Sound annunciator

Abstract

FIELD: acoustics.SUBSTANCE: invention relates to audio devices with the function of recording and playing back pre-recorded information, as well as to alarm systems with motion sensors. The sound annunciator is made in a compact housing with vandal protection and a universal mount. The sound annunciator comprises a programmable board with a memory controller, a motion sensor, a microphone for recording audio messages, a speaker for playing back recorded audio messages, LEDs for indication in the dark, an infrared receiver for receiving signals from a remote control. During the day, the device can operate from a solar battery, and at night or in cloudy weather – from a storage battery. In addition, the possibility of mains power supply is provided. The housing of the sound annunciator is made of plastic with moisture protection according to the IP55 standard and a metal mesh for protection against vandals. Due to the universal bracket, the device can be installed on any vertical plane.EFFECT: providing the possibility of reproducing sound notification in automatic mode, in which the notification is triggered as a reaction to the approach of an object.4 cl, 1 dwg

Description

[0001] Technical field

[0002] The invention relates to security alarm technology and can be used to inform people about approaching high-risk objects or protected objects.

[0003] Technology Level

[0004] A known sound alarm device (Patent No. 63575) comprises an audio frequency pulse generator, a transistor switch, and a piezoelectric buzzer. The first power supply terminal of the audio frequency pulse generator is connected to the output of a voltage and current limiter, and the second power supply terminal of the voltage and current limiter is connected to the second power supply terminals of the audio frequency pulse generator and the transistor switch. The input of the transistor switch is connected to the input bus, and the output is connected to the input of the audio frequency pulse generator. The first power supply terminal of the transistor switch is connected to the output of the voltage and current limiter. The piezoelectric buzzer is connected to the direct and inverse outputs of the audio frequency pulse generator.

[0005] The disadvantage of such a well-known sound alarm is the insignificant power of sound vibrations at a fixed voltage value that is supplied to the power supply buses, because the power supply of the audio frequency pulse generator is carried out through a voltage and current limiter.

[0006] Devices of the motion (presence) sensor type (MW-RS02 Sensor. http: / / www.transistor.ru / pdf / arlight / booklets / booklet_mw-sensors.pdf) are also known, which are capable of controlling electrical devices and appliances when people are detected in the scanned area.

[0007] The disadvantages of such devices are limited functionality.

[0008] An invention (RU 2076353 C1) is known, which relates to security alarm technology and can be used to protect against unauthorized access to various objects, such as cars, safes, entrance doors, etc. The proposed sensor is characterized by high vibration resistance and adjustable sensitivity.

[0009] Their disadvantages include limited range and susceptibility to false alarms (they can react to thermal fluctuations in the air or sudden temperature changes). Another drawback of existing systems is the need for connection to an electrical network, which significantly limits their applications.

[0010] A device for repelling animals is disclosed in Russian Federation Patent for Utility Model No. 20425 (publication date: November 10, 2001, IPC: A01M 29 / 02). The device comprises a single-chip microcomputer, a power amplifier, and an acoustic emitter, all connected in a suitable manner. It is also equipped with a measuring transducer for verifying proper operation, powered by a modulating information signal from the single-chip microcomputer. A light-emitting diode (LED) is used as the measuring transducer. The LED for the measuring transducer for verifying proper operation is the LED of the microprocessor's operating mode indicator.

[0011] A device for repelling animals and its acoustic signal synthesizer are known, disclosed in the Russian Federation Patent for Utility Model No. 29443 (publication date: 20.05.2003, IPC: A01M 29 / 02). The known device consists of a housing with a power source located inside it and an acoustic signal synthesizer associated with it, as well as an acoustic emitter electrically connected by an input to an output of a signal generating circuit of said synthesizer, wherein the power source and the acoustic signal synthesizer are installed inside the housing, on which a protective grill is installed, enclosing the acoustic emitter located on the outside of the housing. At least one operation switch and at least one device status indicator are located on the housing. The power source is in the form of a rechargeable battery.

[0012] A portable noisemaker is disclosed in U.S. Patent 2014112105 (publication date: April 24, 2014, IPC: A01M29 / 18). The device comprises a housing housing a sound emitter, a processor, and a power supply. The processor is connected to a first database configured to store a plurality of sound files. The sound emitter comprises an ultrasonic sound generator. The power supply includes a rechargeable battery. The device also comprises a receiver connected to the sound emitter.

[0013] A portable electromechanical sound device (Electromechanical horn for deterring animals) with manual control is known, disclosed in US Patent for Invention No. 10058089 (publication date: 08 / 28 / 2018, IPC: A01K15 / 02; A01M29 / 16; G05B15 / 02; G10K9 / 122) - prototype. The known device comprises an L-shaped body with a longer rectangular lower part and a shorter lower part protruding outward. The lower part is of such dimensions and shape that it can be held in the palm of the user's hand. An adjustable strap is attached to the back of the lower part and is made in the form of a loop. A piezoelectric speaker is installed inside the lower part, above which a battery with a microcontroller is installed inside the body. The low battery indicator light is mounted on the top end of the body, and the push button is located on the top of the body and is connected to the switch, power source and sound generation system.Pressing the push button produces a series of short audible beeps with decibel levels ranging from approximately 75 dB to 115 dB and a series of fundamental frequencies ranging from approximately 3 kHz to 10 kHz.

[0014] The disadvantage of these technical solutions is that they do not allow for the automatic playback of sound notifications, in which the notification is triggered in response to the approach of an object, without the active participation of the user.

[0015] Disclosure of the essence of the invention

[0016] The invention is based on the idea of ​​a compact, autonomous device for playing audio messages when people or animals approach it. Thanks to its universal mount, the device can be installed on any vertical surface (walls, poles, trees, etc.). The device is powered by a battery-powered remote control and can record any sounds or voice messages that affect the target audience (intruders attempting to gain access to a protected facility or trespassers crossing railroad tracks).

[0017] Advantages of the invention:

[0018] 1. Possibility of autonomous operation from a solar battery.

[0019] 2. Possibility of kicking from the electrical network (via a step-down transistor).

[0020] 3. Remote control (battery operated).

[0021] 4. The ability to repeatedly record any sounds or voice messages for a specific target audience.

[0022] 5. Housing with IP55 moisture protection system.

[0023] 6. The device has a vandal-resistant metal mesh.

[0024] 7. Several volume levels are provided for operation at different times of the day.

[0025] 8. Ability to remotely turn the device on and off.

[0026] 9. Ability to select the audio track for playback.

[0027] 10. Different usage scenarios:

[0028] - to repel animals;

[0029] - to warn people about a potential threat to life near a railway or other high-risk objects;

[0030] - to inform drivers about the specifics of railway crossings and to display other relevant information;

[0031] - for protection of various objects with alarm function;

[0032] - to prevent acts of illegal interference in the activities of railway transport (by informing intruders who enter protected facilities).

[0033] Brief description of drawings

[0034] The schematic diagram of the device is shown in Fig. 1, where:

[0035] 1 - programmable microcontroller;

[0036] 2 - solar battery;

[0037] 3 - battery;

[0038] 4 - power socket;

[0039] 5 - motion sensor;

[0040] 6 - microphone;

[0041] 7 - infrared receiver;

[0042] 8 - speaker;

[0043] 9 - LEDs;

[0044] 10 - remote control.

[0045] Implementation of the invention

[0046] The device is based on a programmable microcontroller with a memory controller and other auxiliary components. It is connected to a motion sensor, microphone, and LEDs. An infrared receiver is installed on the microcontroller for remote control.

[0047] The microcontroller is powered by a rechargeable battery, which can be charged either by solar power or from the mains. A speaker connected to the microcontroller is used to play recorded audio files.

[0048] The remote control consists of a printed circuit board containing the electronics and battery contacts, as well as a microchip that converts information about the pressed button into a sequence of electrical pulses sent to an infrared LED. The board contains a set of contact points with eight buttons, each with a different function.

Claims

1. An audio alarm, characterized in that it is housed in a compact, vandal-proof housing with a universal mount, the audio alarm contains a programmable board with a memory controller, a motion sensor, a microphone for recording audio messages, a speaker for playing back recorded audio messages, LEDs for indication in the dark, and an infrared receiver for receiving signals from the control panel.

2. A sound alarm according to paragraph 1, characterized in that it is designed to be powered from an electrical network.

3. A sound alarm according to paragraph 1, characterized in that it is designed to be powered by a battery.

4. A sound alarm according to paragraph 1, characterized in that it is designed to be powered by a solar battery.

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