recognized. The respectively associated calibration parameters can then be read out of a file. A disadvantage with barcode systems is that they are not robust enough to be damaged. Especially can Barcode labels through mechanical as well as petrochemical Lost stress. For In practice, it is necessary to have an identification system all applicable construction and embodiments permanently attachable is. It also needs to be consistent Its against multiple ultrasonic bath cleanings in baths Temperatures up to 50 ° C, usually the baths around watery surfactant solutions is. Barcode labels do not stand up to these requirements.

From Carl Zeiss Jena GmbH is a test equipment identification system known in which a programmable disk on the respective measuring and test equipment is attached. The disk is for the storage of all, also company-specific relevant data intended. However, the pill-shaped memory chips used as data carriers are relatively big and Especially with small measuring and test equipment are disturbing about the outer circumference of the test equipment in front. In addition, must the memory chips before operational capability individually with the desired Information to be programmed. The effort is not irrelevant.

Of these, Based on the object of the invention, a measuring and Prüfmittelidentifikationssystem show, with which an automatic transmission of ident numbers of measuring and testing equipment in a data processing unit is possible, the system in the easiest way also by untrained users reliably and error-free is used, also the recognition system according to the invention compatible to all sorts Ident numbering systems, so that a subsequent introduction at any time with low costs for Procurement and implementation is possible.

These Tasks become with a measuring and test equipment identification system solved with the features of claim 1.

It is essential to the invention that, in contrast to programmable memory chips, a non-programmable digital read-only memory is provided which is attached directly to the measuring and test means. The measurement and test equipment identification system according to the invention further comprises means for reading out the read-only memory, wherein these means for reading are coupled to a data processing unit. Within the data processing unit, a conversion unit is provided. This converts a bit sequence read out from the read-only memory into a tester-specific ID number. The non-programmable digital read-only memory is preferably a transponder in which a specific number or bit sequence is stored which, as a rule, does not correspond to the identification number of the measuring and test device. In principle, it is conceivable that the bit sequence of the read-only memory is converted by a specific algorithm into a test agent-specific ID number. According to the invention, however, an assignment table stored in the data processing unit is provided in which the ident numbers are uniquely assigned to the corresponding bit sequences of the read-only memory. The assignment itself, as well as the passing on of the ident numbers to the various application points and their interaction with other programs, such as a Prüfmittelverwaltung or Prüfmittelkalibrierung is controlled by appropriate, as intuitive as possible to use computer programs. Existing identification number systems can thus be obtained.

One The main advantage is that when using a non-programmable digital read-only memory the risk of data loss, as with a programmable memory chip is substantially reduced is. Even with loss or failure of the read-only memory can this in a simple way by any other read-only memory be replaced. It is just the matching of the allocation table required to the identification number of the measuring and test equipment assign the correct bit sequence to the new read-only memory.

The on the measuring and test equipment conventionally attached ident numbers are redundant and provided it's the quality noun allow, not mandatory. This eliminates the Share for the Labeling costs of the measuring and Test equipment. Of course, the Ident numbers for safety on the measuring and test equipment remain.

at the read-only memory is preferably a transponder, both retrospectively as can already be attached to the measuring and test equipment from the factory. In both cases result Depending on the type of measuring and test equipment particularly useful specific possibilities the attachment. According to claim 2 it is provided that the read-only memory or transponder within a gripping region of a measuring means is arranged. The grip area may be, for example, the grip of a meter, such as. with a micrometer or a throat theory. Within the grip area are different Fastening possibilities conceivable. Depending on the design of the transponder this example a capsule, which is adhesively attached to the test equipment. This Can by using a liquid glue or indirectly by an adhesive tape. The read-only memory can also be laminated.

It is conceivable within the scope of the invention, the read-only memory in a to embed self-adhesive foil bag, which is directly on the Measuring and test equipment is attached. If the transponder in transport and storage containers is attached, this can be placed in corresponding holes in the transport and storage container be included.

Of the Transponder or read-only memory can be under non-metallic covers be placed of all kinds. These are preferably made of plastic, wherein the covering plastic protects the read-only memory from environmental influences (claim 3). Of this embodiment of the inventive concept, in particular for vernier callipers, dial gauges, precision pointers, lever gauge gauges, quick styli, Spirit levels and tape measure capsules Be made use of.

Basically the read-only memory is also surrounded by a heat-insulating coating be or be embedded in this, as in the embodiment of claim 4 is provided. This type of attachment comes e.g. with adjusting pins for Micrometer and internal micrometers for carrying.

For very small Measuring and test equipment allow the quality standards an affixing of the identification number to the transport and storage container associated with the testing device. If the ID number in the measuring and test equipment identification system according to the invention exclusively can be determined by reading the read-only memory, can in corresponding Analogy also be provided that the read-only memory at the transport and storage container of the Measuring and testing equipment is appropriate.

at In addition, the manufacture of new measuring and test equipment exists the possibility, provide special pockets for holding the read-only memory, on the one hand ensure a high degree of mechanical protection, On the other hand, but also allow easy readability (Claim 6). The mechanical protection is ensured in particular then if the read-only memory is not over the outer contour of the measuring and test equipment protrudes. You can do this e.g. provided tangential grooves in Lehereinstell- and threaded rings be, as well as grooves in the metallic handle at Lehrdornen of all kinds and with thread gauges.

There with advancing technological development, it can be assumed that That the read-only memories assume ever smaller sizes, can be to the relief the findability of the read only memory provided a mark be, with which the position of the read-only memory is marked. It is preferably a color mark and / or a single symbol. The mark is special useful if the read-only memory is obscured, e.g. under a Grip is arranged.

The read-only memory is preferably a passive transmission module which is de-energized when at rest. If such a read-only memory in the form of a transponder is brought into the magnetic field of an antenna, it absorbs energy from this field and begins emitting the bit sequence stored in the read-only memory. A high transmission speed can be achieved by a full-duplex operation, ie the power supply and the transmission of the bit sequence occurs simultaneously. A low susceptibility to interference can be ensured via the PSK transmission method (phase shift keying). For example, the antenna responds to the transponder at a frequency twice the frequency with which the transponder responds. Therefore, even a possible frequency drift affects the communication between antenna and transponder only insignificantly.

Essential in the non-programmable digital read-only memory is that the code programmed during production is no longer changed can. This is intended in the case of the measuring and test equipment identification system according to the invention mandatory excluded.

Of course, the Read-only memory with stationary or mobile read-out means are read out. The mobile reading device can Have means for caching.

The The invention will be described below with reference to the schematic drawings illustrated embodiments explained in more detail. It demonstrate:

1 the schematic structure of the measuring and test equipment identification system according to the invention;

2 a read-only memory within a foil bag;

3 a read-only memory on a teaching ring;

4 a read-only memory on a gauge;

5 a schematic representation of a dial gauge with a read-only memory;

6 a micrometer with a read-only memory and

7 an internal micrometer with a read-only memory.

With 1 is in 1 a read-only memory in the form of a miniature transponder, which is connected to a measuring or test device shown schematically 2 is fixed. At a distance from the read-only memory 1 is a means for reading the read-only memory in the form of a read head 3 arranged. The about the readout means 3 Data obtained is via an amplifier 4 a data processing unit 5 fed. On this data processing unit 5 For example, a management and calibration program 6 be installed, which applies the read ID number.

2 shows an embodiment in which a read-only memory 1 in the form of a cylindrically configured mini transponder in a foil bag 7 is included, which is an adhesive layer 8th having. With the help of the adhesive layer 8th can the foil bag 7 be fixed on a measuring and test equipment.

In the embodiment of the 3 is a teaching ring 9 with a cylindrical mini transponder 1 provided in a tangential groove 10 is positioned. The mini transponder 1 is not over the outer circumference of the teaching ring 9 over and inside the tangential groove 10 protected arranged.

4 shows a gauge 11 , in its grip area 12 a groove 13 is available. In this groove 13 is again a cylindrical mini transponder 1 embedded, so that the handling of the gauge 11 not hindered.

The embodiment of 5 concerns a dial gauge 14 , The view shows the dial gauge 14 from the rear, looking towards a closing lid 15 , At the closing lid 15 is a position identification 16 arranged, which shows where the non-illustrated read only memory is positioned.

With a bracket size screw 17 according to 6 it is expedient to use a position marking 16 characterized, not shown in read-only memory in a handle 18 because the read-only memory is arranged in this area particularly protected.

Finally, the shows 7 a micrometer 19 with a thermal insulation 20 , The position identification 16 clarifies that the non-illustrated read-only memory in the internal micrometer 19 in the heat insulation 20 is embedded.

1

Only memory

2

measurement and test equipment

3

medium for reading the read-only memory

4

amplifier

5

Data processing unit

6

Management- and calibration program

7

foil pouch

8th

Adhesive layer v. 7

9

ring gauge

10

Tangential groove in 9

11

gauge

12

Grip area v. 11

13

Groove in 12

14

gauge

15

Closing lid v. 14

16

Position marking for 1

17

Micrometer

18

Handle screw v. 17

19

Internal micrometer

20

thermal insulation

Claims (6)

Measuring and test equipment identification system comprising measuring and test equipment ( 2 . 9 . 11 . 14 . 17 . 19 ), on each of which a non-programmable digital read-only memory ( 1 ), and means for reading the read-only memory ( 1 ) with a data processing unit ( 5 ), wherein the data processing unit ( 5 ) comprises a conversion unit for converting one of the read-only memory ( 1 ) read bit sequence into a test agent-specific ID number, one in the data processing unit ( 5 ) stored assignment table is provided, in which the ID number is assigned to the corresponding bit strings uniquely. Measuring and test equipment identification system according to claim 1, characterized in that the read-only memory ( 1 ) within a gripping area of a measuring and test device ( 9 . 11 . 17 . 19 ) is arranged. Measuring and test equipment identification system according to claim 1 or 2, characterized in that the read-only memory ( 1 ) is protected from environmental influences by a non-metallic cover. Measuring and test equipment identification system according to one of claims 1 to 3, characterized in that the read-only memory ( 1 ) is surrounded by a heat-insulating coating. Measuring and test equipment identification system according to one of claims 1 to 4, characterized in that the position of the read-only memory ( 1 ) on the measuring and test equipment ( 14 . 17 . 19 ). Measuring and test equipment identification system according to one of claims 1 to 5, characterized in that the read-only memory ( 1 ) in a bag ( 10 . 13 ) of the measuring or test equipment ( 9 . 11 ) and not over the outer contour of the measuring or test device ( 9 . 11 ) protrudes.