WO2007066195A2 - Dispositif pour commuter et commander un equipement electrique, comprenant un capteur de proximite et procedes se rapportant a un tel dispositif - Google Patents

Dispositif pour commuter et commander un equipement electrique, comprenant un capteur de proximite et procedes se rapportant a un tel dispositif Download PDF

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Publication number
WO2007066195A2
WO2007066195A2 PCT/IB2006/003466 IB2006003466W WO2007066195A2 WO 2007066195 A2 WO2007066195 A2 WO 2007066195A2 IB 2006003466 W IB2006003466 W IB 2006003466W WO 2007066195 A2 WO2007066195 A2 WO 2007066195A2
Authority
WO
WIPO (PCT)
Prior art keywords
proximity sensor
input terminal
output
metal
oxide
Prior art date
Application number
PCT/IB2006/003466
Other languages
English (en)
Other versions
WO2007066195A3 (fr
Inventor
Ciro Scaramucci
Fabrizio Bernini
Original Assignee
Ciro Scaramucci
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 Ciro Scaramucci filed Critical Ciro Scaramucci
Publication of WO2007066195A2 publication Critical patent/WO2007066195A2/fr
Publication of WO2007066195A3 publication Critical patent/WO2007066195A3/fr

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J9/00—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/9607—Capacitive touch switches
    • H03K2217/96071—Capacitive touch switches characterised by the detection principle
    • H03K2217/960715—Rc-timing; e.g. measurement of variation of charge time or discharge time of the sensor

Definitions

  • the present invention relates to the field of controlling devices equipped with remote control and, more particularly, to the field of devices fitted with proximity sensors, for controlling electrical equipment.
  • controlling devices equipped with remote control There are devices designed to control certain apparatus from a distance, such as television remote controls, as well as devices designed to avoid the use of manual switches or regulators which may be difficult to reach or use, may be subject to wear and tear, or may not be aesthetically suited to the environment in which they operate and so forth.
  • Proximity sensors generally of the capacitive kind, are such as to sense the approach of a body, the user's hand for instance, and consequently trigger an electronic switch or control, a dimmer etc.
  • Today controls of this kind are widely used in the home, for example, replacing switches and control knobs, and are nowadays considered objects of design in their own right, in that they can guarantee perfect integrability within different environments and objects.
  • the said proximity sensors and the controls or switches that contain them have, therefore, a constant need for miniaturization, optimisation, cost reduction and general improvement, due to their ever-growing use.
  • the present invention concerns a proximity sensor and a device for switching on, switching off and controlling electrical devices, characterised by a topology capable of considerably reducing the number of electronic components in use, and therefore capable of greatly reducing their dimensions and cost, thus increasing their scope of application and paving the way. for their introduction into devices, applications and markets where they were hitherto difficult to find.
  • the subject matter of this invention is a controller device for electrical equipment, comprising of at least one proximity sensor which has Metal-Oxide-Semiconductor junction devices, and related methods for controlling the said electrical devices as described in the claims which form an integral part of the present description.
  • FIG. 1 Schematic block diagram of a first preferred embodiment of the device according to the present invention.
  • FIG. 2 Schematic block diagram of a second preferred embodiment of the device according to the present invention.
  • FIG. 3 Simplified circuit diagram of a preferred embodiment of the input stage of the device according to the present invention.
  • FIG. 4 Flow chart of an example of the method carried out by the processing unit contained in the second preferred embodiment of the device according to the present invention.
  • the subject matter of this invention concerns a controller device for electrical equipment, comprising of a proximity sensor based on Metal-Oxide- Semiconductor junction devices such as MOSFET, JFET, MESFET and all of their derivations.
  • a proximity sensor based on Metal-Oxide- Semiconductor junction devices such as MOSFET, JFET, MESFET and all of their derivations.
  • the said proximity sensor makes use of parasite behaviour common to all devices based on a Metal-Oxide-Semiconductor junction, actually allowing for interaction with the electrical behaviour of the said devices by simply disturbing the space in their immediate vicinity.
  • FIG. 1 we see a first preferred embodiment of the subject matter of the present invention:
  • the input stage is made up of a proximity sensor 11 comprising of electronic components equipped with a Metal-Oxide-Semiconductor junction for example
  • the said stage may, for example, comprise of a single gate of an inverting Schmitt trigger but, more generally, all devices are suitable, comprising of one or more components which are made in Metal-Oxide-Semiconductor technology and capable of generating an electrical oscillation, which is able to operate output commutation in response to changes in an input control signal.
  • a floating terminal 10 is always present, which in the case in hand acts as a sort of antenna, directly connected to the gate of a Metal-Oxide-Semiconductor device.
  • the said floating terminal 10 may be constituted by a wire or a metal plate, by an LC tuned circuit or by an active electronic device, for the transfer and amplification of a capacity or of a signal introduced by the disturbing body.
  • a simple antenna constituted by a wire or a plate these may have various shapes and sizes in accordance with the desired result.
  • a wire or a metal plate may be used with dimensions depending on the sensitivity required by the system, that is on the desired ratio between the distance of the disturbing body and the corresponding change of the oscillation frequency of the circuit.
  • the said proximity sensor 11 produces an output voltage waveform having a frequency that changes in proportion to the approach of a disturbing body to the said floating terminal 10 and this frequency change is the parameter on which the adjustment carried out by the device according to the present invention is based.
  • the device according to the present invention can function even as a contact switch insofar as the drastic drop of the oscillation frequency emitted by the proximity sensor 11 when the said disturbing body comes into contact with the said floating terminal, may easily be perceived as an On/Off signal for the user equipment.
  • a non-limiting embodiment example of the said proximity sensor 11 is represented in Fig. 3. In this case a logical inverter component is used, also indicated as "NOT", for example, the component commercially known by the number CD40106.
  • This component made in MOS (Metal - Oxide - Semiconductor) technology, is configured as a "Schmitt trigger" oscillator, connecting the input terminal to the output terminal by means of an impedance, and connecting a capacitor between the said input terminal and earth. Furthermore, the same input terminal is connected to the said floating terminal 10 so that, as illustrated in Fig. 3, the approach of a disturbing body 30 to the said floating terminal 10 causes a change in the oscillation frequency present in the output terminal of the logical inverter, a change that is in proportion to the distance of the said disturbing body 30 from the said floating terminal 10.
  • any other component made with Metal-Oxide-Semiconductor technology may be used instead of that marked by the number CD40106 seen in Fig. 3, which is capable of generating an electric oscillation, that is, able to operate output commutation in response to changes in an input control signal.
  • the output oscillation from the said proximity sensor 11 is sent to a divider 12 whose function is to modify the duty cycle and the oscillation frequency of the electrical signal generated by the proximity sensor 11 so as to render it compatible with the type of signal processing carried out by subsequent stages.
  • Module 13 comprises of a frequency/voltage converter which translates the electrical oscillation and its frequency changes into a proportionate voltage level, easier to process using analogue electronic circuits.
  • the said voltage level is subsequently sent to an appropriate actuator 14 capable of transforming the said control signal into another electrical signal to control the user device 15 which, depending on requirements, may be any. electrical device, such as a motor, a dimmer, an audio amplifier, a data processing apparatus etc. etc.
  • the said proximity sensor 11 comprising of components equipped with Metal-Oxide-Semiconductor junction, the said floating terminal 10 directly connected to the gate of at least one of the Metal-Oxide-Semiconductor devices comprised in the said proximity sensor 11 , the said divider 12, the said actuator 14 and the said user device 15.
  • the output signal from the divider 12 is transferred to a digital processing unit 20, positioned downstream of the said divider 12 and upstream of the said actuator 14 and comprising of a counter 21 , a memory 22, a digital comparator 23, a CPU 24, and an output module 25.
  • the said processing unit may, for example, be constituted by a microprocessor.
  • the CPU 24 houses an appropriate firmware which ensures that the said processing unit 20 operates as described below:
  • the said counter 21 determines, at set time intervals, the number of pulses emitted by the sensor, obtaining a datum which is stored in the memory 22 and made available for subsequent modifications and updates carried out by the CPU 24 based on the instructions contained in the said firmware.
  • the output module 25 may be embodied in several ways, based on the following units. It may, for example, comprise of a PWM signal generator through which it is possible to modulate the operation of all the user devices of a switching kind. Alternatively the said output module 25 may comprise of a simple Digital-Analogue converter which produces an analogue control signal.
  • the signal is sent to a appropriate actuator 14 capable of transforming the said control signal into another electrical signal to control the user device 15 which, depending on requirements, may be any electrical device. More particularly, a non-limiting example of the said electrical devices may include the following:
  • a motor for controlling the rotation speed of the blades of a fan, or traction motors
  • a road signalling apparatus (possibly located on the road surface) to mark off shoulders of the carriageway and to collect and process data relating to traffic etc. etc.
  • the resulting sequence of operations may comprise of the following steps: a) the said counter 21 carries out 50 a count of the pulses coming from divider 12 b) the digital comparator 23 carries out 51 a comparison between the previous count value and the count value just carried out in the previous step
  • the CPU 24 carries out a second control 53 to establish if the adjustment by the user has come to an end.
  • the output module 25 generates 55 a control signal relating to the new adjustment, and to its dispatch to the actuator 14 which carries out the said adjustment by appropriately controlling the user device 15.

Landscapes

  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Electronic Switches (AREA)

Abstract

L'invention concerne un dispositif permettant de commuter et de commander un équipement électrique, comportant au moins un capteur de proximité comprenant des composants à jonction Métal-Oxyde-Semiconducteur.
PCT/IB2006/003466 2005-12-05 2006-12-05 Dispositif pour commuter et commander un equipement electrique, comprenant un capteur de proximite et procedes se rapportant a un tel dispositif WO2007066195A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI20050250 ITFI20050250A1 (it) 2005-12-05 2005-12-05 Dispositivo per l'attivazione, la disattivazione e la regolazione di dispositivi elettrici comprendente un sensore di prossimita' e metodo ad esso collegato
ITFI2005A000250 2005-12-05

Publications (2)

Publication Number Publication Date
WO2007066195A2 true WO2007066195A2 (fr) 2007-06-14
WO2007066195A3 WO2007066195A3 (fr) 2007-10-04

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PCT/IB2006/003466 WO2007066195A2 (fr) 2005-12-05 2006-12-05 Dispositif pour commuter et commander un equipement electrique, comprenant un capteur de proximite et procedes se rapportant a un tel dispositif

Country Status (2)

Country Link
IT (1) ITFI20050250A1 (fr)
WO (1) WO2007066195A2 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007033886A1 (de) * 2007-07-20 2009-01-22 Siemens Ag Ausgabeeinheit zum Ausgeben von unterschiedlichen Signalen; elektrisches Bauelement zur Steuerung eines elektrischen Gerätes sowie Verfahren zum Ausgeben von unterschiedlichen Signalen durch eine Ausgabeeinheit
US7613552B2 (en) * 2007-05-17 2009-11-03 Fabrizio Bernini Lawn-mower with sensor
DE102008024398A1 (de) * 2008-05-20 2009-11-26 Ifm Electronic Gmbh Näherungsschlter und Verfahren zum Betreiben eines Näherungsschalters
US7668631B2 (en) * 2008-01-23 2010-02-23 Fabrizio Bernini Autonomous lawn mower with recharge base
WO2011039246A1 (fr) * 2009-10-01 2011-04-07 Arcelik Anonim Sirketi Dispositif de réception de diffusion
US8285435B2 (en) 2009-06-30 2012-10-09 Fabrizio Bernini Lawn mower
JP2019095356A (ja) * 2017-11-24 2019-06-20 島根県 電極拡張型静電容量式センサ
US10444757B2 (en) 2016-02-03 2019-10-15 Positec Power Tools (Suzhou) Co., Ltd. Self-moving device and control method therefor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668877A (en) * 1984-06-13 1987-05-26 Kunen Scott M Touch controlled switch for a lamp or the like
US4937702A (en) * 1987-05-06 1990-06-26 Minoru Fukumitsu Light intensity controller using a proximity sensor
US4939382A (en) * 1989-04-20 1990-07-03 Victor Gruodis Touch responsive power control system
WO1990014604A1 (fr) * 1989-05-17 1990-11-29 Moonstone Designs Limited Detecteur de proximite
US20030222508A1 (en) * 1998-10-06 2003-12-04 Leonard Maxwell Switch
WO2004023526A2 (fr) * 2002-09-06 2004-03-18 Invisa, Inc. Appareil et procede de traitement de signaux de capteur a condensateur par des techniques de mesure de decalage de frequence numerique avec reference flottante

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668877A (en) * 1984-06-13 1987-05-26 Kunen Scott M Touch controlled switch for a lamp or the like
US4937702A (en) * 1987-05-06 1990-06-26 Minoru Fukumitsu Light intensity controller using a proximity sensor
US4939382A (en) * 1989-04-20 1990-07-03 Victor Gruodis Touch responsive power control system
WO1990014604A1 (fr) * 1989-05-17 1990-11-29 Moonstone Designs Limited Detecteur de proximite
US20030222508A1 (en) * 1998-10-06 2003-12-04 Leonard Maxwell Switch
WO2004023526A2 (fr) * 2002-09-06 2004-03-18 Invisa, Inc. Appareil et procede de traitement de signaux de capteur a condensateur par des techniques de mesure de decalage de frequence numerique avec reference flottante

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7613552B2 (en) * 2007-05-17 2009-11-03 Fabrizio Bernini Lawn-mower with sensor
DE102007033886A1 (de) * 2007-07-20 2009-01-22 Siemens Ag Ausgabeeinheit zum Ausgeben von unterschiedlichen Signalen; elektrisches Bauelement zur Steuerung eines elektrischen Gerätes sowie Verfahren zum Ausgeben von unterschiedlichen Signalen durch eine Ausgabeeinheit
DE102007033886B4 (de) * 2007-07-20 2009-04-30 Siemens Ag Ausgabeeinheit zum Ausgeben von unterschiedlichen Signalen; elektrisches Bauelement zur Steuerung eines elektrischen Gerätes sowie Verfahren zum Ausgeben von unterschiedlichen Signalen durch eine Ausgabeeinheit
US7668631B2 (en) * 2008-01-23 2010-02-23 Fabrizio Bernini Autonomous lawn mower with recharge base
DE102008024398A1 (de) * 2008-05-20 2009-11-26 Ifm Electronic Gmbh Näherungsschlter und Verfahren zum Betreiben eines Näherungsschalters
DE102008024398B4 (de) * 2008-05-20 2015-08-20 Ifm Electronic Gmbh Näherungsschalter und Verfahren zum Betreiben eines Näherungsschalters
US8285435B2 (en) 2009-06-30 2012-10-09 Fabrizio Bernini Lawn mower
WO2011039246A1 (fr) * 2009-10-01 2011-04-07 Arcelik Anonim Sirketi Dispositif de réception de diffusion
US10444757B2 (en) 2016-02-03 2019-10-15 Positec Power Tools (Suzhou) Co., Ltd. Self-moving device and control method therefor
JP2019095356A (ja) * 2017-11-24 2019-06-20 島根県 電極拡張型静電容量式センサ

Also Published As

Publication number Publication date
WO2007066195A3 (fr) 2007-10-04
ITFI20050250A1 (it) 2007-06-06

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