CN104917574A - Self-calibration method of wireless communication test system for short-distance electric communication - Google Patents
Self-calibration method of wireless communication test system for short-distance electric communication Download PDFInfo
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- CN104917574A CN104917574A CN201510202381.6A CN201510202381A CN104917574A CN 104917574 A CN104917574 A CN 104917574A CN 201510202381 A CN201510202381 A CN 201510202381A CN 104917574 A CN104917574 A CN 104917574A
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Abstract
The invention discloses a self-calibration method of a wireless communication test system for short-distance electric communication. The wireless communication test system comprises a first multifunctional electromagnetic wave small room, a first comprehensive test instrument and a first industrial control computer; the method comprises the following steps that a standard weight module is placed at a position where a tested wireless communication module is placed in the first multifunctional electromagnetic wave small room, the standard weight module is a standard wireless communication module, and a transmitted radio-frequency signal has standard transmitting power; the standard weight module is connected with the first comprehensive test instrument to transmit a radio-frequency signal; received signal power measured by the first comprehensive test instrument is compared with standard transmitting power of the standard weight module to obtain attenuation of a coupling path between the standard weight module and the first comprehensive test instrument; and compensation is performed on a radio-frequency signal transmitted by the coupling path between the standard weight module and the first comprehensive test instrument according to the attenuation. Through adoption of the method, reliability and accuracy of a wireless communication test can be improved.
Description
Technical field
The present invention relates to technical field of electric power communication, particularly relate to short distance power communication radio communication detecting system method for self-calibrating.
Background technology
Wireless communication module is used in the power user power consumption information acquisition system of national grid more and more, along with Centroid and from multi-node wireless communication module use more and more extensive, wireless communication module carries increasing data volume and critical role.In the process that wireless communication module performance is detected, need radiofrequency signal to transmit between wireless communication module and tester, the decline of radiofrequency signal in transmitting procedure, will be related to.If effectively do not calibrate fading signal, distortion that test result is serious and inaccurate will be caused, thus the object of test can not be reached.Therefore, be necessary to study the method for short distance power communication radio communication detecting system calibration, to realize reliability and the accuracy of radio communication detecting system test performance.But, in prior art, effective solution is not yet proposed.
Summary of the invention
The embodiment of the present invention provides a kind of short distance power communication radio communication detecting system method for self-calibrating, in order to improve reliability and the accuracy of radio communication test, this radio communication detecting system comprises the first multifunctional electromagnetic wave cell, the first comprehensive tester and the first industrial computer; First multifunctional electromagnetic wave cell is used for laying tested wireless communication module to isolate external environment impact; Tested wireless communication module in first multifunctional electromagnetic wave cell is connected with the first comprehensive tester; First comprehensive tester is connected with the first industrial computer; First comprehensive tester is used for, by mutual with tested wireless communication module, obtain test data and being supplied to the first industrial computer; The test data that first industrial computer is used for providing according to the first comprehensive tester obtains test result;
This method for self-calibrating comprises:
Standard test weight module is positioned over the position of laying tested wireless communication module in the first multifunctional electromagnetic wave cell, described standard test weight module is standard wireless communication module, and the radiofrequency signal of launching has standard emission power;
Standard test weight module is connected with the first comprehensive tester, with transmitting radio frequency signal;
The received signal power record the first comprehensive tester and the standard emission power of standard test weight module contrast, and obtain the decay of coupling path between standard test weight module and the first comprehensive tester;
Decay according to obtaining compensates the radiofrequency signal that coupling path between standard test weight module and the first comprehensive tester transmits.
In an embodiment, standard test weight module is connected with the first comprehensive tester, comprises: standard test weight module is connected with the first comprehensive tester with radio frequency line by dull and stereotyped coupled antenna.
In an embodiment, described radio communication detecting system also comprises: electric power system, is connected with the tested wireless communication module in the first multifunctional electromagnetic wave cell, for powering to tested wireless communication module.
In an embodiment, this method for self-calibrating also comprises:
Described radio communication detecting system is utilized to carry out the test of transmitting power, frequency error and stray parameter to tested wireless communication module; The wireless interconnected interworking module network test system of micropower is utilized to carry out the test of transmitting power, frequency error and stray parameter; The test result of test result to the wireless interconnected interworking module network test system of described micropower according to described radio communication detecting system is calibrated;
Wherein, the wireless interconnected interworking module network test system of described micropower comprises the second multifunctional electromagnetic wave cell, the second industrial computer, intercepts unit, the second comprehensive tester and standard agreement signal source; Wherein, the second multifunctional electromagnetic wave cell, for laying tested wireless communication module to isolate external environment impact; Tested wireless communication module in second multifunctional electromagnetic wave cell respectively with the second industrial computer, intercept unit and the second comprehensive tester is connected; Second industrial computer also respectively with intercept unit, the second comprehensive tester and standard agreement signal source and be connected; Second comprehensive tester is also connected with standard agreement signal source; Intercepting unit, for monitoring the interactive communication of tested wireless communication module and miscellaneous equipment, monitored data being supplied to the second industrial computer; Standard agreement signal source, under the control of the second industrial computer, to the second comprehensive tester outputting standard baseband signal; Second comprehensive tester, under the control of the second industrial computer, by mutual with tested wireless communication module, obtain test data and is supplied to the second industrial computer; Second industrial computer, for control criterion protocol signal source to the second comprehensive tester outputting standard baseband signal, and, according to intercepting monitored data that unit provides and/or the test data that the second comprehensive tester provides, obtain test result.
In an embodiment, utilize the wireless interconnected interworking module network test system of micropower to carry out the test of transmitting power, frequency error and stray parameter, comprising:
Utilize the second industrial computer to set the tested channel of tested wireless communication module, make tested wireless communication module emitting radio frequency signal;
Second comprehensive tester is set to transmitter test pattern, the second comprehensive tester is utilized to choose the radiofrequency signal of tested wireless communication module transmitting, adjust the intermediate frequency width of this radiofrequency signal, read the transmitting power of tested wireless communication module, frequency error and stray parameter.
In an embodiment, utilize the second industrial computer to set the tested channel of tested wireless communication module, make tested wireless communication module emitting radio frequency signal, comprising:
Utilize the second industrial computer to set the tested channel of tested wireless communication module, make tested wireless communication module launch do not adjust carrier radio frequency signal, or under M4 signal madulation emitting radio frequency signal.
In an embodiment, utilize described radio communication detecting system to carry out the test of transmitting power, frequency error and stray parameter to tested wireless communication module, comprising:
The first industrial computer is utilized to test front Initialize installation to the first comprehensive tester;
Control tested wireless communication module emitting radio frequency signal, and be sent to the first comprehensive tester;
The first comprehensive tester is utilized to measure transmitting power and the stray parameter of radiofrequency signal;
Utilize the first industrial computer from the transmitting power of the first comprehensive tester reading radio frequency signal and stray parameter, and calculated rate error.
The short distance power communication radio communication detecting system method for self-calibrating of the embodiment of the present invention, by calibrating radio communication detecting system coupling path, can improve reliability and the accuracy of radio communication test.In embodiment, test result calibration can also be carried out to the wireless interconnected interworking module network test system of micropower, thus improve reliability and the accuracy of radio communication test further.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the structural representation of radio communication detecting system in the embodiment of the present invention;
Fig. 2 is the flow chart of embodiment of the present invention short-distance and medium-distance power communication radio communication detecting system method for self-calibrating;
Fig. 3 is the schematic diagram of the wireless interconnected interworking module network test system of micropower in the embodiment of the present invention;
Fig. 4 is the test connection layout of radio communication detecting system in the embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the embodiment of the present invention is described in further details.At this, schematic description and description of the present invention is for explaining the present invention, but not as a limitation of the invention.
In order to improve reliability and the accuracy of radio communication test, the embodiment of the present invention provides a kind of short distance power communication radio communication detecting system method for self-calibrating, in the method, calibrates for the coupling path in radio communication detecting system.Fig. 1 is the structural representation of radio communication detecting system in the embodiment of the present invention.As shown in Figure 1, this radio communication detecting system can comprise:
First multifunctional electromagnetic wave cell, the first comprehensive tester and the first industrial computer; First multifunctional electromagnetic wave cell is used for laying tested wireless communication module to isolate external environment impact; Tested wireless communication module in first multifunctional electromagnetic wave cell is connected with the first comprehensive tester; First comprehensive tester is connected with the first industrial computer; First comprehensive tester is used for, by mutual with tested wireless communication module, obtain test data and being supplied to the first industrial computer; The test data that first industrial computer is used for providing according to the first comprehensive tester obtains test result.
Fig. 2 is the flow chart of embodiment of the present invention short-distance and medium-distance power communication radio communication detecting system method for self-calibrating.As shown in Figure 2, the method can comprise:
Step 201, standard test weight module is positioned over the position of laying tested wireless communication module in the first multifunctional electromagnetic wave cell, described standard test weight module is standard wireless communication module, and the radiofrequency signal of launching has standard emission power;
Step 202, standard test weight module to be connected with the first comprehensive tester, with transmitting radio frequency signal;
The standard emission power of step 203, the received signal power recorded by the first comprehensive tester and standard test weight module contrasts, and obtains the decay of coupling path between standard test weight module and the first comprehensive tester;
Step 204, according to obtain decay the radiofrequency signal that coupling path between standard test weight module and the first comprehensive tester transmits is compensated.
In embodiment, as shown in Figure 1, standard test weight module is connected with the first comprehensive tester, can comprises: standard test weight module is connected with the first comprehensive tester with radio frequency line by dull and stereotyped coupled antenna.In Fig. 1, radio frequency line represents with double solid line.
Again as shown in Figure 1, in embodiment, radio communication detecting system can also comprise: electric power system, is connected with the tested wireless communication module in the first multifunctional electromagnetic wave cell, for powering to tested wireless communication module.Electric power system can be single-phase or three-phase power supply system.In Fig. 1, electric power system is connected with tested wireless communication module by power line, and power line represents with single solid line.Also show the first comprehensive tester in Fig. 1 to be connected with the first industrial computer by GPIB (General-Purpose Interface Bus, general-purpose interface bus), GPIB represents with stacked three solid lines.
In embodiment, the first multifunctional electromagnetic wave cell, the first comprehensive tester, the first industrial computer and the electric power system composition standardization RF detection system in radio communication detecting system.In calibration process, standard test weight module is positioned over the position of the tested wireless communication module of the first multifunctional electromagnetic wave cell, this standard test weight module is connected with the first comprehensive tester with radio frequency line by dull and stereotyped coupled antenna, and realizes the transmission of radiofrequency signal.The received RF signal power recorded by first comprehensive tester and the standard emission power contrast of standard test weight module, can obtain the decay in coupling path, and then can compensate this decay in software, to realize the self compensation tested.
During concrete enforcement, can also to the calibration carrying out test parameter of the wireless interconnected interworking module network test system of micropower.Fig. 3 is the schematic diagram of the wireless interconnected interworking module network test system of micropower in the embodiment of the present invention.As shown in Figure 3, the wireless interconnected interworking module network test system of micropower can comprise:
Second multifunctional electromagnetic wave cell, the second industrial computer, intercept unit, the second comprehensive tester and standard agreement signal source; Wherein, the second multifunctional electromagnetic wave cell, for laying tested wireless communication module to isolate external environment impact; Tested wireless communication module in second multifunctional electromagnetic wave cell respectively with the second industrial computer, intercept unit and the second comprehensive tester is connected; Second industrial computer also respectively with intercept unit, the second comprehensive tester and standard agreement signal source and be connected; Second comprehensive tester is also connected with standard agreement signal source; Intercepting unit, for monitoring the interactive communication of tested wireless communication module and miscellaneous equipment, monitored data being supplied to the second industrial computer; Standard agreement signal source, under the control of the second industrial computer, to the second comprehensive tester outputting standard baseband signal; Second comprehensive tester, under the control of the second industrial computer, by mutual with tested wireless communication module, obtain test data and is supplied to the second industrial computer; Second industrial computer, for control criterion protocol signal source to the second comprehensive tester outputting standard baseband signal, and, according to intercepting monitored data that unit provides and/or the test data that the second comprehensive tester provides, obtain test result.
The concrete connected mode of micropower wireless interconnected interworking module network test system each several part is also show in Fig. 3.Single solid line in Fig. 3 is radio frequency line, and double solid line is RS485 bus, and three stacked solid lines represent GPIB.As shown in Figure 3, the tested wireless communication module in the second multifunctional electromagnetic wave cell by radio frequency line, respectively with intercept unit and the second comprehensive tester is connected; Tested wireless communication module in second multifunctional electromagnetic wave cell is connected with the second industrial computer by RS485 bus; Second industrial computer also by RS485 bus respectively with intercept unit and standard agreement signal source is connected; Second industrial computer is also connected with the second comprehensive tester by GPIB; Second comprehensive tester is also connected with standard agreement signal source by radio frequency line.
In embodiment, radio communication detecting system can be utilized to carry out the test of transmitting power, frequency error and stray parameter to tested wireless communication module; The wireless interconnected interworking module network test system of micropower is utilized to carry out the test of transmitting power, frequency error and stray parameter; The test result of test result to the wireless interconnected interworking module network test system of micropower according to radio communication detecting system is calibrated.
Concrete, the wireless interconnected interworking module network test system of micropower is utilized to carry out the test of transmitting power, frequency error and stray parameter, can comprise: utilize the second industrial computer to set the tested channel of tested wireless communication module, make tested wireless communication module emitting radio frequency signal; Second comprehensive tester is set to transmitter test pattern, the second comprehensive tester is utilized to choose the radiofrequency signal of tested wireless communication module transmitting, adjust the intermediate frequency width of this radiofrequency signal, read the transmitting power of tested wireless communication module, frequency error and stray parameter.Wherein, can adjust the intermediate frequency width of this radiofrequency signal to appropriate value, this value can preset.In embodiment, the second industrial computer is utilized to set the tested channel of tested wireless communication module, make tested wireless communication module emitting radio frequency signal, can comprise: utilize the second industrial computer to set the tested channel of tested wireless communication module, make tested wireless communication module launch do not adjust carrier radio frequency signal, or under M4 signal madulation emitting radio frequency signal.
Concrete, radio communication detecting system can realize the test tested wireless communication module being carried out to transmitting power, frequency error and stray parameter equally.Such as, the first industrial computer can be utilized to test front Initialize installation to the first comprehensive tester; Control tested wireless communication module emitting radio frequency signal, and be sent to the first comprehensive tester; The first comprehensive tester is utilized to measure transmitting power and the stray parameter of radiofrequency signal; Utilize the first industrial computer from the transmitting power of the first comprehensive tester reading radio frequency signal and stray parameter, and calculated rate error.In embodiment, the test connection layout of radio communication detecting system can be as shown in Figure 4.When testing front Initialize installation to the first comprehensive tester, front Initialize installation can be tested by software in the first industrial computer to the first comprehensive tester.First comprehensive tester such as can adopt the N9020 signal analyzer of Agilent company, and this signal analyzer can measure transmitting power, the stray parameter of radiofrequency signal; The reading to transmitting power, stray parameter in signal analyzer is realized by the software control of the first industrial computer, and calculated rate error, test result carried out qualification determination simultaneously and preserve test result in the first industrial computer.
After radio communication detecting system and the wireless interconnected interworking module network test system of micropower are all tested transmitting power, frequency error and stray parameter, the test result of test result to the wireless interconnected interworking module network test system of micropower according to radio communication detecting system is calibrated.Namely, two kinds of systems are all measured its radio-frequency performance parameter, test result according to radio communication detecting system realizes carrying out self calibration to the test result of the wireless interconnected interworking module network test system of micropower, and complete the relevant setting of software, radio frequency performance can be realized accurately and reliably measure through self-alignment compensation.
In sum, the short distance power communication radio communication detecting system method for self-calibrating of the embodiment of the present invention, by calibrating radio communication detecting system coupling path, can improve reliability and the accuracy of radio communication test.In embodiment, test result calibration can also be carried out to the wireless interconnected interworking module network test system of micropower, thus improve reliability and the accuracy of radio communication test further.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; the protection range be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a short distance power communication radio communication detecting system method for self-calibrating, is characterized in that, described radio communication detecting system comprises the first multifunctional electromagnetic wave cell, the first comprehensive tester and the first industrial computer; First multifunctional electromagnetic wave cell is used for laying tested wireless communication module to isolate external environment impact; Tested wireless communication module in first multifunctional electromagnetic wave cell is connected with the first comprehensive tester; First comprehensive tester is connected with the first industrial computer; First comprehensive tester is used for, by mutual with tested wireless communication module, obtain test data and being supplied to the first industrial computer; The test data that first industrial computer is used for providing according to the first comprehensive tester obtains test result;
Described method comprises:
Standard test weight module is positioned over the position of laying tested wireless communication module in the first multifunctional electromagnetic wave cell, described standard test weight module is standard wireless communication module, and the radiofrequency signal of launching has standard emission power;
Standard test weight module is connected with the first comprehensive tester, with transmitting radio frequency signal;
The received signal power record the first comprehensive tester and the standard emission power of standard test weight module contrast, and obtain the decay of coupling path between standard test weight module and the first comprehensive tester;
Decay according to obtaining compensates the radiofrequency signal that coupling path between standard test weight module and the first comprehensive tester transmits.
2. the method for claim 1, is characterized in that, standard test weight module is connected with the first comprehensive tester, comprises: standard test weight module be connected with the first comprehensive tester with radio frequency line by dull and stereotyped coupled antenna.
3. the method for claim 1, is characterized in that, described radio communication detecting system also comprises: electric power system, is connected with the tested wireless communication module in the first multifunctional electromagnetic wave cell, for powering to tested wireless communication module.
4. the method as described in claim 1,2 or 3, is characterized in that, also comprise:
Described radio communication detecting system is utilized to carry out the test of transmitting power, frequency error and stray parameter to tested wireless communication module; The wireless interconnected interworking module network test system of micropower is utilized to carry out the test of transmitting power, frequency error and stray parameter; The test result of test result to the wireless interconnected interworking module network test system of described micropower according to described radio communication detecting system is calibrated;
Wherein, the wireless interconnected interworking module network test system of described micropower comprises the second multifunctional electromagnetic wave cell, the second industrial computer, intercepts unit, the second comprehensive tester and standard agreement signal source; Wherein, the second multifunctional electromagnetic wave cell, for laying tested wireless communication module to isolate external environment impact; Tested wireless communication module in second multifunctional electromagnetic wave cell respectively with the second industrial computer, intercept unit and the second comprehensive tester is connected; Second industrial computer also respectively with intercept unit, the second comprehensive tester and standard agreement signal source and be connected; Second comprehensive tester is also connected with standard agreement signal source; Intercepting unit, for monitoring the interactive communication of tested wireless communication module and miscellaneous equipment, monitored data being supplied to the second industrial computer; Standard agreement signal source, under the control of the second industrial computer, to the second comprehensive tester outputting standard baseband signal; Second comprehensive tester, under the control of the second industrial computer, by mutual with tested wireless communication module, obtain test data and is supplied to the second industrial computer; Second industrial computer, for control criterion protocol signal source to the second comprehensive tester outputting standard baseband signal, and, according to intercepting monitored data that unit provides and/or the test data that the second comprehensive tester provides, obtain test result.
5. method as claimed in claim 4, is characterized in that, utilize the wireless interconnected interworking module network test system of micropower to carry out the test of transmitting power, frequency error and stray parameter, comprising:
Utilize the second industrial computer to set the tested channel of tested wireless communication module, make tested wireless communication module emitting radio frequency signal;
Second comprehensive tester is set to transmitter test pattern, the second comprehensive tester is utilized to choose the radiofrequency signal of tested wireless communication module transmitting, adjust the intermediate frequency width of this radiofrequency signal, read the transmitting power of tested wireless communication module, frequency error and stray parameter.
6. method as claimed in claim 5, is characterized in that, utilize the second industrial computer to set the tested channel of tested wireless communication module, make tested wireless communication module emitting radio frequency signal, comprising:
Utilize the second industrial computer to set the tested channel of tested wireless communication module, make tested wireless communication module launch do not adjust carrier radio frequency signal, or under M4 signal madulation emitting radio frequency signal.
7. method as claimed in claim 4, is characterized in that, utilize described radio communication detecting system to carry out the test of transmitting power, frequency error and stray parameter to tested wireless communication module, comprising:
The first industrial computer is utilized to test front Initialize installation to the first comprehensive tester;
Control tested wireless communication module emitting radio frequency signal, and be sent to the first comprehensive tester;
The first comprehensive tester is utilized to measure transmitting power and the stray parameter of radiofrequency signal;
Utilize the first industrial computer from the transmitting power of the first comprehensive tester reading radio frequency signal and stray parameter, and calculated rate error.
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