CN109613467B - Test equipment and test method for realizing multi-meter test of simulation site - Google Patents
Test equipment and test method for realizing multi-meter test of simulation site Download PDFInfo
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Abstract
The invention discloses a test device for realizing multi-meter test of a simulation site, which comprises a communication driving module, a communication interface, a transmission module and a test module, wherein the communication driving module is used as a communication interface for interacting with acquisition equipment and provides a transmission channel in a carrier communication mode; the protocol setting selection module is used for selecting a corresponding communication protocol according to a field application scene and simulating a corresponding test application scene; the meter reading processing module receives and responds to a meter reading command issued by the acquisition equipment; the permission setting module selects the electric energy meter to be copied through the blacklist address and the white list address; and the judging module is used for judging whether the address of the electric energy meter executing the reading command falls into the blacklist address or the whitelist address and making a corresponding response. The test equipment provided by the invention can be suitable for test application scenes of various acquisition communication modes and mixed acquisition modes in a centralized meter reading scheme in the power industry.
Description
Technical Field
The invention relates to a test device and a test method for realizing multi-meter test in a simulation field.
Background
The prior collecting equipment is limited in the laboratory test environment by the fact that the number of sample machines of the electric energy meter connected to the equipment is small, and the relevant performances of the collecting equipment in the data acquisition success rate, the stability and the meter reading efficiency cannot be visually tested, in practical application, the number of users in a power distribution area is about 500-1000 households, even more than 1000 households of many users in a large area, and the performances of the data acquisition success rate, the data storage and the meter reading efficiency of the collecting equipment in the large area cannot be truly tested in the laboratory test environment.
The current meter installed on site has two main protocol types, namely DL/T-6452007 and DL/T-698 object-oriented protocols, are installed in a mixed mode, and the acquisition equipment needs to support data acquisition of the two meter protocols at the same time, and needs to test the meter reading efficiency and effect of the acquisition equipment in an environment with various mixed meters.
The large-capacity data acquisition is an examination index of the acquisition success rate, the data storage and the meter reading efficiency of the examination concentrator, and is also an embodiment of the high quality and the performance of acquisition equipment.
Under the factory laboratory environment, a real field test environment is simulated, the data acquisition success rate, stability and efficiency of acquisition equipment are tested, thousands of meters need to be installed in a laboratory, or a real electric energy meter operation environment is erected in a factory, a test data source is provided for the acquisition equipment, and the purpose of simulating the field environment is achieved.
The method has the advantages that the real electric energy meter test environment is installed, thousands of electric energy meters need to be installed, the cost is high, the maintenance is difficult during the test, the problem troubleshooting difficulty is large, the problem cannot be quickly positioned, the generation of the analog meter event is difficult for the test event function, and the test efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a test device and a test method for realizing multi-meter test in a simulation field.
In order to solve the technical problem, the invention is solved by the following technical scheme:
the utility model provides a test equipment for realizing on-spot multimeter test of simulation, includes communication driver module, agreement setting selection module, meter reading processing module, authority setting module and judgement module:
the communication driving module is used as a communication interface for interacting with the acquisition equipment and provides a transmission channel in a carrier communication mode;
the protocol setting selection module comprises a plurality of communication protocols and is used for selecting a corresponding communication protocol according to a field application scene and simulating a corresponding test application scene;
the meter reading processing module receives and responds to a meter reading command issued by the acquisition equipment;
the authority setting module is used for setting a blacklist address and a white list address of the electric energy meter and selecting the electric energy meter to be copied and read through the blacklist address and the white list address;
and the judging module is used for judging whether the address of the electric energy meter executing the reading command falls into the blacklist address or the whitelist address, making a corresponding response and feeding back the response result to the acquisition equipment.
In one embodiment, the number of the communication interfaces is one or more than one.
The communication protocol at least comprises a communication protocol DL/T6452007 and a communication protocol DL/T698.45.
As an implementable manner, the field application scenario includes the number of platform users.
As an implementation manner, the blacklist address and the whitelist address of the electric energy meter are set according to the file information of the issued electric energy meter in the field application scene.
As an implementation manner, the electric energy meter profile information includes the number of the electric energy meters, the communication addresses of the electric energy meters, the communication protocols of the electric energy meters, the communication baud rates of the electric energy meters, the communication passwords of the electric energy meters and the user types of the electric energy meters;
the ranges of the blacklist address and the white list address of the electric energy meter are determined according to test requirements.
As an implementation manner, a multi-meter testing method suitable for a simulation field of the testing device comprises the following steps:
building a test environment, connecting the test equipment with the acquisition equipment through a communication driving module, and communicating in a carrier communication mode;
the protocol setting selection module correspondingly selects a communication protocol according to a field application scene and issues electric energy meter file information according to the field application scene, wherein the electric energy meter file information comprises the number of electric energy meters, communication addresses of the electric energy meters, communication protocols of the electric energy meters, communication baud rates of the electric energy meters, communication passwords of the electric energy meters and user types of the electric energy meters;
the authority setting module configures a blacklist address range and a whitelist address range of the electric energy meter according to the electric energy meter file information in the field application scene;
the meter reading processing module receives a reading command of reading the electric energy meter sent by the acquisition equipment according to the file information, and judges the address of the electric energy meter in the reading command;
the judging module compares the electric energy meter address in the reading command with the configured blacklist address range and the configured whitelist address range, judges whether the address in the reading command received by the testing terminal falls into the blacklist address range and the whitelist address range, and obtains a corresponding response result;
and issuing the response result to the acquisition equipment through the communication driving module, and continuously reading the data of the next electric energy meter by the acquisition equipment until the data of all the electric energy meters in the archive information are completely read.
As an implementable manner, the reading command of the collecting device for reading the electric energy meter issued according to the file information is specifically:
and the acquisition equipment issues a reading command for reading the electric energy meter according to the communication address of the electric energy meter and the communication protocol of the electric energy meter.
As an implementable manner, the determining module compares the electric energy meter address in the reading command with the configured blacklist address range and the configured whitelist address range, determines whether the address in the reading command received by the testing terminal falls within the blacklist address range and the whitelist address range, obtains a corresponding response result, and feeds back the response result to the collecting device, and the specific steps are as follows:
when the blacklist address function is started, the judgment module compares the electric energy meter address in the reading command with the configured blacklist address range, and if the electric energy meter address is not in the blacklist address range, the judgment module does not judge if the response of agreeing the acquisition equipment to acquire the corresponding electric energy meter data is not started;
when the white list address function is started, the judging module compares the electric energy meter address in the reading command with the configured white list address range, if the electric energy meter address is in the white list address range, the judging module makes a response of agreeing to the acquisition equipment to acquire corresponding electric energy meter data, and if the electric energy meter address is not in the white list address range, the judging module makes a response of disagreeing to the acquisition equipment to acquire the corresponding electric energy meter data.
As an implementable manner, before the step of comparing, by the determination module, the electric energy meter address in the reading command with the configured blacklist address range and the configured whitelist address range, determining whether the address in the reading command received by the test terminal falls within the blacklist address range and the whitelist address range, obtaining a corresponding response result, and feeding back the response result to the acquisition device, the method further includes:
the judging module identifies whether the command message sent by the acquisition equipment is a reading command of a DL/T645 protocol and a DL/T698.45 protocol;
judging the blacklist address range and the white list address range of the electric energy meter address, returning the blacklist address range and the white list address range to the acquisition equipment by using the same protocol, and responding by using a DL/T645 protocol command message if the DL/T645 protocol command message is received; and if the received message is a DL/T698.45 protocol command message, responding with a DL/T698.45 protocol command message.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that:
the test equipment can be suitable for test application scenes of various acquisition communication modes and mixed acquisition modes in a centralized meter reading scheme in the power industry;
the data of a large number of real electric energy meters can be provided through one testing device;
test data can be quickly generated by operating and setting the test equipment, and the external provided conditions generate event records, so that the test efficiency is quickly improved;
the current DLT/645 and 2007 and DLT/698.45 double communication protocols of the national grid are supported, and the real multi-protocol installation environment of the electric energy meter on site is covered.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic flow diagram of the process of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, which are illustrative of the present invention and are not to be construed as being limited thereto.
Example 1: a test device for realizing multi-meter test of a simulation field, as shown in FIG. 1, includes a communication driving module 100, a protocol setting selection module 200, a meter reading processing module 300, an authority setting module 400 and a judgment module 500:
the communication driving module 100 is used as a communication interface for interacting with the acquisition device, and provides a transmission channel in a carrier communication mode;
the protocol setting selection module 200 comprises a plurality of communication protocols and is used for selecting a corresponding communication protocol according to a field application scene and simulating a corresponding test application scene;
the meter reading processing module 300 receives and responds to a reading electric energy meter command issued by the acquisition equipment;
the authority setting module 400 sets a blacklist address and a whitelist address of the electric energy meter, and selects the electric energy meter to be copied and read according to the blacklist address and the whitelist address;
the judging module 500 is configured to judge whether the address of the electric energy meter executing the reading command falls into the blacklist address or the whitelist address, make a corresponding response, and feed back a response result to the acquisition device.
Furthermore, the communication interface is one or more than one, and the communication protocol at least comprises a communication protocol DL/T-6452007 and a communication protocol DL/T698.45.
The field application scene comprises the number of the users in the distribution area, and the blacklist address and the white list address of the electric energy meter are set according to the file information of the electric energy meter issued in the field application scene.
In this embodiment, the electric energy meter profile information includes the number of electric energy meters, communication addresses of the electric energy meters, communication protocols of the electric energy meters, communication baud rates of the electric energy meters, communication passwords of the electric energy meters, and user types of the electric energy meters; the ranges of the blacklist address and the white list address of the electric energy meter are determined according to test requirements.
Example 2:
a multi-meter testing method suitable for a simulation site of a testing device, as shown in fig. 2, comprises the following steps:
s100, building a test environment, connecting test equipment with acquisition equipment through a communication driving module, and communicating in a carrier communication mode;
s200, the protocol setting selection module correspondingly selects a communication protocol according to a field application scene and issues electric energy meter archive information according to the field application scene, wherein the electric energy meter archive information comprises the number of electric energy meters, communication addresses of the electric energy meters, the communication protocol of the electric energy meters, communication baud rates of the electric energy meters, communication passwords of the electric energy meters and user types of the electric energy meters;
s300, the authority setting module configures a blacklist address range and a whitelist address range of the electric energy meter according to the electric energy meter archive information in the field application scene;
s400, the meter reading processing module receives a reading command of reading the electric energy meter issued by the acquisition equipment according to the file information, and judges the address of the electric energy meter in the reading command;
s500, the judging module compares the electric energy meter address in the reading command with the configured blacklist address range and the configured whitelist address range, judges whether the address in the reading command received by the testing terminal falls into the blacklist address range and the whitelist address range, and obtains a corresponding response result;
s600, the response result is sent to the acquisition equipment through the communication driving module, and the acquisition equipment continues to read the data of the next electric energy meter until the data of all the electric energy meters in the archive information are completely read.
In step S200, the reading command of the reading electric energy meter issued by the acquisition device according to the file information is specifically: the collecting equipment issues a reading command for reading the electric energy meter according to the communication address of the electric energy meter and the communication protocol of the electric energy meter, in addition, the communication baud rate of the electric energy meter, the communication password of the electric energy meter and the user type of the electric energy meter are three items of file information of the electric energy meter, and when the collecting equipment issues the reading command, the read meter is determined according to the address of the electric energy meter. The communication baud rate parameter of the electric energy meter is the communication rate used for communicating with the electric energy meter when the terminal reads the meter. If the master station needs to remotely control the electric energy meter, the password is confirmed, and the password in the archive information is used for identity authentication. And the acquisition equipment determines the copied data items according to the user type of the electric energy meter in the archive information.
In step S500, the determining module compares the electric energy meter address in the reading command with the configured blacklist address range and whitelist address range, determines whether the address in the reading command received by the testing terminal falls within the blacklist address range and the whitelist address range, obtains a corresponding response result, and feeds back the response result to the collecting device, and the specific steps are as follows:
when the blacklist address function is started, the judgment module compares the electric energy meter address in the reading command with the configured blacklist address range, and if the electric energy meter address is not in the blacklist address range, the judgment module does not judge if the response of agreeing the acquisition equipment to acquire the corresponding electric energy meter data is not started;
when the white list address function is started, the judging module compares the electric energy meter address in the reading command with the configured white list address range, if the electric energy meter address is in the white list address range, the judging module makes a response of agreeing to the acquisition equipment to acquire corresponding electric energy meter data, and if the electric energy meter address is not in the white list address range, the judging module makes a response of disagreeing to the acquisition equipment to acquire the corresponding electric energy meter data.
When the black and white list address function is closed, the judging module does not judge the electric energy meter address in the reading command, and all the electric energy meter address responds to the data required by the acquisition equipment.
In addition, before the step of comparing the electric energy meter address in the reading command with the configured blacklist address range and whitelist address range by the judgment module, judging whether the address in the reading command received by the test terminal falls into the blacklist address range and the whitelist address range, obtaining a corresponding response result, and feeding the response result back to the acquisition device, the method further includes:
the judging module identifies whether the command message sent by the acquisition equipment is a reading command of a DL/T645 protocol and a DL/T698.45 protocol;
judging the blacklist address range and the white list address range of the electric energy meter address, returning the blacklist address range and the white list address range to the acquisition equipment by using the same protocol, and responding by using a DL/T645 protocol command message if the DL/T645 protocol command message is received; and if the received message is a DL/T698.45 protocol command message, responding with a DL/T698.45 protocol command message.
See the following examples in particular:
1. a full carrier communication mode test mode, a DL/T698.45 protocol implementation flow:
connecting the test equipment to the acquisition equipment and connecting the test equipment to the acquisition equipment in a full carrier communication mode;
the acquisition equipment file configuration issues electric energy meter files according to the number of users in the field application environment area, and the maximum access number of the acquisition equipment can be configured in a full load test;
the acquisition equipment issues an acquisition data command according to the file address, the protocol type is DL/T698.45, when the test equipment receives the reading command, the test equipment judges the address in the command, if the address is the address in the white list, the test equipment replies data in a DL/T698.45 protocol frame format according to the address, otherwise, no response is made;
and after receiving the data returned by the test equipment, the acquisition equipment continues to copy the data of the electric energy meter of the next block until all the electric energy meter data in the file are copied.
2. A full carrier communication mode test mode, a DL/T698.45 protocol implementation flow:
connecting the test equipment to the acquisition equipment and connecting the test equipment to the acquisition equipment in a full carrier communication mode;
the acquisition equipment file configuration issues electric energy meter files according to the number of users in the field application environment area, and the maximum access number of the acquisition equipment can be configured in a full load test;
the acquisition equipment issues an acquisition data command according to the file address, the protocol type is DL/T645-2007, when the test equipment receives the reading command, the address in the command is judged, if the address is the address in the white list, the test equipment replies data in a DL/T645-2007 protocol frame format according to the address, otherwise, no response is made;
and after receiving the data returned by the test equipment, the acquisition equipment continues to copy the data of the electric energy meter of the next block until all the electric energy meter data in the file are copied.
3. A hybrid communication mode test mode, a hybrid protocol mode implementation flow:
connecting the test equipment to the acquisition equipment, and connecting the test equipment with the acquisition equipment in a full carrier communication mode and a half carrier communication mode;
the acquisition equipment file configuration issues electric energy meter files according to the number of users in the field application environment area, and the maximum access number of the acquisition equipment can be configured in a full load test;
the acquisition equipment issues an acquisition data command according to the file address, the protocol types are DL/T645-2007 and DL/T698.45, when the test equipment receives the reading command, the address in the command is judged, if the address is the address in the white list, the test equipment replies data in a DL/T645-2007 protocol frame format according to the address, otherwise, no response is made;
and after receiving the data returned by the test equipment, the acquisition equipment continues to copy the data of the electric energy meter of the next block until all the electric energy meter data in the file are copied.
The specific method is as follows by combining the specific electric energy meter number in the concentrator file:
the full carrier mode test, DL/T698.45 protocol implementation method:
when concentrator file 100 is a power meter, communication protocol DL/T698.45;
step 1: reading data with a first block table address of 000000000001 by the acquisition equipment;
step 2: the test equipment replies corresponding data with the address of 000000000001 according to the DL/T698.45 protocol;
……
and step 3: the acquisition equipment reads the data with the address of 000000000100 in the 100 th block table;
and 4, step 4: the test equipment replies with corresponding data at address 000000000100 according to the DL/T698.45 protocol.
The method for testing the full carrier mode and implementing the DL/T645-207 protocol comprises the following steps:
when concentrator file 100 is a power meter, communication protocol DL/T645-2007;
step 1: the concentrator reads the data with the address of the first block table of 000000000001;
step 2: the test equipment replies corresponding data with the address of 000000000001 according to the DL/T645-2007 protocol;
……
and step 3: the concentrator reads the data with the 100 th block table address of 000000000100;
and 4, step 4: the test equipment replies with corresponding data at address 000000000100 according to the DL/T645-2007 protocol.
The implementation method of the hybrid communication mode and the hybrid protocol mode comprises the following steps:
precondition: the concentrator file 100 comprises electric energy meters, addresses of the electric energy meters are 000000000001-000000000050, a communication protocol is DL/T645-2007, addresses of the electric energy meters are 000000000051-0000000000100, and the communication protocol is DL/T698.45;
step 1: reading data with the address of 000000000001 of the first electric energy meter, communicating the concentrator with the acquisition equipment in a carrier mode, and sending a reading command to the acquisition equipment;
step 2: the acquisition equipment transmits the reading command to communicate with the test equipment in a 485 mode;
and step 3: the test equipment replies corresponding data to the acquisition equipment with an address of 000000000001 according to a communication protocol DL/T645-2007 or a communication protocol DL/T698;
and 4, step 4: the acquisition equipment returns data to the concentrator in a carrier mode;
and 5: the concentrator directly communicates with the test equipment in a carrier mode;
……
step 6: the concentrator reads the data with the 100 th block table address of 000000000100;
and 7: the test equipment replies corresponding data with an address of 000000000100 according to a communication protocol DL/T645-2007 or a communication protocol DL/T698 protocol.
In addition, it should be noted that the specific embodiments described in the present specification may differ in the shape of the components, the names of the components, and the like. All equivalent or simple changes of the structure, the characteristics and the principle of the invention which are described in the patent conception of the invention are included in the protection scope of the patent of the invention. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The utility model provides a test equipment for realizing on-spot multimeter test of simulation, its characterized in that includes communication driver module, agreement setting selection module, meter reading processing module, authority setting module and judgment module:
the communication driving module is used as a communication interface for interacting with the acquisition equipment and provides a transmission channel in a carrier communication mode;
the protocol setting selection module comprises a plurality of communication protocols and is used for selecting a corresponding communication protocol according to a field application scene and simulating a corresponding test application scene;
the meter reading processing module receives and responds to a meter reading command issued by the acquisition equipment;
the authority setting module is used for setting a blacklist address and a white list address of the electric energy meter and selecting the electric energy meter to be copied and read through the blacklist address and the white list address;
the judging module is used for judging whether the address of the electric energy meter executing the reading command falls into the blacklist address or the whitelist address, making a corresponding response and feeding back the response result to the acquisition equipment;
the blacklist address and the white list address of the electric energy meter are set according to the file information of the electric energy meter issued in the field application scene.
2. The test equipment for implementing multi-meter testing in a simulation field according to claim 1, wherein the communication interface is one or more than one.
3. The test equipment for implementing multi-meter testing of a simulation site of claim 1, wherein the communication protocol comprises at least communication protocol DL/T6452007 and communication protocol DL/T698.45.
4. The test equipment for enabling multi-meter testing in a simulation field according to claim 1, wherein the field application scenario includes a number of platform users.
5. The test equipment for implementing the multi-meter test of the simulation site as claimed in claim 1, wherein the electric energy meter profile information includes the number of the electric energy meters, the communication addresses of the electric energy meters, the communication protocols of the electric energy meters, the communication baud rates of the electric energy meters, the communication passwords of the electric energy meters and the user types of the electric energy meters;
the ranges of the blacklist address and the white list address of the electric energy meter are determined according to test requirements.
6. A multi-meter test method suitable for use in a simulation site of a test apparatus according to any of claims 1-5, comprising the steps of:
building a test environment, connecting the test equipment with the acquisition equipment through a communication driving module, and communicating in a carrier communication mode;
the protocol setting selection module correspondingly selects a communication protocol according to a field application scene and issues electric energy meter file information according to the field application scene, wherein the electric energy meter file information comprises the number of electric energy meters, communication addresses of the electric energy meters, communication protocols of the electric energy meters, communication baud rates of the electric energy meters, communication passwords of the electric energy meters and user types of the electric energy meters;
the authority setting module configures a blacklist address range and a whitelist address range of the electric energy meter according to the electric energy meter file information in the field application scene;
the meter reading processing module receives a reading command of reading the electric energy meter sent by the acquisition equipment according to the file information, and judges the address of the electric energy meter in the reading command;
the judging module compares the electric energy meter address in the reading command with the configured blacklist address range and the configured whitelist address range, judges whether the address in the reading command received by the testing terminal falls into the blacklist address range and the whitelist address range, and obtains a corresponding response result;
and issuing the response result to the acquisition equipment through the communication driving module, and continuously reading the data of the next electric energy meter by the acquisition equipment until the data of all the electric energy meters in the archive information are completely read.
7. The method for testing the multiple meters in the simulation site according to claim 6, wherein the reading command of the reading electric energy meter issued by the acquisition device according to the archive information is specifically:
and the acquisition equipment issues a reading command for reading the electric energy meter according to the communication address of the electric energy meter and the communication protocol of the electric energy meter.
8. The method according to claim 7, wherein the determining module compares the electric energy meter address in the reading command with the configured blacklist address range and whitelist address range, determines whether the address in the reading command received by the testing terminal falls within the blacklist address range and the whitelist address range, obtains a corresponding response result, and feeds back the response result to the collecting device, and the specific steps are as follows:
when the blacklist address function is started, the judgment module compares the electric energy meter address in the reading command with the configured blacklist address range, and if the electric energy meter address is not in the blacklist address range, the judgment module makes a response of agreeing the acquisition equipment to acquire corresponding electric energy meter data; if not, the judgment is not carried out;
when the white list address function is started, the judging module compares the electric energy meter address in the reading command with the configured white list address range, if the electric energy meter address is in the white list address range, the judging module makes a response of agreeing to the acquisition equipment to acquire corresponding electric energy meter data, and if the electric energy meter address is not in the white list address range, the judging module makes a response of disagreeing to the acquisition equipment to acquire the corresponding electric energy meter data.
9. The method according to claim 8, wherein before the step of comparing the electric energy meter address in the reading command with the configured blacklist address range and whitelist address range by the determining module, determining whether the address in the reading command received by the testing terminal falls within the blacklist address range and the whitelist address range, and obtaining a corresponding response result, and feeding back the response result to the collecting device, the method further comprises:
the judging module identifies whether the command message sent by the acquisition equipment is a reading command of a DL/T645 protocol and a DL/T698.45 protocol;
judging the blacklist address range and the white list address range of the electric energy meter address, returning the blacklist address range and the white list address range to the acquisition equipment by using the same protocol, and responding by using a DL/T645 protocol command message if the DL/T645 protocol command message is received; and if the received message is a DL/T698.45 protocol command message, responding with a DL/T698.45 protocol command message.
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| CN113970893A (en) * | 2021-09-10 | 2022-01-25 | 江苏方天电力技术有限公司 | Power consumption monitoring terminal equipment and immediate installation and immediate acquisition method thereof |
| CN115100843B (en) * | 2022-05-24 | 2024-01-02 | 安徽南瑞中天电力电子有限公司 | Method, system and equipment for testing communication reliability of intelligent electric energy meter |
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| CN105376135A (en) * | 2014-08-26 | 2016-03-02 | 深圳市佑友技术有限公司 | Method and system for sending e-mail |
| CN104333547B (en) * | 2014-10-24 | 2018-01-19 | 国家电网公司 | A kind of method for security protection of two-way interaction intelligent electric energy meter |
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| CN105279952A (en) * | 2015-11-30 | 2016-01-27 | 国网江西省电力科学研究院 | Whole-event acquisition testing system of intelligent ammeter based on virtual ammeter module |
| CN107147622A (en) * | 2017-04-21 | 2017-09-08 | 深圳市共进电子股份有限公司 | HTTPS encrypts filter method, device and its computer equipment of network address |
| CN107395391A (en) * | 2017-06-06 | 2017-11-24 | 中国电力科学研究院 | A kind of low-voltage power line bandwidth carrier system for testing unification of communication protocol and method |
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