CN110868328A - Performance detection system for dual mode communication device - Google Patents
Performance detection system for dual mode communication device Download PDFInfo
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Abstract
An embodiment of the present invention provides a performance detection system for a dual-mode communication device, including: a radio frequency matrix comprising at least one splitter and at least one adjustable attenuator, the radio frequency matrix being used to construct a topological environment by adjusting the at least one adjustable attenuator; the signal analyzer is connected with the radio frequency matrix and is used for acquiring signal waveforms from the radio frequency matrix; the signal generator is connected with the radio frequency matrix and is used for introducing noise to the radio frequency matrix; the central node shielding box is connected with the radio frequency matrix through a radio frequency line and used for placing equipment to be tested and inhibiting external interference signals; and the at least one slave node shielding box is connected with the radio frequency matrix through a radio frequency line and used for placing equipment to be tested and inhibiting external interference signals. By the technical scheme, the simulation environment of the power line carrier and micropower wireless dual-mode communication product can be realized.
Description
Technical Field
The invention relates to the field of power communication, in particular to a performance detection system for a power line carrier and micropower wireless dual-mode communication device.
Background
The electricity consumption information acquisition system is used as an important component for building a smart grid, bears the important tasks of automatic acquisition and real-time monitoring of electricity consumption information, and selects a stable, reliable, real-time and safe local communication mode, which is the key for ensuring the safe and stable operation of the system, and directly influences the reliability and the acquisition success rate of communication between a concentrator and an acquisition device (an electric energy meter).
The power line carrier communication technology can adapt to various service requirements. The high-speed power line carrier communication can realize the 24-hour real-time transmission of the mass power utilization information acquisition data, and various information can be acquired through the functions of district identification, phase identification and the like, so that the big data analysis becomes possible. In addition, the high-speed carrier supports the construction of a high-speed bidirectional communication network required by an intelligent target, and powerfully supports enterprise power utilization management, energy efficiency management and intelligent home interconnection. For electricity selling, power generation and electricity selling enterprises can obtain important data in time based on high-speed carrier waves, the purposes of production according to requirements and purchase according to requirements are achieved, marketized electricity trading is strongly supported, and benign development of marketized operation is promoted.
In the power consumption information acquisition communication technology, what generally adopt at present is power line carrier communication technology, along with the continuous propulsion of power consumption information system construction, the communication environment that intelligent ammeter and collection terminal quantity increase by a wide margin, cause the carrier wave is fairly abominable, and the wide application of power electronic device and frequency conversion equipment also makes electric wire netting electromagnetic environment more and more complicated, has caused the unstability of intelligent ammeter and collection terminal carrier communication performance.
Due to interference and attenuation on the power line, the micropower wireless technology has unique advantages, wireless communication effectively avoids interference and attenuation on the power line, the real-time performance of communication is powerfully guaranteed due to the high communication speed, but the wireless communication is easily interfered by the environment, and the signal attenuation is large when the wireless communication penetrates through a wall body and a building.
With the development of multi-meter centralized reading service requirements of national network companies, for example, the dual-mode communication technology based on the broadband power line carrier (HPLC) communication technology has the advantages that the advantages are embodied, the power line carrier and the powerless wireless communication are combined, the two are more complementary, the advantages and the disadvantages are brought forward, the respective advantages are brought into play, and the acquisition performance is more reliable.
The production and delivery of any equipment are tested by various indexes, the dual-mode communication technology also needs the detection of one equipment, and for the current detection equipment manufacturer, the platform body detection equipment is single and can only detect one communication mode, and no actual detection equipment exists for the dual-mode communication technology. Some manufacturers claim that technical indexes of dual-mode communication can be detected, and actually only tests on communication reliability and protocols are tested, but not communication performance. For dual-mode communication, not only the performance of carrier communication but also the performance of wireless communication, and the performance index and service efficiency when two communication modes are simultaneously communicated, need to be tested separately.
Disclosure of Invention
The invention aims to provide a performance detection system for dual-mode communication equipment, which can realize a simulation environment of a power line carrier and a micropower wireless dual-mode communication product.
In order to achieve the above object, an embodiment of the present invention provides a performance detection system for a dual mode communication device, including:
a radio frequency matrix comprising at least one splitter and at least one adjustable attenuator, the radio frequency matrix being used to construct a topological environment by adjusting the at least one adjustable attenuator;
the signal analyzer is connected with the radio frequency matrix and is used for acquiring signal waveforms from the radio frequency matrix;
the signal generator is connected with the radio frequency matrix and is used for introducing noise to the radio frequency matrix;
the central node shielding box is connected with the radio frequency matrix through a radio frequency line and used for placing equipment to be tested and inhibiting external interference signals;
and the at least one slave node shielding box is connected with the radio frequency matrix through a radio frequency line and used for placing equipment to be tested and inhibiting external interference signals.
In an embodiment of the present invention, the performance detection system further comprises:
the switch is connected with the radio frequency matrix, the signal generator, the central node shielding box and the at least one slave node shielding box through network cables; and
and the test upper computer is connected with the switch through a network cable and is used for setting, receiving and processing data aiming at the performance detection of the equipment to be tested.
In an embodiment of the present invention, the radio frequency matrix comprises:
a first 5-branch device, wherein a first port of the first 5-branch device is used for accessing the signal generator;
the first port of the second 5-branch device is used for accessing the signal generator;
a first communication link, wherein the first communication link comprises a plurality of adjustable attenuators and a plurality of 3 splitters which are alternately connected in series, and two adjustable attenuators which are respectively positioned at two ends of the first communication link are respectively connected with the second port of the first 5 splitters and the second port of the second 5 splitters;
a second communication link, where the second communication link includes a plurality of adjustable attenuators and a plurality of 3 splitters that are alternately connected in series, and two adjustable attenuators, which are located at two ends of the second communication link, of the plurality of adjustable attenuators are respectively connected to the third port of the first 5 splitters and the third port of the second 5 splitters;
a third communication link, wherein the first communication link includes a plurality of adjustable attenuators and a plurality of 3 splitters which are alternately connected in series, and two adjustable attenuators, which are respectively located at two ends of the third communication link, of the plurality of adjustable attenuators are respectively connected with the fourth port of the first 5 splitters and the fourth port of the second 5 splitters;
the fifth port of the first 5-branch, the fifth port of the second 5-branch, and the third port of the 3-branch are connected to the central node shield box and the at least one slave node shield box.
In an embodiment of the present invention, the third communication link further includes:
the first switch is used for controlling the connection and disconnection between the third communication link and the fourth port of the first 5-branch device;
and the second switch is used for controlling the connection and disconnection between the third communication link and the fourth port of the second 5-branch device.
In an embodiment of the invention, the first communication link comprises 4 adjustable attenuators and 3 splitters;
in an embodiment of the invention, the second communication link or the third communication link comprises 6 adjustable attenuators and 5 3 splitters
In an embodiment of the invention, the adjustable attenuator is an adjustable programmable attenuator.
In an embodiment of the present invention, the center node shield box or the slave node shield box includes:
a shielding box;
the power interface is arranged on the shielding box;
the network cable interface is arranged on the shielding box;
a radio frequency line interface arranged on the shielding box;
the equipment clamp is used for clamping equipment to be tested and is connected with the power interface and the network cable interface; and
and a first port of the 3-branch device is connected with the radio frequency line interface, a second port of the 3-branch device is connected with the equipment clamp, and a third port of the 3-branch device is connected with the radio frequency antenna.
In an embodiment of the present invention, the power interface includes a power line filter isolation device.
In an embodiment of the present invention, the equipment fixture includes a virtual electric energy meter tooling plate.
By the technical scheme, the simulation environment of the power line carrier and micropower wireless dual-mode communication product can be realized. By introducing instruments such as a frequency spectrograph and a signal generator, the working frequency band and the power spectral density of a dual-mode communication product can be detected, the transmitting power and the stray radiation can be detected, and the communication anti-noise performance can be detected. The performance detection system can detect the one-to-one point-to-point communication performance of the dual-mode module and can also detect the large-scale networking performance of the dual-mode communication module.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 shows a block diagram of a performance detection system for a power line carrier and micropower wireless dual mode communication device according to an embodiment of the invention;
FIG. 2 shows a schematic structural diagram of a radio frequency matrix according to an embodiment of the invention;
FIG. 3 shows a schematic structural view of a shielding cage according to an embodiment of the invention;
FIG. 4 is a schematic diagram showing the structure of a radio frequency matrix when networking and multi-table testing are applied; and
fig. 5 shows a schematic diagram of the structure of the radio frequency matrix when the station area identification test is applied.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
If there is a description in the embodiments of the present disclosure referring to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present disclosure.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With the popularization of the HPLC communication, various deepened application requirements follow the popularization of the HPLC communication, the HPLC can be basically and completely realized at present for the application requirements which cannot be realized by the previous narrowband carrier, and for dual-mode technical conditions, not only multi-table set reading but also station area identification, phase identification and possible other deepened applications need to be supported, and a single-performance test scheme for the current station body detection device cannot meet the test of the dual-mode communication, so that the detection of the dual-mode communication technology urgently needs the comprehensive upgrade and update of the station body. The dual-mode stage detection device has urgent needs, and the needs of the dual-mode stage are imperative in order to bring the dual-mode communication technology into play of the due technical advantages and solve the existing problem of centralized reading of multiple tables.
For the existing detection equipment, as seen from the prior art, no scheme of any platform body detection device has universal applicability, so that a single detection test device cannot meet the test of a dual-mode technology, and for a client, if a single product of a wireless communication technology or a single product of an HPLC communication technology is purchased, two platform body detection devices need to be purchased at the same time for detecting the performance of the client, the waste of resources is undoubtedly avoided, the material and material cost is increased, and the labor cost is possibly increased. The method can meet the requirements of customers, save the cost for the customers and avoid causing unnecessary resource waste. Therefore, the research of the project can improve the reliability of the detection equipment of the power utilization information acquisition system, solve the actual problems on site, effectively reduce unnecessary waste of manpower and material resources and generate considerable economic and social benefits.
In view of this, the embodiment of the present invention provides a performance detection system for a power line carrier and micro-power wireless dual-mode communication device. Fig. 1 shows a block diagram of a performance detection system for a power line carrier and micro-power wireless dual mode communication device according to an embodiment of the invention. As shown in fig. 1, the performance detection system may include:
a Radio Frequency (RF) matrix 110 including at least one splitter (one splitter corresponds to one N-type RF tap) and at least one adjustable attenuator, the radio frequency matrix 110 being configured to construct a topological environment by adjusting the at least one adjustable attenuator;
a signal analyzer 120 connected to the rf matrix 110 for obtaining signal waveforms from the rf matrix 110;
a signal generator 130 connected to the rf matrix 110 for introducing noise into the rf matrix 110;
the central node shielding box 140 is connected with the radio frequency matrix 110 through a radio frequency line, and is used for placing equipment to be tested and inhibiting external interference signals;
and at least one slave node shielding box 150 connected with the radio frequency matrix 110 through a radio frequency line and used for placing the device to be tested and suppressing external interference signals.
In a further embodiment of the present invention, the performance detection system may further include:
a switch 160 connected to the rf matrix 110, the signal generator 130, the central node shielding box 140, and the at least one slave node shielding box 150 through network cables; and
and the test upper computer 170 is connected with the switch 160 through a network cable and is used for setting, receiving and processing data aiming at the performance detection of the equipment to be tested.
Specifically, the signal analyzer 120 may be a measurement of signal parameters known to those skilled in the art for signal distortion, modulation, spectral purity, frequency stability, and intermodulation distortion. It may also be referred to as a frequency domain oscilloscope, a tracking oscilloscope, an analysis oscilloscope, a harmonic analyzer, a frequency characteristic analyzer, or a fourier analyzer, etc. In the embodiment of the present invention, the signal analyzer 120 can display the analysis result in an analog manner or a digital manner, and is mainly used for frequency domain analysis of radio frequency and microwave signals, including measuring power, frequency, distortion and the like of the signals.
The RF matrix 110 may contain a plurality of N-type RF connectors to which other devices (e.g., signal analyzer 120) may be connected via radio frequency lines.
The signal generator 130 may be a device known to those skilled in the art that can provide electrical signals of various frequencies, waveforms, and output levels. In the embodiment of the present invention, the signal generator 130 is used as a signal source for generating white noise, narrow band noise, impulse noise, etc. to simulate a field communication environment to evaluate the communication performance of the device in an actual communication environment.
The switch 160 may be a data switching device known to those skilled in the art and may be configured to perform the function of encapsulating and forwarding packets based on MAC address identification.
The test upper computer 170 may include a program or software that sets, receives, and processes data for performance testing of the devices to be tested. Examples of the test host computer 170 may include, for example, a computer, a mobile processing device, a server. The test host computer 170 may include a processor, memory, display, and the like.
Examples of a processor may include, but are not limited to, a general purpose processor, a special purpose processor, a conventional processor, a Digital Signal Processor (DSP), a plurality of microprocessors, one or more microprocessors in association with a DSP core, a controller, a microcontroller, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) circuits, any other type of Integrated Circuit (IC), a state machine, and the like.
Examples of memory may include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that may be used to store information that may be accessed by a processor.
Examples of displays may include, but are not limited to, Liquid Crystal Displays (LCDs), Light Emitting Diode (LED) displays, Organic Light Emitting Diode (OLED) displays.
The functionality of the test host computer 170 is described further below.
Fig. 2 shows a schematic structural diagram of the radio frequency matrix 110 according to an embodiment of the present invention. As shown in fig. 2, in an embodiment of the present invention, the rf matrix 110 may include:
a first 5-branch 112, a first port of the first 5-branch 112 is used for accessing the signal generator 130;
a second 5-branch 114, a first port of the second 5-branch 114 is used for accessing the signal generator 130;
a first communication link 115, the first communication link 115 comprising a plurality of adjustable attenuators ATT and a plurality of 3-splitters T alternately connected in series, two adjustable attenuators of the plurality of adjustable attenuators respectively located at both ends of the first communication link 115 being respectively connected with the second port of the first 5-splitter 112 and the second port of the second 5-splitter 114;
a second communication link 116, where the second communication link 116 includes a plurality of adjustable attenuators and a plurality of 3 splitters that are alternately connected in series, and two adjustable attenuators of the plurality of adjustable attenuators that are respectively located at two ends of the second communication link 116 are respectively connected to the third port of the first 5 splitter 112 and the third port of the second 5 splitter 114;
a third communication link 117, wherein the first communication link 115 includes a plurality of adjustable attenuators and a plurality of 3 splitters which are alternately connected in series, and two adjustable attenuators at two ends of the third communication link 117 are respectively connected to the fourth port of the first 5 splitter 112 and the fourth port of the second 5 splitter 114;
the fifth port of the first 5-branch 112, the fifth port of the second 5-branch 114, and the third port of the 3-branch are connected to the center node shield box 140 and at least one slave node shield box 150.
Specifically, the splitter may be a device known to those skilled in the art for splitting an input signal into multiple outputs, or vice versa for combining multiple signals into one output.
As shown in FIG. 2, in a preferred embodiment of the present invention, the first communication link 115 may include 4 adjustable attenuators (ATT 7-10) and 3 splitters. The second communication link 116 may include 6 adjustable attenuators (ATT 1 ~ 6) and 5 3 splitters. The third communication link 117 may include 6 adjustable attenuators (ATTs 11-16) and 5 3 splitters. It will be appreciated by those skilled in the art that any of the first communication link 115, the second communication link 116, and the third communication link 117 may include any number of adjustable attenuators and 3-splitters. The second communication link 116 and the third communication link 117 may be symmetrically connected with respect to the first communication link 115. In addition, the 3-branch device can be replaced by other multi-port branching devices with more than 3 ports, such as 4-branch device, 5-branch device, etc.
With continued reference to fig. 2, in the embodiment shown in fig. 2, one port of each of the two 5-splitters and a port of the 13 3-splitters may be used to provide 15 ports for connecting 15 shielded boxes (including the center node shielded box 140 and the slave node shielded boxes 150) (e.g., circles numbered 1-15 in the figure). For example, splitters (i.e., splitters connected by an adjustable attenuator) at the same end of the first communication link 115, the second communication link 116, and the third communication link 117 may be used to access the SNR/NTB tested CCO (central coordinator node), the SNR accompanied by test CCO, and the NTB accompanied by test CCO, respectively. One port of the first 5-branch 112 and one port of the second 5-branch 114 may be used to access the signal generator 130, introducing noise. As shown in fig. 2, noise is introduced from two paths in a bilateral symmetry manner, so that the networking form of the radio frequency matrix 110 is more flexible, and different topological structures can be formed as required.
In an embodiment of the present invention, a switch may be connected between the first port of the first 5-way splitter 112 and the signal generator 130, for controlling access to the signal generated by the signal generator 130. A switch may be connected between the first port of the second 5-branch 114 and the signal generator 130 for controlling access to the signal generated by the signal generator 130.
In an embodiment of the present invention, the third communication link 117 may further include:
a first switch K1, configured to control on/off between the third communication link 117 and the fourth port of the first 5-way splitter 112;
a second switch K2 for controlling the connection/disconnection between the third communication link 117 and the fourth port of the second 5-way splitter 114.
Although only the first switch K1 and the second switch K2 of the third communication link 117 are shown in fig. 2, it will be understood by those skilled in the art that the second communication link 116 may also have a switch that controls the on/off between the first 5-branch 112 and/or the second 5-branch 114. Likewise, the first communication link 115 may also have a switch that controls the switching with the first 5-branch 112 and/or the second 5-branch 114.
Examples of switches may include, but are not limited to, mechanical switches (e.g., push-button switches, knife switches) and controllable switches (e.g., relays, transistors, MOS transistors, IGBTs, etc.). In the case where the switch is a controllable switch, the controllable switch may be controlled by the test upper computer 170.
The adjustable attenuator is an electronic component providing attenuation, and can be mainly used for adjusting the signal size in a circuit, improving impedance matching and the like. In an embodiment of the invention, the adjustable attenuator may be an adjustable programmable attenuator. The adjustment step value of the adjustable attenuator may be, for example, 1 dB. The adjustable attenuator can support an attenuation adjustment range of 0-127 dB.
The access and the hierarchy regulation of each node can be realized through the radio frequency matrix 110, and a star topology and a tree topology can be realized.
Fig. 3 shows a schematic structural view of a shielding cage according to an embodiment of the present invention. As shown in fig. 3, in an embodiment of the present invention, the central node shielding box 140 or the slave node shielding box 150 may include:
a shielding box;
the power interface is arranged on the shielding box;
the network cable interface is arranged on the shielding box;
a radio frequency line interface arranged on the shielding box;
the equipment clamp 210 is used for clamping equipment to be tested, and the equipment clamp 210 is connected with the power interface and the network cable interface; and
the 3-branch device 220, a first port of the 3-branch device 220 is connected to the rf line interface, a second port is connected to the device clamp, and a third port is connected to the rf antenna 230.
Specifically, the shielding case can be designed as a low-frequency shielding case, and can realize the spatial signal shielding of 2 communication modes of high-speed carrier 0.7-12 MHz signals and micropower wireless 470-510 MHz signals. The shielded enclosure may have an openable and closable door (e.g., power door 250) for loading and removing devices under test into and from the shielded enclosure.
In an embodiment of the present invention, the power interface may include a filter isolation device 240. For example, the filter isolation device 240 may include a power line filter isolation device, such as a filter circuit and an isolation circuit. 220V strong current can be introduced into the box body to solve the problem of broadband carrier zero-crossing detection, and signals conducted on an external carrier power line and radiated in the air can be isolated.
In an embodiment of the present invention, the device clamp may include a virtual electric energy meter tooling plate. The virtual electric energy meter tooling plate can have the same or similar components and structures as the actual electric energy meter tooling plate.
The central node shielding box 140 may be used to house central node devices under test, and the shielding box may shield the mutual radiation interference from the space and provide a clean power supply and test environment by isolating the power supply. For example, the central node shielding boxes 140 may be used to load master node testing equipment, and each shielding box may be provided with a concentrator local communication module therein, and the concentrator local communication module is isolated from the slave node shielding boxes and the testing equipment by an adjustable attenuator, and can shield mutual radiation interference from space, thereby providing a clean network environment. A clean power environment is provided by the isolated power supply.
The slave node shielding box 150 can be used for placing the slave node equipment to be tested, and the shielding room can shield mutual radiation interference from the space and provide a pure power supply and a testing environment by isolating the power supply. For example, the slave node shielding boxes 150 may be configured to load child node testing equipment, and each shielding box has a plurality of (e.g., 20) child node testing modules, a plurality of (e.g., 5) dual-mode II sampling modules, and a plurality of (e.g., 4) water-gas meters disposed therein, and is isolated from the central node shielding box and the testing instrument by an adjustable attenuator in a network, and can shield mutual radiation interference from a space, thereby providing a pure network environment. A clean power environment is provided by the isolated power supply.
One application of the performance detection system provided by the embodiment of the invention can be used for detecting whether a local communication unit of a national grid core low-voltage concentrator and a local communication unit of a single/three-phase electric energy meter meet related communication unit detection specifications in the aspects of radio frequency performance, protocol consistency, station area identification, multi-mode acquisition and the like, and simulating the actual working condition environment of the communication unit by means of simulating multi-level network topology, introducing noise, station area crosstalk and the like, so that the networking characteristics of the communication unit are detected, and corresponding tests are carried out by combining the service functions (such as data reading, event reporting, broadcast timing, station area identification, multi-meter acquisition and the like) of the communication unit, so that the full performance detection of the communication unit is realized.
According to the technical requirements, the performance detection system can be mainly divided into three subsystems: the system comprises a networking communication simulation test subsystem, a platform area identification test subsystem and a multi-meter acquisition function test subsystem. The main detection ranges of the subsystems are as follows:
1. networking communication simulation test subsystem: detecting service application indexes of the communication unit in a typical networking environment by simulating scenes such as large-scale networking, path attenuation, noise interference and the like: the method comprises meter reading success rate statistics, agent change, offline site, event reporting, broadcast timing information and the like. The method can simulate typical scene test and has the capability of simulating and testing the multi-layer networking simulation service.
2. The platform district discerns the test subsystem: the method is used for detecting the station area identification of the HPLC communication unit and relevant function specifications thereof, simulating different station area scenes and supporting simulation of various scenes with high discrimination, medium discrimination and low discrimination of SNR (signal-to-noise power ratio) and NTB (network reference time).
3. The multi-meter acquisition function test subsystem: the method has the advantages of collecting electricity, water, gas and heat meter data, supporting dual-mode II collection, supporting arbitrary relay jump control and simulation, and supporting fusion dual-mode test. And a multi-meter acquisition test environment is set up, communication channel isolation control of different frequency bands is supported, and power line and wireless integration multi-meter acquisition communication module test is supported.
Fig. 4 shows a schematic structural diagram of the rf matrix 110 when networking and multi-table testing (subsystem 1 and subsystem 3) are applied. As shown in fig. 4, in both cases of the application, the first communication link 115, the second communication link 116 and the third communication link 117 are enabled, and one port of one 3-branch at both ends of the second communication link 116 is used for connecting a main test CCO (central coordinator node), for example, located in the central node shielding box 140. The ports of the other 3-splitters and 5-splitters may be connected to the device under test in the slave node shielding cage 150. In this application, the signal generator 130 introduces the noise signal through two 5-branches.
Fig. 5 shows a schematic diagram of the structure of the radio frequency matrix 110 when the station identification test (subsystem 2) is applied. As shown in fig. 5, in this application scenario, first communication link 115 and second communication link 116 are enabled and third communication link 117 is disabled. For example, the third communication link 117 may be switched off (disabled) by adjusting two adjustable attenuators in the third communication link 117 that are connected to the first communication link 115. In this case, the introduction of noise (e.g., by the switch cutoff signal generator 130) is not required.
In the networking performance test process, the following steps can be included:
1. each shielding room is provided with a tested central node and a slave node communication module;
2. synchronizing the address and other file information of each slave node in the central node;
3. inquiring topology information in real time, waiting for networking completion and ensuring topology stability;
4. and counting networking success rate, networking time consumption, networking level and the like.
In the multi-table test process, the following steps can be included:
1. each shielding room is provided with a tested central node and a slave node communication module;
2. the synchronous center node comprises archive information such as addresses of all slave nodes and the like, and the archive information comprises an electric water-gas heat meter module;
3. inquiring topology information in real time, waiting for networking completion and ensuring topology stability;
4. counting networking success rate, networking time consumption and networking level;
5. and reading the data of the electric water-gas-heat meter (the data can be read for multiple times), and counting the reading success rate, the reading time and the like.
In the stage area identification test process, the following steps can be included:
1. constructing a star or tree topology environment of the RF matrix;
2. setting the value of the RF matrix programmable attenuator;
3. powering on the central node A, and starting the station area identification;
4. after networking is finished, the isocenter node A inquires topological information;
5. powering up the central node B, and starting the station area identification;
6. after the identification of the transformer area is completed, inquiring topological information and waiting for the stability of the topology;
7. and stopping the station area identification and judging the correctness of the station area identification.
The performance detection system provided by the embodiment of the invention can realize the simulation environment of the power line carrier and micropower wireless dual-mode communication product. By introducing instruments such as a frequency spectrograph and a signal generator, the working frequency band and the power spectral density of a dual-mode communication product can be detected, the transmitting power and the stray radiation can be detected, and the communication anti-noise performance can be detected. The performance detection system can detect the one-to-one point-to-point communication performance of the dual-mode module and can also detect the large-scale networking performance of the dual-mode communication module.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above is merely an embodiment of the present application, and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A performance detection system for a dual mode communication device, comprising:
a radio frequency matrix comprising at least one splitter and at least one adjustable attenuator, the radio frequency matrix being used to construct a topological environment by adjusting the at least one adjustable attenuator;
the signal analyzer is connected with the radio frequency matrix and is used for acquiring signal waveforms from the radio frequency matrix;
the signal generator is connected with the radio frequency matrix and is used for introducing noise to the radio frequency matrix;
the central node shielding box is connected with the radio frequency matrix through a radio frequency line and used for placing equipment to be tested and inhibiting external interference signals;
and the at least one slave node shielding box is connected with the radio frequency matrix through a radio frequency line and used for placing equipment to be tested and inhibiting external interference signals.
2. The performance testing system of claim 1, further comprising:
the switch is connected with the radio frequency matrix, the signal generator, the central node shielding box and the at least one slave node shielding box through network cables; and
and the test upper computer is connected with the switch through a network cable and is used for setting, receiving and processing data aiming at the performance detection of the equipment to be tested.
3. The performance detection system of claim 1, wherein the radio frequency matrix comprises:
a first 5-branch device, wherein a first port of the first 5-branch device is used for accessing the signal generator;
the first port of the second 5-branch device is used for accessing the signal generator;
a first communication link, wherein the first communication link comprises a plurality of adjustable attenuators and a plurality of 3 splitters which are alternately connected in series, and two adjustable attenuators which are respectively positioned at two ends of the first communication link are respectively connected with the second port of the first 5 splitters and the second port of the second 5 splitters;
a second communication link, where the second communication link includes a plurality of adjustable attenuators and a plurality of 3 splitters that are alternately connected in series, and two adjustable attenuators, which are located at two ends of the second communication link, of the plurality of adjustable attenuators are respectively connected to the third port of the first 5 splitters and the third port of the second 5 splitters;
a third communication link, wherein the first communication link includes a plurality of adjustable attenuators and a plurality of 3 splitters which are alternately connected in series, and two adjustable attenuators, which are respectively located at two ends of the third communication link, of the plurality of adjustable attenuators are respectively connected with the fourth port of the first 5 splitters and the fourth port of the second 5 splitters;
the fifth port of the first 5-branch, the fifth port of the second 5-branch, and the third port of the 3-branch are connected to the central node shield box and the at least one slave node shield box.
4. The performance detection system of claim 3, wherein the third communication link further comprises:
the first switch is used for controlling the connection and disconnection between the third communication link and the fourth port of the first 5-branch device;
and the second switch is used for controlling the connection and disconnection between the third communication link and the fourth port of the second 5-branch device.
5. The performance detection system of claim 3, wherein the first communication link comprises 4 adjustable attenuators and 3 splitters.
6. The performance detection system of claim 3, wherein the second communication link or the third communication link comprises 6 adjustable attenuators and 5 3 splitters.
7. The performance detection system of claim 1, wherein the adjustable attenuator is an adjustable programmable attenuator.
8. The performance testing system of claim 1, wherein said central node shielding cage or said slave node shielding cages comprise:
a shielding box;
the power interface is arranged on the shielding box;
the network cable interface is arranged on the shielding box;
a radio frequency line interface arranged on the shielding box;
the equipment clamp is used for clamping equipment to be tested and is connected with the power interface and the network cable interface; and
and a first port of the 3-branch device is connected with the radio frequency line interface, a second port of the 3-branch device is connected with the equipment clamp, and a third port of the 3-branch device is connected with the radio frequency antenna.
9. The performance detection system of claim 8, wherein the power interface comprises a power line filter isolation device.
10. The performance testing system of claim 8, wherein the equipment fixture comprises a virtual power meter tooling plate.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113395086A (en) * | 2021-06-15 | 2021-09-14 | 国网北京市电力公司 | Test system and method for dual-mode communication device, and nonvolatile storage medium |
| CN114301065A (en) * | 2022-01-04 | 2022-04-08 | 南京大全电气研究院有限公司 | Method and device for automatically identifying station area user change relationship |
| CN115314131A (en) * | 2021-12-10 | 2022-11-08 | 中国电力科学研究院有限公司 | Device and method for testing communication performance and protocol of dual-mode communication unit |
| CN115426303A (en) * | 2022-08-30 | 2022-12-02 | 青岛鼎信通讯股份有限公司 | Dual-mode testing system and method based on TTCN3 |
| CN115632682A (en) * | 2022-09-30 | 2023-01-20 | 国网重庆市电力公司营销服务中心 | Dual-mode module zero crossing point time acquisition performance testing device and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162530A (en) * | 2015-06-25 | 2015-12-16 | 深圳市国电科技通信有限公司 | System for detecting hardware performance of micropower wireless communication module |
| CN106332170A (en) * | 2016-08-24 | 2017-01-11 | 国网重庆市电力公司客户服务中心 | Broadband carrier communication performance detecting system |
| CN107294630A (en) * | 2017-08-22 | 2017-10-24 | 广东电网有限责任公司电力科学研究院 | A kind of emulation test system of carrier wave micropower bimodulus module |
| CN108233989A (en) * | 2018-01-03 | 2018-06-29 | 深圳市国电科技通信有限公司 | A kind of intelligent grid wideband power carrier communication detecting system and its detection method |
| CN110267293A (en) * | 2019-06-04 | 2019-09-20 | 国网辽宁省电力有限公司电力科学研究院 | A kind of communication unit simulation detection system |
| CN110519108A (en) * | 2019-09-24 | 2019-11-29 | 深圳市国电科技通信有限公司 | A kind of constructing communication network environment construction method |
| CN211018853U (en) * | 2019-12-23 | 2020-07-14 | 深圳市国电科技通信有限公司 | Performance detection system for dual mode communication device |
-
2019
- 2019-12-23 CN CN201911342883.3A patent/CN110868328B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162530A (en) * | 2015-06-25 | 2015-12-16 | 深圳市国电科技通信有限公司 | System for detecting hardware performance of micropower wireless communication module |
| CN106332170A (en) * | 2016-08-24 | 2017-01-11 | 国网重庆市电力公司客户服务中心 | Broadband carrier communication performance detecting system |
| CN107294630A (en) * | 2017-08-22 | 2017-10-24 | 广东电网有限责任公司电力科学研究院 | A kind of emulation test system of carrier wave micropower bimodulus module |
| CN108233989A (en) * | 2018-01-03 | 2018-06-29 | 深圳市国电科技通信有限公司 | A kind of intelligent grid wideband power carrier communication detecting system and its detection method |
| CN110267293A (en) * | 2019-06-04 | 2019-09-20 | 国网辽宁省电力有限公司电力科学研究院 | A kind of communication unit simulation detection system |
| CN110519108A (en) * | 2019-09-24 | 2019-11-29 | 深圳市国电科技通信有限公司 | A kind of constructing communication network environment construction method |
| CN211018853U (en) * | 2019-12-23 | 2020-07-14 | 深圳市国电科技通信有限公司 | Performance detection system for dual mode communication device |
Non-Patent Citations (2)
| Title |
|---|
| 杨鹏飞;张哲;王凯成;赵东艳;唐晓柯;: "兼容电力线载波与微功率无线的测试方法与实现", 电力信息与通信技术, no. 03, pages 69 - 73 * |
| 王学良;李蕊;羡慧竹;刘庆扬;付美明;: "智能电网电力线宽带载波通信测试系统关键技术研究", 电力信息与通信技术, no. 05, pages 82 - 88 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113395086A (en) * | 2021-06-15 | 2021-09-14 | 国网北京市电力公司 | Test system and method for dual-mode communication device, and nonvolatile storage medium |
| CN115314131A (en) * | 2021-12-10 | 2022-11-08 | 中国电力科学研究院有限公司 | Device and method for testing communication performance and protocol of dual-mode communication unit |
| CN114301065A (en) * | 2022-01-04 | 2022-04-08 | 南京大全电气研究院有限公司 | Method and device for automatically identifying station area user change relationship |
| CN114301065B (en) * | 2022-01-04 | 2023-10-03 | 南京大全电气研究院有限公司 | Automatic identification method and device for household transformer relation of transformer area |
| CN115426303A (en) * | 2022-08-30 | 2022-12-02 | 青岛鼎信通讯股份有限公司 | Dual-mode testing system and method based on TTCN3 |
| CN115426303B (en) * | 2022-08-30 | 2023-12-08 | 青岛鼎信通讯股份有限公司 | Test method for testing dual-mode communication unit |
| CN115632682A (en) * | 2022-09-30 | 2023-01-20 | 国网重庆市电力公司营销服务中心 | Dual-mode module zero crossing point time acquisition performance testing device and method |
| CN115632682B (en) * | 2022-09-30 | 2024-06-18 | 国网重庆市电力公司营销服务中心 | Dual-mode module zero crossing point moment acquisition performance testing device and method |
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