A method for detecting antenna matching of a wireless AP and a related device

Abstract

The application discloses an antenna matching detection method of a wireless AP and a related device, and relates to the field of communication technologies.In the application, a CPU performs the following operations on two antennas corresponding to a transmission channel of the wireless AP: in the process of transmitting a to-be-sent signal to one antenna for sending, the feedback power of the to-be-sent signal is obtained through a coupler; based on the obtained feedback power of the to-be-sent signal corresponding to each of the two antennas, a feedback coefficient is obtained; when the feedback coefficient is greater than a preset standing wave threshold, it is determined that at least one of the two antennas is abnormally matched with the wireless AP. In this way, the approximate standing wave ratio of the two antennas is calculated by using a double-antenna detection method, only one coupler needs to be installed in a radio frequency front end, the installation and operation and maintenance costs of the wireless AP are greatly reduced, and the accuracy of a traditional standing wave detection method is retained.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an antenna matching detection method and related apparatus for a wireless access point (AP). Background Technology

[0002] A wireless access point (AP) is the access point for mobile computer users to access a wired network. It is the core device for building a wireless local area network (WLAN) and is mainly used in broadband homes, buildings, and campuses. It can cover a range of tens to hundreds of meters.

[0003] Wireless access points (APs) typically have several antennas for radio frequency (RF) transmission and reception. This means they radiate RF energy into the external environment and simultaneously receive RF energy radiated by other antennas in the environment. Typically, wireless APs are connected to antennas via RF connectors, such as standard I-PEX, SMA, and N-type connectors. In practical applications, vibrations from the external environment can cause these RF connectors to loosen or detach, preventing the antennas from radiating effectively. Furthermore, obstacles around the antenna, such as metal decorative panels or steel reinforcement, can also reduce the antenna's radiation characteristics.

[0004] In related technologies, the following methods are mainly used to detect the matching status of an antenna, that is, to detect whether the antenna has normal radiation characteristics:

[0005] Method 1: Detect the strength of the transmitted signal and the strength of the reflected echo signal. By comparing the two signal strengths, the standing wave ratio (SWR) is obtained, and then the matching status of the antenna is determined.

[0006] Method 2: Detect the radio frequency energy of the transmitted signal after it is transmitted from one antenna to the external environment and received by another antenna, and compare it with a preset threshold to determine the matching status of the antennas.

[0007] Method 3: Detect the antenna matching status by detecting the transmission power and signal quality of the transmitted signal.

[0008] When using method one, in order to distinguish between the transmitted signal and the echo signal, two different couplers and an additional standing wave detection module need to be installed in the wireless AP, which results in a large implementation cost.

[0009] When using method two, the transmitted and received signals of the external antenna are greatly affected by the antenna placement and the surrounding environment, which may lead to misjudgment or missed judgment in the detection of antenna matching status.

[0010] When using method three, the transmit power is affected by the output state of the RF power amplifier PA. Therefore, the detection of transmit power is prone to deviation, resulting in a low accuracy of antenna matching state detection.

[0011] In view of this, an improved antenna matching detection method is needed to address the above problems. Summary of the Invention

[0012] This application provides an antenna matching detection method and related apparatus for a wireless AP, which can improve the stability of intelligent following devices in actual use.

[0013] In a first aspect, embodiments of this application provide an antenna matching detection method for a wireless access point (AP), the method comprising:

[0014] For the two antennas corresponding to one transmission channel of the wireless AP, the following operations are performed respectively: during the process of transmitting the signal to be transmitted to one antenna, the feedback power of the signal to be transmitted is obtained through the coupler. The feedback power includes: the transmission separation power obtained when the signal to be transmitted passes through the coupler, and the reflection separation power obtained when the echo signal reflected by the signal to be transmitted passes through the coupler during the transmission process.

[0015] The feedback coefficient is obtained based on the feedback power of the signal to be transmitted corresponding to each of the two antennas.

[0016] When the feedback coefficient is greater than the preset standing wave threshold, at least one of the two antennas is determined to be an abnormal match with the wireless AP.

[0017] Secondly, embodiments of this application also provide an antenna matching detection device for a wireless access point (AP), the device comprising:

[0018] The detection module is used to perform the following operations for the two antennas corresponding to a transmission channel of a wireless AP: during the process of transmitting the signal to be transmitted to one antenna, the feedback power of the signal to be transmitted is obtained through the coupler. The feedback power includes: the transmission separation power obtained when the signal to be transmitted passes through the coupler, and the reflection separation power obtained when the echo signal reflected by the signal to be transmitted passes through the coupler during the transmission process.

[0019] The calculation module is used to obtain the feedback coefficient based on the feedback power of the signals to be transmitted corresponding to the two antennas respectively;

[0020] The evaluation module is used to determine that at least one of the two antennas is abnormally matched with the wireless AP when the feedback coefficient is greater than the preset standing wave threshold.

[0021] Optionally, if the wireless AP includes a first transmission channel, and the first transmission channel includes a first antenna and a second antenna, then after determining that at least one of the two antennas is an abnormal match with the wireless AP, the evaluation module is further used to:

[0022] If the first feedback power obtained based on the first antenna is greater than the second feedback power obtained based on the second antenna, then the first antenna and the wireless AP are determined to be an abnormal match.

[0023] If the first feedback power obtained based on the first antenna is less than the second feedback power obtained based on the second antenna, then the second antenna and the wireless AP are determined to be an abnormal match.

[0024] Optionally, after determining that at least one of the two antennas is an anomalous match with the wireless AP, the evaluation module is also used for:

[0025] Disable the RF transceiver function of the antenna that is mismatched with the wireless AP and send an alarm signal to the control panel.

[0026] Optionally, the evaluation module is also used for:

[0027] When the feedback coefficient is less than or equal to the preset standing wave threshold, both antennas are determined to be properly matched with the wireless AP.

[0028] Optionally, before performing the following operations on the two antennas corresponding to one transmission channel of the wireless AP, the detection module is also used to:

[0029] For any two antennas corresponding to any transmission channel of the wireless AP, a matching status test is performed to obtain the standing wave threshold of the wireless AP.

[0030] The standing wave threshold is corrected based on the detection voltage, which is the signal voltage of the signal to be transmitted before it passes through the coupler during transmission.

[0031] Thirdly, embodiments of this application provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method as described in any of the first aspects.

[0032] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the methods described in the first aspect.

[0033] Fifthly, embodiments of this application provide a computer program product that, when invoked by a computer, causes the computer to execute the method described in the first aspect.

[0034] In this embodiment, the CPU performs the following operations for the two antennas corresponding to one transmission channel of the wireless AP: during the process of transmitting the signal to be transmitted to one antenna, the feedback power of the signal to be transmitted is obtained through the coupler; based on the obtained feedback power of the signal to be transmitted corresponding to each of the two antennas, the feedback coefficient is obtained; when the feedback coefficient is greater than a preset standing wave threshold, at least one of the two antennas is determined to be an abnormal match with the wireless AP.

[0035] This approach uses a dual-antenna detection method to calculate the approximate standing wave ratio (SWR) of the two antennas, requiring only one coupler to be installed in the RF front end. This significantly reduces the installation and maintenance costs of the wireless AP while retaining the accuracy of traditional SWR detection methods. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the system architecture in an embodiment of this application;

[0037] Figure 2 This is a detailed flowchart of the antenna matching detection method for a wireless AP under the system architecture in this application embodiment;

[0038] Figure 3 This is a schematic diagram illustrating a scenario where the signal to be transmitted obtains feedback power during transmission, according to the system architecture in this application embodiment.

[0039] Figure 4 This is a flowchart illustrating how the two antennas corresponding to a transmission channel in the system architecture of this application obtain feedback power.

[0040] Figure 5 This is a schematic diagram illustrating the scenario in which signal 1 obtains feedback power during transmission under the system architecture of this application embodiment;

[0041] Figure 6 This is a schematic diagram illustrating the scenario in which signal 2 obtains feedback power during transmission under the system architecture of this application embodiment;

[0042] Figure 7 This is a flowchart of the antenna matching detection process for one transmission channel of a wireless AP in an embodiment of this application;

[0043] Figure 8 This is a schematic diagram of an antenna matching detection scenario for one of the transmission channels of a wireless AP in an embodiment of this application;

[0044] Figure 9 This is a schematic diagram of the structure of an antenna matching detection device for a wireless AP according to an embodiment of this application;

[0045] Figure 10 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this application. Obviously, the described embodiments are only some embodiments of the technical solutions of this application, and not all embodiments. Based on the embodiments recorded in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the technical solutions of this application.

[0047] The following describes some of the concepts involved in the embodiments of this application.

[0048] (1) Radio Frequency Front End (RFFE): The radio frequency front end contains power amplifiers, low noise amplifiers, couplers and switches. It is mainly used to complete the transmission and reception amplification of radio frequency signals, provide coupling signals and detection signals, and realize the selection and switching of the transmit and receive links and antennas through switches.

[0049] (2) Power Amplifier (PA): Its function is to amplify the radio frequency output power of the radio frequency signal so that the radio frequency signal can be fed to the antenna for radiation.

[0050] (3) Low Noise Amplifier (LNA): Its main function is to linearly amplify the weak radio frequency signal received by the antenna, while suppressing various noise interferences and improving the sensitivity of the communication system.

[0051] (4) Coupler: Based on the set coupling coefficient, a small part of the signal is extracted from the signal transmission link and transmitted to the central processing unit (CPU) for power energy detection.

[0052] (5) Switch: Used to control the signal transmission path, realize the switching of the signal transmission link and the receiving link, and select and switch different antennas.

[0053] The preferred embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0054] See Figure 1As shown in this embodiment, the wireless AP includes a CPU 100, a radio frequency front-end RFFE 101, multiple transmission channels 102, and each transmission channel 102 includes a first antenna 103 and a second antenna 104. When the CPU 100 performs performance testing on the first antenna 103 and the second antenna 104 corresponding to each transmission channel 102 of the wireless AP according to a set period, it performs the following operations on the first antenna 103 and the second antenna 104 respectively: during the process of transmitting the signal to be transmitted to a cable, the feedback power of the signal to be transmitted is obtained through the coupler in the radio frequency front-end 101.

[0055] Finally, based on the feedback power of the signal to be transmitted corresponding to the first antenna 103 and the feedback power of the signal to be transmitted corresponding to the second antenna 104, the feedback coefficient is obtained and compared with the preset standing wave threshold to obtain the matching status of the first antenna 103 and the second antenna 104 with the wireless AP.

[0056] Optionally, in addition to automatically performing matching status detection on the first antenna 103 and second antenna 104 corresponding to each transmission channel 102 of the wireless AP according to a set period, the CPU 100 can also perform matching status detection on the first antenna 103 and second antenna 104 corresponding to one or more transmission channels 102 of the wireless AP at a set time based on the configuration of relevant maintenance personnel.

[0057] Based on the above system architecture, see [link / reference] Figure 2 As shown in the embodiments of this application, the detailed process of antenna matching detection for the wireless AP is as follows:

[0058] Step 201: For the two antennas corresponding to one transmission channel of the wireless AP, perform the following operations respectively: During the process of transmitting the signal to be transmitted to one antenna, obtain the feedback power of the signal to be transmitted through the coupler.

[0059] The feedback power includes: the transmission separation power obtained when the signal to be transmitted passes through the coupler, and the reflection separation power obtained when the echo signal reflected during the transmission of the signal to be transmitted passes through the coupler.

[0060] For example, see the process of transmitting a signal to an antenna. Figure 3 As shown, the CPU in the wireless AP transmits the signal to be transmitted to the PA through the transmission link. The PA amplifies the RF output power of the signal to be transmitted and transmits it to the subsequent components so that the RF signal can be fed to the antenna for radiation.

[0061] When the amplified signal to be transmitted is transmitted to the coupler, the coupler extracts part of the energy from the signal according to the set coupling coefficient (e.g., 0.01) and transmits it to the CPU for power energy detection. The power corresponding to this part of the energy is the transmission separation power P1.

[0062] After passing through the coupler, the signal to be transmitted continues to be transmitted on the transmission link, passing through the switch and RF connector, until it reaches the antenna. Finally, the antenna radiates the signal to be transmitted into the external environment. When the signal to be transmitted passes through the RF connector and the antenna, due to self-interference reasons such as the aging of the RF connector and the imperfect matching between the antenna and the wireless AP, the signal to be transmitted may be partially reflected. At the same time, the radiated energy will also be reflected by the external environment. The reflected signal is called the echo signal, and the energy corresponding to the echo signal is called the echo energy. When the echo signal is retransmitted and passes through the coupler, the coupler still extracts part of the energy from it according to the set coupling coefficient. The power corresponding to this part of the energy is the reflection separation power P3.

[0063] In the above process, the ratio of P3 to P1 can represent the VSWR of the transmission link, that is, the matching state of the antenna. However, in reality, since there is only one coupler in the RF front end, and the energy corresponding to P1 and P3 is extracted by the coupler almost simultaneously, it is impossible to distinguish between P1 and P3, which makes it impossible to obtain the matching state of the antenna solely through P1 and P3.

[0064] Specifically, in this embodiment, it is assumed that the wireless AP includes a first transmission channel, which corresponds to a first antenna and a second antenna. Therefore, refer to... Figure 4 As shown, in the process of transmitting the signal to be transmitted to an antenna, the feedback power of the signal to be transmitted is obtained through a coupler, which includes the following two steps:

[0065] Step 401: During the process of transmitting the first signal to be transmitted to the first antenna, the first feedback power of the first signal to be transmitted is obtained through the coupler.

[0066] For example, see Figure 5 As shown, the CPU first configures the RF front-end to work in antenna 1 mode. During the transmission of signal 1 to antenna 1, the CPU obtains the transmit separation power P11 and the reflection separation power P13 of signal 1 through the coupler in the RF front-end. P11 and P13 together constitute the feedback power P4 of signal 1.

[0067] Step 402: During the process of transmitting the second signal to be transmitted to the second antenna for transmission, the second feedback power of the second signal to be transmitted is obtained through the coupler.

[0068] For example, see Figure 6As shown, the CPU is configured to operate the RF front-end in antenna 2 mode. During the transmission of signal 2 to antenna 2, the CPU obtains the transmit separation power P21 and the reflection separation power P23 of signal 2 through the coupler in the RF front-end. P21 and P23 together constitute the feedback power P5 of signal 2.

[0069] The switching of the transmission channel between antenna 1 and antenna 2 is accomplished by the CPU controlling the switch in the radio frequency front end.

[0070] Step 202: Obtain the feedback coefficient based on the feedback power of the signals to be transmitted corresponding to the two antennas.

[0071] Specifically, in this embodiment, the feedback coefficient is obtained based on the first feedback power and the second feedback power.

[0072] For example, the CPU obtains the feedback coefficient S using the formula S = (P4 - P5) / ((P4 + P5) / 2), and uses this to evaluate the radiation status of antenna 1 and antenna 2.

[0073] Since the energy corresponding to the transmit separation power is an order of magnitude larger than the energy corresponding to the reflective separation power, under normal circumstances, the energy deviation corresponding to the feedback power of antenna 1 and antenna 2 is very small. If there is a poor match between antenna 1 or antenna 2, there will be a significant deviation in the energy corresponding to P4 and P5. The difference between P4 and P5 can be used to estimate the link echo size of antenna 1 or antenna 2. Usually, the above formula approximates the standing wave ratio of energy reflection. The larger its absolute value, the worse the matching status between at least one of antenna 1 or antenna 2 and the wireless AP.

[0074] Therefore, based on steps 201 and 202, the dual-antenna detection method is used to obtain the feedback power of each of the two antennas through a coupler, thereby calculating the feedback coefficient that can represent the standing wave ratio. There is no need to use two couplers to distinguish between the transmitted power separation and the reflected power separation, which greatly reduces the installation and maintenance cost of the wireless AP, while retaining the accuracy of the traditional standing wave detection method. In addition, if one of antenna 1 or antenna 2 is an onboard antenna, the printed circuit board (PCB) is used directly as the medium to implement the antenna through PCB technology. It is not easy to be damaged by touch and is easy to assemble, which can further reduce the cost of the wireless AP (in this embodiment, antenna 2 is an onboard PCB antenna).

[0075] Step 203: When the feedback coefficient is greater than the preset standing wave threshold, determine that at least one of the two antennas is abnormally matched with the wireless AP.

[0076] For example, after taking the absolute value of S, it is compared with a preset standing wave threshold (e.g., 0.02). When S is greater than the preset standing wave threshold, at least one of antenna 1 and antenna 2 is determined to be an abnormal match with the wireless AP.

[0077] Furthermore, in this embodiment, the specific antenna that is abnormally matched with the wireless AP is determined by the following method:

[0078] If the first feedback power obtained based on the first antenna is greater than the second feedback power obtained based on the second antenna, then the first antenna and the wireless AP are determined to be an abnormal match.

[0079] For example, if P4 is greater than P5, then antenna 1 and the wireless AP are determined to be an abnormal match.

[0080] If the first feedback power obtained based on the first antenna is less than the second feedback power obtained based on the second antenna, then the second antenna and the wireless AP are determined to be an abnormal match.

[0081] For example, if P4 is less than P5, then antenna 2 and the wireless AP are determined to be an abnormal match.

[0082] Abnormal matching includes: the antenna's radiation characteristics being damaged, or the RF connector being loose, resulting in the antenna not being fully connected to the wireless AP, etc.

[0083] Furthermore, in this embodiment of the application, when it is determined that at least one of the two antennas is abnormally matched with the wireless AP, the CPU will disable the radio frequency transceiver function of the antenna that is abnormally matched with the wireless AP and send an alarm signal to the console.

[0084] For example, if the CPU determines that antenna 1 and the wireless AP are abnormally matched, the CPU will disable the radio frequency transceiver function of antenna 1, that is, it will no longer use antenna 1 to send and receive signals. At the same time, the CPU will feed back the value of S to the background to remind the relevant maintenance personnel to check the wireless AP. In order to reduce the failure rate of the wireless AP, the relevant maintenance personnel will check antenna 2 corresponding to the same transmission channel at the same time when checking antenna 1.

[0085] On the other hand, when the feedback coefficient is less than or equal to the preset standing wave threshold, it is determined that both antennas are properly matched with the wireless AP.

[0086] Specifically, in this embodiment of the application, before the CPU performs subsequent detection operations on the two antennas corresponding to one transmission channel of the wireless AP, the relevant maintenance personnel need to perform a matching status test on the two antennas corresponding to any one transmission channel of the wireless AP to obtain the standing wave threshold of the wireless AP.

[0087] For example, when testing the matching status of the two antennas corresponding to the first transmission channel, first ensure that the two antennas are fully matched with the wireless AP. Calculate the current feedback coefficient according to the method described above. Then, control one of the antennas to be in an abnormal match with the wireless AP, such as controlling antenna 2 to be not fully connected to the RF connector, or placing antenna 2 in a place with many metal obstacles, and calculate the current feedback coefficient. In this way, control the two antennas to form multiple different matching states with the wireless AP. Finally, based on the feedback coefficients obtained under multiple matching states, comprehensively train the final standing wave threshold of the wireless AP.

[0088] Optionally, matching state tests can be performed on two antennas corresponding to multiple transmission channels to make the training results of the standing wave threshold more accurate.

[0089] Furthermore, relevant maintenance personnel can periodically adjust the standing wave threshold based on the detection voltage, where the detection voltage is the signal voltage of the signal to be transmitted before it passes through the coupler during transmission.

[0090] For example, when the signal to be transmitted is amplified by the PA, the detection circuit in the PA can obtain the signal voltage of the signal to be transmitted, i.e., the detection voltage. Under normal conditions of the wireless AP, the power of the signal energy corresponding to this voltage is almost the same as the power of the signal energy obtained by the feedback power of the signal to be transmitted based on the coupling coefficient. If the CPU detects that the detection voltage is too different from the signal energy obtained by the CPU power energy detection, the relevant maintenance personnel will determine that there are other system problems with the wireless AP. Therefore, the entire wireless AP needs to be repaired. After the wireless AP is repaired, the standing wave threshold is measured again. The above can correct the standing wave threshold and obtain a higher accuracy. Optionally, to save maintenance costs, the above operation can also be completed at the same time during the standing wave threshold measurement stage.

[0091] The above embodiments will be further described in detail below through a specific application scenario.

[0092] A certain wireless access point (AP) has two transmission channels, A and B. Each transmission channel corresponds to a high-performance main antenna R1 and an onboard PCB antenna R2. The CPU performs performance testing on the two antennas corresponding to each transmission channel at a set period (e.g., one week). (See reference...) Figure 7 and Figure 8 As shown, the detailed process for one test of the two antennas corresponding to transmission channel A is as follows:

[0093] Step 701: Configure the RF front end to work in antenna R1 mode, and the CPU obtains feedback power P6.

[0094] Step 702: Configure the RF front end to work in antenna R2 mode, and the CPU obtains feedback power P7.

[0095] Step 703: Calculate the feedback coefficient according to the formula, and the CPU obtains the matching state of antenna R1 and antenna R2.

[0096] The process by which the CPU detects the two antennas in transmission channel B is the same as described above. After obtaining the matching status of all antennas, the CPU feeds back the data of each feedback coefficient and feedback power to the control console. After receiving the data, the relevant maintenance personnel will inspect the wireless AP. At the same time, after obtaining the matching status of each antenna, the CPU will automatically disable the RF transceiver function of the antennas that are abnormally matched, thereby improving the user experience of the wireless network.

[0097] Furthermore, although the operations of the method of this application are described in a specific order in the accompanying drawings, this does not require or imply that these operations must be performed in that specific order, or that all the operations shown must be performed to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps.

[0098] Based on the same technical concept, see [reference] Figure 9 As shown in the figure, this application embodiment also provides an antenna matching detection device for a wireless AP, the device comprising:

[0099] The detection module 901 performs the following operations for the two antennas corresponding to one transmission channel of the wireless AP: during the process of transmitting the signal to be transmitted to one antenna, the feedback power of the signal to be transmitted is obtained through the coupler. The feedback power includes: the transmission separation power obtained when the signal to be transmitted passes through the coupler, and the reflection separation power obtained when the echo signal reflected by the signal to be transmitted passes through the coupler during the transmission process.

[0100] The calculation module 902 is used to obtain the feedback coefficient based on the feedback power of the signals to be transmitted corresponding to the two antennas respectively;

[0101] Evaluation module 903 is used to determine that at least one of the two antennas is abnormally matched with the wireless AP when the feedback coefficient is greater than the preset standing wave threshold.

[0102] Optionally, if the wireless AP includes a first transmission channel, and the first transmission channel includes a first antenna and a second antenna, then after determining that at least one of the two antennas is an abnormal match with the wireless AP, the evaluation module 903 is further used to:

[0103] If the first feedback power obtained based on the first antenna is greater than the second feedback power obtained based on the second antenna, then the first antenna and the wireless AP are determined to be an abnormal match.

[0104] If the first feedback power obtained based on the first antenna is less than the second feedback power obtained based on the second antenna, then the second antenna and the wireless AP are determined to be an abnormal match.

[0105] Optionally, after determining that at least one of the two antennas is an anomalous match with the wireless AP, the evaluation module 903 is further used for:

[0106] Disable the RF transceiver function of the antenna that is mismatched with the wireless AP and send an alarm signal to the control panel.

[0107] Optionally, the evaluation module 903 is also used for:

[0108] When the feedback coefficient is less than or equal to the preset standing wave threshold, both antennas are determined to be properly matched with the wireless AP.

[0109] Optionally, before performing the following operations on the two antennas corresponding to one transmission channel of the wireless AP, the detection module 901 is also used to:

[0110] Matching status tests are performed on each antenna of the wireless AP to obtain the standing wave threshold.

[0111] The standing wave threshold is corrected based on the detection voltage, which is the signal voltage of the signal to be transmitted before it passes through the coupler during transmission.

[0112] Based on the same technical concept, this application also provides an electronic device that can implement the antenna matching detection method of the wireless AP provided in the above embodiments of this application.

[0113] In one embodiment, the electronic device may be a server, a terminal device, or other electronic devices.

[0114] See Figure 10 As shown, the electronic device may include:

[0115] At least one processor 1001 and a memory 1002 connected to at least one processor 1001. In this embodiment, the specific connection medium between the processor 1001 and the memory 1002 is not limited. Figure 10 The example shown is the connection between processor 1001 and memory 1002 via bus 1000. Bus 1000 is... Figure 10 The connections between other components are shown in bold lines only and are not intended to be limiting. The Bus 1000 can be divided into address bus, data bus, control bus, etc., for ease of representation. Figure 10 The term 1001 is represented by a single thick line, but this does not imply that there is only one bus or one type of bus. Alternatively, the processor 1001 can also be called a controller; there are no restrictions on the name.

[0116] In this embodiment, the memory 1002 stores instructions executable by at least one processor 1001. By executing the instructions stored in the memory 1002, the at least one processor 1001 can execute the antenna matching detection method for a wireless AP described above. The processor 1001 can implement... Figure 9 The functions of each module in the device shown.

[0117] The processor 1001 is the control center of the device. It can connect to various parts of the control device through various interfaces and lines. By running or executing instructions stored in memory 1002 and calling data stored in memory 1002, the processor can perform various functions and process data, thereby monitoring the device as a whole.

[0118] In one possible design, processor 1001 may include one or more processing units. Processor 1001 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications, and the modem processor mainly handles wireless communication. It is understood that the modem processor may also not be integrated into processor 1001. In some embodiments, processor 1001 and memory 1002 may be implemented on the same chip; in some embodiments, they may also be implemented on separate chips.

[0119] The processor 1001 can be a general-purpose processor, such as a CPU, digital signal processor, application-specific integrated circuit, field-programmable gate array or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, capable of implementing or executing the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the antenna matching detection method for a wireless AP disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or executed by a combination of hardware and software modules within the processor.

[0120] Memory 1002, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. Memory 1002 may include at least one type of storage medium, such as flash memory, hard disk, multimedia card, card-type memory, random access memory (RAM), static random access memory (SRAM), programmable read-only memory (PROM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), magnetic memory, magnetic disk, optical disk, etc. Memory 1002 can be any other medium capable of carrying or storing desired program code in the form of instructions or data structures that can be accessed by a computer, but is not limited thereto. In the embodiments of this application, memory 1002 can also be a circuit or any other device capable of implementing storage functions for storing program instructions and / or data.

[0121] By designing and programming the processor 1001, the code corresponding to the antenna matching detection method of a wireless AP described in the foregoing embodiments can be embedded into the chip, thereby enabling the chip to execute the code during operation. Figure 2 The illustrated embodiment describes the steps of an antenna matching detection method for a wireless access point (AP). How to design and program the processor 1001 is a technique well-known to those skilled in the art and will not be described further here.

[0122] Based on the same inventive concept, embodiments of this application also provide a storage medium storing computer instructions that, when executed on a computer, cause the computer to perform an antenna matching detection method for a wireless AP as described above.

[0123] In some possible implementations, various aspects of the antenna matching detection method for a wireless AP provided in this application can also be implemented in the form of a program product, which includes program code. When the program product is run on a device, the program code is used to cause the control device to perform the steps in the antenna matching detection method for a wireless AP according to various exemplary embodiments of this application described above.

[0124] It should be noted that although several units or sub-units of the device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of this application, the features and functions of two or more units described above can be embodied in one unit. Conversely, the features and functions of one unit described above can be further divided and embodied by multiple units.

[0125] Furthermore, although the operations of the method of this application are described in a specific order in the accompanying drawings, this does not require or imply that these operations must be performed in that specific order, or that all the operations shown must be performed to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps.

[0126] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0127] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0128] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0129] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0130] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for antenna matching detection of a wireless access point (AP), characterized in that, The wireless AP includes a first transmission channel, which corresponds to a first antenna and a second antenna. The method includes: During the process of transmitting the signal to be transmitted to the first antenna, a first feedback power of the signal to be transmitted corresponding to the first antenna is obtained through a coupler; wherein, the first feedback power includes a first transmission separation power obtained when the signal to be transmitted passes through the coupler, and a first reflection separation power obtained when the first echo signal reflected by the signal to be transmitted during the transmission passes through the coupler. The first transmission channel is switched to the second antenna. During the process of transmitting the signal to be transmitted to the second antenna, the second feedback power of the transmitted signal corresponding to the second antenna is obtained through the coupler. The second feedback power includes the second transmission separation power obtained when the signal to be transmitted passes through the coupler, and the second reflection separation power obtained when the second echo signal reflected by the signal to be transmitted passes through the coupler. Based on the first feedback power and the second feedback power, the feedback coefficient is obtained; When the feedback coefficient is greater than the preset standing wave threshold, it is determined that the first antenna and / or the second antenna are abnormally matched with the wireless AP.

2. The method as described in claim 1, characterized in that, After determining that the first antenna and / or the second antenna are an abnormal match with the wireless AP, the method further includes: If the first feedback power obtained based on the first antenna is greater than the second feedback power obtained based on the second antenna, then the first antenna and the wireless AP are determined to be an abnormal match. If the first feedback power obtained based on the first antenna is less than the second feedback power obtained based on the second antenna, then the second antenna and the wireless AP are determined to be an abnormal match.

3. The method as described in claim 2, characterized in that, After determining that the first antenna and / or the second antenna are abnormally matched with the wireless AP, the method further includes: The radio frequency transceiver function of the antenna that is abnormally matched with the wireless AP is disabled, and an alarm signal is sent to the console.

4. The method according to any one of claims 1-3, characterized in that, Also includes: When the feedback coefficient is less than or equal to the preset standing wave threshold, it is determined that both antennas are normally matched with the wireless AP.

5. The method according to any one of claims 1-3, characterized in that, Before transmitting the transmission signals to the first antenna respectively, the method further includes: For any two antennas corresponding to any transmission channel of the wireless AP, a matching status test is performed to obtain the standing wave threshold of the wireless AP. The standing wave threshold is corrected based on the detection voltage, which is the signal voltage of the signal to be transmitted before it passes through the coupler during transmission.

6. An antenna matching detection device for a wireless AP, characterized in that, The wireless AP includes a first transmission channel, which corresponds to a first antenna and a second antenna. The device includes: The detection module is configured to, during the transmission of a signal to be transmitted to the first antenna, obtain a first feedback power of the signal to be transmitted corresponding to the first antenna via a coupler; wherein the first feedback power includes a first transmission separation power obtained when the signal to be transmitted passes through the coupler, and a first reflection separation power obtained when the first echo signal reflected by the signal to be transmitted during transmission passes through the coupler; and is further configured to, switch the first transmission channel to the second antenna, and during the transmission of the signal to be transmitted to the second antenna, obtain a second feedback power of the transmitted signal corresponding to the second antenna via the coupler; wherein the second feedback power includes a second transmission separation power obtained when the signal to be transmitted passes through the coupler, and a second reflection separation power obtained when the second echo signal reflected by the signal to be transmitted during transmission passes through the coupler; The calculation module is used to obtain the feedback coefficient based on the first feedback power and the second feedback power; The evaluation module is used to determine that the first antenna and / or the second antenna are abnormally matched with the wireless AP when the feedback coefficient is greater than a preset standing wave threshold.

7. The apparatus as claimed in claim 6, characterized in that, After determining that the first antenna and / or the second antenna are an abnormal match with the wireless AP, the evaluation module is further configured to: If the first feedback power obtained based on the first antenna is greater than the second feedback power obtained based on the second antenna, then the first antenna and the wireless AP are determined to be an abnormal match. If the first feedback power obtained based on the first antenna is less than the second feedback power obtained based on the second antenna, then the second antenna and the wireless AP are determined to be an abnormal match.

8. An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method as described in any one of claims 1-5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method as described in any one of claims 1-5.

10. A computer program product, characterized in that, When the computer program product is invoked by a computer, it causes the computer to perform the method as described in any one of claims 1-5.

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