EP0361024B1 - Einrichtung zum Verarbeiten und drahtlosen Senden von Messwerten - Google Patents

Einrichtung zum Verarbeiten und drahtlosen Senden von Messwerten Download PDF

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Publication number
EP0361024B1
EP0361024B1 EP89114037A EP89114037A EP0361024B1 EP 0361024 B1 EP0361024 B1 EP 0361024B1 EP 89114037 A EP89114037 A EP 89114037A EP 89114037 A EP89114037 A EP 89114037A EP 0361024 B1 EP0361024 B1 EP 0361024B1
Authority
EP
European Patent Office
Prior art keywords
microcomputer
measured values
transmitter
logical unit
input
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP89114037A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0361024A2 (de
EP0361024A3 (en
Inventor
Gerhard Kirstein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renk GmbH
Original Assignee
Renk 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
Application filed by Renk GmbH filed Critical Renk GmbH
Publication of EP0361024A2 publication Critical patent/EP0361024A2/de
Publication of EP0361024A3 publication Critical patent/EP0361024A3/de
Application granted granted Critical
Publication of EP0361024B1 publication Critical patent/EP0361024B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/16—Electric signal transmission systems in which transmission is by pulses
    • G08C19/28—Electric signal transmission systems in which transmission is by pulses using pulse code

Definitions

  • the invention relates to a device for processing and wirelessly sending measured values.
  • Known telemetry systems are very expensive, in particular, if they are suitable for processing and sending analog measurement values which are transmitted to a transmitter via amplitude modulation or frequency modulation.
  • the known telemetry systems are particularly expensive because their manufacture requires a great deal of precision work.
  • the object of the invention is to provide a device for processing and wirelessly sending measured values, which is simple even in miniature construction and can be manufactured inexpensively. Furthermore, it should have a high level of functional reliability.
  • the device according to the invention can be built as a very small module, which is much smaller than known devices. This makes it possible to install the device according to the invention in rotating parts, for example in shafts, couplings, gears and the like, and to transmit measured values wirelessly from these parts to external parts which are stationary relative to the rotating parts or have a different speed.
  • the transferable measured values can correspond to speeds, pressures, temperatures, torques, mechanical forces and mechanical stresses and the like.
  • the device according to the invention for processing and wirelessly transmitting measured values is preferably designed as a module as a whole, in accordance with the drawing.
  • the device essentially consists of a measured value processing unit 2 and a transmitter 4, which transmits the measured values processed by the processing unit 2 to a receiver 6 wirelessly.
  • the transmitter 4 is a conventional high-frequency transmitter with two coupling capacitors 8 and 10 at the transmitter input 12, one matching resistor 16 and one transistor 18 connected to a connecting line 14 between the two coupling capacitors 8 and 10 Voltage source 22 and on the other hand connected via a choke 24 and a switch 26 to the plus potential of the voltage source 22.
  • the branch 28 of the transistor 18 connected to the inductor 24 is also connected to a transmission antenna 34 via a capacitor 30 and preferably also a low-pass filter 32. Signals are transmitted wirelessly from the transmitting antenna 34 to an antenna 36 of the receiver 6.
  • an optical transmission diode and an optical reception diode could be used instead of an electrical high-frequency transmitter 4 and high-frequency receiver 6.
  • the measured value processing unit 2 contains a microcomputer 40, a logic module 42, a quartz oscillator 44, a first pulse divider 46 and a second pulse divider 48.
  • the microcomputer 40 there is an analog-digital converter 50 with a large number of analog measured value inputs 51 to 57, a timer 60 and a parallel-serial converter 62 integrated.
  • An output 64 of the microcomputer 40 is formed by the output of the parallel-serial converter 62 and connected to an input 66 of the logic module 42.
  • Logic module 42 is an AND gate, but can also be a NAND gate in an inverted embodiment.
  • An output 70 of the quartz oscillator 44 is connected to a further input 68 of the logic module 42.
  • the first divider 46 is also connected to an output 72 of the quartz oscillator 74 and divides its frequency in a certain ratio so that the desired system clock for the microprocessor 40 is produced.
  • This system clock passes from the first divider 46 via an electrical line 74 to the microcomputer 40.
  • the second divider 48 is connected to the line 74 and divides the system clock generated by the first divider 46 in a certain ratio, so that a monitoring clock occurs, which is from the second Divider 48 is fed to the microcomputer via a line 76 and resets this microcomputer to a specific output value at defined times.
  • the second divider 48 thus forms part of a monitoring circuit, which is also known as a "watch dog" and, in a known manner, resets the microcomputer 40 to an initial value after every nth cycle, at which a program in the microcomputer begins to run again.
  • a disturbance can be, for example, a voltage drop or electrical interference pulses.
  • the timer 60 has an input 78 for digital measured values, which can be on-off signals, speed sensor pulses, frequency sensor pulses, time measuring pulses and counting pulses.
  • Electrical adaptation elements 85 to 89 can be arranged in the measured value feed lines 80 to 84 of the digital and analog inputs 78 and 51 to 57. They transform the measured values measured by measured value sensors in such a way that they lie within an electrical value range permissible for the inputs.
  • the adaptation elements can be, for example, differential amplifiers, voltage dividers, impedance converters or electrometer amplifiers.
  • Analog inputs 51 to 57 can be analog measured values, for example of strain gauges for torque measurement, bending stress measurement of shafts and wheels or for measuring tooth root stresses of teeth of gears.
  • temperatures and viscosity of gear oil or engine oil can be measured by sensors in the form of analog signals.
  • the invention is therefore preferably used for analog and / or digital measurement of measured values of gears and drive elements such as. B. clutches, brakes, shafts and bearings, as well as motors and test benches for gearboxes and drive elements and motors.
  • the positive potential 90 of the voltage source 22 is connected via a line 91 to the input 51 of the analog-digital converter 50.
  • the microcomputer 40 switches to another program in the event of a voltage undersupply, by means of which less power is consumed is reduced, for example by reducing the number of data that the microcomputer 40 supplies to the transmitter 4.
  • This program which is cheaper in terms of power consumption and which can also be referred to as an emergency program, can, for example, cause data to be sent only in interrupt mode, so that the very high power consumption of high-frequency transmitter 4 is reduced.
  • the microcomputer 40 switches the transmitter 4 off whenever the microcomputer is processing measured values.
  • the microcomputer 40 actuates via a control line 92 a relay 94 which actuates the switch 26 which is located in an electrical voltage supply line 96 of the transmitter 4 which is connected to the positive potential 90 of the voltage source 22.
  • the relay 94 opens the switch 26.
  • the switching off of the transmitter 4 to avoid electromagnetic interference is particularly expedient during the conversion of measured values by the analog-to-digital converter 50 of the microcomputer 40.
  • the timer 60 of the microcomputer 40 is not as sensitive to electromagnetic interference when processing measured values.
  • a temperature sensor 98 which measures the temperature of the device 2, 4, is connected to the analog input 57 via the measured value supply line 84.
  • the temperature measured value is converted by the analog-digital converter 50 in the same way as the other analog measured values and, after further processing in the microcomputer 40, is transmitted wirelessly from the transmitter 4 to the receiver 6. In this way, temperature-dependent deviations in measured values can be compensated.
  • the parallel-serial converter 62 generates 64 pulses at its output, the "lengths" and “distances from one another" of which are, in a known manner, a coded representation based on the principle of serial data transmission of the measured values processed by the microcomputer 40.
  • the pulses of the parallel-serial converter 62 pass from its output 64 via a line 65 to the input 66 of the AND gate 42.
  • This AND gate 42 then transmits the high frequency generated by the quartz oscillator 44 from the input 68 to the output 69, and thus on the transmitter 4 when there is a "logical 1" at the other input 66 of the AND gate. If the execution is negated, that is to say if a NAND gate 42 is used instead of an AND gate, the pulse high frequency of the quartz oscillator 44 is then transmitted to the output 69 and thus to the transmitter 4 when a "logic O.” " is available.
  • a commercially available module is used as the microcomputer 40, in which the parallel-serial converter 62, the analog-digital converter 50 and the timer 60 are integrated.
  • the entire device 2, 4 is designed according to the invention as a single module.
  • the analog-digital converter 50, the timer 60 and the parallel-serial converter 62 form an integral part of the microcomputer 40 and, together with programs of the microcomputer 40, effect the processing of the measured values to be carried out by the microcomputer 40.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Transmitters (AREA)
EP89114037A 1988-09-29 1989-07-29 Einrichtung zum Verarbeiten und drahtlosen Senden von Messwerten Expired - Lifetime EP0361024B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3832985A DE3832985A1 (de) 1988-09-29 1988-09-29 Einrichtung zum verarbeiten und drahtlosen senden von messwerten
DE3832985 1988-09-29

Publications (3)

Publication Number Publication Date
EP0361024A2 EP0361024A2 (de) 1990-04-04
EP0361024A3 EP0361024A3 (en) 1990-05-09
EP0361024B1 true EP0361024B1 (de) 1994-02-09

Family

ID=6363920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89114037A Expired - Lifetime EP0361024B1 (de) 1988-09-29 1989-07-29 Einrichtung zum Verarbeiten und drahtlosen Senden von Messwerten

Country Status (4)

Country Link
US (1) US5041827A (ja)
EP (1) EP0361024B1 (ja)
JP (1) JPH02109199A (ja)
DE (2) DE3832985A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4033053C1 (ja) * 1990-10-18 1992-03-05 Hottinger Baldwin Messtechnik Gmbh, 6100 Darmstadt, De
DE4039355C2 (de) * 1990-12-10 1998-07-30 Bosch Gmbh Robert Vorrichtung zur Funktionsüberprüfung einer Watchdog-Schaltung
DE4120104A1 (de) * 1991-06-14 1992-12-17 Alois Dipl Ing Rueschen Funkanlage zur uebertragung von inspektionsdaten
ES2038920B1 (es) * 1991-11-15 1995-01-16 Electronic Traffic Sa Procedimiento automatico de registro de imagenes por camara de tv. para informaciones de trafico.
FR2693068B1 (fr) * 1992-06-25 1995-05-24 France Etat Armement Système de télémesure des paramètres d'un engin mobile.
DE4235187A1 (de) * 1992-10-19 1994-04-21 Metrona Waermemesser Union Einrichtung zum Ablesen von Verbrauchswerten in einem Gebäude anfallender Verbrauchsmengen
JPH06301882A (ja) * 1993-04-19 1994-10-28 Adobanetsuto:Kk 信号処理用集積回路及び信号処理装置
JP2790975B2 (ja) * 1993-09-24 1998-08-27 関西電力株式会社 人孔内監視装置に使用する伝送装置
US7623910B2 (en) * 2006-03-10 2009-11-24 University Of Rochester ECG-based differentiation of LQT1 and LQT2 mutation
CN107864682B (zh) * 2017-05-27 2021-02-19 广东易百珑智能科技有限公司 超微功耗信号发射装置及其应用

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7106855A (ja) * 1971-05-19 1972-11-21
DE2346706A1 (de) * 1973-09-17 1975-04-03 Hoechst Ag Neue, nicht natuerlich vorkommende analoga von prostansaeuren und verfahren zu ihrer herstellung
JPS5438156A (en) * 1977-09-01 1979-03-22 Mitsubishi Electric Corp Telemeter apparatus of rotating machines
US4295139A (en) * 1979-05-07 1981-10-13 Arpino R Method for transmitting airport weather information
DE3340052A1 (de) * 1983-11-05 1985-05-15 Simprop electronic Walter Claas GmbH & Co, 4834 Harsewinkel Verfahren und schaltung zur erzeugung und uebertragung einer vielzahl von ausgangssignalen
HU191156B (en) * 1984-07-11 1987-01-28 Metripond Merleggyar,Hu Measuring and signal processing arrangement for continuous operating of casting ladle balance
JPS61176827A (ja) * 1985-02-01 1986-08-08 Nakamura Kogyosho:Kk 熱電温度計
DE3511504A1 (de) * 1985-03-29 1986-10-09 Bergwerksverband Gmbh, 4300 Essen Einrichtung zur erfassung und uebertragung von messdaten eines kohlenhobels
US4783659A (en) * 1986-08-22 1988-11-08 Rosemount Inc. Analog transducer circuit with digital control
JPS63148733A (ja) * 1986-12-11 1988-06-21 Nec Corp 多重化変調装置
JPS63148732A (ja) * 1986-12-11 1988-06-21 Nec Corp 多重化変調装置

Also Published As

Publication number Publication date
EP0361024A2 (de) 1990-04-04
US5041827A (en) 1991-08-20
JPH02109199A (ja) 1990-04-20
DE3832985A1 (de) 1990-04-05
DE58906936D1 (de) 1994-03-24
EP0361024A3 (en) 1990-05-09

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