BR-102019026215-B1 - ACOUSTIC SIGNAL

Abstract

ACOUSTIC SIGNALING DEVICE. This is an acoustic signaling device, belonging to the sector of electro-electronic equipment directed to the field of sound signaling for alarms and warnings (sirens and similar devices), providing signaling and clearing traffic for the emergency movement of special tactical service vehicles, public or private. It can also be used in fixed locations to work in conjunction with surveillance cameras and other alarm and monitoring systems in general, having the capacity to emit warning sounds that resonate at a frequency of 400 to 3000Hz, with an acoustic efficiency of 110dB +/- 3%, and low typical harmonic distortion (THD) of 0.06%.

Inventors

• CARLOS ALBERTO DE MOURA

Assignees

• MOBISIG TELECOM LTDA

Dates

Publication Date

20260317

Application Date

20191211

Claims (2)

1. 1) - “ACOUSTIC SIGNAL”, consisting of a high-efficiency acoustic signal (1), with built-in amplifier assembly (2) and automatic digital power manager, characterized by having the ability to emit warning sounds that resonate at a frequency of 400 to 3000Hz, acoustic efficiency of 110dB +/- 3%, low typical harmonic distortion THD 0.06 - %; forming a substantially bell-shaped body, but with quadrangular contours and rounded edges (3), featuring a series of parallel and sequential salient friezes (4) for structural reinforcement on its lateral, upper and lower faces, composed of a horn (5) with a quadrangular front opening enclosing an inverted conical body (6) and centered between median radial fins (7), said horn (5) being joined to its trapezoidal rear cover (8) equipped with an outlet with a tubular flange (9) for passing the wire of the electrical harness (10), inside which remain protected its complementary elements formed by the tapered cone (11), discoid membrane (12), rectangular bars of internal reinforcement (13), speaker (14) and the aforementioned amplifier assembly (2), the operation of the acoustic signaler also being guaranteed by the representations (A) to (F) of the circuit diagrams.
2. 2) - “ACOUSTIC SIGNALING DEVICE”, according to claim 1, characterized in that the circuit assembly comprises: (A): “L1” - inductor responsible for filtering in the power supply line; - (B): “REG-1” - voltage regulator integrated circuit responsible for supplying the 5Vdc stabilized line in the circuit; - (C): Power “Mosfet” transistor responsible for the managed power output that powers the entire acoustic and visual signaling system; - (D): Operational amplifier integrated circuit responsible for amplifying the microphone input and the A.A.G. system; - (E): Class A/B audio amplifier integrated circuit with very low harmonic distortion, responsible for amplifying the square wave signals of siren sounds and the sinusoidal wave generated by the voice signal captured by the electret or dynamic microphone; - (F): “CI-1” microcontroller programmable via proprietary software, generates siren sounds, manages microphone input, controls microphone input gain level, intelligently manages the system's electrical power to interact with the vehicle's energy balance, ensuring and preserving the vehicle's battery charge, “Sleep” function that monitors all consumers and activates hibernation mode, reducing “stand-by” consumption to less than 200 microamps.

Description

[001] This patent application concerns an acoustic signaling device, belonging to the sector of electro-electronic equipment directed to the field of sound signaling for alarms and warnings (sirens and similar devices). [002] Said acoustic equipment was conceived, designed and developed in order to provide signaling and clearing of traffic for the emergency movement of special tactical service vehicles, public or private (motorcycles and/or police cars, fire trucks, civil defense, ambulances, rescue vehicles, property security, etc.), and can also be used in fixed locations to work in conjunction with surveillance cameras and other alarm and monitoring systems in general. [003] Regarding the state of the art, it is known that there are relatively similar products on the market, which, however, present a series of problems, notably in relation to non-compliance with standards and applications in emergency vehicles, aggravated by very low sound efficiency, not proving to be entirely adequate in situations that require the rapid perception and action of the drivers of the vehicles ahead, so that they immediately and safely meet the crucial need to clear the roads. [004] The few models equipped with greater sound emission capacity have the drawback of requiring high electrical consumption, and are also less resistant to their primary functions, where some of their components end up succumbing to constant operational demands, wearing out prematurely, aided by the negative impacts caused by the action of the elements (winds, storms, hail, humidity, dust, temperature variations, pollution, intense cold or heat, etc.). [005] To further clarify and assist the state of the art, surveys were carried out which returned a wide variety of models belonging to the same operational field, but conceptually distinct, such as the following documents: - MU 7102709-2, relating to a rotating siren for an emergency taxi light comprising an upper part consisting of a box equipped with tweeters and lights on the sides, the box being disposed inside a protective cover attached to the center on the axis set in rotating motion by the set of gears contained in the fixed lower assembly, provided with an aluminum bar on its lower part, for fixing the siren onto the taxi's emergency light; - PI 9501366-0, which deals with an improvement in a siren body, having a parallelepiped box including a rear cover, so that all electronic components can be mounted inside such assembly, with an acoustic shell provided on one of the faces of the box, with a perimeter wall facing inwards and including fixing features aligned with other means and where The coupling and fixing are carried out in such a way that the said shell remains inverted and away from the corresponding face of the box, centered in relation to a hole existing in said face, characterizing the resources necessary for omnidirectional sound acoustics; - MU 7601040-6, presenting a piezoelectric siren capsule, composed of a ceramic disc not coupled to the diaphragm, attached inside a cylindrical plastic support provided with a cavity duly dimensioned to resonate at the siren frequency, also configuring in the central and rear part, an equally cylindrical housing, inside which a transformer is fixed that acts as an impedance matching device, eliminating the tuned "L and C" circuit applied in "tweeters" and similar devices; - MU 7702026-0, corresponding to an electronic system arranged in a talking siren for alarms, comprising a digital memory where digitized voice or sound signals are recorded, reproduced upon activation, also interconnected with a digital/analog converter that transforms the signals from said memory. in analog signals, intensified by the power amplifier, converted into sound by the transducer; - PI 9705914-5, referring to an acoustic pavilion for an automotive siren, comprising a box-shaped body with a uniform and substantially reduced height, while its perimeter is ordinarily irregular (almost triangular), where one of its sides faces forward, configuring the fully open rectangular sound outlet, with a width fourteen times greater than the height, with two larger wall portions (upper and lower), between which there is a labyrinth, the first with lateral fixing wings, as well as both having the same shape, ordinarily triangular, with one side facing forward and one vertex facing backward, where they are rounded and with a sleeve for coupling a transducer, whose sound is conducted through an acoustic labyrinth formed between the walls; - PI 0202053-0, bringing a model of an intelligent siren that consists of a sound alert system created to be connected to alarm or security systems in general, pre-existing or already designed for Its use, whose main characteristic is to replace conventional sirens by providing alarms and other systems with the ability to speak appropriate messages instead of reproducing simple sequences of beeps, acts by analyzing the siren output of the alarm