FR2486236A1 - Flashing warning light triggered by sound level - compares measured sound with preset threshold to energise silence sign for given duration - Google Patents

Flashing warning light triggered by sound level - compares measured sound with preset threshold to energise silence sign for given duration Download PDF

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Publication number
FR2486236A1
FR2486236A1 FR8014882A FR8014882A FR2486236A1 FR 2486236 A1 FR2486236 A1 FR 2486236A1 FR 8014882 A FR8014882 A FR 8014882A FR 8014882 A FR8014882 A FR 8014882A FR 2486236 A1 FR2486236 A1 FR 2486236A1
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FR
France
Prior art keywords
sound level
light
sound
silence
given duration
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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.)
Granted
Application number
FR8014882A
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French (fr)
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FR2486236B1 (en
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ZEYER GILBERT
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ZEYER GILBERT
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Filing date
Publication date
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Priority to FR8014882A priority Critical patent/FR2486236A1/en
Publication of FR2486236A1 publication Critical patent/FR2486236A1/en
Application granted granted Critical
Publication of FR2486236B1 publication Critical patent/FR2486236B1/fr
Granted legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10—Amplitude; Power
    • G01H3/12—Amplitude; Power by electric means

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

The light has an electronic sound level registering device, with the light activated when the detected sound level reaches a preselected threshold value. The light has a translucent housing with the word SILENCE printed in large letters across its front face. Once it has been triggered by the threshold sound level being reached, it continues to operate for a given duration, before stopping automatically and returning to the sound registering state. Pref. the side of the housing has a line of LED's energised progressively to indicate the measured sound level according to a logarithmic scale, together with a selection control for selecting the required threshold level. The light is used for theatres etc.

Description

DESCRIPTION
La présente invention concerne un dispositif faisant office de sonomètre, qui à partir d'un certain niveau sonore préréglable déclenchera un dispositif lumineux clignottant dans un caisson translucide dont la face avant porte la mention : SILENCE, couvrant l'ensemble de sa surface. DESCRIPTION
The present invention relates to a device acting as a sound level meter, which from a certain preset sound level will trigger a flashing light device in a translucent box whose front face is marked: SILENCE, covering the whole of its surface.

Dans les dispositifs connuo de ce genre, qui sont en général des sonomètres portatifs ou de laboratoire, l'indication du niveau sonore se fait par un galvanomètre ou par une ligne de voyants gradués en décibels (dB) avec ou sans possibilité de mise en mémoire de la puissance maximum mesurée, ce qui oblige à consulter constamment l'instrument de mesure et en limite l'usage aux professionnels de l'acoustique. In known devices of this kind, which are generally portable or laboratory sound level meters, the indication of the sound level is done by a galvanometer or by a line of indicator lights graduated in decibels (dB) with or without possibility of storage. of the maximum power measured, which requires constant consultation of the measuring instrument and limits its use to acoustics professionals.

Le dispositif suivant l'invention permet d'éviter la consultation permanente de l'appareil de mesure, un sélecteur pa6-à-pas permet de pré-régler le seuil de puissance sonore à partir duquel le dispositif se mettra à clignotter et par l'intermédiaire de la plaque avant translucide apparaitra le mot SILENCE sur toute la surface de l'appareil dont la dimension doit être compatible avec la lisibilité à bonne distance, ce qui en fait un usage public. Les 10 voyants électro-luminescents sur le c8té du boîtier constituent un sonomètre très précis gradué de 5 en 5 dB. The device according to the invention makes it possible to avoid permanent consultation of the measuring device, a step-by-step selector makes it possible to preset the threshold of sound power from which the device will start to flash and by through the translucent front plate, the word SILENCE will appear on the entire surface of the device, the size of which must be compatible with legibility at a good distance, making it public use. The 10 electro-luminescent indicators on the side of the box constitute a very precise sound level meter graduated from 5 to 5 dB.

Le dispositif, objet de l'invention comporte un microphone captant les bruits ambiantes, un amplificateur basse fréquence constitué par le circuit intégré 15 et un circuit détecteur et écrêteur (voir planche I/5). On obtient une tension continue dont la valeur est en rapport avec le niveau sonore capté par le microphone. Cette tension continue est appliquée à un réseau de 10 comparateurs commandant 10 voyants lumineux LD s'allumant les uns à la suite des autres- selon une progression logarithmique de 5 en 5 dB. Un commutateur à 10 positions permet de sélectionner quel voyant doit commander le clignottement de l'alarme lumineuse (voir planche II/5).  The device which is the subject of the invention comprises a microphone picking up ambient noise, a low frequency amplifier constituted by the integrated circuit 15 and a detector and clipper circuit (see plate I / 5). A DC voltage is obtained, the value of which is related to the sound level picked up by the microphone. This DC voltage is applied to a network of 10 comparators controlling 10 LD indicator lights that light up one after the other - according to a logarithmic progression of 5 in 5 dB. A 10-position switch allows you to select which light should control the flashing of the light alarm (see Plate II / 5).

Cette con mande est transmise au monostable qui fixe la durée d'alarme à 15 secondes puis au clignottant à 2 cycles/seconde (voir planche III/5) par l'intermédiaire d'un triac et de deux lampes à incandescence de 15 watts chacune (voir planche IV/5)
Le dessin annexé et figurant en 1 et en 2 sur la planche V/5 montre à titre d'exemple un mode de real4Eatloh du du dispositif conforme à la présente invention. Tel qutil est représenté, le dispositif comporte un caisson en matière translucide avec sur la face avant la mention : SILENCE couvrant toute sa surface, la dimension du caisson doit être en rapport avec la distance à la quelle l'utilisateur pourra efficacement être en mesure de lire cette incitation.Sur le coté gauche du caisson lumineux se trouve la rampe de 10 voyants LED donnant les indications de niveau sonore, ce qui constitue un sonomètre gradué de 5 en 5 décibels (dB) dans la plage d'une utilisation normale soit de 55 à 100 dB, un commutateur å 10 positions avec bouton-fleche et cadran gradué de 55 à 100 dB permet de sélectionner la puis- sance sonore à laquelle le caisson lumineux doit se mettre â clignotter pour inciter les personnes présentes au silence.This command is transmitted to the monostable which fixes the alarm duration at 15 seconds then to the blinking at 2 cycles / second (see plate III / 5) via a triac and two incandescent lamps of 15 watts each (see plate IV / 5)
The appended drawing and appearing in 1 and 2 on the board V / 5 shows by way of example a mode of real4Eatloh of the device according to the present invention. As shown, the device includes a translucent box with the mention on the front side: SILENCE covering its entire surface, the size of the box must be related to the distance at which the user can effectively be able to Read this prompt. On the left side of the light box is the ramp of 10 LED indicators giving the sound level indications, which constitutes a sound level meter graduated from 5 to 5 decibels (dB) in the range of normal use or 55 to 100 dB, a 10-position switch with arrow button and dial graduated from 55 to 100 dB allows you to select the sound power at which the light box should start to flash to encourage those present to remain silent.

L'intérieur du caisson contient tout le dispositif électronique ainsi que le dispositif d'alimentation par l'intermédiaire d'un fil relié à une prise de courant.The interior of the box contains the entire electronic device as well as the power supply device via a wire connected to a power outlet.

Le dispositif, objet de l'invention peut être utilisé dans tous les cas où l'on ne doit pas dépasser un certain niveau sonore, par exemple : hôpitaux, cliniques, salles d'attente, entrée d'immeuble collectif, lieux publics etc.... Des applications particulièrement intéressantes peuvent être la lutte contre le bruit du aux chaines HiFi ou autres appareils de reproduction sonore que le particulier pourra imposer par exemple à ses enfants de manière à ce qu'ils ne dépassent pas un certain seuil de volume sonore qui pourrait géner les voisins.  The device which is the subject of the invention can be used in all cases where a certain noise level must not be exceeded, for example: hospitals, clinics, waiting rooms, entrance to a collective building, public places, etc. ... Particularly interesting applications can be the fight against noise due to HiFi channels or other sound reproduction devices that individuals can impose for example on their children so that they do not exceed a certain threshold of volume. which could annoy the neighbors.

Ce dispositif pourra également, après homologation par le
Ministère du Travail, être utilisé dans les ateliers où le niveau sonore ne doit pas dépasser un seuil déterminé, indiqué par le clignottement du dispositif qui incitera au silence.This device may also, after approval by the
Ministry of Labor, be used in workshops where the sound level must not exceed a determined threshold, indicated by the flashing of the device which will encourage silence.

Les différents éléments figurant sur les schémas des planches I à V sont les suivants
C 1 = condensateur électrochimique au tantale valeur 2,2 MF 25 volts
C 2 = " " " " " 2,2 MF 25 volts
C 3 = " " " " " 2,2 MF 25 volts
C 4 = " " " " " 2,2 MF 25 volts
C 5 = " " " " " 2,2 MF 25 volts
C 6 = " " valeur 22 NF i6 volts
C 7 = " polyester 0,1 MF 250 volts
C 8 = " électrochimique valeur 1000 MF 25 volts
C 9 = " " " 1000 MF 25 volts
C 10 = " " " 100 MF 16 volts
C 11 = " " " 100 MF 16 volts
C 12 = " papier 0,047 MF 1500 volts
C 13 = " électrochimique valeur 100 MF 16 volts
C 14 = n " n 100 M F 16 volts
R 1 = résistance à couche de carbone valeur 560 ohms watt
R 2 = " " " " " " 440 " "
R 3 = " " " " " " 800 " "
R 4 = " " " " " " 1400 " "
R 5 = " " " " " " 2400 " "
R 6 = " " " " " " 4400 " "
R 7 = " " " " " " 7700 " "
R 8 = " " " " " " 13,9 Kohms "
R 9 = " " " " " " 24,6 " " R 10 = il " " if if n 43,8 " " "
R 11 = if il if if if " 470 ohms Y2 " à R 20
R 21 = " " " " " " 10 Kohms "
R 22 = " " " " " " 10 " "
R 23 = " " " " " " 470 " "
R 24 = " " " " " " 33 " "
R 25 = if " " if fi fi if 100 " "
R 26 = " " " " " " 10 " "
R 27 = " " if if if " " " 470 ohms "
R 28 = " " " " " " 390 " "
R 29 = " " " " " " 100 Kohms "
R 30 = " " " " " " 2,7 Mohms "
R 31 = " " " " " " 1 " "
R 32 = if fi if fi n fi 2,7 if fi
R 33 = Il " " if fi if 47 ohms fi "
L 1 = lampe à incandescence 15 watts 220 volts
L 2 = " if if if " if
FUS = fusible 0,5 ampère
MC = microphone electrodynamique impédance 200 ohms
SECT = secteur alternatif 220 volts 50 c/s 1 = circuit intégré de CI 1 type 747 2 = " " " " " " " 3 = " " " CI 2 " " 4 = " " " " " " " 5 = " " " CI 3 " " 6 = " " " " " " " 7 = " " " CI 4 " " 8 = " " " " " " " 9 = " " " CI 5 " " 10 = " " " " " " " 11 = 1/4 " " " CI 6 " C.MOS 4001 B - NOR 12 = 1/4 " " " " " " " " "
13 = 1/4 " " " " " " " " "
14 = 1/4 " " " " " " " " "
15 = circuit intégré CI 7 type 741
AJT = potentiomètre linéaire ajustable valeur 4,7 mohms
D 1 = redresseurs type 1N4001
D 2 = diode type 1N4148
D 3 = " " "
D4 à D7 = redresseurs type 1N4001
LD1 à LD10 = diodes électroluminescentes type LED 1,5 volts
TF = transformateur 220 volts/2x15 volts 6 VA
TR = transistor NPN type 2N1711
TC = triac 4 ampères
COM = commutateur rotatif à 10 positions
POT = potentiomètre linéaire valeur 100 Kohms
RG+ = régulateur de tension 12 volts positif type 7812
RG- = n n fi " négatif 8' 7912 V+ . point d'alimentation 12 volte pesitive régulée
V- = " " 12 " négative "
Vo = n milieu de l'alimentation et masse du montage
A = point de la figure 1 à relier au point A' de la fig 2
B = " n 2 if if B' " " 3
C = " " 3 " " C' " " 4 dB 55 à dB 100 = échelle logarithmique de graduation The various elements appearing on the diagrams of plates I to V are the following
C 1 = electrochemical capacitor with tantalum value 2.2 MF 25 volts
C 2 = """""2.2 MF 25 volts
C 3 = """""2.2 MF 25 volts
C 4 = """""2.2 MF 25 volts
C 5 = """""2.2 MF 25 volts
C 6 = "" value 22 NF i6 volts
C 7 = "polyester 0.1 MF 250 volts
C 8 = "electrochemical value 1000 MF 25 volts
C 9 = """1000 MF 25 volts
C 10 = """100 MF 16 volts
C 11 = """100 MF 16 volts
C 12 = "paper 0.047 MF 1500 volts
C 13 = "electrochemical value 100 MF 16 volts
C 14 = n "n 100 MF 16 volts
R 1 = resistance to carbon layer value 560 ohms watt
R 2 = """""" 440 ""
R 3 = """""" 800 ""
R 4 = """""" 1400 ""
R 5 = """""" 2400 ""
R 6 = """""" 4400 ""
R 7 = """""" 7700 ""
R 8 = """""" 13.9 Kohms "
R 9 = """""" 24.6 "" R 10 = il "" if if n 43.8 """
R 11 = if il if if if "470 ohms Y2" at R 20
R 21 = """""" 10 Kohms "
R 22 = """""" 10 ""
R 23 = """""" 470 ""
R 24 = """""" 33 ""
R 25 = if "" if fi fi if 100 ""
R 26 = """""" 10 ""
R 27 = "" if if if """470ohms"
R 28 = """""" 390 ""
R 29 = """""" 100 Kohms "
R 30 = """""" 2.7 Mohms "
R 31 = """""" 1 ""
R 32 = if fi if fi n fi 2,7 if fi
R 33 = Il "" if fi if 47 ohms fi "
L 1 = incandescent lamp 15 watts 220 volts
L 2 = "if if if" if
FUS = 0.5 amp fuse
MC = 200 ohm impedance electrodynamic microphone
SECT = alternating sector 220 volts 50 c / s 1 = integrated circuit of CI 1 type 747 2 = """""""3=""" CI 2 "" 4 = """""""5="""CI3""6=""""""" 7 = """CI4""8=""""""" 9 = """CI5""10=""""""" 11 = 1/4 """CI6" C.MOS 4001 B - NOR 12 = 1/4 """""""""
13 = 1/4 """""""""
14 = 1/4 """""""""
15 = integrated circuit CI 7 type 741
AJT = adjustable linear potentiometer value 4,7 mohms
D 1 = rectifiers type 1N4001
D 2 = diode type 1N4148
D 3 = """
D4 to D7 = rectifiers type 1N4001
LD1 to LD10 = 1.5 volt LED type light-emitting diodes
TF = transformer 220 volts / 2x15 volts 6 VA
TR = NPN transistor type 2N1711
TC = 4 amp triac
COM = 10-position rotary switch
POT = linear potentiometer value 100 Kohms
RG + = positive voltage regulator 12 volts type 7812
RG- = nn fi "negative 8 '7912 V +. 12 volt regulated power supply point
V- = "" 12 "negative"
Vo = n middle of the supply and assembly mass
A = point in figure 1 to be connected to point A 'in fig 2
B = "n 2 if if B '""3
C = "" 3 "" C '"" 4 dB 55 to dB 100 = logarithmic scale scale

Claims (1)

SILENCE sur toute la surface de sa face avant et qui s'allume par clignottement lorsque le niveau sonore a dépassé un scuil pré-sélectionné, le dispositif s'arrête automatiquement au bout de 15 secondes et se remet en état de veille pour etre en mesure de détecter une nouvelle élévation anormale du niveau sonore 2.Dispositif selon la revendication 1, caractérisé par le fait qu'un sonomètre à lecture directe par 10 voyants lumineux formant une échelle à progression linéaire de 5 en 5 décibels (dB), pour une variation l@garithmique du niveau sonore, est apparent sur le coté du boîtier ce qui donne au dispositif les possibilités d'un appareil de mesure du niveau sonore. REVENDICATIONSSILENCE over the entire surface of its front face and which lights up by flashing when the sound level has exceeded a pre-selected scuil, the device stops automatically after 15 seconds and returns to standby to be able to to detect a new abnormal rise in the sound level 2.A device according to claim 1, characterized in that a direct reading sound level meter by 10 indicator lights forming a linear progression scale of 5 in 5 decibels (dB), for a variation l @ garithmic sound level, is apparent on the side of the housing which gives the device the possibilities of a sound level meter. CLAIMS 1. Dispositif comportant un sonomètre électronique incorporé destiné à mesurer le niveau sonore, à comparer ce niveau sonore à une valeur à ne pas dépasser et à déclencher l'alarme lumineuse clignottante si ce niveau a été depassé, caractérisé par le fait que le dispositif d'alarme lumineuse se présente sous la forme d'un caisson transluside portant la mention :1. Device comprising a built-in electronic sound level meter intended to measure the sound level, to compare this sound level with a value not to be exceeded and to trigger the flashing light alarm if this level has been exceeded, characterized in that the device d the light alarm is in the form of a translucent box marked: SILENCE. SILENCE. 3. Dispositif selon la revendication 1, caractérisé par le fait qu'un commutateur à 10 positions dont chaque position correspond à l'éclairage deun voyant de contrôle déterminé du dispositif de visualisation du sonomètre incorporé, permet de sélectionner quel voyant, c'est à dire quel niveau sonore doit déclen- cher l'alarme lumineuse du caissontranslucide portant la mention 3. Device according to claim 1, characterized in that a 10-position switch, each position of which corresponds to the lighting of a determined indicator light of the display device of the incorporated sound level meter, makes it possible to select which light is to tell which sound level should trigger the light alarm on the transparent box marked
FR8014882A 1980-07-02 1980-07-02 Flashing warning light triggered by sound level - compares measured sound with preset threshold to energise silence sign for given duration Granted FR2486236A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8014882A FR2486236A1 (en) 1980-07-02 1980-07-02 Flashing warning light triggered by sound level - compares measured sound with preset threshold to energise silence sign for given duration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8014882A FR2486236A1 (en) 1980-07-02 1980-07-02 Flashing warning light triggered by sound level - compares measured sound with preset threshold to energise silence sign for given duration

Publications (2)

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FR2486236A1 true FR2486236A1 (en) 1982-01-08
FR2486236B1 FR2486236B1 (en) 1984-09-28

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Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509189A (en) * 1983-06-08 1985-04-02 Simpson Buddy B Sound level indicating devices
GB2372128A (en) * 2000-10-30 2002-08-14 Gardiner Technology Ltd Alarm housing for an alarm having a visual warning device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304368A (en) * 1963-05-10 1967-02-14 Joseph L Ford Noise level indicator for school bus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304368A (en) * 1963-05-10 1967-02-14 Joseph L Ford Noise level indicator for school bus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/79 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509189A (en) * 1983-06-08 1985-04-02 Simpson Buddy B Sound level indicating devices
GB2372128A (en) * 2000-10-30 2002-08-14 Gardiner Technology Ltd Alarm housing for an alarm having a visual warning device
GB2372128B (en) * 2000-10-30 2004-07-28 Gardiner Technology Ltd Housing for alarm device

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Publication number Publication date
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