CN113746501B - Test method for evaluating high-speed power line carrier HPLC deepening application function - Google Patents
Test method for evaluating high-speed power line carrier HPLC deepening application function Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
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Abstract
The invention discloses a test method for evaluating an HPLC deepening function, which comprises the steps of self-checking a simulation environment, installing an electric energy meter in an electric meter rack slot, connecting a test computer, importing electric meter file information, completing a synchronous flow, and ensuring that the meter file information is effective; uniformly powering on the ammeter, starting timing, inquiring network topology information every 10 seconds by using software, and comparing the addresses of the network-accessed slave nodes with the information of the meter file to finish self-checking; after the simulation environment self-checking is finished, the test of deepening the application function is carried out, wherein the test comprises a full-network networking test, an ID identification management test, a phase topology identification test, a high-frequency data acquisition test, a transformer area automatic identification test, a power failure and power failure active reporting test, a carrier module upgrading test and a file automatic synchronous clock accurate management test. According to the invention, the standard HPLC carrier wave is selected for networking the module to be tested, the frequency band is automatically set to keep the same frequency band as the module to be tested, the success rate of one-time networking is improved, the networking time is saved, and the detection efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of test simulation devices, in particular to a simulation device system and a test method for evaluating an HPLC deepening function.
Background
The HPLC is a high-speed power line carrier, is a broadband power line carrier technology for carrying out data transmission on a high-voltage power line, and the application of an HPLC communication module promotes the deep application of the intelligent ammeter function in the aspects of high-frequency data acquisition, active reporting in power failure, accurate clock management, phase topology identification, automatic station area identification, ID unified identification management, automatic file synchronization, communication performance monitoring, network optimization and other non-metering functions in the aspects of distribution network equipment monitoring, fault research and judgment, operation and maintenance management and the like.
At present, after the function debugging of the power supply station is successful, the power supply station can be upgraded in a large area by deepening the application function on site, the on-site test can be performed after the concentrator and the main station finish the upgrade, and the problems of long detection time, low efficiency, influence on the existing service and the like exist.
Thus, there is a need for an apparatus and test method for laboratory testing of HPLC communication modules to deepen application functions.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides a simulation device system and a test method for evaluating the deepening function of HPLC, which can overcome the defects of the prior art method.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the simulation device system for evaluating the HPLC deepening function comprises a concentrator module bottom plate MCU, a concentrator module slot, a power module, a serial port conversion module, a strong current relay, a strong current attenuator, an HPLC carrier module to be tested, an HPLC communication module to be tested, a noise generator, a three-phase power interface, a test upper computer, test software, an electric energy meter, an ammeter frame and an indicator light,
the concentrator module base plate MCU is connected with the strong-current relay and is made of a PCB, and the concentrator module slot, the power module and the serial port conversion module are integrated on the concentrator module base plate;
the concentrator module slot is used for receiving the test message sent by the upper computer through the RS232 port of the serial port conversion module, sending the test message to the concentrator communication module, and sending a PLC signal to the power line through the self-coupling circuit according to the test message by the concentrator communication module;
the power module is used for providing single-phase AC 220V voltage, slot DC12V and DC3.3V direct current voltage and is connected with the concentrator communication module bottom plate MCU;
the serial port conversion module is connected with the concentrator communication module slot and the test upper computer and is used for realizing the function of converting a TTL interface of the communication unit into RS 232;
the strong-current relay is connected with the bottom plate MCU, and simulates a power failure occasion by controlling the closing and opening of a power supply of the meter frame;
the strong electric attenuator is used for inputting and outputting AC 220V, and the attenuation performance of a carrier signal is greater than 60dB; the device is arranged at different positions of an ammeter frame, is connected with an ammeter through a power line, simulates the topology of a power supply network and simulates the environment of a site;
the HPLC carrier module to be tested is a concentrator HPLC carrier module, a single-phase table HPLC carrier module or a three-phase table HPLC carrier module;
the tested HPLC communication module comprises a concentrator communication module and an electric energy meter communication module, wherein the concentrator communication module is arranged in a slot of the concentrator communication module;
the noise generators are arranged at different positions of the ammeter frame, and simulate the real power line environment of the site by filling the collected site noise;
the three-phase power interface is connected with the power module and used for transmitting power to each electronic element;
the test upper computer is used for installing all test software;
the test software supports the power grid electricity consumption information acquisition communication protocol, and has the test case and the statistical function;
the electric energy meter is 13 standard electric meters, supports DLT645 and DLT698.45 protocols, is provided with two electric meter protocols with serial port baud rate self-adaption, is arranged in an electric energy meter slot of an electric meter frame, and is connected in parallel;
the electric meter frames are used for installing the electric energy meter and comprise 3 electric meter frames, each electric meter frame is powered by AC 220V, each electric meter frame is provided with 50 single-phase epitopes, different phase power supplies are adopted, and the cascading function of a power line of the multi-meter frame is supported;
and the indicator lamp is connected with each electronic element and the power supply module and is used for prompting the device state of the staff.
According to another aspect of the present invention, there is provided a test method for evaluating HPLC enhancement function, comprising the steps of:
s1, firstly, self-checking a simulation environment, and under the condition of no electrification, installing a concentrator HPLC carrier module to be tested in a concentrator module slot, and installing an electric energy meter in an electric energy meter slot of an electric meter frame;
s2, connecting a test upper computer, operating test software, and importing file information of a corresponding standard ammeter;
s3, after the file information is imported, a three-phase power supply is connected, and test software waits for 30 seconds after finishing the power-on flow and the table file synchronization flow of the concentrator HPLC through the file information message below the serial port conversion module to the concentrator HPLC carrier module according to the communication protocol, so that the table file information is ensured to be effective;
s4, controlling a strong-current relay through test software, uniformly powering on a standard ammeter arranged on an ammeter rack, starting timing by the test software, inquiring network topology information every 10 seconds by the software, and comparing the network access slave node address with the meter file information; the longest timeout time is 15 minutes, namely the self-checking is finished;
s5, after the simulation environment self-checking is completed, testing of deep application functions is carried out, wherein the testing comprises a full-network networking test, an ID identification management test, a phase topology identification test, a high-frequency data acquisition test, a station area automatic identification test, a power failure and power restoration active reporting test, a carrier module upgrading test and a file automatic synchronous clock accurate management test.
Further, the whole network networking test comprises the following steps:
s31, after the self-checking of the simulation environment is completed, if the number of the network access slave nodes is up to the time-out time, the address information is consistent with the table file information, the timing is finished, and the networking time and the number of the network access nodes are recorded; if the timeout time is up, the test case is terminated, and the networking time and the number of network access nodes are recorded;
s32, automatically generating a networking time, networking success rate and a report table of the number of nodes of each level by test software;
and S33, evaluating networking function, networking performance, establishing on-site initial installation service and recovering service before and after the station area power failure, and judging that the full-network networking test experiment is qualified if the networking time is less than 5 minutes and the networking success rate is 100 percent.
Further, the ID identification management test includes the steps of:
s41, after the simulation environment self-checking is completed, the testing software issues a command message for inquiring the local master node concentrator HPLC carrier chip ID information once according to a communication protocol;
s42, after the inquiry is successful or overtime, the test software issues an ID information command message of the carrier chip of the node electric energy meter according to the communication protocol until the ID inquiry is successful or the ID inquiry time is overtime, so as to form an ID identification information report table;
s43, evaluating the HPLC chip, and if the accuracy is 100%, judging that the ID mark management test experiment is qualified.
Further, the phase topology identification test comprises the following steps:
s51, after the simulation environment self-checking is completed, the testing software queries a phase identification result through a communication protocol, and the longest query timeout time is 60 minutes;
s52, if the number of the sites with the phase identification result and the zero fire identification result is equal to the number of the sites actually installed before the timeout time is inquired, ending the timing, and if the timeout time is up, ending the use case and ending the timing;
s53, after the inquiry is completed, the test software automatically records a phase identification result and a zero fire identification result to form a phase topology identification report table;
s54, evaluating the accuracy of phase topology identification, the phase line loss and the abnormal wiring identification capability, and judging that the phase topology identification test experiment is qualified if the phase identification success rate is more than 99% and the zero fire reverse connection identification success rate is more than 99%.
Further, the high frequency data acquisition test comprises the following steps:
s61, after the simulation environment self-checking is completed, the test software executes concurrent meter reading according to the number of concurrent numbers recommended by national network standards, the number of data frames is 5, and the execution time of the concurrent meter reading is 20 seconds per frame overtime and is not less than 4 hours;
s62, after meter reading is completed, the test software automatically records the total meter reading times, the meter reading success times and the total meter reading time length, and the meter reading success rate and the average time delay are counted to form a high-frequency data acquisition test report table;
and S63, evaluating the performance of high-frequency data acquisition and the supporting capability of on-site centralized meter reading service, and judging that the high-frequency data acquisition test experiment is qualified if the average meter reading time delay is less than 400ms per frame and the success rate is more than 99.5%.
Further, the automatic identification test of the station area comprises the following steps:
s71, after the self-checking of the simulation environment is completed, when the working mark of the uplink message from the running state is stopped and the platform area identification enabling mark is allowed, the platform area identification is started, and when the denial frame or the timeout is received, the test case is ended; when receiving the confirmation frame, the flow continues, waiting for the CCO to report the platform area identification result, and forming a platform area identification test report table;
s72, evaluating the area identification accuracy rate, line loss and other service supporting capacity in the field application environment, and if the identification accuracy rate is more than 95%, judging that the area automatic identification test experiment is qualified.
Further, the power-off and power-on active reporting test comprises the following steps:
s81, after the simulation environment self-checking is completed, the test software cuts off the power of the connected ammeter through the relay, the test software starts timing, waits for the CCO to report a power failure event, and the maximum timeout time is 10 minutes;
s82, before the timeout time, the reported power-off ammeter address is the same as the actual power-off ammeter address, and when the number of the reported power-off ammeter addresses is equal, the timing is finished, and if the timeout time is up, the test case is terminated, and the timing is finished;
s83, automatically recording the number of power-off ammeter, ammeter address, the number and address of ammeter reporting power-off, correctly reported ammeter, missed ammeter and false ammeter by test software to form a power-off and power-on active reporting test report table;
and S84, evaluating the success rate and the instantaneity of the power failure and power restoration active reporting, and judging that the power failure and power restoration active reporting test experiment is qualified if the success rate of the power failure and power restoration reporting is more than 90%, and the reporting delay is less than 90 seconds and the power restoration reporting success rate is more than 90%.
Further, the carrier module upgrade test includes the following steps:
s95: the test software refers to the process of remote upgrade of HPLC, simulates a master station and a concentrator to download files, and starts remote upgrade of a carrier module;
s96, after the file downloading is finished, the test software queries the upgrading states AFN10 and F4 with 10 seconds as a 1 period; if the upgrading timeout time is 1 hour and the CCO is not finished after the upgrading timeout time is exceeded, the upgrading failure is recorded, the test is finished, and if the CCO is judged to be finished within 1 hour, the test software inquires AFN10 and F104 and obtains the version information of the CCO and the STA;
s97, the test software automatically records the number of carrier modules which are successfully upgraded and failed and related information by comparing the version information to form a remote upgrading test report table;
and S98, evaluating the software version upgrading capability of the carrier module, and if the upgrading success rate is more than 99%, judging that the carrier module upgrading test experiment is qualified.
Further, the file automatic synchronous clock accurate management test comprises the following steps:
s101, after self-checking of a simulation environment is completed and an ammeter is electrified, the test software starts timing, the test software inquires network topology information once every 10 seconds, addresses of network access slave nodes are compared with the information of the meter file, all topology inquiry success or overtime time is checked, and meanwhile, the test software issues a broadcast starting command message and waits for the time of broadcast timing to take effect;
s102, performing round-robin, namely performing one round of copying, comparing a meter searching result with a file of the concentrator by the concentrator, forming an automatic synchronous test report table of the file when the information of the electric meter outside the file generates the time for finding an unknown electric energy meter, and simultaneously performing concurrent meter reading, wherein the number of meter reading items is 2, the number of concurrent meter reading is 1, and the number of frames is 2, so as to form a precise clock test report table;
and S103, evaluating the capability of the HPLC carrier module equipment file for automatically maintaining the correct rate and automatically searching the meter, if the reported file correct rate is more than 99%, judging that the file automatic synchronization experiment is qualified, and simultaneously, evaluating the capability of the ammeter clock deviation and clock time synchronization, and manually verifying the ammeter clock deviation, and if the test deviation error is less than 1 second, judging that the clock accurate management experiment is qualified.
The invention has the beneficial effects that: by using the analog concentrator as a copying control main device, the performance of the communication module to be tested is automatically and rapidly detected; the simultaneous detection of a plurality of HPLC carrier modules to be detected is realized by a concurrent meter reading mode; the simulation meter tool to be tested is provided, and the simulation meter tool to be tested is fast bound with the HPLC carrier module to be tested, so that the node time of the service process is shortened, and the networking efficiency is improved; the standard HPLC carrier module is selected for networking, the frequency band is automatically set to keep the same frequency band as the module to be tested, the success rate of one-time networking is improved, networking time is saved, and therefore detection efficiency is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a simulation device system for evaluating HPLC deepening function according to an embodiment of the present invention.
Fig. 2 is a schematic diagram showing test information interaction of a test method for evaluating HPLC deep functions according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a portable test box of a simulation device system for evaluating HPLC enhancement function according to an embodiment of the present invention.
In the figure: 1. and 2, a box body and a concentrator module to be tested.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of the present invention, and the above technical solutions of the present invention will be described in detail below by way of specific usage modes for convenience of understanding the present invention.
As shown in fig. 3, the simulation device system for evaluating HPLC deepening function according to the embodiment of the present invention includes a concentrator module bottom plate MCU, a concentrator module slot, a power module, a serial port conversion module, a strong electric relay, a strong electric attenuator, a HPLC carrier module to be tested, a HPLC communication module to be tested, a noise generator, a three-phase power interface, a test upper computer, test software, an electric energy meter, an ammeter stand, and an indicator light.
The concentrator module bottom plate MCU is connected with the strong-current relay and is made of a PCB, and the concentrator module slot, the power module and the serial port conversion module are integrated on the bottom plate of the concentrator module 2 to be tested.
The concentrator module slot is used for receiving the test message sent by the upper computer through the RS232 port of the serial port conversion module, sending the test message to the concentrator communication module, and sending the PLC signal to the power line through the self coupling circuit according to the test message by the concentrator communication module.
The power module is used for providing single-phase AC 220V voltage, slot DC12V and DC3.3V direct current voltage and is connected with the concentrator communication module bottom plate MCU.
The serial port conversion module is connected with the concentrator communication module slot and the test upper computer and is used for realizing the function of converting the TTL interface of the communication unit into RS 232.
The strong-current relay is connected with the bottom plate MCU, and simulates a power failure occasion by controlling the closing and opening of a power supply of the meter frame; the strong electric attenuator is used for inputting and outputting AC 220V, and the attenuation performance of a carrier signal is greater than 60dB; the power supply network topology simulation system is installed at different positions of an ammeter frame, is connected with an ammeter through a power line, and simulates the environment of a power supply network topology and a site.
The HPLC carrier module to be tested is a concentrator HPLC carrier module, a single-phase table HPLC carrier module or a three-phase table HPLC carrier module; the tested HPLC communication module comprises a concentrator communication module and an electric energy meter communication module, wherein the concentrator communication module is arranged in a slot of the concentrator communication module.
The noise generator is arranged at different positions of the ammeter frame, and the field real power line environment is simulated by filling the collected field noise.
The three-phase power interface is connected with the power module and used for transmitting power to each electronic element.
The test upper computer is used for installing all test software; the test software supports the power grid electricity consumption information acquisition communication protocol, and has the test case and the statistical function.
The electric energy meter is 13 standard electric meters, supports DLT645 and DLT698.45 protocols, is provided with two electric meter protocols with serial port baud rate self-adaption, is arranged in an electric energy meter slot of an electric meter frame, and is connected in parallel; the ammeter frame is used for installing the ammeter, comprises 3 ammeter frames, is supplied with power by AC 220V, and each ammeter frame is provided with 50 single-phase epitopes, adopts different phase power supplies and supports the cascading function of a power line of a plurality of ammeter frames.
And the indicator lamp is connected with each electronic element and the power supply module and is used for prompting the device state of the staff.
The concentrator module bottom plate MCU, the concentrator module slot, the power module, the serial port conversion module, the strong electric relay, the strong electric attenuator, the three-phase power interface and the like are combined into a portable test box. The portable test box is a flat box body with a cover, and a box body panel is provided with a concentrator module slot, a serial port conversion module connector, a three-phase power interface and an indicator lamp. The concentrator module bottom plate MCU, the power supply module, the serial port conversion module and the strong electric relay are arranged in a space below the panel.
According to another aspect of the present invention, there is provided a test method for evaluating HPLC enhancement function, comprising the steps of:
1. firstly, performing self-checking in a simulation environment, and under the condition of no electrification, installing a concentrator HPLC carrier module to be tested in a concentrator module slot, and installing an electric energy meter in an electric energy meter slot of an electric meter frame;
2. connecting a test upper computer, operating test software, and importing file information corresponding to the standard ammeter;
3. after the file information is imported, a three-phase power supply is connected, and test software waits for 30 seconds after finishing the power-on flow and the table file synchronization flow of the concentrator HPLC through the file information message below the serial port conversion module to the concentrator HPLC carrier module according to the communication protocol, so that the table file information is ensured to be effective;
4. the strong current relay is controlled by the test software, the standard ammeter arranged on the ammeter rack is powered on uniformly, the test software starts timing, the software inquires network topology information every 10 seconds, and the addresses of the network access slave nodes are compared with the information of the meter files; and the maximum timeout time is 15 minutes, thus completing the self-test.
5. After the simulation environment self-checking is finished, the test of deepening the application function is carried out, wherein the test comprises a full-network networking test, an ID identification management test, a phase topology identification test, a high-frequency data acquisition test, a transformer area automatic identification test, a power failure and power failure active reporting test, a carrier module upgrading test and a file automatic synchronous clock accurate management test.
After the self-checking of the simulation environment is completed, if the overtime time is up, if the number of the network access slave nodes is consistent with the address information and the table file information, the timing is finished, the networking time and the number of the network access nodes are recorded, if the overtime time is up, the test case is terminated, and the networking time and the number of the network access nodes are recorded; the test software automatically generates a networking time, networking success rate and a report table of the number of nodes at each level; and (3) evaluating networking functions, networking performance, establishing on-site initial installation service and recovering service before and after the station area outage fault, and judging that the full-network networking test experiment is qualified if the networking time is less than 5 minutes and the networking success rate is 100 percent.
After the simulation environment self-inspection is completed, the test software issues an order message for inquiring the local master node concentrator HPLC carrier chip ID information once according to a communication protocol; after the inquiry is successful or overtime, the test software issues an ID information command message of the carrier chip of the slave node electric energy meter according to the communication protocol until the ID inquiry is successful or the ID inquiry time is overtime, so as to form an ID identification information report table; and (5) evaluating the HPLC chip, and if the accuracy is 100%, judging that the ID mark management test experiment is qualified.
After the phase topology identification test is completed and the simulation environment self-test is completed, the test software queries the phase identification result through the communication protocol, and the longest query timeout time is 60 minutes; before the timeout time is queried, if the number of stations with the phase identification result and the zero fire identification result is equal to the number of stations actually installed, the timing is ended, and if the timeout time is up, the use case is ended, and the timing is ended; after the inquiry is completed, the test software automatically records a phase identification result and a zero fire identification result to form a phase topology identification report table; and (3) evaluating the accuracy rate of phase topology identification, the phase line loss and the identification capability of wiring abnormality, and judging that the phase topology identification test experiment is qualified if the phase identification success rate is more than 99% and the zero fire reverse connection identification success rate is more than 99%.
After the high-frequency data acquisition test is completed and the self-test of the simulation environment is completed, the test software executes concurrent meter reading according to the number of concurrent numbers suggested by national network standards, the number of data frames is 5, and the execution time of concurrent meter reading is 20 seconds per frame overtime and is not less than 4 hours; after the meter reading is completed, the test software automatically records the total meter reading times, the meter reading success times and the meter reading total time length, and counts the meter reading success rate and the average time delay to form a high-frequency data acquisition test report table; and (3) evaluating the performance of high-frequency data acquisition and the supporting capability of on-site centralized meter reading service, and judging that the high-frequency data acquisition test experiment is qualified if the average meter reading time delay per frame is less than 400ms and the success rate is more than 99.5%.
After the automatic identification test of the platform area is finished and the self-checking of the simulation environment is finished, when the working mark of the uplink message from the running state is stopped and the identification enabling mark of the platform area is allowed, the platform area identification is started, and when the denial frame or the timeout is received, the test case is ended; when receiving the confirmation frame, the flow continues, waiting for the CCO to report the platform area identification result, and forming a platform area identification test report table; and (3) evaluating the support capability of the service such as the identification accuracy rate of the area, line loss and the like in the field application environment, and if the identification accuracy rate is more than 95%, judging that the area automatic identification test experiment is qualified.
After the self-checking of the simulation environment is completed, the test software cuts off the power of the connected ammeter through the relay, the test software starts timing, waits for the CCO to report the power failure event, and the maximum timeout time is 10 minutes; before the timeout time, the reported power-off ammeter address is the same as the actual power-off ammeter address, and when the number is equal, the timing is ended, and if the timeout time is up, the test case is ended, and the timing is ended; the test software automatically records the number of power-off ammeter, ammeter address, ammeter number and ammeter address reporting power-off, correctly reported ammeter number, missed ammeter number and false ammeter number, and forms a power-off and power-on active reporting test report table; and evaluating the success rate and the instantaneity of the power failure and power restoration active reporting, and judging that the power failure and power restoration active reporting test experiment is qualified if the success rate of the power failure and power restoration reporting is more than 90%, the reporting delay is less than 90 seconds and the power restoration reporting success rate is more than 90%.
The carrier module upgrade test is carried out, test software refers to the process of HPLC remote upgrade, a simulation master station and a concentrator carry out file downloading, and remote upgrade of the carrier module is started; after the file downloading is finished, the test software queries the upgrading states AFN10 and F4 with 10 seconds as 1 period; if the upgrading timeout time is 1 hour and the CCO is not finished after the upgrading timeout time is exceeded, the upgrading failure is recorded, the test is finished, and if the CCO is judged to be finished within 1 hour, the test software inquires AFN10 and F104 and obtains the version information of the CCO and the STA; the test software automatically records the number of carrier modules successful and failed to upgrade and related information by comparing the version information to form a remote upgrade test report table; and evaluating the software version upgrading capability of the carrier module, and if the upgrading success rate is more than 99%, judging that the carrier module upgrading test experiment is qualified.
The file automatic synchronous clock accurate management test is performed, after the simulation environment self-checking is completed, after the ammeter is electrified, the test software starts timing, the test software inquires network topology information every 10 seconds, the addresses of the network access slave nodes are compared with the file information of the ammeter, all topology inquiry success or overtime time is checked, meanwhile, the test software issues a broadcast starting command message, and the broadcast timing time is waited to take effect; the method comprises the steps of carrying out round-robin, only carrying out one round of copying, comparing a meter searching result with a file of the concentrator by the concentrator, forming an automatic synchronous test report table of the file when the unknown electric energy meter time is found out by the electric energy meter information outside the file, simultaneously carrying out concurrent meter reading, wherein the number of meter reading items is 2, only carrying out one round of copying, the number of concurrent meter reading is 1, and the number of multiple frames is 2, so as to form a precise clock test report table; and (3) evaluating the capability of the HPLC carrier module equipment file for automatically maintaining the correct rate and automatically searching the meter, if the reported file correct rate is more than 99%, judging that the file automatic synchronization experiment is qualified, and simultaneously, evaluating the capability of the ammeter clock deviation and the clock time synchronization, and manually verifying the ammeter clock deviation, and if the test deviation error is less than 1 second, judging that the clock accurate management experiment is qualified.
The invention can simulate various field interference sources, simulate various power supply network layers, carry out statistical analysis on test data and output a detection report, ensure that the detection standard of a laboratory is matched with the actual application scene one by one, and improve the actual reliability of a simulation field; the method has the advantages of deepening detection of application functions, detecting high-frequency data acquisition functions, detecting power failure active reporting, detecting clock accurate management, detecting phase topology identification functions, automatically identifying a platform area, managing ID unified identification, automatically synchronizing files, monitoring communication performance, optimizing a network and the like, realizing automatic testing, and saving manpower and time cost.
The device main equipment is convenient to integrate and portable, can also be used for field test, and can complete the test by taking out the carrier module of the field concentrator and putting the carrier module on the slot of the tested concentrator module 2 of the portable box body 1, and simultaneously accessing the field three-phase power supply through the upper computer software of the notebook.
In summary, by means of the above technical solution of the present invention, by using the analog concentrator as the master device for shoveling control, automatic and rapid detection of the performance of the communication module to be detected is achieved; the simultaneous detection of a plurality of HPLC carrier modules to be detected is realized by a concurrent meter reading mode; the simulation meter tool to be tested is provided, and the simulation meter tool to be tested is fast bound with the HPLC carrier module to be tested, so that the node time of the service process is shortened, and the networking efficiency is improved; the standard HPLC carrier module is selected for networking, the frequency band is automatically set to keep the same frequency band as the module to be tested, the success rate of one-time networking is improved, networking time is saved, and therefore detection efficiency is greatly improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (1)
1. A test method for evaluating the deep application function of high-speed power line carrier HPLC is characterized in that the test method is applied to a simulation device system for evaluating the deep application function of HPLC,
the simulation device system comprises a concentrator module bottom plate MCU, a concentrator module slot, a power module, a serial port conversion module RS232, a strong electric relay, a strong electric attenuator, an HPLC carrier module to be tested, an HPLC communication module to be tested, a noise generator, a three-phase power interface, a test upper computer, an electric energy meter, 3 electric meter frames and an indicator light,
the concentrator module base plate MCU is connected with the strong-current relay, the concentrator module base plate MCU is made of a PCB, and the concentrator module slot, the power module and the serial port conversion module RS232 are integrated on the concentrator module base plate MCU;
the tested HPLC communication module comprises a concentrator communication module and an electric energy meter communication module, and the concentrator communication module is arranged in a concentrator module slot;
the concentrator module slot is used for receiving a test message sent by the test upper computer through the RS232 port of the serial port conversion module, and sending the test message to the concentrator communication module, and the concentrator communication module converts the test message into a power line carrier PLC signal and couples the power line carrier PLC signal to a power line through a coupling circuit in the concentrator communication module;
the power module is connected with the concentrator module bottom plate MCU and is used for providing single-phase AC 220V voltage, slot DC12V and DC3.3V direct current voltage;
the serial port conversion module RS232 is connected with the concentrator communication module and the test upper computer and is used for realizing the function of converting the TTL interface of the communication unit into RS 232;
the strong-current relay simulates a power failure occasion by controlling the closing and opening of a power supply of the ammeter frame;
the strong current attenuator is provided with an input voltage and an output voltage of AC 220V, and the attenuation performance of a carrier signal is greater than 60dB; the strong current attenuators are arranged at different positions of the ammeter frame, are connected with the ammeter through power lines, simulate the topology of a power supply network and simulate the environment of a site;
the HPLC carrier module to be tested is a concentrator HPLC carrier module, a single-phase table HPLC carrier module or a three-phase table HPLC carrier module;
the noise generators are arranged at different positions of the ammeter frame, and simulate the real power line environment of the site by filling the collected site noise;
the three-phase power interface is connected with the power module and is used for supplying power to each electronic element;
the test upper computer is used for installing test software, the test software supports the power grid electricity consumption information acquisition communication protocol and has test cases and statistical functions;
the electric energy meter is a 13-standard electric meter, serial port baud rate self-adaptive DLT645 and DLT698.45 electric meter protocols of the electric energy meter are installed in electric energy meter slots of an electric meter frame, and all the electric energy meters are connected in a parallel mode;
the 3 ammeter frames are used for installing the electric energy meter, each ammeter frame is provided with 50 single-phase epitopes, and the 3 ammeter frames adopt different phase power supplies and support a multi-meter-frame power line cascading function;
the indicator lamp is connected with each electronic element and the power supply module and used for prompting the device state of the staff;
the test method comprises the following steps:
s1: firstly, in the simulation environment of the self-checking device, under the condition of no electrification, an HPLC carrier module to be tested is arranged in a concentrator module slot, and an electric energy meter is arranged in an electric energy meter slot of an electric meter frame;
s2: connecting a test upper computer, operating test software, and importing electric energy meter file information corresponding to a standard electric energy meter;
s3: after the electric energy meter file information is imported, a three-phase power interface is accessed, test software sends the electric energy meter file information message to an HPLC carrier module to be tested through a serial port conversion module RS232 according to a communication protocol, and after the power-on process and the electric energy meter file information synchronization process of the HPLC carrier module to be tested are completed, the test software waits for 30 seconds to ensure that the electric energy meter file information is effective;
s4: the strong-current relay is controlled by the test software, the electric energy meter arranged on the electric meter frame is uniformly electrified, the test software starts timing, the test software inquires network topology information every 10 seconds, and the addresses of the network-connected slave nodes are compared with the file information of the electric energy meter; the longest timeout time is 15 minutes, namely the self-checking is finished;
s5: after the simulation environment self-test is completed, carrying out a test of a deepened application function, wherein the test of the deepened application function comprises a full-network networking test, an ID identification management test, a phase topology identification test, a high-frequency data acquisition test, a station area automatic identification test, a power failure and power restoration active reporting test, a carrier module upgrading test and a file automatic synchronous clock accurate management test;
the full-network networking test comprises the following steps:
s31: after the self-checking of the simulation environment is completed, if the number of the network access slave nodes, the address information and the table file information are consistent before the timeout time is reached, the timing is finished, and the networking time and the number of the network access nodes are recorded; if the timeout time is up, the test case is terminated, and the networking time and the number of network access nodes are recorded;
s32: the test software automatically generates a networking time, networking success rate and a report table of the number of nodes at each level;
s33: evaluating networking functions, networking performance, service recovery time before and after site initial installation service establishment and station area outage and restoration faults, and judging that the full-network networking test experiment is qualified if the networking time is less than 5 minutes and the networking success rate is 100%;
the ID identification management test comprises the following steps:
s41: after the simulation environment self-checking is completed, the testing software issues an ID information command message for inquiring the HPLC carrier chip of the local master node concentrator according to a communication protocol;
s42: after the inquiry is successful or overtime, the test software issues an ID information command message of the carrier chip of the slave node electric energy meter according to the communication protocol until the ID inquiry is successful or the ID inquiry time is overtime, so as to form an ID identification information report table;
s43: evaluating an HPLC chip, if the correctness of the ID identification information is 100%, judging that the ID identification management test experiment is qualified;
the phase topology identification test comprises the following steps:
s51: after the simulation environment self-checking is completed, the testing software queries the phase identification result through the communication protocol, and the longest query timeout time is 60 minutes;
s52: if the number of stations with the phase identification result and the zero fire identification result is equal to the number of stations actually installed before the timeout time is queried, the timing is ended, and if the timeout time is up, the use case is ended, and the timing is ended;
s53: after the inquiry is completed, the test software automatically records a phase identification result and a zero fire identification result to form a phase topology identification report table;
s54: evaluating the accuracy rate of phase topology identification, the phase line loss and the identification capability of wiring abnormality, and if the success rate of phase identification is more than 99% and the success rate of zero fire reverse connection identification is more than 99%, judging that the phase topology identification test experiment is qualified;
the high-frequency data acquisition test comprises the following steps:
s61: after the self-checking of the simulation environment is finished, the test software executes concurrent meter reading according to the number of concurrent numbers recommended by national network standards, the number of data frames is 5, and the execution time of the concurrent meter reading is 20 seconds per frame overtime and is not less than 4 hours;
s62: after the meter reading is completed, the test software automatically records the total meter reading times, the meter reading success times and the meter reading total time length, and counts the meter reading success rate and the average time delay to form a high-frequency data acquisition test report table;
s63: evaluating the high-frequency data acquisition performance and the support capability of the on-site centralized meter reading service, and judging that the high-frequency data acquisition test experiment is qualified if each frame of meter reading average time delay is less than 400ms and the success rate is more than 99.5%;
the automatic identification test of the station area comprises the following steps:
s71: after the self-checking of the simulation environment is finished, when the working mark of the uplink message from the running state is stopped and the identification enabling mark of the platform area is allowed, the platform area identification is started, and when the negative acknowledgement frame or the timeout is received, the test case is ended; when receiving the confirmation frame, the flow continues, waiting for the CCO to report the platform area identification result, and forming a platform area identification test report table;
s72: evaluating the identification accuracy of the area and the supporting capability of line loss service in the field application environment, if the identification accuracy is more than 95%, judging that the area automatic identification test experiment is qualified;
the power-off and power-on active reporting test comprises the following steps:
s81: after the simulation environment self-checking is completed, the test software cuts off the power of the connected ammeter through the relay, the test software starts timing, waits for the CCO to report a power failure event, and the maximum timeout time is 10 minutes;
s82: before the timeout time, the reported power failure ammeter addresses are the same as the actual power failure ammeter addresses, and when the reported power failure ammeter addresses are equal in number, the timing is finished, and if the timeout time is up, the test case is terminated, and the timing is finished;
s83: the test software automatically records the number of the power failure electric energy meters, the addresses of the electric energy meters, the number and the addresses of the electric energy meters reporting the power failure, the number of the electric energy meters correctly reported, the number of the electric energy meters missed to report and the number of the electric energy meters mistakenly reported, and forms a power failure and power restoration active reporting test report meter;
s84: evaluating the success rate and the instantaneity of the power failure and power restoration active reporting, and judging that the power failure and power restoration active reporting test experiment is qualified if the success rate of the power failure and power restoration reporting is more than 90%, the reporting delay is less than 90 seconds and the success rate of the power restoration reporting is more than 90%;
the carrier module upgrade test comprises the following steps:
s95: the test software refers to the process of remote upgrade of the HPLC, simulates the master station and the concentrator to download files, and starts remote upgrade of the HPLC carrier module to be tested;
s96: after the file downloading is finished, the test software inquires the upgrading state with 10 seconds as 1 period; if the upgrading timeout time is 1 hour and the upgrading is not finished yet, the central coordinator CCO records the upgrading failure and finishes the test, and if the upgrading of the CCO is judged to be finished within 1 hour, the testing software inquires the upgrading state and acquires the version information of the CCO and the station STA;
s97: the test software automatically records the number of the HPLC carrier modules to be tested and related information of successful and failed upgrading by comparing the version information to form a remote upgrading test report table;
s98: evaluating the software version upgrading capability of the HPLC carrier module to be tested, and if the upgrading success rate is more than 99%, judging that the carrier module upgrading test experiment is qualified;
the file automatic synchronous clock accurate management test comprises the following steps:
s101: after the simulation environment self-checking and ammeter power-on are completed, the test software starts timing, the network topology information is queried once every 10 seconds through the test software, the addresses of the network-accessed slave nodes are compared with the electric energy meter file information, all topology query success or overtime time is checked, meanwhile, the test software issues a broadcast starting command message, and the broadcast time checking time is waited to take effect;
s102: the method comprises the steps of carrying out round-robin, only copying one round, comparing a meter searching result with a self file of the concentrator by the concentrator, forming an automatic file synchronous test report table when an unknown electric energy meter is found, simultaneously carrying out concurrent meter reading, wherein the number of meter reading items is 2, only copying one round, the concurrent number is 1, and the number of frames is 2, so as to form a clock accurate test report table;
s103: and evaluating the automatic maintenance accuracy and the automatic meter searching capability of the to-be-tested HPLC carrier module equipment files, if the reported file accuracy is more than 99%, judging that the file automatic synchronization experiment is qualified, simultaneously, evaluating the clock deviation and the clock time setting capability of the electric energy meter, manually verifying the clock deviation of the electric energy meter, and if the clock deviation is less than 1 second, judging that the clock accurate management experiment is qualified.
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