Antenna system of sensing equipment and sensing equipment

Abstract

The embodiment of the utility model provides an antenna system of sensing equipment and the sensing equipment. The utility model is used for accommodating more antennas on the premise of not increasing the volume of the sensing equipment. The antenna system provided by the embodiment of the utility model comprises an upper cavity, a first side lug, a second side lug, a plurality of antennas and a communication module, wherein the first side lug and the second side lug are connected with the upper cavity. The plurality of antennas comprise a first antenna and a second antenna, and the first antenna and the second antenna are located in the first side ear and the second side ear respectively. The communication module is located in the upper cavity and comprises a first antenna interface and a second antenna interface, the first antenna interface is connected with the first antenna, and the second antenna interface is connected with the second antenna.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of antennas, and in particular to an antenna system of a sensing device and the sensing device. BACKGROUND

[0002] Wireless cameras include gun cameras, ball cameras, semi-ball cameras, and cloud cameras, etc. Ball cameras, i.e. spherical cameras, have a high degree of freedom of adjustment and are widely used.

[0003] A spherical camera includes an upper sphere, a lens, and side ears, etc. The upper sphere is connected to two side ears, and a side ear bracket on the side ear is used to fix the lens. The upper sphere also includes a power module, a communication module, a main controller, etc. The communication module is connected to an antenna, and the antenna transmits signals returned by the lens.

[0004] With the development of communication technology, the communication of the camera is gradually upgraded from 4G to 5G, and the number of antennas increases accordingly. The antennas are usually arranged in the upper sphere. If the number of antennas increases, the volume of the upper sphere needs to be increased or some antennas need to be arranged outside. If the volume of the upper sphere is increased, the volume of the entire camera will be increased, and the aesthetic appearance will be reduced. If some antennas are arranged outside, the positive aesthetic appearance will be affected, and the external antennas are prone to damage. CONTENT OF THE INVENTION

[0005] The present application provides an antenna system of a sensing device and the sensing device. More antennas are accommodated without increasing the volume of the sensing device.

[0006] In a first aspect, the present application provides an antenna system of a sensing device. The antenna system includes an upper cavity, a first side ear, a second side ear, a plurality of antennas, and a communication module. The first side ear and the second side ear are connected to the upper cavity. The plurality of antennas includes a first antenna and a second antenna. The first antenna and the second antenna are respectively located in the first side ear and the second side ear. The communication module is located in the upper cavity. The communication module includes a first antenna interface and a second antenna interface. The first antenna interface is connected to the first antenna, and the second antenna interface is connected to the second antenna.

[0007] In the embodiments of the present application, the space of the side ear (the first side ear and the second side ear) is used to accommodate the antennas, and at least two antennas can be accommodated. In the case of an increase in the number of antennas, the volume of the upper cavity does not need to be increased, and the antennas do not need to be arranged outside. This structure does not affect the aesthetic appearance of the camera and does not increase the volume of the camera.

[0008] In an optional implementation, the first antenna and the second antenna can be antennas on an antenna substrate. The antenna substrate can be a printed circuit board (PCB) or a flexible printed circuit (FPC).

[0009] Due to the small thickness of the PCB and the FPC, the antennas (e.g., the first antenna and the second antenna) can be disposed in the narrow space inside the side ear through the on-board antenna design. Even if the inside of the side ear cannot accommodate the antenna substrate where the antennas are located, the height of the side ear is increased by a height H (H≤10 mm), which is sufficient to accommodate the antennas (i.e., the antenna substrate where the antennas are located) inside the side ear. The increase in the height of the side ear has less impact on the overall shape of the camera than the increase in the height of the upper cavity, thereby reducing the impact on the aesthetic appearance of the camera.

[0010] In an optional implementation, the first antenna and the second antenna are low, medium, and high frequency antennas.

[0011] In the embodiments of the present application, the first antenna and the second antenna respectively form a communication link with the communication module, and through this setting, full-network communication of the dual-link can be achieved, thereby realizing multi-path low, medium, and high frequency communication.

[0012] In an optional implementation, the plurality of antennas further includes a third antenna, and the third antenna is located in the second side ear. The communication module further includes a third antenna interface, and the third antenna interface is connected with the third antenna.

[0013] In the embodiments of the present application, through the three antennas in the two side ears, which are respectively connected with the three antenna interfaces in the communication module, three-way signal transmission can be realized. Through the first antenna, the second antenna, and the third antenna, the structure can realize three-way transmission and three-way reception of signals.

[0014] In an optional implementation, the plurality of antennas further includes a fourth antenna, and the fourth antenna is located in the second side ear. The communication module further includes a fourth antenna interface, and the fourth antenna interface is connected with the fourth antenna.

[0015] In the embodiments of the present application, through the four antennas in the two side ears, which are respectively connected with the four antenna interfaces in the communication module, four-way signal transmission can be realized. Through the first antenna, the second antenna, the third antenna, and the fourth antenna, the structure can realize four-way transmission and four-way reception of signals.

[0016] In an optional implementation, in the second side ear, the volume ratio of the second antenna, the third antenna, and the fourth antenna is 2:1:1.

[0017] In an optional implementation, the second antenna is a medium-high frequency antenna, and the third antenna and the fourth antenna are high frequency antennas.

[0018] In the embodiment of the present application, the four antennas in the two side ears are respectively connected with the four antenna interfaces in the communication module. The first antenna in the first side ear is a full-band antenna, which can realize full-network access; the second antenna in the second side ear is a medium-high frequency antenna, which can maximize the medium frequency gain and efficiency; and the third antenna and the fourth antenna in the second side ear are high frequency antennas, which can realize high frequency transmission of different paths.

[0019] In this structure, the first antenna to the fourth antenna can realize full-network access. The first antenna realizes the transmission and reception of low, medium and high full-band by using one side ear independently; and the second antenna to the fourth antenna realize the transmission and reception of different medium-high frequencies and different gains by different area division. The first antenna and the second antenna located in different side ears both support medium frequency communication, and the overall medium frequency performance is better and the coverage is better.

[0020] In an optional implementation, in the second side ear, the volume ratio of the second antenna, the third antenna and the fourth antenna is 1:1:1.

[0021] In an optional implementation, the second antenna, the third antenna and the fourth antenna are all high frequency antennas.

[0022] In the embodiment of the present application, the first antenna in the first side ear is a full-band antenna, which can realize full-network access; and the second antenna to the fourth antenna in the second side ear are all high frequency antennas, which have better high frequency performance and better coverage.

[0023] This structure can realize the highest four-way transmission and four-way reception of signals, and the highest four-way transmission and four-way reception of high frequency signals through the first antenna, the second antenna, the third antenna and the fourth antenna.

[0024] In an optional implementation, the second side ear further includes an antenna substrate, and the second antenna, the third antenna and the fourth antenna are all located on the antenna substrate. The antenna substrate is a printed circuit board (PCB) or a flexible circuit board (FPC).

[0025] In the embodiment of the present application, because the thickness of the PCB and the FPC is small, the antenna (for example, the first antenna to the fourth antenna) can be arranged in the small space inside the side ear through the on-board antenna design. Even if the internal space of the side ear cannot accommodate the antenna substrate where the antenna is located, the height of the side ear is increased by a height H (H≤10mm), which is sufficient to accommodate the antenna (that is, to accommodate the antenna substrate where the antenna is located) in the side ear. Compared with increasing the height of the upper cavity, increasing the height of the side ear has less impact on the overall shape of the camera, thereby reducing the impact on the aesthetic appearance of the camera.

[0026] In an optional implementation, the antenna system further comprises a first connecting line, a second connecting line, a third connecting line and a fourth connecting line. The first connecting line is used to connect the first antenna and the first antenna interface; the second connecting line, the third connecting line and the fourth connecting line are respectively used to connect the second antenna and the second antenna interface, the third antenna and the third antenna interface, and the fourth antenna and the fourth antenna interface. The lengths of the second connecting line, the third connecting line and the fourth connecting line are different from each other.

[0027] In the embodiments of the present application, different antennas in the second side ear are connected through connecting lines of different lengths, and different antennas in the second side ear are distinguished through the lengths of the connecting lines, so that the antennas are prevented from being connected incorrectly.

[0028] In an optional implementation, the antenna system further comprises a wire tie, and the wire tie is used to fix the second connecting line, the third connecting line and the fourth connecting line.

[0029] In the embodiments of the present application, after being fixed by the wire tie, the lengths of the different connecting lines are better distinguished, the different antennas can be better distinguished, the antennas are prevented from being connected incorrectly, and further foolproofing is achieved.

[0030] In an optional implementation, the first antenna is a low-frequency, medium-frequency and high-frequency antenna.

[0031] In an optional implementation, the antenna system further comprises a fifth antenna, and the fifth antenna is located in the first side ear. The communication module further comprises a fifth antenna interface, and the fifth antenna interface is connected with the fifth antenna.

[0032] In a second aspect, the embodiments of the present application provide a sensing device. The sensing device comprises a sensing unit and an antenna system. The antenna system is the antenna system described in the first aspect and the implementation manners of the first aspect. The sensing unit is fixed with the first side ear and the second side ear of the antenna system, and the antenna system is used to transmit a backhaul signal of the sensing unit.

[0033] In an optional implementation, the sensing unit is a lens; the lens comprises one or more of an optical lens, an infrared lens, a microwave lens and an ultraviolet filter.

[0034] In an optional implementation, the sensing unit is a sound wave detector, a light detector or other sensor.

[0035] The beneficial effects of the second aspect are described in the first aspect, and will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1a A structural schematic diagram of a camera is provided for the present application;

[0037] Figure 1b A structural schematic diagram of a side ear of a camera is provided for the present application;

[0038] Figure 2 A structural diagram of an antenna system of a sensing device provided by an embodiment of the present application;

[0039] Figure 3 A schematic diagram of a connection relationship of an antenna system provided by an embodiment of the present application;

[0040] Figure 4 A structural diagram of an antenna system of a dual-antenna provided by an embodiment of the present application;

[0041] Figure 5 Another structural diagram of an antenna system of a dual-antenna provided by an embodiment of the present application;

[0042] Figure 6 A structural diagram of an antenna system of a triple-antenna provided by an embodiment of the present application;

[0043] Figure 7 A structural diagram of an antenna system of a four-antenna with unequal ratio provided by an embodiment of the present application;

[0044] Figure 8 A schematic diagram of a connection line of an antenna provided by an embodiment of the present application;

[0045] Figure 9 A structural diagram of an antenna system of a four-antenna with equal ratio provided by an embodiment of the present application. DETAILED DESCRIPTION

[0046] The embodiments of the present application are described below in conjunction with the accompanying drawings. It is known to those skilled in the art that the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems as the technology develops and new scenarios appear.

[0047] The terms "first", "second", and the like in the description and in the claims of the present application and above drawings are used to distinguish similar objects and are not necessarily used to describe a specific sequential or chronological order. It should be understood that the terms so used are interchangeable under appropriate circumstances and are merely employed to distinguish one embodiment of the application from another embodiment of the application. Additionally, the terms "comprise", "comprising", "have", "has", "including", or "contains", or "containing", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises, has, includes, or contains a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, "one or more" means one, or one or more, and "plurality" means two or more. "And / or" between the associated objects is used to represent three relationships, for example, A and / or B, which can represent the existence of A alone, the existence of B alone, and the existence of A and B at the same time, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects. "At least one of" or similar expressions means any combination of the items, including single item or combination of multiple items. For example, at least one of a, b, or c can represent a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be singular or plural.

[0048] Sensing devices such as cameras, infrared cameras, etc. are widely used in security, transportation and other fields. Cameras include gun-type cameras, spherical cameras, semi-spherical cameras and other categories. Among them, spherical cameras are widely used in various scenes due to high adjustment freedom, regular shape and high aesthetic degree.

[0049] As shown in Figure 1a , the spherical camera includes an upper sphere, a lens, a side ear and other structures. The upper sphere serves as the base of the spherical camera and is used to connect with walls, ceiling, lampposts and other structures to fix the spherical camera. The lower part of the upper sphere is connected with two side ears.

[0050] As shown in Figure 1b , the side ear bracket on the inner side of the side ear is used to fix the lens. The side ear also includes a side ear cover which is located on the outer side of the side ear.

[0051] Generally, the upper cavity of the camera, the side ear bracket, the lens shell and other structures are made of metal, and the side ear cover is made of non-metal material (such as plastic). The side ear cover is provided to facilitate the installation of the lens on the side ear, so the space between the side ear cover and the side ear is small, and the internal components of the camera (such as power modules, communication modules, etc.) cannot be accommodated in the side ear.

[0052] The upper sphere further includes a power module, a communication module, a main controller, and the like. The main controller is configured to control the moving angle of the lens. The communication module is connected with the antenna of the camera, and transmits the signal returned by the lens through the camera antenna. The power module is configured to supply power for the lens, the antenna module, and the like.

[0053] With the development of communication technology, the communication of the camera gradually improves from 4G to 5G, and the number of antennas increases accordingly. The antennas are usually arranged in the upper sphere. If the number of antennas increases, the volume of the upper sphere needs to be increased or part of the antennas needs to be arranged outside.

[0054] If the volume of the upper sphere is increased, the volume of the entire camera will be increased. For some scenes where the camera is arranged in a limited space, the camera cannot be adapted to such scenes after the volume of the camera is increased. Moreover, the height of the upper sphere is usually increased to increase the volume of the upper sphere, which will cause the camera to be unbalanced in shape and the aesthetic degree to be reduced.

[0055] If part of the antennas is arranged outside, on the one hand, the aesthetic degree of the camera will be affected, and on the other hand, the external antennas are easy to be damaged. Moreover, the waterproof design of the external antennas is relatively complex and has a high cost.

[0056] In order to accommodate more antennas in the camera without increasing the volume of the camera, the idea of the embodiments of the present application is to arrange the antennas in the side ears. The antenna system provided by the embodiments of the present application realizes the multi-antenna design by arranging the antennas in the side ears, and increases the number of signal transmission paths by designing the multi-antenna in the antenna substrate in the side ear.

[0057] Figure 2 The structure diagram of the antenna system provided by the embodiments of the present application is shown. As shown in Figure 2 The antenna system 2000 includes an upper cavity 2100, a first side ear 2200, a second side ear 2300, and a communication module 2400. The first side ear 2200 and the second side ear 2300 are connected with the upper cavity 2100.

[0058] The upper cavity 2100 is the upper sphere in the foregoing embodiments.

[0059] The antenna system 2000 further includes a plurality of antennas (for the convenience of description, the antennas are numbered as 25X0 in the following, X represents different antennas), for example Figure 2 The first antenna 2510 and the second antenna 2520 shown in the first antenna 2510 and the second antenna 2520. The first antenna 2510 and the second antenna 2520 are respectively located in the first side ear 2200 and the second side ear 2300.

[0060] Specifically, the first antenna 2510 is located in the cavity between the side ear and the side ear cover of the first side ear 2200; and the second antenna is located in the cavity between the side ear and the side ear cover of the second side ear 2300.

[0061] The communication module 2400 is located in the upper cavity 2100, and the communication module 2400 includes a first antenna interface 2410 and a second antenna interface 2420. The first antenna interface 2410 is connected with the first antenna 2510, and the second antenna interface 2420 is connected with the second antenna 2520. The communication module 2400 is configured to realize modulation and demodulation of radio frequency signals.

[0062] In the embodiments of the present application, the space of the side ears (the first side ear 2200 and the second side ear 2300) is used to accommodate the antennas, and at least two antennas can be accommodated. In the case of increasing the number of antennas, the volume of the upper cavity 2100 does not need to be increased, and the antennas do not need to be externally arranged. The structure does not affect the aesthetic appearance of the camera and does not increase the volume of the camera.

[0063] In the embodiments of the present application, the first antenna 2510 and the second antenna 2520 can be antennas on an antenna substrate. The antenna substrate can be a printed circuit board (PCB) or a flexible printed circuit (FPC). Since the thickness of the PCB and the FPC is small, the antennas (for example, the first antenna 2510 and the second antenna 2520) can be arranged in the small space inside the side ear by the on-board antenna design.

[0064] Even if the space inside the side ear cannot accommodate the antenna substrate on which the antennas are located, the height of the side ear is increased by a height H (H≤10mm), which is sufficient to accommodate the antennas (that is, to accommodate the antenna substrate on which the antennas are located) in the side ear. Compared with increasing the height of the upper cavity, increasing the height of the side ear has less impact on the overall shape of the camera, thereby reducing the impact on the aesthetic appearance of the camera.

[0065] It is worth noting that the first side ear 2200 and the second side ear 2300 can be integrally formed, and the specific structure is as shown in Figure 1b In this structure, the first side ear 2200 and the second side ear 2300 are both connected with a circular side ear connecting piece. The side ear connecting piece is used to be connected with the upper cavity 2100. Since the connection relationship between the side ear connecting piece and the upper cavity is simple (for example, it can be a threaded connection, a buckling connection, etc.), the waterproofness of the camera can be ensured by connecting the side ear connecting piece with the upper cavity 2100.

[0066] Optionally, the integrally formed side-ear connecting piece, the first side ear 2200 and the second side ear 2300, can include a cavity in communication, for example, the cavity between the first side ear 2200 and the side-ear connecting piece. A connecting line can be embedded in the cavity between the first side ear 2200 and the side-ear connecting piece, and the connecting line extends into the upper cavity 2100 and is connected to the first antenna interface 2410, thereby realizing the connection between the first antenna 2510 and the communication module 2400. The second antenna 2520 is the same. This structure can guarantee the sealing and waterproofness of the camera, and has a simple structure and low cost.

[0067] In the embodiments of the present application, the upper cavity 2100 can also include a main controller, a power module and the like. As shown in Figure 3 , the communication module 2400 can be connected to the main controller through a universal serial bus (USB) interface. The power module is used to provide a direct current (DC) power supply for the main controller and the communication module 2400. The main controller is used to process data.

[0068] As shown in Figure 3 , the first antenna 2510 in the first side ear 2200 is connected to the first antenna interface 2410 of the communication module 2400 through a coaxial connector, and the second antenna 2520 in the second side ear 2300 is connected to the second antenna interface 2420 of the communication module 2400 through a coaxial connector. Optionally, as shown by the dashed line in Figure 3 , the second side ear 2300 can also include more antennas, which are located on the same PCB or FPC as the second antenna 2520 and are connected to other antenna interfaces on the communication module 2400.

[0069] In the embodiments of the present application, whether the antenna substrate (PCB or FPC) in the first side ear 2200 or the second side ear 2300, one or more antennas can be arranged thereon, thereby realizing the multi-antenna design of the entire antenna system. This structure can increase the number of antennas connected to the communication module 2500, thereby increasing the number of signal transmission paths.

[0070] In the embodiments of the present application, the number of antennas contained in the first side ear 2200 and the second side ear 2300 is not limited. Generally, the number of antennas in the camera is matched with the number of antenna interfaces in the communication module, which will be illustrated below:

[0071] 1. The first side ear 2200 and the second side ear 2300 each include one antenna.

[0072] For a communication module 2400 with two antenna ports, two antennas are needed to match the same, which are located in two side ears. For details, see Figure 4 andFigure 5 .

[0073] The first antenna 2510 is located in the first side ear 2200 and is connected with the first antenna interface 2410 of the communication module 2400; the second antenna 2520 is located in the second side ear 2300 and is connected with the second antenna interface 2420 of the communication module 2400.

[0074] Optionally, the connection interface between the antenna (the first antenna 2510 and the second antenna 2520) and the communication module 2500 can be a coaxial connector. For example, an IPEX coaxial connector, an MCX coaxial connector, and the like, which are not limited in the present application.

[0075] In an optional implementation, the first antenna 2510 and the second antenna 2520 are low, medium and high frequency antennas. The low, medium and high frequency antenna is also called a full-band antenna or a full-network antenna. The low, medium and high frequency antenna supports low, medium and high frequency communication.

[0076] In an optional implementation, the low frequency is 700-800MHz, the medium frequency is 800MHz-2100MHz, and the high frequency is 2100MHz-60000MHz. It is worth noting that this frequency band division method is only an example and does not limit the range of low, medium and high frequencies in the embodiments of the present application.

[0077] The structure can realize double-way transmission and double-way reception of signals through the first antenna 2510 and the second antenna 2520.

[0078] In the embodiments of the present application, the first antenna 2510 and the second antenna 2520 respectively form a communication link with the communication module 2400, and through this setting, full-network communication of double links can be realized, thereby realizing multi-way low, medium and high frequency communication.

[0079] 2. One antenna is included in the first side ear 2200, and two antennas are included in the second side ear 2300.

[0080] For the communication module 2400 with three antenna ports, three antennas are needed to match. One antenna is located in one side ear, and the other two antennas are located in the other side ear. For details, see Figure 6 .

[0081] In addition to the second antenna 2520, the third antenna 2530 is also included in the second side ear 2300. The third antenna 2530 is connected with the third antenna interface 2430 in the communication module 2400.

[0082] In an optional implementation, the first antenna 2510 is a low, medium, high frequency antenna (full-band antenna). The second antenna 2520 and the third antenna 2530 are both medium-high frequency antennas, or both high frequency antennas. The second antenna 2520 and the third antenna 2530 are located on the same antenna substrate (for example, a PCB board or an FPC board) in the second side ear 2300. If the second antenna 2520 and the third antenna 2530 are antennas of the same frequency band, the volumes of the two antennas are similar. The second antenna 2520 and the third antenna 2530 occupy the same area of the antenna substrate in the second side ear 2300. For corresponding structures, refer to Figure 6 .

[0083] Alternatively, the second antenna 2520 and the third antenna 2530 can be one medium-high frequency antenna and one high frequency antenna. Since the volume of the high frequency antenna is smaller than that of the medium-high frequency antenna, if the second antenna 2520 and the third antenna 2530 are a medium-high frequency antenna and a high frequency antenna respectively, the second antenna 2520 and the third antenna 2530 occupy different areas of the antenna substrate in the second side ear 2300.

[0084] In the embodiment of the present application, through the three antennas in the two side ears, respectively connected with the three antenna interfaces in the communication module 2400, three-way signal transmission can be realized.

[0085] The structure can realize three-way transmission and three-way reception of signals at most through the first antenna 2510, the second antenna 2520 and the third antenna 2530.

[0086] 3. The first side ear 2200 includes one antenna, and the second side ear 2300 includes three antennas.

[0087] For the communication module 2400 with four antenna ports, four antennas are needed to match. One antenna is located in one side ear, and the other three antennas are located in the other side ear. For specific structures, refer to Figure 7 .

[0088] In addition to the second antenna 2520, the second side ear 2300 also includes a third antenna 2530 and a fourth antenna 2540. The third antenna 2530 is connected with the third antenna interface 2430 in the communication module 2400, and the fourth antenna 2540 is connected with the fourth antenna interface 2440 in the communication module 2400.

[0089] The first antenna 2510 is an independent antenna, which can be a low, medium, high frequency antenna (full-band antenna).

[0090] The second antenna 2520, the third antenna 2530, and the fourth antenna 2540 are unequal antennas (i.e. occupying different areas of the antenna substrate) on the same antenna substrate within the second ear 2300. The total area and size of the second antenna 2520, the third antenna 2530, and the fourth antenna 2540 are equal to those of the first antenna 2510.

[0091] The area ratio (volume ratio) of the second antenna 2520, the third antenna 2530, and the fourth antenna 2540 on the antenna substrate within the second ear 2300 is 2:1:1. The second antenna 2520 is a mid-to-high frequency antenna, while the third antenna 2530 and the fourth antenna 2540 are high frequency antennas.

[0092] In this embodiment, four antennas within two side ears are connected to four antenna interfaces within the communication module 2400. Specifically, the first antenna 2510 within the first side ear 2200 is a full-band antenna, enabling full network connectivity; the second antenna 2520 within the second side ear 2300 is a mid-to-high frequency antenna, maximizing mid-frequency gain and efficiency; and the third antenna 2530 and fourth antenna 2540 within the second side ear 2300 are high-frequency antennas, enabling high-frequency transmission on different paths.

[0093] In this structure, antennas 2510 to 2540 can achieve full network connectivity. Antenna 2510 independently uses a single ear to transmit and receive across the low, medium, and high frequency bands. Antennas 2520 to 2540 achieve different medium and high frequency transmissions and receptions with varying gain through different area divisions. Both antennas 2510 and 2520, located within different ear sections, support intermediate frequency (IF) communication, resulting in superior overall IF performance and better coverage.

[0094] This structure can achieve up to four-way signal transmission and four-way signal reception through the first antenna 2510, the second antenna 2520, the third antenna 2530 and the fourth antenna 2540.

[0095] Optionally, different antennas in the second side ear 2300 can be distinguished by using different connecting wire lengths to prevent the antennas from being connected to the wrong antenna interface. This design is also known as a foolproof design.

[0096] like Figure 8 As shown, the second antenna 2520 is connected to the second connecting line, which connects the second antenna 2520 to the second antenna interface 2420; the third antenna 2530 is connected to the third connecting line, which connects the third antenna 2530 to the third antenna interface 2430; and the fourth antenna 2540 is connected to the fourth connecting line, which connects the fourth antenna 2540 to the fourth antenna interface 2440. The second, third, and fourth connecting lines are of different lengths to distinguish between the different antennas.

[0097] In the embodiment of the present application, different antennas in the second side ear 2300 are connected by connection lines of different lengths, and different antennas in the second side ear 2300 are distinguished by the lengths of the connection lines, so as to prevent the antennas from being connected incorrectly.

[0098] Optionally, as shown in Figure 8 , the second connection line, the third connection line and the fourth connection line can also be fixed by a wire tie. After being fixed by the wire tie, the lengths of the different connection lines are better distinguished, the different antennas can be better distinguished, the incorrect connection is prevented, and further foolproofing is achieved.

[0099] Optionally, the volumes of the second antenna 2520 to the fourth antenna 2540 can also be equal. As shown in Figure 9 , the first antenna 2510 in the first side ear 2200 is a low, medium and high frequency antenna. The second antenna 2520, the third antenna 2530 and the fourth antenna 2540 in the second side ear 2300 are all high frequency antennas. The second antenna 2520, the third antenna 2530 and the fourth antenna 2540 occupy the same area (volume) of the antenna substrate in the second side ear 2300. For corresponding structures, please refer to Figure 9 .

[0100] In the embodiment of the present application, the first antenna 2510 in the first side ear 2200 is a full-band antenna, which can realize full-network access; the second antenna 2520 to the fourth antenna 2540 in the second side ear 2300 are all high frequency antennas, and the high frequency performance is better and the coverage is better.

[0101] The structure can realize four-way transmission and four-way reception of signals at most by the first antenna 2510, the second antenna 2520, the third antenna 2530 and the fourth antenna 2540, and can realize four-way transmission and four-way reception of high frequency signals at most.

[0102] It is worth noting that, Figures 2 to 9 is a different description of one or more antennas in the second side ear 2300. The description is only an example, and the second side ear 2300 can also include more antennas, which are not limited in the present application.

[0103] 4. The first side ear 2200 includes a plurality of antennas, and the second side ear 2300 includes a plurality of antennas.

[0104] Optionally, based on the above Figures 2 to 9 , the embodiment shown can also accommodate a plurality of antennas in the first side ear 2200. For example, in the antenna substrate (PCB or FPC) of the first side ear 2200, in addition to the first antenna 2510, a fifth antenna is also included.

[0105] Optionally, the first antenna 2510 is a low, medium, high frequency antenna (full-band antenna), and the fifth antenna is a high frequency antenna. The area ratio (volume ratio) of the first antenna 2510 to the fifth antenna in the antenna substrate of the first side ear 2200 is 5:1 or 4:1, or other ratios, which are not limited in the present application.

[0106] The embodiment of the present application also provides a sensing device, which comprises a sensing unit and the antenna system 2000 described above. Figures 2 to 9 The sensing unit is fixed with the first side ear 2200 and the third side ear 2300 of the antenna system 2000. The fixing mode between the sensing unit and the side ear is described in the description of Figure 1a and Figure 1b , which will not be repeated here.

[0107] The antenna system 2000 is used for transmitting the backhaul signal of the sensing unit. Optionally, the sensing unit can be a lens, and the backhaul signal is an image or video signal.

[0108] Optionally, the lens can be one or more of an optical lens, an infrared lens, a microwave lens and an ultraviolet filter.

[0109] It is worth noting that in addition to the lens, the sensing unit can also be a sound wave detector, a light detector and other sensors, which are not limited in the present application.

[0110] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0111] In the several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented by other ways. For example, the device embodiments described above are only schematic, and the division of the units is only a logical function division, and there can be another division way in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0112] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0113] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0114] When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application, essentially or in other words, the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

Claims

1. An antenna system for a sensing device, characterized by The antenna system comprises: an upper cavity, a first side ear, a second side ear, a plurality of antennas, and a communication module, the first side ear and the second side ear are connected with the upper cavity; the plurality of antennas comprises a first antenna and a second antenna, the first antenna and the second antenna are respectively located in the first side ear and the second side ear; the communication module is located in the upper cavity, the communication module comprises a first antenna interface and a second antenna interface, the first antenna interface is connected with the first antenna, and the second antenna interface is connected with the second antenna.

2. The antenna system of claim 1, wherein, The first antenna and the second antenna are low, medium and high frequency antennas.

3. The antenna system of claim 1, wherein, The plurality of antennas further comprises a third antenna, the third antenna is located in the second side ear; the communication module further comprises a third antenna interface, the third antenna interface is connected with the third antenna.

4. The antenna system of claim 3, wherein, The plurality of antennas further comprises a fourth antenna, the fourth antenna is located in the second side ear; the communication module further comprises a fourth antenna interface, the fourth antenna interface is connected with the fourth antenna.

5. The antenna system of claim 4, wherein, In the second side ear, the volume ratio of the second antenna, the third antenna and the fourth antenna is 2:1:

1.

6. The antenna system of claim 5, wherein, The second antenna is a medium and high frequency antenna, and the third antenna and the fourth antenna are high frequency antennas.

7. The antenna system of claim 4, wherein, In the second side ear, the volume ratio of the second antenna, the third antenna and the fourth antenna is 1:1:

1.

8. The antenna system of claim 7, wherein, The second antenna, the third antenna and the fourth antenna are high frequency antennas.

9. The antenna system of any one of claims 4 to 8, wherein, The second side ear further comprises an antenna substrate, the second antenna, the third antenna and the fourth antenna are located on the antenna substrate, and the antenna substrate is a printed circuit board (PCB) or a flexible circuit board (FPC).

10. The antenna system of any one of claims 4 to 8, wherein, Further comprising a first connecting line, a second connecting line, a third connecting line and a fourth connecting line; the first connecting line is used for connecting the first antenna and the first antenna interface; the second connecting line, the third connecting line and the fourth connecting line are respectively used for connecting the second antenna and the second antenna interface, the third antenna and the third antenna interface, and the fourth antenna and the fourth antenna interface; the lengths of the second connecting line, the third connecting line and the fourth connecting line are different from each other.

11. The antenna system of claim 10, wherein, Further comprising a line bundle, the line bundle is used for fixing the second connecting line, the third connecting line and the fourth connecting line.

12. The antenna system of any one of claims 3 to 8 or 11, wherein, The first antenna is a low, medium and high frequency antenna.

13. The antenna system according to any one of claims 1 to 8 or 11, further comprising: a fifth antenna located in the first side ear; the communication module further comprises a fifth antenna interface, the fifth antenna interface is connected with the fifth antenna.

14. A sensing device, characterized by The antenna system comprises: a sensing unit and an antenna system, the antenna system is the antenna system according to any one of claims 1 to 13; 15. The sensing device of claim 14, wherein, the sensing unit is fixed with the first side ear and the second side ear of the antenna system, and the antenna system is used for transmitting the backhaul signal of the sensing unit. The sensing unit is a lens; the lens comprises one or more of an optical lens, an infrared lens, a microwave lens and an ultraviolet filter.

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