CA2070365A1 - Procedure for local automatic control of the brightness and sound volume of a signalling device - Google Patents
Procedure for local automatic control of the brightness and sound volume of a signalling deviceInfo
- Publication number
- CA2070365A1 CA2070365A1 CA002070365A CA2070365A CA2070365A1 CA 2070365 A1 CA2070365 A1 CA 2070365A1 CA 002070365 A CA002070365 A CA 002070365A CA 2070365 A CA2070365 A CA 2070365A CA 2070365 A1 CA2070365 A1 CA 2070365A1
- Authority
- CA
- Canada
- Prior art keywords
- signalling
- brightness
- signal
- sound volume
- illuminance
- 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.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Elevator Control (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A procedure for use in an elevator signalling system is disclosed, whereby the brightness and sound volume of the signalling of the signal devices are controlled on the basis of the background illuminance and the noise in the environment of the signalling device. The intensities of the background noise and illuminance are measured before the signalling, and the values obtained are compared with predetermined reference values. Based on these comparisons, the brightness and sound volume of the signalling are adjusted to suitable values by volume and brightness control units.
A procedure for use in an elevator signalling system is disclosed, whereby the brightness and sound volume of the signalling of the signal devices are controlled on the basis of the background illuminance and the noise in the environment of the signalling device. The intensities of the background noise and illuminance are measured before the signalling, and the values obtained are compared with predetermined reference values. Based on these comparisons, the brightness and sound volume of the signalling are adjusted to suitable values by volume and brightness control units.
Description
The present invention relates to a procedure in which the brightness of signalling and the volume of sound signals are controlled on the basis of the background light and the noise in the environment.
In many buildings, there are considerable variations in the background lighting and noise, so that conventional signal devices may not be seen or heard, or else their excessive brightnesslloudness may disturb the activities in the building. For example, in hospitals and hotels, where activities go on day and night, the noise and illuminance vary greatly at different times of the day.
Depending on the situation, different levels of brightness and sound volume of the signal devices are required on different floors. In some cases, additional lamps have to be installed in poorly illuminated spaces to improve visibility.
An object of the present invention is to substantially overcome the present drawbacks, and thereby to achieve a considerable improvement in the convenience of, for example, use of an elevator. The invention also aims at a simple and low-cost solution.
According to an aspect of the present invention, there is provided a procedure for controlling the brightness and sound volume of the signalling of the signal devices of an elevator on the basis of the background illuminance and the noise in the environment, respectively, wherein the loudness of the background noise and the intensity of the background illuminance are measured before the signalling, and the values obtained are compared with predetermined reference values on the basis of which the brightness and sound volume of the signalling are adjusted to suitable values by respective volume and brightness control units.
In the procedure of the invention, the signal sound volume is controlled by measuring the background noise level before the signalling. When the background . , ,. ~ , noise level is high, the sound signal is issued with a higher volume, and similarly, when the background noise level is low, the sound signal is issued with a lower volume. The signal obtained from a noise level measuring amplifier can be used directly for the volume control of the audio signal to be issued. It is important that the result of the background noise measurement be "locked"
before signalling, to ensure that the signalling itself will not produce a change in the measured background noise level. A brightness range, or certain possible brightness values, may be defined in advance and stored in a control unit, which adjusts the brightness of a signal on the basis of the measurement result.
A volume control unit measures the intensity of the background noise before the signalling, and if the background noise level is high, the sound signal is issued with a higher volume, and similarly, when the background noise level is low, the sound signal is issued with a lower volume. The measurement result is produced by a noise level measuring unit.
The procedure of the invention has the advantages that it:
involves no significant additional costs;
can be implemented using a few additional components;
requires no separate attenuating resistors, switches of wiring for day/night signalling;
can also be implemented as a system controlled automatically according to the time of the day;
allows the use of other signalling devices, such as texts, arrows and numbers;
achieves a considerable improvement in the convenience of use of the elevator; and is a most workable system in hospitals and hotels.
. . .
: , 207~36~
In the following, the invention is described in detail by the aid of an example by referrinq to the attached drawing, which is a schematic illustration of a signalling device for implementing the procedure of the invention. The illustrated signalling device can be installed separately on each floor of a building, and operate independently according to the prevailing external circumstances on the respective floor.
The drawing shows a signal device control unit in which the brightness of signalling and the volume of sound signals are controlled on the basis of the background light and the noise in the environment. The control unit 1 controls signal devices 8, such as direction arrows and floor indicators, by means of signalling control signals 11 via a brightness control amplifier 5. The brightness of the light signals given by the signal devices 8 is controlled by the brightness control amplifier 5 by means of a light sensor 2, an illuminance measuring amplifier 4 and a control range level signal 12.
When the background illuminance increases, the output voltage of the illuminance measuring unit 4 rises, producing a larger signal at the output of the brightness control amplifier 5 and a brighter light signal level of the signal devices 8. Similarly, when the background illuminance decreases, the brightness of the light signal issued by the signal device 8 diminishes. A preset signalling control range level 12 determining the range of brightness variation of the signalling may be stored in the control unit 1.
The background noise is measured by means of the loudspeaker 3 of the sound signal device. The loudspeaker 3 reacts to background noise like a microphone, i.e. it provides a signal proportional to the noise. The signal obtained from the loudspeaker 3 is passed to a measuring amplifier 7, whose output is applied to the input of a variable-gain amplifier 6. Before the signalling, the ' control unit 1 "locks" the result of the noise level measurement by means of a locking signal 9 to ensure that the signalling itself will not produce a change in the measured background noise level. When the control unit 1 performs the signalling by means of an audio signal lo, the audio control amplifier 6 amplifies the audio signal according to the locked background noise level and a preset sound control range level 13. The signal at the output of the audio control amplifier 6 is the larger the higher is lo the locked noise level.
In an alternative embodiment, the adjustment of the brightness of the signalling and the volume of the audio signal is performed in the control unit 1, in which case the output signals of the measuring amplifiers 4 and 7 are passed to the control unit 1.
It will be apparent to a person skilled in the art that different embodiments of the invention are not restricted to the examples described above, but that they may instead be varied within the scope of the following claims.
In many buildings, there are considerable variations in the background lighting and noise, so that conventional signal devices may not be seen or heard, or else their excessive brightnesslloudness may disturb the activities in the building. For example, in hospitals and hotels, where activities go on day and night, the noise and illuminance vary greatly at different times of the day.
Depending on the situation, different levels of brightness and sound volume of the signal devices are required on different floors. In some cases, additional lamps have to be installed in poorly illuminated spaces to improve visibility.
An object of the present invention is to substantially overcome the present drawbacks, and thereby to achieve a considerable improvement in the convenience of, for example, use of an elevator. The invention also aims at a simple and low-cost solution.
According to an aspect of the present invention, there is provided a procedure for controlling the brightness and sound volume of the signalling of the signal devices of an elevator on the basis of the background illuminance and the noise in the environment, respectively, wherein the loudness of the background noise and the intensity of the background illuminance are measured before the signalling, and the values obtained are compared with predetermined reference values on the basis of which the brightness and sound volume of the signalling are adjusted to suitable values by respective volume and brightness control units.
In the procedure of the invention, the signal sound volume is controlled by measuring the background noise level before the signalling. When the background . , ,. ~ , noise level is high, the sound signal is issued with a higher volume, and similarly, when the background noise level is low, the sound signal is issued with a lower volume. The signal obtained from a noise level measuring amplifier can be used directly for the volume control of the audio signal to be issued. It is important that the result of the background noise measurement be "locked"
before signalling, to ensure that the signalling itself will not produce a change in the measured background noise level. A brightness range, or certain possible brightness values, may be defined in advance and stored in a control unit, which adjusts the brightness of a signal on the basis of the measurement result.
A volume control unit measures the intensity of the background noise before the signalling, and if the background noise level is high, the sound signal is issued with a higher volume, and similarly, when the background noise level is low, the sound signal is issued with a lower volume. The measurement result is produced by a noise level measuring unit.
The procedure of the invention has the advantages that it:
involves no significant additional costs;
can be implemented using a few additional components;
requires no separate attenuating resistors, switches of wiring for day/night signalling;
can also be implemented as a system controlled automatically according to the time of the day;
allows the use of other signalling devices, such as texts, arrows and numbers;
achieves a considerable improvement in the convenience of use of the elevator; and is a most workable system in hospitals and hotels.
. . .
: , 207~36~
In the following, the invention is described in detail by the aid of an example by referrinq to the attached drawing, which is a schematic illustration of a signalling device for implementing the procedure of the invention. The illustrated signalling device can be installed separately on each floor of a building, and operate independently according to the prevailing external circumstances on the respective floor.
The drawing shows a signal device control unit in which the brightness of signalling and the volume of sound signals are controlled on the basis of the background light and the noise in the environment. The control unit 1 controls signal devices 8, such as direction arrows and floor indicators, by means of signalling control signals 11 via a brightness control amplifier 5. The brightness of the light signals given by the signal devices 8 is controlled by the brightness control amplifier 5 by means of a light sensor 2, an illuminance measuring amplifier 4 and a control range level signal 12.
When the background illuminance increases, the output voltage of the illuminance measuring unit 4 rises, producing a larger signal at the output of the brightness control amplifier 5 and a brighter light signal level of the signal devices 8. Similarly, when the background illuminance decreases, the brightness of the light signal issued by the signal device 8 diminishes. A preset signalling control range level 12 determining the range of brightness variation of the signalling may be stored in the control unit 1.
The background noise is measured by means of the loudspeaker 3 of the sound signal device. The loudspeaker 3 reacts to background noise like a microphone, i.e. it provides a signal proportional to the noise. The signal obtained from the loudspeaker 3 is passed to a measuring amplifier 7, whose output is applied to the input of a variable-gain amplifier 6. Before the signalling, the ' control unit 1 "locks" the result of the noise level measurement by means of a locking signal 9 to ensure that the signalling itself will not produce a change in the measured background noise level. When the control unit 1 performs the signalling by means of an audio signal lo, the audio control amplifier 6 amplifies the audio signal according to the locked background noise level and a preset sound control range level 13. The signal at the output of the audio control amplifier 6 is the larger the higher is lo the locked noise level.
In an alternative embodiment, the adjustment of the brightness of the signalling and the volume of the audio signal is performed in the control unit 1, in which case the output signals of the measuring amplifiers 4 and 7 are passed to the control unit 1.
It will be apparent to a person skilled in the art that different embodiments of the invention are not restricted to the examples described above, but that they may instead be varied within the scope of the following claims.
Claims (7)
1. A procedure for controlling the brightness and sound volume of the signalling of the signal devices of an elevator on the basis of the background illuminance and the noise in the environment, respectively, wherein the loudness of the background noise and the intensity of the background illuminance are measured before the signalling, and the values obtained are compared with predetermined reference values on the basis of which the brightness and sound volume of the signalling are adjusted to suitable values by respective volume and brightness control units.
2. A procedure according to claim 1, wherein the brightness of the signalling of the signal devices is controlled by a brightness control amplifier by means of a light sensor an illuminance measuring amplifier and a control range level signal.
3. A procedure according to claim 1 or 2, wherein the background noise is measured by means of a loudspeaker of a sound signal device by taking the signal obtained from the loudspeaker to a sound level measuring amplifier whose output is passed further to a variable-gain amplifier.
4. A procedure according to claim 1 or 2, wherein the control unit contains predetermined control range settings defining the range of variation of the brightness and sound volume of the signalling.
5. A procedure according to claim 1, wherein the control unit locks the result of the noise level measurement by means of a noise level locking signal, thereby ensuring that the signalling itself will not produce a change in the measured background noise level.
6. A procedure according to claim 5, wherein the control unit performs the signalling by means of an audio signal and that the audio amplification takes place in a sound volume control amplifier according to the locked background noise level.
7. A procedure according to any one of claims 1, 2, 5 or 6, wherein the outputs of the amplifiers measuring the illuminance and noise level are passed to the control unit, which performs the adjustment of the sound volume and brightness of the signalling.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI912842A FI90646C (en) | 1991-06-13 | 1991-06-13 | Local automatic volume control of the elevator signaling device |
| FI912842 | 1991-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2070365A1 true CA2070365A1 (en) | 1992-12-14 |
Family
ID=8532697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002070365A Abandoned CA2070365A1 (en) | 1991-06-13 | 1992-06-03 | Procedure for local automatic control of the brightness and sound volume of a signalling device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0518267A2 (en) |
| JP (1) | JPH06239549A (en) |
| AU (1) | AU1718792A (en) |
| CA (1) | CA2070365A1 (en) |
| FI (1) | FI90646C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100411372B1 (en) * | 1995-04-11 | 2004-05-06 | 마츠시타 덴끼 산교 가부시키가이샤 | A video information adjustment device, a video information transmission device, and a video information reception device |
| DE19738568C1 (en) * | 1997-09-04 | 1999-03-11 | Stein Gmbh | Method and device for warning people |
| DE10361758B4 (en) * | 2003-11-20 | 2007-03-15 | Werma Signaltechnik Gmbh + Co. Kg | signaller |
| EP1533766B1 (en) * | 2003-11-20 | 2006-06-14 | WERMA Signaltechnik GmbH & Co.KG | Signalling device |
| ES2270700B1 (en) * | 2005-05-16 | 2008-03-16 | Jose Joaquin Iranzo Gonzalez | OPTICAL AND ACOUSTIC SIGNALER WITH VOICE AND SOUND MESSAGES FOR LIFTING DEVICES. |
| EP3732123A4 (en) * | 2017-12-29 | 2021-06-02 | KONE Corporation | Escalator monitoring system, method, sound data collection device and fixture therefor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4395600A (en) * | 1980-11-26 | 1983-07-26 | Lundy Rene R | Auditory subliminal message system and method |
| US4514727A (en) * | 1982-06-28 | 1985-04-30 | Trw Inc. | Automatic brightness control apparatus |
| JPS60161869A (en) * | 1984-02-02 | 1985-08-23 | 三菱電機株式会社 | Platform device for elevator |
| JPS6279187A (en) * | 1985-09-30 | 1987-04-11 | 株式会社東芝 | Platform annunciator for elevator |
| JPH0774944B2 (en) * | 1986-10-30 | 1995-08-09 | パイオニア株式会社 | Display device for in-vehicle navigation system |
| CA2091590A1 (en) * | 1990-09-11 | 1992-03-19 | Michael Joseph Kemp | Audio-visual reproduction |
-
1991
- 1991-06-13 FI FI912842A patent/FI90646C/en not_active IP Right Cessation
-
1992
- 1992-05-28 AU AU17187/92A patent/AU1718792A/en not_active Abandoned
- 1992-06-03 CA CA002070365A patent/CA2070365A1/en not_active Abandoned
- 1992-06-09 EP EP92109703A patent/EP0518267A2/en not_active Withdrawn
- 1992-06-12 JP JP4177825A patent/JPH06239549A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FI90646B (en) | 1993-11-30 |
| AU1718792A (en) | 1992-12-17 |
| EP0518267A2 (en) | 1992-12-16 |
| FI912842A0 (en) | 1991-06-13 |
| JPH06239549A (en) | 1994-08-30 |
| EP0518267A3 (en) | 1994-01-26 |
| FI912842A (en) | 1992-12-14 |
| FI90646C (en) | 1994-03-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |