EP1247145B1 - Uhr die eine vorrichtung zur anzeige des zustandes der batterie aufweist - Google Patents

Uhr die eine vorrichtung zur anzeige des zustandes der batterie aufweist Download PDF

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Publication number
EP1247145B1
EP1247145B1 EP01978709A EP01978709A EP1247145B1 EP 1247145 B1 EP1247145 B1 EP 1247145B1 EP 01978709 A EP01978709 A EP 01978709A EP 01978709 A EP01978709 A EP 01978709A EP 1247145 B1 EP1247145 B1 EP 1247145B1
Authority
EP
European Patent Office
Prior art keywords
circuit
battery
watch
counting
assessing
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
EP01978709A
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English (en)
French (fr)
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EP1247145A1 (de
Inventor
Urs Haeni
Laurent Boillod
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.)
ISA France SA
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ISA France SA
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Publication date
Application filed by ISA France SA filed Critical ISA France SA
Publication of EP1247145A1 publication Critical patent/EP1247145A1/de
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Publication of EP1247145B1 publication Critical patent/EP1247145B1/de
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Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G04C10/04—Arrangements of electric power supplies in time pieces with means for indicating the condition of the power supply

Definitions

  • the present invention relates to a watch equipped with a device for indicating the state of batteries. Such devices are well known to those skilled in the art.
  • US Pat. No. 5,446,702 includes, in a watch, a circuit for determining at least one physical characteristic of the battery that varies when it is at the end of its life, means for display of the state of the battery, and a control circuit of the display means.
  • An independent motor is for driving the display device. When this load falls below a limit value, the electronic circuit instructs the motor to drive the display device to a position indicating end of life of the battery.
  • the information thus given is therefore of the binary type.
  • the wearer of the watch has a few days to change the battery.
  • the device in which the device is intended to equip a watch which comprises several electrical components, at least one of which serves to activate a complementary function at the request of the user, the device counting includes a memory in which information relating to the consumption of this component is stored. The counting circuit is arranged in such a way that it sends to the evaluation circuit information relating to the energy consumed, whenever the complementary function, activated on demand, is requested.
  • the evaluation circuit it is generally advantageous for the evaluation circuit to be arranged in such a way that it sends to the control circuit the information coming from the counting circuit as long as the information coming from the determination circuit indicates a normal operation of the circuit. the battery. Indeed, in the In most cases, the information from the determination circuit varies only when the available energy can only ensure a few days of normal operation. By doing so, the watch indicates, during most of the operating time of its battery, information from the counting circuit and which is given from the consumption of the various components, while at the end of its life, is the determining circuit which takes over, so that the displayed information is based on information on the state of the battery.
  • the display means comprises a needle.
  • the control circuit is arranged so that, for a given energy consumption, the movement of the needle is all the more important that the available energy is low. In this way, the reading can be done on an important angle at the end of life, which corresponds to the most critical period.
  • the display means further comprise a scale opposite which the needle moves.
  • This scale has a first sector, which indicates the available energy, between 100% and a non-zero value and a second sector, which indicates that the battery is at the end of its life.
  • the control circuit is arranged so that it brings the needle facing the first sector exclusively as the information from the counting circuit is considered the most relevant.
  • the control circuit is arranged so that the needle is brought facing the second sector when the evaluation circuit sends an end of life indication command to the control circuit, as soon as the information coming from the circuit determination shows that the physical characteristic of the stack varies.
  • the watch schematically represented in FIG. 1 comprises, in a conventional manner, a battery 10, an electronic time counting circuit 12, an electronic alarm circuit 14 and a device for detecting and indicating the state of the battery. 16.
  • the battery 10 supplies the circuits 12 and 14 as well as the device 16, as shown in the drawing by the thick lines.
  • the time counting circuit 12 comprises a time base 18, in general a quartz and its maintenance circuit, a frequency divider 20 providing, in addition, a counter function, and an electromagnetic transducer 22, formed of a motor and its control circuit.
  • the time base 18 delivers a sinusoidal signal of stable frequency.
  • the divider 20 converts the sinusoidal signal into square pulses and divides the frequency to 1 Hz or below, depending on the rotation frequency of the motor.
  • the divider 20 provides, in addition, a counter function. It is arranged to contain the information relating to the second, the minute and the hour of the current time.
  • the 1 Hz signals are applied to the motor control circuit, which delivers motor pulses.
  • the motor of the transducer 22 comprises a rotor driven by these driving pulses, which rotates a gear train, schematically represented at 24, which carries needles ensuring the display of the current time.
  • the alarm circuit 14 is formed of a comparator 26, a memory 28, a control 30 and an electroacoustic transducer 32. It is intended to attract the attention of the wearer at a given moment, chooses to advance.
  • the comparator 26 is connected to the divider circuit 20, the memory 28 to the control 30. When there is identity between the contents of the memory 28 and the counter portion of the divider 20, this means that the chosen instant is reached .
  • the comparator 26 informs the control 30 which then activates the transducer 32.
  • the device for detecting and indicating the state of the battery 16 comprises a circuit 34 for determining the state of charge of the battery, a circuit 36 for counting the energy consumed by the components of the watch, display means 38, a control circuit 39 of the display means, and an evaluation circuit 40.
  • the circuit 34 determines whether or not the voltage measured under load is lower than a limit value which, when it is reached, means that the battery is reaching the end of its life. It is connected to the terminals of the battery 10 or a resistor disposed in series at its output, to measure the voltage, in a conventional manner.
  • the counting circuit 36 is connected to the divider 20 and the control 30. It thus knows the time during which the transducer 32 operates and the number of times that the alarm is activated. It will be noted that it is not necessary for the counting circuit 36 to be connected to the transducer 22, since the latter operates in a regular manner, so that its consumption can be evaluated on the basis of the information coming from the divider 20.
  • the counting circuit 36 would also be connected to the control circuit of this function, in order to know the time during which it operates.
  • the counting circuit 36 includes a memory and a decrementing counter, which have not been shown in the drawing, to avoid overloading it.
  • the memory contains information relating to the predictable capacity of the battery and to the power consumption of each of the components of the watch, which will be specified below. This information is introduced in manufacturing.
  • the display means 38 are partially shown in FIG. 2. There can be seen a needle 42 and a display scale 44 having a first sector 44a opposite which are indications relating to the load, in this case the numbers "100, 50, 20 and 10", and a second sector 44b opposite which is the needle 42 when the battery is at the end of life.
  • the needle 42 is carried by a mobile part of a gear train, itself driven by a stepper motor. Both the motor and the gear train have not been shown, to avoid overloading the drawing.
  • the evaluation circuit 40 receives information from both the determination circuit 34 and the counting circuit 36.
  • the watch as defined above further comprises control means for correcting the displayed time and for introducing the times at which the alarm must be activated, which have not been represented, since they are perfectly known to those skilled in the art. It works in the following way.
  • the time base 18 delivers a signal to the input of the divider 20.
  • the latter sends pulses to the motor 22 which drives the gear train 24.
  • the divider 20, in its counter part, comprises the information relating to the current time, the minute, the hour, the day, etc.
  • the control means of the watch are, for example, formed of a crown or pushers, which make it possible to modify the information displayed by the hands, by rotating the motor 22 at high speed and, simultaneously, to correct the contents of the divider 20.
  • the control means further ensure the modification and activation or deactivation of the alarm circuit 14. More specifically, the contents of the memory 28 adjusted, thus recording an alarm time.
  • the comparator 26 is put into operation so that the control 30 is activated when the contents of the memory 28 correspond to that of the counter part of the divider 20.
  • the transducer 32 then emits one or more sound signals informing the carrier, as he had programmed.
  • the counting circuit 36 is provided in its memory with information relating to the capacity of the battery, the consumption of the various components of the watch, and the indication of the charge of the battery. More precisely, the memory contains a value C p corresponding to the charge of the battery and two other values, T m and T a , relating to the consumption of the watch.
  • T m refers to the consumption of the watch in normal operation, that is to say that relating to the circuit 12, and T has the operation of the alarm, that is to say the circuit 14.
  • T m and T a are, then, the times necessary for the watch in normal operation, respectively the alarm, to consume 1uAh, ie one tenth of the total charge.
  • T m could be equal to 3600 seconds, or one hour. This means that the consumption of the watch is 1 ⁇ A.
  • T may be equal to 3.6 seconds, the transducer consumption 32 being equal to 1 mA.
  • the information relating to the indication relating to the charge of the battery relates to the values of the state of the decrementer for which the needle is to be moved. These values are called jump values in the following description.
  • the decrementor When a new battery is put in place, the decrementor is initialized to its nominal value. It is decremented by 1 each time the watch in normal operation has performed its function during a time T m , or the complementary function is activated during a time T a . The state of the decrementor is then compared with the value in memory relative to the indication. Whenever the state corresponds to a jump value, the information is transmitted to the evaluation circuit 40.
  • the evaluation circuit 40 receives information from both the determining circuit 34 and the counting circuit 36. As long as the determining circuit informs the evaluation circuit that the voltage of the battery is greater than the limit value, the evaluation circuit 40 considers the information from the counting circuit 36 as relevant. It then instructs the indicator 38, and more particularly its motor, to drive the needle 42 by one step each time the content of the counting circuit 36 is equal to a threshold value.
  • the number of jump values typically between 5 and 25, is equal to the number of steps to be performed by the motor of the indicator 38 for the needle 42 to traverse the angle corresponding to the sector 44a.
  • the needle 42 enters the second sector 44b only when the determination circuit 34 sends to the evaluation circuit 26 the information relating to the voltage drop across the terminals of the battery 10. At this point regardless of the position of the needle 42, the latter is brought opposite sector 44b.
  • the device as described can, of course, be the subject of many variants. It is thus possible to provide a counting circuit with an incrementer rather than a decrementer. It is also possible to provide a linear scale for the display of available energy.
  • An equivalent solution can be applied to a watch provided with a liquid crystal display, digital type or sectors. It is also conceivable to associate the watch with a complementary indication when the battery reaches the end of its life, for example by having a second hand limp, flashing a display, etc. It is also possible to interrupt the possible use of certain energy-hungry functions, such as a chronograph, for example.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Claims (6)

  1. Uhr, die von einer Batterie (10) gespeist wird, wobei die Uhr eine Vorrichtung (16) zur Anzeige des Zustands der Batterie enthält, wobei die Vorrichtung (16) aufweist :
    - eine Schaltung (34) zur Bestimmung mindestens einer physikalischen Eigenschaft der Batterie (10), die sich verändert, wenn sie am Lebensende ist,
    - Mittel zur Anzeige des Zustands der Batterie (38, 40, 42), und
    - eine Steuerschaltung (39) der Anzeigemittel,
    wobei die Uhr dadurch gekennzeichnet ist, dass die Vorrichtung (16) außerdem aufweist
    - eine Zählschaltung (36) der von der Uhr verbrauchten Energie, und
    - eine Bewertungsschaltung (40) der Kapazität der Batterie, die mit der Bestimmungsschaltung (34) und der Zählschaltung (36) verbunden und ausgelegt ist, um die Informationen zu verarbeiten und die relevanteste Information auszuwählen, die entweder von der Bestimmungsschaltung (34) oder von der Zählschaltung (36) kommt.
  2. Uhr nach Anspruch 1, die weiter mehrere elektrische Bauteile aufweist, von denen mindestens eins (14) dazu dient, auf Wunsch des Benutzers eine komplementäre Funktion zu aktivieren, dadurch gekennzeichnet, dass die Zählschaltung (36) einen Speicher aufweist, in dem Informationen bezüglich des Verbrauchs des Bauteils gespeichert sind, und dass die Zählschaltung (36) so ausgelegt ist, dass sie immer dann der Bewertungsschaltung (40) eine Information bezüglich der verbrauchten Energie übermittelt, wenn die auf Wunsch aktivierte komplementäre Funktion beansprucht wird.
  3. Uhr nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Bewertungsschaltung (40) so ausgelegt ist, dass sie der Steuerschaltung (39) die von der Zählschaltung (36) kommende Information übermittelt, so lange die von der Bestimmungsschaltung (34) kommende Information einen normalen Betrieb der Batterie anzeigt.
  4. Uhr nach Anspruch 3, dadurch gekennzeichnet, dass die Anzeigemittel (38) aus einem Zeiger (42) bestehen, und dass die Bewertungsschaltung (40) und die Steuerschaltung (39) so ausgelegt sind, dass für einen gegebenen Energieverbrauch die Verschiebung des Zeigers um so größer ist, je geringer die verfügbare Energie ist.
  5. Uhr nach Anspruch 4, dadurch gekennzeichnet, dass die Anzeigemittel (38) außerdem eine Skala (44) aufweisen, vor der der Zeiger (42) sich verschiebt, wobei die Skala einen ersten Sektor (44a), der die verfügbare Energiemenge anzeigt, die zwischen 100% und einem Wert ungleich Null liegt, und einen zweiten Sektor (44b) aufweist, der anzeigt, dass die Batterie am Lebensende ist, und dass die Steuerschaltung (39) so ausgelegt ist, dass sie den Zeiger (42) ausschließlich vor den ersten Sektor (44a) bringt, so lange die von der Zählschaltung (36) kommende Information als die relevanteste angesehen wird.
  6. Uhr nach Anspruch 5, dadurch gekennzeichnet, dass die Steuerschaltung (39) so ausgelegt ist, dass der Zeiger (42) vor den zweiten Sektor (44b) gebracht wird, wenn die Bewertungsschaltung (40) der Steuerschaltung (39) einen Befehl der Anzeige des Lebensendes übermittelt, sobald die von der Bestimmungsschaltung (34) kommende Information zeigt, dass die Eigenschaft sich verändert.
EP01978709A 2000-10-24 2001-10-19 Uhr die eine vorrichtung zur anzeige des zustandes der batterie aufweist Expired - Lifetime EP1247145B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0013621 2000-10-24
FR0013621A FR2815729B1 (fr) 2000-10-24 2000-10-24 Dispositif d'indication de l'etat de piles, destine a equiper une montre
PCT/IB2001/001960 WO2002035296A1 (fr) 2000-10-24 2001-10-19 Dispositif d"indication de l"etat de piles, destine a equiper une montre

Publications (2)

Publication Number Publication Date
EP1247145A1 EP1247145A1 (de) 2002-10-09
EP1247145B1 true EP1247145B1 (de) 2007-05-09

Family

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EP01978709A Expired - Lifetime EP1247145B1 (de) 2000-10-24 2001-10-19 Uhr die eine vorrichtung zur anzeige des zustandes der batterie aufweist

Country Status (5)

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US (1) US6958954B2 (de)
EP (1) EP1247145B1 (de)
DE (1) DE60128328D1 (de)
FR (1) FR2815729B1 (de)
WO (1) WO2002035296A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60312536T2 (de) * 2003-12-16 2007-11-22 Asulab S.A. Elektromechanische Uhr, die mit einer Gangreserveanzeige ausgerüstet ist
EP1821163A3 (de) * 2006-02-13 2012-06-13 Ventura Watch SA Uhr mit Generator
JP4775749B1 (ja) * 2010-10-02 2011-09-21 日本テクノ株式会社 時計
CN104915161A (zh) * 2014-03-10 2015-09-16 联想(北京)有限公司 一种信息处理方法及电子设备
JP6204855B2 (ja) * 2014-03-12 2017-09-27 シチズン時計株式会社 電子機器
JP6390238B2 (ja) * 2014-03-20 2018-09-19 セイコーエプソン株式会社 電子時計、および電子時計の制御方法
JP2017106753A (ja) * 2015-12-07 2017-06-15 セイコーエプソン株式会社 電子時計および電子時計の表示制御方法
EP3845977A1 (de) * 2019-12-31 2021-07-07 The Swatch Group Research and Development Ltd Testbarkeitsverfahren eines thermoelektrischen elements

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823551A (en) * 1971-05-03 1974-07-16 Riehl Electronics Corp Solid state electronic timepiece
US4058969A (en) * 1973-12-26 1977-11-22 Citizen Watch Co., Ltd. Electric timepiece for displaying the operating condition thereof
US4290129A (en) * 1978-07-27 1981-09-15 Kabushiki Kaisha Suwa Seikosha Electronic watch with supplemental function display
JPS5861488A (ja) 1981-10-08 1983-04-12 Seikosha Co Ltd 電池寿命表示装置
JPS6188179A (ja) * 1984-10-05 1986-05-06 Seiko Instr & Electronics Ltd 電池寿命表示付電子時計
CH688462B5 (fr) 1993-04-20 1998-04-15 Isa France Sa Mouvement d'horlogerie comprenant un dispositif indicateur de fin de vie de pile.
TW300957B (de) * 1994-11-21 1997-03-21 Seiko Epson Corp
DE19732128A1 (de) * 1997-07-25 1999-03-25 Siemens Ag Unverzügliche Kapazitätsanzeige eines Sekundärelements
DE69836723T2 (de) * 1997-11-20 2007-10-11 Seiko Epson Corp. Elektronische vorrichtung und steuervorrichtung dafür

Also Published As

Publication number Publication date
FR2815729B1 (fr) 2003-03-28
EP1247145A1 (de) 2002-10-09
WO2002035296A1 (fr) 2002-05-02
DE60128328D1 (de) 2007-06-21
FR2815729A1 (fr) 2002-04-26
US6958954B2 (en) 2005-10-25
US20040041570A1 (en) 2004-03-04

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