WO1994011851A1 - Miniaturised telemetry unit - Google Patents

Miniaturised telemetry unit Download PDF

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Publication number
WO1994011851A1
WO1994011851A1 PCT/EP1993/002796 EP9302796W WO9411851A1 WO 1994011851 A1 WO1994011851 A1 WO 1994011851A1 EP 9302796 W EP9302796 W EP 9302796W WO 9411851 A1 WO9411851 A1 WO 9411851A1
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WO
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Patent type
Prior art keywords
control
s3
miniaturized
characterized
telemetry module
Prior art date
Application number
PCT/EP1993/002796
Other languages
German (de)
French (fr)
Inventor
Reinhard Jurisch
Peter Peitsch
Olaf Brodersen
Original Assignee
Micro-Sensys Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/04Arrangements for transmitting signals characterised by the use of a wireless electrical link using magnetically coupled devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
    • B61L25/02Indicating or recording positions or identities of vehicles or vehicle trains
    • B61L25/04Indicating or recording train identities
    • B61L25/048Indicating or recording train identities using programmable tags

Abstract

The invention describes a miniaturised telemetry unit which is used especially for the wireless transmission of measurements obtained by a sensor or measurements transmitted to an actuator or in the programming of control, regulation or monitoring systems. The purpose of the invention, i.e. to provide a miniaturised telemetry unit which can be compatibly introduced into existing identification systems and data stores, is highly flexible in data management and requires little power for its operation even over long distances, is attained in that the telemetry unit comprises essential components of a prior art identification system, like at least an aerial coil (7, 8), an r.f. rectifier circuit (1), a voltage stabilising circuit (2), an impulse generator and demodulator (3), a power/reset circuit (4) and a control and storage core (6) containing essentially a non-volatile store. The control and storage core (6) is contacted by additional line in and outputs (S3) which can be connected to at least one actuator and/or sensor.

Description

Miniaturized telemetry module

description

The invention relates to a miniaturized telemetry module, the signal transmitted with particular sizes for wireless transmission of measured values ​​obtained with a sensor or an actuator, or is used in the programming of control, regulating and control systems.

The method of the telemetry is known. Here is usually by means of a high frequency generator via an antenna system wirelessly fed to a pulse transformer power which is provided with a sensor in connection, the measured values ​​of the reflected wave are impressed and evaluated after demodulation (see FIG. Berther, T. et al, "Multi-channel measuring technique with piezoelectric sensors on rotating systems, "SENSOR'91 Congress Volume II p 257 ff.). The fundamental drawback of this method consists, for example in the limited range and limited efficiency of the RF power transmission. By eddy current losses.

A further disadvantage of the existing systems is that the wired and wireless interface are activated simultaneously.

In a different field of the art for so-called data carrier identification systems are known, for example DE 40 34 225 and WO 92/08209, which realize a contactless effective energy coupling in such volume as also been proposed a process for an effective data transmission PCT / EP93 / 00,748th Such arrangements and methods can be found for example in many areas of automation. For independent tool recognition application. Another widespread application make smart cards. The invention has for its object to provide a miniaturized telemetry module that is compatible can be used with existing identification systems and data memories, having a high flexibility in data management and required for its use, even over long distances, little energy ,

The object of the invention is solved by the characterizing features of the claims.

The telemetry module according to the invention obtains the required energy for its operation state via a wireless interface S2 via a unidirectional or bidirektionle data transfer also takes place with any system, eg. A computer via an intermediate read-write unit. This contactless interface S2 is carried out according to known configurations in the field of identification systems. The telemetry block itself also contains essential elements of a known identification systems, such as at least an antenna coil, an RF-wave rectifying circuit, a voltage stabilizing circuit, a power / reset circuit, and a control and memory core, which includes a non-volatile memory is substantially, wherein the control and memory core cable inlet with additional inputs and outputs (S3) is contacted, which are connectable to at least one actuator and / or sensor and / or a programmable logic.

The telemetry module according to the invention can advantageously find application for the data transmission, for example. On rotating shafts, may be used of physically confined areas, such as vacuum recipient or contactless chip cards oa. In areas where electronic systems have already been introduced, such as automobiles, electronic measuring instruments or PLCs, is the compatibility of the proposed telemetry module is particularly advantageous. In particular in that the telemetry module according to the invention requires only a small or no additional power supply and at the same time contains a non-volatile memory module for temporary storage of information, it can find advantageous application in exemplified use cases.

The invention will be explained with reference to block imagewise schematically illustrated embodiments. Show it:

Fig. 1 is a schematic representation of an inventive

Telemetry module in a transmission system, Fig. 2 is a schematic representation of a telemetry module,

Fig. 3 shows an embodiment of a control and

Memory core with bidirectional serial

Interface S3,

Fig. 4 shows an embodiment of a control and

Memory core with unidirectional parallel

interface and

Fig. 5 shows a telemetry module with integrated pressure sensor. In Fig. 1, the arrangement of a telemetry device according to the invention in a transmission system schematically. The data transmitted from any system 1, such as. A computer, an interface S1 and a read-write station. By means of a contactless inductive coupling via an interface S2 to the telemetry module, which is provided with a line-bound interface S3 at which the coupling takes place of one or more actuators and / or sensors and / or programmable logic. The contactless interface S2 is carried out according to known configurations in the field of identification systems and needs in the other, therefore, not be explained in more detail. The wired interface of the present invention S3 corresponds to a parallel or a serial data interface to a non-volatile memory. The interface S3 is preferred, as well as S1, designed as a serial interface, such as I z C bus or as a standard 4-wire cable.

Further details are shown in Fig. 2. For data transmission as well as for the sequence control of the telemetry module includes a receive and transmit portion, consisting of an RF rectifier circuit 1, a voltage stabilizing circuit 2, a clock generator and demodulator 3, a power on / reset circuit 4, a modulator 5, transmitting and receiving coils 7, 8 and a control and memory core 6, via the always takes the data transfer. The entire assembly is designed integrated on a semiconductor chip. Of the invention-containing control and memory core 6 processes signals, data, clock and POR and performs the interface control and status bus S3 a CSB and a data signal bus DB to. It is within the scope of the invention, this interface also supplying operating voltage lines VDD and VSS, which may provide system 2 with one hand, or voltage can be used for an external feed to the telemetry module.

The lines DATA switch a corresponding to the identification system serial data flow from and to the control and memory core 6, which encodes these specific or decoded. The clock line CLOCK provides one or more synchronous frequencies. Line POR supplies static signals for the case that the interface S2 is operated and the voltage stabilization is sufficient. At the same time one of the LOW-HIGH transitions of these signals acts as a starting edge for program execution in the control and memory core. 6

According to its application, the telemetry chip can execute in the context of the invention in two versions.

An embodiment shown in Fig. 3 illustrates a module that uses a bidirectional serial bus preferably for the interface S2 and S3 to ensure a flow of data in both directions via the interface S3. In Fig. 4 in a scaled down version just one data flow at the interface S3 is implemented, for which preferably a parallel bus is used, which is particularly advantageous for sensor applications. For the application according to the embodiment shown in Fig. 3 embodiment of the control and memory core 6 according to the invention consists of a control logic 9, a nonvolatile memory 10, a selector 11, a multiplexer 12 and a gate circuit. 13

The control logic processes the input signals DATA-I, CLOCK and POR according to known identification systems. In addition, a signal IOS through the interface S3 is fed. In the event that IOS is equal to, for example, logic low or open, during operation of the interface would be S2, a conventional stand-by signal SB example HHLLHHLL sent cyclically. With a logic HIGH on IOS, which is equivalent to the activation of the interface S3, the control logic sends another stand-by signal, for example HHLHHHLH. Thereby, the state of the interface can be controlled in S3 shown in Fig. 1 System 1. According to the invention, the priority of the interface S2 or S3 in the gate circuit 13 is programmed. Has the interface S2 priority is converted by the gate circuit 13, the logical link as follows:

IOS POR IO

HIGH HIGH LOW

LOW HIGH LOW

HIGH LOW HIGH

LOW LOW LOW

Figure imgf000008_0001

IO equal to logical LOW switches over the selector 11, the line data I on DIX and the line clock on CLKX, at logic HIGH on the lines DI DIX and CLK CLKX. In the event that the interface has priority S3, the combination of IOS and POR reads as follows:

IOS POR IO

HIGH HIGH HIGH

HIGH LOW HIGH

LOW HIGH LOW

LOW LOW LOW

Figure imgf000008_0002

The flow of data transfer depends on the programmed priority. Always, however, the transmission of data via an intermediate storage is done in a memory (according to the embodiment in Fig. 3 in the memory 10). and successively in time at the interface S2 and S3. This has the advantage that the systems do not have to work in sync 1 and 2 and can be accessed at any different times to the memory. The control and status lines CSB include in the embodiment of Fig. 3, the functions CLK, RB (Ready / Busy), CS and IOS, ie at eg standard E z PROM Speiehern the signals Clock, Ready / Busy, Chip Select and a programmable input-output status match. The data bus lines are made of DI and DO and correspond to z in serial E PROM Speiehern equivalent data input lines and data output. In the embodiment of FIG. 3 S3 is the interface of six signal lines and two in Fig. 3 operating voltage lines, not shown, VVD and VSS that correspond to the conventional serial E z PROM in the timing and logic in their content.

The embodiment according to Fig. 4 realized on the basis of the block circuit shown in Fig. 2 a unidirectional respectively at the interfaces S2 and S3 taking place data transmission, that is to say, only information from the modulator 5 for the read-write unit and the system 2 to the latch 17 given. The advantage of this embodiment is that external data and internal data of a ROM memory 16, in accordance with a read-only identification system to the modulator 5 will be given. Transmitting the two pieces of information serially through a path from the POR signal and continues switched by a clock counter 14, by sequentially cyclically switched through the parallel information from the memory 16 and the latch 17 corresponding to the counter position by means of a switch 15 to the line DATA-O becomes. This cyclical process is repeated until by POR, the counter 14 is reset. In FIG. 4 is a twice 4-bit structure has been chosen as an example. In Fig. 5 shows an arrangement with an integrated pressure sensor 18 is finally shown schematically. The control and memory core is exemplified analogous to FIG. 4. The pressure sensor may be exemplary implemented as a piezoelectric or silicon pressure sensor. The pressure sensor provides a static pressure signal, its output voltage is advantageously proportional to the applied pressure D. The analog output signal AS is supplied to an analog / digital converter 19, which is connected via a data bus DB to the latch 17th The analog / digital converter is equal to each other controlled by the control signals CLOCK and POR, thereby producing digital output signals from the latch are synchronous tapped. All components of this embodiment are executed integrated on a semiconductor chip ..

Bezugsze ichenliste

1 - RF rectifier circuit

2 - voltage stabilization circuit

3 - clock generator and demodulator

4 - Power / reset circuit

5 - modulator

6 - control and memory core

7, 8 - transmitting and receiving antenna

9 - control logic

10 - non-volatile memory

11 - selector

12 - Multiplexer

13 - gate

14 - Counter

15 - switch

16 - ROM

17 - Latch

18 - piezoelectric or Si-pressure sensor

19 - analog / digital converter

AS - analog signal

D - Pressure

DB - data

DI - Data Input

DO - Data Output

CS - chip status

MUX - Control line of the multiplexer

RS - ROM Select

VDD - Power supply

VSS - Ground, Ground

IOS - I / O-Select, RBX - Memory Ready / Busy

CLK - external clock, DOX - memory data output

POR - Power On / Reset, CLKX - Memory Clock

RB - Ready / Busy, DIX - memory data input

IO - Input / Output Control, SB - Stand-by Signal

Claims

claims
1. Miniaturized telemetry module for contactless data acquisition and transmission, characterized in that the telemetry device has a contactless interface (S2) and to a read-write unit is coupled by this inductive and that it is carried out telemetry module comprehensively semiconductor integrated circuit which wesentliehe assemblies of a known Identifikationss3τstems as at least one antenna coil (7, 8), an RF rectification circuit (1), a voltage stabilizing circuit (2), a clock generator and demodulator (3), a power / reset circuit (4) and includes a control and memory core (6) which includes a non-volatile memory substantially, said control and memory core (6) is contacted with additional cable inlet and outlets, as wireline interface (S3) operate, with at least an actuator and / or sensor and / or a programmable logic ve are rbindbar.
2. Miniaturized telemetry module according to claim 1, characterized in that all of said modules, including the antenna coil and / or the at least one actuator and / or sensor are arranged monolithically integrated on a semiconductor chip.
3. Miniaturized telemetry module claimed in claim 1., characterized in that the control and storage core (6) is essentially a control logic (9), a non-volatile memory (10), a Seeektor (11), a multiplexer (12) and a gate circuit (13), which are mutually connected such and programmed such that the gate circuit (13) determines the priority of the interface (S2) or (S3) and the data transmission via the non-volatile memory (10).
4. Miniaturized telemetry module claimed in claim 1., characterized in that the control and storage core (6) comprises wesentliehen a program counter (14), a switch (15), a non-volatile memory (16) and a latch (17), wherein carried out a unidirectional data transmission from the at least one actuator and / or sensor via contacted with the latch line inputs.
5. Miniaturized telemetry device according to claim 1 and 3, characterized in that the cable inlet and outputs (S3) as a bidirectional, preferably serial bus are executed.
6. Miniaturized telemetry module according to claim 1 and 4, characterized in that the cable inlet (and OFF) gears (S3) as a unidirectional, preferably parallel bus are executed.
7. Miniaturized telemetry device according to claim 1 and 2, characterized in that said cable inlet and outputs (S3) are designed as on-chip wiring patterns.
8. Miniaturized telemetry module 1 to 6, characterized by one of the claims, that the said cable inlet and outputs (S3) from the telemetry module to plug-in, or soldering, or bonding pads for the at least one actuator and / or sensor lead out are.
9. Miniaturized telemetry module according to one of the preceding claims, characterized in that said cable inlet include inputs and outputs (S3) additional operating voltage lines (VDD, VSS).
PCT/EP1993/002796 1992-11-10 1993-10-12 Miniaturised telemetry unit WO1994011851A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEP4237840.0 1992-11-10
DE4237840 1992-11-10

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290622A (en) * 1995-06-13 1996-01-03 Omega Engineering Radiant wave energy-coupled test meter
FR2731532A1 (en) * 1995-06-08 1996-09-13 France Telecom Cable connection for transmission of music or video signals
EP0780822A1 (en) * 1995-12-20 1997-06-25 Philips Patentverwaltung GmbH Method and device for contactless transmission of measured values
DE10041160B4 (en) * 2000-08-21 2004-01-15 Abb Research Ltd. container station
EP1471480A2 (en) * 2003-04-12 2004-10-27 ABB PATENT GmbH Device for detecting or influencing a physical quantity

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0131732A2 (en) * 1983-06-20 1985-01-23 M & FC HOLDING COMPANY, INC. Inductive coupling system for the bi-directional transmission of digital data
EP0287175A1 (en) * 1987-04-13 1988-10-19 N.V. Nederlandsche Apparatenfabriek NEDAP System for the contactless exchange of data

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0131732A2 (en) * 1983-06-20 1985-01-23 M & FC HOLDING COMPANY, INC. Inductive coupling system for the bi-directional transmission of digital data
EP0287175A1 (en) * 1987-04-13 1988-10-19 N.V. Nederlandsche Apparatenfabriek NEDAP System for the contactless exchange of data

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
L.TALAMONTI ET AL: "CONTACTLESS INDUCTIVE-OPERATION MICROCIRCUITS FOR MEDICAL APPLICATIONS", PROCEEDINGS OF THE ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, vol. 10, November 1988 (1988-11-01), IEEE US, pages 818 - 819 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731532A1 (en) * 1995-06-08 1996-09-13 France Telecom Cable connection for transmission of music or video signals
GB2290622A (en) * 1995-06-13 1996-01-03 Omega Engineering Radiant wave energy-coupled test meter
GB2290622B (en) * 1995-06-13 1998-02-25 Omega Engineering Radiant wave energy-coupled test meter
EP0780822A1 (en) * 1995-12-20 1997-06-25 Philips Patentverwaltung GmbH Method and device for contactless transmission of measured values
US5859873A (en) * 1995-12-20 1999-01-12 U.S. Philips Corporation Method and arrangement for non-contact transmission of measured values
DE10041160B4 (en) * 2000-08-21 2004-01-15 Abb Research Ltd. container station
EP1471480A2 (en) * 2003-04-12 2004-10-27 ABB PATENT GmbH Device for detecting or influencing a physical quantity
EP1471480A3 (en) * 2003-04-12 2007-10-31 ABB PATENT GmbH Device for detecting or influencing a physical quantity

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