CN111751614A - Non-invasive electricity consumption data testing system and method based on ModBus - Google Patents
Non-invasive electricity consumption data testing system and method based on ModBus Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/063—Details of electronic electricity meters related to remote communication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40228—Modbus
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention relates to a non-invasive electricity consumption data test system based on ModBus, which comprises: the load acquisition terminals are arranged at the positions of the load sockets and are respectively used for acquiring classified load power data of different classifications; the main port acquisition terminal is arranged at an inlet of the residential electric meter and is used for acquiring main port load power data of the residential electric meter; the concentrator is used for carrying out data aggregation on the classified load power data of the plurality of load acquisition terminals and the total port load power data acquired by the total port acquisition terminal; the Modbus server is used for receiving the classified load power data and the bus port load power data after the concentrator set is aggregated, and carrying out load marking on the classified load power data and the bus port load power data to obtain a marking result; and the display unit is used for receiving the marking result of the Modbus server and displaying the marking result.
Description
Technical Field
The invention relates to the technical field of power consumption data testing, in particular to a non-invasive power consumption data testing system and a non-invasive power consumption data testing method based on ModBus.
Background
In a non-invasive resident power load monitoring and decomposing system, a plurality of methods are used for verifying the accuracy of a non-invasive load decomposing algorithm in the current system, and the basis is to carry out real marking on the running state of original load data of a main port. At present, the main method for marking load data is to add an intelligent socket at each load power supply location, compare the real operating characteristics (generally power) of various loads collected by the intelligent socket with the operating characteristic data (power) of a main port electric meter, and thus compare the operating characteristic data (power) of the main port. However, the smart socket and the electric meter are generally produced by different manufacturers, the acquisition frequencies of the smart socket and the electric meter are different greatly, the smart socket and the electric meter cannot communicate with each other, the comparison and marking work is manual, the accuracy is low, and therefore the algorithm verification effect is poor.
Disclosure of Invention
The invention aims to provide a non-invasive electricity consumption data testing system based on ModBus, and aims to solve the technical problems that an intelligent socket and an electricity meter are generally produced by different manufacturers, the acquisition frequencies of the intelligent socket and the electricity meter are greatly different, the intelligent socket and the electricity meter cannot communicate with each other, the comparison and marking work is manual, and the accuracy is low in the existing testing method.
To this end, an embodiment of the present invention provides a non-invasive electrical data testing system based on ModBus, including:
the load acquisition terminals are arranged at the positions of the load sockets and are respectively used for acquiring classified load power data of different classifications;
the main port acquisition terminal is arranged at an inlet of the residential electric meter and is used for acquiring main port load power data of the residential electric meter;
the concentrator is used for carrying out data aggregation on the classified load power data of the plurality of load acquisition terminals and the total port load power data acquired by the total port acquisition terminal;
the Modbus server is used for periodically acquiring classified load power data and bus port load power data after the concentrator set is aggregated according to a Tcp-Modbus protocol, and carrying out load marking on the classified load power data and the bus port load power data to obtain a marking result; and
and the display unit is used for receiving and displaying the marking result of the Modbus server.
Preferably, the load collection terminal and the main port collection terminal both include a first processor, and a voltage sampling chip, a current sampling chip, a network chip, and a cache unit electrically connected to the first processor, where the voltage sampling chip and the current sampling chip are respectively used to synchronously collect voltage and current of a load, the first processor is used to calculate collected voltage data and current data to obtain corresponding load power data, the cache unit is used to cache the voltage data, the current data, and the load power data, and the network chip is used to transmit the load power data to the concentrator in a wireless communication manner.
Preferably, the first processor develops a Tcp-Modbus protocol stack, so that the load collection terminal performs protocol interaction with a Modbus server as a Tcp-Modbus client, and the concentrator is used for data aggregation and forwarding.
Preferably, the concentrator includes a second processor, the second processor is provided with an RJ45 interface and a Wifi interface, the RJ45 interface is used for performing data interaction with the server, and the Wifi interface is used for performing data interaction with the load collection terminal.
Preferably, each load acquisition terminal is provided with a unique address, the address is a Modbus protocol address bit, and different load types correspond to different addresses.
The embodiment of the invention also provides a test method based on the ModBus non-invasive electricity consumption data test system, which comprises the following steps:
the Modbus server periodically sends a polling call command to the concentrator according to the Tcp-Modbus protocol;
after receiving the polling call command, the concentrator sends the polling call command to a plurality of load acquisition terminals and a trunk acquisition terminal;
after receiving the polling call command, the plurality of load acquisition terminals send acquired classified load power data to a concentrator according to the polling call command and a Tcp-Modbus protocol;
after receiving the polling call command, the bus port acquisition terminal transmits acquired bus port load power data to a concentrator according to the polling call command and a Tcp-Modbus protocol;
the concentrator aggregates the classified load power data and the bus port load power data uploaded by the plurality of load acquisition terminals and the bus port acquisition terminal and then forwards the aggregated classified load power data and the bus port load power data to the Modbus server;
the Modbus server receives the classified load power data and the bus port load power data uploaded by the concentrator, and carries out load marking on the classified load power data and the bus port load power data to obtain a marking result;
and the display unit reads the marking result of the Modbus server through the API interface and displays the marking result.
Preferably, the concentrator aggregates the classified load power data and the total port load power data uploaded by the plurality of load collection terminals and the total port collection terminal, and specifically, the classified load power data and the total port load power data are respectively concentrated into a total port load power data table and a plurality of classified load power data tables, and the total port load power data table and the plurality of classified load power data tables store data sampling time, collection terminal addresses and load power.
Preferably, the load marking the classified load power data and the total port load power data to obtain a marking result includes:
comparing the data sampling time of each load power in the total port load power data table with the data sampling time corresponding to the load power in a plurality of classified load power data tables;
if the data sampling time of a certain load power in the total port load power data table is the same as the data sampling time of a certain classified load power data table, determining a corresponding load classification type according to the address of the acquisition terminal of the certain classified load power data table, and marking the load classification type at the position of the certain load power in the total port load power data table.
The above embodiment scheme has at least the following beneficial effects:
the intelligent socket and the electric meter are generally produced by different manufacturers, the difference of the collection frequencies of the intelligent socket and the electric meter is large, the intelligent socket and the electric meter cannot communicate with each other, the comparison and marking work is manual work, and the accuracy is low.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
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, 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 the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a non-invasive electrical data test system based on ModBus according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a hardware architecture of the acquisition terminal.
Fig. 3 is a diagram of a concentrator hardware architecture.
FIG. 4 is a diagram of a Tcp-Modbus protocol acquisition machine.
Fig. 5 is an automatic labeling schematic.
Fig. 6 is a pre-mark porthole data representation intent.
FIG. 7 is a water heater load data presentation.
Fig. 8 is a refrigerator load data presentation intention.
Fig. 9 shows the television load data representation intention.
Fig. 10 is a view showing load data of the microwave oven.
FIG. 11 is a diagram showing the results of the total mouth marking.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
In addition, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, well known means have not been described in detail so as not to obscure the present invention.
As shown in fig. 1, an embodiment of the invention provides a non-invasive electricity consumption data testing system based on ModBus, including:
the load acquisition terminals are arranged at the positions of the load sockets and are respectively used for acquiring classified load power data of different classifications;
the main port acquisition terminal is arranged at an inlet of the residential electric meter and is used for acquiring main port load power data of the residential electric meter;
the concentrator is used for carrying out data aggregation on the classified load power data of the plurality of load acquisition terminals and the total port load power data acquired by the total port acquisition terminal;
the Modbus server is used for periodically acquiring classified load power data and bus port load power data after the concentrator set is aggregated according to a Tcp-Modbus protocol, and carrying out load marking on the classified load power data and the bus port load power data to obtain a marking result; and
and the display unit is used for receiving and displaying the marking result of the Modbus server.
The load acquisition terminal and the bus port acquisition terminal are the same in hardware architecture, and specifically as shown in fig. 2, the load acquisition terminal and the bus port acquisition terminal both include a first processor, and a voltage sampling chip, a current sampling chip, a network chip and a cache unit which are electrically connected to the first processor, the voltage sampling chip and the current sampling chip are respectively used for synchronously acquiring voltage and current of a load, the first processor is used for calculating the acquired voltage data and current data to obtain corresponding load power data, the cache unit is used for caching the voltage data, the current data and the load power data, and the network chip is used for transmitting the load power data to the concentrator in a wireless communication manner.
Specifically, in the embodiment, the requirement of the accuracy of the mark on the acquisition frequency is considered, and 2 16-bit high-speed parallel AD sampling chips (model LTC1606) are selected to perform synchronous acquisition on the voltage and the current respectively. And the main CPU selects a 16-bit fixed-point DSP (model TMS320VC5402) to perform operations such as phase synchronization, power calculation, result caching, interface forwarding and the like on the two paths of sampling data, and simultaneously develops a Tcp-Modbus protocol stack in the chip so that the acquisition terminal is used as a Tcp-Modbus client to perform protocol interaction with the Modbus server. Wherein the result data are stored in power value per second, therefore, 2M capacity SDRAM (model HY57V281620ETSDRAM) is selected for result data caching, the caching capacity is set to 600 seconds of power data in consideration of the call interval time of the Modbus server, and the result data are connected to the network chip (model MT7681) through the SPI bus and transmitted to the Modbus server.
The hardware architecture of the concentrator is as shown in fig. 3, the concentrator includes a second processor (model TI-CC3320), the second processor is connected to an RJ45 interface through an SPI bus, and is connected to a Wifi interface through an SCI bus, the RJ45 interface is used for performing data interaction with a server, and the Wifi interface is used for performing data interaction with a load collection terminal.
Specifically, in consideration of the distributed access of the maximum 30 acquisition terminals, Wi-Fi is selected as a communication mode of the concentrator and a plurality of terminals, and the workload of wiring and debugging is reduced. A core processor selects a high-speed communication chip integrated with an ARM core, development of a Modus protocol stack is completed through the ARM, and a 512Kb capacity SDRAM is arranged in the high-speed communication chip to meet data caching requirements of polling call gaps of a Modbus protocol. Meanwhile, the high-speed communication chip performs data interaction with the server through the RJ45 interface.
Each load acquisition terminal is provided with a unique address, the address is a Modbus protocol address bit, and different load types correspond to different addresses.
As shown in fig. 4, an embodiment of the present invention further provides a testing method based on a non-invasive ModBus power consumption data testing system according to the above embodiment, including:
step S1, the Modbus server periodically sends a polling call command to the concentrator according to the Tcp-Modbus protocol;
step S2, after receiving the polling call command, the concentrator issues the polling call command to a plurality of load acquisition terminals and a trunk acquisition terminal;
step S3, after receiving the polling call command, the plurality of load acquisition terminals send the acquired classified load power data to a concentrator according to the polling call command and a Tcp-Modbus protocol;
step S4, after receiving the polling call command, the bus port acquisition terminal sends the acquired bus port load power data to a concentrator according to the polling call command and a Tcp-Modbus protocol;
step S5, the concentrator aggregates the classified load power data and the bus port load power data uploaded by the plurality of load acquisition terminals and the bus port acquisition terminal and forwards the aggregated classified load power data and the aggregated classified load power data to the Modbus server;
step S6, the Modbus server receives the classified load power data and the bus port load power data uploaded by the concentrator, and carries out load marking on the classified load power data and the bus port load power data to obtain a marking result;
and step S7, the display unit reads the marking result of the Modbus server through the API interface and displays the marking result.
Specifically, in this embodiment, the load power data is collected by the multiple load collection terminals and the trunk collection terminal in real time, and specifically, the sampling period is 1 second. The Modbus server acquires data of different terminals by using a Tcp-Modbus protocol, and an acquisition mechanism of the Modbus server is shown in FIG. 5. Because the communication mode of the system is based on the TCP mechanism, the data acquisition is completed by adopting a Tcp-Modbus protocol based on the Tcp mechanism, a polling call command is initiated by a server and issued to each terminal through a concentrator, each acquisition terminal receives the call command and then responds in sequence, and load data is transmitted back to the Modbus server through the concentrator. Specifically, each call command calls power data for 10 seconds, the power data for 10 seconds of the next terminal are called in sequence, and are stored in a corresponding data table of the server in sequence, wherein the trunk data are stored in a 'trunk original power data' table, classified loads are stored in a corresponding 'load n power data' table, and the storage time is also 10 seconds each time. The operation is circularly executed, and the data acquisition and storage work of all terminals in the system is completed.
The concentrator integrates classified load power data and total port load power data uploaded by a plurality of load acquisition terminals and a total port acquisition terminal, and specifically, the classified load power data and the total port load power data are respectively integrated into a total port load power data table and a plurality of classified load power data tables, and the total port load power data table and the plurality of classified load power data tables store data sampling time, acquisition terminal addresses and load power.
Wherein, the load marking the classified load power data and the total port load power data to obtain a marking result comprises:
comparing the data sampling time of each load power in the total port load power data table with the data sampling time corresponding to the load power in a plurality of classified load power data tables;
if the data sampling time of a certain load power in the total port load power data table is the same as the data sampling time of a certain classified load power data table, determining a corresponding load classification type according to the address of the acquisition terminal of the certain classified load power data table, and marking the load classification type at the position of the certain load power in the total port load power data table.
Specifically, the load power data of each 1 second of the total port and the effective power data of each 1 second of the classified loads are compared in time consistency, if the time is consistent, the name of the corresponding load is marked on the total port power data, and the like, and finally a table of 'total port power marking result' is obtained. Wherein each table is stored in an Oracle data table format.
Wherein the step S7 includes: and reading the Oracle data table through an API (application programming interface) interface and storing the Oracle data table in an excel format for displaying. As shown in fig. 6-11 below, different loads correspond to different addresses, which are Modbus protocol address bits, and which also correspond to the corresponding loads. The total port marking result is a load data mark finally output by the system, and the mark can be used as a standard for evaluating and testing the accuracy of the non-invasive data algorithm. Specifically, firstly, a non-invasive load is decomposed by using a non-invasive load decomposition algorithm to obtain a decomposition result, and then the accuracy of the decomposition result can be visually judged according to the total port marking result and the power parameter of each load type during operation.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (8)
1. A non-invasive electricity consumption data test system based on ModBus is characterized by comprising:
the load acquisition terminals are arranged at the positions of the load sockets and are respectively used for acquiring classified load power data of different classifications;
the main port acquisition terminal is arranged at an inlet of the residential electric meter and is used for acquiring main port load power data of the residential electric meter;
the concentrator is used for carrying out data aggregation on the classified load power data of the plurality of load acquisition terminals and the total port load power data acquired by the total port acquisition terminal;
the Modbus server is used for periodically acquiring classified load power data and bus port load power data after the concentrator set is aggregated according to a Tcp-Modbus protocol, and carrying out load marking on the classified load power data and the bus port load power data to obtain a marking result; and
and the display unit is used for receiving and displaying the marking result of the Modbus server.
2. The ModBus-based non-invasive electricity consumption data testing system according to claim 1, wherein the load collection terminal and the trunk collection terminal each include a first processor, and a voltage sampling chip, a current sampling chip, a network chip, and a cache unit electrically connected to the first processor, the voltage sampling chip and the current sampling chip are respectively used for synchronously collecting voltage and current of a load, the first processor is used for calculating the collected voltage data and current data to obtain corresponding load power data, the cache unit is used for caching the voltage data, current data, and load power data, and the network chip is used for transmitting the load power data to the concentrator in a wireless communication manner.
3. The ModBus-based non-invasive electricity consumption data testing system according to claim 2, wherein the first processor develops a Tcp-Modbus protocol stack to enable the load collection terminals to perform protocol interaction with a Modbus server as Tcp-Modbus clients, and the concentrator is used for data aggregation and forwarding.
4. The ModBus-based non-invasive electricity consumption data testing system according to claim 1, wherein the concentrator comprises a second processor, the second processor is provided with an RJ45 interface and a Wifi interface, the RJ45 interface is used for data interaction with a server, and the Wifi interface is used for data interaction with a load collection terminal.
5. The ModBus-based non-invasive electricity consumption data testing system according to claim 1, wherein each load collection terminal is provided with a unique address, the address is Modbus protocol address bits, and different load types correspond to different addresses.
6. A test method based on a ModBus non-invasive electricity consumption data test system according to claim 1, comprising:
the Modbus server periodically sends a polling call command to the concentrator according to the Tcp-Modbus protocol;
after receiving the polling call command, the concentrator sends the polling call command to a plurality of load acquisition terminals and a trunk acquisition terminal;
after receiving the polling call command, the plurality of load acquisition terminals send acquired classified load power data to a concentrator according to the polling call command and a Tcp-Modbus protocol;
after receiving the polling call command, the bus port acquisition terminal transmits acquired bus port load power data to a concentrator according to the polling call command and a Tcp-Modbus protocol;
the concentrator aggregates the classified load power data and the bus port load power data uploaded by the plurality of load acquisition terminals and the bus port acquisition terminal and then forwards the aggregated classified load power data and the bus port load power data to the Modbus server;
the Modbus server receives the classified load power data and the bus port load power data uploaded by the concentrator, and carries out load marking on the classified load power data and the bus port load power data to obtain a marking result;
and the display unit reads the marking result of the Modbus server through the API interface and displays the marking result.
7. The testing method according to claim 6, wherein the concentrator aggregates the classified load power data and the total port load power data uploaded by the plurality of load collection terminals and the total port collection terminal, and specifically, the classified load power data and the total port load power data are respectively aggregated into a total port load power data table and a plurality of classified load power data tables, and the total port load power data table and the plurality of classified load power data tables store data sampling time, collection terminal addresses and load powers.
8. The method according to claim 7, wherein the load marking the classified load power data and the total port load power data to obtain a marking result comprises:
comparing the data sampling time of each load power in the total port load power data table with the data sampling time corresponding to the load power in a plurality of classified load power data tables;
if the data sampling time of a certain load power in the total port load power data table is the same as the data sampling time of a certain classified load power data table, determining a corresponding load classification type according to the address of the acquisition terminal of the certain classified load power data table, and marking the load classification type at the position of the certain load power in the total port load power data table.
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| CN115102992A (en) * | 2022-07-15 | 2022-09-23 | 南京数睿数据科技有限公司 | Data distribution method and device, electronic equipment and computer readable medium |
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