WO1998008057A1 - Circuit for the indication of the operating states of an appliance - Google Patents
Circuit for the indication of the operating states of an appliance Download PDFInfo
- Publication number
- WO1998008057A1 WO1998008057A1 PCT/DE1997/001780 DE9701780W WO9808057A1 WO 1998008057 A1 WO1998008057 A1 WO 1998008057A1 DE 9701780 W DE9701780 W DE 9701780W WO 9808057 A1 WO9808057 A1 WO 9808057A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- input
- circuit
- nand gate
- activated
- operating states
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
- G01D1/18—Measuring arrangements giving results other than momentary value of variable, of general application with arrangements for signalling that a predetermined value of an unspecified parameter has been exceeded
Definitions
- the invention relates to a circuit for displaying operating states of a device.
- the object of the present invention is to create a generic circuit which detects the operating states of a device and provides information about these operating states in a suitable manner for further use. This object is achieved by the features of claim 1. Advantageous training and further developments are characterized in the subclaims.
- circuit according to the invention it is advantageous to be able to use signals as input signals of the circuit which are already present in the device whose operating state is to be recorded. Furthermore, it is advantageous to be able to display the operating state as simply as possible.
- Other devices such as e.g. B. also a computer, acoustic devices such as horns or optical devices such. B. in the form of traffic lights. The latter case serves in particular to inform operating, maintenance and / or repair personnel.
- FIG. 1 shows the circuit C according to the invention with a display unit Lp connected to it
- FIG. 2 shows a possible implementation of the circuit C of Figure
- FIG. 3 is a timing diagram which exemplifies the input and output signals of the circuit C according to the invention and their relation to one another.
- the circuit according to the invention uses two input signals AUTO and PIEPS. At its outputs, it provides three output signals AI, A2, A3, which can be fed, for example, to a display unit Lp in the form of a traffic light, the lamps gn, rt, ge of which light up in accordance with the output signals AI, A2, A3.
- a possible course of the input and output signals AUTO, PIEPS, AI, A2, A3 assumed for this exemplary embodiment is shown schematically in FIG. Neither the time course of the signals nor their electrical levels are shown to scale.
- the second inverter II has a first and a second inverter II, 12, which are arranged between the one input signal AUTO and a first NAND gate N1, so that a first input of the first NAND gate Nl is connected to the output of the second inverter 12.
- the first output signal AI is produced at the output of the first NAND gate Nl.
- a third and a fourth inverter 13, 14 are arranged between the other input signal PIEPS and a second input of the first NAND gate Nl.
- a second NAND gate N2 at whose output the second output signal A2 is produced, is connected at a first input to the second input of the first NAND gate N1.
- a second input of the second NAND gate N2 is connected to a first circuit node Kl, which lies between the first two inverters II, 12.
- a second circuit node K2, which lies between the third and fourth inverters 13, 14, is connected to a first input of a third NAND gate N3.
- the third output signal A3 arises at the output of the third NAND gate N3.
- a fourth NAND gate N4 with two inputs is also connected at its one input to the first circuit node K1, while its other input is connected to an oscillator circuit Osc, for example a flasher unit circuit.
- the output of the fourth NAND gate N4 is connected to a second input of the third NAND gate N3.
- Operating state is to be displayed, it starts its regular operation (e.g. by manually pressing a start button or the like) and only changes to its inactive state (labeled "0" in FIG. 3) when the device has either completed its intended work steps in a regular manner or when regular operation has been interrupted by outside intervention (for example by maintenance personnel) becomes.
- PIEPS input signal
- the other input signal PIEPS has its activated state (denoted by "1" in FIG. 3).
- the output signals AI, A2, A3, for example, it is assumed that they drive lamps gn, rt, ge of a display unit Lp, the first output signal AI driving the lamp gn, the second output signal A2 the lamp rt and the third output signal A3 the lamp ge .
- the effective values Veffi, Veff2, Veff3, Veff4, which are mentioned further with regard to the activated states H of the output signals AI, A2, A3, are constant electrical potentials.
- the activated states H are referred to as RMS values Veffl, ..., Veff4.
- FIG. 3 now shows the signal profiles at the inputs and the outputs of the circuit C with an assumed process profile and with regard to the display unit Lp, which of the lamps is activated for display on the basis of the output signals.
- one input signal AUTO is activated ("1") and the other input signal PIEPS is deactivated ("0").
- This situation corresponds to regular operation of the device, the operating status of which must be displayed. Due to the circuit shown in Figure 2, only the first output signal AI has its activated state H with a first effective value Veffl, which is greater than a first reference potential Refl, and only the green lamp gn lights up (in continuous operation) as long as there is nothing in the state of the two input signals AUTO, PIEPS changes. Then, however, there is assumed to be some malfunction on the device that the device recognizes.
- the first output signal AI assumes a deactivated state L
- the green lamp gn goes out.
- the second output signal A2 assumes an activated state with a second effective value Veff2, which is greater than a second reference potential Ref2 and only the red lamp rt lights up, since the third output signal A3 maintains its deactivated state L.
- both input signals AUTO, BEEP inactive (0"
- the first output signal AI maintains its deactivated state L
- the second output signal A2 changes to its deactivated state L
- the third output signal A3 assumes its activated state H.
- the third output signal A3 Due to the generation of the third output signal A3 shown in FIG. 2 with the aid of the third (N3) and the fourth NAND gate (N4) and the oscillator circuit Osc, the third output signal A3 in this case has a third effective value Veff3 which is above the value one third reference potential Ref3.
- the third reference potential Ref3 is dimensioned such that the lamp lights up when the third output signal A3 has an effective value that is greater than the third reference potential Re 3. In the specific case, this means that (exclusively) the yellow lamp lights up continuously (in this case the oscillator circuit O ⁇ c has no effect on the third output signal A3) as long as the described state continues.
- the device resumes its regular process (by pressing a "Start”, “Automatic” or similar key), the AUTO input signal (again) assumes its active state “1", while the other input signal PIEPS remains inactive ("0"). This also deactivates the third output signal A3 (state L), and the yellow lamp goes out. While the second output signal A2 remains deactivated (state L), the first output signal AI is (again) activated (state H), so that now only the green lamp gn lights up.
- the first input signal AUTO changes to its inactive state 0 when this process has ended, while the second input signal PIEPS changes to its active state 1.
- the first output signal AI again assumes its deactivated state L, while the already existing deactivated state L of the second output signal A2 is retained.
- the third output signal A3, assumes its activated state H.
- the activated state H of the third output signal A3 again assumes the third effective value Veff3 for the duration of the first time period TI, then the fourth effective value Veff4 for the second time period T2, etc.
- the durations of these two time periods TI, T2 are determined or can be determined by the frequency of the output signals of the oscillator circuit Osc.
- This activated state of the third output signal A3, which causes the yellow lamp to flash, continues as long as nothing changes in the state of the two input signals AUTO, PIEPS.
- the first three effective values Veffl, Veff2, Veff3 of the activated states H of the three output signals AI, A2, A3 can all or partly be different from one another. However, according to the invention, they can also be partially or all the same.
- each of the two time periods TI, T2 lasts at least a minimum so long that a display device Lp connected to the third output signal A3 can reliably detect and display the respective presence of the third and fourth effective values Veff3, Veff4 .
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Logic Circuits (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9903776A GB2332077B (en) | 1996-08-20 | 1997-08-18 | Circuit arrangement for the indication of operating states of a device |
JP51026798A JP3535523B2 (en) | 1996-08-20 | 1997-08-18 | Circuit for indicating the operating state of the device |
US09/253,856 US6115010A (en) | 1997-08-18 | 1999-02-22 | Circuit for displaying operating states of a device |
US09/826,279 USRE38184E1 (en) | 1996-08-20 | 2001-04-04 | Circuit for displaying operating states of a device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19633550A DE19633550A1 (en) | 1996-08-20 | 1996-08-20 | Circuit for displaying the operating states of a device |
DE19633550.7 | 1996-08-20 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/253,856 Continuation US6115010A (en) | 1996-08-20 | 1999-02-22 | Circuit for displaying operating states of a device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998008057A1 true WO1998008057A1 (en) | 1998-02-26 |
Family
ID=7803131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1997/001780 WO1998008057A1 (en) | 1996-08-20 | 1997-08-18 | Circuit for the indication of the operating states of an appliance |
Country Status (5)
Country | Link |
---|---|
US (1) | USRE38184E1 (en) |
JP (1) | JP3535523B2 (en) |
DE (1) | DE19633550A1 (en) |
GB (1) | GB2332077B (en) |
WO (1) | WO1998008057A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2554943A1 (en) * | 1983-11-15 | 1985-05-17 | Hard Electronique | Novel electronic component serving as a pilot lamp |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2752987C2 (en) * | 1977-11-28 | 1984-12-20 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Circuit arrangement for displaying different, preferably optical, identifiers by means of display elements in terminals of a telecommunications system |
AT383691B (en) * | 1982-03-05 | 1987-08-10 | Sticht Fertigungstech Stiwa | SIGNALING DEVICE FOR OPERATING STATUS MESSAGES |
DE3224586A1 (en) * | 1982-07-01 | 1984-01-05 | Bayerische Motoren Werke AG, 8000 München | Operating data acquisition device |
US4837565A (en) * | 1987-08-13 | 1989-06-06 | Digital Equipment Corporation | Tri-state function indicator |
US5256948A (en) * | 1992-04-03 | 1993-10-26 | Boldin Charles D | Tri-color flasher for strings of dual polarity light emitting diodes |
-
1996
- 1996-08-20 DE DE19633550A patent/DE19633550A1/en not_active Withdrawn
-
1997
- 1997-08-18 GB GB9903776A patent/GB2332077B/en not_active Expired - Fee Related
- 1997-08-18 JP JP51026798A patent/JP3535523B2/en not_active Expired - Fee Related
- 1997-08-18 WO PCT/DE1997/001780 patent/WO1998008057A1/en active Application Filing
-
2001
- 2001-04-04 US US09/826,279 patent/USRE38184E1/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2554943A1 (en) * | 1983-11-15 | 1985-05-17 | Hard Electronique | Novel electronic component serving as a pilot lamp |
Non-Patent Citations (1)
Title |
---|
"Tri-color LED Drive System", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 29, no. 1, June 1986 (1986-06-01), US, pages 320 - 321, XP002049400 * |
Also Published As
Publication number | Publication date |
---|---|
DE19633550A1 (en) | 1998-03-26 |
GB2332077A (en) | 1999-06-09 |
JP2001500253A (en) | 2001-01-09 |
JP3535523B2 (en) | 2004-06-07 |
GB9903776D0 (en) | 1999-04-14 |
GB2332077B (en) | 2000-11-15 |
USRE38184E1 (en) | 2003-07-15 |
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