Voice operated panel for industrial machines

Abstract

The utility model belongs to industrial machinery technical field discloses a voice operation panel for industrial machinery, including panel main part, the inside of panel main part is equipped with main control unit, communication module and power module, still includes at least one detachable microphone - indicator light unit and waveguide pipe array unit. The utility model operator's voice is collected by the nearest microphone - indicator light unit preferentially, the multicolor LED indicator light ring on microphone - indicator light unit provides visual feedback in time, and the voice signal is transmitted to the panel main body through the flexible connecting line or wireless connection mode, simultaneously, the panel main body also gathers the sound through the waveguide pipe array unit on the panel main body surface, and the waveguide pipe carries out the filtering to the sound, and the inside microphone is converted into the electric signal, can filter out the environmental noise of specific frequency efficiently, reduces the dependence on software noise reduction algorithm, promotes the robustness of voice operation panel under the extreme noise.

Description

Technical Field

[0001] This utility model relates to the field of industrial machinery technology, and in particular to a voice operation panel for use in industrial machinery. Background Technology

[0002] In the field of industrial machinery, traditional operation methods mainly rely on physical buttons and touch screens. With technological advancements, voice operation has been introduced as a more natural and efficient interaction method, allowing operators to control equipment when their hands are occupied or when remote operation is required.

[0003] Existing industrial voice control panels typically employ an integrated structure, combining the microphone, processor, and speaker into a single enclosed housing with several sound holes on its surface. This structure suffers from the following drawbacks: industrial environments are filled with various high-intensity, wide-frequency noises, such as machine tool cutting noise and fan noise. The microphone on the integrated panel is fixed in position, often far from the operator and thus far from the sound source. Furthermore, its simple sound hole structure allows for indiscriminate reception of environmental noise, resulting in an excessively low input signal-to-noise ratio. This necessitates heavy reliance on backend software algorithms for noise reduction, and the recognition rate drops sharply under extreme noise conditions. Summary of the Invention

[0004] To overcome the technical defects of the existing technology, this utility model provides a voice operation panel for industrial machinery.

[0005] The technical solution adopted by this utility model is: a voice operation panel for industrial machinery, including a panel body, inside which are a main controller, a communication module and a power module, and at least one detachable microphone-indicator unit and waveguide array unit; the microphone-indicator unit is electrically connected to the main controller inside the panel body via a flexible connecting cable or wireless connection, and the microphone-indicator unit has a built-in microphone module and a multi-color LED indicator ring surrounding the microphone module; the waveguide array unit is disposed on the shell surface of the panel body, and the waveguide array unit is composed of multiple independent waveguides, with one or more built-in microphones disposed at the rear of the waveguide array unit.

[0006] Preferably, the housing of the microphone-indicator unit is provided with a magnetic attachment and / or a locking attachment.

[0007] Preferably, the magnetic assembly includes a plug sleeve disposed on the microphone-indicator unit housing, a plug block disposed inside the plug sleeve, the plug block being pre-installed on the operator's safety helmet, and magnetic blocks being disposed at the end of the plug block and on the inner wall of the plug sleeve, the two magnetic blocks having different magnetic properties.

[0008] Preferably, the locking assembly includes a spring pin embedded in the plug block, and the plug sleeve has a locking hole that matches the pin of the spring pin.

[0009] Preferably, the cross-section of the waveguide in the waveguide array unit is set to honeycomb or vortex shape.

[0010] Preferably, there are multiple microphones, and the multiple microphones are arranged in an array behind the waveguide array unit.

[0011] Preferably, at least two microphone-indicator units are provided, and the main controller is used to compare the time difference of the voice signal arriving at different microphone-indicator units.

[0012] The beneficial effects of this invention are as follows: the operator's voice is preferentially collected by the nearest microphone-indicator unit, and the multi-color LED indicator ring on the microphone-indicator unit provides immediate visual feedback. The voice signal is transmitted to the main panel via a flexible connection cable or wireless connection. At the same time, the main panel also collects sound through the waveguide array unit on the surface of the main panel. After the waveguide filters the sound, it is converted into an electrical signal by the internal microphone, which can efficiently filter out environmental noise of specific frequencies, reduce the dependence on software noise reduction algorithms, and improve the robustness of the voice operation panel under extreme noise. The main controller can fuse the two audio signals from the microphone-indicator unit and the waveguide array unit on the main panel, or select the signal with a higher signal-to-noise ratio for processing, thereby achieving higher quality voice recognition. Attached Figure Description

[0013] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0016] Figure 3 This is a cross-sectional view of the main structure of the panel of this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Main panel; 2. Main controller; 3. Communication module; 4. Power module; 5. Microphone-indicator unit; 6. Waveguide array unit; 7. Flexible connecting cable; 8. Microphone module; 9. Multi-color LED indicator ring; 10. Waveguide; 11. Microphone; 12. Magnetic assembly; 13. Locking assembly; 14. Insert sleeve; 15. Insert block; 16. Magnetic block; 17. Spring pin; 18. Locking hole. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a voice operation panel for industrial machinery, including a panel body 1. The panel body 1 contains a main controller 2, a communication module 3, and a power module 4. It also includes at least one detachable microphone-indicator unit 5 and a waveguide array unit 6. The microphone-indicator unit 5 is electrically connected to the main controller 2 inside the panel body 1 via a flexible connecting cable 7 or a wireless connection. The microphone-indicator unit 5 has a built-in microphone module 8 and a multi-color LED indicator ring 9 surrounding the microphone module 8 (the multi-color LED indicator ring 9 is prior art and known to those skilled in the art). The waveguide array unit 6 is disposed on the surface of the panel body 1, and the waveguide array unit 6 consists of multiple independent waveguides 10. A waveguide array unit 6 is located behind the waveguide array unit 6. There are one or more built-in microphones 11. The operator's voice is preferentially picked up by the nearest microphone-indicator unit 5. The multi-color LED indicator ring 9 on the microphone-indicator unit 5 provides immediate visual feedback. The voice signal is transmitted to the panel body 1 via a flexible connection cable 7 or wireless connection. At the same time, the panel body 1 also picks up sound through the waveguide array unit 6 on the surface of the panel body 1. After the waveguide 10 filters the sound, it is converted into an electrical signal by the internal microphone 11. It can efficiently filter out environmental noise of specific frequencies, reduce the dependence on software noise reduction algorithms, and improve the robustness of the voice operation panel under extreme noise. The main controller 2 can fuse the two audio signals from the microphone-indicator unit 5 and the waveguide array unit 6 on the panel body 1, or select the signal with a higher signal-to-noise ratio for processing, thereby achieving higher quality voice recognition.

[0020] The microphone-indicator unit 5 is provided with a magnetic component 12 and / or a locking component 13 on its outer shell. The microphone-indicator unit 5 is fixed by magnetic attraction of the magnetic component 12 or by locking component 13, so as to realize quick wearing and removal of the microphone-indicator unit 5 without tools, thus improving the convenience of operation.

[0021] The magnetic assembly 12 includes a plug sleeve 14 disposed on the housing of the microphone-indicator unit 5. A plug block 15 is disposed inside the plug sleeve 14. The plug block 15 is pre-installed on the operator's safety helmet. Both the end of the plug block 15 and the inner wall of the plug sleeve 14 are provided with magnetic blocks 16. The two magnetic blocks 16 have opposite magnetic properties. When the plug sleeve 14 on the microphone-indicator unit 5 is fitted onto the plug block 15, the magnetic blocks 16 on the plug block 15 and the magnetic blocks 16 on the inner wall of the plug sleeve 14 are magnetically attracted due to their opposite magnetic properties, which facilitates the installation of the microphone-indicator unit 5.

[0022] The waveguide 10 in the waveguide array unit 6 has a honeycomb or vortex-shaped cross-section. Its length, aperture, and curvature are designed to attenuate low-frequency industrial noise in the range of 100Hz-1kHz, while efficiently conducting the main human voice frequency band of 300Hz-3.4kHz. Based on the physical characteristics of sound wave propagation in a waveguide 10 with a specific geometric structure, a waveguide 10 of a specific size will produce a significant attenuation effect on sound waves in a specific frequency band, while allowing sound waves of the target frequency band to pass through efficiently. The honeycomb or vortex-shaped structure can effectively attenuate the most common and strongest low-frequency noise in the industrial environment, while providing a good conduction channel for the human voice frequency band, thus realizing hardware-level pre-filtering.

[0023] Multiple microphones 11 are provided, and the multiple microphones 11 are arranged in an array behind the waveguide array unit 6. The main controller 2 is used to perform source localization and beamforming processing on the signals received by the microphone 11 array, which further enhances the signal-to-noise ratio of the operator's voice directly in front. The main controller 2 calculates the direction of the sound source by comparing the time difference and phase difference of the sound arriving at different microphones 11 in the microphone 11 array, and generates a directional "sound pickup beam" through an algorithm to receive only the sound from that direction and suppress noise from other directions. It combines the dual advantages of physical noise reduction of the waveguide 10 and software algorithm noise reduction of beamforming. The waveguide 10 first performs primary physical noise reduction, and the microphone 11 array then performs secondary electronic noise reduction, forming a two-stage noise reduction mechanism, which significantly improves the noise resistance. Sound source localization can ensure that only the voice from the operator's direction is enhanced.

[0024] At least two microphone-indicator units 5 are provided. The main controller 2 is used to compare the time difference of the voice signal arriving at different microphone-indicator units 5. Multiple microphone-indicator units 5 are connected to the same main controller 2 to realize sound source localization and select the signal waveguide 10 with the highest signal-to-noise ratio for voice recognition. Utilizing the principle that the speed of sound waves in the air is constant, the main controller 2 can calculate the spatial location of the sound source by calculating the time difference of the same sound signal arriving at different microphone-indicator units 5, and select the best signal accordingly. By comparing the signals of multiple microphone-indicator units 5, the voice operation panel can determine which microphone-indicator unit 5 is closest to the operator and has the best signal, and automatically use that microphone-indicator unit 5 as the main signal source, thereby maintaining the best sound pickup state in complex and dynamic industrial environments.

[0025] Example 2, as Figure 2 As shown, a further improvement has been made based on Embodiment 1. The locking assembly 13 includes a spring pin 17 embedded in the plug block 15. The plug sleeve 14 is provided with a locking hole 18 that matches the pin of the spring pin 17. Alternatively, the magnetic block 16 can be omitted. After the plug sleeve 14 is fitted onto the plug block 15, the pin of the spring pin 17 matches the locking hole 18 under the elastic force of the spring pin 17, thus completing the installation of the microphone-indicator unit 5. During disassembly, the pin of the spring pin 17 is separated from the locking hole 18, and then the plug sleeve 14 is separated from the plug block 15, thus disassembling the microphone-indicator unit 5.

[0026] In a further embodiment of the fixed installation of the microphone-indicator unit 5, the magnetic assembly 12 includes a plug sleeve 14 disposed on the housing of the microphone-indicator unit 5. A plug block 15 is disposed inside the plug sleeve 14. The plug block 15 is pre-installed on the operator's safety helmet. Magnetic blocks 16 are disposed at the end of the plug block 15 and on the inner wall of the plug sleeve 14. The two magnetic blocks 16 have opposite magnetic properties. The locking assembly 13 includes a spring pin 17 embedded in the plug block 15. The plug sleeve 14 is provided with a locking hole 18 that matches the pin of the spring pin 17. After the plug sleeve 14 is fitted onto the plug block 15, the two magnetic blocks 16 magnetically attract each other. Combined with the spring pin 17 and the locking hole 18, this makes the installation stability of the microphone-indicator unit 5 higher.

[0027] During operation, the microphone-indicator unit 5 is placed close to the sound source to avoid noise in space, and multiple microphone-indicator units 5 are used to locate the sound source. The waveguide array unit 6 performs physical preprocessing of the sound. The waveguide array unit 6 is optimized for the human voice frequency band and mechanically attenuates specific industrial noise frequency bands. By combining the microphone-indicator unit 5 and the waveguide array unit 6, hardware-level primary noise reduction and signal enhancement are achieved before the sound signal enters the voice operation panel, providing a high-quality signal source for subsequent processing.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A voice operation panel for industrial machinery, comprising a panel body (1), wherein the panel body (1) is internally provided with a main controller (2), a communication module (3), and a power supply module (4), characterized in that: It also includes at least one detachable microphone-indicator unit (5) and waveguide array unit (6). The microphone-indicator unit (5) is electrically connected to the main controller (2) inside the panel body (1) via a flexible connection cable (7) or wireless connection. The microphone-indicator unit (5) has a built-in microphone module (8) and a multi-color LED indicator ring (9) surrounding the microphone module (8). The waveguide array unit (6) is disposed on the housing surface of the panel body (1), and the waveguide array unit (6) is composed of multiple independent waveguides (10). One or more built-in microphones (11) are disposed behind the waveguide array unit (6).

2. The voice operation panel for industrial machinery according to claim 1, characterized in that: The microphone-indicator unit (5) has a magnetic attachment assembly (12) and / or a locking assembly (13) on its housing.

3. A voice operation panel for industrial machinery according to claim 2, characterized in that: The magnetic assembly (12) includes a plug sleeve (14) on the housing of the microphone-indicator unit (5). The plug sleeve (14) contains a plug block (15), which is pre-installed on the operator's safety helmet. Both the end of the plug block (15) and the inner wall of the plug sleeve (14) are provided with magnetic blocks (16), and the two magnetic blocks (16) have different magnetic properties.

4. A voice operation panel for industrial machinery according to claim 2, characterized in that: The locking assembly (13) includes a spring pin (17) embedded in the plug block (15) and a locking hole (18) on the plug sleeve (14) that matches the pin of the spring pin (17).

5. A voice operation panel for industrial machinery according to claim 1, characterized in that: The cross-section of the waveguide (10) in the waveguide array unit (6) is set to honeycomb or vortex shape.

6. A voice operation panel for industrial machinery according to claim 1, characterized in that: The microphone (11) is provided in multiples, and the multiple microphones (11) are arranged in an array behind the waveguide array unit (6).

7. A voice operation panel for industrial machinery according to claim 1, characterized in that: The microphone-indicator unit (5) is provided in at least two units, and the main controller (2) is used to compare the time difference of the voice signal arriving at different microphone-indicator units (5).

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