Directional director and intelligent director system for AI intelligent exhibition hall

Abstract

The utility model discloses a directional director and an intelligent director system for an AI intelligent exhibition hall, and relates to the technical field of director equipment. The directional director comprises a sound gathering cover which is provided with a concave cavity with a downward opening; the directional sound equipment is arranged in the concave cavity and is fixedly arranged relative to the sound gathering cover; the Bluetooth beacon device and the sound gathering cover are relatively and fixedly arranged, the Bluetooth beacon device is electrically connected with the directional sound equipment, and the Bluetooth beacon device is configured to be in wireless communication connection with Bluetooth equipment and can control the directional sound equipment to be turned on according to a director starting instruction of the Bluetooth equipment during wireless communication connection. When the wireless communication connection is disconnected, the directional sound box is controlled to be turned off, and the Bluetooth device is one of a Bluetooth bracelet, a smart phone, smart glasses and a tablet personal computer. According to the utility model, the program directing work can be automatically and accurately completed, the manual operation burden is reduced, and the display efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of broadcasting equipment technology, and in particular to a directional broadcasting device and an intelligent broadcasting system for AI smart exhibition halls. Background Technology

[0002] In traditional showroom product broadcasting methods, the work relies heavily on manual operation. Broadcasters need to constantly monitor various scenes and activities within the showroom and manually switch between different video feeds. This manual workload is heavy, especially in large showrooms or complex exhibitions, posing a significant challenge to the broadcasters' energy and focus. Therefore, to better showcase product content in corporate showrooms, there is an urgent need for a more efficient and precise broadcasting system. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a directional broadcasting device and an intelligent broadcasting system for AI-powered smart exhibition halls, which can automatically and accurately complete broadcasting tasks, reduce the burden of manual operation, and effectively improve exhibition efficiency.

[0004] A first aspect of this utility model provides a directional broadcasting device, comprising:

[0005] A sound-absorbing cover, which has a downward-facing concave cavity;

[0006] A directional speaker is located within the cavity and is fixedly positioned relative to the sound-concentrating cover.

[0007] A Bluetooth beacon device is fixedly positioned relative to the sound-focusing cover. The Bluetooth beacon device is electrically connected to the directional speaker. The Bluetooth beacon device is configured to wirelessly connect with a Bluetooth device and control the directional speaker to turn on according to the broadcast start command of the Bluetooth device when the wireless communication connection is established. When the wireless communication connection is disconnected, it controls the directional speaker to turn off. The Bluetooth device is one of a Bluetooth bracelet, smartphone, smart glasses, and tablet computer.

[0008] The directional broadcasting device according to the first aspect of this utility model has at least the following beneficial effects: When the directional broadcasting device is applied to an AI smart exhibition hall, when the guide uses a Bluetooth device such as a Bluetooth bracelet, smartphone, smart glasses, or tablet to wirelessly connect with the Bluetooth beacon device in one of the directional broadcasting devices set up in one of the exhibition areas, the directional broadcasting device in that exhibition area can be activated, and the directional speaker can be controlled via the Bluetooth device for broadcasting. At this time, the sound-focusing cover and the directional speaker work together to form a directional sound area, ensuring that the audience can clearly hear the audio played by the guide and effectively avoiding mutual interference between the audio of the explanations in different exhibition areas. When the guide leaves the designated area with the Bluetooth device, the wireless communication connection between the Bluetooth device and the Bluetooth beacon device is disconnected, and the Bluetooth device can no longer control the directional speaker via the Bluetooth beacon device, causing the directional speaker to stop working.

[0009] This invention automatically establishes or disconnects the wireless communication connection between the Bluetooth device and the Bluetooth beacon device to automatically control the opening and closing of the directional broadcaster. This allows the directional broadcasters in each exhibition area of ​​the AI ​​smart exhibition hall to perform broadcasting work independently, automatically, and accurately without interfering with each other, effectively reducing the burden of manual operation. Moreover, the broadcasting content can be quickly switched between each exhibition area, ultimately improving the exhibition efficiency.

[0010] In some embodiments of this utility model, the directional transmitter further includes a downlight, which is disposed in the cavity and fixedly positioned relative to the sound-focusing cover. The downlight is located below the directional speaker and the Bluetooth beacon device, with its illumination surface facing downwards. The downlight is electrically connected to the Bluetooth beacon device, which is further configured to control the downlight to turn on according to a light activation command from a Bluetooth device when a wireless communication connection is established, and to control the downlight to turn off when the wireless communication connection is disconnected.

[0011] In some embodiments of this utility model, the directional transmitter further includes a support frame, which is connected to the sound-focusing cover. The directional speaker, the Bluetooth beacon device, and the downlight are mounted on the support frame; and / or, the downlight, the directional speaker, and the sound-focusing cover are coaxially arranged, and the sound-focusing cover is hemispherical.

[0012] In some embodiments of this utility model, the sound outlet of the directional speaker is positioned downwards.

[0013] In some embodiments of this utility model, the Bluetooth beacon device is disposed on the upper surface of the directional speaker.

[0014] In some embodiments of this utility model, the sound outlet of the directional speaker is positioned upwards.

[0015] In some embodiments of this utility model, the Bluetooth beacon device is disposed on the lower surface of the directional speaker.

[0016] A second aspect of this utility model provides an intelligent broadcasting system for AI-powered smart exhibition halls, comprising:

[0017] Bluetooth devices, which are a type of Bluetooth wristband, smartphone, smart glasses and tablet, and are used by tour guides;

[0018] As described in any of the first aspect embodiments, a directional broadcaster is provided, and is configured to correspond one-to-one with a display area. The directional broadcaster is configured to wirelessly connect with the Bluetooth device when the Bluetooth device is located within a designated area of ​​the corresponding display area.

[0019] The intelligent broadcasting system for AI-powered smart exhibition halls according to a second aspect embodiment of this utility model has at least the following beneficial effects: When a guide wearing a Bluetooth device enters an exhibition area of ​​the AI-powered smart exhibition hall, a wireless communication connection is automatically established between the Bluetooth device and the Bluetooth beacon device. This activates the directional broadcasting system for that exhibition area and controls the directional speakers to begin broadcasting, ensuring that the audience in that exhibition area can clearly hear the broadcast content emitted by the directional speakers. When switching from one exhibition area to the next, the guide's Bluetooth device disconnects from the Bluetooth beacon device in the previous exhibition area and establishes a wireless communication connection with the Bluetooth beacon device in the next exhibition area. This allows for rapid switching of broadcast content between exhibition areas and enables automatic and accurate broadcasting, thereby improving exhibition efficiency.

[0020] In some embodiments of this utility model, the intelligent broadcasting system for AI smart exhibition halls further includes a sound recording device for use by the tour guide. The sound recording device is wirelessly connected to the Bluetooth device or the Bluetooth beacon device, and the sound recording device is configured to transmit the collected audio data to the directional speaker via the Bluetooth beacon device.

[0021] In some embodiments of this utility model, the intelligent broadcasting system for AI smart exhibition halls further includes simultaneous interpretation headsets for audience use, the simultaneous interpretation headsets being configured to translate the sounds emitted by the directional speakers, or the simultaneous interpretation headsets being wirelessly connected to the Bluetooth beacon device, and the simultaneous interpretation headsets being configured to translate audio data from the Bluetooth beacon device.

[0022] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0023] Figure 1 This is an exploded view of the structure of a directional broadcasting device according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of a directional broadcasting device according to an embodiment of the present invention;

[0025] Figure 3 This is a structural schematic diagram of an intelligent broadcasting system for AI-powered smart exhibition halls, provided according to an embodiment of the present invention.

[0026] Reference numerals: 100, sound-focusing cover; 110, cavity; 200, Bluetooth beacon device; 300, directional speaker; 400, downlight; 510, boom; 520, first fixing plate; 530, connecting rod; 540, second fixing plate. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The following is for reference. Figures 1 to 3 This invention describes a directional broadcasting device and an intelligent broadcasting system for AI smart exhibition halls, according to embodiments of the present invention.

[0031] like Figures 1 to 3 As shown, the directional broadcasting device according to the first aspect of this utility model can be applied to exhibition halls, such as corporate exhibition halls, to complete the broadcasting work for exhibition activities. The directional broadcasting device of this embodiment can automatically and accurately complete the broadcasting work, reducing the burden of manual operation and effectively improving the display efficiency of corporate products or technologies.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the structure of the directional broadcaster includes a sound-focusing cover 100, a directional speaker 300, and a Bluetooth beacon device 200.

[0033] The sound-focusing cover 100 has a downward-facing cavity 110, which provides a mounting position for the directional speaker 300. It is understood that the sound-focusing cover 100 can be fixedly installed in the display area of ​​the AI ​​smart exhibition hall using a bracket, such as by mounting it on the ceiling. The function of the sound-focusing cover 100 is to focus sound through narrow angles, ensuring that the playback sounds in different display areas do not interfere with each other. In this embodiment, the sound-focusing cover 100 is hemispherical, with its central axis extending vertically, and the cavity 110 is hemispherical in shape. The size of the cavity 110 can be designed according to actual conditions and is not specifically limited here, as long as it can accommodate the directional speaker 300 or the directional speaker 300 and the Bluetooth beacon device 200.

[0034] The directional speaker 300 is housed within the cavity 110 of the sound-focusing enclosure 100. The Bluetooth beacon device 200 can be housed either within or outside the cavity 110 of the sound-focusing enclosure 100. Both the directional speaker 300 and the Bluetooth beacon device 200 are fixedly positioned relative to the sound-focusing enclosure 100. Specifically, the directional transmitter also includes a support frame, which is fixedly connected to the sound-focusing enclosure 100. Both the directional speaker 300 and the Bluetooth beacon device 200 are located within the cavity 110 of the sound-focusing enclosure 100 and are mounted on the support frame. Furthermore, the directional speaker 300 and the sound-focusing enclosure 100 are coaxially aligned. In this configuration, the sound-focusing enclosure 100 provides a degree of protection for the directional speaker 300 and the Bluetooth beacon device 200, preventing dust accumulation and damage from collisions with external objects.

[0035] Understandably, once the sound-focusing enclosure 100 is fixedly installed, the support frame provides mounting positions for the directional speaker 300 and the Bluetooth beacon device 200. The structure and shape of the support frame are not limited. Alternatively, the sound-focusing enclosure 100 can also be fixedly installed using the support frame, in which case the support frame extends through the cavity 110 of the sound-focusing enclosure 100 both inside and out.

[0036] The Directional Speaker 300 is an audio device used for indoor sound reinforcement that precisely controls the direction and range of sound propagation. It utilizes the non-linear interaction of ultrasound to achieve directional sound propagation, ensuring that sound is audible only within a specific area. The Directional Speaker 300 focuses sound into a straight-line beam, effectively preventing sound spillover, improving sound clarity, and significantly reducing noise pollution to the external environment, thus enhancing the audience's auditory experience.

[0037] In some examples, such as Figure 1 and Figure 2 As shown, the sound outlet of the directional speaker 300 faces downwards, allowing it to transmit sound downwards. Furthermore, a Bluetooth beacon device 200 is located on the upper surface of the directional speaker 300. Specifically, the Bluetooth beacon device 200 can be fixed to the directional speaker 300 by adhesive bonding or bolt connection.

[0038] Of course, it is possible that in other examples, the sound outlet of the directional speaker 300 is positioned upwards, while the Bluetooth beacon device 200 is located on the lower surface of the directional speaker 300.

[0039] The Bluetooth beacon device 200 is electrically connected to the directional speaker 300 via a control line. The Bluetooth beacon device 200 is configured to wirelessly connect with a Bluetooth device via Bluetooth, and to control the directional speaker 300 to turn on according to the Bluetooth device's start command when the wireless communication connection is established, and to control the directional speaker 300 to turn off when the wireless communication connection is disconnected. The Bluetooth device is one of a Bluetooth bracelet, smartphone, smart glasses, or tablet computer.

[0040] Understandably, Bluetooth beacons are a highly practical wireless technology that enables communication and interaction between different devices. The Bluetooth beacon device 200 has a control function, receiving control commands from Bluetooth devices to control the operating status of the directional speaker 300. The transmission strength of the Bluetooth beacon device 200 is adjustable, changing its coverage area. The Bluetooth beacon device 200 has low power consumption and can be battery-powered. The directional speaker 300's power cord can be connected to mains power. Alternatively, a rechargeable battery can be used to power the directional speaker 300. When a guide enters a specific area of ​​the exhibition area, such as the explanation area, the Bluetooth device automatically establishes a wireless communication connection with the Bluetooth beacon device 200 in that area. This allows the guide to send a director's start command to the Bluetooth beacon device 200 via the Bluetooth device. Upon receiving the command, the Bluetooth beacon device 200 controls the directional speaker 300 to start and play audio according to the preset content within the device.

[0041] When audio playback is not required, the guide can input a stop command via Bluetooth, which will cause the Bluetooth beacon device 200 to control the directional speaker 300 to stop working upon receiving the command. Furthermore, when the Bluetooth device follows the guide out of a specific area of ​​the exhibition area, the wireless communication connection between the Bluetooth device and the Bluetooth beacon device 200 is lost, and the Bluetooth beacon device 200 will stop the audio playback from the directional speaker 300.

[0042] When the directional broadcasting device provided in the first aspect of this utility model is applied to an AI smart exhibition hall, when the guide uses a Bluetooth device such as a Bluetooth bracelet, smartphone, smart glasses, or tablet to wirelessly connect with the Bluetooth beacon device 200 in one of the directional broadcasting devices set up in one of the exhibition areas, the directional broadcasting device in that exhibition area can be activated, and the directional speaker 300 can be controlled via the Bluetooth device for broadcasting. At this time, the sound-focusing cover 100 and the directional speaker 300 cooperate to form a directional sound area, ensuring that the audience can clearly hear the audio played by the guide and effectively avoiding mutual interference between the audio of the explanations in different exhibition areas. When the guide leaves the designated area with the Bluetooth device, the wireless communication connection between the Bluetooth device and the Bluetooth beacon device 200 is disconnected, and the Bluetooth device can no longer control the directional speaker 300 via the Bluetooth beacon device 200, causing the directional speaker 300 to stop working.

[0043] This invention automatically establishes or disconnects the wireless communication connection between the Bluetooth device and the Bluetooth beacon device 200 to automatically control the opening and closing of the directional broadcasters. This allows the directional broadcasters in each exhibition area of ​​the AI ​​smart exhibition hall to perform broadcasting work independently, automatically, and accurately without interfering with each other, effectively reducing the burden of manual operation. Moreover, the broadcasting content can be quickly switched between each exhibition area, ultimately improving the exhibition efficiency.

[0044] In some embodiments, such as Figures 1 to 3 As shown, the structure of the directional transmitter also includes a downlight 400. The downlight 400 is disposed within the cavity 110 of the sound-focusing cover 100, and is fixedly positioned relative to the sound-focusing cover 100. Specifically, the downlight 400, the directional speaker 300, and the Bluetooth beacon device 200 are all mounted on a support frame, making them fixed relative to the sound-focusing cover 100 and the support frame. The downlight 400, the directional speaker 300, and the sound-focusing cover 100 are coaxially arranged. Furthermore, the downlight 400 is located below the directional speaker 300 and the Bluetooth beacon device 200, with its illumination surface facing downwards.

[0045] Understandably, the directional speaker is tilted so that the downlight 400 can illuminate the products in the display area, improving the viewing experience. The downlight 400's wiring is connected to the mains power supply, just like the directional speaker 300's wiring.

[0046] The downlight 400 is electrically connected to the Bluetooth beacon device 200 via a control line. The Bluetooth beacon device 200 is also configured to control the downlight 400 to turn on according to the light-start command of the Bluetooth device when a wireless communication connection is established, and to control the downlight 400 to turn off when the wireless communication connection is disconnected.

[0047] Understandably, after establishing a wireless communication connection between the Bluetooth device and the Bluetooth beacon device 200, the guide can input a light-start command via the Bluetooth device. Upon receiving the command, the Bluetooth beacon device 200 will control the downlight 400 to turn on and illuminate the products in the display area. When the wireless communication connection between the Bluetooth device and the Bluetooth beacon device 200 is broken, the Bluetooth beacon device 200 will control the downlight 400 to turn off. Alternatively, the guide can input a light-off command via the Bluetooth device to stop the downlight 400 from operating under the control of the Bluetooth beacon device 200. The downlight 400 can be a color-temperature adjustable lamp, allowing the guide to change its color temperature via the Bluetooth device.

[0048] like Figure 1 and Figure 2 As shown, the support frame includes a hanging rod 510, a first fixing plate 520, a second fixing plate 540, and connecting rods 530. The first fixing plate 520 is located above the second fixing plate 540. Multiple sets of connecting rods 530 are arranged between the first fixing plate 520 and the second fixing plate 540. Each set of connecting rods 530 includes multiple connecting rods 530, and the opposite ends of the connecting rods 530 can be fixedly connected to the first fixing plate 520 and the second fixing plate 540 respectively by screws. The second fixing plate 540 is annular so that the downlight 400 can be mounted on the second fixing plate 540 by bolts. The outer periphery of the directional speaker 300 is fixedly connected to the multiple sets of connecting rods 530. The first fixing plate 520, connecting rods 530, and second fixing plate 540 are all located within the cavity 110 of the sound-focusing cover 100. The Bluetooth beacon device 200 is positioned above the directional speaker 300.

[0049] The sound-concentrating cover 100 has a perforation at its center. A suspension rod 510 extends vertically and passes through the perforation to be fixedly connected to the first fixing plate 520. The upper end of the suspension rod 510 can be fixedly connected to the ceiling or a bracket. The sound-concentrating cover 100 is supported by the first fixing plate 520.

[0050] like Figures 1 to 3 As shown, the intelligent broadcasting system for AI smart exhibition hall according to the second aspect embodiment of the present invention includes a Bluetooth device and a directional broadcasting device as described in the first aspect embodiment.

[0051] The Bluetooth device is one of a Bluetooth bracelet, smartphone, smart glasses, and tablet computer, and is intended for use by the tour guide. In this embodiment, the Bluetooth device is a Bluetooth bracelet that can be worn on the tour guide's wrist.

[0052] At least one directional broadcaster is provided, and each directional broadcaster is configured to correspond one-to-one with a display area. The Bluetooth beacon device 200 within the directional broadcaster is capable of wirelessly connecting to a Bluetooth device. The directional broadcaster is configured to wirelessly connect to a Bluetooth device when the Bluetooth device is located within a designated area of ​​the corresponding display area.

[0053] Understandably, the number of directional broadcasters is determined based on the number of exhibition areas, and no specific limit is set here. When a guide enters an exhibition area in the AI ​​smart exhibition hall with a Bluetooth device, a wireless communication connection is automatically established between the device and the Bluetooth beacon device 200. This activates the directional broadcaster for that exhibition area, and the Bluetooth device controls the directional speaker 300 to begin broadcasting, ensuring that the audience in that exhibition area can clearly hear the broadcast content emitted by the directional speaker 300. When switching from one exhibition area to the next, the guide's Bluetooth device disconnects from the Bluetooth beacon device 200 in the previous area and establishes a wireless communication connection with the Bluetooth beacon device 200 in the next area. This allows for rapid switching of broadcast content between exhibition areas and enables automatic and accurate broadcasting, improving exhibition efficiency.

[0054] In some embodiments, such as Figure 3 As shown, the intelligent broadcasting system for the AI-powered smart exhibition hall also includes a microphone. This microphone is used by the tour guide and is wirelessly connected to a Bluetooth device or Bluetooth beacon device 200 via Bluetooth. The microphone is configured to transmit collected audio data to the directional speaker 300 via the Bluetooth beacon device 200.

[0055] Understandably, the recording device can be a microphone or an earphone with a built-in microphone. The guide can use the recording device to give their presentation. For example, the guide can use a Bluetooth device and Bluetooth beacon device 200 to activate the directional speaker 300 and switch its operating mode. Then, the guide can use the recording device to give their presentation. The recording device will capture the guide's audio and transmit the captured audio data to the directional speaker 300 via the Bluetooth device and Bluetooth beacon device 200, or directly via the Bluetooth beacon device 200, allowing the directional speaker 300 to play the audio.

[0056] Of course, in other embodiments, after the directional sound system 300 finishes its automatic broadcast, the narrator can play supplementary content by using the sound recording device and the directional sound system 300.

[0057] In some embodiments, such as Figure 3 As shown, the intelligent broadcasting system for the AI-powered smart exhibition hall also includes simultaneous interpretation headsets. These headsets are for audience use, and the number of headsets is not limited to one. Furthermore, the headsets are configured to translate sounds emitted by the directional speaker 300, or to wirelessly connect with the Bluetooth beacon device 200, and to translate audio data from the Bluetooth beacon device 200.

[0058] Understandably, simultaneous interpretation headsets are primarily intended for use by foreign audiences. Foreign viewers can use these headsets to translate the broadcast content into any language they choose, ensuring they can understand it. In some examples, the headsets can collect the broadcast content emitted by the directional speaker 300 and translate it into the wearer's chosen language. In other examples, the headsets wirelessly connect to a Bluetooth beacon device 200 via Bluetooth. The Bluetooth beacon device 200 transmits audio data corresponding to the broadcast content to the headsets, and through translation processing, foreign viewers can understand the broadcast content through the headsets.

[0059] In the use of the intelligent broadcasting system of the AI ​​intelligent exhibition hall according to the second aspect of this utility model, the AI ​​intelligent exhibition hall is divided into multiple exhibition areas according to the product display and visitor route. Each exhibition area is equipped with a directional broadcasting device in the intelligent broadcasting system. Each directional broadcasting device can work independently and without interference, ensuring that every visitor in each exhibition area can clearly hear the audio played by the guide. For foreign visitors, simultaneous interpretation headphones can be used to provide appropriate language translation for the played audio.

[0060] When the guide leads the audience into one of the exhibition areas, the Bluetooth device on the guide in a specific area, such as the explanation area, can automatically connect to the directional broadcaster in that exhibition area, activating the directional broadcaster. Then, the guide can use the Bluetooth device to control the directional speaker 300 to start the guided explanation content and control the downlight 400 to emit light towards the products in the exhibition area.

[0061] When the guide leaves the specific area for a certain period of time, such as 20 seconds (i.e., the Bluetooth device is no longer within the signal connection range of the Bluetooth beacon device 200), the Bluetooth device on the guide will disconnect from the Bluetooth beacon device 200 in that exhibition area, causing the Bluetooth beacon device 200 to be in a disconnected state and turning off the downlights 400 in that exhibition area, preventing the Bluetooth device from controlling the directional broadcaster in that exhibition area. When the guide enters a specific area of ​​another exhibition area (i.e., the Bluetooth device enters the signal connection range of the Bluetooth beacon device 200), the Bluetooth beacon device 200 will be in a connected state, and the directional broadcaster can be controlled by the Bluetooth device to control the broadcast.

[0062] Each exhibition area can use a fade-in / fade-out transition method to achieve a seamless and smooth transition between the content being explained, and can achieve the effect of "the sound and lights turn on when the person arrives, and the sound and lights turn off when the person leaves, with the sound and light following the person like a shadow."

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A directional broadcasting device, characterized in that, include: A sound-absorbing cover, which has a downward-facing concave cavity; A directional speaker is located within the cavity and is fixedly positioned relative to the sound-concentrating cover. A Bluetooth beacon device is fixedly positioned relative to the sound-focusing cover. The Bluetooth beacon device is electrically connected to the directional speaker. The Bluetooth beacon device is configured to wirelessly connect with a Bluetooth device and control the directional speaker to turn on according to the broadcast start command of the Bluetooth device when the wireless communication connection is established. When the wireless communication connection is disconnected, it controls the directional speaker to turn off. The Bluetooth device is one of a Bluetooth bracelet, smartphone, smart glasses, and tablet computer.

2. The directional broadcasting device according to claim 1, characterized in that, It also includes a downlight, which is disposed in the cavity and fixedly positioned relative to the sound-focusing cover. The downlight is located below the directional speaker and the Bluetooth beacon device, with its illumination surface facing downwards. The downlight is electrically connected to the Bluetooth beacon device, which is also configured to control the downlight to turn on according to a light activation command from the Bluetooth device when a wireless communication connection is established, and to control the downlight to turn off when the wireless communication connection is disconnected.

3. The directional broadcasting device according to claim 2, characterized in that, It also includes a support frame connected to the sound-focusing cover, on which the directional speaker, the Bluetooth beacon device, and the downlight are mounted; and / or, the downlight, the directional speaker, and the sound-focusing cover are coaxially arranged, and the sound-focusing cover is hemispherical.

4. The directional broadcasting device according to any one of claims 1 to 3, characterized in that, The sound outlet of the directional speaker is positioned downwards.

5. The directional broadcasting device according to claim 4, characterized in that, The Bluetooth beacon device is located on the upper surface of the directional speaker.

6. The directional broadcasting device according to any one of claims 1 to 3, characterized in that, The sound outlet of the directional speaker is positioned facing upwards.

7. The directional broadcasting device according to claim 6, characterized in that, The Bluetooth beacon device is located on the lower surface of the directional speaker.

8. An intelligent broadcasting system for AI-powered smart exhibition halls, characterized in that: include: Bluetooth devices, which are a type of Bluetooth wristband, smartphone, smart glasses and tablet, and are used by tour guides; The directional broadcaster as described in any one of claims 1 to 7 is provided with at least one and is configured to correspond one-to-one with the display area, the directional broadcaster being configured to wirelessly connect with the Bluetooth device when the Bluetooth device is located within a designated area of ​​the corresponding display area.

9. The intelligent broadcasting system for AI-powered smart exhibition halls according to claim 8, characterized in that, It also includes a sound recording device for use by the tour guide, the sound recording device being wirelessly connected to the Bluetooth device or the Bluetooth beacon device, the sound recording device being configured to transmit collected audio data to the directional speaker via the Bluetooth beacon device.

10. The intelligent broadcasting system for AI-powered smart exhibition halls according to claim 8 or 9, characterized in that, It also includes simultaneous interpretation headsets for use by audience members, the simultaneous interpretation headsets being configured to translate the sounds emitted by the directional speakers, or the simultaneous interpretation headsets being wirelessly connected to the Bluetooth beacon device and configured to translate audio data from the Bluetooth beacon device.

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