CN113285770B - Antenna state detection method, device, system, electronic equipment and storage medium - Google Patents
Antenna state detection method, device, system, electronic equipment and storage medium Download PDFInfo
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- CN113285770B CN113285770B CN202110516728.XA CN202110516728A CN113285770B CN 113285770 B CN113285770 B CN 113285770B CN 202110516728 A CN202110516728 A CN 202110516728A CN 113285770 B CN113285770 B CN 113285770B
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- H—ELECTRICITY
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- H04B17/20—Monitoring; Testing of receivers
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention discloses an antenna state detection method, an antenna state detection device, an antenna state detection system, electronic equipment and a storage medium. The antenna state detection method comprises the following steps: determining a first power of a test signal in the process of transmitting the test signal through the antenna; determining a second power of the echo signal in case the antenna receives an echo signal corresponding to the test signal; determining return loss according to the first power and the second power; and determining the state of the antenna according to the return loss. Therefore, the efficient and rapid detection of states such as antenna looseness and mismatch is realized.
Description
Technical Field
The present invention relates to antenna status detection technologies, and in particular, to an antenna status detection method, apparatus, system, electronic device, and storage medium.
Background
The antenna is an important device for transmitting and receiving signals of electronic equipment, and the loosening of the antenna can influence the transmission and the reception of the signals, so that the loosening state of the antenna is necessary to be detected. The antenna is installed inside electronic equipment, and among the prior art, it is required to dismantle electronic equipment, whether the antenna looseness phenomenon exists to artificial observation. Whether mode through manual observation antenna is not hard up wastes time and energy, and efficiency is lower, still has the risk of dismantling improper damage electronic equipment.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, whether an antenna is loose or not is observed manually, time and labor are wasted, efficiency is low, and the risk of improper disassembly and damage to electronic equipment exists.
The invention solves the technical problems by the following technical scheme:
in a first aspect, an antenna state detection method is provided and applied to an electronic device, where the electronic device includes an antenna; the antenna state detection method comprises the following steps:
determining a first power of a test signal in the process of transmitting the test signal through the antenna;
determining a second power of the echo signal in case the antenna receives an echo signal corresponding to the test signal;
determining return loss according to the first power and the second power;
and determining the state of the antenna according to the return loss.
Optionally, transmitting the test signal includes:
transmitting the test signal at a target power;
determining return loss from the first power and the second power, comprising:
and determining the return loss according to the target power, the first power and the second power.
Optionally, the electronic device includes a radio frequency front end device and a radio frequency transceiver, the radio frequency front end device is integrated with a coupler, the radio frequency transceiver is integrated with a power detector, one end of the coupler is connected with the antenna, and the other end of the coupler is connected with the power detector;
determining a first power of the test signal, comprising:
controlling the coupler to be in a forward setting state so as to couple the test signal by the coupler and output the coupled test signal to the power detector;
and determining the first power of the test signal according to the output result of the power detector.
Optionally, determining the second power of the echo signal includes:
controlling the coupler to be in a reverse setting state so as to couple the echo signals by the coupler and outputting the coupled echo signals to a power detector;
and determining the second power of the echo signal according to the output result of the power detector.
Optionally, determining the return loss according to the first power and the second power includes:
determining a difference between the first power and the second power as the return loss;
alternatively, a ratio of the first power to the second power is determined as the return loss.
Optionally, determining the return loss according to the target power, the first power and the second power includes:
determining a first difference between the target power and the first power and a second difference between the first power and the second power, and determining the return loss according to the first difference and the second difference;
or determining a first ratio of the target power to the first power and a second ratio of the first power to the second power, and determining the return loss according to the first ratio and the second ratio.
Optionally, determining the state of the antenna according to the return loss includes:
under the condition that the return loss falls within a preset loss range, determining the state of the antenna to be an abnormal state;
and under the condition that the return loss does not fall within a preset loss range, determining that the state of the antenna is a normal state.
Optionally, the method further comprises:
and generating an alarm prompt under the condition that the state of the antenna is determined to be an abnormal state.
In a second aspect, an antenna state detection apparatus is provided and applied to an electronic device, where the electronic device includes an antenna; the antenna state detection method comprises the following steps:
the first determining module is used for determining first power of the test signal in the process of transmitting the test signal through the antenna;
a second determining module, configured to determine a second power of the echo signal if the antenna receives the echo signal corresponding to the test signal;
and the third determining module is used for determining the return loss according to the first power and the second power and determining the state of the antenna according to the return loss.
In a third aspect, an antenna state detection system is provided, for application to an electronic device including an antenna; the antenna state detection system includes: the device comprises a controller, a radio frequency front-end device and a radio frequency transceiver, wherein the radio frequency front-end device is integrated with a coupler, the radio frequency transceiver is integrated with a power detector, one end of the coupler is connected with the antenna, and the other end of the coupler is connected with the power detector;
the controller is used for controlling the coupler to be in a forward setting state in the process of transmitting a test signal through the antenna, and controlling the coupler to be in a reverse setting state under the condition that the antenna receives an echo signal corresponding to the test signal;
a coupler for coupling the test signal and outputting the coupled test signal to a power detector in the forward setting state, and coupling the echo signal and outputting the coupled echo signal to a power detector in the reverse setting state;
the power detector is used for detecting first power of the test signal and second power of the echo signal;
the controller is further configured to determine a return loss according to the first power and the second power, and determine a state of the antenna according to the return loss.
In a fourth aspect, an antenna state detection system is provided, which is applied to an electronic device including an antenna; the antenna state detection system includes: the device comprises a controller, a radio frequency front-end device and a radio frequency transceiver, wherein the radio frequency front-end device is integrated with a coupler, the radio frequency transceiver is integrated with a power detector, one end of the coupler is connected with the antenna, and the other end of the coupler is connected with the power detector;
the controller is used for controlling the antenna to emit a test signal with target power, controlling the coupler to be in a forward setting state in the process of emitting the test signal, and controlling the coupler to be in a reverse setting state under the condition that the antenna receives an echo signal corresponding to the test signal;
a coupler for coupling the test signal and outputting the coupled test signal to a power detector in the forward setting state, and coupling the echo signal and outputting the coupled echo signal to a power detector in the reverse setting state;
the power detector is used for detecting first power of the test signal and second power of the echo signal;
the controller is further configured to determine a return loss according to the target power, the first power, and the second power, and determine a state of the antenna according to the return loss.
In a fourth aspect, there is provided an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any of the preceding claims when executing the computer program.
In a fifth aspect, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the method of any of the preceding claims.
The invention has the positive progress effects that:
the embodiment of the invention provides an efficient and rapid detection mode for states such as loosening and mismatching of an antenna, and the detection of the state of the antenna can be realized by detecting the power of a test signal transmitted by the antenna and the power of an echo signal corresponding to the test signal, so that the electronic equipment is not required to be disassembled, and the situation that the electronic equipment is damaged due to improper disassembly is avoided.
Drawings
Fig. 1 is a schematic structural diagram of an antenna status detection system according to an exemplary embodiment of the present invention;
fig. 2 is a schematic structural diagram of a coupler used in an antenna state detection system according to an exemplary embodiment of the present invention;
fig. 3 is a flowchart of an antenna state detection method according to an exemplary embodiment of the present invention;
fig. 4 is a flowchart of another method for detecting an antenna state according to an exemplary embodiment of the present invention;
fig. 5 is a schematic block diagram of an antenna status detection device according to an exemplary embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an exemplary embodiment of the present invention.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
Fig. 1 is a schematic structural diagram of an antenna status detection system according to an exemplary embodiment of the present invention, where the antenna status detection system is applied to an electronic device, and the electronic device may be, but is not limited to, a mobile phone, a computer, a tablet device, a notebook computer, a palm computer (PDA, personal Digital Assistants), a wearable device (such as smart glasses, smart watches, etc.). The antenna state detection system includes: a radio frequency front end device (Radio Frequency Front End, RFFE) 11, a radio frequency transceiver device 12 and a controller (not shown). The radio frequency front end device 11 is integrated with a Coupler (CPL) 111 and a radio frequency front end circuit 112. The radio frequency transceiver 12 integrates a Power Detector (Pdet) and a Transceiver (TRX). The transceiver TRX is connected to an antenna 13 through a radio frequency front-end device 11. The controller is connected to the coupler 111 and the power detector Pdet, respectively.
Fig. 2 is a schematic structural diagram of a coupler used in an antenna state detection system according to an exemplary embodiment of the present invention, and referring to fig. 2, the coupler includes a first main line port 1111, a second main line port 1112, a coupling port 1113, a main line 1114 and a sub line 1115. The first main line port 1111 of the coupler 111 is connected to the antenna 13, the second main line port 1112 of the coupler 111 is connected to the rf front-end circuit 112, and the coupling port 1113 of the coupler 111 is connected to the power detector Pdet.
The coupler 111 can divide the energy of the input signal into two paths according to the degree of coupling, and most of the energy (through signal) is output through the main line and a small of the energy (coupled signal) is output through the sub line. The degree of coupling is related to the distance between the main line and the sub line, and the smaller the pitch is, the larger the degree of coupling is, the larger the energy output from the main line is, and the smaller the energy output from the sub line is. By sampling the signal by the coupler and performing power detection, the loss of signal extraction can be reduced.
The controller is capable of controlling the coupler 111 to switch between the forward setting state and the reverse setting state. When the coupler 111 is in the forward setting state, the second main line port 1112 serves as an input port for signals, the coupler 111 couples the input signal acquired from the second main line port 1112 to the main line 1114 and the sub line 1115 in two paths, respectively, the main line 1114 outputs a through signal through the second main line port 1112, and the sub line 1115 outputs a coupled signal to the power detector Pdet through the coupling port 1113. When the coupler 111 is in the reverse setting state, the first main line port 1111 serves as an input port for signals, the coupler 111 couples the input signal acquired from the first main line port 1111 to the main line 1114 and the sub line 1115 in two paths, respectively, the main line 1114 outputs a through signal through the second main line port 1112, and the sub line 1115 outputs a coupled signal to the power detector Pdet through the coupling port 1113.
The working principle of the antenna state detection system is described in detail below with reference to fig. 1 and 2.
When detecting the state of the antenna, the controller controls the coupler 111 to be in a forward setting state, and sends a test signal to the coupler 111 through the transceiver TRX and the radio frequency front end circuit 112 to couple the test signal by the coupler 111, at this time, the second main line port 1112 is used as a signal input end of the coupler 111, the test signal is used as an input signal, the coupler 111 couples the test signal to obtain a through signal and a coupling signal, the through signal is emitted outwards through the antenna 13, and the coupling signal is output to the power detector Pdet to detect the first power of the test signal by the power detector Pdet.
When the transmission of the test signal is completed or the antenna receives the echo signal corresponding to the test signal, the controller controls the coupler 111 to be in a reverse setting state, so that the coupler 111 couples the echo signal received by the antenna, at this time, the first main line port 1111 is used as a signal input end of the coupler 111, the echo signal is used as an input signal, the coupler 111 couples the echo signal to obtain a through signal and a coupling signal, the through signal is received by the transceiver TRX through the radio frequency front end circuit 112, and the coupling signal is output to the power detector Pdet, so that the second power of the echo signal is detected by the power detector Pdet.
The controller determines a return loss of the antenna based on the first power and the second power and determines a state of the antenna based on the return loss. Specifically, if the return loss falls into the preset loss range, which indicates that the antenna has a loosening or mismatch problem, the controller determines that the state of the antenna is an abnormal state. If the return loss does not fall into the preset loss range, indicating that the antenna is normally used, determining that the state of the antenna is normal by the controller. Therefore, the detection of the antenna state can be realized through the detection of the power of the test signal and the echo signal without disassembling the electronic equipment.
The preset loss range is determined according to the device parameters of the electronic equipment, and the electronic equipment with different models has different preset loss ranges.
In the embodiment of the invention, the radio frequency front-end device and the radio frequency transceiver have the function of receiving and transmitting signals, the antenna state detection is realized by means of the radio frequency front-end device and the radio frequency transceiver with high integration level, the structure of the radio frequency front-end device and the radio frequency transceiver is not required to be improved, extra cost is not required, and the utilization rate of the radio frequency front-end device and the radio frequency transceiver is also improved.
In one embodiment, the controller also generates an alert prompt if the status of the antenna is determined to be abnormal. For example, in an engineering field test scenario, if the state of the antenna is determined to be an abnormal state, the controller generates an alarm prompt to prompt the tester that the current antenna state is likely to be in an abnormal state due to loosening of the antenna, so as to avoid the tester from taking an invalid test result as test reference data; in the engineering development scene, if the state of the antenna is determined to be an abnormal state, the controller generates an alarm prompt to prompt a developer that the current antenna state is the abnormal state, most likely caused by antenna mismatch, and prompts the developer to replace an antenna matched with the feeder line so as to solve the problem of antenna mismatch; in the use scene, if the state of the antenna is determined to be an abnormal state, the controller generates an alarm prompt to prompt a user that the current antenna state is likely to be in the abnormal state due to the loosening of the antenna, so as to prompt the user to overhaul the electronic equipment as soon as possible, and avoid the fault important telephone, information and the like caused by the loosening of the antenna.
In one embodiment, the difference between the first power and the second power is determined as the return loss.
In one embodiment, the ratio of the first power to the second power is determined as the return loss.
In one embodiment, when transmitting the test signal, the controller controls the antenna to transmit the test signal at the target power, and when determining the state of the antenna, the controller uses the target power as a parameter for determining the state of the antenna, that is, the controller determines the state of the antenna according to the target power, the first power and the second power. The target power may be the maximum transmission power of the electronic device, i.e. the electronic device transmits the test signal at the maximum power. The test signal is transmitted with the maximum power, so that the coupling signal output by the coupler to the power detector is not too small, and the power of the test signal and the power of the echo signal can be effectively and accurately detected. The frequency of the test signal is the LTE (Long Term Evolution ) band supported by the electronic device.
In one example, the controller determines a first difference between the target power and the first power and a second difference between the first power and the second power, and determines the return loss based on the first difference and the second difference. Specifically, the sum of the first difference and the second difference may be, but is not limited to, determined as the return loss; or setting weights for the first difference and the second difference, and determining a weighted average of the first difference and the second difference as the return loss. The weights of the first difference and the second difference can be set according to actual requirements.
In one example, the controller determines a first ratio of the target power to the first power and a second ratio of the first power to the second power, and determines the return loss based on the first ratio and the second ratio. Specifically, the sum of the first ratio and the second ratio may be, but is not limited to, determined as the return loss; or setting weights for the first ratio and the second ratio, and determining a weighted average of the first ratio and the second ratio as the return loss. The weights of the first ratio and the second ratio can be set according to actual requirements.
It should be noted that, the controller in any of the above embodiments may be a CPU of the electronic device, that is, the CPU of the electronic device implements the function of detecting the antenna state implemented by the controller; the controller in any of the above embodiments may be another controller, and the function of detecting the antenna state is implemented by the another controller.
Fig. 3 is a flowchart of an antenna state detection method according to an exemplary embodiment of the present invention, which is applied to an electronic device, and the antenna state detection method is implemented by using the antenna state detection system according to any one of the foregoing embodiments. Referring to fig. 3, the antenna state detection method includes:
in step 301, in the process of transmitting a test signal through an antenna, a first power of the test signal is determined.
With reference to the above description, the control coupler is capable of switching between the forward setting state and the reverse setting state, and when determining the power of the test signal, the control coupler is in the forward setting state, so that the coupler couples the test signal, and outputs the coupled test signal to the power detector for power detection, so as to determine the first power of the test signal according to the output result of the power detector.
When the second power of the echo signal is determined, the coupler is controlled to be in a reverse setting state so that the echo signal is coupled by the coupler, and the coupled echo signal is output to the power detector for power detection; and then determining the second power of the echo signal according to the output result of the power detector.
In one embodiment, the difference between the first power and the second power is determined as the return loss.
In one embodiment, the ratio of the first power to the second power is determined as the return loss.
In one embodiment, the state of the antenna is determined to be an abnormal state in the case where the return loss falls within a preset loss range.
If the return loss falls into the preset loss range, which indicates that the antenna has loosening or mismatch problems, the controller determines that the state of the antenna is abnormal. If the return loss does not fall into the preset loss range, indicating that the antenna is normally used, determining that the state of the antenna is normal by the controller. Therefore, the detection of the antenna state can be realized through the detection of the power of the test signal and the echo signal without disassembling the electronic equipment.
The preset loss range is determined according to the device parameters of the electronic equipment, and the electronic equipment with different models has different preset loss ranges.
In one embodiment, if the state of the antenna is determined to be abnormal, the method further includes the step of generating an alarm prompt.
Fig. 4 is a flowchart of another method for detecting an antenna state according to an exemplary embodiment of the present invention, which is applied to an electronic device, and the method for detecting an antenna state is implemented by using the antenna state detection system provided in any of the foregoing embodiments. Referring to fig. 4, the antenna state detection method includes:
The target power may be the maximum transmission power of the electronic device, i.e. the electronic device transmits the test signal at the maximum power. The test signal is transmitted with the maximum power, so that the coupling signal output by the coupler to the power detector is not too small, and the power of the test signal and the power of the echo signal can be effectively and accurately detected. The frequency of the test signal is the LTE (Long Term Evolution ) band supported by the electronic device.
In step 401, during the process of transmitting a test signal through an antenna, a first power of the test signal is determined.
With reference to the above description, the control coupler is capable of switching between the forward setting state and the reverse setting state, and when determining the power of the test signal, the control coupler is in the forward setting state, so that the coupler couples the test signal, and outputs the coupled test signal to the power detector for power detection, so as to determine the first power of the test signal according to the output result of the power detector.
When the second power of the echo signal is determined, the coupler is controlled to be in a reverse setting state so that the echo signal is coupled by the coupler, and the coupled echo signal is output to the power detector for power detection; and then determining the second power of the echo signal according to the output result of the power detector.
In one embodiment, the controller determines a first difference between the target power and the first power and a second difference between the first power and the second power, and determines the return loss based on the first difference and the second difference. Specifically, the sum of the first difference and the second difference may be, but is not limited to, determined as the return loss; or setting weights for the first difference and the second difference, and determining a weighted average of the first difference and the second difference as the return loss. The weights of the first difference and the second difference can be set according to actual requirements.
In one embodiment, the controller determines a first ratio of the target power to the first power and a second ratio of the first power to the second power, and determines the return loss based on the first ratio and the second ratio. Specifically, the sum of the first ratio and the second ratio may be, but is not limited to, determined as the return loss; or setting weights for the first ratio and the second ratio, and determining a weighted average of the first ratio and the second ratio as the return loss. The weights of the first ratio and the second ratio can be set according to actual requirements.
In one embodiment, the state of the antenna is determined to be an abnormal state in the case where the return loss falls within a preset loss range.
If the return loss falls into the preset loss range, which indicates that the antenna has loosening or mismatch problems, the controller determines that the state of the antenna is abnormal. If the return loss does not fall into the preset loss range, indicating that the antenna is normally used, determining that the state of the antenna is normal by the controller. Therefore, the detection of the antenna state is realized through the detection of the power of the test signal and the echo signal, and the state of the antenna can be determined without disassembling the electronic equipment.
The preset loss range is determined according to the device parameters of the electronic equipment, and the electronic equipment with different models has different preset loss ranges.
In one embodiment, if the state of the antenna is determined to be abnormal, the method further includes the step of generating an alarm prompt.
The invention also provides an embodiment of the antenna state detection device corresponding to the embodiment of the antenna state detection method.
Fig. 5 is a schematic block diagram of an antenna status detection device according to an exemplary embodiment of the present invention, where the device is applied to an electronic apparatus, and the electronic apparatus includes an antenna; the antenna state detection device includes:
a first determining module 51, configured to determine a first power of a test signal during a process of transmitting the test signal through the antenna;
a second determining module 52, configured to determine a second power of the echo signal if the antenna receives the echo signal corresponding to the test signal;
a third determining module 53, configured to determine a return loss according to the first power and the second power, and determine a state of the antenna according to the return loss.
Optionally, the apparatus comprises:
a transmitting module for transmitting the test signal at a target power;
in determining the echo loss, the first determining module 51 includes:
and determining the return loss according to the target power, the first power and the second power.
Optionally, the electronic device includes a radio frequency front end device and a radio frequency transceiver, the radio frequency front end device is integrated with a coupler, the radio frequency transceiver is integrated with a power detector, one end of the coupler is connected with the antenna, and the other end of the coupler is connected with the power detector;
the first determining module includes:
the control unit is used for controlling the coupler to be in a forward setting state so as to couple the test signal by the coupler and output the coupled test signal to the power detector;
and the determining unit is used for determining the first power of the test signal according to the output result of the power detector.
Optionally, the second determining module includes:
the control unit is used for controlling the coupler to be in a reverse setting state so as to couple the echo signals by the coupler and outputting the coupled echo signals to the power detector;
and the determining unit is used for determining the second power of the echo signal according to the output result of the power detector.
Optionally, the third determining module is configured to:
determining a difference between the first power and the second power as the return loss;
alternatively, a ratio of the first power to the second power is determined as the return loss.
Optionally, the third determining module is configured to:
determining a first difference between the target power and the first power and a second difference between the first power and the second power, and determining the return loss according to the first difference and the second difference;
or determining a first ratio of the target power to the first power and a second ratio of the first power to the second power, and determining the return loss according to the first ratio and the second ratio.
Optionally, the third determining module is configured to:
under the condition that the return loss falls within a preset loss range, determining the state of the antenna to be an abnormal state;
and under the condition that the return loss does not fall within a preset loss range, determining that the state of the antenna is a normal state.
Optionally, the apparatus further comprises:
and the alarm module is used for generating an alarm prompt under the condition that the state of the antenna is determined to be an abnormal state.
For the device embodiments, reference is made to the description of the method embodiments for the relevant points, since they essentially correspond to the method embodiments. The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purposes of the present invention. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Fig. 6 is a schematic diagram of an electronic device, showing an exemplary electronic device 60 suitable for use in implementing embodiments of the present invention. The electronic device 60 shown in fig. 6 is merely an example and should not be construed as limiting the functionality and scope of use of embodiments of the present invention.
As shown in fig. 6, the electronic device 60 may be embodied in the form of a general purpose computing device, which may be a server device, for example. Components of electronic device 60 may include, but are not limited to: the at least one processor 61, the at least one memory 62, a bus 63 connecting the different system components, including the memory 62 and the processor 61.
The bus 63 includes a data bus, an address bus, and a control bus.
The processor 61 executes various functional applications and data processing, such as the methods provided in any of the embodiments described above, by running a computer program stored in the memory 62.
The electronic device 60 may also communicate with one or more external devices 64 (e.g., keyboard, pointing device, etc.). Such communication may occur through an input/output (I/O) interface 65. Also, model-generated electronic device 60 may also communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the internet via network adapter 66. As shown, the network adapter 66 communicates with other modules of the model-generated electronic device 60 via the bus 63. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with model-generating electronic device 60, including, but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, data backup storage systems, and the like.
It should be noted that although several units/modules or sub-units/modules of an electronic device are mentioned in the above detailed description, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more units/modules described above may be embodied in one unit/module in accordance with embodiments of the present invention. Conversely, the features and functions of one unit/module described above may be further divided into ones that are embodied by a plurality of units/modules.
The embodiment of the present invention also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method provided by any of the embodiments described above.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (11)
1. An antenna state detection method is characterized by being applied to electronic equipment, wherein the electronic equipment comprises an antenna; the antenna state detection method comprises the following steps:
determining a first power of a test signal in the process of transmitting the test signal through the antenna;
determining a second power of the echo signal in case the antenna receives an echo signal corresponding to the test signal;
determining return loss according to the first power and the second power;
determining the state of the antenna according to the return loss;
transmitting a test signal, comprising:
transmitting the test signal at a target power;
determining return loss from the first power and the second power, comprising:
determining return loss according to the target power, the first power and the second power;
the target power includes a maximum transmit power of the electronic device.
2. The antenna state detection method according to claim 1, wherein the electronic device includes a radio frequency front end device and a radio frequency transceiver device, the radio frequency front end device is integrated with a coupler, the radio frequency transceiver device is integrated with a power detector, one end of the coupler is connected with the antenna, and the other end of the coupler is connected with the power detector;
determining a first power of the test signal, comprising:
controlling the coupler to be in a forward setting state so as to couple the test signal by the coupler and output the coupled test signal to the power detector;
and determining the first power of the test signal according to the output result of the power detector.
3. The method of antenna state detection according to claim 2, wherein determining the second power of the echo signal comprises:
controlling the coupler to be in a reverse setting state so as to couple the echo signals by the coupler and outputting the coupled echo signals to a power detector;
and determining the second power of the echo signal according to the output result of the power detector.
4. The antenna state detection method of claim 1, wherein determining return loss from the first power and the second power comprises:
determining a difference between the first power and the second power as the return loss;
alternatively, a ratio of the first power to the second power is determined as the return loss.
5. The antenna state detection method according to claim 1, wherein determining return loss from the target power, the first power, and the second power comprises:
determining a first difference between the target power and the first power and a second difference between the first power and the second power, and determining the return loss according to the first difference and the second difference;
or determining a first ratio of the target power to the first power and a second ratio of the first power to the second power, and determining the return loss according to the first ratio and the second ratio.
6. The antenna state detection method according to claim 1, wherein determining the state of the antenna from the return loss comprises:
under the condition that the return loss falls within a preset loss range, determining the state of the antenna to be an abnormal state;
and under the condition that the return loss does not fall within a preset loss range, determining that the state of the antenna is a normal state.
7. The antenna state detection method according to claim 1, characterized in that the method further comprises:
and generating an alarm prompt under the condition that the state of the antenna is determined to be an abnormal state.
8. An antenna state detection device is characterized by being applied to electronic equipment, wherein the electronic equipment comprises an antenna; the antenna state detection device includes:
the first determining module is used for determining first power of the test signal in the process of transmitting the test signal through the antenna;
a second determining module, configured to determine a second power of the echo signal if the antenna receives the echo signal corresponding to the test signal;
a third determining module, configured to determine a return loss according to the first power and the second power, and determine a state of the antenna according to the return loss;
the device comprises:
a transmitting module for transmitting the test signal at a target power;
in determining the echo loss, the first determining module includes:
determining return loss according to the target power, the first power and the second power;
the target power includes a maximum transmit power of the electronic device.
9. An antenna state detection system is characterized by being applied to an electronic device comprising an antenna; the antenna state detection system includes: the device comprises a controller, a radio frequency front-end device and a radio frequency transceiver, wherein the radio frequency front-end device is integrated with a coupler, the radio frequency transceiver is integrated with a power detector, one end of the coupler is connected with the antenna, and the other end of the coupler is connected with the power detector;
the controller is used for controlling the antenna to emit a test signal with target power, controlling the coupler to be in a forward setting state in the process of emitting the test signal, and controlling the coupler to be in a reverse setting state under the condition that the antenna receives an echo signal corresponding to the test signal;
a coupler for coupling the test signal and outputting the coupled test signal to a power detector in the forward setting state, and coupling the echo signal and outputting the coupled echo signal to a power detector in the reverse setting state;
the power detector is used for detecting first power of the test signal and second power of the echo signal;
the controller is further configured to determine a return loss according to the target power, the first power, and the second power, and determine a state of the antenna according to the return loss;
the target power includes a maximum transmit power of the electronic device.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any one of claims 1 to 7 when executing the computer program.
11. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method of any of claims 1 to 7.
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| EP2755337A4 (en) * | 2011-09-08 | 2015-04-22 | China Mobile Group Design Inst | Monitoring method and system and integrated monitoring device for antenna oscillator of base station |
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