CN216209786U - Radio frequency cable in-place detection structure and electronic equipment - Google Patents

Abstract

The application provides a radio frequency cable detects structure and electronic equipment on throne relates to electron technical field, and this detection structure can realize through every radio frequency cable's in three radio frequency cables of two discernment interfaces discernment connection status to fix a position the radio frequency cable that appears unusually, and this structure low cost. The detection structure comprises a first radio frequency cable connection structure, a second radio frequency cable connection structure and a third radio frequency cable connection structure. The first radio frequency cable connecting structure is connected with the second radio frequency cable connecting structure in series, the third radio frequency cable connecting structure is connected with the second radio frequency cable connecting structure in series, and the first radio frequency cable connecting structure is connected with the third radio frequency cable connecting structure in parallel. One end of the first radio frequency cable connecting structure and one end of the third radio frequency cable connecting structure, which are far away from the second radio frequency cable connecting structure, are respectively connected with a first detection interface and a second detection interface, and one end of the second radio frequency cable connecting structure, which is far away from the first radio frequency cable connecting structure, is connected with the ground.

Description

Radio frequency cable in-place detection structure and electronic equipment

Technical Field

The application relates to the technical field of electronics, especially, relate to a radio frequency cable detection structure and electronic equipment on throne.

Background

In recent years, with the wide application of multi-frequency and multi-mode products, the application of a plurality of radio frequency connecting lines in various products is increasing. On one hand, the radio frequency connecting line can effectively reduce the large insertion loss of the non-sub-band routing caused by different multi-Input multi-Output (MIMO) technical specifications; on the other hand, due to the variety of product forms, the problem that the antenna feed point and the main radio frequency are on different Printed Circuit Boards (PCBs) and radio frequency signal conduction needs to be carried out among the PCBs is solved, and the radio frequency connecting line can effectively solve the problem.

However, when the rf connection line is not well fastened, the rf signal in the product cannot be transmitted normally, which affects the normal use of the basic communication function of the product. In the production process of a factory, the radio frequency wires can be not buckled due to loose buckling, leakage buckling or misoperation, so that the production yield of the product is reduced.

In the prior art, when a single radio frequency cable or 2 radio frequency cables exist in a product, the connection state of the radio frequency cables can be judged by using a high-low voltage interface through a single or two General-purpose input/output (GPIO) interfaces or similar interfaces and through corresponding hardware design.

However, when three radio frequency cables are connected, a new problem exists in simultaneously judging the connection state of the radio frequency cables. On one hand, the number of platform interfaces is limited, and each radio frequency cable is difficult to support independent detection; on the other hand, if adopt series connection to detect, probably lead to the hardware to walk the line too much, the false alarm rate rises, simultaneously, detect out behind the radio frequency cable lock unusual, also can't fix a position specifically that which radio frequency cable is buckled and unusual, and then need demolish whole radio frequency cables when probably leading to production, do over again. This can greatly reduce the detection efficiency and can result in increased cost of production.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a radio frequency cable is detection structure and electronic equipment on throne, can solve and require height, the overall cost is high to platform identification interface quantity, perhaps unable accurate positioning unusual radio frequency cable, the problem that the overall arrangement is complicated, the realization is through every radio frequency cable's in three radio frequency cables of two identification interface discernments connection status to fix a position unusual radio frequency cable appearing, this structure walks the line overall arrangement simple moreover, low cost.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, the present application provides an in-place rf cable detection structure, including: the first radio frequency cable connection structure, the second radio frequency cable connection structure and the third radio frequency cable connection structure. The first radio frequency cable connecting structure is connected with the second radio frequency cable connecting structure in series, the third radio frequency cable connecting structure is connected with the second radio frequency cable connecting structure in series, and the first radio frequency cable connecting structure is connected with the third radio frequency cable connecting structure in parallel.

One end of the first radio frequency cable connecting structure, which is far away from the second radio frequency cable connecting structure, is connected with a first detection interface, one end of the third radio frequency cable connecting structure, which is far away from the second radio frequency cable connecting structure, is connected with a second detection interface, and one end of the second radio frequency cable connecting structure, which is far away from the first radio frequency cable connecting structure or the third radio frequency cable connecting structure, is connected with the ground.

The first detection interface and the second detection interface can both transmit a high level, output the state of the first detection interface and the state of the second detection interface according to the connection state of the radio frequency cable connection structure, and provide the function of detecting the state of the first detection interface, wherein the state of the first detection interface is the high level or the low level, and the state of the second detection interface is the high level or the low level. And judging the connection states of the first radio frequency cable connection structure, the second radio frequency cable connection structure and the third radio frequency cable connection structure by detecting the state of the first detection interface and the state of the second detection interface.

On this basis, including three radio frequency cable connection structure among the technical scheme of this application, through all establish ties with another radio frequency cable connection structure with wherein two radio frequency cable connection structure to keep the parallelly connected form of these two radio frequency cable connection structure, realized setting up a detection interface respectively on these two radio frequency cable connection structure, through the height of voltage on two detection interfaces, can judge three radio frequency cable connection structure's connection status, and can fix a position and connect unusual radio frequency cable connection structure. The detection structure only needs to occupy two interfaces, reduces the occupation of the space in the electronic equipment, is low in cost, does not need complex wiring connection, can identify high and low levels through the detection interface, and is simple in overall detection judgment logic.

In a possible design manner of the first aspect, when the state of the first detection interface is a low level and the state of the second detection interface is a low level, the first radio frequency cable connection structure, the second radio frequency cable connection structure, and the third radio frequency cable connection structure are all in a normal connection state. The embodiment of the application shows a specific detection form of the detection structure.

In a possible design manner of the first aspect, when the state of the first detection interface is a low level, but the state of the second detection interface is a high level, the first radio frequency cable connection structure and the second radio frequency cable connection structure are both in a normal connection state, and the third radio frequency cable connection structure is in an abnormal connection state. The embodiment of the application shows a specific detection form of the detection structure.

In a possible design manner of the first aspect, when the state of the first detection interface is a high level, but the state of the second detection interface is a low level, both the second radio frequency cable connection structure and the third radio frequency cable connection structure are in a normal connection state, and the first radio frequency cable connection structure is in an abnormal connection state. The embodiment of the application shows a specific detection form of the detection structure.

In a possible design manner of the first aspect, when the state of the first detection interface is a high level and the state of the second detection interface is a high level, the first radio frequency cable connection structure and the third radio frequency cable connection structure are both in an abnormal connection state, and/or the second radio frequency cable connection structure is in an abnormal connection state. The embodiment of the application shows a specific detection form of the detection structure.

In a possible design manner of the first aspect, when both the first radio frequency cable connection structure and the third radio frequency cable connection structure are in an abnormal connection state, the second radio frequency cable is in a normal connection state or an abnormal connection state;

when the second radio frequency cable connection structure is in the abnormal connection state, the first radio frequency cable is in the normal connection state or the abnormal connection state, and the third radio frequency cable is in the normal connection state or the abnormal connection state. The embodiment of the application shows a specific detection form of the detection structure.

In a possible design manner of the first aspect, the first radio frequency cable connection structure includes a first radio frequency cable, a first connection seat, and a second connection seat, a first end of the first radio frequency cable is connected to the first connection seat, and a second end of the first radio frequency cable is connected to the second connection seat;

the second radio frequency cable connecting structure comprises a second radio frequency cable, a third connecting seat and a fourth connecting seat, wherein the first end of the second radio frequency cable is connected to the third connecting seat, and the second end of the second radio frequency cable is connected to the fourth connecting seat;

the third radio frequency cable connecting structure comprises a third radio frequency cable, a fifth connecting seat and a sixth connecting seat, wherein the first end of the third radio frequency cable is connected to the fifth connecting seat, and the second end of the third radio frequency cable is connected to the sixth connecting seat.

On this basis, the embodiment of the present application shows a specific form of the radio frequency cable connection structure, and the detection structure can be used for detecting the connection state between the radio frequency cable and the connection seat in the radio frequency cable connection structure.

In a possible design manner of the first aspect, the second connecting seat and the fourth connecting seat are connected in series through a first element, the sixth connecting seat and the fourth connecting seat are connected in series through a second element, a third element is connected in series between the third connecting seat and the grounding point, and the first element, the second element and the third element are all used for passing through a direct current signal and blocking a radio frequency signal.

On this basis, first component, second component and third component all can adopt the inductance, and through set up the inductance between the radio frequency cable connection structure of difference, the inductance can effectually hinder the transmission of radio frequency signal between different radio frequency cable connection structure, has avoided the radio frequency signal among the different radio frequency cable connection structure to influence each other. And the inductance does not influence the normal transmission of the direct current electric signal, so that the detection structure can judge the connection state of each radio frequency cable connection structure through whether the direct current electric signal is normally transmitted or not.

In a possible design manner of the first aspect, the first connecting seat, the second connecting seat, the third connecting seat, the fourth connecting seat, the fifth connecting seat and the sixth connecting seat are all connected with a fourth element, and the fourth element is used for blocking a direct current signal from passing through a radio frequency signal.

On this basis, through set up the fourth original paper at each radio frequency cable connection structure's both ends, the fourth original paper can be for electric capacity, and electric capacity can satisfy the radio frequency signal in each radio frequency cable connection structure and normally pass through for corresponding radio frequency access can normally work, and prevents that the direct current signal in the radio frequency cable connection structure from passing through, avoids direct current signal to produce the influence to the normal work of radio frequency access.

In a possible design manner of the first aspect, one end of each of the first radio frequency cable connection structure, the second radio frequency cable connection structure, and the third radio frequency cable connection structure is connected to an antenna, and the other end of each of the first radio frequency cable connection structure, the second radio frequency cable connection structure, and the third radio frequency cable connection structure is connected to a radio frequency transceiver circuit. The embodiment of the application provides a specific form of an in-place detection structure of a radio frequency cable, namely, one end of a first radio frequency cable connection structure is connected with a first antenna, and the other end of the first radio frequency cable connection structure is connected with a first radio frequency transceiving circuit; one end of the second radio frequency cable connecting structure is connected with a second antenna, and the other end of the second radio frequency cable connecting structure is connected with a second radio frequency transceiving circuit; one end of the third radio frequency cable connecting structure is connected with a third antenna, and the other end of the third radio frequency cable connecting structure is connected with a third radio frequency transceiver circuit.

In a second aspect, the present application provides an electronic device, which includes a main body and an rf cable in-place detection structure provided in the first aspect and any one of the possible design manners described above, where the rf cable in-place detection structure is disposed in the main body.

It can be understood that, the beneficial effects achieved by the electronic device according to the second aspect provided above can refer to the beneficial effects in the first aspect and any possible design manner thereof, and are not described herein again.

Drawings

FIG. 1 is a diagram illustrating a hardware connection structure inside an electronic device according to the prior art;

FIG. 2 is a diagram illustrating another hardware connection structure inside an electronic device according to the prior art;

FIG. 3 is a diagram illustrating another prior art hardware connection structure inside an electronic device;

FIG. 4 is a prior art RF cable in-situ detection structure;

FIG. 5 is another prior art RF cable in-situ detection configuration;

FIG. 6 is a diagram of another prior art RF cable in-situ detection structure;

fig. 7 is a schematic diagram of an electronic device according to an embodiment of the present application;

fig. 8 is a schematic view of an in-place rf cable detection structure according to an embodiment of the present disclosure.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the embodiments of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

It is to be understood that the terminology used in the description of the various described examples herein is for the purpose of describing particular examples only and is not intended to be limiting. As used in the description of the various illustrated examples, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

In the present application, "at least one" means one or more, "a plurality" means two or more. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. The term "and/or" is an associative relationship that describes an associated object, meaning that three relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in the present application generally indicates that the former and latter related objects are in an "or" relationship.

It is also to be understood that, in the present application, unless otherwise explicitly specified or limited, the term "coupled" is to be interpreted broadly, e.g., "coupled" may be a fixed connection, a sliding connection, a removable connection, an integral part, or the like; may be directly connected or indirectly connected through an intermediate.

It will be further understood that the terms "comprises," "comprising," "includes," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It should be appreciated that reference throughout this specification to "one embodiment," "another embodiment," "one possible design" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment of the present application" or "in another embodiment of the present application" or "in one possible design" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In order to facilitate understanding of the technical solutions of the present application, before writing the embodiments of the present application, a brief description is made of a technical background related to the technical solutions of the present application, that is, an application of a radio frequency cable in an electronic device.

Referring to fig. 1, fig. 1 is a schematic diagram of a hardware connection structure inside an electronic device in the prior art. The electronic device may be a mobile phone, as shown in fig. 1, which shows a schematic connection diagram between two PCBs in the mobile phone, where a PCB1 represents a main board in the mobile phone, and the main board is provided with a main rf module; PCB2 represents another main board in the handset, on which the antenna feed points of the three antennas are arranged; the three lines in the figure represent three radio frequency cables. As shown in fig. 1, three antenna feed points on the PCB2 are connected to a main rf module on the PCB1 through three rf cables, respectively, and flexible setting of three antenna positions can be achieved through the three rf cables, and such structural setting is favorable for improving performances such as antenna isolation of multiple antennas.

Referring to fig. 2, fig. 2 is a schematic diagram of another hardware connection structure inside an electronic device in the prior art. The electronic device may be a mobile phone, as shown in fig. 2, which shows a schematic connection diagram between two PCBs in the mobile phone, where a PCB1 and a PCB2 respectively represent two main boards inside the mobile phone, and a main radio frequency module is disposed on the PCB 1; an antenna feed point of the antenna is arranged on the PCB 2; the three lines in the figure represent three radio frequency cables. As shown in fig. 2, the components on the PCB1 can also be connected by rf cables without using traces on the PCB1, and the antenna feed point on the PCB2 can be connected to the main rf module on the PCB1 by rf cables. The radio frequency cable arranged on the PCB1 replaces the routing inside the PCB1, and the insertion loss of the routing can be effectively reduced. In addition, the connection of the radio frequency cables realizes that the feed point of the antenna and the main radio frequency are on two different PCBs, the flexible setting of the position of the antenna can be realized, and the performances of antenna isolation and the like of multiple antennas can be promoted.

Referring to fig. 3, fig. 3 is a schematic diagram illustrating another hardware connection structure inside an electronic device in the prior art. The electronic device may be a larger display or a flat panel. The electronic device in the figure is a flat plate, and due to the large shape of the flat plate, the antennas arranged in the flat plate are dispersed, and the antenna feed points may be distributed on three or more than three PCB boards. As shown in fig. 3, three PCBs in a flat panel are shown, which are PCB1, PCB2 and PCB3, wherein the PCB1 is provided with a main rf module, and antenna feeding points are distributed on both the PCB2 and the PCB 3. In order to realize the connection between the antenna feed and the main rf module, an rf cable may be used for the connection. In fig. 3, two antenna feed points are arranged on the PCB2, so that the PCB2 and the PCB1 are connected by two rf cables, and the PCB3 is provided with one antenna feed point, so that the PCB3 and the PCB1 are connected by one rf cable.

The PCB1 and the PCB2 respectively represent two main boards inside the mobile phone, wherein the PCB1 is provided with a main rf module; an antenna feed point of the antenna is arranged on the PCB 2; the three lines in the figure represent three radio frequency cables. As shown in fig. 2, the components on the PCB1 can also be connected by rf cables without using traces on the PCB1, and the antenna feed point on the PCB2 can be connected to the main rf module on the PCB1 by rf cables. The radio frequency cable arranged on the PCB1 replaces the routing inside the PCB1, and the insertion loss of the routing can be effectively reduced. In addition, the connection of the radio frequency cables realizes that the feed point of the antenna and the main radio frequency are on two different PCBs, the flexible setting of the position of the antenna can be realized, and the performances of antenna isolation and the like of multiple antennas can be promoted.

When the rf connection line is not well fastened, the rf signal in the product cannot be transmitted normally, which affects the normal use of the basic communication function of the product. In the production process of a factory, the radio frequency wires can be not buckled due to loose buckling, leakage buckling or misoperation, so that the production yield of the product is reduced.

When a single radio frequency cable exists in the electronic equipment, the connection state of the radio frequency cable can be judged by using the high-low voltage interface through a single GPIO interface or an interface with a similar function with the GPIO interface and through corresponding hardware design. When two radio frequency cables exist in the electronic equipment, the connection state of the radio frequency cables can be judged by setting the two GPIO interfaces and utilizing the high-low voltage interfaces through corresponding hardware design.

Referring to fig. 4, fig. 4 is a prior art rf cable presence detection structure, and fig. 4 shows a situation when a single rf cable exists in an electronic device. As shown in fig. 4, a radio frequency path includes a first radio frequency Cable1, wherein a first end of the first radio frequency Cable1 is connected to a first capacitor C1, the other end of the first capacitor C1 is connected to an antenna, a second end of the first radio frequency Cable1 is connected to a second capacitor, and the other end of the second capacitor is connected to a radio frequency transceiver circuit. Typically, both ends of the first rf Cable1 are connected to connection sockets in the rf path.

In order to detect whether two ends of the first radio frequency Cable1 in the radio frequency path are in a good connection state with the connection seat, a GPIO interface is connected to the connection seat connected to the first end of the first radio frequency Cable1, and the second end of the first radio frequency Cable1 is connected to the ground. When the second end of the first rf Cable1 is connected to ground, an inductor L1 with a large inductance is provided.

The capacitance values of the first capacitor and the second capacitor can be determined according to the frequency of the radio-frequency signal in the radio-frequency access, the capacitance values of the first capacitor and the second capacitor can meet the requirement that the radio-frequency signal normally passes through, and therefore the first capacitor and the second capacitor can achieve the effect that the radio-frequency signal normally passes through and the direct-current voltage is blocked from passing through.

The inductance of the inductor L1 should be set as large as possible, and the inductance can also be determined according to the frequency of the rf signal in the rf path, and preferably the inductance of the inductor L1 can form a good block to the rf signal. By the arrangement, the inductor can normally pass direct-current voltage and prevent radio-frequency signals from passing through.

The GPIO interface can output a high level, can output the state of self according to the connection state of the radio frequency connection structure, and can detect the state that self is located: at a high level or a low level.

Through GPIO interface output high level, if the radio frequency cable is in connecting normal state, then the high level can be through the radio frequency cable, then carries out ground connection through the inductance L1 of connecting at radio frequency cable second end, at this moment, detects at the GPIO interface, can detect that the GPIO interface is in the low level state, shows that the radio frequency cable is in connecting normal state.

When the GPIO interface outputs a high level, if the radio frequency cable is in an abnormal connection state, the high level cannot pass through the radio frequency cable, and cannot be grounded. At this time, the GPIO interface is detected to be in a high level state, which indicates that the rf cable is in an abnormal connection state.

A detection structure is further provided in the prior art, referring to fig. 5, fig. 5 is another structure for detecting the presence of the rf cable in the prior art, and fig. 5 shows a situation when three rf cables are present in the electronic device. As shown in fig. 5, the electronic device includes three radio frequency paths: the radio frequency Cable comprises a first radio frequency channel, a second radio frequency channel and a third radio frequency channel, wherein the first radio frequency channel is connected with a first radio frequency Cable1, the second radio frequency channel is connected with a second radio frequency Cable2, and the third radio frequency channel is connected with a third radio frequency Cable 3. In the first radio frequency path, a GPIO1 interface is connected to the connecting seat connected to the first end of the first radio frequency Cable1, in the second radio frequency path, a GPIO2 interface is connected to the connecting seat connected to the first end of the second radio frequency Cable2, and in the third radio frequency path, a GPIO3 interface is connected to the connecting seat connected to the first end of the third radio frequency Cable 3. The structure of each rf path is the same as that of the rf path introduced in fig. 4 (the portion connected to the rf transceiver circuit is omitted in fig. 5), and the GPIO interface is provided in each rf path to detect the connection state of the rf cable in each rf path. According to the scheme, each radio frequency cable needs to be matched with one detection interface, more detection positions are needed, the number of the interfaces of the detection platform is limited, and independent detection of each radio frequency cable cannot be supported.

A detection structure is further provided in the prior art, referring to fig. 6, fig. 6 is a structure for detecting the presence of a radio frequency cable in the prior art, and fig. 6 shows a situation when three radio frequency cables are present in an electronic device. As shown in fig. 6, the electronic device includes three rf paths, each of which has the same structure as the rf path shown in fig. 4, wherein the three rf paths are connected in series. Because the three radio frequency paths are connected in series, only one GPIO interface is arranged on one radio frequency path. However, when any one of the three radio frequency cables in the three radio frequency paths is abnormal in connection, the set GPIO interface cannot determine which specific radio frequency cable is abnormal, and it is necessary to detect each radio frequency cable again. In addition, if the three rf paths are respectively located on the three PCBs, the three rf paths are connected in series, which makes hardware implementation more complicated. And the more cables connected in series, the higher the false alarm rate of detection.

The problems that in the prior art, requirements for the number of platform identification interfaces are high, overall cost is high, or abnormal radio frequency cables cannot be accurately positioned, and layout and wiring are complex are solved. The embodiment of the application provides a radio frequency cable detection structure and electronic equipment that are in place, this radio frequency cable detection structure and electronic equipment that are in place can realize through every radio frequency cable's among three radio frequency cables of two identification interface discernment connection status to fix a position the radio frequency cable that appears unusually, this structure is walked the line overall arrangement in addition and is simple, low cost. The following describes an embodiment of the present application with reference to fig. 7 and 8.

The embodiment of the application provides an electronic equipment, and the electronic equipment can include mobile phone (mobile phone), panel computer (pad), TV, intelligence wearing product (for example, smart watch, intelligent bracelet), internet of things (IOT), Virtual Reality (VR) terminal device, Augmented Reality (AR) terminal device, unmanned aerial vehicle etc. have the radio frequency cable and detect the structure in place and have the electronic product of FM radio function. The embodiment of the present application does not specifically limit the specific form of the electronic device.

Referring to fig. 7, fig. 7 is a schematic view of an electronic device according to an embodiment of the present disclosure. As shown in fig. 7, the electronic device in the embodiment of the present application is a mobile phone with an on-site detection structure of a radio frequency cable, a fm radio in the mobile phone receives a corresponding fm signal through an antenna, and the fm signal is finally converted into an audio signal through a series of processes and is played through a speaker. The method comprises the steps of filtering through a filter circuit, then amplifying a signal through an amplifier, and enabling the signal processed by the amplifier to enter a chip for processing.

The mobile phone comprises a body 100 and a radio frequency cable in-place detection structure 200, wherein the radio frequency cable in-place detection structure 200 is used for detecting the connection state of a radio frequency channel in the electronic equipment. The radio frequency cable in-place detection structure 200 is disposed in the body 100, specifically, the body 100 may include a screen, a middle frame and a back plate, a plurality of circuit boards are disposed in the body 100, the circuit boards are disposed on the back of the screen, and the radio frequency cable in-place detection structure 200 may be disposed on the circuit boards.

It should be noted that, in the embodiment of the present application, the first element, the second element, and the third element are all configured to pass a direct current signal and block a radio frequency signal. The fourth element in the embodiment of the present application is used for passing a radio frequency signal and blocking a direct current signal from passing. The embodiments of the present application do not limit the specific forms of the first element, the second element, the third element, and the fourth element as long as the above-described functions can be satisfied. For example, the first, second and third elements may each employ an inductor or set of inductors, and the fourth element may employ a capacitor or set of capacitors, or a combination of capacitors and inductors.

In this application embodiment, the first element, the second element, and the third element employ inductors, specifically, in this application embodiment, the first element is a first inductor, the second element is a second inductor, and the third element is a third inductor, and the first inductor, the second inductor, and the third inductor are only convenient to express and distinguish, and are not limited to one inductor, and may also be one inductor group. The fourth element adopts a capacitor, and in this embodiment of the application, the fourth element includes a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor and a sixth capacitor, where the first capacitor, the second capacitor, the third capacitor, the fourth capacitor, the fifth capacitor and the sixth capacitor are only convenient to express and distinguish, and are not limited to be one capacitor, and may also be one capacitor group.

Next, an in-place detection structure of a radio frequency cable in the embodiment of the present application is described.

Referring to fig. 8, fig. 8 is a schematic view of an in-place rf cable detection structure according to an embodiment of the present disclosure. As shown in fig. 8, an in-place rf cable detection structure provided in an embodiment of the present application includes a first detection path, a second detection path, and a third detection path, where each detection path includes an rf cable connection structure. Since there are three detection paths, the rf cable connection structure in the embodiment of the present application may refer to a first rf cable connection structure, a second rf cable connection structure, or a third rf cable connection structure. The first detection path comprises a first radio frequency Cable1, two connecting seats and two capacitors, wherein the two connecting seats are a first connecting seat and a second connecting seat respectively, and the two capacitors are a first capacitor C1 and a second capacitor C2 respectively.

The first end of first radio frequency Cable1 is connected on first connecting seat, and the second end of first radio frequency Cable1 is connected on the second connecting seat, and first radio frequency Cable1, first connecting seat and second connecting seat constitute first radio frequency Cable connection structure. One end of the first capacitor C1 is connected with the first end of the first radio frequency Cable1 through a wire, and the other end of the first capacitor C1 is connected with the first antenna P1 through a wire; one end of the second capacitor C2 is connected to the second end of the first radio frequency Cable1 through a wire, and the other end of the second capacitor C2 is connected to the first radio frequency transceiver RF1 through a wire.

The second detection path comprises a second radio frequency Cable2, two connecting seats and two capacitors, wherein the two connecting seats are a third connecting seat and a fourth connecting seat respectively, and the two capacitors are a third capacitor C3 and a fourth capacitor C4 respectively. The first end of second radio frequency Cable2 is connected on the third connecting seat, and the second end of second radio frequency Cable2 is connected on the fourth connecting seat, and second radio frequency Cable2, third connecting seat and fourth connecting seat constitute second radio frequency Cable connection structure.

One end of a third capacitor C3 is connected with the first end of a second radio frequency Cable2 through a wire, and the other end of the third capacitor C3 is connected with a second antenna P2 through a wire; one end of the fourth capacitor C4 is connected to the second end of the second radio frequency Cable2 through a wire, and the other end of the fourth capacitor C4 is connected to the second radio frequency transceiver RF2 through a wire.

It should be noted that circles in fig. 8 represent connection sockets, where a circle near the first capacitor C1 represents a first connection socket, a circle near the second capacitor C2 represents a second connection socket, a circle near the third capacitor C3 represents a third connection socket, a circle near the fourth capacitor C4 represents a fourth connection socket, a circle near the fifth capacitor C5 represents a fifth connection socket, and a circle near the sixth capacitor C6 represents a sixth connection socket.

The third detection path comprises a third radio frequency Cable3, two connecting seats and two capacitors, wherein the two connecting seats are a fifth connecting seat and a sixth connecting seat respectively, and the two capacitors are a fifth capacitor C5 and a sixth capacitor C6 respectively. The first end of third radio frequency Cable3 is connected on the fifth connecting seat, and the second end of third radio frequency Cable3 is connected on the sixth connecting seat, and third radio frequency Cable3, fifth connecting seat and sixth connecting seat constitute third radio frequency Cable connection structure.

One end of a fifth capacitor C5 is connected with the first end of the third radio frequency Cable3 through a wire, and the other end of the fifth capacitor C5 is connected with the third antenna P3 through a wire; one end of the sixth capacitor C6 is connected to the second end of the third radio frequency Cable3 through a wire, and the other end of the second capacitor C2 is connected to the third radio frequency transceiver circuit RF3 through a wire.

The first radio frequency cable connecting structure in the first detection passage is connected with the second radio frequency cable connecting structure in the second detection passage in series, the third radio frequency cable connecting structure in the third detection passage is connected with the second radio frequency cable connecting structure in the second detection passage in series, and the first radio frequency cable connecting structure in the first detection passage and the third radio frequency cable connecting structure in the third detection passage are in a parallel connection state.

Specifically, the second connecting seat in the first radio frequency cable connecting structure is connected with the fourth connecting seat in the second radio frequency cable connecting structure, and the fourth connecting seat in the second radio frequency cable connecting structure is connected with the sixth connecting seat in the third radio frequency cable connecting structure, so that the functions can be realized. That is, the first radio frequency Cable1 in the first detection path is connected in series with the second radio frequency Cable2 in the second detection path, the third radio frequency Cable3 in the third detection path is connected in series with the second radio frequency Cable2 in the second detection path, but the first radio frequency Cable1 in the first detection path and the third radio frequency Cable3 in the third detection path are in a parallel connection state.

An inductor L1 is further connected in series between the series circuits of the first radio frequency Cable1 and the second radio frequency Cable2, specifically, the second end of the first radio frequency Cable1 is connected with a second connecting seat, and the second connecting seat is directly connected with the first end of the inductor L1 or connected through a wiring; the second end of inductance L1 links to each other with the fourth connecting seat is direct or link to each other through walking the line, and the fourth connecting seat links to each other with the second end of second radio frequency Cable2 to realize the series connection of first radio frequency Cable1 and second radio frequency Cable 2.

An inductor L2 is further connected in series between the series circuit of the third radio frequency Cable3 and the second radio frequency Cable2, specifically, a second end of the third radio frequency Cable3 is connected with a sixth connecting seat, the sixth connecting seat is directly connected with a second end of the inductor L2 or connected through a wiring, and a first end of the inductor L2 is directly connected with a fourth connecting seat or connected through a wiring; the fourth connecting seat is connected with the second end of the second radio frequency Cable2, so that the series connection of the third radio frequency Cable3 and the second radio frequency Cable2 is realized.

An inductor L3 is further connected to the first end of the second Cable, the first end of the inductor L3 is connected to the first end of the second radio frequency Cable2, and the second end of the inductor L3 is connected to ground. The inductor L3 is in parallel with the second antenna P2.

In the embodiment of the present application, a GPIO interface is respectively provided on the first radio frequency Cable connection structure and the third radio frequency Cable connection structure, and specifically, a GPIO1 interface is provided on the first connection socket connected to the first end of the first radio frequency Cable1, and a GPIO2 interface is provided on the fifth connection socket connected to the first end of the third radio frequency Cable 3. The GPIO1 interface and the GPIO2 interface are respectively connected to two pins on a System On Chip (SOC), a high level is respectively output on the GPIO1 interface and the GPIO2 interface, and then the voltage on the GPIO1 interface and the GPIO2 interface is detected. Through the testing result of voltage on GPIO1 interface and the GPIO2 interface, judge the connected condition between first radio frequency Cable1 and first connecting seat and the second connecting seat in the first radio frequency Cable connection structure, judge the connected condition between second radio frequency Cable2 and third connecting seat and the fourth connecting seat in the second radio frequency Cable connection structure to and judge the connected condition between third radio frequency Cable3 and fifth connecting seat and the sixth connecting seat in the third radio frequency Cable connection structure.

It should be noted that the first capacitor C1 and the second capacitor C2 in this structure mainly function to enable the radio frequency signal in the first radio frequency path to normally pass through the first radio frequency path, and prevent the direct current voltage from conducting in the first radio frequency path. The capacitance values of the first capacitor C1 and the second capacitor C2 are mainly determined according to the frequency of the rf signal in the first rf path, so as to ensure that the rf signal in the first rf path can normally pass through the first rf path.

Similarly, the third capacitor C3 and the fourth capacitor C4 mainly function to enable the radio frequency signal in the second radio frequency path to normally pass through the second radio frequency path, and prevent the direct current voltage from conducting in the second radio frequency path. The capacitance values of the third capacitor C3 and the fourth capacitor C4 are mainly determined according to the frequency of the rf signal in the second rf path, so as to ensure that the rf signal in the second rf path can normally pass through the second rf path.

Similarly, the main function of the fifth capacitor C5 and the sixth capacitor C6 is to enable the radio frequency signal in the third radio frequency path to normally pass through the third radio frequency path, and prevent the direct-current voltage from conducting in the third radio frequency path. The capacitance values of the fifth capacitor C5 and the sixth capacitor C6 are mainly determined according to the frequency of the rf signal in the third rf path, so as to ensure that the rf signal in the third rf path can normally pass through the third rf path.

In the first radio frequency path, the second radio frequency path and the third radio frequency path, the first radio frequency Cable1 and the second radio frequency Cable2 are connected in series through the inductor L1, the third radio frequency Cable3 and the second radio frequency Cable2 are connected in series through the inductor L2, radio frequency signals pass through in the first radio frequency path, in the second radio frequency path and in the third radio frequency path, in order to avoid mutual influence of the radio frequency signals in the first radio frequency path, in the second radio frequency path and in the third radio frequency path through the inductor L1 and the inductor L2, the inductor L1 and the inductor L2 need to form a good blocking effect on the radio frequency signals, and therefore the inductance value of the inductor L1 and the inductance value of the inductor L2 need to be as large as possible.

Specifically, the inductance value of the inductor L1 needs to satisfy a certain requirement, so as to form a good block for the rf signal in the first rf path to flow to the second rf path, and form a good block for the rf signal in the second rf path to flow to the first rf path. Therefore, when determining the resistance value of the inductor L1, the frequency of the rf signal in the first rf path and the frequency of the rf signal in the second rf path may be commonly referred to for determination, so as to satisfy the above requirement.

Similarly, the inductance of the inductor L2 needs to satisfy a certain requirement to form a good block for the rf signal in the second rf path to flow to the third rf path, and to form a good block for the rf signal in the third rf path to flow to the first rf path. Therefore, when determining the resistance value of the inductor L2, the frequency of the rf signal in the second rf path and the frequency of the rf signal in the third rf path may be referred to together for determination, so as to satisfy the above requirement.

Because of the characteristic that the inductor passes through direct current and is resistant to alternating current, the inductor L1, the inductor L2 and the inductor L3 have a small influence on the direct current signal, and when the direct current signal exists in the first radio frequency path or the third radio frequency path, if the first radio frequency Cable1, the second radio frequency Cable2 and the third radio frequency Cable3 are all in a good connection state, the direct current signal can smoothly pass through the inductor L1, the inductor L2 and the inductor L3.

In the embodiment of the present application, as shown in fig. 8, since the first radio frequency Cable connection structure and the second radio frequency Cable connection structure are connected in series, the third radio frequency Cable connection structure and the second radio frequency Cable connection structure are connected in series, and the first radio frequency Cable connection structure and the third radio frequency Cable connection structure are connected in parallel, the first end of the second radio frequency Cable2 in the second radio frequency Cable connection structure is connected to the ground. It indicates that the first radio frequency cable connection structure and the second radio frequency cable connection structure form an independent path. The third radio frequency cable connection structure and the second radio frequency cable connection structure form an independent path.

The SOC is controlled to output a high level on the GPIO1 interface and then the voltage on the GPIO1 interface is detected. If first radio frequency Cable connection structure and second radio frequency Cable connection structure all are in the state of connecting normally, show that this line is in the on-state, the high level of GPIO1 interface output can be through first connecting seat, first radio frequency Cable1, second connecting seat, inductance L1, fourth connecting seat, second radio frequency Cable2, third connecting seat and inductance L3, finally ground connection is drawn low, consequently when detecting the voltage of GPIO1 interface, the voltage of GPIO1 interface is the low level. If any one of the first radio frequency Cable1 in the first radio frequency Cable connection structure and the second radio frequency Cable2 in the second radio frequency Cable connection structure is in an abnormal connection state, the first radio frequency Cable connection structure and the second radio frequency Cable connection structure are connected in series, so that the line is in an open circuit state, and the high level output by the GPIO1 interface cannot be grounded through the inductor L3. Therefore, when the voltage of the GPIO1 interface is detected, the voltage of the GPIO1 interface is high.

The SOC is controlled to output a high level on the GPIO2 interface and then the voltage on the GPIO2 interface is detected. If third radio frequency Cable connection structure and second radio frequency Cable connection structure all are in the state of connecting normally, show that this line is in the on-state, the high level of GPIO2 interface output can be through fifth connecting seat, third radio frequency Cable3, sixth connecting seat, inductance L2, fourth connecting seat, second radio frequency Cable2, third connecting seat and inductance L3, finally ground connection and be pulled down, consequently when detecting the voltage of GPIO2 interface, the voltage of GPIO2 interface is the low level. If any one of the third radio frequency Cable3 in the third radio frequency Cable connection structure and the second radio frequency Cable2 in the second radio frequency Cable connection structure is in an abnormal connection state, the third radio frequency Cable connection structure and the second radio frequency Cable connection structure are connected in series, so that the line is in an open circuit state, and the high level output by the GPIO2 interface cannot be grounded through the inductor L3. Therefore, when the voltage of the GPIO2 interface is detected, the voltage of the GPIO2 interface is high.

It should be noted that, in the embodiment of the present application, that the first radio frequency Cable connection structure is in the normal connection state means that the first radio frequency Cable1 is well connected with both the first connection seat and the second connection seat, that is, the first radio frequency Cable1 is in the normal connection state. The first radio frequency Cable connecting structure in the abnormal connection state means that the first radio frequency Cable1 is abnormally connected with at least one of the first connecting seat and the second connecting seat, that is, the first radio frequency Cable1 is in the abnormal connection state.

The second radio frequency Cable connecting structure in the normal connection state means that the second radio frequency Cable2 is well connected with the third connecting seat and the fourth connecting seat, that is, the second radio frequency Cable2 is in the normal connection state. The second radio frequency Cable connecting structure in the abnormal connection state means that the second radio frequency Cable2 is abnormally connected with at least one of the third connecting seat and the fourth connecting seat, that is, the second radio frequency Cable2 is in the abnormal connection state.

The third radio frequency Cable connecting structure in the normal connection state means that the third radio frequency Cable3 is well connected with the fifth connecting seat and the sixth connecting seat, that is, the third radio frequency Cable3 is in the normal connection state. The third radio frequency Cable connection structure is in an abnormal connection state, which means that the third radio frequency Cable3 is in an abnormal connection state with at least one of the fifth and sixth connecting sockets, that is, the third radio frequency Cable3 is in an abnormal connection state.

Therefore, when the connection states of the first radio frequency Cable1, the second radio frequency Cable2 and the third radio frequency Cable3 are detected, the SOC is controlled to output a high level on the GPIO1 interface and the GPIO2 interface respectively, and then the voltages on the GPIO1 interface and the GPIO2 interface are detected. Through the detection results of the voltage on the GPIO1 interface and the GPIO2 interface, the connection condition of the first radio frequency Cable1, the second radio frequency Cable2, and the third radio frequency Cable3 is determined, and the detection results and the determination condition are as follows:

if the detection result of the GPIO1 interface is at a low level and the detection result of the GPIO2 interface is also at a low level, it is determined that the first radio frequency Cable connection structure, the second radio frequency Cable connection structure, and the third radio frequency Cable connection structure are all in a normal connection state, that is, the first radio frequency Cable1, the second radio frequency Cable2, and the third radio frequency Cable3 are all in a normal connection state.

Through the analysis, it can be known that the detection result of the GPIO1 interface is at a low level, which indicates that both the first radio frequency Cable1 and the second radio frequency Cable are in a normal connection state. And if the detection result of the GPIO2 interface is low level, the third radio frequency cable and the second radio frequency cable are both in a normal connection state. Therefore, when the detection results of the GPIO1 interface and the GPIO2 interface are both low level, it indicates that the first radio frequency Cable1, the second radio frequency Cable2, and the third radio frequency Cable3 are all in a normal connection state.

If the detection result of the GPIO1 interface is low level, but the detection result of the GPIO2 interface is high level, then the first radio frequency cable connection structure and the second radio frequency cable connection structure are judged to be in a normal connection state, and the third radio frequency cable connection structure is judged to be in an abnormal connection state; that is, the first radio frequency Cable1 and the second radio frequency Cable2 are in a normal connection state, and the third radio frequency Cable3 is in an abnormal connection state.

Through the analysis, it can be known that the detection result of the GPIO1 interface is at a low level, which indicates that both the first radio frequency Cable1 and the second radio frequency Cable are in a normal connection state. If the detection result of the GPIO2 interface is high, it indicates that the third rf cable is in an abnormal connection state, or the second rf cable is in an abnormal connection state, or both the third rf cable and the second rf cable are in an abnormal connection state. Because the detection result of the GPIO1 interface is low, it is analyzed that the second rf cable is in a normal connection state, and therefore the detection result of the GPIO2 interface is high, which indicates that the third rf cable is in an abnormal connection state.

If the detection result of the GPIO1 interface is high level, but the detection result of the GPIO2 interface is low level, the first radio frequency cable connection structure is judged to be in an abnormal connection state, and the second radio frequency cable connection structure and the third radio frequency cable connection structure are in a normal connection state; that is, the first radio frequency Cable1 is in an abnormal connection state, and the second radio frequency Cable2 and the third radio frequency Cable3 are in a normal connection state.

Through the analysis, it can be known that the detection result of the GPIO1 interface is a high level, which indicates that the first radio frequency cable is in an abnormal connection state, or that the second radio frequency cable is in an abnormal connection state, or that both the first radio frequency cable and the second radio frequency cable are in an abnormal connection state. And if the detection result of the GPIO2 interface is low level, the third radio frequency cable and the second radio frequency cable are both in a normal connection state. Therefore, the second radio frequency cable is analyzed to be in a normal connection state according to the fact that the detection result of the GPIO2 interface is at a low level, and therefore the detection result of the GPIO1 interface is at a high level, which indicates that the first radio frequency cable is in an abnormal connection state.

If the detection result of the GPIO1 interface is at a high level and the detection result of the GPIO2 interface is also at a high level, the following situations may occur:

the first condition is as follows: the first radio frequency Cable1, the second radio frequency Cable2 and the third radio frequency Cable3 are all in abnormal connection state.

Case two: the first radio frequency Cable1 and the third radio frequency Cable3 are both in an abnormal connection state, and the second radio frequency Cable2 is in a normal connection state.

Case three: the first radio frequency Cable1 and the third radio frequency Cable3 are both in a normal connection state, and the second radio frequency Cable2 is in an abnormal connection state.

Case four: the first radio frequency Cable1 is in a normal connection state, and the second radio frequency Cable2 and the third radio frequency Cable3 are in an abnormal connection state.

Case five: the first radio frequency Cable1 and the second radio frequency Cable2 are both in an abnormal connection state, and the third radio frequency Cable3 is in a normal connection state.

Through the analysis, it can be known that the detection result of the GPIO1 interface is a high level, which indicates that the first radio frequency cable is in an abnormal connection state, or that the second radio frequency cable is in an abnormal connection state, or that both the first radio frequency cable and the second radio frequency cable are in an abnormal connection state. If the detection result of the GPIO2 interface is high, it indicates that the third rf cable is in an abnormal connection state, or the second rf cable is in an abnormal connection state, or both the third rf cable and the second rf cable are in an abnormal connection state. Therefore, when the detection results of the GPIO1 interface and the GPIO2 interface are both high, the above five possible situations occur.

In summary, when the SOC is controlled to output a high level on the GPIO1 interface and the GPIO2 interface, respectively, and then the voltages on the GPIO1 interface and the GPIO2 interface are detected, the detection results can be found in table 1:

TABLE 1

In table 1, "L" indicates that the corresponding GPIO interface is at a low level, "H" indicates that the corresponding GPIO interface is at a high level, "OK" indicates that the corresponding rf cable is in a normal connection state, and "NG" indicates that the corresponding rf cable is in an abnormal connection state.

When the detected radio frequency Cable needs to be maintained, if the detection results of the GPIO1 interface and the GPIO2 interface are both low levels, the first radio frequency Cable1, the second radio frequency Cable2, and the third radio frequency Cable3 are all in a normal connection state, and maintenance is not needed. And if one GPIO interface is in a low level state and the other GPIO interface is in a high level state in the detection results of the GPIO1 interface and the GPIO2 interface, maintaining the radio frequency cable which is in abnormal connection according to the analysis result.

If the detection results of the GPIO1 interface and the GPIO2 interface are both high level, the connection state of the second radio frequency cable is firstly determined during maintenance, if the second radio frequency cable is in a normal connection state, the SOC is controlled to output a high level on the GPIO1 interface and the GPIO2 interface respectively, then the voltage on the GPIO1 interface and the GPIO2 interface is detected, and the corresponding radio frequency cable is maintained through the detection results of the voltage on the GPIO1 interface and the GPIO2 interface.

Under the condition that the second radio frequency Cable is determined to be in a normal connection state, if the result of the GPIO1 interface is high level, determining that the first radio frequency Cable1 is in an abnormal connection state, and maintaining the first radio frequency Cable 1; and if the result of the GPIO1 interface is low level, determining that the first radio frequency Cable1 is in a normal connection state. If the result of the GPIO2 interface is high level, determining that the third radio frequency Cable3 is in an abnormal connection state, and maintaining the third radio frequency Cable 3; if the result of the GPIO2 interface is low, it is determined that the third radio frequency Cable3 is in a normal connection state.

If the second radio frequency Cable is in the abnormal connection state, the second radio frequency Cable2 is maintained to restore the normal connection state, and then the first radio frequency Cable1 and the third radio frequency Cable3 are overhauled according to the method that the second radio frequency Cable is in the normal connection state.

This application embodiment, through establishing ties first radio frequency Cable1 and third radio frequency Cable3 with second radio frequency Cable2 respectively, can discern the connection status of three radio frequency cables only through setting up two discernment ports at first radio frequency Cable1 and third radio frequency Cable3, whole structure low cost does not need to discern the interface of half high level, also need not complicated software and judges logic. In addition, when the detection results of the two GPIO interfaces are both high levels, the connection state of each radio frequency cable can be determined and maintained through a simple judgment method. When the connecting inductors among the connectors are all on the same PCB, the problem that wiring of voltage connecting lines among the connectors is complex in a multi-PCB system is solved.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the scope of protection of the present application includes the preferred embodiments and all variations and modifications that fall within the scope of the embodiments of the present application.

The radio frequency cable in-place detection structure and the electronic device provided by the present application are introduced in detail, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the above embodiment is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (11)

1. An in-situ radio frequency cable detection structure, comprising: a first radio frequency cable connection structure, a second radio frequency cable connection structure and a third radio frequency cable connection structure,

the first radio frequency cable connection structure is connected in series with the second radio frequency cable connection structure, the third radio frequency cable connection structure is connected in series with the second radio frequency cable connection structure, and the first radio frequency cable connection structure is connected in parallel with the third radio frequency cable connection structure;

a first detection interface is connected to one end, away from the second radio frequency cable connecting structure, of the first radio frequency cable connecting structure, a second detection interface is connected to one end, away from the second radio frequency cable connecting structure, of the third radio frequency cable connecting structure, and one end, away from the first radio frequency cable connecting structure or the third radio frequency cable connecting structure, of the second radio frequency cable connecting structure is connected to the ground;

the first detection interface and the second detection interface can both transmit a high level and provide a function of detecting the self state;

and judging the connection states of the first radio frequency cable connection structure, the second radio frequency cable connection structure and the third radio frequency cable connection structure by detecting the states of the first detection interface and the second detection interface.

2. The detecting structure of claim 1, wherein when the state of the first detecting interface is low level and the state of the second detecting interface is low level, the first rf cable connection structure, the second rf cable connection structure and the third rf cable connection structure are all in a normal connection state.

3. The detecting structure of claim 1, wherein when the state of the first detecting interface is low level, but the state of the second detecting interface is high level, the first rf cable connection structure and the second rf cable connection structure are both in a normal connection state, and the third rf cable connection structure is in an abnormal connection state.

4. The detecting structure of claim 1, wherein when the state of the first detecting interface is high level, but the state of the second detecting interface is low level, the second rf cable connection structure and the third rf cable connection structure are both in a normal connection state, and the first rf cable connection structure is in an abnormal connection state.

5. The detecting structure of claim 1, wherein when the state of the first detecting interface is high level and the state of the second detecting interface is high level, the first rf cable connecting structure and the third rf cable connecting structure are both in abnormal connection state, and/or the second rf cable connecting structure is in abnormal connection state.

6. The detecting structure according to claim 5, wherein when the first radio frequency cable connecting structure and the third radio frequency cable connecting structure are both in an abnormal connection state, the second radio frequency cable is in a normal connection state or an abnormal connection state;

when the second radio frequency cable connection structure is in an abnormal connection state, the first radio frequency cable is in a normal connection state or an abnormal connection state, and the third radio frequency cable is in a normal connection state or an abnormal connection state.

7. The detecting structure according to any one of claims 1 to 6, wherein the first RF cable connecting structure comprises a first RF cable, a first connecting seat and a second connecting seat, a first end of the first RF cable is connected to the first connecting seat, and a second end of the first RF cable is connected to the second connecting seat;

the second radio frequency cable connecting structure comprises a second radio frequency cable, a third connecting seat and a fourth connecting seat, wherein the first end of the second radio frequency cable is connected to the third connecting seat, and the second end of the second radio frequency cable is connected to the fourth connecting seat;

the third radio frequency cable connecting structure comprises a third radio frequency cable, a fifth connecting seat and a sixth connecting seat, wherein the first end of the third radio frequency cable is connected to the fifth connecting seat, and the second end of the third radio frequency cable is connected to the sixth connecting seat.

8. The detecting structure according to claim 7, wherein the second connecting seat and the fourth connecting seat are connected in series by a first element, the sixth connecting seat and the fourth connecting seat are connected in series by a second element, and a third element is connected in series between the third connecting seat and a grounding point;

the first element, the second element and the third element are all used for passing through direct current signals and blocking radio frequency signals.

9. The detecting structure according to claim 8, wherein a fourth element is connected to each of the first connecting seat, the second connecting seat, the third connecting seat, the fourth connecting seat, the fifth connecting seat and the sixth connecting seat;

the fourth element is used for passing radio frequency signals and blocking direct current signals.

10. The detecting structure according to any one of claims 1 to 6, wherein one end of each of the first RF cable connection structure, the second RF cable connection structure and the third RF cable connection structure is connected to an antenna, and the other end is connected to an RF transceiver circuit.

11. An electronic device, comprising a body and the radio frequency cable presence detecting structure according to any one of claims 1 to 10, wherein the radio frequency cable presence detecting structure is disposed in the body.

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