TWI745815B - Industrial safety noise-proof headphones - Google Patents

Abstract

An anti-noise earphone for industrial safety, including an earphone device, and a microphone array, a reminder device and a radio control device arranged on the earphone device. The microphone array includes a plurality of microphones arranged at intervals in the earphone device. The radio control device can control the reminding device to send out a reminding message when analyzing the voice of the predetermined keyword words in the sound signals generated by the microphones. Through the design of the microphone array and the radio control device installed in the earphone device, when someone around the user wearing the industrial safety noise-proof earphone of the present invention speaks a predetermined keyword, the industrial safety noise-proof earphone can immediately respond The user generates a reminder function, so that the user can respond in real time, such as stopping the operation, paying attention to the surrounding environment, etc., which helps to improve the quality of industrial safety.

Description

Industrial safety noise-proof headphones

The invention relates to an earphone, in particular to an industrial safety noise-proof earphone.

In many noisy workplaces, such as heavy machinery operating sites, building construction sites, generator operating sites, and forging parts processing sites, etc., in order to prevent the ears of the on-site workers from being exposed to excessive noise for a long time and hearing damage, regulations are required When the ambient sound (noise) in the workplace reaches a predetermined decibel level or more, all staff in the workplace must wear noise-proof headphones.

Although this type of noise-proof headphones can reduce noise through special noise processing technology to avoid hearing damage to workers on the spot, on the other hand, they will also relatively block the speech of surrounding people. As a result, those who wear noise-proof headphones to operate machines and tools Workers will not be able to hear the reminders or calling sounds of other staff around, but will produce uncertain factors that endanger work safety. Therefore, there is still room for improvement for the current noise-proof headphones.

Therefore, the purpose of the present invention is to provide an industrial safety noise-proof earphone that can improve at least one of the disadvantages of the prior art.

Therefore, the industrial safety anti-noise earphone of the present invention is suitable for a user to wear on the head, and includes an earphone device, and a microphone array, a reminder device and a radio control device arranged on the earphone device. The earphone device includes a carrier for being worn on the head of the user, and two earphone bodies installed on the carrier and respectively arranged on both ears of the user. The microphone array includes a plurality of microphones arranged on the carrier at intervals, and each microphone can be used for receiving sound to generate a sound signal. The reminding device can be driven to generate a reminding message that can produce a reminding effect for the user. The radio control device is signally connected to the earphone device, the microphone array and the reminder device. The radio control device includes a voice signal capable of controlling the reminder device to emit the reminder when analyzing the voice of a predetermined keyword in the sound signals Voice detection module for reminding messages.

The effect of the present invention is: through the design of the microphone array and the radio control device installed in the earphone device, when the industrial safety anti-noise earphone of the present invention senses that someone around you speaks a predetermined keyword, it will immediately respond to it The user generates a reminder function, so that the user can respond in real time, such as stopping the operation, paying attention to the surrounding environment, etc., which helps to improve the quality of industrial safety.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.

Referring to Figures 1, 2, and 3, an embodiment of the industrial safety noise-proof earphone 200 of the present invention includes an earphone device 3 for wearing on the head of a user 900, and a microphone installed on the earphone device 3 Array 4, a display device 5, an image capture device 6, a reminder device 7 and a radio control device 8.

The earphone device 3 includes a carrier 31 for wearing on the head of the user 900, and two earphone bodies 32 that are installed on the carrier 31 at intervals on the left and right sides and are respectively arranged on the ears of the user 900. In this embodiment, the earphone device 3 is an over-ear earphone device, and the carrier 31 has a C-shape and is used to drive the earphone bodies 32 to cooperate and be elastically clamped down on the head of the user 900 The wearing part 311 of the wearing part 311, and a mounting part 312 disposed in the middle section of the wearing part 311 and relatively above the top of the user's 900 head. The mounting portion 312 has a top surface 313 facing upward, and an outer peripheral surface 314 connected to the periphery of the top surface 313.

The microphone array 4 includes a plurality of microphones 41, and the microphones 41 are arranged at intervals on the top surface 313 of the mounting portion 312. Each microphone 41 can receive a sound to obtain a sound signal. In this embodiment, the microphones 41 41 is a two-dimensional circular arrangement and distribution design, but when implemented, in other embodiments of the present invention, the microphones 41 can also be a one-dimensional linear array or a two-dimensional linear array distribution design, and the appropriate one can be selected according to requirements. The arrangement is designed, and it can also be arranged on the outer peripheral surface 314 of the mounting portion 312 in a one-dimensional or two-dimensional array distribution manner. Since the array microphone 4 can be arranged in many ways, the implementation is not limited to the above-mentioned aspect. The display device 5 is installed on the outer surface of the wearing part 311.

The image capturing device 6 is installed on the outer peripheral surface 314 of the mounting portion 312, and is located on the side of the earphone device 3 that faces away from the front of the user 900 when the headphone device 3 is worn on the head of the user 900, that is, it can be used to face the user 900. Image capture is performed on the back side of the person 900 to obtain an environmental image. In implementation, the image capturing device 6 can adopt a 180-degree viewing angle ultra-wide-angle lens design, and in another embodiment of the present invention, the image capturing device 6 can also be disposed on the top surface 313 of the mounting portion 312, And it can be designed to be able to capture images around the user 900.

Referring to FIGS. 1, 3, and 4, the reminding device 7 includes a plurality of vibrators 71 installed on the carrier 31 and the earphone bodies 32 at intervals of front and rear, and each vibrator 71 can be driven by the corresponding carrier 31 Or the earphone body 32 generates vibration that can be felt by the user 900, and the magnitude of the vibration force generated can be controlled. The vibrators 71 are, for example, but not limited to, distributed on the front, back, and bottom sides of each earphone body 32, and are distributed along the long front and back of the wearing part 311 of the carrier 31, and can be individually controlled. Whether to vibrate and control the intensity of the vibration, and coordinate with the earphone device 3 to generate a reminder message that can be used to generate a direction indication to the user 900.

The radio control device 8 is signally connected to the microphone array 4, the display device 5, the image capture device 6 and the reminder device 7, and includes a voice detection module 81, an image tracking module 82, and a voice extraction module. Group 83, and a button module 84 which is provided on the wearing part 311 of the earphone device 3 and can be used to control the modules.

The voice detection module 81 includes a keyword word setting unit 811, a voice analysis unit 812, and a sound source location unit 813. The keyword setting unit 811 can be controlled to be activated to control one of the microphones 41 to receive the sound. At this time, the operator can cooperate to speak the voice of the phrase scheduled as a keyword, for example, speak the voice of the industrial safety anti-noise headset 200 The name or title of the predetermined user 900, or the voice of reminding words such as "Caution", "Caution", "Danger", etc. are spoken, and the microphone 41 will receive an audio signal. Then, the keyword setting unit 811 triggers the voice analysis unit 812 to analyze the voice components present in the sound signal to obtain the word and sentence, and display the word and sentence on the display device 5. When the operator confirms that the word displayed by the display device 5 is correct, he can operate the key module 84 to control the keyword setting unit 811 to set the word as a keyword and store the setting.

When the keyword setting unit 811 has set a keyword, the voice analysis unit 812 can be controlled to start to analyze whether the voice of the keyword exists in the sound signals of the microphones 41, and will When it is determined that the voice of the keyword word exists in a certain sound signal, the sound source localization unit 813 is triggered to start. The sound source localization unit 813 analyzes the source direction of the key word in the sound signals, for example, analyzes the signal strength of the key word in each sound signal, and the voice of the key word received. The sequence and so on are used to determine the source direction of the key word speech, so as to obtain a sound source direction relative to the user 900. Since there are many ways to analyze the source direction of a specific voice from the sound signals, it will not be described in detail.

Then, the sound source positioning unit 813 controls the corresponding vibrator 71 to generate a predetermined vibration intensity according to the direction of the sound source, and uses the vibration effect generated by the vibrators 71 that are controlled to vibrate to generate on the vehicle 31 to indicate the This reminder message of the sound source direction. For example, when the direction of the sound source is the right rear side of the user 900, the vibrators 71 arranged on the right half rear side of the wearing part 311 and the right side earphone body 32 can be controlled to vibrate, so as to generate The effect of indicating that the sound source direction is right and rear; when the sound source direction is directly behind the user 900, the vibrators 71 arranged near the rear side of the wearing part 311 can be controlled to vibrate, thereby generating an indication of the sound source The direction is the rear effect. During implementation, the design of the placement position of the vibrators 71 and the design of the vibration force generated by the control can be used to coordinate to produce the effect of indicating the direction of the sound source, so the implementation is not limited to the above-mentioned examples.

The image tracking module 82 has a person feature creation unit 821, a person recognition unit 822, a possible speech object analysis unit 823, and a person tracking unit 824.

The character feature creation unit 821 can be activated to control the image capture device 6 to perform image capture. At this time, the user 900 can adjust and move the headset device 3 so that the image capture device 6 faces a target person Image capture is performed to obtain a target person image, the character feature creation unit 821 will continue to analyze and capture the character features existing in the target person image, and aggregate all the character features to establish a target person feature parameter. The character features include, but are not limited to, skin color, physical features such as hands, feet and torso, face shape, facial features, hairstyle, hair color, head accessories and accessories and other head features, and/or clothing styles, colors and patterns And other clothing features.

During implementation, in another embodiment of the present invention, the target person image can also be directly input into the character feature creation unit 821 for character feature extraction through other input interfaces, such as but not limited to USB Interface, or currently known wireless communication interface.

The character recognition unit 822 has a built-in general character feature parameter, which is composed of general human external shape features that can be used to identify the human body, such as, but not limited to, the head, hands, and feet connected to the torso, and Features such as facial features and the appearance of palms and fingers. The person recognition unit 822 can be controlled to analyze and recognize the person image existing in the environment image captured by the image capturing device 6 based on the target person characteristic parameter, so as to identify the person image corresponding to the target person. . The person recognition unit 822 can also be controlled to use the general person characteristic parameters as a reference to analyze and recognize all the person images existing in the environment image.

In implementation, in another embodiment of the present invention, when the person recognition unit 822 is driven to analyze and recognize the person image of the target person using the target person characteristic parameters, it can be designed to first be based on the general person characteristic parameters. Analyze all the human images existing in the environmental image, and then further analyze whether the target person exists in the identified human images according to the target person feature parameters, but the implementation is not limited to this.

The probable speech object 823 analysis unit is triggered when the person recognition unit 822 analyzes and recognizes the person images in the environmental image using the general person characteristic parameters, and analyzes the relationship between the person images and the image capturing device 6 Distance and distance, and analyze whether the person images are sideways or frontally facing the image capturing device 6, or facing away from the image capturing device 6, etc., and the distance among all the person images facing the image capturing device 6 is the closest The person is set as a possible speech object.

The person tracking unit 824 will further analyze the position of the person image in the environment image when the person recognition unit 822 recognizes the person image corresponding to the target person according to the target person characteristic parameters, so as to obtain the person image in reality. The position of a character in the world relative to the user 900. In addition, the person tracking unit 824 performs person recognition on the environment image based on the general person characteristic parameters in the person recognition unit 822, and the possible speech object analysis unit 823 sets a recognized person image as the possible speech object At the time, the position of the possible speech object in the environmental image is analyzed to obtain a character position of the possible speech object relative to the user 900 in the real world.

The voice extraction module 83 has a built-in target character radio mode 831 and a general character radio mode 832 that can be switched and activated. When the voice extraction module 83 activates the target person’s radio mode 831, it triggers the person recognition unit 822 to analyze and recognize the person in the environment image according to the target person’s characteristic parameters, and use beamforming technology to control the microphone array 4 toward the Voice extraction is performed in the direction corresponding to the character's position. When the voice extraction module 83 activates the general character radio mode 832, it triggers the character recognition unit 822 to analyze and recognize the character in the environmental image according to the general character characteristic parameters, and use beamforming technology to control the microphone array 4 toward the possibility. Voice extraction is performed in the direction corresponding to the person's position of the speaking object. The voice extraction module 83 transmits the voice signal obtained by the voice extraction to the earphone body 32 for output for the user 900 to listen to.

In this embodiment, regardless of whether the voice extraction module 83 is controlled to activate the target person's voice-receiving mode 831 or the general person's voice-receiving mode 832, the voice extraction module 83 will not only trigger the image tracking module 82, but also At the same time, the voice detection module 81 is triggered to analyze whether the voice signals of the microphones 41 have the voice of the keyword word, locate the sound source direction of the keyword word voice, and control the reminder message to generate a corresponding sound source The direction reminder message lets the user 900 know that there is a voice of the keyword word from the direction of the sound source. During implementation, in another aspect of the present invention, the voice extraction module 83 can also be used to control the microphone array 4 to perform voice extraction in the direction of the sound source using beamforming technology.

That is to say, the radio control device 8 analyzes the position of the target person or the possible speech object through image analysis technology, and analyzes the sound source direction of the keyword voice existing in the sound signals of the microphones 41 Once the target person or the possible speech object appears in the environment image, the voice will be extracted towards the corresponding person’s position, and when it is judged that the keyword voice appears, the reminding device 7 will be controlled to generate an instruction to indicate the corresponding The direction reminding message will be extracted from the corresponding direction of the sound source, and the extracted voice will be transmitted to the earphone device 3 for output for the user 900 to listen to.

With this design, when the user 900 wears the industrial safety noise-proof earphone 200 of the present invention for work in a high-noise environment, in addition to avoiding ear hearing damage due to high noise, it can also simultaneously monitor whether the target person appears in the surrounding environment. Or the possible speech object, and the target person or the possible speech object is radioed. Once the target person or the possible speech object speaks, the user 900 can hear and react immediately. At the same time, the industrial safety anti-noise earphone 200 also monitors the surrounding environment at any time whether there is a preset keyword voice, and once the keyword voice is detected, it will immediately generate a reminder message to remind the user 900 , The voice of the keyword is also output for the user 900 to listen to, so that the user 900 knows that someone has spoken the keyword, and can immediately stop working and react.

However, during implementation, in another embodiment of the present invention, the image tracking module 82 may not be provided, and only the voice detection module 81 is used to detect the sound source direction of the keyword voice and control the The reminding device 7 generates the reminding message to indicate the corresponding direction, and can produce a reminder effect of someone uttering a predetermined keyword voice for the user 900 in a high-noise environment. In addition, in other embodiments of the present invention, the reminding message generated by the reminding device 7 can also be changed to a sound form, and the sound source positioning unit 813 can control whether the sound source direction is located on the left or right side of the user 900 The reminding device 7 generates the reminder message in sound form on the earphone body 32 on the corresponding side, or directly outputs the reminder message in the form of voice corresponding to the direction of the sound source on the earphone body 32, so that the user 900 knows the keyword term Which side of him the sound comes from.

In summary, through the design of the voice detection module 81 installed in the microphone array 4 of the earphone device 3 and the radio control device 8, when the user 900 wearing the industrial safety noise-proof earphone 200 of the present invention is surrounded by people When a predetermined keyword is spoken, the industrial safety noise-proof headset 200 can immediately remind the user 900, so that the user 900 can respond in real time, such as stopping work, paying attention to the surrounding environment, and so on. It can further cooperate with the image capturing device and the design of the image tracking module 82 and the voice extracting module 83 of the radio control device 8 to analyze whether a specific target person or object may appear in the image of the tracking environment, and move toward The target person or the likely speaking subject performs speech extraction, so that when the target person or the likely speaking subject speaks in a high-noise environment, the user 900 can also know the content of the speech and can respond in real time. Therefore, the present invention is indeed a rather innovative design of the noise-proof earphone 200 for industrial safety, which can improve the quality of industrial safety, and can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to Within the scope covered by the patent of the present invention.

200·····Industrial Security Noise-proof Headphones 3········ Headphone device 31······ Vehicle 311····· Wearing Department 312····· Installation Department 313····· Top 314····· Outer peripheral surface 32······ Headphone body 4········ Microphone Array 41······ Microphone 5········Display device 6········ Image Capture Device 7········ Reminder 71······ Vibrator 8········ Radio control device 81······ Voice Detection Module 811·····Keyword Setting Unit 812····· Voice Analysis Unit 813····· Sound source positioning unit 82······ Image Tracking Module 821····· Characteristic Building Unit 822····· Person Recognition Unit 823····· Possible Speech Object Analysis Unit 824····· Character Tracking Unit 83······ Voice Extraction Module 831····· Target character radio mode 832·····General character radio mode 84······Key Module 900·····Users

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view of an embodiment of the industrial safety noise-proof earphone of the present invention; Figure 2 is a rear side view of the embodiment; Figure 3 is a schematic diagram of the embodiment for use on the head of a user; and Fig. 4 is a functional block diagram of this embodiment.

200·····Industrial Security Noise-proof Headphones 3········ Headphone device 31······ Vehicle 311····· Wearing Department 312····· Installation Department 313····· Top 314····· Outer peripheral surface 32······ Headphone body 4········ Microphone Array 41······ Microphone 5········Display device 7········ Reminder 71······ Vibrator 84······Key Module

Claims (9)

An anti-noise headset for industrial safety, suitable for being worn by a user on the head, and comprising: a headset device, including a carrier for wearing on the user’s head, and two mounted on the carrier A microphone array, including a plurality of microphones arranged on the carrier at intervals, and each microphone can be used to receive a sound to generate a sound signal; a reminder device can be The driver generates a reminder message that can produce a reminder effect to the user; an image capture device installed on the vehicle and can perform image capture to obtain an environmental image; and a radio control device that signals the headset device, The microphone array, the image capture device, and the reminder device. The radio control device includes a voice detection module, an image tracking module, and a voice extraction module. The voice detection module can analyze the sounds When there is a voice of a predetermined keyword in the signal, the reminding device is controlled to send out the reminding message. The image tracking module includes a character feature establishing unit, a character recognition unit, and a character tracking unit. The character feature establishing unit A target person image can be input, and the person characteristics of the target person image will be analyzed and captured to establish a target person characteristic parameter. The person recognition unit can analyze the environment image according to the target person characteristic parameter to identify the corresponding person image , The person tracking unit will analyze the position of the person image in the environment image relative to the vehicle to obtain the position of the person. The voice extraction module can control the microphone array to perform voice extraction in the direction corresponding to the person's orientation through beamforming technology, and transmit the voice signal obtained by the voice extraction to the earphone body for output. The industrial safety anti-noise headset according to claim 1, wherein the voice detection module has a voice analysis unit for analyzing and recognizing the voice of the predetermined keyword from the voice signals, and a sound source location Unit, the sound source location unit will be triggered when the voice analysis unit determines that there is a predetermined voice of the keyword word in the voice signals, and analyze the source direction of the keyword word in the voice signals to obtain A direction of the sound source relative to the user, and the reminding device is controlled to generate the reminding message for the user to perceive the direction of the sound source. The industrial safety noise-proof earphone according to claim 2, wherein the sound source positioning unit controls the reminder device to output the sound type reminder message on the earphone body that is biased toward the sound source. The industrial safety noise-proof earphone according to claim 2, wherein the reminding device has a plurality of vibrators arranged on the vehicle at intervals and can be driven to generate a perceivable vibration, and the sound source positioning unit controls the vibrators The reminder message is generated to indicate the direction of the sound source according to whether it is vibrated or not. The industrial safety noise-proof headset according to claim 2, 3, or 4, wherein the radio control device further includes a voice extraction module that can control the microphone array to perform voice extraction in the direction of the sound source through beamforming technology, and the voice The extraction module transmits the voice signal obtained by the voice extraction to the earphone body for output. The anti-noise headset for industrial safety as described in claim 2, 3 or 4, which also includes an installation In the display device of the vehicle, the voice detection module also has a keyword setting unit that can be controlled to start to control one of the microphones to generate a sound signal and control the voice analysis unit A word obtained by analyzing and recognizing the voice in the sound signal is displayed on the display device, and the keyword setting unit can be controlled to set the word displayed on the display device as the keyword. The industrial safety anti-noise headset according to claim 1, wherein the character feature establishing unit has a built-in general character feature parameter, and the character recognition unit can analyze and recognize all the characters in the environmental image based on the general character feature parameter analysis The image tracking module also includes a possible speech object analysis unit that can analyze the distance between the person images and the vehicle, and set the closest person image as a possible speech object. The person tracking unit analyzes The position of the character image set as the possible speech object in the environment image is used to obtain the position of the character. The voice extraction module has a built-in target character radio mode and a general character radio mode, and starts the target character radio Mode, it will trigger the person recognition unit to analyze and recognize the corresponding person image in the environment image based on the target person’s characteristic parameter analysis. When the general person’s radio mode is activated, the person recognition unit will be triggered to analyze and recognize according to the general person’s characteristic parameter. All human images in the environment image are displayed. The industrial safety anti-noise headset according to claim 7, wherein when the voice extraction module activates the predetermined character radio mode or the general character radio mode, it will synchronously control the voice detection module to analyze whether the sound signals are The predetermined keyword voice exists. The industrial safety noise-proof headset according to claim 1, wherein the carrier has a C-shaped wearing part that is previously clamped on the user's head, and a middle section of the wearing part. Relative to the mounting portion on the top of the user’s head, the mounting portion has an upwardly facing top surface and an outer peripheral surface connected to the periphery of the top surface. The microphones are distributed on the top surface of the mounting portion and/or the Outer peripheral surface.

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