EP0909996A2 - Montre radio alimentée par énergie solaire - Google Patents

Montre radio alimentée par énergie solaire Download PDF

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Publication number
EP0909996A2
EP0909996A2 EP98119256A EP98119256A EP0909996A2 EP 0909996 A2 EP0909996 A2 EP 0909996A2 EP 98119256 A EP98119256 A EP 98119256A EP 98119256 A EP98119256 A EP 98119256A EP 0909996 A2 EP0909996 A2 EP 0909996A2
Authority
EP
European Patent Office
Prior art keywords
drive pulse
clock
radio clock
radio
processor
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.)
Withdrawn
Application number
EP98119256A
Other languages
German (de)
English (en)
Other versions
EP0909996A3 (fr
Inventor
Johannes Dr. Neudecker
Thomas Dr. Lechner
Holger Rudolph
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.)
Junghans Uhren GmbH
Original Assignee
Junghans Uhren 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 Junghans Uhren GmbH filed Critical Junghans Uhren GmbH
Publication of EP0909996A2 publication Critical patent/EP0909996A2/fr
Publication of EP0909996A3 publication Critical patent/EP0909996A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
    • G04G19/08—Arrangements for preventing voltage drop due to overloading the power supply

Definitions

  • the invention relates to a solar powered radio clock according to the preamble of Claim 1.
  • Such a radio clock is known from EP-A-0 208 986.
  • the clock includes the work of the processor and the receiver a radio clock of the type described in more detail, for example, in EP-B 0 180 880 is.
  • the pointer position detection of the radio clock leads to the automatic correction of the Pointer position as soon as valid current time information is received by radio and could be decoded in the processor. So the consumer needs for that Do no handling at the start of operation: As soon as enough light energy the clock sets to ensure that the memory is sufficiently charged operates automatically and finally automatically sets itself to the correct one Time display on.
  • EP-B 0 180 155 because during the proofreading occurring high walking speed with a correspondingly increased dynamic Load of the stepper motor due to the moment of inertia of the clockwork gear represents an extreme load on the energy source and the drive system, which is why the risk of losing a motor step is particularly high.
  • an operating circuit with a so-called step monitor is provided, the triggers at least a partial restart and preferably a processor reset if a drive pulse occurs that no longer has the necessary energy content for the Includes step control of the electromechanical transducer.
  • this step monitor corresponds So not that of a control and control circuit that minimizes the Power consumption of a clock stepper motor is known and is based on the step pulse to control the electromotive converter successively shorten - until it is no longer sufficient for step operation and therefore after Inserting a high-energy correction pulse is extended again, the According to the state of the art, whether an motor step was carried out correctly Technology usually detected inductively by means of an electrodynamic circuit becomes.
  • the step monitor used according to the invention prevents a false display, by switching off at least essential parts of a radio clock and new be started.
  • the recipient also wins of a current time telegram is switched on in order to then move the pointer to the one that is now applicable Rotate angular position - when the stored operating voltage is up to has not finally dropped so far that no new commissioning at all the radio clock can do more (before the memory from its photovoltaic Reload the cell to above the critical operating voltage threshold is).
  • the solar-powered radio-controlled clock 11 which is simplified in terms of the block circuit diagram in FIG. 1
  • the genus defined in more detail at the beginning has an electromechanical time display 12 approximately in the form of numerical flaps or preferably equipped with pointers 13.
  • the pointers 13 are kept out of time by a processor 14 or a separate, preferably quartz-stabilized, clock circuit via at least one electromechanical converter 15, in particular a stepper motor, and the gear system the pointer mechanism 16 moves.
  • the control of the converter 15 with drive pulses 17 (FIG. 2a) usually takes place via an approximately active one Bridge network designed driver circuit 18th
  • the time display 12 is from the processor 14 at the start of operation and then by time currently a receiver 19 temporarily turned on, which is a coded absolute Receives time information and as a demodulated telegram 20 for decoding delivers to processor 14.
  • the one obtained in the processor 14 by decoding absolute time information is (also in processor 14) with the current one Position of the pointer 13 compared to if necessary - in addition to the time-keeping Periodicity of the regular drive pulses 17 - correction drive pulses to deliver to the converter 15.
  • a pointer level control circuit preferably on a light barrier query of certain wheel positions in the pointer mechanism 16 is based (cf. EP-A 0 529 390), the processor 14 leaves the respective one Detect passage of the pointer 13 through a reference position and then the continue to count driving impulses 17 until the pointers 13 are correct Angular position with respect to the absolute time transmitted by radio.
  • This radio-controlled operation of the clock 11 takes place from a chemical or physical Charge energy storage 21, which consists of a photovoltaic cell 22 (commonly referred to as a solar cell) is recharged.
  • a chemical or physical Charge energy storage 21 which consists of a photovoltaic cell 22 (commonly referred to as a solar cell) is recharged.
  • One also as a solar manager Operating control 23 to be designated ensures that the memory 21 on the one hand not overloaded from cell 22 and on the other hand not by consumers the radio clock 11 is discharged below an operationally critical voltage level.
  • the operation control 23 can also perform the task via the processor 14 at the start of operation only the functionally essential consumers to switch to the memory 21, so that its not yet at full operating level increased voltage does not fall below the level due to high load Operating limit drops, as described in EP-B 0 208 986.
  • the operating control 23 according to EP-B 0 285 838 can also be used for this ensure that depending on the operating conditions dispensable consumers for protection of the memory 21 can be temporarily switched off. This applies in particular the night time, if there is no reloading of the memory 21 in the dark from the cell 22, which is why functions can be switched off would only disturb at night anyway or would practically not come into its own - how about an hourly chime or the time display 12 which is not readable at night anyway Pointer 13 or in the display 24.
  • the operational control 23 the sub-function lock is released again and in particular the receiver 19 turned on in the manner described above Way the position of the pointer 13 again in line with the current given time.
  • a step monitor is used to intercept this malfunction 25 provided, as outlined in Fig. 1 separately, but also in the frame the functionality of the processor 14 can be realized.
  • This step monitor 25 is from the starting edge 26 of each step pulse 17, expediently delayed by a predetermined range v to generate a control window 27 of the gate length t (with v + t ⁇ T according to FIG. 2 a / b) initiated. It's over before the pulse duration T of the drive pulse 17 (typically 8 milliseconds, for example Length of common small watch stepper motors as the walking 15) expired is. If within the window 27, ie before the end of the gate length t (Fig. 2b), one End edge 28 occurs (Fig.
  • the drive pulse 17 does not have the energy content according to its continuous pulse duration T (Fig. 2a), but it is at least interrupted - namely as a result of a temporary breakdown of the operating voltage, that is, as a result of the current shortfall of what is necessary for operation Levels at memory 21. Therefore, neither the sum nor even each individual the chopped impulses 17 '+ 17' 'to a correct step movement of the Motor 15 lead.
  • the step monitor 25 delivers a reset command 29 (FIG. 2d) to the processor 14. This leads to the initiation of a restart Correction of the time displays of the radio clock 11 as described above; which one but is actually only carried out if the power reserve of the Memory 21 is still sufficient for this. Otherwise, the radio clock 11 remains by the of the storage voltage-dependent operating control 23 is switched off until it is due to sufficient charge increase in memory 21 again initiated a restart.
  • the operating voltage can therefore drop permanently below the switch-off level to a false indication because not more each pulse 17 for the electromechanical converter 15 to advance the display is sufficient, since the impulse loading leads to an at least short-term Collapse of the already critically lowered operating voltage leads the solar cell buffer memory 21.
  • a solar powered radio clock 11 therefore, according to the invention, carries out the interruption detected by a step monitor 25 or shortening a drive pulse 17 for the time-keeping pointer movement to trigger a reset command 29 to the receiver 19 of the Turn on radio clock 11 and thereby the radio clock processor control Pointer position automatically on the decoded from the current time telegram correct absolute time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
EP98119256A 1997-10-17 1998-10-13 Montre radio alimentée par énergie solaire Withdrawn EP0909996A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29718454U 1997-10-17
DE29718454U DE29718454U1 (de) 1997-10-17 1997-10-17 Solarbetriebene Funkuhr

Publications (2)

Publication Number Publication Date
EP0909996A2 true EP0909996A2 (fr) 1999-04-21
EP0909996A3 EP0909996A3 (fr) 2002-12-18

Family

ID=8047368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98119256A Withdrawn EP0909996A3 (fr) 1997-10-17 1998-10-13 Montre radio alimentée par énergie solaire

Country Status (4)

Country Link
US (1) US6205091B1 (fr)
EP (1) EP0909996A3 (fr)
JP (1) JPH11160464A (fr)
DE (1) DE29718454U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002014960A2 (fr) * 2000-08-11 2002-02-21 Seiko Epson Corporation Appareil électronique et procédé de régulation correspondant

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1128348T3 (da) * 1999-09-02 2004-04-05 Innovacio Viaria S L Signalfyr
JP3536852B2 (ja) 2002-03-27 2004-06-14 セイコーエプソン株式会社 電子時計
DE602004014082D1 (de) 2003-05-09 2008-07-10 Seiko Epson Corp Elektronische uhr mit kabelloser kommunikation funktion
JP5353303B2 (ja) * 2009-03-02 2013-11-27 セイコーエプソン株式会社 電子機器および電子機器の衛星信号受信方法
JP5953722B2 (ja) * 2011-12-05 2016-07-20 セイコーエプソン株式会社 電子時計
CN105723286B (zh) * 2013-11-12 2018-11-13 精工电子有限公司 时刻修正系统、电子设备、钟表以及记录介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285838A1 (fr) * 1987-03-11 1988-10-12 Junghans Uhren Gmbh Horloge autonome radiopilotée
EP0553722A2 (fr) * 1992-01-28 1993-08-04 Junghans Uhren Gmbh Petite montre-radio autonome à affichage autonome, en particulier montre radio bracelet
EP0591557A1 (fr) * 1992-04-27 1994-04-13 Citizen Watch Co. Ltd. Montre electronique a aiguilles

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023344A (en) * 1975-09-03 1977-05-17 Kabushiki Kaisha Suwa Seikosha Automatically corrected electronic timepiece
US4582434A (en) * 1984-04-23 1986-04-15 Heath Company Time corrected, continuously updated clock
DE3439638C1 (de) 1984-10-30 1986-05-15 Gebrüder Junghans GmbH, 7230 Schramberg Autonome Funkuhr
DE3524290A1 (de) 1985-07-06 1987-01-15 Junghans Uhren Gmbh Mittels solarzellen betriebenes elektrisches kleingeraet, insbesondere solaruhr
DE9010270U1 (fr) * 1990-05-04 1991-09-05 Junghans Uhren Gmbh, 7230 Schramberg, De
DE4128752C2 (de) 1991-08-29 1997-12-04 Junghans Uhren Gmbh Stellungsdetektions- und -Korrektureinrichtung
DE19700108B4 (de) * 1997-01-03 2005-12-22 Citizen Watch Co., Ltd. Elektronische Uhr und Ladeverfahren derselben

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285838A1 (fr) * 1987-03-11 1988-10-12 Junghans Uhren Gmbh Horloge autonome radiopilotée
EP0553722A2 (fr) * 1992-01-28 1993-08-04 Junghans Uhren Gmbh Petite montre-radio autonome à affichage autonome, en particulier montre radio bracelet
EP0591557A1 (fr) * 1992-04-27 1994-04-13 Citizen Watch Co. Ltd. Montre electronique a aiguilles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002014960A2 (fr) * 2000-08-11 2002-02-21 Seiko Epson Corporation Appareil électronique et procédé de régulation correspondant
WO2002014960A3 (fr) * 2000-08-11 2002-10-10 Seiko Epson Corp Appareil électronique et procédé de régulation correspondant
US7265520B2 (en) 2000-08-11 2007-09-04 Seiko Epson Corporation Electronic apparatus and method of controlling the electronic apparatus

Also Published As

Publication number Publication date
EP0909996A3 (fr) 2002-12-18
US6205091B1 (en) 2001-03-20
DE29718454U1 (de) 1999-02-11
JPH11160464A (ja) 1999-06-18

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