KR-102961503-B1 - Acoustic system for head protective equipment providing amplified ambient sound and communication audio

KR102961503B1KR 102961503 B1KR102961503 B1KR 102961503B1KR-102961503-B1

Abstract

The present invention relates to an acoustic system mounted on a head protector, and more specifically, to an acoustic system for a head protector that enables effective perception of external ambient sounds and communication sounds even while the protector is being worn. The acoustic system for a head protector according to the present invention comprises: an external sound collection unit that collects external ambient sounds of the head protector; an ambient sound processing unit that removes noise components from the ambient sounds collected from the external sound collection unit and amplifies specific acoustic components; a communication acoustic input unit that receives communication acoustic signals from an external communication device; a protector status recognition unit that recognizes status information related to the type or wearing state of the head protector and outputs a status signal or control parameter; and an acoustic control unit that controls the output of the ambient sounds and the communication sounds selectively or in combination. The present invention provides an acoustic system for a head protector, comprising an output unit that outputs sound controlled by the acoustic control unit into the head protector, wherein the acoustic control unit sets the processing parameters of the environmental sound processing unit differently according to the type or wearing state of the head protector based on the state signal or control parameters provided by the head protector state recognition unit.

Inventors

박용기
장정헌

Assignees

주식회사 온린

Dates

Publication Date: 20260508
Application Date: 20260318

Claims (13)

In an acoustic system mounted on a head protector, An external sound collecting unit for collecting external environmental sounds of the head protector; An environmental sound processing unit that removes noise components from environmental sound collected from the above external sound collection unit and amplifies specific sound components; A communication acoustic input unit that receives a communication acoustic signal from an external communication device; A protective gear status recognition unit that recognizes status information related to the type or wearing state of the above-mentioned head protective gear and outputs a status signal or control parameter; A sound control unit that controls the output of the above environmental sound and the above communication sound selectively or in combination; and It includes an output unit that outputs sound controlled by the sound control unit into the head protector, An acoustic system for a head protector, wherein the acoustic control unit sets the processing parameters of the environmental sound processing unit differently according to the type or wearing state of the head protector based on the state signal or control parameters provided from the protective equipment state recognition unit.
In paragraph 1, The above head protection is at least one of a helmet, a gas mask, a bulletproof helmet, a fireproof helmet, or a cold-weather helmet, and is an acoustic system for head protection.
In paragraph 1, The above external sound collecting unit includes one or more microphones positioned on the outside of the head protector, and An acoustic system for head protection, wherein one or more of the above microphones are directional microphones or microphone arrays.
In paragraph 1, The above-mentioned ambient sound processing unit is an acoustic system for head protection that selectively emphasizes a voice band or a warning sound band.
In paragraph 1, The above communication audio input unit is connected to at least one of a radio, a smartphone, a vehicle communication system, or an external communication terminal, and An acoustic system for head protection, wherein the above communication acoustic input unit receives the communication acoustic through wired communication or wireless communication.
In paragraph 1, The above sound control unit automatically adjusts the output level of the communication sound according to changes in the magnitude or frequency of external ambient sound, and An acoustic system for head protection, wherein the above-described acoustic control unit controls the output of the above-described environmental sound preferentially when a specific dangerous sound is detected.
In paragraph 1, The above output unit includes a speaker or bone conduction transducer disposed inside the head protector, and An acoustic system for head protection, wherein the above-mentioned ambient sound and the above-mentioned communication sound are provided through different output paths.
In paragraph 1, The above protective gear status recognition unit detects whether the head protective gear is worn, and the sound control unit controls the operation of the sound system according to whether it is worn. An acoustic system for head protection, wherein the wearing status is detected via a pressure sensor, a proximity sensor, or a seal sensor.
In paragraph 1, The above acoustic control unit stores a plurality of acoustic correction profiles corresponding to the internal acoustic characteristics of the head protector, and An acoustic system for head protection, wherein the above acoustic correction profile is set differently for each type of head protection.
In paragraph 1, The above acoustic system is an acoustic system for head protection applied to head protection used in industrial sites, military and police operations, firefighting or disaster response environments.
In paragraph 1, the sound control unit is, An acoustic system for head protection that automatically adjusts noise removal parameters or effective acoustic enhancement parameters of the environmental sound processing unit to respond to background noise characteristics occurring in a medical or care environment, and controls to selectively enhance sounds generated according to the movement of a guardian or medical staff in conjunction with a mobile terminal.
In paragraph 1, the above environmental sound processing unit is, An acoustic system for head protection configured to analyze repetitive background noise into noise components and selectively emphasize frequency bands corresponding to human voices or call sounds.
In paragraph 1, the sound control unit An acoustic system for head protection that automatically adjusts noise removal parameters or effective acoustic enhancement parameters of the environmental sound processing unit to respond to background noise characteristics occurring in a medical or care environment, and controls the system to maintain a long-term wearing state in a low-power operation mode linked with a mobile terminal.

Description

Acoustic system for head protective equipment providing amplified ambient sound and communication audio The present invention relates to head protection equipment, and more specifically, to an acoustic system for head protection equipment that is mounted on various head protection equipment worn on the head, such as helmets, gas masks, bulletproof helmets, fireproof helmets, and winter helmets, and is capable of amplifying and noise-removing external ambient sounds while simultaneously providing communication sounds received from a radio, smartphone, or external communication device. In industrial sites, military and police operational environments, and fire and disaster sites, head protection equipment such as helmets, gas masks, bulletproof helmets, and fireproof helmets is mandatory to ensure the safety of workers. However, due to their structural characteristics, these head protectors block or distort external sounds, which presents a problem in that it is difficult for the wearer to accurately perceive ambient sounds. In particular, although warning sounds, approach sounds, and voice instructions from others are factors directly related to safety, wearing protective gear causes delays or makes recognition impossible, which is a problem. To address this, simple sound amplification devices or radio communication devices using microphones and speakers have been proposed, but these conventional technologies have the following limitations. It fails to consider the type of protective equipment, wearing conditions, and sound insulation characteristics; the mixing of external environmental sounds and communication sounds causes listening fatigue; and it lacks the safety-centered control concepts required in industrial, military, and special environments. Therefore, a new acoustic system is required that is suitable for the wearing environment of head protection while simultaneously satisfying external environment perception and long-distance communication. Furthermore, recently, there has been an increasing number of cases in medical and care environments requiring both external situational awareness and communication convenience while wearing head protection. The information described above disclosed in the background technology of this invention is intended only to enhance understanding of the background of the present invention and may therefore include information that does not constitute prior art. FIG. 1 is a block diagram illustrating the configuration of an acoustic system for a head protector according to the present invention. FIG. 2 is a block diagram illustrating the configuration of an environmental sound processing unit in an acoustic system for head protection according to the present invention. FIG. 3 is a block diagram illustrating the configuration of a protective device status recognition unit in an acoustic system for a head protective device according to the present invention. FIG. 4 is a block diagram illustrating the configuration of an acoustic control unit in an acoustic system for a head protector according to the present invention. Figure 5 is a diagram showing the state of wearing a helmet to which the present invention is applied. Figure 6 is a diagram showing the state of wearing a gas mask to which the present invention is applied. FIG. 7 is a flowchart illustrating the operation of an acoustic system for a head protector according to the present invention. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. The present inventions are provided to more fully explain the invention to those skilled in the art, and the following examples may be modified in various different forms, and the scope of the invention is not limited to the following examples. Rather, these examples are provided to make the disclosure more faithful and complete and to fully convey the spirit of the invention to those skilled in the art. Additionally, in the drawings below, the thickness or size of each layer is exaggerated for convenience and clarity of explanation, and like reference numerals in the drawings refer to like elements. As used herein, the term "and/or" includes any one of the listed items and all combinations of one or more thereof. Furthermore, in this specification, the meaning of "connected" refers not only to cases where Member A and Member B are directly connected, but also to cases where Member C is interposed between Member A and Member B so that Member A and Member B are indirectly connected. The terms used herein are for describing specific embodiments and are not intended to limit the invention. As used herein, the singular form may include the plural form unless the context clearly indicates otherwise. Additionally, as used herein, "comprise, include" and/or "comprising, including" specify the presence of the mentioned features, numbers, steps, actions, parts, elements, and/or groups thereof, and do not excl