CN109526054B - Wireless interference source detection system and detection method - Google Patents
Wireless interference source detection system and detection method Download PDFInfo
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- CN109526054B CN109526054B CN201811296574.2A CN201811296574A CN109526054B CN 109526054 B CN109526054 B CN 109526054B CN 201811296574 A CN201811296574 A CN 201811296574A CN 109526054 B CN109526054 B CN 109526054B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
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Abstract
The embodiment of the application provides a wireless interference source detection system and method, wherein, wireless interference source detection system includes the equipment to be measured, accompanies equipment, a display device, programmable attenuator, antenna and noise analyzer, programmable attenuator one end with accompany equipment connection, the other end with the equipment to be measured connects, antenna one end with noise analyzer connects, the other end with the equipment to be measured connects, the equipment to be measured with a display device connects, a display device is used for showing the carrier to noise ratio of the equipment to be measured, noise analyzer is used for showing the signal intensity of the equipment to be measured. The embodiment of the application can improve the speed of finding the wireless interference source.
Description
Technical Field
The present invention relates to the field of antenna signal transmission technologies, and in particular, to a wireless interference source detection system and a detection method.
Background
With the development of society, electronic devices have been widely used in the life of people.
With the increasing of the functional modules of wireless products in electronic equipment, the mutual interference between the modules seriously restricts the wireless performance of the products, so that the avoidance of the interference problem and the solution of the interference problem play more and more important roles in the development process of the wireless products at present.
Disclosure of Invention
The embodiment of the application provides a wireless interference source detection system and a detection method, which can find an interference source of a wireless device at a higher speed.
A wireless interferer detection system, comprising: the device to be tested, a first display device of the accompanying equipment, a programmable attenuator, an antenna and a noise analyzer, wherein one end of the programmable attenuator is connected with the accompanying equipment, the other end of the programmable attenuator is connected with the device to be tested, one end of the antenna is connected with the noise analyzer, the other end of the antenna is connected with the device to be tested, the device to be tested is connected with the first display device, the first display device is used for displaying the carrier-to-noise ratio of the device to be tested, and the noise analyzer is used for displaying the signal intensity of the device to be tested.
The embodiment of the application also provides a wireless interference source detection method, which comprises the following steps:
connecting the equipment to be tested and the accompanying equipment through a programmable attenuator;
connecting the equipment to be tested with a first display device;
connecting one end of an antenna with a noise analyzer, and connecting the other end of the antenna with the equipment to be tested;
and detecting the equipment to be tested by using an antenna to acquire the carrier-to-noise ratio displayed by the first display device and the signal strength of the noise analyzer, and determining the position of the wireless interference source of the equipment to be tested according to the carrier-to-noise ratio and the signal strength.
The embodiment of the application provides a wireless interference source detection system and a detection method. In the embodiment of the application, the equipment to be detected, the accompanying equipment, the first display device, the programmable attenuator, the antenna and the noise analyzer form a detection system, the detection system can simulate the actual use scene of a user, the specific position of the interference source is located by observing the change of the carrier-to-noise ratio and the signal intensity of the noise analyzer, and the accuracy and the efficiency of locating the position of the interference source are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a first block diagram of a system for detecting a wireless interference source according to an embodiment of the present disclosure.
Fig. 2 is a second block diagram of a system for detecting a wireless interference source according to an embodiment of the present invention.
Fig. 3 is a third block diagram of a system for detecting a wireless interference source according to an embodiment of the present application.
Fig. 4 is a flowchart illustrating a method for detecting a wireless interference source according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the present application provides a wireless interference source detection system 100 and a detection method, which are described in detail below in the following.
Wireless products usually include many wireless function modules, and as wireless products need more and more functions, the wireless function modules are likely to interfere with each other, thereby affecting the wireless performance of the wireless products. How to solve the interference problem among wireless functional modules is the key point to find a wireless interference source in a product.
In order to find a wireless interference source in a product, in the related art, a method for detecting a wireless interference source is provided, in which a location of a wireless interference source that may exist in a provided wireless product is directly tested by the spectrometer 101, and the location of the interference source is determined according to a signal strength on the spectrometer 101. Alternatively, it is also possible to observe whether the interference introduced by the antenna 50 of the wireless product is present in the operating state by directly connecting the antenna 50 of the wireless product to the spectrometer 101.
In the method, the position of the wireless interference source is judged by only one-dimensional judgment standard, false judgment can be caused for some suspected interference signals with high signal strength but signals which do not influence the normal wireless work of an actual product, and meanwhile, the interference source which has a large influence on user experience cannot be effectively identified, so that the efficiency of searching the interference source is reduced.
Referring to fig. 1, a wireless interference source detection system 100 is provided according to an embodiment of the present invention. The wireless interference source detection system 100 comprises a device under test 10, a first display device 30 of a companion device 20, a programmable attenuator 40, an antenna 50 and a noise analyzer 60. One end of the programmable attenuator 40 is connected with the accompanying device 20, and the other end is connected with the device under test 10. The antenna 50 has one end connected to the noise analyzer 60 and the other end connected to the device under test 10. The device under test 10 is connected to the first display device 30. The first display device 30 is used for displaying the carrier-to-noise ratio of the device under test 10. The noise analyzer 60 is used to display the signal strength of the device under test 10.
The device under test 10, the accompanying device 20, the programmable attenuator 40, the antenna 50 and the noise analyzer 60 may be connected by a radio frequency coaxial line. The first display device 30 is connected with the accompanying device 20 through a network cable. It is understood that the connection manner between the device under test 10, the programmable attenuator 40 of the companion device 20, the antenna 50, and the noise analyzer 60 is not limited thereto. Therefore, it is not described in detail.
It should be noted that the device under test 10 may be an electronic device, and the electronic device may be a smart phone, a tablet computer, or other devices, and may also be a game device, an AR (Augmented Reality) device, an automobile, a data storage device, an audio playing device, a video playing device, a notebook, a desktop computing device, or other devices.
The nature of the wireless interference is that the interference signal and the normal signal are mutually superposed, so that the carrier-to-noise ratio of the signal is changed, and the receiver cannot demodulate normally. Meanwhile, the influence of the interference on the user experience of the wireless product in different rate modes is different. In the embodiment of the application, the programmable attenuator 40 is arranged between the device to be tested 10 and the accompanying device 20, the programmable attenuator 40 is controlled, the wireless product works in different rate modes, and the wireless throughput of the wireless product is different in the different rate modes, so that an actual user use scene is simulated. And identifying the interference under different rate modes, and finding out an interference source really influencing user experience. Furthermore, the interference source of the wireless product is detected by the antenna 50, a possible space radiation interference signal is introduced into the noise analyzer 60, the noise analyzer 60 is used for observing the intensity of the noise signal, when the wireless throughput and the carrier-to-noise ratio are obviously reduced in a rate mode commonly used by a certain user, and meanwhile, when the noise signal is increased in the noise analyzer 60, the position can be judged as the position of the interference source, the user experience is greatly influenced, the interference source which has a large influence on the actual working state of the product can be quickly detected by adopting the scheme, the interference source which has a large influence on the user experience is effectively identified, and the solution and the improvement are pertinently carried out.
The wireless interference source detecting system 100 further includes a first power divider 70, a second power divider 80, and a second display device 90. The noise analyzer 60 and the antenna 50 are connected to the first power divider 70, and the first power divider 70 is connected to the second power divider 80. One end of the second power divider 80 is connected to the programmable attenuator 40, the other end is connected to the accessory device 20, and the second display device 90 is connected to the accessory device 20.
The first display device 30 and the second display device 90 may be computers, and the second display device 90 may be used to control the attenuation amount of the programmable attenuator 40. Of course, the first display device 30 and the second display device 90 are not limited thereto, and are not limited thereto.
Referring to fig. 2, the wireless interference source detecting system 100 further includes a first shielding device 102 and a second shielding device 103. The second shielding means 103 is arranged inside the first shielding means 102. The first display device 30, the device under test 10, the antenna 50, the first power divider 70, the second power divider 80, and the noise analyzer 60 are disposed in the first shielding device 102. The second display device 90, the companion device 20 and the programmable attenuator 40 are placed in the second shielding device 103.
It should be noted that the first shielding device 102 has a large volume, such as a shielding room. The volume of the second shielding means 103 is small in relation to the volume of the first shielding means 102. Such as a shielded box. The second shielding means 103 may be placed in the first shielding means 102.
The device to be tested 10 is placed in the first shielding device 102, and the accompanying device 20 is placed in the second shielding device 103, so that signal leakage and influence on judgment can be avoided.
Wherein the antenna 50 may be a loop antenna 50. It should be noted that the loop antenna 50 is generally small and suitable for detecting electronic devices with small volume, such as mobile phones. The use of the loop antenna 50 allows the position of detection to be more accurate. Meanwhile, the loop antenna 50 and the noise analyzer 60 are connected to the first power divider 70, the first power divider 70 is connected to the second power divider 80, one end of the second power divider 80 is connected to the programmable attenuator 40, the other end of the second power divider is connected to the accessory device 20, and the second display device 90 is connected to the accessory device 20.
The annular coil introduces a wireless signal instrument which possibly has a space radiation interference signal in a product and accompanies the equipment 20 into the equipment 10 to be tested, and the accompanied equipment 20 and the equipment 10 to be tested operate simultaneously, so that the wireless throughput of the accompanied equipment 20 and the equipment 10 to be tested is obtained, the actual working state of the product is simulated, the programmable attenuator 40 is controlled, the wireless product works in different speed modes, and the wireless throughput is different under the different speed modes. Meanwhile, the loop antenna 50 is used for detecting an interference source of a product, a possible space radiation interference signal is introduced into the noise analyzer 60 through the power divider, the noise analyzer 60 is used for observing the energy of the noise signal, when the wireless throughput and the carrier-to-noise ratio are obviously reduced under a certain rate mode commonly used by a user and the noise signal is increased in the noise analyzer 60, the position can be judged as the position of the interference source, the influence on the user experience is huge, the interference source which has a large influence on the actual working state of the product can be quickly detected by adopting the scheme, the interference source which has a large influence on the user experience is effectively identified, and the solution and the improvement are pertinently carried out.
Referring to fig. 3, the wireless interference source detecting system 100 further includes a spectrometer 101, where the spectrometer 101 is connected to the device under test 10, and the spectrometer 101 is configured to detect a frequency point and an intensity of the interference source. When the influence of the interference on the user experience in the rate mode is judged, and after the position of the interference source is detected, the frequency point and the intensity of the interference source at the position are observed by the frequency spectrograph 101, so that the subsequent interference problem is solved.
In the embodiment of the present application, a wireless interference source detection system 100 is provided. The wireless interference source detection system 100 comprises a device under test 10, a first display device 30 of a companion device 20, a programmable attenuator 40, an antenna 50 and a noise analyzer 60. One end of the programmable attenuator 40 is connected with the accompanying device 20, and the other end is connected with the device under test 10. The antenna 50 has one end connected to the noise analyzer 60 and the other end connected to the device under test 10. The device under test 10 is connected to the first display device 30. The first display device 30 is used for displaying the carrier-to-noise ratio of the device under test 10. The noise analyzer 60 is used to display the signal strength of the device under test 10. The carrier-to-noise ratio of the product in an actual working state is introduced, the wireless speed of the device to be tested 10 is changed by using the programmable attenuator 40, an actual user use scene is simulated, meanwhile, the noise analyzer 60 is introduced, the specific position of the interference source is positioned by observing two indexes of the change of the carrier-to-noise ratio and the signal intensity of the noise analyzer 60, and the accuracy and the efficiency of positioning the position of the interference source are improved.
Referring to fig. 4, an embodiment of the present invention further provides a method for detecting a wireless interference source, including the following steps:
101. the device under test 10 and the companion device 20 are connected through a programmable attenuator 40.
In the embodiment of the application, the programmable attenuator 40 is arranged between the device to be tested 10 and the accompanying device 20, the programmable attenuator 40 is controlled, the wireless product works in different rate modes, and the wireless throughput of the wireless product is different in the different rate modes, so that an actual user use scene is simulated. And identifying the interference under different rate modes, and finding out an interference source really influencing user experience.
102. The device under test 10 is connected to a first display apparatus 30.
It should be noted that the first display device 30 is used for displaying the carrier-to-noise ratio of the device under test 10. By observing whether or not the carrier-to-noise ratio is suddenly lowered in the first display device 30, it is possible to determine that the position is the position of the interference source.
103. The antenna 50 is connected to the noise analyzer 60 at one end and to the device under test 10 at the other end.
It should be noted that, the antenna 50 is used to introduce the spatial radiation interference signal possibly existing in the product and the wireless signal instrument of the accessory device 20 into the device under test 10, so that the accessory device 20 and the device under test 10 run wireless throughput, and the actual working state of the product is simulated.
104. The antenna 50 is used to detect the device under test 10 to obtain the carrier-to-noise ratio displayed by the first display device 30 and the signal strength of the noise analyzer 60, and the position of the wireless interference source of the device under test 10 is determined according to the carrier-to-noise ratio and the signal strength.
In the application, the carrier-to-noise ratio of the product in the actual working state is introduced, the wireless speed of the equipment to be tested 10 is changed by utilizing the programmable attenuator 40, the actual user use scene is simulated, the noise analyzer 60 is introduced simultaneously, the specific position of the interference source is positioned by observing the change of the carrier-to-noise ratio and two indexes of the signal intensity of the noise analyzer 60, and the accuracy and the efficiency of positioning the position of the interference source are improved.
105. The noise analyzer 60 and the antenna 50 are connected to the first power divider 70, and the first power divider 70 is connected to the second power divider 80.
106. One end of the second power divider 80 is connected to the programmable attenuator 40, and the other end is connected to the device under test 10.
107. The first display device 30, the device under test 10, the antenna 50, the first power divider 70, the second power divider 80, and the noise analyzer 60 are placed in the first shielding device 102.
108. The second display device 90, the companion device 20 and the programmable attenuator 40 house are placed within a second shielding device 103.
It should be noted that the first shielding device 102 has a large volume, such as a shielding room. The volume of the second shielding means 103 is small in relation to the volume of the first shielding means 102. Such as a shielded box. The second shielding means 103 may be placed in the first shielding means 102.
The device to be tested 10 is placed in the first shielding device 102, and the accompanying device 20 is placed in the second shielding device 103, so that signal leakage and influence on judgment can be avoided.
109. And connecting the equipment to be tested 10 with a frequency spectrograph 101, and detecting the frequency point and the intensity of the interference source by using the frequency spectrograph 101 when detecting the position of the interference source of the equipment to be tested 10.
In the embodiment of the application, when the influence of the interference on the user experience in the rate mode is judged, and after the position of the interference source is detected, the frequency point and the intensity of the interference source at the position are observed by using the frequency spectrograph 101, so that the subsequent interference problem is solved
The above describes the system and method for detecting a wireless interference source according to the embodiment of the present application in detail. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. A wireless interferer detection system, comprising: the device comprises equipment to be tested, accompanying equipment, a first display device, a programmable attenuator, an antenna, a noise analyzer and a power divider, wherein one end of the programmable attenuator is connected with the accompanying equipment, the other end of the programmable attenuator is connected with the equipment to be tested, one end of the antenna is connected with the noise analyzer, the other end of the antenna is connected with the equipment to be tested, the equipment to be tested is connected with the first display device, the first display device is used for displaying the carrier-to-noise ratio of the equipment to be tested, and the noise analyzer is used for displaying the signal intensity of the equipment to be tested; wherein the antenna is a loop antenna;
controlling the programmable attenuator to enable the equipment to be tested to work in different rate modes, wherein the wireless throughputs of the equipment to be tested are different in the different rate modes, so that a use scene is simulated; detecting an interference source of equipment to be tested by using an antenna, introducing existing space radiation interference signals into a noise analyzer, observing the intensity of the noise signals by using the noise analyzer, and judging the position as the position of the interference source when the wireless throughput and the carrier-to-noise ratio are reduced in a common rate mode and the noise signal is increased in the noise analyzer; the method specifically comprises the following steps: the loop antenna leads a space radiation interference signal in the equipment to be tested and a noise analyzer of the accompanying equipment into the equipment to be tested, and the accompanying equipment and the equipment to be tested run simultaneously, so that the wireless throughput of the accompanying equipment and the equipment to be tested is obtained, the actual working state of the equipment to be tested is simulated, the programmable attenuator is controlled, the equipment to be tested is made to work in different rate modes, and the wireless throughput is different under the different rate modes; simultaneously, an interference source of the equipment to be detected is detected by the loop antenna, existing space radiation interference signals are introduced into the noise analyzer through the power divider, the noise analyzer is used for observing the energy of the noise signals, when the wireless throughput and the carrier-to-noise ratio are reduced in a common rate mode, and meanwhile, when the noise signals are increased in the noise analyzer, the position is judged as the position of the interference source.
2. The system according to claim 1, wherein the power divider includes a first power divider, a second power divider, and a second display device, the noise analyzer and the antenna are connected to the first power divider, the first power divider is connected to the second power divider, one end of the second power divider is connected to the programmable attenuator, the other end of the second power divider is connected to the device under test, and the second display device is connected to the accessory device.
3. The system according to claim 2, further comprising a first shielding device and a second shielding device, wherein the second shielding device is disposed in the first shielding device, the first shielding device has the first display device, the device under test, the antenna, the first power divider, the second power divider, and the noise analyzer disposed therein, and the second shielding device has the second display device, the accompanying device, and the programmable attenuator disposed therein.
4. The system according to claim 3, further comprising a spectrometer, wherein the spectrometer is connected to the device under test, and the spectrometer is configured to detect the frequency point and the intensity of the wireless interference source.
5. A wireless interference source detection method is characterized by comprising the following steps:
connecting the equipment to be tested and the accompanying equipment through a programmable attenuator;
connecting the equipment to be tested with a first display device;
connecting one end of an antenna with a noise analyzer, and connecting the other end of the antenna with the equipment to be tested; wherein the antenna is a loop antenna;
detecting the equipment to be tested by using an antenna to acquire the carrier-to-noise ratio displayed by the first display device and the signal strength of the noise analyzer, and determining the position of the wireless interference source of the equipment to be tested according to the carrier-to-noise ratio and the signal strength, wherein the method comprises the following steps: controlling the programmable attenuator to enable the equipment to be tested to work in different rate modes, wherein the wireless throughputs of the equipment to be tested are different in the different rate modes, so that a use scene is simulated; detecting an interference source of equipment to be tested by using an antenna, introducing existing space radiation interference signals into a noise analyzer, observing the intensity of the noise signals by using the noise analyzer, and judging the position as the position of the interference source when the wireless throughput and the carrier-to-noise ratio are reduced in a common rate mode and the noise signal is increased in the noise analyzer; the method specifically comprises the following steps: the loop antenna leads a space radiation interference signal in the equipment to be tested and a noise analyzer of the accompanying equipment into the equipment to be tested, and the accompanying equipment and the equipment to be tested run simultaneously, so that the wireless throughput of the accompanying equipment and the equipment to be tested is obtained, the actual working state of the equipment to be tested is simulated, the programmable attenuator is controlled, the equipment to be tested is made to work in different rate modes, and the wireless throughput is different under the different rate modes; simultaneously, an interference source of the equipment to be detected is detected by the loop antenna, existing space radiation interference signals are introduced into the noise analyzer through the power divider, the noise analyzer is used for observing the energy of the noise signals, when the wireless throughput and the carrier-to-noise ratio are reduced in a common rate mode, and meanwhile, when the noise signals are increased in the noise analyzer, the position is judged as the position of the interference source.
6. The method for detecting a wireless interference source according to claim 5, further comprising the steps of:
connecting a noise analyzer with the antenna and a first power divider, and connecting the first power divider and a second power divider;
and connecting one end of the second power divider with the programmable attenuator and connecting the other end of the second power divider with the equipment to be tested.
7. The method of claim 6, further comprising the steps of:
the first display device, the equipment to be tested, the antenna, the first power divider, the second power divider and the noise analyzer house are arranged in a first shielding device;
placing the second display device, the accompanying device and the programmable attenuator in the second shielding device;
a second shielding means is disposed within the first shielding means.
8. The wireless interference source detection method according to claim 7,
and connecting the equipment to be detected with a frequency spectrograph, and detecting the frequency point and the intensity of the interference source by using the frequency spectrograph when the position of the interference source of the equipment to be detected is detected.
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| CN117728866A (en) * | 2023-05-31 | 2024-03-19 | 荣耀终端有限公司 | Antenna control method and electronic equipment |
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