CN114441999A

CN114441999A - Radio frequency system, electronic device, and computer-readable storage medium

Info

Publication number: CN114441999A
Application number: CN202011200720.4A
Authority: CN
Inventors: 彭彪; 姜丕锦; 蔡佳佳; 张新丽; 刘抒民
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-10-31
Filing date: 2020-10-31
Publication date: 2022-05-06

Abstract

The application is applicable to the technical field of radio frequency communication, and provides a radio frequency system, electronic equipment and a computer readable storage medium, wherein the radio frequency system comprises: the antenna comprises a first radio frequency circuit, a second radio frequency circuit, a first antenna, a second antenna, a first radio frequency connecting line and a second radio frequency connecting line, wherein the first radio frequency connecting line and the second radio frequency connecting line are coupled in series; the radio frequency system further comprises: a first node and a voltage dividing element; the first node is coupled with the first potential, the first node is coupled with the first end of the first radio frequency connecting line, the second end of the second radio frequency connecting line is coupled with the first end of the voltage dividing element, and the second end of the voltage dividing element is coupled with the second potential.

Description

Radio frequency system, electronic device, and computer-readable storage medium

Technical Field

The present application relates to the field of radio frequency communication technologies, and in particular, to a radio frequency system, an electronic device, and a computer-readable storage medium.

Background

The radio frequency connecting line (RF cable) is used for connecting a radio frequency circuit and an antenna in electronic equipment such as terminal equipment, so that the terminal equipment can perform radio frequency communication through the connected radio frequency circuit and antenna. The radio frequency circuit can be positioned on a mainboard of the terminal equipment, and the mainboard can also comprise a connecting seat corresponding to the radio frequency circuit; the sub-plate can comprise connecting seats which are connected with the antenna and correspond to the antenna one by one; the radio frequency connecting line can be connected with the radio frequency circuit and the antenna through connecting seats on the main board and the auxiliary board.

With the development of communication technology, the number of antennas in electronic devices such as terminal devices is increasing, so that the number of radio frequency connecting lines in the terminal devices is increased, and the radio frequency connecting lines and the connecting seat are not completely buckled (for example, the radio frequency connecting lines and the connecting seat are buckled and loosened or the radio frequency connecting lines fall off) often.

Disclosure of Invention

The application provides a radio frequency system, electronic equipment and computer readable storage medium, has solved and has received the restriction of the area of circuit board among the prior art, can't detect the problem of the lock degree between every radio frequency connecting wire and the connecting seat.

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

in a first aspect, a radio frequency system is provided, which includes: the antenna comprises a first radio frequency circuit, a second radio frequency circuit, a first antenna, a second antenna, a first radio frequency connecting line and a second radio frequency connecting line, wherein the first antenna is coupled with the first radio frequency circuit through the first radio frequency connecting line, the second antenna is coupled with the second radio frequency circuit through the second radio frequency connecting line, and the first radio frequency connecting line and the second radio frequency connecting line are coupled in series;

the radio frequency system further comprises: a first node and a voltage dividing element;

the first node is coupled with a first potential, the first node is coupled with a first end of the first radio frequency connecting line, a second end of the second radio frequency connecting line is coupled with a first end of the voltage dividing element, a second end of the voltage dividing element is coupled with a second potential, and the first potential is higher than the second potential.

Through setting up power module, detection module and partial pressure module, and detection module is connected with 2 radio frequency connecting wires in the electronic equipment through choke inductance respectively, thereby can at least one radio frequency connecting wire appear the lock when not hard up, and detect the partial pressure of every radio frequency connecting wire and partial pressure module and change, and then can confirm every radio frequency connecting wire according to the electric potential that detection module obtained whether the lock is not hard up the condition appears, need not to set up corresponding digital signal line for every radio frequency connecting wire, can confirm whether there is the not hard up condition of lock in every radio frequency connecting wire, can reduce the required hardware of the lock degree of confirming every radio frequency connecting wire, and reduce the cost of the lock degree of detecting every radio frequency connecting wire.

In a first possible implementation manner of the first aspect, the radio frequency system further includes: a capacitance to ground, a first end of the capacitance to ground being coupled between the first radio frequency connection line and the second radio frequency connection line, a second end of the capacitance to ground being coupled with a third potential, the first potential being higher than the third potential.

By setting the ground capacitor, the ground capacitor is positioned between the two radio frequency circuits, and then radio frequency signals of a radio frequency system connected in series in the radio frequency circuits can be guided to a third potential, namely a ground potential, through the ground capacitor, so that the radio frequency signals in one radio frequency circuit can be prevented from entering the other radio frequency circuit through the radio frequency system, and the isolation between the two radio frequency circuits can be improved.

Based on any one of the possible implementation manners of the first aspect, in a second possible implementation manner of the first aspect, the radio frequency system further includes a power supply, and the first node is coupled to the power supply;

the power supply includes: the pull-up circuit comprises a direct current voltage source and a pull-up resistor, wherein a first end of the pull-up resistor is coupled with an output end of the direct current voltage source, and a second end of the pull-up resistor is coupled with the first node.

By adopting the direct-current voltage source to supply power to the radio frequency system, the stability of the radio frequency connecting line can be improved, and the safety and the accuracy of the radio frequency connecting line can be improved by the pull-up resistor.

Based on any one of the possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect, the radio frequency system further includes: the second node and the detection module;

the second node is any point between the first radio frequency connecting line and the second radio frequency connecting line;

and the radio frequency system acquires the potential of the second node through the detection module.

Based on the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the detection module is an analog-to-digital converter ADC or a voltage comparator.

The detection module comprising different circuits is adopted to detect the potential of the first node, so that the flexibility of detecting the radio frequency connecting line can be improved. Furthermore, by detecting the potential through the ADC or the voltage comparator, a plurality of potentials of different magnitudes of the first node can be recognized, and detection of a plurality of potentials can be supported.

Based on any one of the possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the radio frequency system further includes:

the first connecting seat, the second connecting seat, the third connecting seat and the fourth connecting seat;

the first blocking capacitor, the second blocking capacitor, the third blocking capacitor and the fourth blocking capacitor;

a first choke inductance, a second choke inductance, a third choke inductance, and a fourth choke inductance;

wherein the first radio frequency circuit is coupled to the first connector block, the first antenna is coupled to the second connector block, the second radio frequency circuit is coupled to the third connector block, and the second antenna is coupled to the fourth connector block;

the first blocking capacitor is coupled between the first radio frequency circuit and the first connection socket, the second blocking capacitor is coupled between the first antenna and the second connection socket, the third blocking capacitor is coupled between the second radio frequency circuit and the third connection socket, and the fourth blocking capacitor is coupled between the second antenna and the fourth connection socket;

the first end of the first choke inductor is coupled between the first blocking capacitor and the first connection seat, the second end of the first choke inductor is coupled with the second end of the third choke inductor, the first end of the second choke inductor is coupled between the second blocking capacitor and the second connection seat, the second end of the second choke inductor is coupled with the first node, the first end of the third choke inductor is coupled between the third blocking capacitor and the third connection seat, the first end of the fourth choke inductor is coupled between the fourth blocking capacitor and the fourth connection seat, and the second end of the fourth choke inductor is coupled with the first end of the voltage dividing element.

Through setting up blocking capacitance and choke inductance, can prevent that the radio frequency signal in the radio frequency circuit from getting into the radio frequency system, also can prevent that the electric current in the radio frequency system from getting into the radio frequency circuit to can improve the isolation between radio frequency system and the radio frequency circuit, improve the degree of accuracy of radio frequency system.

Based on any one of the possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, the radio frequency system further includes: a second node, which is any point between the first radio frequency connection line and the second radio frequency connection line;

the electric potential of the second node changes along with the buckling degree between the first radio frequency connecting line and the corresponding connecting seat and between the second radio frequency connecting line and the corresponding connecting seat.

The potential of the second node can be changed according to the buckling degree between the first radio frequency connecting line and the corresponding connecting seat and between the second radio frequency connecting line and the corresponding connecting seat respectively, so that the second node is used as a detection point, and the buckling degree between the first radio frequency connecting line and the corresponding connecting seat and the buckling degree between the second radio frequency connecting line and the corresponding connecting seat are determined according to the potential change of the detection point.

Based on the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, when both ends of the first radio frequency connection line are completely buckled with the corresponding connection seats respectively and both ends of the second radio frequency connection line are completely buckled with the corresponding connection seats respectively, the potential of the second node is in a first state;

when at least one end of the first radio frequency connecting wire and at least one end of the second radio frequency connecting wire are not completely buckled with the corresponding connecting seat, the potential of the second node is in a second state.

Whether the first radio frequency connecting line and the second radio frequency connecting line are completely buckled with the corresponding connecting seats or not can be determined based on the fact that the detection points are in the first potential state or the second potential state, and therefore accuracy and flexibility of detecting whether the radio frequency connecting lines are connected abnormally or not can be improved.

In an eighth possible implementation manner of the first aspect, in any one of the possible implementation manners of the first aspect, the voltage dividing element is a resistor, and the second potential and the third potential are both ground potentials.

By adopting the resistor as the voltage dividing element, the cost for detecting the radio frequency connecting line can be reduced.

In a second aspect, an electronic device is provided, comprising: the radio frequency detection device comprises a memory, a processor, a computer program stored in the memory and capable of running on the processor, and the radio frequency system according to any one of the first aspect, wherein when the processor executes the computer program, the detection of the radio frequency connection line in the electronic device is realized based on the radio frequency system according to any one of the first aspect.

In a first possible implementation manner of the second aspect, the electronic device further includes: at least one of a display and a speaker;

and when the radio frequency connecting wire in the electronic equipment is abnormally connected, alarming is carried out through the display or the loudspeaker.

In a third aspect, a computer-readable storage medium is provided, which stores a computer program, which, when executed by a processor, implements detection of a radio frequency connection line in an electronic device based on the radio frequency system according to any one of the first aspect.

Drawings

Fig. 1 is a scene schematic diagram of a scene involved in a radio frequency system according to an embodiment of the present application;

fig. 2 is a schematic diagram of a system architecture related to a radio frequency system according to an embodiment of the present application;

fig. 3 is a schematic system architecture diagram of another radio frequency system according to an embodiment of the present application;

fig. 4 is a circuit block diagram of a radio frequency system according to an embodiment of the present application;

fig. 5 is a circuit block diagram of another rf system provided in an embodiment of the present application;

fig. 6 is a circuit block diagram of another radio frequency system provided in an embodiment of the present application;

FIG. 7 is a schematic flow chart diagram of a detection method provided by an embodiment of the present application;

fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known circuits and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

The terminology used in the following examples is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, such as "one or more", unless the context clearly indicates otherwise.

In order to ensure the communication quality of the electronic device, the buckling degree between the radio frequency connecting wire of the electronic device and the connecting seat can be detected. For example, a digital signal line may be connected to each rf connection line, and the degree of engagement between the corresponding rf connection line and the connecting socket may be detected by the digital signal line.

However, as the number of rf connection lines of the electronic device increases, the number of digital signal lines connected to the rf connection lines on the circuit board increases, and the area of the circuit board limits the number of digital signal lines, which makes it impossible to set a corresponding number of digital signal lines for each rf connection line, thereby preventing the possibility of detecting the buckling degree between each rf connection line and the connection socket.

First, a scenario related to an embodiment of the present application is described, and referring to fig. 1, an electronic device may include a main board and a sub board. The motherboard is provided with a plurality of rf circuits (2 rf circuits are exemplarily illustrated in fig. 1), and each rf circuit can be connected to a corresponding connecting seat on the motherboard. Furthermore, the electronic device may further comprise a plurality of antennas, each of which may be connected to a corresponding connection socket on the sub-board, similar to the radio frequency circuit.

The main board and the sub-board of the electronic device are both circuit boards, and the circuit boards may be Printed Circuit Board (PCB) boards.

For example, referring to fig. 1, the main board includes a radio frequency circuit 11 and a radio frequency circuit 12, where the radio frequency circuit 11 and the radio frequency circuit 12 correspond to a connection socket respectively; the sub-board comprises 2 connecting seats, the connecting seat on the left side of the sub-board corresponds to the antenna 22, the connecting seat on the right side of the sub-board corresponds to the antenna 21, and the antenna 21 and the antenna 22 can be respectively connected with the corresponding connecting seats on the sub-board.

The rf circuit 11 may include one or more devices selected from a power amplifier, a filter, a linear amplifier, and a switch, and the rf circuit 11 may be further coupled to a processor (such as a baseband processor or an rf transceiver, etc.) for generating a transmission signal, and the rf circuit 11 transfers the transmission signal to the antenna 21 through an rf connection line (hereinafter, referred to as a cable)31 and transmits the generated wireless signal from the antenna 21. The antenna 21 can also receive wireless signals, and the antenna 21 transfers the received wireless signals to the radio frequency circuit 11 through the cable31 and transfers the received wireless signals to the processor through the radio frequency circuit 11. Similarly, the rf circuit 12 may also include one or more of a power amplifier, a filter, a linear amplifier, and a switch, and the rf circuit 12 may also be coupled to a processor (e.g., a baseband processor or a radio frequency transceiver, etc.) for generating the transmit signal, and the rf circuit 12 may pass the transmit signal to the antenna 22 through the cable32 and transmit the generated wireless signal from the antenna 22. The antenna 22 may also receive wireless signals, and the antenna 22 passes the received wireless signals to the radio frequency circuitry 12 via the cable32 and passes the received wireless signals to the processor via the radio frequency circuitry 12. In a specific embodiment, the processor is also located on the motherboard.

In an alternative embodiment, the electronic device may include a plurality of cables, each cable may include two ends, a first end coupled to a connector corresponding to the rf circuit, and a second end coupled to a connector corresponding to the antenna. In the process of radio frequency communication of the electronic equipment, the radio frequency circuit can send radio frequency signals to the antenna through the cable, and the antenna can receive and send the radio frequency signals to realize the radio frequency communication of the electronic equipment. For example, as shown in fig. 1, one end of cable31 is coupled to the corresponding connection seat of rf circuit 11, and the other end of cable31 is coupled to the corresponding connection seat of antenna 21; similarly, one end of cable32 is coupled to a corresponding connection socket of rf circuit 12, and the other end of cable32 is coupled to a corresponding connection socket of antenna 22.

The radio frequency connection line may be a Coaxial Cable (Coaxial Cable), the Coaxial Cable is a wire and signal transmission line, and has two concentric conductors, and the conductor and the shielding layer share the same axis. The coaxial cable has the advantages that: the coaxial cable has good transmission characteristics, can ensure the stable operation of a communication network, has strong anti-electromagnetic interference and anti-bending performance and good flexibility, and is suitable for being applied to folding and rotating electronic products. In addition, the coaxial cable also has good heat resistance and flame resistance, and can work in an environment of-55 ℃ to 250 ℃. Coaxial cables are suitable for transmitting analog and digital signals and are suitable for a wide variety of applications. Coaxial cables are widely used, for example, in electronic devices such as smart phones, notebook computers, digital cameras, video cameras, Global Positioning System (GPS) positioning instruments, wireless routers, liquid crystal televisions, precision medical instruments, and the like to communicatively connect different circuit boards. In one embodiment, the rf connection line may transmit an analog signal, for example, a radio frequency signal.

The resistance of the rf connection line is generally relatively small, and in one embodiment, the resistance of the rf connection line may range from 1 ohm (Ω) to 50 Ω, such as 5 Ω, 7.5 Ω, and the like. The resistance value of the rf connection line may fluctuate when the rf connection line is switched into the circuit, for example, when the resistance value is 7.5 Ω when the rf connection line is not switched into the circuit, the resistance value may fluctuate between 8 Ω and 50 Ω when the rf connection line is switched into the circuit.

Before the electronic equipment leaves the factory, the buckling degree between each cable of the electronic equipment and the connecting seat can be detected, so that the complete buckling between each cable and the connecting seat is ensured, and the communication quality of the electronic equipment is ensured. The user is at the in-process that uses electronic equipment, and reasons such as collision, intaking that electronic equipment received can lead to becoming flexible or conductivity to worsen between cable and the connecting seat, also need detect the lock degree between each cable of electronic equipment and the connecting seat.

Can dispose digital signal line for each cable of electronic equipment among the correlation technique, detect whether each cable and the connecting seat between complete lock, whether have the not hard up problem of lock through digital signal line. However, due to the limitation of the area of the circuit board of the electronic device, it is not possible to configure a digital signal line for each cable to detect whether each cable is fastened or loosened, and there is a possibility that the attenuation of the radio frequency signal is increased due to the loosening of part of the cables, which may cause the problem of the communication quality of the electronic device being degraded.

Therefore, the embodiment of the application provides a radio frequency system for detecting the buckling degree between the cable and the connecting seat and a detection method for detecting the buckling degree between the cable and the connecting seat, which can read the potential of a detection point preset in the radio frequency system through the radio frequency system, determine the partial pressure of each resistor in the radio frequency system, and determine the buckling degree between each cable and the connecting seat. The detection point can be a position where a potential change occurs along with a change of a circuit coupling mode caused by connection error or disconnection of each cable in the radio frequency system.

It should be noted that, in practical applications, the radio frequency circuit, the antenna and the radio frequency connection line may have various descriptions, for example, the radio frequency circuit 11 may be a first radio frequency circuit, the radio frequency circuit 12 may be a second radio frequency circuit, the antenna 21 may be a first antenna, the antenna 22 may be a second antenna, the cable31 may be a first radio frequency connection line, and the cable32 may be a second radio frequency connection line.

Furthermore, the connection seat, the choke inductor and the blocking capacitor coupled with each cable can also be described in various ways, for example, the first connecting jack may be a below-described connecting jack 41, the second connecting jack may be a below-described connecting jack 42, the third connecting jack may be a below-described connecting jack 43, the fourth connecting jack may be a below-described connecting jack 44, the first choke inductance may be a below-described choke inductance L1, the second choke inductance may be a below-described choke inductance L2, the third choke inductance may be a below-described choke inductance L3, the fourth choke inductance may be a below-described choke inductance L4, the first blocking capacitance may be a below-described blocking capacitance C1, the second blocking capacitance may be a below-described blocking capacitance C2, the third blocking capacitance may be a below-described blocking capacitance C3, the fourth blocking capacitance may be a below-described blocking capacitance C4, and the ground capacitance may be a below-described ground capacitance C5.

In addition, the voltage dividing element in the rf system may be R1 described below. Further, the voltage dividing element may constitute a voltage dividing module described below.

It should be noted that the radio frequency system may be applied to an electronic device, and the first potential in the radio frequency system may be a high potential, and the second potential and the third potential may both be a low potential. For example, the first potential may be a potential coupled to a power supply, and the second potential and the third potential may be ground potentials, such as the second potential may be ground potential GND1, and the third potential may be ground potential GND 2. In the following embodiments, the first potential is coupled to a power source, and the second potential and the third potential are both ground potentials.

Fig. 2 is a schematic diagram of a system architecture related to a radio frequency system provided in an embodiment of the present application, and by way of example and not limitation, referring to fig. 2, the system architecture may include: radio frequency system 201, processor 202, memory 203 and 2 cable 204.

Wherein, the radio frequency system 201 can be coupled with 2 cable204, the radio frequency system 201 can also be coupled with the processor 202, and the processor 202 can be coupled with the memory 203.

In the process of detecting the buckling degree between each cable204 and the corresponding connecting seat, the radio frequency system 201 may collect the electric potential of the detection point through a preset detection module, and send the electric potential information corresponding to the electric potential to the processor 202. The processor 202 may receive the potential information, and determine a potential section to which the potential information belongs from a plurality of potential sections stored in advance, so as to store a connection state corresponding to the potential section in the memory 203, so that a maintenance worker can know a buckling degree between each cable204 and a corresponding connection seat according to the connection state stored in the memory 203.

The electronic equipment stores a plurality of potential intervals in advance, and the potential intervals correspond to different connection states of each cable respectively. For example, if the electronic device includes cable31 and cable32, the electronic device can prestore 3 potential intervals, wherein the first potential interval can correspond to cable31 and cable32 and all buckle completely, the second potential interval can correspond to cable31 and buckle loosely, cable32 buckles completely, and the third potential interval can correspond to cable31 and buckle loosely completely, and cable32 buckles loosely.

Moreover, when the at least one cable204 is buckled and loosened with the corresponding connecting seat, the resistance corresponding to the buckled and loosened cable204 in the radio frequency system can be changed, the partial pressure of the buckled and loosened cable204 can also be changed, and the potential of the preset detection point can also be correspondingly changed. That is, the potential of the preset detection point may change according to the change of the resistance of the cable204 when the engagement is loosened.

Additionally, referring to fig. 3, the system architecture may further include: at least one of the display screen 205 and the speaker 206, both the display screen 205 and the speaker 206 may be coupled to the processor 202. When the processor 202 determines that any one of the cable204 is fastened and loosened according to the connection state corresponding to the potential interval, the processor 202 can control the display screen 205 to remind the user, and the processor 202 can also control the loudspeaker 206 to remind the user of the looseness of the fastening of the certain cable204 of the electronic device and the connecting seat.

For example, the display 205 may display "the connection between the RF cable and the connection socket is loose, please check! ", and/or the speaker 206 may emit a voice" the RF connection cord is loosely fastened to the docking station, please check! ".

In addition, in practical application, the electronic device may include a plurality of cables 204, and the following description will take the electronic device including 1 cable204 as an example to explain the principle of determining the buckling degree between the cable204 and the connection seat in the embodiment of the present application.

Referring to fig. 4, an embodiment of the present application provides a radio frequency system, and fig. 4 is a circuit framework diagram of a radio frequency system provided in an embodiment of the present application, where the radio frequency system may include: a detection module 401 and a power supply module 402. Furthermore, the radio frequency system may further include a plurality of dc blocking capacitors (C1 and C2) and a plurality of choke inductors (L1 and L2).

Wherein the output of the power supply module 402 is coupled to the detection module 401. Moreover, a dc blocking capacitor C1 may be disposed between the rf circuit and the corresponding connection socket, and a dc blocking capacitor C2 may be disposed between the antenna and the corresponding connection socket 42. In addition, the connection socket corresponding to the dc blocking capacitor C2 and the antenna is connected to the output terminal of the power supply module 402 through the choke inductor L2, the connection socket 41 corresponding to the dc blocking capacitor C1 and the rf circuit is connected to the ground GND1 through the choke inductor L1, and the detection module 401 and the power supply module 402 can be connected between the dc blocking capacitor C2 and the connection socket 42 corresponding to the antenna through the choke inductor L2.

Specifically, the power supply module 402 may include a dc voltage source V0 and a pull-up resistor R0, an output terminal of the dc voltage source V0 is coupled to a first terminal of the pull-up resistor R0, and a second terminal of the pull-up resistor R0 is coupled between the dc blocking capacitor C2 and the connection socket 42 corresponding to the antenna 21 through a choke inductor L2. The dc voltage source V0 may be a built-in voltage source of the electronic device. Moreover, the second end of the pull-up resistor R0 may be an output end of the power supply module or a detection point of the rf system.

The detection module 401 may include a voltage detection circuit, an input of which may be coupled to a second terminal of the pull-up resistor R0, and an output of which may be coupled to a processor in the system architecture shown in fig. 2. The voltage detection circuit may be an analog-to-digital converter (ADC), a voltage comparator, or other circuits capable of reading a voltage, which is not limited in this embodiment of the present invention.

For example, if the voltage detection circuit is an ADC, in the process of collecting the potential of the detection point, the ADC may collect an analog voltage signal in the detection circuit according to a preset sampling frequency, quantize the collected analog voltage signal, and finally represent the quantized analog voltage signal in a digital form by encoding, thereby completing the collection of the potential of the detection point. Or, if the voltage detection circuit includes at least one voltage comparator, in the process of collecting the potential of the detection point, each voltage comparator may collect the potential of the detection point first, compare the collected potential with a preset potential, and determine the magnitude relationship between the potential of the detection point and each preset potential, so that the potential of the detection point may be determined according to a plurality of magnitude relationships.

It should be noted that the cable also has a certain resistance Rc, and the size of the resistance Rc of the cable is related to the degree of engagement between the cable and the connector holder. If the cable is completely buckled with the connecting seat, the resistance Rc of the cable is minimum; if the cable is not locked with the connecting seat, the resistance Rc of the cable is increased. For example, when the cable is completely buckled with the connecting seat, the resistance Rc of the cable may be 7.5 Ω, and when the cable is loosened from the connecting seat, the value range of the resistance Rc of the cable may be 8 to 50 Ω.

In the process of detecting the degree of engagement between the cable and the connector, the potential of the detection point in the rf system may be V1 ═ V × Rc/(R0+ Rc), where V1 is the potential of the detection point, V is the potential of the dc voltage source V0, R0 is the resistance value corresponding to the pull-up resistor R0, and Rc is the resistance value corresponding to the cable.

If the cable is completely buckled with the connecting seat, V1 corresponds to the potential with the minimum Rc; if the cable is loosely buckled with the connecting seat, Rc is increased, and the variation of V + Rc is larger than that of R0+ Rc, V1 is correspondingly increased, so that the looseness buckled with the connecting seat by the cable can be determined according to the increased V1.

Furthermore, the variation of V1 can be determined according to the variation of Rc, so that the variation interval of V1 can be determined according to the variation of V1, and the variation interval of V1 is used as the potential interval corresponding to the loose engagement of cable and the connecting seat.

After introducing the principle of the embodiment of the present application for detecting the degree of engagement, a radio frequency system based on the above principle may be applied to an electronic device including 2 cables (cable31 and cable32), see fig. 5, where fig. 5 is a circuit framework diagram of another radio frequency system provided by the embodiment of the present application, and the radio frequency system may include: a voltage division module 501, a detection module 502 and a power supply module 503. Moreover, the radio frequency system may further include: a first node (a), a second node (B), a plurality of dc blocking capacitances (C1, C2, C3, and C4), and a plurality of choke inductances (L1, L2, L3, and L4).

And a blocking capacitor is arranged between each radio frequency circuit and the corresponding connecting seat, and a blocking capacitor is also arranged between each antenna and the corresponding connecting seat. Specifically, a dc blocking capacitor C1 is disposed between the rf circuit 11 and the corresponding connection socket 41, a dc blocking capacitor C2 is disposed between the antenna 21 and the corresponding connection socket 42, a dc blocking capacitor C3 is disposed between the rf circuit 12 and the corresponding connection socket 43, and a dc blocking capacitor C4 is disposed between the antenna 22 and the corresponding connection socket 44.

Furthermore, the output terminal of the power supply module 503 may be coupled between the dc blocking capacitor C2 and the connection socket 42 corresponding to the antenna 21 through the first node a and the choke inductor L2, the voltage dividing module 501 may be coupled between the dc blocking capacitor C4 and the connection socket 44 corresponding to the antenna 22 through the choke inductor L4, and the detection module 502 may be coupled between the choke inductor L1 and the choke inductor L3 through the second node B.

For example, a first terminal of the first choke inductor L1 is coupled between the first dc blocking capacitor C1 and the first connection socket 41, a second terminal of the first choke inductor L1 is coupled to a second terminal of the third choke inductor L3, a first terminal of the second choke inductor L2 is coupled between the second dc blocking capacitor C2 and the second connection socket 42, a second terminal of the second choke inductor L2 is coupled to the first node, a first terminal of the third choke inductor L3 is coupled between the third dc blocking capacitor C3 and the third connection socket 43, a first terminal of the fourth choke inductor L4 is coupled between the fourth dc blocking capacitor C4 and the fourth connection socket 44, and a second terminal of the fourth choke inductor L4 is coupled to a first terminal of the voltage dividing resistor R1.

In addition, the voltage dividing module 501 may include a voltage dividing resistor R1, and the voltage dividing resistor R1 is coupled in series between the ground GND1 and the choke inductor L4. The detection module 502 and the power supply module 503 are similar to the detection module 401 and the power supply module 402 shown in fig. 4, and are not described in detail here.

The detection point of the radio frequency system can be a point which generates potential change along with the change of the resistance of the cable31 or the cable32, and the resistance of the cable31 or the resistance of the cable32 can be determined to change according to the potential change of the detection point, so that the cable which is buckled and loosened with the connecting seat can be determined.

For example, in the radio frequency system shown in fig. 5, the detection point may be any point between the choke inductance L1 and the choke inductance L3, and the detection module 502 may be coupled to any point between the choke inductance L1 and the choke inductance L3.

In the detection process, the potential of the detection point can be acquired through the detection module, so that the connection state of each cable corresponding to the potential interval can be determined according to the potential interval corresponding to the acquired potential, and the buckling degree between each cable and the connection seat is also determined. Where V2 is V ═ (R1+ Rc2)/(R0+ R1+ Rc1+ Rc2), where V2 is the potential of the detection point, V is the potential of the dc voltage source V0, R0 is the resistance value corresponding to the pull-up resistor R0, R1 is the resistance value corresponding to the voltage dividing resistor R1, Rc1 is the resistance value corresponding to cable31, and Rc2 is the resistance value corresponding to cable 32.

If cable31 and cable32 are both completely buckled with the connecting seat, then Rc1 and Rc2 are both minimum resistance values, R1+ Rc2 and R0+ R1+ Rc1+ Rc2 are all kept unchanged, at this time, the potential V2 of the detection point can correspond to an accurate parameter value, then the parameter value can be used as the potential corresponding to cable31 and cable32 which are both completely buckled, and also can be used as a reference value, and if the obtained potential V is greater than or less than the parameter value, it indicates that at least one cable of the electronic device is buckled and loosened.

Specifically, when cable31 is loosely engaged and cable32 is completely engaged, it means that the resistance of Rc1 increases and R1+ Rc2 remains unchanged, but R0+ R1+ Rc1+ Rc2 increases, that is, the numerator in the equation for calculating potential V2 does not change and the denominator increases, and the potential V2 at the detection point decreases from the reference value.

For example, if the variable of the resistance of the cable31 increases by Δ Rc1, the potential after the change may be V3 ═ V ═ (R1+ Rc2)/(R0+ R1+ Rc1+ Rc2+ Δ Rc1), and the potential range corresponding to the complete engagement of the cable31 with the loose engagement and the cable32 may be [ V × (R1+ Rc2)/(R0+ R1+ Rc1+ Rc2+ Δ Rc1), V × (R1+ Rc2)/(R0+ R1+ Rc1+ Rc 2)).

Where V3 is the potential of the detection point, V is the potential of the dc voltage source V0, R0 is the resistance value corresponding to the pull-up resistor R0, R1 is the resistance value corresponding to the voltage dividing resistor R1, Rc1 is the resistance value corresponding to cable31, Rc2 is the resistance value corresponding to cable32, and Δ Rc1 is the resistance increment corresponding to cable 31.

When cable31 is completely engaged and cable32 is engaged and loosened, indicating that the resistance of Rc2 increases, R1+ Rc2 increases, R0+ R1+ Rc1+ Rc2 also increases, and the proportion of Rc2 increase in R1+ Rc2 is greater than the proportion of Rc2 increase in R0+ R1+ Rc1+ Rc2, the potential V2 at the detection point increases more than the reference value.

For example, if the variable of the resistance increase of cable32 is Δ Rc2, the potential after the change may be V4 ═ V ═ (R1+ Rc2+ Δ Rc2)/(R0+ R1+ Rc1+ Rc2+ Δ Rc2), and the potential ranges corresponding to complete engagement of cable31 and disengagement of cable32 engagement may be (V × (R1+ Rc2)/(R0+ R1+ Rc1+ Rc2), V × (R2 + Rc2+ Δ Rc 2)/(R2 + Rc2+ Δ Rc2) ].

Where V4 is the potential of the detection point, V is the potential of the dc voltage source V0, R0 is the resistance value corresponding to the pull-up resistor R0, R1 is the resistance value corresponding to the voltage dividing resistor R1, Rc1 is the resistance value corresponding to cable31, Rc2 is the resistance value corresponding to cable32, and Δ Rc2 is the resistance increment corresponding to cable 31.

When both of cable31 and cable32 are engaged with and released from the connector holder, the resistances corresponding to cable31 and cable32 are increased, and the potential after the change may be V5 ═ V (R1+ Rc2+ Δ Rc1+ Δ Rc2)/(R0+ R1+ Rc1+ Rc2+ Δ Rc1+ Δ Rc2), where V5 is the potential of the detection point, V is the potential of the dc voltage source V0, R0 is the resistance value corresponding to the pull-up resistor R0, R1 is the resistance value corresponding to the divider resistor R1, Rc1 is the resistance value corresponding to cable31, Rc2 is the resistance value corresponding to cable32, Δ Rc1 is the incremental resistance corresponding to cable31, and Δ Rc2 is the incremental resistance corresponding to cable 31.

However, in practical application, if both of cable31 and cable32 are buckled with the connecting seat and loosened, the resistances corresponding to cable31 and cable32 are fluctuated, that is, the resistance corresponding to each cable is randomly changed, the potential at the detecting point may be greater than the potential corresponding to the reference value, or may be smaller than the potential corresponding to the reference value. Therefore, if there is a potential greater than the reference value or a potential smaller than the reference value among the plurality of potentials at the detection point acquired over a period of time, it is described that both of cable31 and cable32 of the electronic device are buckled and loosened.

Further, referring to fig. 6, the voltage dividing module 501 may further include a ground capacitor C5, and by providing the ground capacitor C5 between the two radio frequency circuits, the radio frequency signals of the radio frequency system can be connected in series in the two radio frequency circuits, and the ground capacitor C5 guides the radio frequency signals to the ground GND2, so that the radio frequency signals in one radio frequency circuit are prevented from entering the other radio frequency circuit through the radio frequency system, and thus the isolation between the cable31 and the cable32 can be improved.

A first terminal of the capacitor to ground C5 may be connected between the choke inductor L1 and the choke inductor L3, and a second terminal of the capacitor to ground C5 may be coupled to the ground GND 2.

It should be noted that, in the above embodiment, the power supply module 503 and the voltage dividing module 501 of the radio frequency system are located on a sub-board of the electronic device, and the detection module 502 of the radio frequency system is located on a main board of the electronic device. However, in practical applications, the position of each circuit module of the radio frequency system may be adjusted according to the layout design of the main board and the sub-board. For example, the power supply module 503 and the voltage dividing module 501 may be disposed on the main board, and the detection module 502 may be disposed on the sub-board; alternatively, the power supply module 503 and the detection module 502 may be disposed on the main board, and the voltage division module 501 may be disposed on the sub-board; alternatively, the power supply module 503 may be disposed on the main board, and the voltage dividing module 501 and the detection module 502 may be disposed on the sub-board; or, the voltage dividing module 501, the detecting module 502, and the power supplying module 503 are all disposed on the main board or the sub-board, and the position of each circuit module in the radio frequency system is not limited in this embodiment.

Further, in the rf system shown in fig. 5 and fig. 6, the detecting module 502 is coupled between the dc blocking capacitor C1 and the connection socket 41 corresponding to the rf circuit 11 through the choke inductor L1, and is coupled between the dc blocking capacitor C3 and the connection socket 43 corresponding to the rf circuit 12 through the choke inductor L3.

In other embodiments, when the detection module 502 is coupled between the dc blocking capacitor C1 and the connection socket 41 corresponding to the rf circuit 11 through the choke inductor L1, the detection module 502 may be coupled between the dc blocking capacitor C4 and the connection socket 44 corresponding to the antenna 22 through the choke inductor L3, and then the first end of the choke inductor L4 is coupled between the dc blocking capacitor C3 and the connection socket 43 corresponding to the rf circuit 12, and the second end may be coupled to the ground potential 1 through the voltage dividing module 501.

Alternatively, when the detection module 502 is coupled between the dc blocking capacitor C3 and the connection socket 43 corresponding to the radio frequency circuit 12 through the choke inductor L3, the detection module 502 may be coupled between the dc blocking capacitor C2 and the connection socket 42 corresponding to the antenna 21 through the choke inductor L1, and then the power supply module 503 may be coupled between the dc blocking capacitor C1 and the connection socket 41 corresponding to the radio frequency circuit 11 through the choke inductor L2.

Of course, the detection module 502 may also be coupled between two adjacent cables in other manners, and the connection manner of the cables is not limited in this embodiment of the application.

To sum up, the radio frequency system that this application embodiment provided, through setting up power module, detection module and partial pressure module, and detection module is respectively through 2 radio frequency connecting lines couplings among choke inductance and the electronic equipment, thereby can appear when the lock is not hard up in at least one radio frequency connecting line, the partial pressure that detects every radio frequency connecting line and partial pressure module changes, and then can confirm whether the not hard up condition of lock appears in every radio frequency connecting line according to the electric potential that detection module obtained, need not to set up corresponding digital signal line for every radio frequency connecting line, can confirm whether there is the not hard up condition of lock in every radio frequency connecting line, can reduce the required hardware of the lock degree of confirming every radio frequency connecting line, and reduce the cost of the lock degree of detecting every radio frequency connecting line.

And, through setting up blocking capacitor between radio frequency circuit and the connecting seat that corresponds, and set up blocking capacitor between antenna and the connecting seat that corresponds, and through choke inductance with power module and voltage division module connection between antenna and the connecting seat that corresponds, and through choke inductance with detection module coupling between radio frequency circuit and the connecting seat that corresponds, can prevent that the radio frequency signal in the radio frequency circuit from getting into the radio frequency system, also can prevent that the electric current in the radio frequency system from getting into the radio frequency circuit, thereby can improve the isolation between radio frequency system and the radio frequency circuit, improve the degree of accuracy of radio frequency system.

In addition, the ground capacitor is arranged in the voltage division module, so that the ground capacitor is positioned between the two radio frequency circuits, and a video signal of a radio frequency system connected in series in the radio frequency circuit can be guided to the ground potential through the ground capacitor, so that the radio frequency signal in one radio frequency circuit can be prevented from entering the other radio frequency circuit through the radio frequency system, and the isolation between the two radio frequency circuits can be improved.

Fig. 7 is a schematic flow chart of a detection method provided by an embodiment of the present application, which may be applied to the processor connected to the radio frequency system as shown in fig. 2, by way of example and not limitation, and referring to fig. 7, the method includes:

step 701, acquiring potential information corresponding to a detection point in a radio frequency system.

Wherein the potential information is used for representing the current potential level at the detecting point. Furthermore, the detection point of the radio frequency system may be any point between the choke inductance L1 and the choke inductance L3 in the radio frequency system shown in fig. 5 or fig. 6, or may be another circuit node that can change according to the change of the resistance corresponding to the cable when the cable is loosened by buckling, and the degree of buckling between each cable and the connector can be determined according to the potential change of the circuit node.

In the process of producing the electronic equipment, the cable can be coupled with the connecting seat of the electronic equipment, so that the radio frequency circuit and the antenna are coupled through the cable, but the condition that part of the cable is not completely buckled with the connecting seat possibly exists in a plurality of cables, and the radio frequency communication of the electronic equipment is influenced. Or, in the process of using the electronic device, the electronic device may be affected by collision and impact, which may cause the fastening between the cable in the electronic device and the connection seat to be loose or the conductivity to be deteriorated, which may increase the attenuation of the radio frequency signal, and may cause the problem of the communication quality of the electronic device to be decreased.

The embodiment of the application provides a detection method for detecting whether the locks between each cable and the corresponding connecting seat in the electronic equipment are loose, namely, detecting whether each cable and the corresponding connecting seat are not completely locked, so that the locks of the cables can be reminded to be loose, and the connection states of the locks corresponding to the locks of the cables can be stored.

In the process of detecting whether the cable is buckled and loosened, the processor can be combined with the radio frequency system shown in fig. 2 to acquire potential information acquired by the detection module in the radio frequency system, so that in the subsequent step, the processor can determine whether the cable of the electronic equipment is buckled and loosened with the corresponding connecting seat according to the potential information.

For example, the processor may continuously obtain the potential information sent by the detection module in the radio frequency system, or may periodically obtain the potential information sent by the detection module, where a period for obtaining the potential information may be adjusted according to a circuit of the detection module, and a manner for obtaining the potential information is not limited in this embodiment of the application.

And step 702, determining a potential interval corresponding to the potential information.

After obtaining the potential information, the processor of the electronic device may match the potential indicated by the potential information with each of the potential intervals stored in advance, and determine whether the potential indicated by the potential information falls within a certain potential interval, thereby determining the potential interval corresponding to the potential information.

The potential interval is obtained by calculation according to the resistance change range of cable in the electronic equipment. The influence of the buckling degree between the cable and the connecting seat is received, the buckling degree between the cable and the connecting seat is different, and the size of the resistor of the cable is correspondingly changed. Therefore, the variation range of the potential at the detection point can be calculated in advance from the variation range of the resistance of the cable, and the variation range of the potential can be used as the potential section, so that the connection state of the cable can be determined from the potential section.

In one possible implementation manner, after acquiring the potential information, the processor may match the potential indicated by the potential information with each potential interval. For each potential interval, the processor may compare the potential indicated by the potential information with the maximum value and the minimum value of the potential interval, and determine whether the potential indicated by the potential information falls within the potential interval, that is, determine the potential interval corresponding to the potential information. If the potential indicated by the potential information does not fall into the potential interval, the processor can match the potential indicated by the potential information with the next potential interval until the potential interval corresponding to the potential information is determined.

However, if the potential section corresponding to the potential information is not determined after traversing each potential section, which indicates that at least one cable of the electronic device has an abnormality other than the fastening looseness, for example, the electronic device may have an abnormality such as a cable connection error or a cable disconnection, it may be determined that the cable of the electronic device has other types of abnormalities.

It should be noted that, in the process of predetermining the potential interval, the reference value and the variation range of the potential at the detection point can be determined according to the variation range of the resistance of each cable in the electronic device, so that the variation range of the potential can be used as the potential interval, and whether the fastening looseness occurs between each cable and the connection seat can be determined according to the potential interval where the potential at the detection point is located.

The reference value is the potential of the detection point when each cable is completely buckled, and the potential interval is the potential variation range which is possible to appear in the potential of the detection point when any cable is buckled and loosened. The reference value may be larger than the maximum value of a certain potential section or smaller than the minimum value of a certain potential section.

For example, taking the radio frequency system shown in fig. 5 or fig. 6 as an example, the electronic device includes cable31 and cable32, and if both cable31 and cable32 are completely buckled, the potential at the detection point may be b; when only the cable31 is buckled and loosened, the potential region corresponding to the potential of the detection point can be [ a, b ]; when only the cable32 is loose, the potential interval corresponding to the potential at the detecting point may be (b, c) where b is a reference value, [ a, b ] and (b, c ] are potential intervals, and a is smaller than b and c is larger than b.

And 703, determining the buckling degree between the radio frequency connecting line of the electronic equipment and the connecting seat according to the potential interval corresponding to the potential information.

In a possible implementation manner, the processor may search, according to the determined potential interval, a connection state corresponding to the potential interval from a pre-stored correspondence relationship, so as to determine whether there is a loose fastening condition between each cable of the electronic device and the corresponding connection seat according to the connection state obtained by the search.

The processor may pre-store a corresponding relationship between different potential sections and connection states, where the corresponding relationship may include at least two potential sections, and each potential section corresponds to a connection state of each cable. Also, the connection state may be used to indicate a degree of engagement between the cable and the corresponding connection holder. For example, the connection state may indicate a plurality of engagement states, such as complete engagement or loose engagement, between the cable and the connection seat.

It should be noted that, after determining the degree of engagement between each cable and the connection seat, the processor may store the connection state indicating the degree of engagement in the memory connected to the processor, so that when the electronic device is maintained, a user may determine whether the cable of the electronic device is engaged or not according to the connection state stored in the memory, and the electronic device is maintained conveniently.

Alternatively, the processor may continue to perform step 704 after performing step 703. Certainly, the treater can also carry out other operations according to the lock degree between cable and the connecting seat, and this application embodiment does not do the restriction to the operation that the treater carried out according to the lock degree between cable and the connecting seat.

Step 704, when the fastening looseness exists between the radio frequency connecting wire and the connecting seat, reminding that the fastening looseness exists between the radio frequency connecting wire and the connecting seat.

After the treater is confirming the lock degree between cable and the connecting seat, if there is the not hard up condition of lock between cable and the connecting seat, display screen and/or the speaker that the treater is connected can be controlled to the treater, reports to the police to the user, in time reminds electronic equipment's cable and connecting seat lock not hard up to the user can in time maintain electronic equipment.

For example, the processor may obtain a prestored cable abnormal text and control the display screen to display the cable abnormal text, for example, the display screen may display "the radio frequency connection line is buckled and loosened, please check! ". And/or the processor can also acquire the prestored cable abnormal voice and control the loudspeaker to play the cable abnormal voice, for example, the loudspeaker can play' the fastening and loosening of the radio frequency connecting line, please check! ".

In summary, according to the detection method provided by the embodiment of the application, the potential information corresponding to the detection point in the radio frequency system is obtained, the potential information is compared with the preset reference value to obtain the comparison result, the buckling degree between each radio frequency connection line and the corresponding connection seat is determined according to the comparison result, the buckling degree of each radio frequency connection line in the two radio frequency connection lines can be determined according to the comparison result without setting a corresponding digital signal line for each radio frequency connection line, whether each radio frequency connection line is buckled or not is determined, hardware required for determining the buckling degree of each radio frequency connection line can be reduced, and the cost for detecting the buckling degree of each radio frequency connection line is reduced.

The circuit architectures shown in fig. 1 to 6 and the method flow shown in fig. 7 can be applied to electronic devices. The following describes an electronic apparatus according to an embodiment of the present application. Referring to fig. 8, fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.

The electronic device may include a processor 810, an external memory interface 820, an internal memory 821, a Universal Serial Bus (USB) interface 830, a charge management module 840, a power management module 841, a battery 842, an antenna 21, an antenna 22, a mobile communication module 850, a wireless communication module 860, an audio module 870, a speaker 870A, a receiver 870B, a microphone 870C, a headset interface 870D, a sensor module 880, a button 890, a motor 891, an indicator 892, a camera 893, a display 894, and a Subscriber Identification Module (SIM) card interface 895, among others. The sensor module 880 may include a pressure sensor 880A, a gyroscope sensor 880B, an air pressure sensor 880C, a magnetic sensor 880D, an acceleration sensor 880E, a distance sensor 880F, a proximity light sensor 880G, a fingerprint sensor 880H, a temperature sensor 880J, a touch sensor 880K, an ambient light sensor 880L, a bone conduction sensor 880M, and the like.

It is to be understood that the illustrated structure of the embodiment of the present invention does not limit the electronic device. In other embodiments of the present application, an electronic device may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components may be used. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 810 may include one or more processing units, such as: the processor 810 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a memory, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

The controller can be a neural center and a command center of the electronic device. The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in processor 810 for storing instructions and data. In some embodiments, the memory in processor 810 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 810. If the processor 810 needs to use the instruction or data again, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 810, thereby increasing the efficiency of the system.

In some embodiments, processor 810 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The I2C interface is a bi-directional synchronous serial bus that includes a serial data line (SDA) and a Serial Clock Line (SCL). In some embodiments, processor 810 may include multiple sets of I2C buses. The processor 810 may be coupled to the touch sensor 880K, the charger, the flash, the camera 893, etc., respectively, through different I2C bus interfaces. For example: the processor 810 may be coupled to the touch sensor 880K via an I2C interface, such that the processor 810 and the touch sensor 880K communicate via an I2C bus interface to implement touch functionality of the electronic device.

The I2S interface may be used for audio communication. In some embodiments, processor 810 may include multiple sets of I2S buses. Processor 810 may be coupled to audio module 870 via an I2S bus enabling communication between processor 810 and audio module 870. In some embodiments, audio module 870 may communicate audio signals to wireless communication module 860 via an I2S interface to enable answering a call via a bluetooth headset.

The PCM interface may also be used for audio communication, sampling, quantizing and encoding analog signals. In some embodiments, audio module 870 and wireless communication module 860 may be coupled by a PCM bus interface. In some embodiments, the audio module 870 may also transmit audio signals to the wireless communication module 860 through the PCM interface, so as to receive phone calls through the bluetooth headset. Both the I2S interface and the PCM interface may be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous communications. The bus may be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is generally used to connect processor 810 and wireless communication module 860. For example: the processor 810 communicates with a bluetooth module in the wireless communication module 860 through a UART interface to implement a bluetooth function. In some embodiments, the audio module 870 may transmit the audio signal to the wireless communication module 860 through the UART interface, so as to realize the function of playing music through the bluetooth headset.

MIPI interfaces may be used to connect processor 810 with peripheral devices such as display screen 894, camera 893, and the like. The MIPI interface includes a Camera Serial Interface (CSI), a Display Serial Interface (DSI), and the like. In some embodiments, the processor 810 and the camera 893 communicate through a CSI interface to implement the capture functionality of the electronic device. The processor 810 and the display screen 894 communicate through the DSI interface to implement the display function of the electronic device.

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal and may also be configured as a data signal. In some embodiments, a GPIO interface may be used to connect processor 810 with camera 893, display 894, wireless communication module 860, audio module 870, sensor module 880, and the like. The GPIO interface may also be configured as an I2C interface, an I2S interface, a UART interface, a MIPI interface, and the like.

The USB interface 830 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 830 may be used to connect a charger to charge the electronic device, and may also be used to transmit data between the electronic device and a peripheral device. And the earphone can also be used for connecting an earphone and playing audio through the earphone. The interface may also be used to connect other electronic devices, such as AR devices and the like.

It should be understood that the interface connection relationship between the modules according to the embodiment of the present invention is only an exemplary illustration, and does not limit the structure of the electronic device. In other embodiments of the present application, the electronic device may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The charging management module 840 is configured to receive charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 840 may receive charging input from a wired charger via the USB interface 830. In some wireless charging embodiments, the charging management module 840 may receive a wireless charging input through a wireless charging coil of the electronic device. While the charging management module 840 charges the battery 842, the power management module 841 may also supply power to the electronic device.

The power management module 841 is used to connect the battery 842, the charging management module 840 and the processor 810. The power management module 841 receives inputs from the battery 842 and/or the charge management module 840 and provides power to the processor 810, the internal memory 821, the external memory, the display 894, the camera 893, and the wireless communication module 860, among others. The power management module 841 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In some other embodiments, the power management module 841 may also be disposed in the processor 810. In other embodiments, the power management module 841 and the charging management module 840 may be disposed in the same device.

The wireless communication function of the electronic device may be implemented by the antenna 1, the antenna 2, the mobile communication module 850, the wireless communication module 860, the modem processor, the baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in an electronic device may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 850 may provide a solution including 2G/3G/4G/5G wireless communication applied on the electronic device. The mobile communication module 850 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 850 may receive electromagnetic waves from the antenna 1, filter, amplify, etc. the received electromagnetic waves, and transmit the electromagnetic waves to the modem processor for demodulation. The mobile communication module 850 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 850 may be provided in the processor 810. In some embodiments, at least some of the functional blocks of the mobile communication module 850 may be disposed in the same device as at least some of the blocks of the processor 810. The radio frequency circuit in the above embodiment may be the mobile communication module 850.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs sound signals through an audio device (not limited to the speaker 870A, the receiver 870B, etc.) or displays images or video through the display screen 894. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be separate from the processor 810, in the same device as the mobile communication module 850 or other functional modules.

The wireless communication module 860 may provide solutions for wireless communication applied to electronic devices, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), Bluetooth (BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 860 may be one or more devices that integrate at least one communication processing module. The wireless communication module 860 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 810. The wireless communication module 860 may also receive signals to be transmitted from the processor 810, frequency modulate them, amplify them, and convert them into electromagnetic waves via the antenna 2 to radiate them.

In some embodiments, antenna 1 of the electronic device is coupled to mobile communication module 850 and antenna 2 is coupled to wireless communication module 860, such that the electronic device may communicate with the network and other devices via wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), Long Term Evolution (LTE), LTE, BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The electronic device implements display functions via the GPU, the display screen 894, and the application processor, etc. The GPU is a microprocessor for image processing, and is connected to a display screen 894 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 810 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 894 is used to display images, video, and the like. The display screen 894 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the electronic device may include 1 or N display screens 894, N being a positive integer greater than 1.

The external memory interface 820 may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the electronic device. The external memory card communicates with the processor 810 through the external memory interface 820 to implement data storage functions. For example, files such as music, video, etc. are saved in an external memory card.

The internal memory 821 may be used to store computer-executable program code, which includes instructions. The processor 810 executes various functional applications of the electronic device and data processing by executing instructions stored in the internal memory 821. The internal memory 821 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The data storage area can store data (such as audio data, phone book and the like) created in the using process of the electronic device. In addition, the internal memory 821 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like.

The electronic device may implement audio functions via audio module 870, speaker 870A, receiver 870B, microphone 870C, headphone interface 870D, and an application processor, among others. Such as music playing, recording, etc.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium and can implement the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include at least: any entity or apparatus capable of carrying computer program code to an electronic device, a recording medium, computer Memory, Read-Only Memory (ROM), Random-Access Memory (RAM), an electrical carrier signal, a telecommunications signal, and a software distribution medium. Such as a usb-disk, a removable hard disk, a magnetic or optical disk, etc. In certain jurisdictions, computer-readable media may not be an electrical carrier signal or a telecommunications signal in accordance with legislative and patent practice.

Finally, it should be noted that: 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

1. A radio frequency system, comprising: the antenna comprises a first radio frequency circuit, a second radio frequency circuit, a first antenna, a second antenna, a first radio frequency connecting line and a second radio frequency connecting line, wherein the first antenna is coupled with the first radio frequency circuit through the first radio frequency connecting line;

2. The radio frequency system of claim 1, further comprising: a capacitance to ground, a first end of the capacitance to ground being coupled between the first radio frequency connection line and the second radio frequency connection line, a second end of the capacitance to ground being coupled with a third potential, the first potential being higher than the third potential.

3. The radio frequency system according to any of claims 1 to 2, further comprising a power supply, the first node being coupled to the power supply;

4. A radio frequency system according to any one of claims 1 to 3, characterized in that the radio frequency system further comprises: the second node and the detection module;

5. The RF system of claim 4, wherein the detection module is an ADC or a voltage comparator.

6. The radio frequency system according to any of claims 1 to 5, further comprising:

7. The radio frequency system according to any of claims 1 to 6, further comprising: a second node, which is any point between the first radio frequency connection line and the second radio frequency connection line;

8. The RF system according to claim 7, wherein when both ends of the first RF connection line are fully engaged with the corresponding connecting sockets respectively and both ends of the second RF connection line are fully engaged with the corresponding connecting sockets respectively, the potential of the second node is in a first state;

9. The rf system according to any one of claims 1 to 8, wherein the voltage dividing element is a resistor, and the second potential and the third potential are both ground potentials.

10. An electronic device, comprising: memory, a processor, a computer program stored in the memory and executable on the processor, and the radio frequency system according to any of claims 1 to 9, wherein the processor, when executing the computer program, implements the detection of the radio frequency connection line in the electronic device based on the radio frequency system according to any of claims 1 to 9.

11. The electronic device of claim 10, further comprising: at least one of a display and a speaker;

12. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, enables detection of a radio frequency connection line in an electronic device based on a radio frequency system according to any one of claims 1 to 9.