CN113258957B - Power line communication product test system, control method and device - Google Patents
Power line communication product test system, control method and device Download PDFInfo
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- CN113258957B CN113258957B CN202110548363.9A CN202110548363A CN113258957B CN 113258957 B CN113258957 B CN 113258957B CN 202110548363 A CN202110548363 A CN 202110548363A CN 113258957 B CN113258957 B CN 113258957B
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Abstract
The invention is suitable for the technical field of communication product testing, and provides a power line communication product testing system, a control method and a device, wherein the system comprises a signal attenuation module, a coupling circuit module and an information processing module; the signal attenuation module attenuates an original signal transmitted by a machine to be tested and transmits the attenuated original signal to a standard prototype; the coupling circuit module provides pure power supplies for the standard prototype and the to-be-tested machine; the information processing module is used for acquiring a signal to be tested on the standard prototype, removing environmental noise in the signal to be tested and judging whether the signal to be tested is qualified according to a parameter qualification standard; a plurality of machines to be tested can coexist in the same shielding topology, the testing time of each product is shortened to 1 second, the testing efficiency is improved, and the cost is saved; the method for eliminating the topological noise by shortening the test time and using the parameters independent of the flow competition as the judgment standard removes the interference information, thereby greatly reducing the misjudgment rate.
Description
Technical Field
The invention belongs to the technical field of communication product testing, and particularly relates to a power line communication product testing system, a control method and a device.
Background
The household power line communication product has unique scene advantages in network communication application, but the product has difficulties in production and processing, wherein the biggest difficulty is as follows: mutual interference between production test topologies. The power line is easy to generate signal radiation interference of power supply system communication and working frequency band (1.8-100MHz) in communication, and the interference is difficult to eliminate, so that air radiation isolation and conduction radiation isolation processing are required to be carried out on each topology during production test of power line communication products.
The traditional test method uses a shielding box and an LISN (linear impedance stabilization network) to isolate each topology, and measures whether the product quality meets the quality inspection requirement or not by testing the Throughput (Throughput) of a product interface. This approach must ensure that each product does not receive significant ambient noise or other power line device communication signals during production testing.
However, the conventional test method has obvious disadvantages: each station needs an independent control computer, a shielding box and an LISN, so that the cost is high and the resource utilization rate is low; secondly, each topology can only test 2 products at the same time, and the testing efficiency is low; and thirdly, the throughput testing time of each product is 10-60 seconds, and the time is long.
Disclosure of Invention
The embodiment of the invention aims to provide a power line communication product test system, a control method and a device, and aims to solve the problems of low test efficiency and low resource utilization rate in the power line communication product test.
The embodiment of the present invention is implemented as such, and a system for testing a power line communication product, the system includes:
the signal attenuation module is used for attenuating an original signal transmitted by the machine to be tested and transmitting the attenuated original signal to the standard prototype;
the coupling circuit module is used for providing pure power supplies for the standard prototype and the to-be-tested machine;
the information processing module is used for acquiring a signal to be tested on the standard prototype, removing environmental noise in the signal to be tested and judging whether the signal to be tested is qualified or not according to a parameter qualification standard; the signal to be measured comprises the original signal.
Another objective of an embodiment of the present invention is to provide a method for controlling a test system of a power line communication product, the method including:
acquiring an original power line quality signal and an interface connection rate signal;
removing environmental noise in the original power line quality signal to obtain a reconstructed power line quality signal;
and judging whether the prototype is qualified, if the reconstructed power line quality signal meets the power line quality signal standard and the interface connection rate signal is equal to the interface connection rate signal standard, the performance of the prototype is qualified, otherwise, the prototype is unqualified.
Another object of an embodiment of the present invention is to provide a testing apparatus for power line communication products, which includes a memory and a processor, wherein the memory stores a computer program, and the computer program, when executed by the processor, causes the processor to execute the steps of the control method of the testing system for power line communication products.
The embodiment of the invention provides a power line communication product testing system which comprises a signal attenuation module, a coupling circuit module and an information processing module. In the invention, the machine to be tested and the standard prototype can coexist in the same shielding topology, one control device is shared, and an additional independent control computer, a shielding box and an LISN are not needed, so that the resource utilization rate is improved, and the cost is reduced. The invention judges whether the machine to be tested accords with the standard or not by removing the environmental noise in the signal to be tested; the parameters independent of flow competition are used as a judgment standard and a method for eliminating topological noise is adopted to remove the interference information, so that the misjudgment rate is greatly reduced.
Drawings
FIG. 1 is a block diagram of an exemplary system for testing a power line communication product;
FIG. 2 is a block diagram of the information processing module of FIG. 1;
FIG. 3 is a block diagram of a system for collecting environmental information and training parameter qualifying criteria;
FIG. 4 is a flow chart of a method for testing the power line communication product of FIG. 1 according to an embodiment;
FIG. 5 is a flowchart illustrating a specific method of step S204 in FIG. 4;
FIG. 6 is a flowchart illustrating a specific method of step S206 in FIG. 4;
FIG. 7 is a flow diagram of a method of collecting ambient noise as applied to FIG. 3 in one embodiment;
FIG. 8 is a flow diagram of a method applied to the training parameter eligibility criterion of FIG. 3 in another embodiment;
FIG. 9 is a block diagram showing an internal configuration of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms unless otherwise specified. These terms are only used to distinguish one element from another. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script, without departing from the scope of the present application.
In one embodiment, as shown in fig. 1, the present invention provides a test system for power line communication products, the system comprising:
the signal attenuation module 20 attenuates the original signal transmitted from the dut 50, and transmits the attenuated original signal to the standard prototype 40.
The coupling circuit module 30 is used for providing pure power supplies for the standard prototype 40 and the to-be-tested machine 50;
the information processing module 100 is used for acquiring a signal to be tested on the standard prototype 40, removing environmental noise in the signal to be tested and judging whether the machine to be tested 50 is qualified according to a parameter qualification standard; the signal to be measured comprises the original signal.
Preferably, the coupling circuit module 30 may adopt a linear impedance stabilizing network for providing a stable line impedance to separate the power grid from the dut 50; the coupling circuit module 30 is connected with the machine under test 50 through a first power line 61 and connected with the standard prototype 40 through a second power line 62, and provides pure power for the standard prototype 40 and the machine under test 50.
Preferably, the information processing module 100 is connected to the signal attenuation module 20 and the coupling circuit module 30 through the control line 7; the first network cable 81 is connected with the machine to be tested 50 to provide a communication signal for the machine to be tested 50; and the standard prototypes 40 are connected through the second mesh wire 82 and used for acquiring the signals to be measured on the standard prototypes 40.
Preferably, the standard prototypes 40 refer to standard products with low self noise and good signal quality, and the number of the standard prototypes 40 can be 1; the testers 50 are testers, and the number of the testers is N (N is an integer greater than or equal to 1).
In the embodiment of the invention, the machine to be tested 50 and the standard prototype 40 can coexist in the same shielding topology, share one control device, do not generate air radiation isolation and conduction radiation isolation, do not need additional independent control computers, shielding boxes and LISN, improve the resource utilization rate and reduce the cost. The invention judges whether the machine 50 to be tested meets the standard by removing the environmental noise in the signal to be tested; the parameters independent of flow competition are used as judgment standards, and the topological noise is eliminated, so that the misjudgment rate is reduced.
As shown in fig. 1, in one embodiment of the present invention, the signal attenuation module 20 includes:
the signal attenuation module 20 includes at least one attenuation channel and a gating switch, the attenuation channel is used for conducting the test machine 50 and the standard prototype 40, and the gating switch can select any one of the attenuation channels to realize signal conduction.
Preferably, the signal attenuation module 20 may include N attenuation channels and 1 gating switch; one end of the attenuation channel is connected with N testers 50, and the other end of the attenuation channel is connected with the standard prototype 40; the gating switch can select any path of attenuation channel, signal conduction is achieved, and 0-100 dB attenuation on any path of attenuation channel can be achieved.
In the embodiment of the present invention, N testers 50 may coexist in the same shielding topology, and are connected in parallel with each other, and the signal attenuation module 20 and the coupling circuit module 30 are shared, so that N shielding boxes are not required to isolate the N testers 50; and N testers 50 can be tested at one time, and the operation efficiency is high.
As shown in fig. 1, in an embodiment of the present invention, the dut 50 and the standard prototype 40 are specifically:
burning software is arranged in the machine to be tested 50 and the standard prototype 40, and is used for supporting the information processing module 100 to acquire the signal to be tested, the environmental noise and the qualified parameter standard, and supporting the signal attenuation module 20 to acquire the original signal.
Preferably, the burning software can support the measurement of the quality parameters of the power line, and the software supports obtaining the connection rate information of all the inter-chip interfaces (such as RGMII, SGMII, etc.) and the user interfaces (such as network ports) in the dut 50 and the standard prototype 40.
In the embodiment of the invention, the burning software closes the power line quality parameter measuring function and the interface connection rate information obtaining function after resetting so as to ensure that the running memory is not occupied; the software turns on the automatic transmit power function after resetting, so that the dut 50 is suitable for the certification standard and meets the use environment requirements of the product. For the product with the power line analog link channel capacity larger than the channel capacity of the user interface and the digital interface, the invention can still ensure the information of each detail of the standard prototype 40 through the burning software, and avoids the adaptability BUG of the traditional throughput (throughput) test.
As shown in fig. 2, in one embodiment of the present invention, the information processing module 100 includes an information collecting unit 110, an intelligent analysis unit 120, and an information storage unit 130;
the information collection unit 110 is configured to receive the signal to be tested sent from the standard prototype 40; the signal to be detected comprises an original power line quality signal and an interface connection rate signal; the parameter qualified standard comprises a power line quality signal standard and an interface connection rate signal standard;
the intelligent analysis unit 120 extracts the power line quality signal standard in the information storage unit 130, removes a portion of the original power line quality signal that meets the environmental noise, obtains a reconstructed power line quality signal, and determines whether the reconstructed power line quality signal meets the power line quality signal standard; if the reconstructed power line quality signal and the interface connection rate signal respectively accord with the power line quality signal standard and the interface connection rate signal standard, the machine to be tested is qualified;
the information storage unit 130 is used for storing the result obtained after the intelligent analysis unit 120 processes the data.
In the embodiment of the present invention, there are two criteria for determining the quality of the dut 50, one is the power line quality signal, and the other is the interface connection rate signal. The reason why these two signals are used as the qualification criteria is that the information processing module 100 can obtain a stable power line quality signal and an interface connection rate signal within 1 second of the power line conduction. The power line quality signal and the interface connection rate signal are transmitted by the own protocol of the network through the own communication protocol (such as Homeplug AV and G.hn) of the power line; the test time of a single product is 1 second, and compared with a traditional through put test scheme of 10 seconds to 1 minute, the test time is shortened, and the cost is lower.
As shown in fig. 2, in an embodiment of the present invention, the information processing module 100 further includes a signal triggering unit 140;
the signal triggering unit 140 sends a communication signal to the dut 40;
the signal attenuation module 20 receives the original signal transmitted by the dut 41, attenuates the original signal, and transmits the attenuated signal to the standard prototype 40;
the information collection unit 110 receives the signal to be measured transmitted from the prototype standard 40.
In an embodiment of the present invention, the signal triggering unit 140 is configured to send a communication signal with a duration of 1 second to the dut 50; the communication time length can be adjusted. The communication signal is used for providing an initial condition for the signal conduction of the whole line and collecting required information in specified communication time; the communication time can be adjusted, so that the product test has more data references.
As shown in fig. 2 and fig. 3, in an embodiment of the present invention, the information collecting unit 110 includes an information obtaining subunit 111, where the information obtaining subunit 111 is configured to obtain a standard power line quality signal and an interface connection rate setting value;
the signal triggering unit 140 is further configured to send one of the communication signals to the standard sampling machine 41;
the signal attenuation module 20 is further configured to receive the initial signal transmitted from the standard sampling prototype 41, attenuate the initial signal, and transmit the attenuated signal to the standard prototype 40;
the signal acquiring subunit 111 acquires the standard signal to be measured sent from the standard prototype 40; the standard signal to be tested comprises the standard power line quality signal and the interface connection rate set value;
the intelligent analysis unit 120 is further configured to process the standard power line quality signal and the interface connection rate setting value to obtain the power line quality signal standard and the interface connection rate signal standard.
Preferably, the intelligent analysis unit 120 stores the power line quality signal standard and the interface connection rate signal standard in the information storage unit 130 after obtaining the standards. Like the standard prototype 40, the standard sampling prototype 41 is also a standard product with low self-noise and good signal quality.
In an embodiment of the invention, obtaining the power line quality signal standard and the interface connection rate signal standard precedes product testing. Before testing the dut 50, the power line quality signal standard and the interface connection rate signal standard must be stored in the information storage unit 130.
As shown in fig. 2 and 3, in one embodiment of the present invention, the information acquiring subunit 111 is further configured to acquire the environmental noise on the standard prototype 50;
the information acquisition subunit 111 reads the environmental noise on the standard prototype 50.
In embodiments of the present invention, the product test is preceded by acquiring ambient noise. The interference of the standard sampling prototype 41 to the standard prototype 40 and the surrounding environment factors are taken as environmental noise, the environmental noise is measured, and the noise is taken as an environmental interference parameter.
In one embodiment, as shown in fig. 4, the present invention provides a method for controlling a test system of a power line communication product, the method including:
step S202, acquiring an original power line quality signal and an interface connection rate signal.
Step S204, removing the environmental noise in the original power line quality signal to obtain a reconstructed power line quality signal;
step S206, judging whether the prototype is qualified, if the reconstructed power line quality signal meets the power line quality signal standard and the interface connection rate signal is equal to the interface connection rate signal standard, the performance of the prototype is qualified, otherwise, the prototype is unqualified.
In the embodiment of the present invention, the execution subject of the method is the information processing module 100; the above embodiments have already described the implementation of steps S202 to S206, and are not described here again.
As shown in fig. 5, in an embodiment of the present invention, the method for obtaining the reconstructed power line quality signal in step S204 includes:
applying the communication signal to the machine under test 50 to obtain the original power line quality signal on the standard prototype 40;
the environmental noise is extracted from the information storage unit 130, and a portion of the original power line quality signal that meets the environmental noise is removed to obtain the reconstructed power line quality signal.
The above method may specifically comprise the steps of:
step S302, sequentially sending a communication signal to the N testers 50, where the communication time is 1 second.
Step S304, controlling the gating switch in the signal attenuation module 20 to sequentially turn on the N testers 50 and the 1 standard prototype 40.
And step S306, sequentially acquiring N groups of the original power line quality signals and the interface connection rate signals through the standard prototype 40.
Step S308, removing a portion of the original power line quality signal that meets the environmental noise, and obtaining the reconstructed power line quality signal.
In an embodiment of the present invention, the method may obtain a reconstructed power line quality signal. All power line signals of the present invention are obtained by a standard prototype 40; that is, the power line quality signal and the interface connection rate signal of the dut 50 are indirectly tested by the standard prototype 40. The test method is more convenient and fast, and the product test can be completed without connecting N testers 50 one by one; therefore, the operation is simple and reliable, no complex topological relation exists, and the production of a production line is facilitated.
As shown in fig. 6, in an embodiment of the present invention, step S206 may specifically include the following steps:
step S402, extracting the power line quality signal standard and the interface connection rate signal standard from the information storage unit 130.
Step S404, sequentially judging N groups of original power line quality signals and interface connection rate signals according to the obtained power line quality signal standard and interface connection rate signal standard; in a set of parameters, if the original power line quality signal meets the power line quality signal standard and the interface connection rate signal also meets the interface connection rate signal standard, the product quality of the dut 50 corresponding to the set of parameters is qualified; otherwise, the product is not qualified.
And step S406, sending the position information of the unqualified product to a user interface, and turning off the power supply of the unqualified product.
And step S408, sending an instruction to the qualified product, controlling the prototype burning software to complete product reset, and exiting the test mode.
In the embodiment of the present invention, the main execution body of the method is the information processing module 100; the above embodiment has already described the implementation of steps S402 to S408, and is not described here again.
In one embodiment, as shown in fig. 7, step S202 is preceded by a method of acquiring ambient noise; the embodiment is mainly exemplified by applying the method to the information processing module 100 of the system in fig. 3, and specifically may include the following steps:
step S502, controlling the gating switch in the signal attenuation module 20 to sequentially turn on the standard sampling prototype 41 and the standard prototype 40.
In step S504, N environmental noise parameters are sequentially acquired on the standard prototype 40 through the information collecting unit 110.
Step S506, analyzing the N environmental noise parameters by the intelligent analysis unit 120, to obtain N environmental noises.
In step S508, N ambient noises are stored in the information storage unit 130.
In the method for acquiring the environmental noise of the present embodiment, it is not necessary to use N standard sampling prototypes 41, and the environmental noise acquisition can be completed by using only one standard sampling prototype 41 — that is, one standard sampling prototype 41 can be sequentially connected to the signal attenuation module 20 and the coupling circuit module 30. The method reduces the use amount of the standard acquisition prototype 41, and can effectively save the cost of product testing.
In one embodiment, as shown in FIG. 8, step S202 is preceded by a method of training parameter qualification criteria; the present embodiment is mainly exemplified by applying the method to the information processing module 100 of the system in fig. 3, and specifically may include the following steps:
step S602, sending a communication signal to one of the standard sampling machines 41, where the communication time is 1 second.
Step S604, controlling the gating switch in the signal attenuation module 20 to turn on the standard sampling machine 41.
Step S606, acquiring the standard power line quality signal on the standard prototype 40; and acquiring connection rate set values of interfaces (such as RGMII, SGMII and the like) between chips and user interfaces (such as network ports) of the N standard acquisition prototypes 41.
Step S608, sequentially measuring the M standard power line quality signals when the standard sampling machines 41 access at the same position, to obtain a standard power line quality signal group, where one standard power line quality signal group includes M standard power line quality signals. (M is an integer of 1 or more)
Step S610, generating the power line quality signal standard by using the mean value of the M standard power line quality signals as a median and-10% as a tolerance judgment line through the analysis of the intelligent analysis unit 120, and storing the standard in the information storage unit 130; the connection rate setting value is analyzed by the intelligent analysis unit 120 to obtain the interface connection rate signal standard, and the interface connection rate signal standard is stored in the information storage unit 130.
Step S612, repeating steps S602 to S610N times, obtaining N power line quality signal standards, and storing the N power line quality signal standards in the information storage unit 130.
In the embodiment of the present invention, the execution subject of the method is the information processing module 100; the above embodiments have already described the implementation of steps S602 to S612, and are not described here again.
In one embodiment, the present invention provides an information processing system including an information processing module apparatus as shown in fig. 1, the apparatus including, when a product is tested:
and an information collecting unit 110 for acquiring the signal to be measured of the standard prototype 40.
The intelligent analysis unit 120 obtains the signal to be detected on the information collection unit 110, extracts the environmental noise and the parameter qualification standard from the information storage unit 130, and analyzes whether the signal to be detected meets the parameter qualification standard to obtain an analysis result.
An information storage unit 130 for storing the result obtained after the intelligent analysis unit 120 processes the data
Alternatively, in one embodiment, the present invention provides an information processing system including an information processing module apparatus as shown in fig. 3, which, when acquiring a parameter qualifying criterion, includes:
the information collection unit 110 is used for sequentially acquiring N standard power line quality signal groups from the standard prototype 40, wherein each group comprises M standard power line quality signals; interface connection rate set values of the N standard sampling machines 41 are obtained, and the set values are transmitted to the intelligent analysis unit 120.
The intelligent analysis unit 120 is used for analyzing the N standard power line quality signal groups to obtain N power line quality signal standards; and analyzing the N interface connection rate set values to obtain an interface connection rate signal standard.
An information storage unit 130, configured to store the power line quality signal standard and the interface connection rate signal standard.
Or, in one embodiment, the present invention provides an information processing system including an information processing module apparatus as shown in fig. 3, the apparatus including, when acquiring ambient noise:
the information collecting unit 110 sequentially obtains N environmental noise parameters from the standard sampling machine 41.
And the intelligent analysis unit 120 analyzes the N environmental noise parameters to obtain N environmental noises.
The information storage unit 130 stores N pieces of ambient noise.
FIG. 9 is a diagram illustrating an internal structure of a computer device in one embodiment. The computer device may specifically be the information processing module 100 in fig. 1. As shown in fig. 9, the computer apparatus includes a processor, a memory, a network interface, an input device, and a display screen connected through a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and also stores a computer program, and when the computer program is executed by the processor, the processor can realize a power line communication product testing method, an environmental noise collecting method and a training parameter qualified standard method. The internal memory may also store a computer program, and the computer program, when executed by the processor, may cause the processor to perform a power line communication product testing method, an environmental noise collection method, and a training parameter qualification method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 9 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, the apparatus for testing plc products provided in the present application may be implemented in the form of a computer program, which is executable on a computer device as shown in fig. 9. The memory of the computer device may store therein various program modules or units constituting the power line communication product testing apparatus, such as the information collecting unit 110, the intelligent analysis unit 120, and the information storage unit 130 shown in fig. 2. The computer program constituted by the respective program modules causes the processor to execute the steps in the methods S202 to S206 of the respective embodiments of the present application described in the present specification.
In one embodiment, a computer device is proposed, the computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
acquiring an original power line quality signal and an interface connection rate signal;
removing environmental noise in the original power line quality signal to obtain a reconstructed power line quality signal;
and judging whether the prototype is qualified, if the reconstructed power line quality signal meets the power line quality signal standard and the interface connection rate signal is equal to the interface connection rate signal standard, the performance of the prototype is qualified, otherwise, the prototype is unqualified.
In one embodiment, a computer readable storage medium is provided, having a computer program stored thereon, which, when executed by a processor, causes the processor to perform the steps of:
acquiring an original power line quality signal and an interface connection rate signal;
removing environmental noise in the original power line quality signal to obtain a reconstructed power line quality signal;
and judging whether the prototype is qualified, if the reconstructed power line quality signal meets the power line quality signal standard and the interface connection rate signal is equal to the interface connection rate signal standard, the performance of the prototype is qualified, otherwise, the prototype is unqualified.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by a computer program, which may be stored in a non-volatile computer readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
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 (9)
1. A power line communication product testing system, the system comprising:
the signal attenuation module is used for attenuating an original signal transmitted by the machine to be tested and transmitting the attenuated original signal to the standard prototype; the number of the standard sample machines is 1, the number of the machines to be tested is N, and N is an integer greater than or equal to 1;
the coupling circuit module is used for providing pure power supplies for the standard prototype and the to-be-tested machine;
the information processing module is used for acquiring a signal to be tested on the standard prototype, removing environmental noise in the signal to be tested and judging whether the signal to be tested is qualified or not according to a parameter qualification standard; the signal to be tested comprises the original signal;
the signal attenuation module comprises at least one attenuation channel and a gating switch, the attenuation channel is used for conducting the machine to be tested and the standard prototype, and the gating switch can select any one path of the attenuation channel to realize signal conduction.
2. The system according to claim 1, wherein burn-in software is embedded in the machine under test and the standard prototype, and is used for supporting the information processing module to acquire the signal under test, the environmental noise and the parameter qualification standard, and supporting the signal attenuation module to acquire the original signal.
3. The system of claim 1, wherein the information processing module comprises an information collection unit, an intelligent analysis unit, and an information storage unit;
the information collection unit is used for receiving the signal to be detected sent from the standard prototype; the signal to be detected comprises an original power line quality signal and an interface connection rate signal; the parameter qualified standard comprises a power line quality signal standard and an interface connection rate signal standard;
the intelligent analysis unit extracts the power line quality signal standard in the information storage unit, removes the part which accords with the environmental noise in the original power line quality signal, obtains a reconstructed power line quality signal, and judges whether the reconstructed power line quality signal accords with the power line quality signal standard; if the reconstructed power line quality signal and the interface connection rate signal respectively accord with the power line quality signal standard and the interface connection rate signal standard, the machine to be tested is qualified;
the information storage unit is used for storing results obtained after the intelligent analysis unit processes the data.
4. The system of claim 3, wherein the information processing module further comprises a signal triggering unit;
the signal trigger unit sends a communication signal to the machine to be tested;
the signal attenuation module receives the original signal transmitted by the machine to be tested, attenuates the original signal and transmits the attenuated signal to the standard prototype;
the information collection unit receives the signal to be tested transmitted by the standard prototype.
5. The system of claim 4, wherein the information collecting unit comprises an information obtaining subunit configured to obtain a standard power line quality signal and an interfacing rate set point;
the signal triggering unit is also used for sending the communication signal to a standard acquisition prototype;
the signal attenuation module is also used for receiving the initial signal transmitted by the standard acquisition prototype, attenuating the initial signal and transmitting the attenuated signal to the standard prototype;
the information acquisition subunit acquires a standard signal to be detected sent from the standard prototype; the standard signal to be tested comprises the standard power line quality signal and the interface connection rate set value;
the intelligent analysis unit is further configured to process the standard power line quality signal and the interface connection rate set value to obtain the power line quality signal standard and the interface connection rate signal standard.
6. The system of claim 5, wherein the information acquisition subunit is further configured to acquire environmental noise on the standard prototype;
and the information acquisition subunit reads the environmental noise on the standard prototype.
7. A control method of a test system for power line communication products, the method being applied to the test system for power line communication products of any one of claims 1 to 6, comprising the steps of:
acquiring an original power line quality signal and an interface connection rate signal;
removing environmental noise in the original power line quality signal to obtain a reconstructed power line quality signal;
and judging whether the prototype is qualified, if the reconstructed power line quality signal meets the power line quality signal standard and the interface connection rate signal is equal to the interface connection rate signal standard, the performance of the prototype is qualified, otherwise, the prototype is unqualified.
8. The method of claim 7, wherein the method of obtaining the reconstructed power line quality signal is:
applying a communication signal to a machine to be tested to obtain the original power line quality signal on a standard prototype;
and extracting the environmental noise from an information storage unit, removing a part which is in accordance with the environmental noise in the original power line quality signal, and obtaining the reconstructed power line quality signal.
9. A power line communication product testing apparatus comprising a memory and a processor, the memory having stored therein a computer program, the computer program, when executed by the processor, causing the processor to perform the steps of the control method of the power line communication product testing system according to any one of claims 7 and 8.
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| CN107888300A (en) * | 2017-11-06 | 2018-04-06 | 上海斐讯数据通信技术有限公司 | A kind of WIFI products adaptive testing system and method |
| US10859618B2 (en) * | 2018-04-25 | 2020-12-08 | T-Mobile Usa, Inc. | Radio access network testing enclosure |
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| CN1937435A (en) * | 2006-09-30 | 2007-03-28 | 东南大学 | Digital signal processing method for power line communication system |
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