阅读说明：本技术 应用于家庭配电箱的半侵入式负荷监测系统、方法和应用 (Semi-invasive load monitoring system and method applied to household distribution box and application ) 是由 康兵 许志浩 周志康 丁贵立 王振 郑少华 王晓虎 石润泽 胡艺 刘亚茹 于 2019-11-12 设计创作，主要内容包括：本发明涉及电力负荷监测技术领域,公开了一种应用于家庭配电箱的半侵入式负荷监测系统,包括传感模块,传感模块包括若干电流传感器和空气断路器,位于总回路上的电流传感器连接漏电保护模块,位于支路回路上的电流传感器连接有数据采集模块,数据采集模块连接有数据处理与控制模块,数据处理与控制模块分别双向连接显示模块和存储模块,所述数据采集模块通过供电模块进行供电；还公开了其检测方法和具体应用。本发明,通过半侵入式负荷监测方法实现家庭配电箱每个空气断路器回路电器运行状态实时判断,并具有漏电保护功能。(The invention relates to the technical field of power load monitoring, and discloses a semi-invasive load monitoring system applied to a household distribution box, which comprises a sensing module, wherein the sensing module comprises a plurality of current sensors and an air circuit breaker, the current sensors positioned on a main loop are connected with an electric leakage protection module, the current sensors positioned on a branch loop are connected with a data acquisition module, the data acquisition module is connected with a data processing and control module, the data processing and control module is respectively connected with a display module and a storage module in a bidirectional mode, and the data acquisition module supplies power through a power supply module; its detection method and its application are also disclosed. According to the invention, the real-time judgment of the running state of the electric appliance of each air circuit breaker loop of the household distribution box is realized by a semi-invasive load monitoring method, and the electric leakage protection function is realized.)

1. A semi-intrusive load monitoring system applied to a household distribution box is characterized by comprising a sensing module (101), wherein the sensing module (101) comprises a plurality of current sensors and an air circuit breaker, the current sensors on a main loop are connected with a leakage protection module (102), the current sensors on a branch loop are connected with a data acquisition module (103), the data acquisition module (103) is connected with a data processing and control module (105), the data processing and control module (105) is respectively connected with a display module (107) and a storage module (106) in a bidirectional mode, the data acquisition module (103) supplies power through a power supply module (104), and the power supply module (104),

the sensing module (101) is used for acquiring current information of a branch loop air circuit breaker in the distribution box in real time and acquiring voltage information and current information of a total air circuit breaker of the distribution box;

the electric leakage protection module (102) is used for monitoring the current information of the total air circuit breaker in real time, recording the electric leakage time after electric leakage and giving an alarm;

the data acquisition module (103) is used for converting the current information and the voltage information into digital information;

the data processing and control module (105) is used for respectively extracting load characteristic quantities on each air circuit breaker according to the current and voltage data information acquired by the data acquisition module (103), identifying the online load electrical appliances, and storing the names, online states, real-time powers, used powers, online durations, online times and real-time waveform information of the online load electrical appliances into the storage module (106);

the storage module (106) is used for storing the respective online time and power of each state of each electric appliance in the whole month in the last month, and storing the online state, real-time power, used power, online time and real-time waveform information of the load electric appliance in the current month from zero;

the display module (107) is used for displaying the name, the online state, the real-time power, the used power, the online duration, the online time and the real-time waveform information of the online electric appliance, and providing a window for a user to manually identify the load which cannot be identified by the data processing and control module (105);

the power supply module (104) is used for maintaining the data processing and control module (105) and the display module (107) to work continuously and normally.

2. Semi-intrusive load monitoring system applied to a household distribution box as defined in claim 1, characterized in that the data processing and control module (105) employs an STM32F469 single-chip microcomputer.

3. A semi-intrusive load monitoring method applied to a household distribution box is characterized by comprising the following steps:

s1: the sensing module (101) collects current information of each air circuit breaker in the distribution box in real time, voltage information and current information of the total air circuit breakers of the distribution box, and transmits the information to the data collection module (103);

s2: converting the current and voltage information obtained in the step S1 into digital signals through a data acquisition module (103);

s3: the data processing and control module (105) processes the digital signals obtained in the step S2, obtains the load characteristics of the online electric appliance, judges, identifies the online electric appliance, identifies the state of the online electric appliance, calculates the real-time power and the used power of the online electric appliance, calculates the online time of the online electric appliance, records the online time of the online electric appliance, transmits the information to the storage module (106), and simultaneously displays the information on the display module (107).

4. The semi-intrusive load monitoring method for the home distribution box as claimed in claim 3, wherein in step S3, for the unidentified online electrical appliances, the data processing and control module (105) still identifies the status of the online electrical appliances, calculates the real-time power and the used power of the online electrical appliances, calculates the online duration of the online electrical appliances, records the online time of the online electrical appliances, and the display module provides a user window for a user to fill in the name of the electrical appliances.

5. The semi-intrusive load monitoring method applied to the household distribution box of claim 3 or 4, wherein in S1, the earth leakage protection module (102) monitors the current information of the main loop zero line and live line combination in real time, and if the information is abnormal, the main switch circuit breaker is opened.

6. A semi-invasive load monitoring system applied to a household distribution box is applied to semi-invasive load monitoring, online electrical appliance identification and manual identification and modification of electrical appliances of the household distribution box.

Technical Field

The invention relates to the technical field of power load monitoring, in particular to a semi-invasive load monitoring system, method and application applied to a household distribution box.

Background

Electric energy is widely applied to various related industrial production and people's life fields, and becomes an indispensable ' energy element ' of society. However, with the rapid development in the world, energy consumption is increasingly tense, and electric energy, as a secondary energy source on which the industrial society is most dependent, also faces various problems of shortage and waste. In order to plan, distribute and use electric energy more reasonably, load monitoring and identification need to be carried out on a power utilization end, a visual interface is established on a resident side to monitor the energy consumption condition of the household appliance, a user can be helped to draw up a strategy to save the power, and the method has important significance for relieving energy pressure.

In the traditional load monitoring and identifying method, hardware equipment such as a sensor is additionally arranged at each monitored load to acquire the electricity utilization behavior of each electric equipment, and the invasive monitoring method needs to spend a large amount of time and funds on installation and maintenance and cannot meet the requirement of continuous development of an electric power system.

Disclosure of Invention

The invention aims to provide a semi-invasive load monitoring system, a semi-invasive load monitoring method and a semi-invasive load monitoring application applied to a household distribution box.

In order to achieve the purpose, the invention provides the following technical scheme:

a semi-invasive load monitoring system applied to a household distribution box comprises a sensing module, wherein the sensing module comprises a plurality of current sensors and an air circuit breaker, the current sensors on a main loop are connected with an electric leakage protection module, the current sensors on a branch loop are connected with a data acquisition module, the data acquisition module is connected with a data processing and control module, the data processing and control module is respectively connected with a display module and a storage module in a bidirectional mode, the data acquisition module supplies power through a power supply module, the sensing module comprises a plurality of current sensors and an air circuit breaker,

the sensing module is used for acquiring current information of a branch loop air circuit breaker in the distribution box in real time and acquiring voltage information and current information of a main air circuit breaker of the distribution box;

the leakage protection module is used for monitoring the current information of the total air circuit breaker in real time, recording the leakage time after leakage and giving an alarm;

the data acquisition module is used for converting the current information and the voltage information into digital information;

the data processing and control module is used for respectively extracting load characteristic quantities on each air circuit breaker according to the current and voltage data information acquired from the data acquisition module and identifying the online load electrical appliances, and storing the names, online states, real-time powers, used powers, online durations, online time and real-time waveform information of the online electrical appliances into the storage module;

the storage module is used for storing the respective online time and power of each state of each electric appliance in the whole month in the last month, and storing the online state, real-time power, used power, online time and real-time waveform information of the load electric appliance in the current month from zero;

the display module is used for displaying the name, the online state, the real-time power, the used power, the online duration, the online time and the real-time waveform information of the online electric appliance, and providing a window for a user to manually identify the load which cannot be identified by the data processing and control module;

the power supply module is used for maintaining the continuous normal work of the data processing and control module and the display module

As a further scheme of the invention: the data processing and control module adopts an STM32F469 singlechip.

A semi-intrusive load monitoring method applied to a household distribution box comprises the following steps:

s1: the sensing module collects current information of each air circuit breaker in the distribution box in real time, and voltage information and current information of the total air circuit breaker of the distribution box, and transmits the information to the data collection module;

s2: converting the current and voltage information obtained in the step S1 into digital signals through a data acquisition module;

s3: the data processing and control module processes the digital signal obtained in the step S2, obtains the load characteristics of the online electric appliance, judges the load characteristics, identifies the online electric appliance, identifies the state of the online electric appliance, calculates the real-time power and the used power of the online electric appliance, calculates the online time of the online electric appliance, records the online time of the online electric appliance, transmits the information to the storage module and displays the information on the display module.

As a further scheme of the invention: in S3, for the unidentifiable online electrical appliance, the data processing and control module still identifies the state of the online electrical appliance, calculates the real-time power and the used power of the online electrical appliance, calculates the online duration of the online electrical appliance, records the online time of the online electrical appliance, and the display module provides a user window for the user to fill in the name of the electrical appliance.

As a still further scheme of the invention: in S1, the leakage protection module monitors the current information of the main loop zero line and live line combination in real time, and if the information is abnormal, the main switch breaker is disconnected.

The system can be applied to semi-invasive load monitoring, online electrical appliance identification and manual identification and electrical appliance correction of the household distribution box.

Compared with the prior art, the invention has the beneficial effects that: the system realizes real-time judgment of the running state of each air circuit breaker loop electric appliance of the household distribution box by a semi-invasive load monitoring method, and has a leakage protection function.

Drawings

Fig. 1 is a schematic structural diagram of a semi-intrusive load monitoring system applied to a household distribution box.

Fig. 2 is a schematic structural diagram of a sensing module in a semi-intrusive load monitoring system applied to a household distribution box.

In the figure: 101-a sensing module, 102-a leakage protection module, 103-a data acquisition module, 104-a power supply module, 105-a data processing and control module, 106-a storage module and 107-a display module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, a semi-intrusive load monitoring system applied to home distribution boxes includes a sensing module 101, where the sensing module 101 is provided with a voltage sensor and a current sensor, and the current sensor and the voltage sensor set requirements: a current sensor is arranged below each branch air switch and used for acquiring current information of each branch circuit in the household distribution box, a voltage sensor and a current sensor are arranged below the main air switch, and the current sensor below the main air switch is used for acquiring the combined information of a zero line and a live line and monitoring the leakage condition of the distribution box; the sensing module 101 comprises a plurality of current sensors and an air circuit breaker, the current sensors on the main loop are connected with the leakage protection module 102, the current sensors on the branch loops are connected with the data acquisition module 103, the data acquisition module 103 is connected with the data processing and control module 105, the data processing and control module 105 is respectively connected with the display module 107 and the storage module 106 in two directions, the data acquisition module 103 supplies power through the power supply module 104, wherein,

the sensing module 101 is used for acquiring current information of a branch loop air circuit breaker in the distribution box in real time and acquiring voltage information and current information of a main air circuit breaker of the distribution box; the sensing module 101 transmits the voltage information and the branch circuit current information to the data acquisition module 102, and transmits the total switch current information to the leakage protection module 102.

The electric leakage protection module 102 is used for monitoring the current information of the total air circuit breaker in real time, recording the electric leakage time after electric leakage and sending an alarm; monitoring and receiving the current information of the main switch transmitted by the sensing module 101, and controlling the main air switch to be switched off if the current information of the main switch is abnormal; the data acquisition module 103 converts the physical information transmitted from the sensing module 101 into digital information, and transmits the digital information to the data processing and control module 105.

The data acquisition module 103 is configured to convert the current information and the voltage information into digital information;

the data processing and controlling module 105 is configured to extract load characteristic quantities on each air circuit breaker according to the current and voltage data information acquired by the data acquiring module 103, identify an online load electrical appliance, and store the name, online state, real-time power, used power, online duration, online time and real-time waveform information of the online load electrical appliance in the storage module 106;

the storage module 106 is configured to store the respective online time and power of each state of each electrical appliance in the whole month of the previous month, and to store the online state, real-time power, used power, online time and real-time waveform information of the load electrical appliance in the current month from zero;

the display module 107 is configured to display the name, online state, real-time power, used power, online duration, online time, and real-time waveform information of the online electrical appliance, and provide a window for a user to manually identify a load that cannot be identified by the data processing and control module 105;

the power supply module 104 is configured to maintain the data processing and control module 105 and the display module 107 to work continuously and normally.

The data processing and control module 105 adopts an STM32F469 singlechip, and the inside of the device chip is integrated with a Flexible Memory Controller (FMC) and a dual-mode Quad SPI interface, so that the memory range is easily expanded. FMC operating at 90 MHz has a 32 bit parallel interface and can support Compact Flash, SRAM, PSRAM, NOR, NAND and SDRAM memories. The working frequency of the dual-mode Quad SPI is 90 MHz, thereby realizing NOR Flash with high cost performance and supporting a memory mapping mode. The chip integrates up to 17 16 and 32 bit timers with frequencies up to 180MHz, up to 180MHz operating frequency.

The STM32F469 singlechip has the following characteristics:

1) the performance is strong, and more tasks can be processed under the same main frequency;

2) the power consumption is low, the dynamic power consumption adjusting function is realized, the power consumption is 120 muA under the shutdown mode of current consumption (@ 180 MHz) of low to 280 muA/MHz in the running mode and during storage and execution from Flash

3) Under the frequency of 180MHz, when being executed from Flash, STM32F446 and STM32F479 singlechips can provide 225DMIPS/608 CoreMark performance, and utilize ART accumulator ™ of ideogram semiconductor to realize zero-waiting state.

A semi-intrusive load monitoring method applied to a household distribution box comprises the following steps:

s1: the system comprises a sensing module (01), a data acquisition module (103), a data acquisition module (2), a data processing module (1) and a data processing module (2), wherein the sensing module is used for acquiring current information of each air circuit breaker in a distribution box, voltage information and current information of a total air circuit breaker of the distribution box in real time and transmitting the information to the data acquisition module;

s2: converting the current and voltage information obtained in the step S1 into digital signals through the data acquisition module 103;

s3: the data processing and control module 105 processes the digital signal obtained in S2 to obtain the load characteristics of the online electrical appliance, determines, identifies the online electrical appliance, identifies the state of the online electrical appliance, calculates the real-time power and the used power of the online electrical appliance, calculates the online duration of the online electrical appliance, records the online time of the online electrical appliance, transmits the information to the storage module 106, and displays the information on the display module 107.

Referring to fig. 2, in the distribution box, a voltage sensor acquires voltage at the main air switch, a current sensor acquires current information of the main air switch and current information of the branch air switch, respectively, the current information acquired at the main air switch is transmitted to the leakage protection module 102, and the voltage information of the main air switch and the current information of the branch air switch are transmitted to the data processing and control module 105.

The working principle of the invention is as follows: the data processing and control module 105 processes the acquired information, changes the current voltage into an effective value, detects transient information of the current voltage, extracts a steady-state waveform and a transient-state waveform before and after the transient voltage current, processes the steady-state waveform, extracts information of active power, reactive power, a phase, the transient-state waveform and the like as load characteristics of the electric appliance, compares the obtained load characteristic quantity of the electric appliance with typical characteristic information of the electric appliance in a database, searches for a matched electric appliance, gives manual identification to a user through the display module 107 if the electric appliance cannot be identified, and corrects the typical electric appliance characteristics of the database through an evolutionary algorithm if the electric appliance cannot be identified as the existing electric appliance in the database.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.