recorder / player

Abstract

The application relates to a recording and broadcasting machine and relates to the technical field of recording and broadcasting equipment. The recording and broadcasting machine comprises a machine shell, a display screen, a first antenna module and a second antenna module. The machine shell comprises a first accommodating cavity. The display screen is electrically connected with the machine shell and comprises a frame. The first antenna module is located in the first accommodating cavity. The first antenna module comprises at least two groups of first antennas and a reflection member. The reflection member is used for reflecting electromagnetic wave signals. The reflection member and inner wall surfaces of the machine shell surround to form a reflection cavity. The first antennas are located in the reflection cavity. The part of the side plate of the machine shell for surrounding the reflection cavity is a non-metal material. At least one of the other inner wall surfaces for surrounding the reflection cavity is a metal material. The second antenna module comprises at least two groups of second antennas. The second antennas are arranged in at least one of the machine shell and the frame of the display screen. The recording and broadcasting machine is favorable for improving the effect of simultaneously receiving video signals and audio signals.

Description

Technical Field

[0001] This application relates to the field of recording and broadcasting equipment technology, and in particular to a recording and broadcasting machine. Background Technology

[0002] Recording machines need to receive real-time video feeds from cameras in different environments, as well as real-time audio signals from microphones in different environments. Furthermore, the transmission distance varies in different environments; in some environments, such as outdoor scenes, the recording machine needs to cover a long distance for signal transmission. Therefore, it is necessary to increase the antenna gain of the recording machine. However, the antennas used in current recording machines to receive video and audio signals are externally mounted. Because the relative position of the antenna to the camera or microphone cannot be determined, even with increased antenna gain, it is impossible to guarantee that the antenna's radiation direction covers both the camera and microphone during signal reception. Therefore, current recording machines suffer from poor performance in simultaneously receiving video and audio signals. Summary of the Invention

[0003] Therefore, it is necessary to provide a recording and broadcasting machine that addresses the problem of poor performance in receiving both video and audio signals simultaneously in current recording and broadcasting machines.

[0004] A recording and playback machine, comprising:

[0005] The housing includes a first receiving cavity;

[0006] The display screen is electrically connected to the housing, and the display screen includes a bezel;

[0007] The first antenna module is located inside the first accommodating cavity; the first antenna module includes at least two sets of first antennas and reflectors, the reflectors being used to reflect electromagnetic wave signals; the reflectors and the inner wall surface of the housing form a reflecting cavity, and the first antennas are located inside the reflecting cavity; the portion of the side plate of the housing used to enclose the reflecting cavity is made of non-metallic material; and at least one of the other inner wall surfaces of the reflecting cavity is made of metallic material;

[0008] The second antenna module includes at least two sets of second antennas; the second antennas are disposed in at least one of the housing and the bezel of the display screen.

[0009] In one embodiment, the housing further includes a bottom plate and a top plate disposed opposite to each other; a side plate is disposed between the bottom plate and the top plate, and the bottom plate, the top plate and the side plate surround to form a first receiving cavity;

[0010] The reflector, together with the top plate, bottom plate and side plate, forms a reflective cavity, and at least the part of the top plate used to enclose the reflective cavity is made of non-metallic material.

[0011] The display screen is located on the top panel on the side furthest from the bottom panel.

[0012] In one embodiment, the housing further includes a second receiving cavity;

[0013] The second receiving cavity is formed on the side surface of the top plate away from the bottom plate, and the second receiving cavity is located in the edge area of ​​the top plate;

[0014] The second antenna is located inside the second accommodating cavity, and the radiation direction of the second antenna is from the center area of ​​the top plate to the edge area;

[0015] In the panel that encloses the second receiving cavity, the panel located on the edge of the second receiving cavity facing the top plate is made of non-metallic material, and at least one of the other panels is made of metallic material.

[0016] In one embodiment, at least two second antenna modules are spaced apart in the second accommodating cavity; or, at least two second antenna modules are spaced apart in the bezel of the display screen.

[0017] In one embodiment, the side plate includes a bend, and a reflector is provided in a one-to-one correspondence with the bend, and the reflector, the side plate forming the bend, the top plate and the bottom plate surround a reflective cavity.

[0018] In one embodiment, the orthographic projection of the reflector onto the base plate is arc-shaped, with the center of the arc located on the side of the reflector furthest from the center point of the base plate; or,

[0019] The orthographic projection of the reflector onto the base plate is a polygonal shape, which is composed of at least two intersecting polygonal lines. The included angle between two adjacent polygonal lines is a right angle or an obtuse angle, and the included angle is formed on the side of the reflector away from the center point of the base plate.

[0020] In one embodiment, the sum of the radiation directions of the plurality of first antennas is greater than or equal to 360 degrees;

[0021] The sum of the radiation directions of multiple second antennas is greater than or equal to 360 degrees.

[0022] In one embodiment, the first antenna module is used to transmit one of a video signal and an audio signal;

[0023] The second antenna module is used to transmit either the video signal or the audio signal.

[0024] In one embodiment, the recording and broadcasting machine further includes a power divider and an radio frequency chip; the power divider includes a first switching switch and a second switching switch;

[0025] The first switching switch is connected to multiple first antennas and radio frequency chips respectively, and the radio frequency chips transmit signals to the first antennas through the first switching switch;

[0026] The second switch connects to multiple second antennas and radio frequency chips respectively, and the radio frequency chips transmit signals to the second antennas through the second switch.

[0027] In one embodiment, the radio frequency chip is used to read the signal transmission and reception strength of each first antenna and each second antenna based on a preset period, determine the first antenna with the strongest signal transmission and reception strength among the first antennas, and control the first switching switch to switch to the first antenna with the strongest signal transmission and reception strength for signal transmission and reception; determine the second antenna with the strongest signal transmission and reception strength among the second antennas, and control the second switching switch to switch to the second antenna with the strongest signal transmission and reception strength for signal transmission and reception.

[0028] The recording and broadcasting machine provided in this application includes a housing, a display screen, a first antenna module, and a second antenna module. The housing includes a first accommodating cavity; the display screen is electrically connected to the housing and includes a frame; the first antenna module is located inside the first accommodating cavity, and the second antenna module includes at least two sets of second antennas; the second antennas are disposed in at least one of the frames of the housing and the display screen. This allows both the first and second antenna modules to be built into the recording and broadcasting machine, reducing its size and manufacturing cost, lowering the probability of antenna module damage during use, improving the machine's aesthetics, and eliminating the need for additional antenna module installation, thus enhancing ease of use. The first antenna module includes at least two sets of first antennas and reflectors. The reflectors are used to reflect electromagnetic wave signals. The reflectors and the inner wall of the housing form a reflective cavity, and the first antennas are located inside the reflective cavity. The part of the side plate of the housing that surrounds the reflective cavity is made of non-metallic material, and at least one of the other inner wall surfaces of the reflective cavity is made of metallic material. The electromagnetic wave signals radiated by the first antennas can be reflected by the metallic part of the reflective cavity. The reflected electromagnetic wave signals can be transmitted out of the recorder through the side plate of the housing that surrounds the reflective cavity, so as to realize the interaction of electromagnetic wave signals with other electronic devices. The setting of the reflectors enhances the strength of the electromagnetic wave signals transmitted out of the recorder, which is beneficial to improving the signal interaction effect between the first antenna module and external electronic devices that interact through electromagnetic wave signals. Furthermore, the setup of two sets of antenna modules allows each set to interact with different types of electronic devices as needed. For example, different sets of antenna modules can be used to receive video and audio signals respectively, and to transmit video and audio signals with different signal frequency bands separately, thereby improving the recording and broadcasting equipment's ability to simultaneously receive video and audio signals. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a recording and broadcasting machine in one embodiment;

[0030] Figure 2 This is a schematic diagram of the recording and broadcasting machine in another embodiment;

[0031] Figure 3 This is a schematic diagram of the structure of the reflector in one embodiment;

[0032] Figure 4 This is a schematic diagram of the reflector in another embodiment;

[0033] Figure 5 This is a schematic diagram of the internal structure of the first accommodating cavity of the housing in one embodiment. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0040] In related technologies, recording and broadcasting machines are typically used in environments such as classrooms and playgrounds. They utilize an external rod antenna as a communication antenna to transmit information to other devices, such as transmitting and receiving voice information from microphones or video footage from cameras. The external rod antenna is usually quite large, increasing the overall size of the recording and broadcasting machine. Users also need to manually assemble the antenna, making the machine inconvenient to use and carry. Furthermore, the external rod antenna is easily damaged by collisions with other objects. Antenna gain is generally related to the antenna's radiation angle; a larger radiation angle usually results in lower gain. Rod antennas in related technologies are typically omnidirectional, meaning they transmit and receive signals 360 degrees in the horizontal plane. Therefore, rod antennas have relatively low gain, typically only about 3dBi to 5dBi (power gain), resulting in poor long-distance information transmission capabilities for the recording and broadcasting machine. Furthermore, in related technologies, the external antenna of the recording and broadcasting machine must receive both audio signals from the microphone and video signals from the camera. These two signals typically operate on different frequency bands, making it difficult for the external antenna to achieve gain enhancement across both bands. Therefore, recording and broadcasting machines using these technologies suffer from poor performance when simultaneously receiving both video and audio signals.

[0041] Based on the aforementioned problems of recording and broadcasting machines in related technologies, it is necessary to provide a recording and broadcasting machine that can simultaneously receive video and audio signals with good signal reception performance, and to avoid the problem of external antennas as much as possible, so as to reduce the antenna damage rate and extend the service life of the recording and broadcasting machine.

[0042] See Figure 1 , Figure 1 The diagram shows a structural schematic of a recording and broadcasting machine according to an embodiment of the present application. The recording and broadcasting machine provided in an embodiment of the present application includes: a housing 11, a display screen 12, a first antenna module 13, and a second antenna module 14.

[0043] The housing 11 includes a first accommodating cavity 111; the display screen 12 is electrically connected to the housing 11 and includes a frame 121; the first antenna module 13 is located inside the first accommodating cavity 111; the first antenna module 13 includes at least two sets of first antennas 1311 and reflectors 1312, the reflectors 1312 being used to reflect electromagnetic wave signals; the reflectors 1312 and the inner wall of the housing 11 enclose a reflecting cavity 131, and the first antennas 1311 are located inside the reflecting cavity 131; the portion of the side plate 15 of the housing 11 used to enclose the reflecting cavity 131 is made of non-metallic material; and at least one of the other inner wall surfaces of the reflecting cavity 131 is made of metallic material; the second antenna module 14 includes at least two sets of second antennas 1411; the second antennas 1411 are disposed in at least one of the frame 121 of the housing 11 and the display screen 12.

[0044] It is understandable that the first antenna 1311 and the second antenna 1411 have signal transmission and reception functions. The recording and broadcasting components in the recording and broadcasting machine can transmit signals wirelessly through the first antenna 1311 and the second antenna 1411, thereby realizing information interaction with other electronic devices. The first antenna 1311 can be a PCB antenna, a steel sheet antenna, a rod antenna, or other types of antennas, etc. The second antenna 1411 can be a monopole antenna, a dipole antenna, an antenna integrating a monopole antenna and a Yagi antenna, or an inverted F antenna, etc.

[0045] Specifically, the reflector 1312 provided in this application is used to reflect electromagnetic wave signals transmitted and received by the first antenna 1311 in the first antenna module 13. It is understood that the side of the reflector 1312 closest to the first antenna 1311 is the reflecting surface, used to reflect electromagnetic wave signals. The material used to manufacture the reflector 1312 can be a metallic material with strong electromagnetic wave signal reflection capabilities, such as copper, aluminum, iron, copper alloys, aluminum alloys, iron alloys, or other metallic materials. Furthermore, at least a portion of the side plate 15 of the housing 11 that forms the reflecting cavity 131 is made of a non-metallic material. Non-metallic materials have weaker blocking and reflection capabilities for electromagnetic wave signals, or no blocking and reflection capabilities at all, allowing the electromagnetic wave signals reflected by the reflector 1312, as well as the electromagnetic wave signals transmitted and received by the first antenna 1311, to interact with external devices through the non-metallic side plate 15 portion. It should be noted that the reflected electromagnetic wave signal will coherently superimpose with other electromagnetic wave signals radiated by the first antenna 1311 to form a directional radiation beam, which is transmitted to the outside of the housing 11. This is beneficial to improving the gain of the first antenna 1311 in the direction of radiation beam transmission. Furthermore, setting at least two first antenna modules 13 can improve the gain of the first antenna module 13 in multiple radiation directions.

[0046] Specifically, this application further provides a second antenna module 14 in the housing 11 and / or in the bezel 121 of the display screen 12, thereby increasing the types of antenna modules in the recording and broadcasting machine and also increasing the number of antenna modules provided in the recording and broadcasting machine. The first antenna module 13 and the second antenna module 14 can be two types of antenna modules. When required, the two types of antenna modules can interact with different types of electronic devices. For example, different types of antenna modules can be used to receive video signals and audio signals respectively. That is, different types of antenna modules are used to transmit video signals and audio signals with different signal frequency bands separately, which is beneficial to improving the effect of the recording and broadcasting machine in receiving video signals and audio signals at the same time.

[0047] Regarding the selection of materials for the various inner wall surfaces surrounding the reflective cavity 131, this application provides an alternative embodiment: the portion of the side plate 15 of the housing 11 forming the reflective cavity 131 is made of a non-metallic material, while the remaining portion forming the reflective cavity 131 is made of a metallic material. When the first antenna 1311 radiates, the electromagnetic wave signal is reflected and focused by the metallic portion forming the reflective cavity 131, and then transmitted to other electronic devices through the portion of the side plate 15 made of non-metallic material. It should be noted that, provided here, for each reflective cavity 131, only the portion of the side plate 15 of the housing 11 surrounding the reflective cavity 131 is made of a non-metallic material; this is merely an alternative embodiment provided by this application, and this application is not limited thereto.

[0048] The recording and broadcasting machine provided in this application includes a housing 11, a display screen 12, a first antenna module 13, and a second antenna module 14. The housing 11 includes a first accommodating cavity 111; the display screen 12 is electrically connected to the housing 11 and includes a frame 121; the first antenna module 13 is located inside the first accommodating cavity 111, and the second antenna module 14 includes at least two sets of second antennas 1411; the second antennas 1411 are disposed in at least one of the frame 121 of the housing 11 and the display screen 12, thus enabling both the first antenna module 13 and the second antenna module 14 to be built into the recording and broadcasting machine. This reduces the size of the recording and broadcasting machine and lowers manufacturing costs, which helps reduce the probability of antenna module damage during use. It also improves the aesthetics of the recording and broadcasting machine and eliminates the need for additional antenna module installation during use, thus enhancing the ease of use. The first antenna module 13 includes at least two sets of first antennas 1311 and reflectors 1312. The reflectors 1312 are used to reflect electromagnetic wave signals. The reflectors 1312 and the inner wall of the housing 11 form a reflective cavity 131, and the first antennas 1311 are located inside the reflective cavity 131. The part of the side plate 15 of the housing 11 used to surround the reflective cavity 131 is made of non-metallic material, and at least one of the other inner wall surfaces used to surround the reflective cavity is made of metallic material. The electromagnetic wave signals radiated by the first antennas 1311 can be reflected by the metallic part of the reflective cavity 131. The reflected electromagnetic wave signals can be transmitted out of the recorder through the part of the side plate 15 of the housing 11 that surrounds the reflective cavity 131, so as to realize the interaction of electromagnetic wave signals with other electronic devices. The setting of the reflectors 1312 enhances the strength of the electromagnetic wave signals transmitted out of the recorder, which is beneficial to improving the signal interaction effect between the first antenna module 13 and external electronic devices that interact through electromagnetic wave signals. Furthermore, the setup of two sets of antenna modules allows each set to interact with different types of electronic devices as needed. For example, different sets of antenna modules can be used to receive video and audio signals respectively, and to transmit video and audio signals with different signal frequency bands separately, thereby improving the recording and broadcasting equipment's ability to simultaneously receive video and audio signals.

[0049] See also Figure 1 In one embodiment, the housing 11 of the recording and broadcasting machine further includes a bottom plate 16 and a top plate 17 disposed opposite to each other.

[0050] The side plate 15 is disposed between the bottom plate 16 and the top plate 17, and the bottom plate 16, top plate 17, and side plate 15 together form a first accommodating cavity 111. The first accommodating cavity 111 is used to accommodate the first antenna module 13 and other hardware structures of the recording and broadcasting machine. The reflector 1312, together with the top plate 17, bottom plate 16, and side plate 15, forms a reflective cavity 131. Optionally, at least the portion of the top plate 17 used to enclose the reflective cavity 131 can be made of non-metallic material. This arrangement allows the electromagnetic wave signal radiated by the first antenna 1311 to be further transmitted outward through the portion of the top plate 17 that at least encloses the reflective cavity 131. This ensures that even when other devices that need to interact are located above the recording and broadcasting machine in the operating environment, they can still achieve good information interaction with the recording and broadcasting machine.

[0051] The display screen 12 is located on the top plate 17 away from the bottom plate 16. That is, during the use of the recording and broadcasting machine, the housing 11 can be located below the display screen 12. For example, the bottom plate 16 of the housing 11 can be used to contact a desktop. The display screen 12 can be used to display relevant information about the recording and broadcasting machine, such as video footage.

[0052] See also Figure 1 In one embodiment, the housing 11 further includes a second receiving cavity 112.

[0053] The second accommodating cavity 112 is formed on the side surface of the top plate 17 away from the bottom plate 16, and the second accommodating cavity 112 is located in the edge area of ​​the top plate 17. The second antenna 1411 is disposed in the second accommodating cavity 112, and the radiation direction of the second antenna 1411 is the direction from the center area of ​​the top plate 17 to the edge area.

[0054] Specifically, the edge region of the top plate 17 refers to the edge region along the extension direction of the plane on which the top plate 17 is located. It can be understood that the size of the second accommodating cavity 112 can be set to accommodate and fix the second antenna 1411. This application does not specifically limit whether the second accommodating cavity 112 surrounds the entire edge region of the top plate 17. For example, it can be selected that the second accommodating cavity 112 only surrounds a portion of the edge region of the top plate 17; for example, when the top plate 17 is rectangular, the second accommodating cavity 112 can be located only in the upper edge region, left edge region, and right edge region of the top plate 17.

[0055] It should be noted that although the second accommodating cavity 112 and the frame 121 in the attached drawings appear to be a thin plate structure, this is only for the clarity of the drawings and is not intended to limit the specific structure and style of the second accommodating cavity 112 and the frame 121. The specific structure of the second accommodating cavity 112 and the frame 121 can be, for example, a three-dimensional structure with an accommodating cavity, such as four cuboids surrounding to form the second accommodating cavity 112 and four cuboids surrounding to form the frame 121, so that the required antenna can be arranged in the accommodating cavity.

[0056] In this configuration, the bottom of the display screen 12 can be movably connected to the upper edge of the top plate 17 of the housing 11. During the use of the recording and broadcasting machine, the top of the display screen 12 rises from the lower edge of the top plate 17 toward the side of the top plate 17 away from the bottom plate 16. During the storage of the recording and broadcasting machine, the top of the display screen 12 moves closer to the lower edge of the top plate 17, thereby realizing the storage of the display screen 12 in the empty area formed by the second accommodating cavity 112. The display screen 12 is stored in the empty area formed by the second accommodating cavity 112 of the housing 11, that is, the surface of the top plate 17 away from the bottom plate 16, which helps to reduce the overall size of the recording and broadcasting machine and improve its portability.

[0057] In the panel surrounding the second accommodating cavity 112, the panel located on the edge of the second accommodating cavity 112 facing the top plate 17 can be made of a non-metallic material, while at least one of the other panels is made of a metallic material. This arrangement allows the metallic panel to reflect the electromagnetic wave signal radiated by the second antenna 1411, enabling the electromagnetic wave signal radiated by the second antenna 1411 to propagate to other electronic devices through the non-metallic panel, achieving good information interaction with other electronic devices. Furthermore, the other parts of the second accommodating cavity 112 can all be made of metallic materials. For example, if the side panel 15 surrounding the second accommodating cavity 112, located on the side of the second accommodating cavity 112 facing the center point of the top plate 17, is made of a metallic material, it can also have an effect similar to the aforementioned reflector 1312, which is beneficial for improving the gain of the second antenna 1411 disposed in the second accommodating cavity 112.

[0058] Combination Figure 2 As shown, Figure 2 A schematic diagram of the waveform recorder according to another embodiment of this application is shown. In one embodiment, such as... Figure 1 As shown, at least two second antenna modules 14 are spaced apart in the second accommodating cavity 112, which facilitates the integration of multiple second antenna modules 14 into the recording and broadcasting machine. This reduces the size of the recording and broadcasting machine while increasing the number of antennas installed within it, thereby enhancing the antenna-based interaction capabilities between the recording and broadcasting machine and external devices; or, as... Figure 2As shown, at least two second antenna modules 14 are spaced apart in the frame 121 of the display screen 12. This also enables multiple second antenna modules 14 to be built into the recording and broadcasting machine, reducing the size of the recording and broadcasting machine while increasing the number of antennas installed in the recording and broadcasting machine, thereby improving the antenna-based interaction capability between the recording and broadcasting machine and external devices.

[0059] Alternatively, a second antenna module 14 can be simultaneously installed in both the display screen 12 and the second accommodating cavity 112 to further increase the number of antennas installed in the recording and broadcasting machine, and further enhance the antenna-based interaction capability between the recording and broadcasting machine and external devices. The frame 121 of the display screen 12 also includes an accommodating cavity for the second antenna. The second antenna module 14 is installed in the accommodating cavity of the frame 121. The material of the plate surface portion of the accommodating cavity away from the center of the display screen 12 can be a non-metallic material, while the material of the remaining portion of the accommodating cavity can be a metallic material. This allows the electromagnetic waves of the second antenna 1411 to be reflected, focused, and radiated to other electronic devices outside the recording and broadcasting machine. It should be noted that the portion of the accommodating cavity of the frame 121 that can be made of a non-metallic material can be adjusted according to the radiation direction requirements of the second antenna 1411, and is not limited to the plate surface portion of the frame 121 away from the center of the display screen 12 as proposed in this application.

[0060] See also Figure 1 In one embodiment, the side plate 15 of the recording and broadcasting machine described in the above embodiment includes a bend 113, and the reflector 1312 is provided in a one-to-one correspondence with the bend 113. The reflector 1312, the side plate 15 forming the bend 113, the top plate 17 and the bottom plate 16 surround a reflective cavity 131.

[0061] It is understandable that when the housing 11 is a polyhedron, the angle 113 refers to the connection between two adjacent side plates 15 included in the housing 11. The housing 11 includes multiple angles 113. For example, the side plate 15 includes a first side plate 15 and a second side plate 15. The connection between the first side plate 15 and the second side plate 15 is an angle 113 of the housing 11. The first end of the reflector 1312 is connected to the first side plate 15, and the second end of the reflector 1312 is connected to the second side plate 15. The reflector 1312, the top plate 17, the bottom plate 16, the first side plate 15, and the second side plate 15 form a reflective cavity 131.

[0062] It should be noted that, for ease of placement, most of the electronic components of the recording and broadcasting machine are typically located in the central area within the first accommodating cavity 111. The corner areas where the housing 111 is folded are usually difficult to utilize. In this embodiment, by placing the reflector 1312 at the corner 113 of the housing 11, a reflective cavity 131 is formed using the corner area, thus fully utilizing the corner areas within the housing 11. This increases the utilization rate of the accommodating cavity within the housing 11 and allows the first antenna 1311 to be located away from the electronic components in the central area, preventing interference between the first antenna 1311 and other electronic components inside the recording and broadcasting machine. The housing 11 can be rectangular, cubic, tetrahedral, pentahedral, or other shapes.

[0063] Combination Figure 3 and Figure 4 , Figure 3 A schematic diagram of the structure of the reflector 1312 in one embodiment of this application is shown. Figure 4 A schematic diagram of the structure of the reflector 1312 according to another embodiment of this application is shown. In one embodiment, such as Figure 3 As shown, the orthographic projection of the reflector 1312 onto the base plate 16 is arc-shaped, with the center of the arc located on the side of the reflector 1312 away from the center point of the base plate 16. This can be understood as the side of the reflector 1312 near the first antenna 1311 concentrating the radiation direction of the first antenna 1311 within the arc range of the reflecting surface, thereby enhancing the gain of the first antenna 1311 and improving the signal reception effect of the recording device. Furthermore, the side of the reflector 1312 near the first antenna 1311 can form a concave structure, or have a signal focusing point similar to a concave surface, allowing the electromagnetic wave signal reflected by the reflector 1312 to be concentrated near the signal focusing point, thus making the radiation direction of the first antenna 1311 more concentrated, further enhancing the antenna gain of the first antenna 1311. Alternatively, as... Figure 4 The orthographic projection of the reflector 1312 onto the base plate 16 is a polygonal shape, consisting of at least two intersecting polygonal lines. The included angle between two adjacent polygonal lines is a right angle or an obtuse angle, formed on the side of the reflector 1312 away from the center point of the base plate 16. In this case, the side of the reflector 1312 near the first antenna 1311 can also reflect and focus the electromagnetic wave signal of the first antenna 1311 to enhance the gain of the first antenna 1311.

[0064] In one embodiment, the sum of the radiation directions of the plurality of first antennas 1311 of the recording and broadcasting machine described in the above embodiment is greater than or equal to 360 degrees; the sum of the radiation directions of the plurality of second antennas 1411 is greater than or equal to 360 degrees.

[0065] It should be noted that there can be overlapping areas between the radiation directions of multiple first antennas 1311 and multiple second antennas 1411, ensuring omnidirectional 360-degree radiation coverage. This prevents gain enhancement blind spots in the first antenna 1311 or second antenna 1411, allowing other electronic devices and the recording equipment to interact with each other without being restricted in their relative positions, thus enabling high-quality information exchange. For example, in one embodiment, four first antennas 1311 or second antennas 1411 can be provided, each with a radiation direction angle of 90 degrees and a high gain of approximately 8 to 10 dBi. The gain difference between the first antenna 1311 and the second antenna 1411 in the radiation direction and the non-radiation direction is 30 dB, enabling high-gain transmission in the radiation direction while avoiding unwanted signal interference in the non-radiation direction.

[0066] In one embodiment, the first antenna module 13 of the recording and broadcasting machine described in the above embodiment is used to transmit one of the video signal and the audio signal; the second antenna module 14 is used to transmit the other of the video signal and the audio signal.

[0067] Understandably, the first antenna module 13 of the recording and broadcasting machine can interact with either the camera or the microphone to transmit the corresponding video or audio signal. The second antenna module 14 can interact with the other of the camera or microphone to transmit the corresponding video or audio signal. For example, the first antenna module 13 can receive video signals in the 5GHz band, and the second antenna module 14 can receive audio signals in the 2.4GHz band, thus enabling the recording and broadcasting machine to simultaneously receive high-gain signals in both frequency bands, improving the effect of simultaneously receiving video and audio signals.

[0068] Combination Figure 5 As shown, a schematic diagram of the internal structure of the first accommodating cavity 111 of the housing 11 is provided. In one embodiment, the recording and broadcasting machine also includes a power divider and a radio frequency chip (wireless radio frequency module).

[0069] The power divider includes a first switching switch SW1 and a second switching switch SW2; the first switching switch SW1 is connected to multiple first antennas 1311 (e.g., Figure 5 (P1, P2, P5, and P6) and an RF chip, the RF chip transmitting signals to the first antenna 1311 via a first switching switch SW1; the second switching switch SW2 connects to multiple second antennas 1411 (e.g., P1, P2, P5, and P6) and an RF chip, the RF chip transmitting signals to the first antenna 1311 via a first switching switch SW1; the second switching switch SW2 connects to multiple second antennas Figure 5 The P3, P4, P7 and P8) and the radio frequency chip, the radio frequency chip transmits signals to the second antenna 1411 via the second switching switch SW2.

[0070] Optionally, the model of the power divider is related to the number of the first antenna 1311 and the second antenna 1411, ensuring that the power divider can connect to each antenna to control its on / off state. When there are four first antennas 1311 and four second antennas 1411, both the first switching switch SW1 and the second switching switch SW2 can be SP4T (Single Pole Four Throw) RF switches, which can interact with the RF chip via RF signals. If the RF chip determines that not all first antennas 1311 and second antennas 1411 need to be connected for electromagnetic wave radiation, the first switching switch SW1 and the second switching switch SW2 can control only a portion of the first antennas 1311 and / or a portion of the second antennas 1411 to operate, which helps reduce resource waste. Figure 5 As shown, one alternative embodiment is provided in which the first antenna 1311 communicates with the camera via electromagnetic wave radiation to transmit video signals, and the second antenna 1411 communicates with the microphone via electromagnetic wave radiation to transmit audio signals.

[0071] In one embodiment, the radio frequency (RF) chip of the recording and playback machine described in the above embodiment can be used to read the signal transmission and reception strength corresponding to each first antenna 1311 and each second antenna 1411 based on a preset period, determine the first antenna 1311 with the strongest signal transmission and reception strength among the plurality of first antennas 1311, and control a first switching switch to switch to transmit and receive signals only with the first antenna 1311 with the strongest signal transmission and reception strength. Similarly, the RF chip can also be used to determine the second antenna 1411 with the strongest signal transmission and reception strength among the plurality of second antennas 1411, and control a second switching switch to switch to transmit and receive signals only with the second antenna 1411 with the strongest signal transmission and reception strength.

[0072] It should be noted that the RF chip is configured with a chip algorithm. After the user installs the recording and broadcasting machine, the user can manually switch to the first antenna 1311 and the second antenna 1411 with the strongest signal transmission and reception strength to work. At this time, the other first antennas 1311 and second antennas 1411 will not work. Alternatively, the user can set a preset period. The RF chip will periodically read the signal transmission and reception strength of each first antenna 1311 and second antenna 1411 according to the preset period. This allows the RF chip to determine the first antenna 1311 and the second antenna 1411 with the strongest signal transmission and reception strength from each first antenna 1311 and each second antenna 1411 within each preset time period, so that the RF chip can determine the first antenna 1311 and the second antenna 1411 with the strongest signal transmission and reception strength to work, while the other first antennas 1311 and second antennas 1411 will not work. Furthermore, the RF chip controls the first and second switching switches to switch to the first antenna 1311 and the second antenna 1411 with the strongest signal transmission and reception strength for operation, and controls the other first antennas 1311 and the other second antennas 1411 to be turned off or to operate in a low-power state. This helps to reduce the power consumption of the recording and broadcasting machine while ensuring good long-distance information transmission between the recording and broadcasting machine and other electronic devices.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A recording and playback machine, characterized in that, The recording and playback machine includes: A housing, the housing including a first receiving cavity; A display screen, electrically connected to the housing, and the display screen includes a frame; A first antenna module is located inside the first accommodating cavity; the first antenna module includes a first antenna and a reflector, the reflector being used to reflect electromagnetic wave signals; the reflector and the inner wall surface of the housing form a reflecting cavity, the first antenna being located inside the reflecting cavity; the portion of the side plate of the housing used to enclose the reflecting cavity is made of non-metallic material; and at least one of the other inner wall surfaces of the reflecting cavity is made of metallic material; The second antenna module includes at least two sets of second antennas; the second antenna is disposed in at least one of the housing and the bezel of the display screen.

2. The recording and playback machine according to claim 1, characterized in that, The housing further includes a bottom plate and a top plate disposed opposite to each other; the side plate is disposed between the bottom plate and the top plate, and the bottom plate, the top plate and the side plate surround to form the first accommodating cavity; The reflector, together with the top plate, the bottom plate, and the side plate, forms the reflective cavity, wherein at least the portion of the top plate used to enclose the reflective cavity is made of non-metallic material; The display screen is located on the side of the top plate away from the bottom plate.

3. The recording and playback machine according to claim 2, characterized in that, The housing also includes a second accommodating cavity; The second receiving cavity is formed on the side surface of the top plate away from the bottom plate, and the second receiving cavity is located in the edge area of ​​the top plate; The second antenna is disposed within the second accommodating cavity, and the radiation direction of the second antenna is from the center area of ​​the top plate toward the edge area; In the panel that encloses the second receiving cavity, the panel located on the edge of the second receiving cavity facing the top plate is made of non-metallic material, and at least one of the other panels is made of metallic material.

4. The recording and playback machine according to claim 3, characterized in that, At least two of the second antenna modules are spaced apart within the second accommodating cavity; or, At least two of the second antenna modules are spaced apart within the bezel of the display screen.

5. The recording and playback machine according to claim 2, characterized in that, The side plate includes a bend, and the reflector is provided in a one-to-one correspondence with the bend. The reflector, the side plate forming the bend, the top plate, and the bottom plate surround the reflective cavity.

6. The recording and playback machine according to claim 5, characterized in that, The orthographic projection of the reflector onto the base plate is arc-shaped, with the center of the arc located on the side of the reflector away from the center point of the base plate; or, The orthographic projection of the reflector on the base plate is a polygonal shape, which is composed of at least two connected polygonal lines. The included angle between two adjacent polygonal lines is a right angle or an obtuse angle, and the included angle is formed on the side of the reflector away from the center point of the base plate.

7. The recording and playback machine according to claim 1, characterized in that, The sum of the radiation directions of the plurality of the first antennas is greater than or equal to 360 degrees; The sum of the radiation directions of the multiple second antennas is greater than or equal to 360 degrees.

8. The recording and playback machine according to claim 1, characterized in that, The first antenna module is used to transmit either video signals or audio signals; The second antenna module is used to transmit either the video signal or the audio signal.

9. The recording and playback machine according to claim 1, characterized in that, The recording and broadcasting machine also includes a power divider and an radio frequency chip; the power divider includes a first switching switch and a second switching switch; The first switching switch is connected to multiple first antennas and the radio frequency chip respectively, and the radio frequency chip transmits signals to the first antennas via the first switching switch; The second switch is connected to multiple second antennas and the radio frequency chip respectively, and the radio frequency chip transmits signals to the second antennas via the second switch.

10. The recording and playback machine according to claim 9, characterized in that, The radio frequency chip is used to read the signal transmission and reception strength of each first antenna and each second antenna based on a preset period, determine the first antenna with the strongest signal transmission and reception strength, and control the first switching switch to switch to the first antenna with the strongest signal transmission and reception strength for signal transmission and reception; determine the second antenna with the strongest signal transmission and reception strength, and control the second switching switch to switch to the second antenna with the strongest signal transmission and reception strength for signal transmission and reception.

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