CN110601773B - Radiation stray test method and device and test system - Google Patents
Radiation stray test method and device and test system Download PDFInfo
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Abstract
The present disclosure relates to the field of communications technologies, and in particular, to a radiation spurious test method, a radiation spurious test apparatus, a radiation spurious test system, a computer-readable medium, and an electronic device. The method comprises the following steps: controlling a reference signal source to transmit a calibration reference signal in a test environment to acquire space compensation data; controlling a testing machine to transmit a first radio frequency signal corresponding to a first testing state in the testing environment so as to obtain a first receiving signal; combining the first receiving signal and the space compensation data to obtain a first test signal of the tester in the first test state; and comparing the first test signal with a preset threshold value to obtain a first test result corresponding to the first state. The scheme disclosed by the invention can realize the rapid radiated stray test on the terminal equipment based on the near field coupling principle, reduce the test time consumption, and further cover more test machines to realize batch test.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a radiation spurious test method, a radiation spurious test apparatus, a radiation spurious test system, a computer-readable medium, and an electronic device.
Background
Radiation stray Emission (RES) test is an important test item for authentication of electronic devices such as IT products, AV products, home appliances, and wireless products.
The prior art mainly includes when carrying out the radiation stray test: conventional Far Field testing (DFF), tightening Far Field testing (IFF), and radiating near Field testing methods. However, the above-mentioned testing method has certain defects and shortcomings, for example, the conventional far-field testing method and the radiation near-field testing scheme both have long testing time consumption, and the test requires a large testing space, and is high in cost and only applicable to sampling detection, and the test cannot cover the defects of each machine. The method of the shrinking far-field test has the defects that multi-point test is needed, the time consumption of single test is long, and batch test of a production line cannot be realized.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The present disclosure is directed to a method, an apparatus, a system, a computer readable medium, and an electronic device for testing stray radiation, which can quickly perform a stray radiation test on a terminal device.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.
According to a first aspect of the present disclosure, there is provided a radiation spurs testing method, including:
controlling a reference signal source to transmit a calibration reference signal in a test environment to acquire space compensation data;
controlling a testing machine to transmit a first radio frequency signal corresponding to a first testing state in the testing environment so as to obtain a first receiving signal;
combining the first receiving signal and the space compensation data to obtain a first test signal of the tester in the first test state;
and comparing the first test signal with a preset threshold value to obtain a first test result corresponding to the first state.
According to a second aspect of the present disclosure, there is provided a radiated spurious test apparatus, comprising:
the compensation information acquisition module is used for controlling the reference signal source to transmit a calibration reference signal in a test environment so as to acquire space compensation data;
the first receiving signal acquiring module is used for controlling the testing machine to transmit a first radio frequency signal corresponding to a first testing state in the testing environment so as to acquire a first receiving signal;
a first test signal obtaining module, configured to combine the first received signal and the spatial compensation data to obtain a first test signal of the tester in the first test state;
and the first test result generation module is used for comparing the first test signal with a preset threshold value to obtain a first test result corresponding to the first state.
According to a third aspect of the present disclosure, there is provided a radiated spurious test system, comprising:
a test environment comprising: the test device comprises a shielding cavity, a plurality of coupling plates and a support plate for placing a test machine, wherein the shielding cavity is internally provided with the plurality of coupling plates;
a test assembly comprising: the filter is matched with the coupling plates in quantity and used for filtering the radio frequency signals collected by the coupling plates; the number of the amplifiers is matched with that of the filters, and the amplifiers are used for amplifying the signals output by the filters; the program control radio frequency switch is used for sending the amplified signal to the frequency spectrograph through a target channel; the frequency spectrograph is used for receiving and analyzing a signal to acquire power and frequency information of the signal;
a reference signal source for providing a calibration reference signal;
the main control unit is used for controlling the test machine to transmit the radio frequency signal in the test environment and controlling the reference signal source to transmit the calibration reference signal in the test environment; and calculating the test result of the tester.
According to a fourth aspect of the present disclosure, a computer-readable medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, is adapted to carry out the above-mentioned method of radiated spurious testing.
According to a fifth aspect of the present disclosure, there is provided an electronic device comprising:
one or more processors;
a storage device to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the above-described radiated spurious test method.
In a radiation spurs test method provided by an embodiment of the present disclosure, spatial compensation data is acquired by first transmitting a calibration reference signal in a test environment; then, in a test environment, enabling a test machine to transmit a first radio frequency signal with certain power and frequency corresponding to a first test state to acquire a first receiving signal; therefore, the radiation stray signal of the testing machine in the first testing state can be accurately acquired according to the first receiving signal and the space compensation data, and the stray signal is judged. Therefore, the radiation stray test can be rapidly carried out on the terminal equipment based on the near field coupling principle, the test time is reduced, more test machines can be covered, and batch test is realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
FIG. 1 schematically illustrates a schematic diagram of a radiation straggle test method in an exemplary embodiment of the present disclosure;
FIG. 2 schematically illustrates a method of testing different test states of a testing machine in an exemplary embodiment of the disclosure;
FIG. 3 schematically illustrates a schematic diagram of a radiation stray testing apparatus according to an exemplary embodiment of the present disclosure;
FIG. 4 schematically illustrates a component schematic of a radiated spurious test system in an exemplary embodiment of the present disclosure;
FIG. 5 schematically illustrates a schematic diagram of a test assembly and a main control unit according to an exemplary embodiment of the disclosure;
fig. 6 schematically shows a structural diagram of a computer system of an electronic device in an exemplary embodiment of the disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
Radiation stray interference (RSE) refers to the emission outside the operating frequency of Radiation through equipment enclosures, power supplies, control equipment, audio cables, generated or amplified by radio transmitting equipment when the radio transmitting equipment is connected to a non-radiative purely resistive load or in the receiver state. If the radiated stray interference of the radio transmitting equipment on a certain frequency is too large, not only the radio frequency indexes of the equipment, including the indexes of modulation spectrum, adjacent channel leakage rejection ratio, adjacent channel power, receiving sensitivity and the like, are affected, but also the equipment working on the frequency cannot be normally used, and the development of related services is adversely affected. The radiated spurious disturbance test is an important technical means for inspecting the performance of radio transmitting equipment and stopping harmful interference from the source.
The existing scheme mainly comprises the following steps when the radiation stray test is carried out: conventional Far Field testing (DFF), tightening Far Field testing (IFF), and radiating near Field testing methods.
The traditional far-field test method is mature, and whether the stray radiation level of the terminal equipment is within the range required by the regulations or not is judged by testing the far-field radiation characteristic of the terminal equipment. The traditional far-field test scheme mainly comprises the following parts: microwave dark room, terminal equipment and rotatable revolving stage, logical of six subsides dress inhale ripples pyramid materialSignal antenna, stray radiation detection antenna, comprehensive tester, spectrum analyzer, filter, amplifier, computer control platform. Signaling communication is established through comprehensive tester and terminal equipment, stray radiation signal is received through stray radiation detecting antenna to through filtering, amplify and convey to the spectral analysis appearance, rotatable revolving stage and the rotatory 360 degrees realization position adjustment of stray radiation detecting antenna that load terminal equipment are controlled through computer control platform, and through computer control comprehensive tester and terminal equipment communication, and the test of computer control spectral analysis appearance. But the defects of the traditional far field test are obvious, 1) the scheme test is long in time consumption, and the average test of 1 frequency band needs to consume 2 hours; 2) the test environment is large in occupied space: a standard stray radiation test environment takes up about 30m of floor space2(ii) a 3) The construction cost of the test environment is high; the complete full-electric wave darkroom stray radiation test environment is built, and about 1000 ten thousand RMB (site cost required by the environment is not included); 4) traditional far-field testing can only be used for spot-check testing, and cannot cover every machine. RSE data regulation problems, finding the problem is a large fine if the problem is light, and forbidding machine sales even affecting brands if the problem is heavy. And the radiation stray disturbance belongs to the characteristics of the whole machine, and the index consistency is poor. The existing test scheme only realizes the test in trial production or mass production, is difficult to cover all machines and has larger risk.
The compact far-field test is introduced on the basis of the traditional far-field test, utilizes the reflection principle of electromagnetic waves and obtains approximately uniform plane wave irradiation meeting the test requirement by means of a reflecting surface technology, and achieves the measuring technology of shortening the measuring distance. Compared with the traditional far-field test, the size of the compact far-field dark room is relatively small, the space loss is relatively small, and the construction cost is relatively low. The defects include: 1) the scheme test takes long time: the average time for testing 1 frequency band is 2 hours; 2) the test environment has larger building space, and the occupied area of a standard stray radiation test environment needs about 15m2(ii) a 3) The construction cost of the test environment is high; 4) the device can only be used for sampling test, and cannot cover each machine.
The radiated near field test measures the field intensity value generated by the wireless product at a certain distance through a receiver, and then converts the ERP or EIRP value transmitted by the antenna end through a formula ERP (EIRP) ═ E +20logd-104.8, wherein E is the field intensity and d is the distance between the measured antenna and the tested device. The radiation stray value can be obtained only by multi-point testing and multiple calculations, so that the testing precision is limited; and, because the test efficiency is low, also do not facilitate the batch go on of testing.
In view of the above problems in the prior art, the present exemplary embodiment provides a radiation stray test method, which can be applied to a radiation stray test of an electronic device such as a mobile phone and a tablet computer. Referring to fig. 1, the above-mentioned radiation stray test method may include the steps of:
s11, controlling the reference signal source to emit a calibration reference signal in the test environment to obtain spatial compensation data;
s12, controlling the tester to emit a first radio frequency signal corresponding to a first test state in the test environment to obtain a first receiving signal;
s13, combining the first received signal and the spatial compensation data to obtain a first test signal of the tester under the first test state;
and S14, comparing the first test signal with a preset threshold value to obtain a first test result corresponding to the first state.
In the interaction method based on the augmented reality device provided by the present exemplary embodiment, on one hand, the spatial compensation data is obtained by first transmitting the calibration reference signal in the test environment; then, in a test environment, enabling a test machine to transmit a first radio frequency signal with certain power and frequency corresponding to a first test state to acquire a first receiving signal; therefore, the radiation stray signals of the testing machine in the first testing state can be accurately acquired according to the first receiving signals and the space compensation data, the stray signals are judged, and the radiation stray testing on the terminal device based on the near-field coupling principle can be realized. On the other hand, the test time consumption can be reduced, and further more test machines can be covered, and batch test is realized. In addition, the test environment is small in size, so that the cost can be effectively reduced.
Hereinafter, the steps of the radiation stray test method in the present exemplary embodiment will be described in more detail with reference to the drawings and examples.
In this example embodiment, a test environment may be set up in advance. Specifically, referring to fig. 2, the test environment may include a shielding cavity with a wave-absorbing material, and the shielding cavity provides a test space for shielding external electromagnetic wave interference. A plurality of coupling plates and a support plate for placing the testing machine are arranged in the shielding cavity. For example, the carrier may be a support of a frame structure, so that the tester may be suspended in the shielding cavity by the support. For example, a bracket with a simple frame, which may be of plastic or wood construction. The specific support structure can be realized by adopting a conventional scheme, and the details of the disclosure are not repeated.
In addition, the positions and the number of the coupling plates in the shielding cavities can be configured according to the size and the sensitive points of the tester. Meanwhile, the number of the filters can be correspondingly configured outside the shielding cavity according to the number of the coupling plates; and correspondingly configuring the number of the amplifiers according to the number of the filters. The amplifier is connected to a spectrometer or a comprehensive tester with a spectrum analysis function. And the frequency spectrograph or the comprehensive tester with the frequency spectrum analysis function is connected with a control terminal, so that the control terminal can receive and read the test data.
Specifically, the control terminal may include a processor, to which a memory and a communication interface may be connected, and a power circuit. For example, the control terminal may be an intelligent terminal device such as a PC or a notebook computer.
The size of the shielding cavity can be a cube or a cuboid structure with the side length of 0.4-0.7 m.
And step S11, controlling the reference signal source to emit a calibration reference signal in the test environment to acquire the spatial compensation data.
In this example embodiment, a calibration procedure may be performed first before testing. Specifically, the following steps may be included:
step S111, controlling the reference signal source to transmit a calibration reference signal corresponding to a calibration state in the test environment to obtain a calibration receiving signal;
step S112, determining the spatial compensation data according to a difference between the strength of the calibration reference signal and the strength of the calibration received signal.
In this example embodiment, a reference signal source may be placed in a test environment, a communication connection between a control terminal and the reference signal source is established, the control terminal controls the reference signal source to transmit a calibration reference signal with a specific frequency and a specific strength, the calibration reference signal is received and detected by a coupling board in the test environment, and after being sequentially subjected to filter processing and amplifier amplification processing, the calibration reference signal is transmitted to a spectrum analyzer to complete signal measurement, so as to obtain a calibration received signal.
Due to the existence of space loss, the space loss needs to be compensated by line loss compensation. Therefore, the spatial loss, i.e., spatial compensation data, can be calculated by the power difference between the calibration reference signal actually transmitted by the reference signal source and the calibration received signal actually measured by the spectrum analyzer. And uses the spatial compensation data as a power compensation value in the measurement process.
In other exemplary embodiments of the present disclosure, when performing the calibration process, after obtaining the spatial compensation data, the position and the angle of each coupling plate in the shielding cavity may also be adjusted according to the spatial compensation data.
Step S12, the testing machine is controlled to transmit a first radio frequency signal corresponding to the first test state in the test environment to obtain a first received signal.
In this exemplary embodiment, a testing machine, such as a mobile phone, may be first placed on the carrier board in the shielding cavity during testing. The positions and the number of the coupling plates in the shielding cavities can be configured according to the size of the tester and the number of sensitive points of the tester. For example, the distance between each coupling plate and the tester can be configured according to the size of the tester, so as to adjust the position of the coupling plate in the shielding cavity. In addition, the number of coupling plates can be configured according to the number of sensitive points on the tester, namely the positions and the number of possible radiation stray points. For example, for a mobile phone, the sensitive points may include an antenna, a fingerprint recognition component, a screen IC, a rear camera, and the like. One coupling plate may be configured to correspond to one sensitive point, or one coupling plate may be configured to correspond to a plurality of sensitive points that are relatively close to each other, and so on.
In addition, the test machine can also establish communication connection with the control terminal, so that the test machine can receive an instruction of the control terminal and transmit a first radio frequency signal corresponding to the first test state in the test environment. The first test state may include: frequency band, system, channel, power strength, frequency and other parameters. The first radio frequency signal may be a user-specified radio frequency signal having a first test power and a first test frequency. For example, the first radio frequency signal is configured to be 1800Hz, GSM radio frequency signal.
In this exemplary embodiment, after the testing machine transmits the first radio frequency signal, the method may further include:
step S121, receiving the first radio frequency signal by using a plurality of coupling plates in the test environment;
step S122, filtering the first radio frequency signal to obtain an initial stray signal;
step S123, amplifying the original stray signal to obtain an amplified stray signal;
step S124, controlling a program-controlled radio frequency switch to send the amplified spurious signal to a frequency spectrograph through a target channel, so as to obtain signal intensity and signal frequency data corresponding to the spurious signal.
For example, the first rf signal may be received and detected by each coupling plate, and the main rf signal coupled to the coupling plate is filtered by a filter to obtain a harmonic signal, i.e. an initial spurious signal, and the LNA low noise amplifier amplifies the harmonic signal filtered by the filter. Switching a radio frequency detection channel by using a program-controlled radio frequency switch, and transmitting a harmonic signal to a spectrum analyzer to complete signal measurement; power strength and frequency data of the signal are obtained. And sending the signal to the terminal equipment to obtain a first receiving signal.
Step S13, combining the first received signal and the spatial compensation data to obtain a first test signal of the tester under the first test state.
In this exemplary embodiment, after the power intensity and the frequency data of the first received signal corresponding to the first radio frequency signal are obtained, the power compensation may be performed on the first received signal by combining the spatial compensation data, and then the intensity of the first test signal corresponding to the radiation spurious is calculated.
Step S14, comparing the first test signal with a preset threshold to obtain a first test result corresponding to the first state.
In this exemplary embodiment, after the first test result is calculated, the first test result may be stored in a memory, and compared with a preset threshold, a threshold is determined, and whether the test result passes or not is determined. And saves the test results in memory.
In this exemplary embodiment, based on the above, the method may further include:
step S21, controlling the tester to transmit a second radio frequency signal corresponding to a second test state in the test environment to obtain a second received signal;
step S22, combining the second received signal and the spatial compensation data to obtain a second test signal of the tester under the second test state;
step S23, comparing the second test signal with a preset threshold to obtain a second test result corresponding to the second test state.
Specifically, after the first test is performed, the control terminal can also control the test machine to generate a second radio frequency signal different from the first radio frequency signal, so as to perform switching of different test states, and complete more diversified tests. For example, the second radio frequency signal may be a GSM-standard, 900Hz radio frequency signal.
In addition, when the tester is switched to different test states, the tester can be configured to transmit radio frequency signals with different power intensities, and different channels can be used. For example, testing in an LTE system or a TDS system, testing different frequency points, testing different channels, controlling testing at different power intensities according to a power range in a preset communication protocol, testing a second harmonic or a third harmonic, and the like. The present disclosure is not particularly limited with respect to the detailed parameters employed under the different test conditions.
Or, when the configuration tester transmits the first radio frequency signal to test, if the test fails. For example, the preset threshold is-35 dBm and the first test result is-30 dBm. A second test can then be performed and the position or angle of the coupling plate adjusted. And multiple measurements of a single test state of the tester are realized.
According to the method provided by the embodiment of the disclosure, before a formal test is started, a control terminal is used for controlling a reference signal source to transmit a calibration reference signal in a test environment in advance to calculate space compensation data to be used as a power compensation value in a measurement process, and meanwhile, a measurement device is calibrated. During formal testing, a testing machine is placed in a testing environment, a terminal device is used for controlling the testing machine to transmit a radio-frequency signal with certain power and frequency corresponding to an appointed testing state, a coupling plate in the testing environment is used for detecting and collecting the radio-frequency signal, the radio-frequency signal is subjected to processing such as filtering and amplification, and a frequency spectrograph is used for analyzing to obtain a corresponding received signal; therefore, the radiation stray signal of the testing machine in the current testing state can be accurately acquired according to the received signal and the space compensation data, and the stray signal is judged. Therefore, the fast radiation stray test of the tester can be realized based on the near-field coupling principle. And further, the test time consumption is effectively reduced, more test machines can be covered, and batch test is realized. In the test process, the tester can be controlled to switch between different test states, so that tests under different systems, different frequency bands and different power intensities are realized.
In addition, the test environment is relatively small in size, so that the test cost can be effectively reduced. And the number and the positions of the coupling plates are configured in advance according to the size and the sensitive points of the testing machine before testing, and the coupling plates do not need to move or rotate in the testing process, so that the testing difficulty is further reduced, and the testing time is shortened.
It is to be noted that the above-mentioned figures are only schematic illustrations of the processes involved in the method according to an exemplary embodiment of the invention, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.
Further, referring to fig. 3, the exemplary embodiment further provides a radiation stray testing apparatus 30, including: a compensation information obtaining module 301, a first received signal obtaining module 302, a first test signal obtaining module 303, and a first test result generating module 304. Wherein,
the compensation information obtaining module 301 may be configured to control a reference signal source to emit a calibration reference signal in a test environment to obtain spatial compensation data.
The first received signal acquiring module 302 may be configured to control the testing machine to emit a first radio frequency signal corresponding to a first test state in the test environment, so as to acquire a first received signal.
The first test signal acquiring module 303 may be configured to acquire a first test signal of the tester in the first test state by combining the first received signal and the spatial compensation data.
The first test result generating module 304 may be configured to compare the first test signal with a preset threshold to obtain a first test result corresponding to the first state.
In an example of the present disclosure, the compensation information obtaining module 301 may include: a calibration received signal acquisition unit, a spatial compensation data calculation unit (not shown in the figure). Wherein,
the calibration received signal acquiring unit may be configured to control the reference signal source to transmit a calibration reference signal corresponding to a calibration state in the test environment, so as to acquire a calibration received signal.
The spatial compensation data calculation unit may be configured to determine the spatial compensation data based on a difference between the strength of the calibration reference signal and the strength of the calibration received signal.
In one example of the present disclosure, the test environment includes a shielded cavity, and a plurality of coupling plates disposed within the shielded cavity.
The compensation information obtaining module 301 may further include: a device calibration unit (not shown in the figure).
The device calibration unit may be adapted to calibrate the coupling plate in dependence of the spatial compensation data.
In an example of the present disclosure, the first received signal acquisition module 302 may include: a first rf signal receiving unit, a filtering unit, an amplifying unit and a data analyzing unit (not shown).
The first radio frequency signal receiving unit may be configured to receive the first radio frequency signal using a plurality of coupling boards in the test environment.
The filtering processing unit may be configured to perform filtering processing on the first radio frequency signal to obtain an initial spurious signal.
The amplification processing unit may be configured to perform amplification processing on the original spurious signal to obtain an amplified spurious signal.
The data analysis unit may be configured to control the program-controlled radio frequency switch to transmit the amplified spurious signal to a spectrometer through a target channel, so as to obtain signal intensity and signal frequency data corresponding to the spurious signal.
In an example of the present disclosure, the apparatus 30 may further include: a second received signal acquiring module, a second test signal acquiring module and a second test result generating module (not shown in the figure).
Wherein,
the second received signal acquiring module may be configured to control the tester to transmit a second radio frequency signal corresponding to a second test state in the test environment, so as to acquire a second received signal.
The second test signal acquiring module may be configured to acquire a second test signal of the tester in the second test state by combining the second received signal and the spatial compensation data.
The second test result generating module may be configured to compare the second test signal with a preset threshold to obtain a second test result corresponding to the second test state.
In one example of the present disclosure, the test environment includes a shielded cavity; and a coupling plate and a support plate for placing the testing machine are arranged in the shielding cavity.
The apparatus 30 may further include: a test device configuration unit (not shown).
The test device configuration unit can be used for configuring the positions and the number of the coupling plates in the shielding cavity according to the size and the sensitive points of the test machine; correspondingly configuring the number of the filters according to the number of the coupling plates; and correspondingly configuring the number of the amplifiers according to the number of the filters.
Further, referring to fig. 4, an exemplary embodiment of the present invention provides a radiation stray testing system, including: a test environment, a test component 420, a reference signal source, and a master unit 430.
A test environment comprising: the tester comprises a shielding cavity 410, wherein a plurality of coupling plates 411 and a carrier plate 412 for placing the tester are arranged in the shielding cavity 410.
A test assembly comprising: the filters 421, the number of which is matched with the number of the coupling plates, are used for filtering the radio frequency signals collected by the coupling plates; the amplifiers 422 are matched with the filters in number and used for amplifying the signals output by the filters; the program-controlled radio frequency switch 423 is used for sending the amplified signal to the frequency spectrograph through a target channel; a spectrometer 424 for receiving the signal and analyzing to obtain power and frequency information of the signal.
And the reference signal source is used for providing a calibration reference signal.
The main control unit 430 is configured to control the testing machine to transmit the radio frequency signal in the testing environment, and control the reference signal source to transmit the calibration reference signal in the testing environment; and calculating the test result of the tester.
The details of the above-mentioned radiation stray test apparatus 30 and the modules in the radiation stray test system have been described in detail in the corresponding radiation stray test method, and therefore are not described herein again.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
FIG. 6 illustrates a schematic structural diagram of a computer system suitable for use with the electronic device to implement an embodiment of the invention.
It should be noted that the computer system 600 of the electronic device shown in fig. 6 is only an example, and should not bring any limitation to the function and the scope of the application of the embodiment of the present invention.
As shown in fig. 6, the computer system 600 includes a Central Processing Unit (CPU) 601, which can perform various appropriate actions and processes according to a program stored in a Read-Only Memory (ROM) 602 or a program loaded from a storage section 608 into a Random Access Memory (RAM) 603. In the RAM 603, various programs and data necessary for system operation are also stored. The CPU 601, ROM 602, and RAM 603 are connected to each other via a bus 604. An Input/Output (I/O) interface 605 is also connected to bus 604.
The following components are connected to the I/O interface 605: an input portion 606 including a keyboard, a mouse, and the like; an output section 607 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, a speaker, and the like; a storage section 608 including a hard disk and the like; and a communication section 609 including a Network interface card such as a LAN (Local Area Network) card, a modem, or the like. The communication section 609 performs communication processing via a network such as the internet. The driver 610 is also connected to the I/O interface 605 as needed. A removable medium 611 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 610 as necessary, so that a computer program read out therefrom is mounted in the storage section 608 as necessary.
In particular, according to an embodiment of the present invention, the processes described below with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the invention include a computer program product comprising a computer program embodied on a computer-readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 509, and/or installed from the removable medium 511. The computer program executes various functions defined in the system of the present application when executed by a Central Processing Unit (CPU) 501.
It should be noted that the computer readable medium shown in the embodiment of the present invention may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM), a flash Memory, an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present invention, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in the embodiments of the present invention may be implemented by software or hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.
As another aspect, the present application also provides a computer-readable medium, which may be contained in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method as described in the embodiments below. For example, the electronic device may implement the steps shown in fig. 1.
Furthermore, the above-described figures are merely schematic illustrations of processes involved in methods according to exemplary embodiments of the invention, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the terms of the appended claims.
Claims (8)
1. A radiated spurious test method, comprising:
controlling a reference signal source to transmit a calibration reference signal corresponding to a calibration state in a test environment to acquire a calibration receiving signal; determining spatial compensation data from a difference between the strength of the calibration reference signal and the strength of the calibration received signal; adjusting the position and angle of each coupling plate in the shielding cavity according to the space compensation data in the calibration process;
controlling a testing machine to transmit a first radio frequency signal corresponding to a first testing state in the testing environment so as to obtain a first receiving signal;
combining the first receiving signal and the spatial compensation data to obtain a first test signal of the tester in the first test state, so as to perform power compensation on the first receiving signal through the spatial compensation data;
comparing the first test signal with a preset threshold value to obtain a first test result corresponding to the first test state;
the testing environment comprises a shielding cavity and a plurality of coupling plates, the distance between each coupling plate and the testing machine is configured according to the size of the testing machine, the position of each coupling plate in the shielding cavity is further adjusted, one coupling plate is configured to correspond to one sensitive point, or one coupling plate is configured to a plurality of sensitive points which are relatively close to each other; the shielding cavity is of a cubic or cuboid structure with the side length of 0.4-0.7 m.
2. The method of claim 1, wherein the obtaining the first received signal comprises:
receiving the first radio frequency signal with a plurality of coupling plates in the test environment;
filtering the first radio frequency signal to acquire an initial stray signal;
amplifying the initial stray signal to obtain an amplified stray signal;
and controlling the program-controlled radio frequency switch to enable the amplified stray signals to be transmitted to a frequency spectrograph through a target channel so as to obtain signal intensity and signal frequency data corresponding to the stray signals.
3. The method of claim 1 or 2, wherein the test environment comprises a shielded cavity; a coupling plate and a support plate for placing the testing machine are arranged in the shielding cavity; the method further comprises the following steps:
correspondingly configuring the number of filters according to the number of the coupling plates; and
and correspondingly configuring the number of amplifiers according to the number of the filters.
4. The method of claim 1, further comprising:
controlling the tester to transmit a second radio frequency signal corresponding to a second test state in the test environment so as to obtain a second receiving signal;
combining the second receiving signal and the space compensation data to obtain a second test signal of the tester in the second test state;
and comparing the second test signal with a preset threshold value to obtain a second test result corresponding to the second test state.
5. A radiated spurious test apparatus, comprising:
the compensation information acquisition module is used for controlling the reference signal source to transmit a calibration reference signal corresponding to the calibration state in the test environment so as to acquire a calibration receiving signal; determining spatial compensation data from a difference between the strength of the calibration reference signal and the strength of the calibration received signal; adjusting the position and the angle of each coupling plate in the shielding cavity according to the space compensation data in the calibration process;
the first receiving signal acquiring module is used for controlling the testing machine to transmit a first radio frequency signal corresponding to a first testing state in the testing environment so as to acquire a first receiving signal;
a first test signal obtaining module, configured to obtain, by combining the first received signal and the spatial compensation data, a first test signal of the tester in the first test state, so as to perform power compensation on the first received signal through the spatial compensation data;
the first test result generation module is used for comparing the first test signal with a preset threshold value to obtain a first test result corresponding to the first test state;
the testing environment comprises a shielding cavity and a plurality of coupling plates, the distance between each coupling plate and the testing machine is configured according to the size of the testing machine, the position of each coupling plate in the shielding cavity is further adjusted, one coupling plate is configured to correspond to one sensitive point, or one coupling plate is configured to a plurality of sensitive points which are relatively close to each other; the shielding cavity is of a cubic or cuboid structure with the side length of 0.4-0.7 m.
6. A radiated spurious test system, comprising:
a test environment comprising: the test device comprises a shielding cavity, a plurality of coupling plates and a support plate for placing a test machine, wherein the shielding cavity is internally provided with the plurality of coupling plates; configuring the distance between each coupling plate and the testing machine according to the size of the testing machine, further adjusting the position of each coupling plate in the shielding cavity, configuring one coupling plate corresponding to one sensitive point, or configuring one coupling plate for a plurality of sensitive points which are relatively close to each other; the shielding cavity is of a cubic or cuboid structure with the side length of 0.4-0.7 m;
a test assembly comprising: the filter is matched with the coupling plates in quantity and used for filtering the radio frequency signals collected by the coupling plates; the number of the amplifiers is matched with that of the filters, and the amplifiers are used for amplifying the signals output by the filters; the program control radio frequency switch is used for sending the amplified signal to the frequency spectrograph through a target channel; the frequency spectrograph is used for receiving and analyzing a signal to acquire power and frequency information of the signal;
a reference signal source for providing a calibration reference signal;
the main control unit is used for controlling the testing machine to transmit a first radio frequency signal corresponding to a first testing state in the testing environment so as to acquire a first receiving signal, and controlling the reference signal source to transmit a calibration reference signal in the testing environment so as to acquire a calibration receiving signal; determining spatial compensation data according to a difference between the strength of the calibration reference signal and the strength of the calibration received signal; adjusting the position and angle of each coupling plate in the shielding cavity according to the space compensation data in the calibration process; combining the first receiving signal and the spatial compensation data to obtain a first test signal of the tester in the first test state, so as to perform power compensation on the first receiving signal through the spatial compensation data; and calculating the test result of the tester.
7. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the radiated spurious test method according to any one of claims 1 to 4.
8. An electronic device, comprising:
one or more processors;
a storage device to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the radiated spurious test method of any of claims 1-4.
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| CN112986729A (en) * | 2021-02-05 | 2021-06-18 | 歌尔科技有限公司 | Radiation stray detection method, detection device and readable storage medium |
| CN113905404B (en) * | 2021-11-02 | 2024-09-27 | 锐凌无线有限责任公司 | Method, device, equipment and medium for testing wireless communication module |
| CN114710216B (en) * | 2022-04-24 | 2023-12-22 | 西安光谷防务技术股份有限公司 | 5G communication wireless signal testing method |
| CN115037389B (en) * | 2022-06-06 | 2024-01-26 | 扬芯科技(深圳)有限公司 | Multi-antenna radiation stray test system |
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