CN108512613B - Radiation stray test method, device, storage medium and test system - Google Patents
Radiation stray test method, device, storage medium and test system Download PDFInfo
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- CN108512613B CN108512613B CN201810299285.1A CN201810299285A CN108512613B CN 108512613 B CN108512613 B CN 108512613B CN 201810299285 A CN201810299285 A CN 201810299285A CN 108512613 B CN108512613 B CN 108512613B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
- H04B17/17—Detection of non-compliance or faulty performance, e.g. response deviations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0085—Monitoring; Testing using service channels; using auxiliary channels using test signal generators
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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
- H04B17/318—Received signal strength
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Abstract
The embodiment of the application provides a radiation stray test method, a device, a storage medium and a test system, wherein the radiation stray test method comprises the following steps: controlling a testing machine to transmit a radio frequency signal at a preset transmitting power, and judging whether the signal intensity of the acquired first receiving signal is greater than a preset signal intensity threshold value or not; if the signal intensity of the first received signal is greater than the preset signal intensity threshold, switching off a radio frequency signal source of the testing machine, and switching on the testing machine to an external radio frequency signal source; controlling the tester to transmit radio frequency signals at the preset transmitting power, and judging whether the signal intensity of the acquired second receiving signal is greater than the preset signal intensity threshold value; and if the signal intensity of the second received signal is less than or equal to the preset signal intensity threshold, determining a radio frequency signal source of the tester as a stray source of radiation stray. The radiated spurious test method can quickly determine the spurious source of the radiated spurious in the tester.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a radiation spurious response test method, device, storage medium, and test system.
Background
Before shipping, electronic devices such as smart phones need to be subjected to a stray radiation test to determine whether the electronic devices meet the stray radiation standard. When the electronic device does not meet the radiated spurious standards, the electronic device needs to be debugged.
In the radiation stray test process, when the radiation stray of the electronic equipment exceeds the standard, a stray source needs to be determined so as to correspondingly debug the electronic equipment. Stray sources of electronic equipment include radio frequency signal sources. During the radiation stray test, it is often difficult to determine whether the stray source is a radio frequency signal source.
Disclosure of Invention
The embodiment of the application provides a radiation stray test method, a radiation stray test device, a storage medium and a test system, which can quickly determine a radiation stray source in a test machine.
The embodiment of the application provides a radiation stray test method, which comprises the following steps:
controlling a testing machine to transmit a radio frequency signal at a preset transmitting power, and judging whether the signal intensity of the acquired first receiving signal is greater than a preset signal intensity threshold value or not;
if the signal intensity of the first received signal is greater than the preset signal intensity threshold, switching off a radio frequency signal source of the testing machine, and switching on the testing machine to an external radio frequency signal source;
controlling the tester to transmit radio frequency signals at the preset transmitting power, and judging whether the signal intensity of the acquired second receiving signal is greater than the preset signal intensity threshold value;
and if the signal intensity of the second received signal is less than or equal to the preset signal intensity threshold, determining a radio frequency signal source of the tester as a stray source of radiation stray.
The embodiment of the present application further provides a radiation stray test apparatus, including:
the first judgment module is used for controlling the testing machine to transmit the radio frequency signal at a preset transmitting power and judging whether the signal intensity of the acquired first receiving signal is greater than a preset signal intensity threshold value or not;
the switching module is used for disconnecting the radio frequency signal source of the testing machine and connecting the testing machine with an external radio frequency signal source if the signal intensity of the first received signal is greater than the preset signal intensity threshold value;
the second judgment module is used for controlling the testing machine to transmit the radio frequency signal at the preset transmitting power and judging whether the signal intensity of the acquired second receiving signal is greater than the preset signal intensity threshold value or not;
and the determining module is used for determining the radio frequency signal source of the tester as a stray source of radiation stray if the signal intensity of the second received signal is less than or equal to the preset signal intensity threshold.
The embodiment of the present application further provides a storage medium, where a computer program is stored, and when the computer program runs on a computer, the computer is enabled to execute the above radiation stray test method.
The embodiment of the application also provides a test system, which comprises test equipment and a tester, wherein the test equipment is electrically connected with the tester;
the test equipment comprises a processor and a memory, wherein a computer program is stored in the memory, and the processor is used for executing the radiation stray test method by calling the computer program stored in the memory.
The radiation stray test method provided by the embodiment of the application comprises the following steps: controlling a testing machine to transmit a radio frequency signal at a preset transmitting power, and judging whether the signal intensity of the acquired first receiving signal is greater than a preset signal intensity threshold value or not; if the signal intensity of the first received signal is greater than the preset signal intensity threshold, switching off a radio frequency signal source of the testing machine, and switching on the testing machine to an external radio frequency signal source; controlling the tester to transmit radio frequency signals at the preset transmitting power, and judging whether the signal intensity of the acquired second receiving signal is greater than the preset signal intensity threshold value; and if the signal intensity of the second received signal is less than or equal to the preset signal intensity threshold, determining a radio frequency signal source of the tester as a stray source of radiation stray. In the radiation stray testing method, when the radiation stray index of the testing machine does not meet the standard, the radio frequency signal source of the testing machine can be switched to an external radio frequency signal source for testing, so that whether the radiation stray source is the radio frequency signal source of the testing machine or not can be quickly determined, and the radiation stray source in the testing machine can be quickly determined.
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 schematic structural diagram of a testing machine in the embodiment of the present application.
Fig. 2 is another schematic structural diagram of the testing machine in the embodiment of the present application.
Fig. 3 is a schematic flowchart of a radiation stray test method according to an embodiment of the present application.
Fig. 4 is another schematic flow chart of a radiation stray test method according to an embodiment of the present application.
Fig. 5 is a schematic flowchart of a radiation stray test method according to an embodiment of the present application.
Fig. 6 is a schematic flow chart of a radiation stray test method according to an embodiment of the present application.
Fig. 7 is a schematic view of an application scenario of the radiation stray test method according to the embodiment of the present application.
Fig. 8 is a schematic structural diagram of a radiation stray testing apparatus according to an embodiment of the present application.
Fig. 9 is a schematic structural diagram of a test apparatus according to an embodiment of the present application.
Fig. 10 is another schematic structural diagram of a test apparatus 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 inventive step, are within the scope of the present application.
The terms "first," "second," "third," and the like in the description and in the claims of the present application and in the above-described drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the objects so described are interchangeable under appropriate circumstances. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, or apparatus, electronic device, system comprising a list of steps is not necessarily limited to those steps or modules or units explicitly listed, may include steps or modules or units not explicitly listed, and may include other steps or modules or units inherent to such process, method, apparatus, electronic device, or system.
The radiation stray testing method provided by the embodiment of the application is used for performing radiation stray testing on a testing machine so as to determine whether the testing machine meets the radiation stray standard. When a tester does not meet the radiated spurious test standard, a spurious source of radiated spurious in the tester can be quickly determined, and the tester can be debugged. The testing machine may be an electronic device capable of transceiving wireless signals, such as a smart phone, a tablet computer, and the like. The stray source is the source of the stray radiation signal generated in the testing machine. For example, the stray sources may be functional devices of the tester, such as rf signal sources, rf antennas, motors, sensors, etc.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a testing machine in an embodiment of the present application. The testing machine may be the electronic device 100. The electronic device 100 includes a display screen 10, a middle frame 20, a circuit board 30, a battery 40, and a rear cover 50.
Wherein the display screen 10 is mounted on the rear cover 50 to form a display surface of the electronic device 100. The display screen 10 serves as a front housing of the electronic device 100, and forms a receiving space with the rear cover 50 for receiving other electronic components or functional components of the electronic device 100. Meanwhile, the display screen 10 forms a display surface of the electronic apparatus 100 for displaying information such as images, texts, and the like. The Display screen 10 may be a Liquid Crystal Display (LCD) or an organic light-Emitting Diode (OLED) Display screen.
In some embodiments, a glass cover plate may be disposed over the display screen 10. Wherein, the glass cover plate can cover the display screen 10 to protect the display screen 10 and prevent the display screen 10 from being scratched or damaged by water.
In some embodiments, as shown in FIG. 1, the display screen 10 may include a display area 11 and a non-display area 12. The display area 11 performs a display function of the display screen 10 for displaying information such as images and texts. The non-display area 12 does not display information. The non-display area 12 can be used for setting functional components such as a camera, a receiver, a touch electrode of a display screen, and the like. In some embodiments, the non-display area 12 may include at least one area located at upper and lower portions of the display area 11.
In some embodiments, as shown in FIG. 2, the display screen 10 may be a full-face screen. At this time, the display screen 10 may display information in a full screen, so that the electronic apparatus 100 has a large screen occupation ratio. The display screen 10 comprises only the display area 11 and no non-display area. At this time, functional components such as a camera and a proximity sensor in the electronic apparatus 100 may be hidden under the display screen 10, and the fingerprint recognition module of the electronic apparatus 100 may be disposed on the back of the electronic apparatus 100.
The middle frame 20 may have a thin plate-like or sheet-like structure, or may have a hollow frame structure. The middle frame 20 can be accommodated in the accommodating space formed by the display screen 10 and the rear cover 50. The middle frame 20 is used for providing a supporting function for the electronic components or functional modules in the electronic device 100, so as to mount the electronic components or functional modules in the electronic device together. For example, functional components such as a camera, a receiver, a circuit board, and a battery in the electronic apparatus may be mounted on the center frame 20 for fixation. In some embodiments, the material of the middle frame 20 may include metal or plastic.
The circuit board 30 is mounted inside the receiving space. For example, the circuit board 30 may be mounted on the middle frame 20 and received in the receiving space together with the middle frame 20. The circuit board 30 may be a motherboard of the electronic device 100. The circuit board 30 is provided with a grounding point to realize grounding of the circuit board 30. One, two or more of the functional components such as the motor, the microphone, the speaker, the receiver, the earphone interface, the universal serial bus interface (USB interface), the camera, the distance sensor, the ambient light sensor, the gyroscope, and the processor may be integrated on the circuit board 30.
In the present embodiment, the circuit board 30 is provided with a radio frequency circuit, and the radio frequency circuit includes a radio frequency signal source. The radio frequency signal source is used for generating a radio frequency signal. The electronic device 100 also includes a radio frequency antenna. The radio frequency signal generated by the radio frequency signal source is transmitted to the outside through the radio frequency antenna, so that communication between the electronic device 100 and a base station or other electronic devices is realized.
The battery 40 is mounted inside the receiving space. For example, the battery 40 may be mounted on the middle frame 20 and be received in the receiving space together with the middle frame 20. The battery 40 may be electrically connected to the circuit board 30 to enable the battery 40 to power the electronic device 100. The circuit board 30 may be provided thereon with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 40 to the various electronic components in the electronic device 100.
The rear cover 50 is used to form an outer contour of the electronic device 100. The rear cover 50 may be integrally formed. In the forming process of the rear cover 50, a rear camera hole, a fingerprint identification module mounting hole and the like can be formed in the rear cover 50.
The embodiment of the application provides a radiation stray test method which can be applied to a test system to carry out radiation stray test on the tester. The test system comprises test equipment and the tester. The test equipment is electrically connected with the tester to realize the control of the tester by the test equipment. The testing device may include a Personal Computer (PC) or the like. As shown in fig. 3, the radiation stray testing method may include the following steps:
and 110, controlling the tester to transmit the radio frequency signal at a preset transmitting power, and judging whether the signal intensity of the acquired first receiving signal is greater than a preset signal intensity threshold value.
The radiation stray test process may be controlled by the test equipment and performed in a shielded room, as shown in fig. 7. Wherein, the shielding room can be a darkroom, and the test equipment is arranged outside the shielding room. The shielding room can shield outside wireless signals, and the testing process in the shielding room is not interfered by outside wireless signals.
Wherein, the shielding chamber is internally provided with a test board, and the test machine is arranged on the test board for testing. To verify that the tester performs consistently in all transmit directions, the test station may be configured as a rotatable test station so that the tester can transmit rf signals in different directions.
And a receiving antenna is further arranged in the shielding chamber and connected with the test equipment. When the tester transmits radio frequency signals, the test equipment acquires received signals through the receiving antenna and analyzes the received signals to obtain test results of the tester.
During the test, the test equipment can control the tester to transmit the radio frequency signal at a preset transmitting power. The preset transmitting power may be a preset power value. For example, the predetermined transmit power may be 20dBm (decibel-milliwatts).
Then, the test equipment judges whether the signal strength of the first received signal acquired by the receiving antenna is greater than a preset signal strength threshold value. The preset signal strength threshold may be a preset signal strength value. For example, the preset signal strength threshold may be-36 dBm. The preset signal intensity threshold value represents a critical point between the condition that the radiation stray index of the tester meets the standard and the condition that the radiation stray index does not meet the standard.
It should be noted that the preset signal strength threshold is adapted to the preset transmission power. When the preset transmitting power is larger, the preset signal strength threshold value can also be set to be larger. When the preset transmission power is smaller, the preset signal strength threshold value can also be set smaller.
In addition, the preset signal strength threshold is also related to the frequency of the radio frequency signal emitted by the testing machine. For example, when the frequency of the radio frequency signal emitted by the tester is between 30MHz (megahertz) and 1GHz (gigahertz), the preset signal strength threshold may be set to-36 dBm; when the frequency of the radio frequency signal transmitted by the tester is between 1GHz and 4GHz, the preset signal strength threshold may be set to-30 dBm.
And when the judgment result shows that the signal intensity of the first received signal is greater than the preset signal intensity threshold, the radiation stray index of the test machine does not meet the standard, and at the moment, a stray source of the radiation stray needs to be determined. And when the judgment result shows that the signal intensity of the first received signal is less than or equal to the preset signal intensity threshold, indicating that the radiation stray index of the tester meets the standard.
And 120, if the signal intensity of the first received signal is greater than the preset signal intensity threshold, disconnecting the radio frequency signal source of the tester, and connecting the tester with an external radio frequency signal source.
And when the test equipment judges that the signal intensity of the first receiving signal is greater than the preset signal intensity threshold value, the radiation stray index of the test machine is not in accordance with the standard. At the moment, the test equipment controls to disconnect the radio frequency signal source of the test machine and connects the test machine with an external radio frequency signal source.
The radio frequency signal source of the tester is a radio frequency signal source arranged on a circuit board of the tester. The radio frequency signal source of the tester is used for generating radio frequency signals in the normal working process of the tester and transmitting the radio frequency signals to the outside through the radio frequency antenna of the tester. The external radio frequency signal source is a radio frequency signal source independent of the tester. For example, the external radio frequency signal source may be a radio frequency signal source provided on another electronic device, or the external radio frequency signal source may also be an oscillation circuit for generating a radio frequency signal.
It should be noted that the specification of the external radio frequency signal source is the same as that of the radio frequency signal source of the tester. And parameters of the external radio frequency signal source, such as working voltage, working current, internal impedance and the like, are the same as the parameters of the radio frequency signal source of the testing machine.
And 130, controlling the tester to transmit the radio frequency signal at the preset transmitting power, and judging whether the signal intensity of the acquired second receiving signal is greater than the preset signal intensity threshold value.
After the test equipment controls the test machine to be connected with an external radio frequency signal source, the test machine can be controlled to transmit radio frequency signals at the preset transmitting power, and whether the signal intensity of the second receiving signals acquired by the receiving antenna is larger than the preset signal intensity threshold value is judged.
140, if the signal strength of the second received signal is less than or equal to the preset signal strength threshold, determining the radio frequency signal source of the tester as a stray source of radiation stray.
And if the judgment result is that the signal intensity of the second received signal is less than or equal to the preset signal intensity threshold, indicating that the radiation stray index of the testing machine after the radio frequency signal source is switched meets the standard. That is, when the radio frequency signal source of the testing machine transmits a radio frequency signal, the radiation stray index of the testing machine does not meet the standard, and when the radio frequency signal source transmits a radio frequency signal, the radiation stray index of the testing machine meets the standard.
Thus, it can be determined that the stray radiation signal of the tester originates from the radio frequency signal source of the tester. Thus, the source of the radio frequency signal of the tester can be determined as a stray source of radiation spurs.
In some embodiments, as shown in fig. 4, the step 110 of controlling the tester to transmit the radio frequency signal at a preset transmission power and determining whether the signal strength of the acquired first received signal is greater than a preset signal strength threshold includes the following steps:
111, controlling the tester to transmit radio frequency signals with preset transmitting power;
112, setting the distance between the receiving antenna and the tester as a preset distance;
113, acquiring a first receiving signal through the receiving antenna;
114, determining whether the signal strength of the first received signal is greater than a preset signal strength threshold.
It will be appreciated that the strength of the signal received by the receive antenna during testing of the tester is also related to the distance between the receive antenna and the tester. The closer the distance between the receiving antenna and the tester is, the greater the received signal strength is; the further the distance between the receiving antenna and the tester, the less the received signal strength.
Wherein, the shielding room can satisfy the distance demand in the spurious radiation test. For example, the distance between the receiving antenna and the tester may be set to 3m (meters), 5m, 10m, or the like. A driving mechanism can be arranged in the shielding chamber and used for driving the receiving antenna to move in the shielding chamber. The drive mechanism may be controlled by the test equipment.
During the test, the test equipment can control the tester to transmit the radio frequency signal at a preset transmitting power. Then, the test equipment controls the driving mechanism to drive the receiving antenna to move so as to set the distance between the receiving antenna and the tester to be a preset distance. The preset distance may be a preset distance value. For example, the preset distance may be 3 m.
Then, the test equipment acquires a first received signal through the receiving antenna, and compares the signal strength of the first received signal with a preset signal strength threshold value to judge whether the signal strength of the first received signal is greater than the preset signal strength threshold value.
In some embodiments, as shown in fig. 5, the step 130 of controlling the testing machine to transmit the rf signal at the preset transmitting power and determining whether the signal strength of the acquired second received signal is greater than the preset signal strength threshold includes the following steps:
131, controlling the tester to transmit radio frequency signals with the preset transmitting power;
132, setting the distance between the receiving antenna and the tester to be the preset distance;
133, acquiring a second received signal through the receiving antenna;
134, determining whether the signal strength of the second received signal is greater than the preset signal strength threshold.
And after the test equipment controls the test machine to be connected with an external radio frequency signal source, the test machine is controlled again to transmit radio frequency signals at the preset transmitting power.
The distance between the receiving antenna and the tester may vary due to other factors, or due to operations such as resetting. Therefore, the test equipment can control the driving mechanism to drive the receiving antenna to move so as to set the distance between the receiving antenna and the tester to be the preset distance.
Then, the test equipment acquires a second received signal through the receiving antenna, and compares the signal strength of the second received signal with the preset signal strength threshold value to judge whether the signal strength of the second received signal is greater than the preset signal strength threshold value.
In some embodiments, as shown in fig. 6, step 120, if the signal strength of the first received signal is greater than the preset signal strength threshold, turning off the radio frequency signal source of the tester, and turning on the external radio frequency signal source of the tester includes the following steps:
and 121, if the signal intensity of the first received signal is greater than the preset signal intensity threshold, switching a switch from a first state to a second state, wherein the switch is connected with a radio frequency signal source of the testing machine and a radio frequency antenna of the testing machine in the first state, and the switch is connected with an external radio frequency signal source and the radio frequency antenna of the testing machine in the second state.
The test board in the shielding chamber can be provided with a change-over switch, or the change-over switch can be arranged in the test machine. The diverter switch may be a single pole double throw switch. The switch may be controlled by the test equipment.
The switch has a first state and a second state. In a first state, the switch switches on a radio frequency signal source of the tester and a radio frequency antenna of the tester. And in a second state, the change-over switch is connected with an external radio frequency signal source and the radio frequency antenna of the tester.
And when the test equipment judges that the signal intensity of the first received signal is greater than the preset signal intensity threshold value, the change-over switch is switched from the first state to the second state, so that the test machine is enabled to disconnect the radio frequency signal source of the test machine and connect an external radio frequency signal source.
In some embodiments, as shown in fig. 6, step 140, after determining the radio frequency signal source of the testing machine as a stray source of radiation stray if the signal strength of the second received signal is less than or equal to the preset signal strength threshold, further includes the following steps:
150, if the signal strength of the second received signal is greater than the preset signal strength threshold, determining the antenna end of the tester as a spurious radiation source.
After the test equipment judges whether the signal intensity of the second received signal is greater than the preset signal intensity threshold value, if the signal intensity of the second received signal is greater than the preset signal intensity threshold value, the radiation stray index of the test machine after the radio frequency signal source is switched still does not meet the standard. That is, when the radio frequency signal source of the testing machine transmits a radio frequency signal, the radiation stray index of the testing machine does not meet the standard, and when the radio frequency signal source transmits a radio frequency signal, the radiation stray index of the testing machine still does not meet the standard.
Therefore, the stray source of the radiation stray of the tester can eliminate the radio frequency signal source of the tester. At this time, the test equipment determines the antenna end of the tester as a spurious source of radiated spurs. The antenna end comprises a radio frequency antenna of the testing machine and electronic devices arranged around the radio frequency antenna, such as a camera, a distance sensor, a receiver and the like.
In particular implementation, the present application is not limited by the execution sequence of the described steps, and some steps may be performed in other sequences or simultaneously without conflict.
As can be seen from the above, the radiation stray test method provided in the embodiment of the present application includes: controlling a testing machine to transmit a radio frequency signal at a preset transmitting power, and judging whether the signal intensity of the acquired first receiving signal is greater than a preset signal intensity threshold value or not; if the signal intensity of the first received signal is greater than the preset signal intensity threshold, switching off a radio frequency signal source of the testing machine, and switching on the testing machine to an external radio frequency signal source; controlling the tester to transmit radio frequency signals at the preset transmitting power, and judging whether the signal intensity of the acquired second receiving signal is greater than the preset signal intensity threshold value; and if the signal intensity of the second received signal is less than or equal to the preset signal intensity threshold, determining a radio frequency signal source of the tester as a stray source of radiation stray. In the radiation stray testing method, when the radiation stray index of the testing machine does not meet the standard, the radio frequency signal source of the testing machine can be switched to an external radio frequency signal source for testing, so that whether the radiation stray source is the radio frequency signal source of the testing machine or not can be quickly determined, and the radiation stray source in the testing machine can be quickly determined.
The embodiment of the application also provides a radiation stray testing device which can be integrated in testing equipment to carry out radiation stray testing on a testing machine.
As shown in FIG. 8, the radiated spurious test apparatus 200 may include: the device comprises a first judging module 201, a switching module 202, a second judging module 203 and a determining module 204.
The first determining module 201 is configured to control the testing machine to transmit the radio frequency signal at a preset transmitting power, and determine whether the signal strength of the acquired first receiving signal is greater than a preset signal strength threshold.
The radiation stray test process can be controlled by test equipment and is carried out in a shielding room. Wherein, the shielding room can be a darkroom, and the test equipment is arranged outside the shielding room. The shielding room can shield outside wireless signals, and the testing process in the shielding room is not interfered by outside wireless signals.
Wherein, the shielding chamber is internally provided with a test board, and the test machine is arranged on the test board for testing. To verify that the tester performs consistently in all transmit directions, the test station may be configured as a rotatable test station so that the tester can transmit rf signals in different directions.
And a receiving antenna is further arranged in the shielding chamber and connected with the test equipment. When the tester transmits radio frequency signals, the test equipment acquires received signals through the receiving antenna and analyzes the received signals to obtain test results of the tester.
During the test, the first determining module 201 may control the tester to transmit the rf signal at a predetermined transmission power. The preset transmitting power may be a preset power value. For example, the predetermined transmit power may be 20dBm (decibel-milliwatts).
Subsequently, the first determining module 201 determines whether the signal strength of the first received signal acquired by the receiving antenna is greater than a preset signal strength threshold. The preset signal strength threshold may be a preset signal strength value. For example, the preset signal strength threshold may be-36 dBm. The preset signal intensity threshold value represents a critical point between the condition that the radiation stray index of the tester meets the standard and the condition that the radiation stray index does not meet the standard.
It should be noted that the preset signal strength threshold is adapted to the preset transmission power. When the preset transmitting power is larger, the preset signal strength threshold value can also be set to be larger. When the preset transmission power is smaller, the preset signal strength threshold value can also be set smaller.
In addition, the preset signal strength threshold is also related to the frequency of the radio frequency signal emitted by the testing machine. For example, when the frequency of the radio frequency signal emitted by the tester is between 30MHz (megahertz) and 1GHz (gigahertz), the preset signal strength threshold may be set to-36 dBm; when the frequency of the radio frequency signal transmitted by the tester is between 1GHz and 4GHz, the preset signal strength threshold may be set to-30 dBm.
And when the judgment result shows that the signal intensity of the first received signal is greater than the preset signal intensity threshold, the radiation stray index of the test machine does not meet the standard, and at the moment, a stray source of the radiation stray needs to be determined. And when the judgment result shows that the signal intensity of the first received signal is less than or equal to the preset signal intensity threshold, indicating that the radiation stray index of the tester meets the standard.
The switching module 202 is configured to, if the signal strength of the first received signal is greater than the preset signal strength threshold, turn off the radio frequency signal source of the tester, and turn on the external radio frequency signal source of the tester.
When the first determining module 201 determines that the signal strength of the first received signal is greater than the preset signal strength threshold, it indicates that the radiation stray index of the tester does not meet the standard. At this time, the switching module 202 controls to turn off the radio frequency signal source of the tester and turn on the tester with the external radio frequency signal source.
The radio frequency signal source of the tester is a radio frequency signal source arranged on a circuit board of the tester. The radio frequency signal source of the tester is used for generating radio frequency signals in the normal working process of the tester and transmitting the radio frequency signals to the outside through the radio frequency antenna of the tester. The external radio frequency signal source is a radio frequency signal source independent of the tester. For example, the external radio frequency signal source may be a radio frequency signal source provided on another electronic device, or the external radio frequency signal source may also be an oscillation circuit for generating a radio frequency signal.
It should be noted that the specification of the external radio frequency signal source is the same as that of the radio frequency signal source of the tester. And parameters of the external radio frequency signal source, such as working voltage, working current, internal impedance and the like, are the same as the parameters of the radio frequency signal source of the testing machine.
The second determining module 203 is configured to control the testing machine to transmit the radio frequency signal at the preset transmitting power, and determine whether the signal strength of the obtained second received signal is greater than the preset signal strength threshold.
After the switching module 202 controls the testing machine to switch on an external radio frequency signal source, the second determining module 203 may control the testing machine to transmit a radio frequency signal at the preset transmitting power, and determine whether the signal strength of the second received signal acquired by the receiving antenna is greater than the preset signal strength threshold.
A determining module 204, configured to determine, if the signal strength of the second received signal is less than or equal to the preset signal strength threshold, a radio frequency signal source of the tester as a stray source of radiation strays.
If the judgment result of the second judgment module 203 is that the signal intensity of the second received signal is less than or equal to the preset signal intensity threshold, it indicates that the radiation stray index of the tester after the radio frequency signal source is switched meets the standard. That is, when the radio frequency signal source of the testing machine transmits a radio frequency signal, the radiation stray index of the testing machine does not meet the standard, and when the radio frequency signal source transmits a radio frequency signal, the radiation stray index of the testing machine meets the standard.
Thus, it can be determined that the stray radiation signal of the tester originates from the radio frequency signal source of the tester. Thus, the determination module 204 may determine the radio frequency signal source of the tester as a stray source of radiated spurs.
In some embodiments, the first determining module 201 is configured to perform the following steps:
controlling a tester to transmit a radio frequency signal at a preset transmitting power;
setting the distance between a receiving antenna and the tester as a preset distance;
acquiring a first receiving signal through the receiving antenna;
and judging whether the signal strength of the first receiving signal is greater than a preset signal strength threshold value.
It will be appreciated that the strength of the signal received by the receive antenna during testing of the tester is also related to the distance between the receive antenna and the tester. The closer the distance between the receiving antenna and the tester is, the greater the received signal strength is; the further the distance between the receiving antenna and the tester, the less the received signal strength.
Wherein, the shielding room can satisfy the distance demand in the spurious radiation test. For example, the distance between the receiving antenna and the tester may be set to 3m (meters), 5m, 10m, or the like. A driving mechanism can be arranged in the shielding chamber and used for driving the receiving antenna to move in the shielding chamber. The drive mechanism may be controlled by the test equipment.
During the test, the first determining module 201 may control the tester to transmit the rf signal at a predetermined transmission power. Subsequently, the first determining module 201 controls the driving mechanism to drive the receiving antenna to move, so as to set the distance between the receiving antenna and the tester to be a preset distance. The preset distance may be a preset distance value. For example, the preset distance may be 3 m.
Subsequently, the first determining module 201 obtains a first received signal through the receiving antenna, and compares the signal strength of the first received signal with a preset signal strength threshold to determine whether the signal strength of the first received signal is greater than the preset signal strength threshold.
In some embodiments, the second determining module 203 is configured to perform the following steps:
controlling the tester to transmit radio frequency signals at the preset transmitting power;
setting the distance between the receiving antenna and the tester as the preset distance;
acquiring a second receiving signal through the receiving antenna;
and judging whether the signal strength of the second receiving signal is greater than the preset signal strength threshold value.
After the switching module 202 controls the tester to switch on an external radio frequency signal source, the second judging module 203 controls the tester to transmit a radio frequency signal at the preset transmitting power.
The distance between the receiving antenna and the tester may vary due to other factors, or due to operations such as resetting. Therefore, the second determining module 203 may control the driving mechanism to drive the receiving antenna to move, so as to set the distance between the receiving antenna and the tester to the preset distance.
Subsequently, the second determining module 203 obtains a second received signal through the receiving antenna, and compares the signal strength of the second received signal with the preset signal strength threshold to determine whether the signal strength of the second received signal is greater than the preset signal strength threshold.
In some embodiments, the switching module 202 is configured to perform the following steps:
if the signal intensity of the first received signal is greater than the preset signal intensity threshold value, switching a switch from a first state to a second state, wherein the switch is connected with a radio frequency signal source of the testing machine and a radio frequency antenna of the testing machine in the first state, and the switch is connected with an external radio frequency signal source and the radio frequency antenna of the testing machine in the second state.
The test board in the shielding chamber can be provided with a change-over switch, or the change-over switch can be arranged in the test machine. The diverter switch may be a single pole double throw switch. The switch may be controlled by the test equipment.
The switch has a first state and a second state. In a first state, the switch switches on a radio frequency signal source of the tester and a radio frequency antenna of the tester. And in a second state, the change-over switch is connected with an external radio frequency signal source and the radio frequency antenna of the tester.
When the first determining module 201 determines that the signal strength of the first received signal is greater than the preset signal strength threshold, the switching module 202 switches the switch from the first state to the second state, so that the testing machine disconnects its own rf signal source and connects an external rf signal source.
In some embodiments, the determining module 204 is further configured to perform the following steps:
and if the signal strength of the second received signal is greater than the preset signal strength threshold, determining the antenna end of the tester as a stray source of radiation stray.
After the second determining module 203 determines whether the signal strength of the second received signal is greater than the preset signal strength threshold, if the signal strength of the second received signal is greater than the preset signal strength threshold, it indicates that the stray radiation index of the tester still does not meet the standard after the radio frequency signal source is switched. That is, when the radio frequency signal source of the testing machine transmits a radio frequency signal, the radiation stray index of the testing machine does not meet the standard, and when the radio frequency signal source transmits a radio frequency signal, the radiation stray index of the testing machine still does not meet the standard.
Therefore, the stray source of the radiation stray of the tester can eliminate the radio frequency signal source of the tester. At this time, the determination module 204 determines the antenna end of the tester as a spurious source of the radiated spurs. The antenna end comprises a radio frequency antenna of the testing machine and electronic devices arranged around the radio frequency antenna, such as a camera, a distance sensor, a receiver and the like.
In specific implementation, the modules may be implemented as independent entities, or may be combined arbitrarily and implemented as one or several entities.
As can be seen from the above, in the radiated spurious response testing apparatus 200 provided in the embodiment of the present application, the first determining module 201 controls the testing machine to transmit the radio frequency signal at the preset transmitting power, and determines whether the signal strength of the acquired first received signal is greater than the preset signal strength threshold; when the signal intensity of the first received signal is greater than the preset signal intensity threshold, the switching module 202 switches off the radio frequency signal source of the testing machine and switches on the testing machine to an external radio frequency signal source; the second judging module 203 controls the testing machine to transmit the radio frequency signal at the preset transmitting power, and judges whether the signal intensity of the acquired second receiving signal is greater than the preset signal intensity threshold value; if the signal strength of the second received signal is less than or equal to the preset signal strength threshold, the determining module 204 determines the radio frequency signal source of the tester as a stray source of radiation stray. When the radiation stray index of the testing machine does not meet the standard, the radiation stray testing device can switch the radio frequency signal source of the testing machine into an external radio frequency signal source for testing, so that whether the radiation stray source is the radio frequency signal source of the testing machine or not can be quickly determined, and the radiation stray source in the testing machine can be quickly determined.
The embodiment of the application also provides a test device. The testing device may be a Personal Computer (PC) or the like. As shown in fig. 9, the test apparatus 300 includes a processor 301 and a memory 302. The processor 301 is electrically connected to the memory 302.
The processor 301 is a control center of the test apparatus 300, connects various parts of the entire test apparatus 300 using various interfaces and lines, performs various functions of the test apparatus and processes data by running or calling a computer program stored in the memory 302, and calling data stored in the memory 302, thereby performing overall monitoring of the test apparatus 300.
In this embodiment, the processor 301 in the test device 300 loads instructions corresponding to one or more processes of the computer program into the memory 302, and the processor 301 executes the computer program stored in the memory 302 according to the following steps, so as to implement various functions:
controlling a testing machine to transmit a radio frequency signal at a preset transmitting power, and judging whether the signal intensity of the acquired first receiving signal is greater than a preset signal intensity threshold value or not;
if the signal intensity of the first received signal is greater than the preset signal intensity threshold, switching off a radio frequency signal source of the testing machine, and switching on the testing machine to an external radio frequency signal source;
controlling the tester to transmit radio frequency signals at the preset transmitting power, and judging whether the signal intensity of the acquired second receiving signal is greater than the preset signal intensity threshold value;
and if the signal intensity of the second received signal is less than or equal to the preset signal intensity threshold, determining a radio frequency signal source of the tester as a stray source of radiation stray.
In some embodiments, when controlling the tester to transmit the radio frequency signal at a preset transmission power and determining whether the signal strength of the acquired first received signal is greater than a preset signal strength threshold, the processor 301 performs the following steps:
controlling a tester to transmit a radio frequency signal at a preset transmitting power;
setting the distance between a receiving antenna and the tester as a preset distance;
acquiring a first receiving signal through the receiving antenna;
and judging whether the signal strength of the first receiving signal is greater than a preset signal strength threshold value.
In some embodiments, when controlling the tester to transmit the radio frequency signal at the preset transmission power and determining whether the signal strength of the acquired second received signal is greater than the preset signal strength threshold, the processor 301 performs the following steps:
controlling the tester to transmit radio frequency signals at the preset transmitting power;
setting the distance between the receiving antenna and the tester as the preset distance;
acquiring a second receiving signal through the receiving antenna;
and judging whether the signal strength of the second receiving signal is greater than the preset signal strength threshold value.
In some embodiments, when the radio frequency signal source of the tester is turned off and the tester is turned on by an external radio frequency signal source, the processor 301 performs the following steps:
and switching a switch from a first state to a second state, wherein the switch is connected with a radio frequency signal source of the testing machine and a radio frequency antenna of the testing machine in the first state, and the switch is connected with an external radio frequency signal source and the radio frequency antenna of the testing machine in the second state.
In some embodiments, after determining the radio frequency signal source of the testing machine as a stray source of the radiated spurs if the signal strength of the second received signal is less than or equal to the preset signal strength threshold, the processor 301 further performs the following steps:
and if the signal strength of the second received signal is greater than the preset signal strength threshold, determining the antenna end of the tester as a stray source of radiation stray.
In some embodiments, as shown in fig. 10, the test apparatus 300 further comprises: a control circuit 303, a display 304, an input unit 305, and a power supply 306. The processor 301 is electrically connected to the control circuit 303, the display screen 304, the input unit 305, and the power source 306.
The control circuit 303 is used to control the tester and to control the position of the receiving antenna in the shielded room. For example, the control circuit 303 may be used to control the tester to switch on an external rf signal source.
The display screen 303 is used for displaying information input by a user and information acquired in a test process. For example, the display screen 303 may be used to display the signal strength received by the receiving antenna.
The input unit 305 may be used to receive numbers, character information, etc. input by a user, and to generate a keyboard, mouse, joystick, optical or trackball signal input, etc. related to user settings and function control.
The power supply 306 is used to power the various components of the test apparatus 300. In some embodiments, the power supply 306 may be logically connected to the processor 301 of the test device 300 through a power management system, such that power consumption management, etc. is performed through the power management system.
As can be seen from the above, an embodiment of the present application provides a test device, where the test device performs the following steps: controlling a testing machine to transmit a radio frequency signal at a preset transmitting power, and judging whether the signal intensity of the acquired first receiving signal is greater than a preset signal intensity threshold value or not; if the signal strength of the first received signal is greater than
If the preset signal intensity threshold value is met, switching off a radio frequency signal source of the testing machine, and switching on the testing machine to an external radio frequency signal source; controlling the tester to transmit radio frequency signals at the preset transmitting power, and judging whether the signal intensity of the acquired second receiving signal is greater than the preset signal intensity threshold value; and if the signal intensity of the second received signal is less than or equal to the preset signal intensity threshold, determining a radio frequency signal source of the tester as a stray source of radiation stray. When the radiation stray index of the testing machine does not meet the standard, the testing equipment can switch the radio frequency signal source of the testing machine into an external radio frequency signal source for testing, so that whether the radiation stray source is the radio frequency signal source of the testing machine or not can be quickly determined, and the radiation stray source in the testing machine can be quickly determined.
The present application further provides a storage medium, where a computer program is stored, and when the computer program runs on a computer, the computer executes the radiation stray test method according to any one of the above embodiments.
It should be noted that, all or part of the steps in the methods of the above embodiments may be implemented by hardware related to instructions of a computer program, which may be stored in a computer-readable storage medium, which may include, but is not limited to: a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic or optical disk, or the like.
The radiation stray test method, the device, the storage medium and the test equipment provided by the embodiment of the application are described in detail above. The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of 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 (12)
1. A radiation stray test method is applied to a test system, and is characterized in that the test system comprises a tester, and the radiation stray test method comprises the following steps:
controlling the testing machine to transmit radio frequency signals at a preset transmitting power, and judging whether the signal intensity of the acquired first receiving signal is greater than a preset signal intensity threshold value or not;
if the signal intensity of the first received signal is greater than the preset signal intensity threshold, switching off a radio frequency signal source of the testing machine, and switching on the testing machine to an external radio frequency signal source;
controlling the tester to transmit radio frequency signals at the preset transmitting power, and judging whether the signal intensity of the acquired second receiving signal is greater than the preset signal intensity threshold value;
and if the signal intensity of the second received signal is less than or equal to the preset signal intensity threshold, determining a radio frequency signal source of the tester as a stray source of radiation stray.
2. The method as claimed in claim 1, wherein the controlling the tester to transmit the rf signal at a predetermined transmission power and determine whether the signal strength of the acquired first received signal is greater than a predetermined signal strength threshold comprises:
controlling a tester to transmit a radio frequency signal at a preset transmitting power;
setting the distance between a receiving antenna and the tester as a preset distance;
acquiring a first receiving signal through the receiving antenna;
and judging whether the signal strength of the first receiving signal is greater than a preset signal strength threshold value.
3. The method as claimed in claim 2, wherein the controlling the tester to transmit the rf signal at the predetermined transmission power and determining whether the signal strength of the obtained second received signal is greater than the predetermined signal strength threshold comprises:
controlling the tester to transmit radio frequency signals at the preset transmitting power;
setting the distance between the receiving antenna and the tester as the preset distance;
acquiring a second receiving signal through the receiving antenna;
and judging whether the signal strength of the second receiving signal is greater than the preset signal strength threshold value.
4. The method as claimed in any one of claims 1 to 3, wherein the step of turning off the RF signal source of the tester and turning on the tester by an external RF signal source comprises:
and switching a switch from a first state to a second state, wherein the switch is connected with a radio frequency signal source of the testing machine and a radio frequency antenna of the testing machine in the first state, and the switch is connected with an external radio frequency signal source and the radio frequency antenna of the testing machine in the second state.
5. The radiated spurious test method of any one of claims 1 to 3, further comprising:
and if the signal strength of the second received signal is greater than the preset signal strength threshold, determining the antenna end of the tester as a stray source of radiation stray.
6. A radiated spurious testing apparatus applied to a testing system, wherein the testing system includes a testing machine, the radiated spurious testing apparatus comprising:
the first judgment module is used for controlling the testing machine to transmit radio frequency signals at a preset transmitting power and judging whether the signal intensity of the acquired first receiving signal is greater than a preset signal intensity threshold value or not;
the switching module is used for disconnecting the radio frequency signal source of the testing machine and connecting the testing machine with an external radio frequency signal source if the signal intensity of the first received signal is greater than the preset signal intensity threshold value;
the second judgment module is used for controlling the testing machine to transmit the radio frequency signal at the preset transmitting power and judging whether the signal intensity of the acquired second receiving signal is greater than the preset signal intensity threshold value or not;
and the determining module is used for determining the radio frequency signal source of the tester as a stray source of radiation stray if the signal intensity of the second received signal is less than or equal to the preset signal intensity threshold.
7. The stray radiation testing apparatus of claim 6, wherein the first determining module is configured to:
controlling a tester to transmit a radio frequency signal at a preset transmitting power;
setting the distance between a receiving antenna and the tester as a preset distance;
acquiring a first receiving signal through the receiving antenna;
and judging whether the signal strength of the first receiving signal is greater than a preset signal strength threshold value.
8. The radiated stray test apparatus according to claim 7, wherein the second determination module is configured to:
controlling the tester to transmit radio frequency signals at the preset transmitting power;
setting the distance between the receiving antenna and the tester as the preset distance;
acquiring a second receiving signal through the receiving antenna;
and judging whether the signal strength of the second receiving signal is greater than the preset signal strength threshold value.
9. The radiated spurious test device of any one of claims 6 to 8, wherein the switching module is configured to:
and switching a switch from a first state to a second state, wherein the switch is connected with a radio frequency signal source of the testing machine and a radio frequency antenna of the testing machine in the first state, and the switch is connected with an external radio frequency signal source and the radio frequency antenna of the testing machine in the second state.
10. The radiated spurious test device of any one of claims 6 to 8, wherein the determining module is further configured to:
and if the signal strength of the second received signal is greater than the preset signal strength threshold, determining the antenna end of the tester as a stray source of radiation stray.
11. A computer-readable storage medium, in which a computer program is stored which, when run on a computer, causes the computer to perform the method of radiation stray testing according to any one of claims 1 to 5.
12. A test system is characterized by comprising test equipment and a tester, wherein the test equipment is electrically connected with the tester;
the test device comprises a processor and a memory, the memory having stored therein a computer program, the processor being adapted to perform the radiated spurious test method of any one of claims 1 to 5 by invoking the computer program stored in the memory.
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| KR101070762B1 (en) * | 2010-08-03 | 2011-10-07 | 박찬호 | System and method for measuring radiated performance of a mobile phone |
| DE102010034521B4 (en) * | 2010-08-16 | 2018-08-16 | Atmel Corp. | Receiver and method for receiving by a receiver of a node in a radio network |
| CN102436588A (en) * | 2011-11-15 | 2012-05-02 | 哈尔滨工程大学 | Radiation source identification method |
| CN105717374B (en) * | 2016-01-27 | 2019-03-22 | Oppo广东移动通信有限公司 | The exceeded problem source localization method of radiation dispersion |
| CN205864433U (en) * | 2016-06-23 | 2017-01-04 | 北京中科国技信息系统有限公司 | Scramble testing system |
| CN106330348A (en) * | 2016-08-18 | 2017-01-11 | 深圳天祥质量技术服务有限公司 | Method and device for testing stray radiant power of wireless product |
| CN106468741B (en) * | 2016-09-07 | 2020-02-11 | 深圳天祥质量技术服务有限公司 | Radiation stray automatic testing method and device |
| CN107529692B (en) * | 2017-01-24 | 2020-09-22 | 中国人民解放军电子工程学院 | Communication radiation source individual identification method based on related entropy sparse representation |
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