• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Multifunction acoustic warning. It allows its operation as a conventional acoustic warning, and as an alarm system, generating different sounds in different conditions, events or situations, having a control system (10) connectable through some power terminals (t1-t4) to a switchboard, and comprising a pulse generator (11); a first control circuit (12) for adjusting the frequency and duty cycle of the pulse generator (11) which, by means of an electronic switching device (20), energizes the coil (6); a second control circuit (13) for analyzing a pwm signal from a third power terminal (t3), wherein said pwm signal includes the frequency of the sound to be generated and the duration time of the pwm signal; and wherein the electronic switching device (20) is connected to both the pulse generator (11) and the second control circuit (13), for the connection/disconnection of the coil (6). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2586397A1
    申请号:ES201630488
    申请日:2016-04-18
    公开日:2016-10-14
    发明作者:Enrique Quintiliano MINGUET GARCIA；Guillermo VACAS ALMAGRO；Rafael NICOLAS MARISCAL
    申请人:Clarton Horn S A U；Clarton Horn Sau；
    IPC主号:
    专利说明:

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    DESCRIPTION
    Multifunction Acoustic Warning OBJECT OF THE INVENTION
    The present invention belongs to the field of audible signaling systems, and more specifically to acoustic alarms that employ an electric and / or electromagnetic transmission.
    The object of the present invention is a multifunctional acoustic warning, which in addition to allowing its operation as a conventional acoustic warning, such as the horn or horn of a vehicle, also allows working as an alarm system, generating different sounds under different conditions or situations, all this with greater flexibility and greater ease of integration and implementation with respect to current systems, also expanding its field of application, without limitations of each manufacturer.
    BACKGROUND OF THE INVENTION
    At present, different acoustic warning models are known in the state of the art, such as those included in automotive vehicles for the emission of an audible signal. These acoustic warnings are also applicable in other fields, where it is necessary to pay special attention or precaution of the user in situations of danger or emergency; or simply to invite listeners to act in a certain way.
    A conventional acoustic alarm (1), as shown in Figure 1, is based on the generation of a sound pressure from the displacement of a membrane (2) that has a metallic nucleus better known as the mobile nucleus ( 3). This displacement causes an air flow through a duct or tube (4), which amplifies it generating a sound pressure. In the case of an acoustic warning (1) disk, the sound is generated by moving this mechanical membrane (2) and impacting the mobile core (3) with the fixed core (5) of the acoustic warning (1).
    To cause this displacement of the membrane (2), the acoustic warning (1) presents
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    a coil (6), of fixed position, through which an electric current is circulated, which produces a magnetic field. This magnetic field displaces the mobile core (3) in the direction of the axial axis shown in Figure 1. In this way the relative position of the mobile core (3) with respect to the coil (6) varies, being already known in the present state of the art that the maximum displacement of the mobile core (3) with respect to the coil (6) coincides with the resonant frequency of the acoustic warning (1), optimum point of operation. In addition, it is known that the acoustic alarms (1) with electronic control circuit, employ a pulse generator to adjust the movement of the mobile core (3), and therefore, to adjust the frequency and sound pressure of the sound generated by the acoustic warning (1).
    More particularly, the "multifunction" acoustic alarms are also known, which incorporate additional functions, capable of working as much as a conventional acoustic warning for automotive vehicles (the classic horn or car whistle), as well as capable of working as a system. of warning or alarm that allows to generate sounds under different conditions (such as the closing and / or opening of doors, the proximity to other vehicles during driving or during parking maneuvers, the closing of the vehicle with people inside it, etc. ).
    The technical problem that arises here is that the current multifunctional acoustic alarms are based on “closed” systems, that is, they only generate preprogrammed sounds. This is due to the fact that the current multifunction alarms are limited to fixed frequencies previously programmed in their control circuits, corresponding to different codes, which have a certain alarm signal associated with them. In this way, the vehicle control unit must send previously defined frequency signals, so that the multifunction warning generates a sound corresponding to each specific code.
    This limitation assumes that the current acoustic alarms do not allow varying the tone or sound pressure of the alarm signals, that is, there is no possibility that the user can introduce new sounds, unless after a complete update of the entire programming of the acoustic warning, with the inconvenience and costs that this entails, both in
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    time as economical, since the user has to take his vehicle to a workshop or specialized center for reprogramming. On the other hand, the current acoustic warnings, in addition to having an important complexity of implementation, imply a reduction of their operational flexibility, since they require certain values of their internal parameters (frequencies, times, temperatures, storage capacity, etc.) , limiting all that its scope of application.
    DESCRIPTION OF THE INVENTION
    By means of the present invention, the aforementioned drawbacks are solved by providing a multifunctional acoustic warning, which in addition to allowing its operation as a conventional acoustic warning, such as the horn of a vehicle, also allows it to function as an alarm system, generating different sounds under different conditions, events or situations that take place, such as the closing / opening of doors, the proximity of other vehicles, closing of the vehicle with people inside it, etc., all with greater flexibility and greater ease of integration and implementation that current systems, also making it suitable for a greater field of application.
    The multifunction acoustic warning device of the invention has at least one coil and a control system connectable through power supply terminals to a switchboard, where said control system comprises a pulse generator. In addition, the control system further comprises: a first control circuit, connected to a first terminal, to adjust the frequency and duty cycle of the pulse generator that energizes the coil in a normal operating mode; a second control circuit for analyzing a PWM pulse width modulated signal from a third power terminal, where said PWM signal includes the frequency of the sound to be generated and the duration time of the PWM signal thereof in an operating mode variable; and an electronic switching device connected to both the first and the second control circuit, for the connection / disconnection of the coil.
    Preferably, the first power terminal has a first A / D converter, in turn connected to the first control circuit mentioned above.
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    It is also provided that the alarm may additionally comprise a voltage protection and detection device connected between the first power terminal and a second power terminal, which preferably has a second A / D converter connected in turn to the second circuit of control.
    Therefore, the invention is to integrate two coil control circuits with independent power terminals into the same electronic connector. Thus, a first control circuit is responsible for managing the current flowing through the first terminal, and configuring the pulse generator to, through a switching device, energize the coil at the frequency and duty cycle established for that timer. On the other hand, a second control circuit is configured to analyze the information it receives through the third terminal, and where appropriate, manage the current flowing through the second terminal. The information received by the third terminal contains the frequency at which, through the switching device, the coil has to be energized, as well as the duration time of the PWM signal.
    Thus, the multifunction warning of the invention allows combining the conventional acoustic warning function, with a novel function to generate acoustic sounds based on different characteristics (frequency, times, duty cycle, etc.) of a control signal, in particular a signal modulated by PWM pulse width. All this through two independent control circuits, connected to a switchboard through different power terminals. This control signal passes through analog and / or digital filters, so that the multifunction warning generates acoustic signals at a frequency and sound pressure related to the control signal. Unlike the current systems, the alarm described here does not use preprogrammed codes, and allows a continuous detection of the input variables to constantly update the output.
    Next, some of the main advantages and improvements obtained by means of the multifunctional acoustic warning device of the invention are listed:
    - Ability to generate a greater number of different sounds, with the possibility of varying both the tone and the sound pressure of each signal during the same activation, so
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    as the ability to emit sounds that are the result of the combination of multiple tones.
    - Automatic detection of new frames for the generation of new sounds, without requiring a reprogramming.
    - Greater ease of integration and implementation in the control circuits.
    - Greater flexibility and field of application, since the acoustic warning described here is independent of the type of the warning coil, its mechanical characteristics or the parameters of each manufacturer.
    DESCRIPTION OF THE DRAWINGS
    To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of the same, a set of drawings is accompanied as an integral part of said description. where, with an illustrative and non-limiting nature, the following has been represented:
    Figure 1.- Shows a sectional view of the internal mechanical components of a conventional acoustic alarm.
    Figure 2.- Shows a side view of the multifunctional acoustic warning device of the invention, according to a first preferred embodiment, provided with four connector terminals.
    Figure 3.- Shows a block diagram of the multifunction acoustic warning control system, according to the first preferred embodiment of Figure 2.
    Figure 4.- Shows another block diagram of the multifunction acoustic warning control system, according to a second preferred embodiment.
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    PREFERRED EMBODIMENT OF THE INVENTION
    Several examples of preferred realization are described below, mentioning the figures mentioned above, without limiting or reducing the scope of protection of the present invention.
    According to a first preferred embodiment, shown in Figure 2, the multifunctional acoustic alarm (1) has a connector (7) that houses an encapsulated control system (10) inside it, which is connected through Feeding terminals (T1-T4) to a switchboard, such as a vehicle switchboard. More specifically, in figure 3 a block diagram of the control system (10) of the warning device according to this first embodiment is observed, comprising:
    - a coil (6) connected by one of its ends to a first terminal (T1), while its other end is connected to a fourth terminal (T4) through different elements explained below,
    - a pulse generator (11), responsible for energizing the coil (6) through an electronic switching device (20),
    - a first control circuit (12) to adjust the frequency and duty cycle of the pulse generator (11); and control the current flowing through the first power terminal (T1) according to a first normal operating mode,
    - a second control circuit (13) for analyzing a PWM pulse width modulated signal from the third power terminal (T3), wherein said PWM signal includes the frequency of the sound to be generated and the duration time of the PWM signal; besides controlling the current flowing through a second terminal (T2), according to a second variable mode of operation;
    - where the electronic switching device (20) is connected to both the pulse generator (11) and the second control circuit (13), for the connection and / or disconnection of the coil (6), and may be in configuration for a negative ("Low Side") or positive ("High Side”) switching system;
    - a pair of A / D converters (30.1, 30.2), connected to both the first and second power terminals (T1, T2) and their respective control circuits (12, 13), for the conversion of an analog voltage into a digital tension; Y
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    - a voltage protection and detection device (40) connected between the first and second power supply terminal (T1, T2), as a safety element, to avoid overheating problems.
    Thus ^ in the case of the normal operation of the acoustic warning (1), the first control circuit (12) will adjust the pulse generator (11) to the desired frequency and duty cycle for, by means of the electronic switching device ( 20), energize the coil (6) for a standard operation of the acoustic warning.
    On the other hand, when it is desired to use the alarm for other functionality than the standard one, the power supply of the second terminal (T2) will be activated, and then the second control circuit (13) will receive from the third terminal (T3) a PWM signal whose frequency will be the frequency of the sound to be generated as well as the duration time of the PWM signal. This second control circuit (13) will detect this information, and adapt the frequency and duty cycle of the signal that controls the electronic switching device (20) to energize the coil (6) to the transmitted values. In this way it is possible to generate multiple tones, with different durations and sound pressure levels, as well as any combination of tones.
    According to a second preferred embodiment, shown in Figure 4, the control system (10) in this case dispenses with the second terminal (T2), the voltage protection and detection device (40) and the second A / D converter (30.2), therefore, structurally simpler with respect to the first embodiment described above. Thus, as shown in Figure 4, in this second embodiment the second control circuit (13) is directly connected to the first A / D converter (30.1), and is also adapted to analyze a signal modulated by width PWM pulse from the third power terminal (T3), said PWM signal including the frequency of the sound to be generated and the duration of the PWM signal.
    Unlike the current systems used in automotive vehicles, where there is an electrical system for the acoustic warning and another electrical system for the alarm / information device, such as a buzzer (‘buzzer’); he
    The warning system of the invention allows a simpler integration, as it has at least two independent activation supplies. In addition, since the frequency of the PWM signal received by the second control circuit (13) by the third terminal (T3) is what will determine the operating frequency of the alarm, 5 this makes its field of application wider.
    By not having frequencies programmed for certain codes, as in the current systems, the acoustic warning (1) will generate an alarm at any frequency transmitted from the vehicle control unit through the third terminal (T3). This design is very useful, taking into account the diversity of existing platforms and customers in the automotive sector, as well as the great diversity of current applications that can be covered by the use of an acoustic warning.
    The design set forth in the present invention makes it possible to generate sounds in a very wide range of frequencies and sound powers, without the need to reprogram the control circuit. The adjustment is achieved by modifying the characteristics of the PWM signal received by the second control circuit (13) by the third terminal (T3).
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    权利要求:
    Claims (4)
    [1]
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    1. - Acoustic warning (1) multifunction that has at least one coil (6) and a control system (10) that can be connected via power supply terminals (T1-T4) to a switchboard, where said control system (10 ) comprises a pulse generator (11), characterized in that the control system (10) additionally comprises:
    - a first control circuit (12), connected to a first terminal (T1), to adjust the frequency and the duty cycle of the pulse generator (11) which, through an electronic switching device (20), energizes the coil (6) for a normal operating mode;
    - a second control circuit (13) for analyzing a PWM pulse width modulated signal from a third power terminal (T3), where said PWM signal includes the frequency of the sound to be generated and the duration time of the PWM signal for a variable mode of operation; Y
    - where the electronic switching device (20) is connected to both the pulse generator (11) and the second control circuit (13), for the connection / disconnection of the coil (6).
    [2]
    2. - Acoustic warning (1) multifunction according to claim 1, characterized in that the first power terminal (T1) has a first A / D converter (30.1), connected in turn to the first control circuit (12 ).
    [3]
    3. - Acoustic warning (1) multifunction according to claim 1, characterized in that it additionally comprises a voltage protection and detection device (40) connected between the first power terminal (T1) and a second power terminal (T2 ).
    [4]
    4. - Acoustic warning (1) multifunction according to claim 3, characterized in that the second power terminal (T2) has a second A / D converter
    (30.2), in turn connected to the second control circuit (13).
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    同族专利:
    公开号 | 公开日
    ES2586397B1|2017-07-07|
    WO2017182684A1|2017-10-26|
    EP3446794A4|2019-12-04|
    EP3446794A1|2019-02-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0237727A2|1986-03-15|1987-09-23|Hella KG Hueck & Co.|Electromagnetic signal horn|
    EP0657869A1|1993-12-03|1995-06-14|Klaxon S.A.|Multiple-function control module for vehicle horn|
    GB2358077A|1999-10-28|2001-07-11|Vlsi Solution Oy|Control coupling for a buzzer|
    WO2003103857A1|2002-06-06|2003-12-18|Fabbrica Italiana Accumulatori Motocapri|Electronic control circuit and acoustic-signal emitting device for vehicles|
    US4100543A|1977-02-04|1978-07-11|Napco Security Systems, Inc.|Audible alarm apparatus particularly adaptable for use with fire and theft security systems|
    CA2488603A1|2002-06-06|2004-01-22|Fabbrica Italiana Accumulatori Motocarri Montecchio F.I.A.M.M. S.P.A.|Acoustic-signal emitting device for vehicles|
    JP4602231B2|2005-11-08|2010-12-22|株式会社オートネットワーク技術研究所|Pronunciation control device|ES1236949Y|2019-09-26|2020-01-24|Clarton Horn S A U|Multifunction buzzer|
    法律状态:
    2017-07-07| FG2A| Definitive protection|Ref document number: 2586397 Country of ref document: ES Kind code of ref document: B1 Effective date: 20170707 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201630488A|ES2586397B1|2016-04-18|2016-04-18|Multifunction acoustic warning|ES201630488A| ES2586397B1|2016-04-18|2016-04-18|Multifunction acoustic warning|
    PCT/ES2017/070127| WO2017182684A1|2016-04-18|2017-03-07|Multifunctional acoustic warning device|
    EP17785499.9A| EP3446794A4|2016-04-18|2017-03-07|Multifunctional acoustic warning device|
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