Robot voice broadcast and intercom system

Abstract

The utility model discloses a robot voice broadcast and intercom system. The system comprises an Android board, a power amplifier board, a loudspeaker, a voice loudspeaker, a USB sound card and a microphone board which are arranged on a robot. A 3.5 mm audio port of the Android board is connected with the loudspeaker through the power amplifier board to serve as a first voice playing channel; a power amplifier port of the Android board is connected with the voice loudspeakers, a USB port of the Android board is connected with the USB sound card, the USB sound card is connected with the microphone board, and the microphone board is connected with the plurality of voice loudspeakers, is used for capturing audio signals received by the voice loudspeakers and serves as a second voice playing channel; wherein the Android board is used for switching the first voice playing channel and the second voice playing channel. The android board switches the first voice playing channel and the second voice playing channel according to the environment noise level and the user interaction requirement, and it is ensured that clear and effective voice interaction experience can be provided in any environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of robot, especially a robot voice broadcast and intercom system. BACKGROUND

[0002] With the continuous improvement of living standards, the types of robots are also more and more, and people's requirements for robots are also higher and higher, especially the demand for intelligent service robots is increasingly urgent, so as to use them to engage in welcoming, distributing flyers, cleaning, transportation and guardianship and other work.

[0003] After searching, Chinese patent CN207139820U discloses an intelligent robot, which comprises a battery pack, a central processor, a mobile communication module, a touch sensor, a camera, a digital sound pickup device, a display screen, a voice speaker, an ultrasonic sensor, a standby switch, a USB interface, a differential drive wheel and a universal wheel; the number of voice speakers is two, and they are symmetrically embedded in the left and right lower rib area shell surfaces of the trunk, respectively; the central processor is communicatively connected with the mobile communication module, the touch sensor, the camera, the digital sound pickup device, the display screen, the voice speaker, the ultrasonic sensor, the standby switch and the USB interface, respectively; and the central processor is also communicatively connected with the controlled end of the differential drive wheel.

[0004] However, the patent has the following shortcomings:

[0005] In outdoor environments, especially in noisy public places, a single voice speaker may not be able to provide sufficient volume coverage, resulting in poor information transmission effect. INVENTION CONTENTS

[0006] Therefore, it is necessary to provide a robot voice broadcast and intercom system to solve the problem that a single voice speaker of the existing robot may not be able to provide sufficient volume coverage in outdoor environments, resulting in poor information transmission effect.

[0007] To achieve the above purpose, the embodiment provides a robot voice broadcast and intercom system, which comprises an Android board, a power amplifier board, an extension speaker, a voice speaker, a USB sound card and a microphone board arranged on the robot.

[0008] The 3.5mm audio port of the Android board is connected with the extension speaker through the power amplifier board, serving as a first voice playing channel.

[0009] The power amplifier port of the Android board is connected with the voice speaker, the USB port of the Android board is connected with the USB sound card, the USB sound card is connected with the microphone board, and the microphone board is connected with a plurality of voice speakers, which is used to capture the audio signals received by the voice speakers, serving as a second voice playing channel.

[0010] The Android board is used to switch the first voice playing channel and the second voice playing channel.

[0011] Further, the sound amplification speaker is a 20045 sound box with a rated impedance of 8Ω and a rated power of 15W; and / or:

[0012] The sound amplification speaker has a plurality of.

[0013] Further, the voice speaker is a 4100BOX sound box with a rated impedance of 8Ω and a rated power of 5W.

[0014] The rated impedance of the power amplifier port is 4Ω, and the rated power is 3W.

[0015] Further, the power amplifier board is DY-AP3015\D class.

[0016] Further, the microphone board is XFM-4MICBoard\4MIC.

[0017] Further, the robot further comprises a shell.

[0018] The sound amplification speaker is located on the patrol outer layer assembly of the shell.

[0019] The voice speaker is located on the side of the shell.

[0020] The Android board, the power amplifier board, the USB sound card and the microphone board are all arranged inside the shell.

[0021] Further, the microphone board is locked on the rear face shell assembly of the shell by self-tapping screws.

[0022] Further, the voice speaker is locked on the voice speaker shell by bolts, and the voice speaker shell is locked on the rear face shell assembly of the shell by pressure riveting, studs and nuts.

[0023] Further, the sound amplification speaker is locked on the side of the patrol outer layer assembly by half-head bolts.

[0024] Further, the power amplifier board and the USB sound card are respectively locked on the first fixed metal plate inside the shell by hexagonal studs and cross-slot disc head screws.

[0025] The Android board is locked on the second fixed metal plate inside the shell by bolts.

[0026] Compared with the prior art, the above technical solution has the following beneficial effects:

[0027] The first voice playing channel: the Android board outputs the audio signal to the power amplifier board through the 3.5mm audio port, and the power amplifier board drives the loudspeaker after amplifying the signal. The robot can provide sufficient volume coverage in a noisy outdoor environment, ensuring the information transmission effect to realize the long-distance voice broadcast function, and is suitable for occasions that require loud broadcasting.

[0028] The second voice playing channel: the microphone board captures the audio signal received by the voice speaker, and transmits it to the Android board through the USB sound card for response or further voice recognition processing, so that the robot can have more natural two-way voice interaction, improving user experience and interaction efficiency.

[0029] Channel switching: the Android board switches the first and second voice playing channels according to the environmental noise level and user interaction demand, ensuring clear and effective voice interaction experience in any environment.

[0030] The above content related to the utility model is only a summary of the technical scheme of the present application. In order to enable those skilled in the art to more clearly understand the technical scheme of the present application, and then can be implemented according to the content recorded in the specification and drawings, and in order to let the above-mentioned purpose and other purposes, characteristics and advantages of the present application can be more easily understood, the following is described in combination with the specific embodiment of the present application and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings are only used to show the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and cannot be considered as a limitation of the present application.

[0032] Figure 1 It is an electrical schematic diagram of the voice broadcast and intercom system in the embodiment;

[0033] Figure 2 It is a perspective view of the robot voice broadcast and intercom system in the embodiment;

[0034] Figure 3 It is an assembly drawing of the voice broadcast and intercom system in the embodiment;

[0035] Figure 4 It is Figure 3 Assembly drawing of the microphone board in the embodiment;

[0036] Figure 5 Assembly drawing of the voice speaker in the embodiment;

[0037] Figure 6 Assembly drawing of the loudspeaker in the embodiment;

[0038] Figure 7 Assembly drawing of the power amplifier board in the embodiment;

[0039] Figure 8 Assemble drawing of USB sound card in this embodiment;

[0040] Figure 9 Assemble drawing of Android board in this embodiment.

[0041] Explanation of reference signs:

[0042] 10, rear shell assembly;

[0043] 11, patrol shell assembly;

[0044] 12, top cover shell assembly;

[0045] 13, first fixed metal plate;

[0046] 14, second fixed metal plate;

[0047] 20, microphone board; 201, self-tapping screw;

[0048] 21, voice speaker; 211, bolt; 212, stud; 213, voice speaker shell;

[0049] 22, loudspeaker;

[0050] 23, Android board;

[0051] 24, USB sound card; 241, hexagonal stud;

[0052] 25, power amplifier board; 251, hexagonal stud. DETAILED DESCRIPTION

[0053] In order to explain possible application scenarios, technical principles, specific schemes that can be implemented, purposes and effects that can be achieved, etc. of the present application in detail, the following will be described in detail in combination with specific embodiments listed and with the aid of the drawings. The embodiments described in this paper are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0054] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, and does not particularly limit the independence or association between other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0055] Unless otherwise defined, the meanings of technical terms used in the present application are the same as those commonly understood by one of ordinary skill in the art to which the present application belongs; the use of related terms in the present application is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0056] In the description of the present application, the phrase "and / or" is a description of a logical relationship between objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally represents that the associated objects before and after are a "or" logical relationship.

[0057] In the present application, the terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary, or order relationship between the entities or operations.

[0058] In the present application, without more limitation, the "includes", "contains", "has" or other similar open expressions used in the sentence are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of other elements in the process, method or product including the described elements, so that the process, method or product including a series of elements can not only include those limited elements, but also include other elements not explicitly listed, or also include the elements inherent in such process, method or product.

[0059] As the same as the understanding in the "Guidelines for Examination", in the present application, the expressions such as "greater than", "less than", "exceed" are understood as not including the number; the expressions such as "above", "below", "within" are understood as including the number. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly limited.

[0060] In the description of the embodiments of the present application, the spatial-related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or the drawings, and are only for the convenience of describing the specific embodiments of the present application or for the reader to understand, and are not intended to indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0061] Unless otherwise clearly indicated or implied to the contrary by context, the terms "mount", "couple", "connect", "fixed", "set", and like terms are used herein generally to generally refer to the connection between two elements. For example, "connected" can be a fixed connection, or a releasable connection, or an integral connection; it can be a direct connection, or an indirect connection via intermediate media; it can be a combination of two or more of the above. The specific meaning of these terms in the context of the embodiments described herein will be apparent to those skilled in the art from the description of the embodiments.

[0062] Please refer to Figures 1 to 9 The embodiment provides a robot voice broadcast and intercom system, comprising: an Android board 23, an amplifier board 25, an expansion loudspeaker 22, a voice loudspeaker 21, a USB sound card 24 and a microphone board 20 arranged on the robot.

[0063] The 3.5mm audio port of the Android board 23 is connected to the expansion loudspeaker 22 through the amplifier board 25, serving as a first voice broadcast channel.

[0064] The amplifier port of the Android board 23 is connected to the voice loudspeaker 21, the USB port of the Android board 23 is connected to the USB sound card 24, the USB sound card 24 is connected to the microphone board 20, and the microphone board 20 is connected to multiple voice loudspeakers 21, for capturing audio signals received by the voice loudspeakers 21, serving as a second voice broadcast channel.

[0065] The Android board 23 is configured to switch between the first voice broadcast channel and the second voice broadcast channel.

[0066] The first voice broadcast channel: the Android board 23 outputs audio signals to the amplifier board 25 through the 3.5mm audio port, the amplifier board 25 amplifies the signals and drives the expansion loudspeaker 22, the robot can provide sufficient volume coverage in a noisy outdoor environment, ensuring the information transmission effect to realize the long-distance voice broadcast function, and is suitable for occasions requiring loud broadcasting.

[0067] The second voice broadcast channel: the microphone board captures audio signals received by the voice loudspeakers 21, which can be transmitted to the Android board 23 through the USB sound card 24 for response or further voice recognition processing, so that the robot can have more natural two-way voice interaction, improving user experience and interaction efficiency.

[0068] Channel switching: the Android board 23 switches between the first and second voice broadcast channels according to the environmental noise level and user interaction demand, ensuring clear and effective voice interaction experience in any environment.

[0069] In this embodiment, the loudspeaker 22 is a 20045 speaker box with a rated impedance of 8Ω, a rated power of 15W, and a frequency characteristic of full band (full range). The size can be 20 cm long x 4.5 cm wide x 2.5 cm high. This configuration enables the robot to clearly transmit voice information even in a noisy outdoor environment, achieving efficient sound amplification and transmission.

[0070] In this embodiment, there are multiple loudspeakers 22, which can be distributed at different positions or nearby positions of the robot to ensure effective sound transmission. Figure 1 、 Figure 2 Two loudspeakers 22 are shown, which are symmetrically arranged left and right.

[0071] In this embodiment, the voice speaker 21 is a 4100BOX speaker box with a rated impedance of 8Ω and a rated power of 5W, achieving efficient voice playback. Figure 2 Two voice speakers 21 are shown, which are symmetrically arranged left and right. This configuration enables the robot to provide clear and high-quality voice output in situations that require clear voice interaction, such as customer service or information broadcasting.

[0072] In this embodiment, the power amplifier port has a rated impedance of 4Ω and a rated power of 3W, which matches the impedance and power of the voice speaker 21, ensuring that the power amplifier can provide stable and efficient power output and avoid signal distortion.

[0073] In this embodiment, the power amplifier board 25 is a DY-AP3015\D class, i.e., the working mode is PWM modulation, the working voltage is 8-24V, the sound channel number is stereo (two channels), and the maximum output power (@1KHz) is: 18W2@12V 4Ω; 10W2@12V 8Ω; 15W2@16V 8Ω; 20W2@20V 8Ω; 20W2@20V 8Ω (requires a heat sink); compatible speakers (30W-150W): 4Ω (8-12V power supply); 8Ω (8-24V power supply); module protection mechanism: power reverse connection protection; short circuit protection; self-recovery overheat protection.

[0074] In this embodiment, the microphone board 20 is an XFM-4MICBoard\4MIC, which uses a multi-microphone array technology to improve the clarity and intelligibility of voice signals through spatial filtering and beamforming algorithms, while suppressing background noise, especially suitable for voice interaction of robots in noisy outdoor environments.

[0075] Please refer to Figure 2 and Figure 3In this embodiment, the robot further comprises a shell that not only protects the internal components but also provides a structural framework for mounting and positioning other elements; the loudspeaker 22 is located on the patrol shell assembly 11 of the shell, which is preferably located on the top and mounted on the top cover shell assembly 12 of the shell; the loudspeaker 22 can effectively spread sound to the external environment without being blocked by internal components; the voice speaker 21 is located on the side of the shell, which helps to capture and play close-range voice signals while maintaining the neatness and aesthetics of the robot appearance; the Android board 23, the power amplifier board 25, the USB sound card 24, and the microphone board 20 are all located inside the shell, protecting these sensitive electronic components from external environmental factors such as dust, moisture, and impact.

[0076] Please refer to Figure 4 In this embodiment, the microphone board 20 is locked on the back shell assembly 10 of the shell by self-tapping screws 201 (such as 3 M2*3 self-tapping screws). Self-tapping screws provide a quick and stable fixing method, ensuring the stability of the microphone array when the robot moves or is subjected to vibration. Alternatively, the microphone board 20 can also be limited and fixed by a number of BOSS columns and microphone holes.

[0077] Please refer to Figure 5 In this embodiment, the voice speaker 21 is locked on the voice speaker shell 213 by bolts 211, and the voice speaker shell 213 is locked on the back shell assembly 10 of the shell by pressure riveting, studs 212, and nuts (M6 nuts), all of which ensure the secure installation of the voice speaker 21 and enhance its durability.

[0078] Please refer to Figure 6 In this embodiment, the loudspeaker 22 is locked on the side of the patrol shell assembly 11 by half-head bolts (such as M4*10 half-head bolts).

[0079] Please refer to Figure 7 and Figure 8 In this embodiment, the USB sound card 24 and the power amplifier board 25 are respectively locked on the first fixed sheet metal 13 inside the shell by hexagonal studs 241, hexagonal studs 251 (such as M2*5 hexagonal studs), and cross-slot head screws (such as M2*3 head screws), and the first fixed sheet metal 13 is located on the side of the shell.

[0080] Please refer to Figure 9 In this embodiment, the Android board 23 is locked inside the shell by bolts on the second fixed sheet metal 14, which is located on the side of the shell.

[0081] In this embodiment, the robot voice broadcast and intercom system has the following functions:

[0082] 1、First voice playing channel: screen audio port + power amplifier board 25 + loudspeaker 22; second voice playing channel: screen power amplifier port + voice loudspeaker 21 + microphone board;

[0083] Voice function: man-machine voice intelligent question and answer & interaction, remote real-time voice two-way intercom played through the second voice playing channel;

[0084] Voice function: voice scene customization TTS voice broadcast, remote one-way shouting function played through the first voice playing channel;

[0085] Among them, voice playing is played in different channels according to voice function, and the first voice playing channel and the second voice playing channel cannot play simultaneously.

[0086] 2、Voice scene customization and man-machine voice intelligent question and answer & interaction function are closed during remote one-way shouting process;

[0087] 3、Remote real-time voice two-way intercom includes platform remote intercom and alarm button triggering dialing platform intercom; other three voice functions are closed during remote real-time voice two-way intercom process;

[0088] 4、Voice scene customization (advertisement & propaganda), TTS voice broadcast is issued by the platform, voice service content and broadcast time can be edited, and single broadcast or cyclic broadcast can be set;

[0089] 5、Remote intercom function can interrupt voice interaction during voice interaction process.

[0090] Finally, it needs to be pointed out that although the above-mentioned embodiments have been described in the specification and drawings of the present application, the patent protection scope of the present application cannot be limited thereby. Any technical solution obtained by replacing or modifying the equivalent structure or equivalent process based on the essential concept of the present application, using the content described in the specification and drawings of the present application, and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of the present application.

Claims

1. A robotic voice announcement and intercom system, characterized by, The robot comprises an Android board, a power amplifier board, a loudspeaker, a voice speaker, a USB sound card and a microphone board. The 3.5mm audio port of the Android board is connected to the loudspeaker through the power amplifier board, serving as a first voice playing channel. The power amplifier port of the Android board is connected to the voice speaker, the USB port of the Android board is connected to the USB sound card, the USB sound card is connected to the microphone board, and the microphone board is connected to a plurality of voice speakers, for capturing audio signals received by the voice speakers, serving as a second voice playing channel. The Android board is configured to switch between the first voice playing channel and the second voice playing channel. The loudspeaker is a 20045 speaker box with a rated impedance of 8Ω and a rated power of 15W; and / or 2. The robotic voice announcement and intercom system of claim 1, wherein, The loudspeaker has a plurality of loudspeakers. The voice speaker is a 4100BOX speaker box with a rated impedance of 8Ω and a rated power of 5W.

3. The robotic voice announcement and intercom system of claim 1, wherein, The power amplifier port has a rated impedance of 4Ω and a rated power of 3W. The power amplifier board is a DY-AP3015\D class.

4. The robotic voice announcement and intercom system of claim 1, wherein, The microphone board is an XFM-4MICBoard\4MIC.

5. The robotic voice announcement and intercom system of claim 1, wherein, The robot further comprises a shell.

6. The robotic voice announcement and intercom system of any one of claims 1 to 5, wherein, The loudspeaker is located on a patrol outer assembly of the shell. The voice speaker is located on a side of the shell. The Android board, the power amplifier board, the USB sound card and the microphone board are all arranged inside the shell. The microphone board is fastened to a rear face shell assembly of the shell by self-tapping screws.

7. The robotic voice announcement and intercom system of claim 6, wherein, The voice speaker is fastened to a voice speaker shell by bolts, and the voice speaker shell is fastened to the rear face shell assembly of the shell by pressure riveting, studs and nuts.

8. The robotic voice announcement and intercom system of claim 6, wherein, The loudspeaker is fastened to a side of the patrol outer assembly by half-head bolts.

9. The robotic voice announcement and intercom system of claim 6, wherein, The power amplifier board and the USB sound card are respectively fastened to a first fixed metal plate inside the shell by hexagonal studs and cross-slot disc head screws.

10. The robotic voice announcement and intercom system of claim 6, wherein, The Android board is fastened to a second fixed metal plate inside the shell by bolts. ​

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