CN110690929A - Testing device, cloud server and testing method of communication equipment - Google Patents
Testing device, cloud server and testing method of communication equipment Download PDFInfo
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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
- H04B17/16—Test equipment located at the transmitter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The invention provides a testing device, a cloud server and a testing method of communication equipment, wherein the testing device comprises the following components: the cloud server is used for calling a preset program corresponding to the first target test item according to the test instruction of the first target test item and generating a first test signal; or receiving the cloud digital signal, and calling a preset program corresponding to the second target test item to process the cloud digital signal according to the cloud digital signal to obtain a test result; the electric instrument is used for receiving the first test signal, converting the first test signal into a first radio frequency test signal and sending the first radio frequency test signal to the equipment to be tested; or receiving a second radio frequency test signal of a second target test item sent by the device to be tested, and converting the second radio frequency test signal into a cloud digital signal. The technical scheme reduces the cost of the communication equipment test and improves the efficiency and the flexibility of the communication equipment test.
Description
Technical Field
The invention relates to the technical field of equipment testing, in particular to a testing device, a cloud server and a testing method of communication equipment.
Background
Various tests are required to confirm the usability, reliability, interoperability, and functionality and performance of products, equipment, and systems during design, manufacture, delivery, use, and the like. According to the international organization and the regulations of each country in the communication field, many communication equipment products (such as communication base stations, terminals and the like) need to pass a series of tests before entering the market. The tests are performed aiming at various functions, performances, safety and the like of communication equipment products, and qualified products can enter the market through the tests. In the test of communication equipment products, the test of the communication protocol and the radio frequency performance of the equipment is usually performed by using a complex measurement and analysis instrument because the complex protocol interaction and the processes of generating, calculating, measuring and the like of special signals are involved.
Currently, most of the relevant tests are performed using a general-purpose integrated meter (a solution of independent meters plus options). At present, a common test instrument is a combined independent device (although some test systems are complex), modules of generating, collecting, processing, calculating, storing, presenting results and the like of test signals are basically concentrated in the independent device, and although some test systems have network connection functions, the realized functions are limited to transmission of test result data and configuration of partial test parameters, and in general, the test instrument still belongs to a mode in which an "independent system" exists. For example, as shown in fig. 1, when testing the transmission performance of EUT (equipment under Test), a VSA (Vector Signal Analyzer) is generally used to analyze and measure a Signal emitted from EUT; when testing the reception performance of the EUT, a VSG (Vector Signal Generator) is generally used to send out a specific test Signal for testing. As can be seen from fig. 1, in such an implementation, the test meter not only needs to perform electrical operations such as signal conversion (e.g., digital-to-analog conversion, analog-to-digital conversion), conditioning (e.g., frequency conversion), transmission, and reception, but also needs to perform computational operations such as signal generation (e.g., generating a vector interference signal), processing (e.g., verifying configuration correctness of the device under test), decoding, and measurement (e.g., processing and analyzing the test signal to obtain a test result). Because each universal meter needs to test multiple communication systems (such as GSM, CDMA, LTE, WIFI, and the like) devices, the analysis methods of signals of the systems are different, and the instruments usually provide support for testing the various communication systems in an option form (selecting different programs). When a test of a specific system needs to be executed, a corresponding option needs to be purchased and placed in the meter to be used.
Therefore, the existing solution for adding optional parts to the independent instrument has the following disadvantages:
1. high cost and poor flexibility of use: for the manufacturers of the meters, each meter needs to include all the electronic devices required for signal transceiving, and must have a powerful calculation function. This makes the hardware cost, volume and weight of the meter itself high. For a user, besides purchasing meter hardware, corresponding function options (algorithms and programs) are also purchased for executing a test, which increases the use cost of the user on one hand, and on the other hand, because the meter hardware and the functions (options) are bound, resource allocation difficulty is brought to the user, and flexibility is poor.
2. Insufficient computing resources: at present, communication standards and protocols are more and more complex, algorithms corresponding to a plurality of systems have extremely high requirements on computing capacity, and local computing resources of instruments cannot meet corresponding computing requirements easily. With the progress of communication technology, the coding/modulation scheme becomes more complex, the problem will be more prominently shown in the near future, and the insufficient computing resources also cause the reduction of the testing efficiency.
Disclosure of Invention
The embodiment of the invention provides a testing device of communication equipment, which is used for reducing the testing cost of the communication equipment and improving the testing efficiency and flexibility of the communication equipment, and comprises:
the cloud server is used for receiving a test instruction of a first target test item, calling a preset program corresponding to the first target test item according to the test instruction, generating a first test signal corresponding to the first target test item, and sending the first test signal; or receiving the cloud digital signal, and calling a preset program corresponding to the second target test item to process the cloud digital signal according to the cloud digital signal to obtain a test result;
the electric instrument is used for receiving the first test signal, converting the first test signal into a first radio frequency test signal and sending the first radio frequency test signal to equipment to be tested; or receiving a second radio frequency test signal of a second target test item sent by the device to be tested, converting the second radio frequency test signal into a cloud digital signal of the second target test item, and sending the cloud digital signal.
The embodiment of the invention also provides a cloud server, which is used for reducing the cost of the communication equipment test and improving the efficiency and the flexibility of the communication equipment test, and comprises the following components:
the receiving unit is used for receiving a test instruction of a first target test item; or receiving a cloud digital signal of a second target test item;
the first calling unit is used for calling a preset program corresponding to the first target test item according to the test instruction and generating a first test signal corresponding to the first target test item;
the second calling unit is used for calling a preset program corresponding to the second target test item to process the cloud digital signal according to the cloud digital signal to obtain a test result;
and the sending unit is used for sending out a first test signal corresponding to the first target test item.
The embodiment of the invention also provides a test method of the communication equipment, which is used for reducing the test cost of the communication equipment and improving the test efficiency and flexibility of the communication equipment and comprises the following steps:
the method comprises the steps that a cloud server receives a test instruction of a first target test item, calls a preset program corresponding to the first target test item according to the test instruction, generates a first test signal corresponding to the first target test item, and sends the first test signal; or receiving the cloud digital signal, and calling a preset program corresponding to the second target test item to process the cloud digital signal according to the cloud digital signal to obtain a test result;
the electric instrument receives the first test signal, converts the first test signal into a first radio frequency test signal and sends the first radio frequency test signal to the equipment to be tested; or receiving a second radio frequency test signal of a second target test item sent by the device to be tested, converting the second radio frequency test signal into a cloud digital signal of the second target test item, and sending the cloud digital signal.
The embodiment of the invention also provides computer equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the test method of the communication equipment when executing the computer program.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program for executing the test method of the communication device is stored in the computer-readable storage medium.
Compared with the test scheme of the universal instrument in the prior art, in the scheme provided by the embodiment of the invention, only the electric part in the traditional sense is reserved in the electric instrument, namely only the electric instrument comprises a radio frequency receiving/transmitting front end, a signal conversion circuit and a module communicated with a cloud end, and is used for receiving a first test signal, converting the first test signal into a first radio frequency test signal and sending the first radio frequency test signal to the equipment to be tested; or receiving a second radio frequency test signal of a second target test item sent by the device to be tested, converting the second radio frequency test signal into a cloud digital signal of the second target test item, and sending the cloud digital signal. All the contents related to signal calculation are placed in the cloud for carrying out: the cloud server receives a test instruction of a first target test item, calls a preset program corresponding to the first target test item according to the test instruction, generates a first test signal corresponding to the first target test item, and sends the first test signal; or receiving the cloud digital signal, and calling a preset program corresponding to the second target test item to process the cloud digital signal according to the cloud digital signal to obtain a test result.
By adopting the test framework of the cloud server and the electric instrument to test the communication equipment, the cost of the electric instrument is reduced, the instrument is not restricted by a built-in algorithm/software in use, and the calculation work involved in test analysis is performed through the cloud server, so that the calculation resources are increased, and the test efficiency and flexibility of the communication equipment test are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a testing apparatus of a communication device in the prior art;
FIG. 2 is a schematic structural diagram of a testing apparatus of a communication device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a testing apparatus of a communication device according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a cloud server according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a testing method of a communication device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Before describing the embodiments of the present invention, the abbreviations and key term definitions referred to in the embodiments of the present invention are described:
1. RF: radio Frequency, generally refers to electromagnetic signals at frequencies from 300kHz to 300 GHz.
2. VSG: vector Signal Generator, instrument for generating and sending out various standard radio frequency signals for testing.
3. And (3) VSA: vector Signal Analyzer, test instrument for analyzing and measuring various system radio frequency signals.
4. Selecting: software is included in the meter to implement the correlation algorithm for the generation and analysis of the specific format signals.
5. EUT/DUT: the Device Under Test can also be called as a Device Under Test.
The inventor finds out that the existing meter device for testing the communication device has the following problems: the instrument itself is high in hardware cost, large in volume and heavy in weight. For a user, in addition to purchasing meter hardware, a corresponding function option (algorithm, software program) needs to be purchased in order to perform a test, which increases the use cost of the user on one hand, and on the other hand, because the meter hardware and the function (option) are bound, resource allocation difficulty is brought to the user. In addition, communication standards and protocols are increasingly complex, algorithms corresponding to a plurality of communication systems have extremely high requirements on computing capacity, and local computing resources of the instrument are difficult to meet corresponding computing requirements.
Although there are currently meter manufacturers that have introduced techniques to manage meter status, test plans on the cloud, and to store test data (including test results) on the cloud. But does not involve the processing and calculation of the raw data. Since in this solution the measurement of the meter is still done locally at the meter. And only the information and the state of the instrument and the measured data are stored on the cloud. The scheme still cannot solve the problem of insufficient computing capability of the local instrument and the problems of high cost and difficult upgrading.
In view of the above technical problems, the inventor proposes a technical solution to solve the above problems in the communication test, compress the cost of the test device, and expand and enhance the capability and function of the instrumentation system by using the advantages of cloud storage and data processing. The test scheme of the communication equipment provided by the embodiment of the invention is an instrument framework based on a cloud technology, the framework uses a local front end (an electric instrument) to acquire data, the data is sent to a cloud end (a cloud server) to be processed and stored, or the operation/storage is completed at the cloud end, the local front end directly acquires calculation result data, and the test is completed by using the calculation result data. The following describes a test scheme of the communication device in detail.
Fig. 2 is a schematic structural diagram of a testing apparatus for a communication device in an embodiment of the present invention, and as shown in fig. 2, the apparatus includes:
the cloud server 02 is used for receiving a test instruction of a first target test item, calling a preset program corresponding to the first target test item according to the test instruction, generating a first test signal corresponding to the first target test item, and sending the first test signal; or receiving a cloud digital signal, and calling a preset program corresponding to a second target test item to process the cloud digital signal according to the cloud digital signal to obtain a test result;
the electrical instrument 04 is used for receiving the first test signal, converting the first test signal into a first radio frequency test signal, and sending the first radio frequency test signal to the device to be tested; or receiving a second radio frequency test signal of a second target test item sent by the device to be tested, converting the second radio frequency test signal into a cloud digital signal of the second target test item, and sending the cloud digital signal.
Compared with the test scheme of the universal meter in the prior art, in the scheme provided by the embodiment of the invention, only the traditional electric part is reserved in the electric meter, namely only three parts including a radio frequency receiving/transmitting front end (receiving a second radio frequency test signal of a second target test item transmitted by the equipment to be tested and transmitting the first radio frequency test signal to the equipment to be tested), a signal conversion circuit (converting the first test signal into the first radio frequency test signal and converting the second radio frequency test signal into a cloud end digital signal of the second target test item) and a module (receiving the first test signal and transmitting the cloud end digital signal) communicated with a cloud end are included, so that the three parts are used for receiving the first test signal, converting the first test signal into the first radio frequency test signal and transmitting the first radio frequency test signal to the equipment to be tested; or receiving a second radio frequency test signal of a second target test item sent by the device to be tested, converting the second radio frequency test signal into a cloud digital signal of the second target test item, and sending the cloud digital signal. All the contents related to signal calculation are placed in the cloud for carrying out: the cloud server receives a test instruction of a first target test item, calls a preset program corresponding to the first target test item according to the test instruction, generates a first test signal corresponding to the first target test item, and sends the first test signal; or receiving the cloud digital signal, and calling a preset program corresponding to the second target test item to process the cloud digital signal according to the cloud digital signal to obtain a test result.
By adopting the test framework of the cloud server and the electric instrument to test the communication equipment, the cost of the electric instrument is reduced, the instrument is not restricted by a built-in algorithm/software in use, and the calculation work involved in test analysis is performed through the cloud server, so that the calculation resources are increased, and the test efficiency and flexibility of the communication equipment test are improved.
In specific implementation, all software programs related to the communication device test are placed in the cloud server, that is, the cloud server stores programs (preset programs) related to various test items and/or preset test signal data, and the calling is performed according to a specific target test item.
In a specific implementation, the first target test item may be a test item (generation and transmission of a specific radio frequency signal) used as a signal source, and specifically may be an item for testing the receiver performance of the device under test, for example: the method comprises the following steps of performing radio frequency performance test on a receiver of the equipment to be tested, performing intermodulation test on the receiver of the equipment to be tested, performing radio frequency anti-interference blocking test on the receiver of the equipment to be tested, performing radio frequency anti-interference C/I test on the receiver of the equipment to be tested, and the like. Accordingly, the first test signal may be a digital baseband signal corresponding to the radio frequency signal to be transmitted.
In specific implementation, the second target test item may be a test item (a digital baseband signal converted from a received radio frequency signal) used by the signal analyzer, and specifically may be an item for performing a radio frequency performance test on a transmitter of the device under test or an item for performing a frequency domain or time domain test on the transmitter of the device under test. Accordingly, the second test signal may be a digital baseband signal into which the received radio frequency signal is converted.
In particular, the operations of generating and transmitting the signal (the first target test item) may be implemented on a local device, or may be implemented on any node (terminal) connected to a network (a network accessible to a cloud service). Also, the result of the signal arithmetic processing (second target test item) may be fed back to the local device for display, or may be displayed and queried on an arbitrary node (terminal) connected to the network (network accessible to the cloud service). Specifically, the cloud server calls a preset program corresponding to a second target test item to process the cloud digital signal according to the cloud digital signal converted from the second radio frequency test signal sent by the device to be tested, for example, the preset program relates to test analysis calculation processing to obtain a test result, the test result can be stored in the cloud server and is convenient to manage, and can also be returned to a terminal or an electrical instrument of a tester and displayed and inquired at any network node (terminal) capable of accessing the cloud server. Of course, the electrical instrument sends the first radio frequency test signal to the device to be tested, and the test result obtained by testing the receiver of the device to be tested on the relevant items can be returned to the terminal of the electrical instrument or the tester, and also displayed and inquired at any network node (terminal) capable of accessing the cloud server. And finally, the data can be uploaded to a cloud server for storage, so that subsequent analysis and management are facilitated.
In particular, the test instruction of the first target test item may include: the tester informs the relevant configuration of the signal to be used, such as the target test item and the communication system of the terminal to be tested, according to the configuration parameters selected by the test item. The cloud server calls a preset program corresponding to the first target test item according to the test instruction to generate a first test signal corresponding to the first target test item, for example, a vector test signal is generated, the first test signal is sent to the electric instrument, the electric instrument is subjected to digital-to-analog conversion and frequency conversion processing, and the converted first radio frequency test signal is sent to the device to be tested.
In a specific implementation, the first test signal may also be referred to as a downlink test signal (a test signal sent by the test apparatus to the device under test), and the second radio frequency test signal may also be referred to as an uplink test signal (a test signal sent by the device under test to the test apparatus).
How the present invention is implemented will be described below with reference to fig. 3, taking as an example a vector signal source and a vector signal analyzer ("an improved scheme in which VSA is generally used to analyze and measure a signal emitted from EUT when the transmission performance of EUT is tested, and VSG is generally used to emit a specific test signal for testing when the reception performance of EUT is tested").
As shown in fig. 3, the testing apparatus for communication equipment provided by the embodiment of the present invention mainly involves two parts: 1. a cloud computing/storage server (cloud server); 2. local meters (electrical meters) with corresponding data interfaces and interfaces to EUT interactions. The test framework only keeps the electrical part in the traditional sense in the electrical instrument, namely only comprises a signal conversion module, a radio frequency transceiving front end module and a cloud server communication module in the traditional integrated test instrument, and all work contents related to signal calculation of test analysis are placed in a cloud for processing. And the cloud end and the data interface of the local instrument perform bidirectional data transmission. The purpose of using the structure is to solve the defects of the prior integrated instrument, reduce the cost, improve the flexibility, increase the computing resources, improve the testing efficiency, simplify the upgrading and maintenance process, improve the reliability of data and provide convenience for data management.
In specific implementation, for meter test work (e.g., VSG) of a signal generation class, a tester sends a test instruction to a cloud server (e.g., cloud computing cloud storage in fig. 3) through a test program of a local terminal or a local electrical meter (e.g., an intra-frame portion on a "VSG vector signal source" in fig. 3), where the instruction informs a relevant configuration (which may be a test instruction) that a signal needs to be used. This instruction may be issued at a local meter or any location capable of connecting to a cloud service. The cloud server generates a corresponding test signal (first test signal) according to a requirement by using (calling) a corresponding algorithm (a preset program corresponding to the first target test item) arranged in the cloud server. This test signal is then sent to a local meter (electrical meter), conditioned by a series of local hardware (e.g., digital-to-analog conversion, frequency conversion processing in fig. 3), and finally sent to the device under test.
In specific implementation, for meter testing work (e.g., VSA) of a signal measurement type, a local meter (an electrical meter, for example, a part in an upper frame of a "VSA vector signal analyzer" in fig. 3) directly interacts with a device to be tested, a signal (a second radio frequency test signal) related to measurement is acquired through an internal circuit, the acquired signal is converted into a cloud-end digital signal, and the cloud-end digital signal is uploaded to a cloud (a cloud-end server, for example, cloud computing cloud storage in fig. 3) in a form of data stream or data packet. And the server at the cloud end demodulates, analyzes, calculates and measures the uploaded data by using a corresponding algorithm (a preset program corresponding to the second target test item) arranged in the server at the cloud end, and completes the related test items of the transmitter of the tested equipment. And finally, storing the measurement result in the cloud, and sending the measurement result to a tester or a local test program, for example, returning the measurement result to a tester terminal or an electric instrument for displaying.
In specific implementation, besides the performance test of the VSA and the VSG on the communication device, the test apparatus provided in the embodiment of the present invention may be used to perform other tests, for example: the Bluetooth comprehensive tester establishes loopback connection with equipment to be tested, and tests radio frequency performance items of a transmitter and a receiver of the equipment to be tested; the method comprises the steps that a frequency spectrum analyzer tests a transmitter of equipment to be tested in a frequency domain or a time domain; the vector signal source generates a vector interference signal and sends the vector interference signal to the equipment to be tested, and the vector interference signal and a single-frequency interference signal generated by the analog signal generator are matched with the Bluetooth comprehensive tester to test an intermodulation project of a receiver of the equipment to be tested; the analog signal generator is matched with a Bluetooth comprehensive tester to test the radio frequency anti-interference blocking item of a receiver of the equipment to be tested; or the analog signal generator generates a single-frequency interference signal and sends the single-frequency interference signal to the equipment to be tested, and the single-frequency interference signal and the vector interference signal generated by the vector signal generator are matched with the Bluetooth comprehensive tester to test the intermodulation items of the receiver of the equipment to be tested. The test signal generation, test analysis, calculation, processing, decoding and other operations related to the tests are all performed on the cloud server 02, and the related operations of receiving, sending, frequency conversion, digital-to-analog-to-digital conversion and the like in the traditional electrical sense are all performed on the electrical instrument 04.
In specific implementation, a server (cloud server) on the cloud includes data processing and data generation algorithms with specific functions and/or stored data, and includes algorithms for corresponding distributed computation. And when a data processing instruction is received, calling related algorithms and/or data, and using resources on the cloud to participate in operation. And after the operation is finished, storing the processing result to a cloud end and/or transmitting the processing result to local equipment or a tester. The cloud server is described below.
The inventor also finds that the existing scheme of adding optional parts to the independent instrument has the defect of inconvenient maintenance for upgrading the optional parts (preset programs): the communication standard is updated rapidly, and the test specification of part of the communication systems can be updated in half a year or a year. Theoretically, after the new standards are released, the meter manufacturer needs to update and upgrade the corresponding algorithm in all the meters with the corresponding options, which is difficult. Therefore, the software upgrading cost is high, and the convenience is poor: generally, software upgrade needs to be carried out on site, and the cost is high. Since the inventors have considered this problem, the following technical solutions are proposed.
In an embodiment, the cloud server may be further configured to receive an update instruction for the preset program, and update the preset program according to the update instruction.
During specific implementation, when the standard is updated or upgraded, only corresponding algorithms and/or software need to be updated at the cloud end, and updating and maintenance are facilitated. In addition, the updating instruction for the preset program includes not only upgrading a certain software, but also adding a preset program corresponding to a test item, and the like. The above updating the preset program may further include: and performing addition, deletion, upgrading, modification and other processing on the preset program.
The inventor also finds that the existing scheme of adding optional parts to the independent instrument has the defect of inconvenient data management: the independent meters are mostly operated directly by testers, and the test results are also recorded manually. Such a method brings about problems of data reliability on the one hand and is not beneficial to statistics and analysis of data on the other hand. Since the inventors have considered this problem, the following technical solutions are proposed.
In an embodiment, the cloud server is further configured to store a preset program, preset test signal data, and a test result corresponding to a plurality of test items.
In specific implementation, the local meter (electrical meter) only contacts the raw data (collected test data and input raw test data), and all calculation/measurement processes are realized on the cloud. Corresponding test processes and data are directly stored on the cloud, reliability of the data is improved, statistics and analysis of subsequent data are facilitated, and convenience is provided for data-based application.
During specific implementation, except that the cloud server stores preset programs and test results corresponding to various test items, the cloud server can also store preset test signal data, and the function and the effect of storing the preset test signal data are as follows: for the test signals frequently used, the generated test signals can be stored in the cloud end, the generated test signal data can be directly called during calling, an algorithm (a preset program) is not required to be called for recalculation, and the test efficiency is improved.
In one embodiment, the electrical meter may include:
a data interface unit (such as the data interface shown in fig. 3) for receiving the first test signal and sending out the first test signal; or receiving a cloud digital signal and sending the cloud digital signal; the first test signal is a digital signal;
a digital-to-analog conversion unit (such as the digital-to-analog conversion shown in fig. 3) connected to the data interface unit, and configured to receive the first test signal and convert the first test signal into a first analog test signal;
a transmitting variable frequency radio frequency processing unit (such as the up-conversion radio frequency processing shown in fig. 3), an input end of which is connected with an output end of the digital-to-analog conversion unit, and an output end of which is connected with an input end of the device to be tested, and is used for processing the first analog test signal into a first radio frequency test signal and sending the first radio frequency test signal to the input end of the device to be tested;
a receiving variable frequency radio frequency processing unit (such as the down-conversion radio frequency processing shown in fig. 3), an input end of which is connected to an output end of the device to be tested, and is configured to receive a second radio frequency test signal of a second target test item sent by the device to be tested, and perform variable frequency processing on the second radio frequency test signal;
an input end of the analog-to-digital conversion unit (such as the analog-to-digital conversion shown in fig. 3) is connected to the output end of the receiving frequency conversion radio frequency processing unit, and is configured to convert the second radio frequency test signal after frequency conversion processing into a cloud digital signal.
In specific implementation, for the meter device (electrical meter), only the existing electrical part interacting with the EUT and the communication interface interacting with the cloud are reserved. In the interface part, a lightweight processor (only processing data transmission work and not processing signals) and a high-speed network interface are used for realizing high-speed data interconnection between a cloud end and the front end of a local instrument (an electric instrument).
Based on the same inventive concept, the embodiment of the present invention further provides a cloud server, as in the following embodiments. Because the cloud server is similar to the principle of the problem solving of the testing device of the communication device, the implementation of the cloud server can refer to the implementation of the testing device of the communication device, and repeated parts are not repeated. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 4 is a schematic structural diagram of a cloud server in an embodiment of the present invention, and as shown in fig. 4, the cloud server includes:
a receiving unit 021, configured to receive a test instruction of a first target test item; or receiving a cloud digital signal of a second target test item;
a first calling unit 022, configured to call a preset program corresponding to a first target test item according to the test instruction, and generate a first test signal corresponding to the first target test item;
the second calling unit 023 is configured to call a preset program corresponding to the second target test item to process the cloud digital signal according to the cloud digital signal, so as to obtain a test result;
and the sending unit 024 is used for sending out a first test signal corresponding to the first target test item.
In one embodiment, the cloud server may further include: and the updating unit is used for receiving an updating instruction of the preset program and updating the preset program according to the updating instruction.
In one embodiment, the cloud server may further include: and the storage unit is used for storing preset programs, preset test signal data and test results corresponding to various test items.
In one embodiment, the cloud server may further include: and the verification unit is used for verifying the configuration correctness of the device to be tested before calling the preset program corresponding to the second target test item to process the cloud digital signal, and calling the preset program corresponding to the second target test item to process the cloud digital signal when the result is correct.
Based on the same inventive concept, the embodiment of the present invention further provides a testing method of a communication device, as in the following embodiments. Because the principle of the problem solving of the testing method of the communication device is similar to that of the testing apparatus of the communication device, the implementation of the testing method of the communication device can refer to the implementation of the testing apparatus of the communication device, and repeated details are not repeated. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 5 is a schematic flowchart of a testing method of a communication device in an embodiment of the present invention, and as shown in fig. 5, the testing method includes:
step 101: the method comprises the steps that a cloud server receives a test instruction of a first target test item, calls a preset program corresponding to the first target test item according to the test instruction, generates a first test signal corresponding to the first target test item, and sends the first test signal; or receiving the cloud digital signal, and calling a preset program corresponding to the second target test item to process the cloud digital signal according to the cloud digital signal to obtain a test result;
step 102: the electric instrument receives the first test signal, converts the first test signal into a first radio frequency test signal and sends the first radio frequency test signal to the equipment to be tested; or receiving a second radio frequency test signal of a second target test item sent by the device to be tested, converting the second radio frequency test signal into a cloud digital signal of the second target test item, and sending the cloud digital signal.
In an embodiment, the method for testing the communication device may further include: the cloud server receives an updating instruction of the preset program, and updates the preset program according to the updating instruction.
In an embodiment, the method for testing the communication device may further include: the cloud server stores preset programs, preset test signal data and test results corresponding to various test items.
The embodiment of the invention also provides computer equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the test method of the communication equipment when executing the computer program.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program for executing the test method of the communication device is stored in the computer-readable storage medium.
The following examples are given to facilitate an understanding of how the invention may be practiced.
Aiming at a 4G base station radio frequency transmitter performance test (cloud computing + vector signal analyzer), ref.3GPP36.141, the test standard for the 4G base station transmitter performance test comprises the following steps:
1. configuring a base station to transmit a signal for setting a communication system and configuration;
2. receiving a signal sent by a base station by using a vector signal analyzer, and verifying the correctness of the configuration of the base station;
3. if the base station configuration is correct, the vector signal analyzer is used for analyzing the signals and reading corresponding test results.
Before demodulating the signal and reading the corresponding measurement result, the signal needs to be verified (step 2 above) to ensure that the base station operates in the correct configuration, otherwise, the measurement result will have a deviation. During verification, received signals need to be completely demodulated, analyzed and compared, and a large amount of calculation is involved.
In conventional solutions, these calculations are done in the calculation module of the local meter (integrated meter), which requires 1) a strong signal processing capacity in the meter; 2) the instrument is internally provided with a demodulation algorithm (signal demodulation algorithm of a 4G-LTE base station) corresponding to a standard. Even in such a case, the meter still takes approximately 10 seconds to complete the signal calculation.
In the technical scheme provided by the embodiment of the invention, after the signal in the step 2 is received, the received signal data is directly uploaded to a cloud end, the signal processing algorithm of a cloud end server is used for calculation, and the result is transmitted back to the instrument (electric instrument). Thus the meter itself does not require significant computing power or the incorporation (purchase) of various demodulation algorithms. The time consumption of this validation computation depends on the network speed and the computing power of the cloud computing. When the computation is complex, there will be a significant advantage compared to processing locally (integrating meters).
Secondly, aiming at a sensitivity Test (cloud computing + vector signal source) ref.SIG.Bluetooth Test Specification of a low-power consumption Bluetooth (BLE) device receiver, the Test standard for the sensitivity Test of the BLE device receiver comprises the following steps:
1. enabling a tested device (EUT) to enter a receiving mode and feeding back a signal receiving result;
2. using a vector signal source, generating corresponding test signals according to the configuration and the test specification of the EUT, wherein the test signals comprise 1500 'non-ideal' data packets;
3. using a vector signal source to send the test signal generated in the step 2 to the EUT;
4. the number of packets it receives is read from the EUT and it is judged according to the specifications whether it passes the test.
In step 2, a test signal containing 1500 data packets is required to be generated, and the signal needs to be dynamically generated according to the parameters of EUTs, for example, the longest packet length (from 37Byte to 255Byte) that each EUT can receive is different. After the test signal is generated, some non-ideal components, such as frequency offset and fluctuation, timing deviation, etc., need to be artificially added to the test signal. The amount of computation to generate the test signal can be large when the packet length is long.
In conventional meter solutions, this operation requires 1) the meter system to contain a relatively strong computing power and 2) the meter system to have a corresponding program (option) built into it that generates the test signal. Even so, this computation process can be very time consuming due to limitations in the computational power of the single processor. Using a conventional PC processor, the generation of the most complex data packets (255 byte packet long, S-8, 1500) typically takes around 1 hour.
In the technical scheme provided by the embodiment of the invention, the instrument (or an instrument operator) uploads parameters required by signal generation to the cloud, the service of the cloud is responsible for calling computing resources, and corresponding test signals are generated by computing and are pushed back to the instrument (an electric instrument). Therefore, the instrument does not need strong computing power or (purchase) corresponding test programs (optional parts), the cost is saved, and the test efficiency is improved. The time for the entire signal generation depends on the speed of the network and the computing power of the cloud. But because the computing power of the cloud end can be flexibly configured according to the needs, the whole processing speed can be greatly improved.
The above are two examples of performing tests using the solution provided by the embodiments of the present invention. With the continuous progress of communication protocols/standards, the demand of product testing on computing is higher and higher, and the advantages of the technical scheme provided by the embodiment of the invention compared with the traditional (local computing) scheme are more and more obvious.
The technical scheme provided by the embodiment of the invention has the beneficial technical effects that:
1. reduce cost, improve and use the flexibility: because the local meter completely strips off the computing resources, the cost of the meter is obviously reduced compared with that of the existing meter, and the meter cannot be eliminated because the capability of a computing part is lagged behind. The meter use will not be constrained by the built-in algorithm/software, and the flexibility will be greatly improved.
2. Increase computational resource, improve test efficiency: the computing part is completely realized on the cloud, and corresponding computing resources can be allocated according to needs. For example, a test case that is difficult to operate in a traditional meter, such as processing of a large-scale multi-antenna array signal, can be implemented in a distributed computing manner.
3. The upgrading and maintenance are convenient: when the standard is updated or upgraded, only the corresponding algorithm and/or software needs to be updated in the cloud.
4. Data management is facilitated: the local meter is only exposed to raw data and all computation/measurement processes are implemented on the cloud. Corresponding test process and data are directly stored on the cloud, and convenience is provided for data-based application while reliability of the data is improved.
It will be apparent to those skilled in the art that the modules or steps of the embodiments of the invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A test apparatus for a communication device, comprising:
the cloud server is used for receiving a test instruction of a first target test item, calling a preset program corresponding to the first target test item according to the test instruction, generating a first test signal corresponding to the first target test item, and sending the first test signal; or receiving the cloud digital signal, and calling a preset program corresponding to the second target test item to process the cloud digital signal according to the cloud digital signal to obtain a test result;
the electric instrument is used for receiving the first test signal, converting the first test signal into a first radio frequency test signal and sending the first radio frequency test signal to equipment to be tested; or receiving a second radio frequency test signal of a second target test item sent by the device to be tested, converting the second radio frequency test signal into a cloud digital signal of the second target test item, and sending the cloud digital signal.
2. The testing apparatus of claim 1, wherein the cloud server is further configured to receive an update instruction for a preset program, and perform update processing on the preset program according to the update instruction.
3. The testing apparatus of claim 1, wherein the cloud server is further configured to store a preset program, preset test signal data, and test results corresponding to a plurality of test items.
4. The test apparatus for a communication device of claim 1, wherein the electrical meter comprises:
the data interface unit is used for receiving the first test signal and sending the first test signal out; or receiving a cloud digital signal and sending the cloud digital signal; the first test signal is a digital signal;
the digital-to-analog conversion unit is connected with the data interface unit and used for receiving a first test signal and converting the first test signal into a first analog test signal;
the input end of the transmitting variable-frequency radio frequency processing unit is connected with the output end of the digital-to-analog conversion unit, and the output end of the transmitting variable-frequency radio frequency processing unit is connected with the input end of the equipment to be tested and used for processing the first analog test signal into a first radio frequency test signal and sending the first radio frequency test signal to the input end of the equipment to be tested;
the receiving frequency conversion radio frequency processing unit is connected with the output end of the equipment to be tested, and is used for receiving a second radio frequency test signal of a second target test item sent by the equipment to be tested and carrying out frequency conversion processing on the second radio frequency test signal;
and the input end of the analog-to-digital conversion unit is connected with the output end of the receiving variable-frequency radio frequency processing unit and is used for converting the second radio frequency test signal subjected to variable-frequency processing into a cloud digital signal.
5. A cloud server, comprising:
the receiving unit is used for receiving a test instruction of a first target test item; or receiving a cloud digital signal of a second target test item;
the first calling unit is used for calling a preset program corresponding to the first target test item according to the test instruction and generating a first test signal corresponding to the first target test item;
the second calling unit is used for calling a preset program corresponding to a second target test item to process the cloud digital signal according to the cloud digital signal to obtain a test result;
and the sending unit is used for sending out a first test signal corresponding to the first target test item.
6. A method for testing a communication device, comprising:
the method comprises the steps that a cloud server receives a test instruction of a first target test item, calls a preset program corresponding to the first target test item according to the test instruction, generates a first test signal corresponding to the first target test item, and sends the first test signal; or receiving the cloud digital signal, and calling a preset program corresponding to the second target test item to process the cloud digital signal according to the cloud digital signal to obtain a test result;
the electric instrument receives the first test signal, converts the first test signal into a first radio frequency test signal and sends the first radio frequency test signal to the equipment to be tested; or receiving a second radio frequency test signal of a second target test item sent by the device to be tested, converting the second radio frequency test signal into a cloud digital signal of the second target test item, and sending the cloud digital signal.
7. The method for testing a communication device of claim 6, further comprising: the cloud server receives an updating instruction of the preset program, and updates the preset program according to the updating instruction.
8. The method for testing a communication device of claim 6, further comprising: the cloud server stores preset programs, preset test signal data and test results corresponding to various test items.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 6 to 8 when executing the computer program.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 6 to 8.
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