CN113406475A - Multi-microwave-channel radio frequency characteristic consistency testing device, method, equipment and medium - Google Patents
Multi-microwave-channel radio frequency characteristic consistency testing device, method, equipment and medium Download PDFInfo
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- CN113406475A CN113406475A CN202110642451.5A CN202110642451A CN113406475A CN 113406475 A CN113406475 A CN 113406475A CN 202110642451 A CN202110642451 A CN 202110642451A CN 113406475 A CN113406475 A CN 113406475A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2822—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere of microwave or radiofrequency circuits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/317—Testing of digital circuits
- G01R31/31708—Analysis of signal quality
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/317—Testing of digital circuits
- G01R31/31708—Analysis of signal quality
- G01R31/3171—BER [Bit Error Rate] test
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Abstract
The invention discloses a device, a method, equipment and a medium for testing consistency of radio frequency characteristics of multiple microwave channels, wherein the device comprises a control center, a radio frequency channel change-over switch, excitation signal generating equipment and measuring signal collecting equipment, wherein the radio frequency channel change-over switch, the excitation signal generating equipment and the measuring signal collecting equipment are connected with the control center; the radio frequency channel change-over switch is connected with the excitation signal generating equipment and the measuring signal collecting equipment through radio frequency signals. The invention adopts an automatic method and a device, reduces the influence of radio frequency characteristic errors caused by changing the state of the radio frequency cable due to frequent connection of the radio frequency cable, reduces errors possibly caused by frequent connection of the radio frequency cable by testing personnel, improves the testing efficiency, increases the testing accuracy and shortens the testing work period.
Description
Technical Field
The invention belongs to the technical field of radio frequency testing, and particularly relates to a device, a method, equipment and a medium for testing consistency of radio frequency characteristics of multiple microwave channels.
Background
With the rapid development of electronic technology, electronic equipment is more complex, and the number of microwave channels is more and more.
If the difference of the radio frequency characteristics between the microwave channels exceeds a certain range, the overall important indexes of the electronic equipment, such as accuracy, resolution and the like, can be directly influenced. Very stringent requirements are placed on the consistency and stability of the radio frequency characteristics of the multiple microwave channels of the electronic device. Therefore, in the debugging process of the electronic device, the radio frequency characteristics of each channel need to be tested, and the parameters of each microwave channel are adjusted and optimized according to the difference of the test data of each channel, so that the consistency of the radio frequency characteristics of the microwave channels meets the requirements, and the realization of the overall function and performance of the electronic device is ensured.
Generally, when testing the consistency of the radio frequency characteristics of microwave channels of electronic equipment, instruments, radio frequency cables, pluggable radio frequency connectors, and the like are used for testing, excitation radio frequency signals are input to each related microwave channel of the electronic equipment channel by channel, then the radio frequency characteristic data of the signals of the corresponding output ends are tested, and after the test is finished, difference comparison calculation is performed. In order to reduce the time for the personnel to walk back and forth, 3 testing personnel are generally needed to be matched and completed, 1 person is responsible for the radio frequency cable connection at the input end of the microwave channel, 1 person is responsible for the radio frequency cable connection at the output end of the microwave channel, and 1 person is responsible for operating the instrument to read data and perform arrangement and recording. The disadvantages of this approach are:
1) when the test is carried out channel by channel, the radio frequency cables of the input channel and the output channel need to be replaced repeatedly, the radio frequency cables are disconnected and connected frequently, and the working period is long. Particularly, the test time spent by electronic equipment with a large number of microwave channels influences the planned progress of a project;
2) when the channel-by-channel test is carried out, the radio frequency cables of the input channel and the output channel need to be replaced repeatedly, the radio frequency cables are disconnected and connected frequently, errors or unstable factors such as radio frequency characteristic parameter changes caused by poor contact or radio frequency cable path changes exist, the accuracy and consistency of the measurement result are influenced, and the reliability of the test result is reduced;
3) the requirement for human resources is large, and generally 3 testers are needed to complete the test. If the test is finished by only 1 person, the tester can run waves at the input end, the output end and the instrument of the microwave channel, and the time period required by the test is more unacceptable;
therefore, a method and an apparatus for automatically testing the consistency of the radio frequency characteristics of multiple microwave channels are needed to shorten the working period, reduce the labor cost, and improve the accuracy and consistency of the test results.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device, a method, equipment and a medium for testing the consistency of radio frequency characteristics of multiple microwave channels.
The purpose of the invention is realized by the following technical scheme:
many microwave channel radio frequency characteristic conformance testing device includes: the device comprises a control center, a radio frequency channel change-over switch, an excitation signal generating device and a measuring signal collecting device, wherein the radio frequency channel change-over switch, the excitation signal generating device and the measuring signal collecting device are connected with the control center;
the radio frequency channel change-over switch is connected with the excitation signal generating equipment and the measuring signal collecting equipment through radio frequency signals.
Further, the radio frequency channel change-over switch comprises a radio frequency channel n-to-1 switch and a radio frequency channel 1-to-n switch; wherein the content of the first and second substances,
the radio frequency channel 1-to-n switch receives and responds to an instruction sent by a control center through a control cable, and completes the combination switching from the radio frequency channel n to the radio frequency channel 1 according to the instruction;
the radio frequency channel n-to-1 switch receives and responds to an instruction sent by a control center through a control cable, and completes the combination switching of the radio frequency channels 1 to n according to the instruction;
n is more than or equal to the number of the measured microwave channels.
Further, the computer is connected with the radio frequency channel change-over switch, the excitation signal generating device and the measuring signal collecting device through one or more of a standard bus, a control bus or a discrete line.
On the other hand, the invention also provides a multi-microwave-channel radio frequency characteristic consistency testing method, which comprises the following steps:
s1: initializing a device needing program control;
s2: controlling a radio frequency channel change-over switch to select an input channel for exciting a radio frequency signal and a radio frequency signal channel needing to measure a radio frequency characteristic value;
s3: generating an excitation radio frequency signal and scanning according to a preset frequency value;
s4: reading the measurement data, and recording the radio frequency characteristic values of the channel when different frequency values of the radio frequency signal are excited according to the channel number;
s5: judging whether the radio frequency characteristic value is abnormal, if so, sending an alarm prompt, and if not, keeping the radio frequency characteristic test data;
s6: selecting the next testing channel to execute the steps S1-S5 until all the channels to be tested are tested;
s7: and comparing the radio frequency characteristic values of the channels when the radio frequency signals are excited at the same frequency point to obtain radio frequency characteristic difference data and storing the radio frequency characteristic difference data.
Furthermore, the device needing program control comprises a radio frequency channel change-over switch, an excitation signal generating device and a measuring signal collecting device.
Further, the radio frequency channel change-over switch comprises a radio frequency channel n-to-1 switch and a radio frequency channel 1-to-n switch, wherein n is more than or equal to the number of the measured microwave channels.
Further, when the channel radio frequency characteristic value is recorded, the radio frequency characteristic value introduced by the radio frequency cable except the measured object is eliminated through calculation.
Further, the radio frequency characteristic value introduced by the radio frequency cable except the measured object is measured in advance.
In another aspect, the present application provides a computer device, which includes a processor and a memory, where the memory stores a computer program, and the computer program is loaded by the processor and executed to implement any one of the above-mentioned methods for testing consistency of radio frequency characteristics of multiple microwave channels.
In another aspect, the present application provides a computer-readable storage medium, in which a computer program is stored, and the computer program is loaded and executed by a processor to implement any one of the above-mentioned methods for consistency testing of radio frequency characteristics of multiple microwave channels.
The invention has the beneficial effects that:
by the same testing device, the testing of the radio frequency characteristics of the plurality of microwave channels is completed without repeatedly replacing the radio frequency cables of the input channel and the output channel and frequently disconnecting and connecting the radio frequency cables, and the consistency of the multi-microwave-channel radio frequency characteristic testing is greatly improved. Meanwhile, the influence of radio frequency characteristic errors caused by the fact that the state of the radio frequency cable is changed due to the fact that the radio frequency cable is connected frequently is reduced, errors which possibly occur when testing personnel connect the radio frequency cable frequently are reduced, testing efficiency is improved, testing accuracy is improved, and the period of testing work is shortened.
Drawings
Fig. 1 is a schematic structural diagram of a multi-microwave-channel radio frequency characteristic consistency testing device provided in embodiment 1 of the present invention;
fig. 2 is a flow chart of a method for testing consistency of radio frequency characteristics of multiple microwave channels according to embodiment 2 of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that, in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments.
Thus, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, is a schematic structural diagram of the multi-microwave-channel radio frequency characteristic consistency testing device provided in this embodiment, and the device specifically includes the following components and connection relations:
the control center is connected with the radio frequency channel change-over switch, the excitation signal generating equipment and the measurement signal collecting equipment through one or more of a standard bus, a control bus or a discrete line. The radio frequency channel change-over switch comprises a radio frequency channel n-to-1 switch and a radio frequency channel 1-to-n switch. The radio frequency channel 1-to-n switch receives and responds to an instruction sent by the control center through the control cable, and completes the combined switching of the radio frequency channels n to 1 according to the instruction. The switch of the radio frequency channel n to 1 receives and responds to the command sent by the control center through the control cable, and completes the combined switching of the radio frequency channels 1 to n according to the command. The radio frequency channel change-over switch is connected with the excitation signal generating equipment and the measuring signal collecting equipment through radio frequency signals. The object to be tested, namely each microwave channel to be tested, is connected with the radio frequency channel n-to-1 switch and the radio frequency channel 1-to-n switch through radio frequency signals. n is more than or equal to the number of the tested microwave channels, so that the test of the radio frequency characteristics of the plurality of tested microwave channels can be completed without repeatedly replacing the radio frequency cables of the input channel and the output channel and frequently disconnecting and connecting the radio frequency cables.
In fig. 1, the dashed lines indicate control signal lines for instruments and equipment. The dotted lines are control lines, which may be one or more of standard buses such as LAN, GPIB, USB, RS232, etc., and may have custom control buses or discrete lines. The solid line in fig. 1 indicates the transmission direction of the radio frequency signal.
The multi-microwave-channel radio frequency characteristic consistency testing device provided by the embodiment can be used for testing the radio frequency characteristics of a plurality of microwave channels without repeatedly replacing the radio frequency cables of the input channel and the output channel and frequently disconnecting and connecting the radio frequency cables, so that the consistency of the multi-microwave-channel radio frequency characteristic testing is greatly improved. Meanwhile, the influence of radio frequency characteristic errors caused by the fact that the state of the radio frequency cable is changed due to the fact that the radio frequency cable is connected frequently is reduced, errors which possibly occur when testing personnel connect the radio frequency cable frequently are reduced, testing efficiency is improved, testing accuracy is improved, and testing work period is shortened.
Example 2
As shown in fig. 2, is a flow chart of a method for testing consistency of radio frequency characteristics of multiple microwave channels according to this embodiment, and the method specifically includes the following steps:
the method comprises the following steps: the computer sends out command to each instrument and the device needing program control through the control cable and initializes the instruments and the device. The instrument and the device needing program control particularly comprise excitation signal generating equipment, measuring signal acquisition equipment, a radio frequency channel n-to-1 switch and a radio frequency channel 1-to-n switch.
Step two: the computer selects an input channel of the excitation radio frequency signal by controlling the radio frequency n to 1 switch, and selects a radio frequency signal channel needing to measure the radio frequency characteristic value by controlling the radio frequency 1 to n switch.
Step three: the computer controlled instrument generates an excitation radio frequency signal and scans at a desired frequency value.
Step four: and the computer reads the measurement data of the instrument and records the radio frequency characteristic values of the channel when different frequency values of the excitation radio frequency signal are obtained according to the channel number. If necessary, the inherent radio frequency characteristics of the radio frequency cables can be measured in advance for the radio frequency characteristic values introduced by the radio frequency cables except the object to be measured, normalization processing is carried out during calculation, and errors caused by the inherent radio frequency characteristic values are eliminated, so that the accuracy of the recorded channel radio frequency characteristic values is ensured.
Step five: the computer judges whether the radio frequency characteristic value is abnormal or not so as to judge whether the radio frequency cable connection is not good or not, if so, an alarm prompt is sent out to terminate the test. And if no error exists, the radio frequency characteristic data is saved. The determination of whether the rf characteristic value is abnormal includes, but is not limited to, determining whether the gain value is smaller than the gain index requirement of the channel. Besides the gain value, whether the radio frequency characteristic of the microwave channel is abnormal can be judged according to whether the parameters such as the phase position, the standing wave and the like reach the standard.
Step six: and the computer selects the next channel according to the requirement until all the channels needing to be tested are tested. The test device can test the radio frequency characteristics of a plurality of microwave channels without repeatedly replacing the radio frequency cables of the input channel and the output channel and frequently disconnecting and connecting the radio frequency cables, reduces the influence of radio frequency characteristic errors caused by the change of the state of the radio frequency cables due to frequent connection of the radio frequency cables, and reduces errors which may occur when testers frequently connect the radio frequency cables.
Step seven: after all the channels to be tested are tested, the computer compares the radio frequency characteristic values of all the channels at the same frequency point of the excitation radio frequency signals to obtain radio frequency characteristic difference data and stores the radio frequency characteristic difference data, and then the test of the consistency of the radio frequency characteristics of the multiple microwave channels is completed.
The beneficial effects of the method for testing consistency of radio frequency characteristics of multiple microwave channels provided in this embodiment are detailed in the foregoing embodiments, and are not described herein again.
Example 3
The preferred embodiment provides a computer device, which can implement the steps in any embodiment of the method for testing consistency of radio frequency characteristics of multiple microwave channels provided in the embodiment of the present application, and therefore, the beneficial effects of the method for testing consistency of radio frequency characteristics of multiple microwave channels provided in the embodiment of the present application can be achieved, which are detailed in the foregoing embodiments and will not be described herein again.
Example 4
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor. To this end, an embodiment of the present invention provides a storage medium, in which a plurality of instructions are stored, and the instructions can be loaded by a processor to execute the steps of any embodiment of the method for testing consistency of radio frequency characteristics of multiple microwave channels provided by the embodiment of the present invention.
Wherein the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
Since the instructions stored in the storage medium may execute the steps in any multi-microwave-channel radio frequency feature consistency test method provided in the embodiment of the present invention, the beneficial effects that can be achieved by any multi-microwave-channel radio frequency feature consistency test method provided in the embodiment of the present invention may be achieved, which are detailed in the foregoing embodiments and will not be described herein again.
The foregoing basic embodiments of the invention and their various further alternatives can be freely combined to form multiple embodiments, all of which are contemplated and claimed herein. In the scheme of the invention, each selection example can be combined with any other basic example and selection example at will. Numerous combinations will be known to those skilled in the art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Many microwave channel radio frequency characteristic conformance testing device, its characterized in that includes: the device comprises a control center, a radio frequency channel change-over switch, an excitation signal generating device and a measuring signal collecting device, wherein the radio frequency channel change-over switch, the excitation signal generating device and the measuring signal collecting device are connected with the control center;
the radio frequency channel change-over switch is connected with the excitation signal generating equipment and the measuring signal collecting equipment through radio frequency signals.
2. The multi-microwave channel radio frequency signature conformance testing device of claim 1, wherein the radio frequency channel switches comprise a radio frequency channel n-to-1 switch and a radio frequency channel 1-to-n switch; wherein the content of the first and second substances,
the radio frequency channel 1-to-n switch receives and responds to an instruction sent by a control center through a control cable, and completes the combination switching from the radio frequency channel n to the radio frequency channel 1 according to the instruction;
the radio frequency channel n-to-1 switch receives and responds to an instruction sent by a control center through a control cable, and completes the combination switching of the radio frequency channels 1 to n according to the instruction;
n is more than or equal to the number of the measured microwave channels.
3. The apparatus according to claim 1, wherein the computer is connected to the rf channel switch, the excitation signal generating device and the measurement signal collecting device via one or more of a standardized bus, a control bus or a discrete line.
4. The method for testing the consistency of the radio frequency characteristics of the multiple microwave channels is characterized by comprising the following steps:
s1: initializing a device needing program control;
s2: controlling a radio frequency channel change-over switch to select an input channel for exciting a radio frequency signal and a radio frequency signal channel needing to measure a radio frequency characteristic value;
s3: generating an excitation radio frequency signal and scanning according to a preset frequency value;
s4: reading the measurement data, and recording the radio frequency characteristic values of the channel when different frequency values of the radio frequency signal are excited according to the channel number;
s5: judging whether the radio frequency characteristic value is abnormal, if so, sending an alarm prompt, and if not, keeping the radio frequency characteristic test data;
s6: selecting the next testing channel to execute the steps S1-S5 until all the channels to be tested are tested;
s7: and comparing the radio frequency characteristic values of the channels when the radio frequency signals are excited at the same frequency point to obtain radio frequency characteristic difference data and storing the radio frequency characteristic difference data.
5. The method according to claim 4, wherein the devices requiring program control comprise a RF channel switch, an excitation signal generating device and a measurement signal collecting device.
6. The method according to claim 5, wherein the RF channel switches comprise an RF channel n-to-1 switch and an RF channel 1-to-n switch, where n is greater than or equal to the number of the tested microwave channels.
7. The method according to claim 4, wherein the radio frequency characteristic values introduced by the radio frequency cables other than the object to be tested are eliminated by calculation when the channel radio frequency characteristic values are recorded.
8. The method according to claim 7, wherein the radio frequency characteristic values introduced by the radio frequency cables other than the object to be tested are measured in advance.
9. A computer device, characterized in that the computer device comprises a processor and a memory, in which a computer program is stored, which computer program is loaded and executed by the processor to implement the multi-microwave-channel radio frequency signature conformance testing method according to any one of claims 4 to 8.
10. A computer-readable storage medium, in which a computer program is stored, which is loaded and executed by a processor to implement the method for consistency testing of radio frequency characteristics of multiple microwave channels according to any one of claims 4 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110642451.5A CN113406475A (en) | 2021-06-09 | 2021-06-09 | Multi-microwave-channel radio frequency characteristic consistency testing device, method, equipment and medium |
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| CN202110642451.5A CN113406475A (en) | 2021-06-09 | 2021-06-09 | Multi-microwave-channel radio frequency characteristic consistency testing device, method, equipment and medium |
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| CN114205010A (en) * | 2021-11-17 | 2022-03-18 | 中科可控信息产业有限公司 | Signal testing apparatus, system, method and storage medium |
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Application publication date: 20210917 |