Electronic equipment and method for detecting interference

Abstract

The invention provides electronic equipment and a method for detecting interference. The electronic device comprises a feed source; the first antenna is located on the first side edge of the electronic equipment and electrically connected with the feed source, and the first antenna is an inverted-F antenna; the second antenna is composed of a metal decoration ring located on the surface of the electronic equipment; the switching circuit is connected with the first antenna and the second antenna, the first antenna and the second antenna are switched on when the switching circuit is in a switched-on state, and the first antenna and the second antenna are disconnected when the switching circuit is in a switched-off state; the control circuit is connected with the switching circuit and is used for executing the following operations: controlling the switching circuit to be in an off state in response to the electronic equipment being in a detection positioning mode; and controlling the switching circuit to be in an on state in response to the electronic equipment being in the directional transmission mode. The antenna on the surface of the electronic equipment and original structural parts are utilized, so that the antenna occupies small space and is simple in structure.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of wireless communication technology, and more specifically, to an electronic device and a method for detecting interference. Background Art

[0002] With the development and popularization of consumer drones, the market for civil drones continues to grow, and the phenomenon of illegal use of drones has also increased. Currently, drone countermeasures on the market are mainly radio countermeasures, such as detection and jamming equipment. Detection and jamming equipment is a way to separate detection and jamming, but detection and jamming equipment has the problem that the antenna occupies a large space and the overall structure is complex. Summary of the invention

[0003] The embodiment of the present application provides an electronic device and a method for detecting interference. The following introduces various aspects involved in the embodiment of the present application.

[0004] In a first aspect, an electronic device is provided, comprising: a feed source; a first antenna, located on a first side of the electronic device and electrically connected to the feed source, the first antenna being an inverted F antenna; a second antenna, formed by a metal decorative ring located on a surface of the electronic device; a switching circuit, connected to the first antenna and the second antenna, wherein when the switching circuit is in an on state, the first antenna and the second antenna are connected, and when the switching circuit is in an off state, the first antenna and the second antenna are disconnected; a control circuit, connected to the switching circuit, for performing the following operations: in response to the electronic device being in a detection and positioning mode, controlling the switching circuit to be in an off state; in response to the electronic device being in a directional transmission mode, controlling the switching circuit to be in an on state.

[0005] In a second aspect, a method for detecting interference is provided, which is applied to an electronic device, wherein the electronic device comprises: a feed source; a first antenna, located at a first side of the electronic device and electrically connected to the feed source, the first antenna being an inverted F antenna; a second antenna, formed by a metal decorative ring located on a surface of the electronic device; a switch circuit, connected to the first antenna and the second antenna, wherein when the switch circuit is in an on state, the first antenna and the second antenna are connected, and when the switch circuit is in an off state, the first antenna and the second antenna are disconnected; a control circuit, connected to the switch circuit, for performing the following operations: in response to the electronic device being in a detection and positioning mode, controlling the switch circuit to be in an off state; in response to the electronic device being in a directional transmission mode, controlling the switch circuit to be in an on state; the method comprises: determining the current position and operating frequency band of the target device using the first antenna; determining the frequency band of the interference signal according to the operating frequency band of the target device; and transmitting the interference signal to the target device through the second antenna according to the current position.

[0006] According to a third aspect, a non-volatile computer-readable storage medium is provided, on which instructions for executing the method according to the second aspect are stored.

[0007] According to a fourth aspect, a computer program or a computer program product is provided, comprising instructions for executing the method according to the second aspect.

[0008] In the embodiment of the present application, the inverted F antenna on the surface of the electronic device and the original metal decorative ring are connected through a switch circuit, respectively as a detection antenna and an interference antenna in a directional mode, for detecting, locating and interfering with the target device. In addition to having its own functions, the electronic device does not need to have a separate antenna and can also be used as a detection and interference device. Since the antenna on the surface of the electronic device and the original structural parts are used, the antenna occupies a small space and has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of some component units of an electronic device provided in an embodiment of the present application.

[0010] Figure 2 yes Figure 1 A schematic structural diagram of a possible implementation of an electronic device.

[0011] Figure 3 yes Figure 2 A schematic diagram of a possible implementation of a mobile phone arrangement.

[0012] Figure 4 yes Figure 2 Schematic diagram of the beam direction of the antenna.

[0013] Figure 5 It is a flowchart of a method for detecting interference provided by an embodiment. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0015] In recent years, with the development and popularization of consumer drones, the market for civil drones has continued to grow. Due to the uneven quality of operators, the illegal use of drones has also increased. Drones have frequently interfered with public order and affected public safety. At the same time, they are also easily used by criminals as tools for crimes such as peeping, stealing privacy and confidential information in the area, or placing dangerous and prohibited items. This has posed new challenges to the security tasks of sensitive areas such as airports, nuclear power plants, and military bases, as well as large conferences and events. The demand for anti-drone equipment is increasing, and drone countermeasures have emerged.

[0016] At present, the countermeasures against drones in the market are mainly radio countermeasures. They include handheld control equipment and detection and interference equipment. Among them, handheld control equipment, including jammers, jammers and jammer guns, are favored by the majority of users because of their small size, light weight, easy to carry and simple operation. Its working principle is to visually detect the drone in the air, interfere with the communication link and navigation link of the drone, cut off the communication and satellite navigation between the drone and the remote control, force the drone to land automatically or drive it away, and then achieve the purpose of low-altitude safety protection. However, most handheld drone control equipment only has radio interference function, can only detect the drone visually and then interfere, does not have direction-finding function, cannot detect the location of the drone, and has poor interference effect and low efficiency.

[0017] Detection and interference equipment is achieved by separating detection and interference: first, a spectrum detection device is used to detect drone communication signals and perform direction finding and positioning, and then a jammer is used to transmit drone communication jamming signals to block the communication between the drone and the flight control device, forcing the drone to automatically land or drive it away, thereby achieving the purpose of low-altitude safety protection. However, this method requires two sets of antennas and two sets of processing mechanisms, resulting in a large size and complex configuration.

[0018] For example, the related art discloses a detection and interference device for unmanned aerial vehicles. The detection and interference device includes: a support rod, a detection and positioning module, a detection and interference module and a signal processing module. The support rod is used to fix the detection and positioning module, the detection and interference module and the signal processing module. The detection and positioning module includes: a first antenna array module for detecting and positioning the unmanned aerial vehicle in the upper space and a second antenna array module for detecting and positioning the unmanned aerial vehicle in the circumferential space. The first antenna array module is arranged above the second antenna array. The detection and interference module includes a plurality of detection transmitting antennas arranged circumferentially around the support rod. The detection and positioning module and the detection and interference module are both communicatively connected to the signal processing module.

[0019] It can be seen that the multiple detection and jamming antennas of the detection and jamming equipment occupy a large space, have a complex overall structure and are heavy.

[0020] Therefore, how to develop an interference detection device with a relatively small interference detection antenna space is a problem that needs to be solved.

[0021] Based on this, the embodiment of the present application proposes an electronic device. Based on the first antenna of the electronic device (such as a mobile phone), a target device (such as a drone) in a specific frequency band is detected. The user can detect by holding the electronic device and scanning around. No multi-antenna design is required. The metal decorative ring (deco) located on the surface of the electronic device is used as the second antenna. The second antenna transmits an interference signal to the target device, blocks the communication between the target device and the flight control device, and forces the target device to land automatically or drives it away. Figure 1 This is a schematic diagram of some components of the electronic device provided in the embodiment of the present application. Figure 1 The electronic device of the embodiment of the present application is described in detail. The electronic device 100 may be, for example, a mobile phone or a tablet computer. Figure 1 As shown, the electronic device 100 may include a feed source 110 , a first antenna 120 , a second antenna 130 , a switch circuit 140 , and a control circuit 150 .

[0022] The feed source 110 is used to provide an excitation signal to be transmitted to the first antenna 120 and / or the second antenna 130 .

[0023] The first antenna 120 is located at the first side of the electronic device and is electrically connected to the feed source 110. The first antenna may be an inverted F antenna. The polarization direction of the inverted F antenna is vertical, and it is an omnidirectional antenna that generates linearly polarized waves. The first side is any side of the multiple sides of the electronic device, such as the first side may be the top side. The inverted F antenna has a simple structure and is easy to set up. The inverted F antenna may be an existing antenna of the electronic device or a newly added antenna of the electronic device.

[0024] The second antenna 130 is composed of a metal decorative ring located on the surface of the electronic device. The electronic device may include a front and back side (or front and back) and a side, usually the side where the display screen is located is the front side, and the side opposite to the front side is the back side. The electronic device usually has a rear camera function. In some implementations, the metal decorative ring is an existing rear camera decorative ring (deco). With the electronic device as a whole as a reflector, the rear camera decorative ring can operate in a patch antenna mode. The patch antenna is a pancake-shaped directional antenna, also called a panel or flat antenna. The patch antenna is composed of two metal plates (one of which is larger than the other) stacked together, which can produce a beam direction with a hemispherical coverage surface. Therefore, the second antenna 130 has the high gain characteristics of a directional antenna and is suitable for transmitting high-power radio frequency signals, such as interference signals.

[0025] The switch circuit 140 is connected to the first antenna 120 and the second antenna 130. When the switch circuit 140 is in the on state, the first antenna 120 and the second antenna 130 are connected, and the first antenna 120 can be used as a conductor, such as a flexible printed circuit (FPC) parasitic in the first antenna 120, and the feed source 110 is connected to the second antenna 130 through the flexible printed circuit parasitic in the first antenna 120. When the switch circuit 140 is in the off state, the first antenna 120 and the second antenna 130 are disconnected.

[0026] The control circuit 150 is connected to the switch circuit 140 and is used to perform the following operations:

[0027] In response to the electronic device being in the detection and positioning (or simply referred to as detection) mode, the control switch circuit 140 is in the disconnected state; in response to the electronic device being in the directional transmission mode, the control switch circuit 140 is in the connected state. When the switch circuit 140 is in the disconnected state, the first antenna 120 is used as a detection antenna, which can search for the location and communication working frequency band of the target device. The target device can be a drone or other monitoring equipment. When the switch circuit 140 is in the connected state, the first antenna 120 can be used as a conductor, and the feed source 110 is connected to the second antenna 130 through the first antenna 120 (conductor). Since the second antenna 130 has the characteristics of high gain of a directional antenna, the user can adjust the beam direction of the second antenna 130 toward the location of the target device, and transmit an interference signal to the target device through the second antenna 130. For example, the communication between the target device (such as a drone) and the flight control device is blocked, forcing the drone to automatically land or drive it away, thereby achieving the purpose of low-altitude safety protection.

[0028] The embodiment of the present application does not limit the size and working mode of the IFA antenna. In some implementations, the electrical length of the IFA antenna can be one-quarter wavelength of the working frequency band signal of the first antenna 120. In some embodiments, the first antenna 120 can be multiplexed as a cellular communication antenna, a WiFi antenna, or a Bluetooth communication antenna. In other embodiments, the first antenna 120 can also work in conjunction with an existing cellular communication antenna, WiFi antenna, or Bluetooth communication antenna of the electronic device.

[0029] In some implementations, the shape of the rear camera decorative ring can be any of the following shapes: circular, square, polygonal. In some implementations, the equivalent electrical length of the rear camera decorative ring can be half the wavelength of the working frequency band signal of the second antenna 130.

[0030] The target device (such as a drone) may be of various types, and its communication operating frequency band is unknown, and its communication operating frequency band may be of various types. Therefore, the frequency band of the interference signal emitted by the second antenna 130 should adapt to the changing requirements of the communication operating frequency band of the target device. In some implementations, the electronic device 100 may further include a filtering circuit, which is electrically connected to the second antenna 130 and is used to adjust the operating frequency band of the second antenna 130. The filtering circuit may be an LC filtering circuit. For example, for interference sources of different frequency bands (i.e., communication signals of the target device), the operating frequency of the second antenna 130 may be tuned using an LC element. In some embodiments, the second antenna 130 (i.e., deco) may be loaded with an LC reactance element and a grounding circuit for impedance matching or tuner tuning.

[0031] Since the feed source 110 is connected to the second antenna 130 through the first antenna 120 and the switch circuit 140 in succession, the excitation signal is fed to the second antenna 130. In some implementations, the switch circuit 140 may include a metal sheet, which may be used as a feed line. The metal sheet may be a planar metal piece of a flexible circuit board or a laser direct structuring (LDS). The feed line refers to a signal line, which can effectively transmit signal energy and transmit the transmission signal power to the input end of the transmitting antenna with minimal loss; or transmit the signal received by the antenna to the receiving end with minimal loss, and at the same time, it should not generate stray interference signals. The switch circuit 140 may include multiple types of switches, such as a single-pole double-throw switch, which is simple and reliable. In some embodiments, the metal sheet may be loaded with an LC reactance element and a grounding circuit for impedance matching (of the feed line).

[0032] In some implementations, as a directional antenna, the second antenna 130 can be used as a satellite antenna for satellite communications, or for emergency communications.

[0033] In some implementations, the electronic device 100 may further include a third antenna. The third antenna is located on the second side of the electronic device and is electrically connected to the feed source 110. The third antenna is an inverted F antenna. The electronic device 100 may include two or more inverted F antennas, wherein the third antenna may be any inverted F antenna different from the first antenna. The second side may be an adjacent side or an opposite side of the first side. The control circuit 150 is connected to the third antenna, and in the omnidirectional detection and positioning mode, the first antenna 120 and the third antenna can be in working state; in the directional radiation mode, the second antenna 130 is in working state.

[0034] In some embodiments, the third antenna may be connected to the second antenna 130 via the switch circuit 140. The control circuit 150 may control the first antenna 120 or the third antenna to independently work in conjunction with the second antenna 130. That is, in the omnidirectional detection and positioning mode, the control circuit 150 may control the first antenna 120 or the third antenna to be independently in a working state; in the directional radiation mode, the control circuit 150 controls the second antenna 130 to be in a working state.

[0035] In the embodiment of the present application, the inverted F antenna on the surface of the electronic device and the original metal decorative ring (deco) are connected through a switch circuit, respectively as an omnidirectional detection antenna and a jamming antenna in a directional mode, for detecting, locating and jamming the target device. In addition to having its own functions, the electronic device does not need to have a separate antenna and can also be used as a detection and jamming device. Since the original antenna and structural parts (i.e., deco) of the electronic device are used, the antenna occupies a small space and has a simple structure.

[0036] The electronic device according to the embodiment of the present application is further described below in combination with some possible implementation methods of the embodiment of the present application.

[0037] Figure 2 yes Figure 1 A schematic diagram of a possible implementation of an electronic device. Figure 2 The electronic device according to the embodiment of the present application is introduced in detail. Figure 2 The IFA antenna and feeding point are designed on the top of the mobile phone, and a flexible circuit board (loaded with a switching circuit) perpendicular to the IFA antenna is electrically connected to the mobile phone deco. Figure 2 This is a rear view of the mobile phone display when it is placed vertically, and the dotted line adjacent to the outer frame (solid line) is the reference ground. For ease of explanation, the embodiment of the application takes the direction of the mobile phone display when it is placed vertically as the reference direction, and the vertical direction includes the up and down directions; the horizontal direction of the front and back vertically placed on the mobile phone display is the positive and negative direction (or the front and back direction), and the direction of the left and right sides of the mobile phone display parallel to the display is the left and right direction.

[0038] like Figure 2 As shown, the mobile phone 200 may include a first antenna 220, a second antenna 230, a switch circuit 240, a feed source and a control circuit (not shown).

[0039] The first antenna 220 is located at the top edge of the mobile phone and is electrically connected to the feed source. The first antenna is an inverted F antenna. The electrical size of the IFA antenna can be a quarter wavelength of the working frequency band signal of the first antenna 120.

[0040] The second antenna 230 is composed of a rear camera decorative ring located on the back of the mobile phone, and the rear camera decorative ring can be circular. The rear camera decorative ring can work in a patch antenna mode, that is, the entire mobile phone is used as a reflector, and the rear camera decorative ring works in a patch antenna mode. The second antenna 230 has the characteristics of a directional antenna with high gain and is suitable for transmitting interference signals.

[0041] The switch circuit 240 is connected to the first antenna 220 and the second antenna 230. The switch circuit 240 may include a metal sheet (such as a copper sheet), and the metal sheet is a flexible circuit board. When the switch circuit 240 is in the on state, the first antenna 220 and the second antenna 230 are connected, a flexible circuit board is parasitic in the first antenna 220, and the feed source is connected to the second antenna 230 through the flexible circuit board parasitic in the first antenna 220. When the switch circuit 240 is in the off state, the first antenna 220 and the second antenna 230 are disconnected.

[0042] The control circuit is connected to the switch circuit 240 and is used to perform the following operations: in response to the electronic device being in the detection and positioning mode, the switch circuit 240 is controlled to be in the disconnected state; in response to the electronic device being in the directional transmission mode, the switch circuit 240 is controlled to be in the connected state.

[0043] When the switch circuit 240 is in the off state, the first antenna 220 is used as a detection antenna to search for the location and communication working frequency band of the target device, and the target device can be, for example, a drone. When the switch circuit 240 is in the on state, the first antenna 220 can be used as a conductor, and the feed source is connected to the second antenna 230 through the first antenna 220. The feed source feeds the excitation signal to the second antenna 230, and excites the second antenna 230 (i.e., deco) to generate directional beam radiation. Since the second antenna 230 has directional and high-gain characteristics, the user can adjust the beam direction of the second antenna 230 toward the position of the target device, and send an interference signal to the target device through the second antenna 230. Thus, by controlling the on and off of the switch circuit 240 (including the FPC), the feeding of the second antenna 230 is controlled, and the directional radiation mode and the detection mode of the conventional antenna are switched.

[0044] The mobile phone 200 may further include an LC filter circuit, which is electrically connected to the second antenna 230 and is used to adjust the operating frequency band of the second antenna 230. For example, the operating frequency of the second antenna 230 may be tuned by using an LC element for interference sources of different frequency bands.

[0045] In the embodiment of the present application, the original inverted F antenna of the electronic device and the metal decorative ring (deco) on the surface are connected through a switch circuit, respectively as an omnidirectional detection antenna and a jamming antenna in a directional mode, for detecting and jamming the target device. In addition to having its own original functions, the electronic device does not need to have a separate antenna, and can also be used as a detection and jamming device. Since the original antenna and structural parts of the electronic device are used, the antenna occupies a small space and has a simple structure.

[0046] Figure 3 for Figure 2 A schematic diagram of a mobile phone antenna structure. Figure 3 As shown, the mobile phone 300 may include a first antenna 320, a second antenna 330 and a switch circuit 340. The first antenna 320 is an IFA antenna, electrically connected to a feed source. The second antenna 330 is a rear camera deco, which is a circular metal ring. The switch circuit 340 includes a flexible circuit board, which may be made of a copper sheet. The switch circuit 340 connects the IFA antenna to the edge of the circular deco through the flexible circuit board.

[0047] Figure 4 for Figure 3 Schematic diagram of the simulation of the directivity pattern of the DECO antenna of a mobile phone. Figure 4 As shown, the DECO antenna has a good directional beam and is suitable for applications related to detecting interference sources, such as transmitting high-power interference signals to drones.

[0048] Combination of the above Figures 1 to 4 The device embodiment of the present application is described in detail. Figure 5 The method embodiment of the present application is described in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous device embodiment.

[0049] Figure 5 It is a flowchart of a method for detecting interference provided in an embodiment of the present application. Figure 5 The method is applied to an electronic device. The electronic device may be, for example, a mobile phone or a tablet computer. The electronic device comprises: a feed source; a first antenna, located at a first side of the electronic device and electrically connected to the feed source, the first antenna being an inverted F antenna; a second antenna, consisting of a metal decorative ring located on the surface of the electronic device; a switch circuit, connected to the first antenna and the second antenna, the first antenna and the second antenna being connected when the switch circuit is in an on state, and the first antenna and the second antenna being disconnected when the switch circuit is in an off state; a control circuit, connected to the switch circuit, for performing the following operations: in response to the electronic device being in a detection and positioning mode, controlling the switch circuit to be in an off state; in response to the electronic device being in a directional transmission mode, controlling the switch circuit to be in an on state.

[0050] like Figure 5 As shown, the method may mainly include steps S510 to S530, which are described in detail below.

[0051] It should be pointed out that the size of the serial numbers of the steps in the embodiments of the present application does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0052] In step S510, the location and operating frequency band of the target device are determined using the first antenna.

[0053] The target device may be, for example, a drone. In response to the electronic device being in a detection and positioning mode, the switch circuit is controlled to be in an off state, and the first antenna is used to detect the drone communication signal and perform direction finding and positioning to determine the location of the target device and the communication operating frequency band.

[0054] In step S520, the frequency band of the interference signal is determined according to the working frequency band of the target device.

[0055] For example, the frequency band where the interference signal is located can be determined based on the communication working frequency band of the detected drone.

[0056] In step S530, an interference signal is transmitted to the target device via the second antenna according to the current location of the target device.

[0057] The user can adjust the posture of the electronic device according to the current position of the target device, so that the beam direction of the second antenna is toward the current position of the target device, and transmit interference signals to the target device. Taking the target device as a drone as an example, the communication between the drone and its flight control device is blocked, forcing the drone to automatically land or drive it away, thereby achieving the purpose of low-altitude safety protection.

[0058] Optionally, the metal decorative ring is a rear camera decorative ring.

[0059] Optionally, the equivalent electrical length of the rear camera decorative ring is half the wavelength of a signal in the working frequency band of the second antenna.

[0060] Optionally, the electronic device further includes a filter circuit. The filter circuit is electrically connected to the second antenna and is used to adjust the operating frequency band and / or impedance matching of the second antenna. The filter circuit may be an LC filter circuit.

[0061] Optionally, the shape of the rear camera decoration ring is any one of the following shapes: circular, square, polygonal.

[0062] Optionally, the switch circuit includes a metal sheet, and the metal sheet is a flexible circuit board or a planar metal piece with a laser-printed metal structure.

[0063] Optionally, the electronic device further includes a third antenna. The third antenna is located at the second side of the electronic device and is electrically connected to the feed source. The third antenna is an inverted F antenna.

[0064] An embodiment of the present application also provides a non-volatile computer-readable storage medium having instructions stored thereon, the instructions being used to execute any of the methods or training methods for controlling an electronic device as described above.

[0065] The electronic device in the embodiment of the present application may also be referred to as a terminal device, terminal, user equipment (UE), user terminal, access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote terminal, remote station, mobile device, wireless communication device, user agent or user device. The terminal device in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, and may be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a laptop, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using a sidelink signal. The cellular phone and the smart home device communicate with each other without relaying the communication signal through the base station.

[0066] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a machine-readable storage medium, or transmitted from one machine-readable storage medium to another machine-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The machine-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0067] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments of the present disclosure can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0068] It should be understood that in the various embodiments of the present application, "first", "second", etc. are used to distinguish different objects rather than to describe a specific order. The size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0069] In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0070] In several embodiments provided in the present application, it should be understood that when a certain part is said to be "connected" or "connected" to another part, it means that the part can not only be "directly connected" but also "electrically connected" with another element intervening therebetween. In addition, the term "connected" also means that the part is "physically connected" and "wirelessly connected". In addition, when a certain part is said to "include" a certain element, unless otherwise stated, it means that the certain part can include another element, rather than excluding the other element.

[0071] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0072] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0073] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An electronic device, characterized in that: include: Feeds; A first antenna, located at a first side of the electronic device and electrically connected to the feed source, wherein the first antenna is an inverted F antenna; A second antenna, formed by a metal decorative ring located on the surface of the electronic device; a switch circuit connected to the first antenna and the second antenna, wherein when the switch circuit is in an on state, the first antenna and the second antenna are connected, and when the switch circuit is in an off state, the first antenna and the second antenna are disconnected; A control circuit is connected to the switch circuit and is used to perform the following operations: In response to the electronic device being in a detection and positioning mode, controlling the switch circuit to be in an off state; In response to the electronic device being in a directional transmission mode, the switch circuit is controlled to be in an on state.

2. The electronic device according to claim 1, characterized in that: The metal decorative ring is a rear camera decorative ring.

3. The electronic device according to claim 2, characterized in that: The electronic device further comprises: The filtering circuit is electrically connected to the second antenna and is used to adjust the working frequency band and / or impedance matching of the second antenna.

4. The electronic device according to claim 2, characterized in that: The equivalent electrical length of the rear camera decorative ring is half the wavelength of the signal in the working frequency band of the second antenna.

5. The electronic device according to claim 2, characterized in that: The shape of the rear camera decorative ring is any one of the following shapes: Circle, square, polygon.

6. The electronic device according to claim 1, characterized in that: The switch circuit comprises a metal sheet, and the metal sheet is a flexible circuit board or a planar metal piece with a laser-printed metal structure.

7. The electronic device according to claim 1, characterized in that: include: The third antenna is located at the second side of the electronic device and is electrically connected to the feed source. The third antenna is an inverted F antenna.

8. The electronic device according to any one of claims 1 to 7, characterized in that: The electronic device is any one of the following devices: Mobile phones and tablets.

9. A method for detecting interference, characterized in that: Applicable to electronic equipment, the electronic equipment comprising: Feeds; A first antenna, located at a first side of the electronic device and electrically connected to the feed source, wherein the first antenna is an inverted F antenna; A second antenna, formed by a metal decorative ring located on the surface of the electronic device; a switch circuit connected to the first antenna and the second antenna, wherein when the switch circuit is in an on state, the first antenna and the second antenna are connected, and when the switch circuit is in an off state, the first antenna and the second antenna are disconnected; A control circuit is connected to the switch circuit and is used to perform the following operations: In response to the electronic device being in a detection and positioning mode, controlling the switch circuit to be in an off state; In response to the electronic device being in a directional transmission mode, controlling the switch circuit to be in an on state; The method comprises: Determine the current location and operating frequency band of the target device using the first antenna; Determining the frequency band of the interference signal according to the operating frequency band of the target device; The interference signal is transmitted to the target device through the second antenna according to the current position.

10. A non-volatile computer-readable storage medium, characterized in that: A computer program is stored thereon, which is used to implement the method according to claim 9 when being executed.

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