CN109725212A - A kind of household electricity condition monitoring identifying system and its monitoring recognition methods - Google Patents
A kind of household electricity condition monitoring identifying system and its monitoring recognition methods Download PDFInfo
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- CN109725212A CN109725212A CN201811366954.9A CN201811366954A CN109725212A CN 109725212 A CN109725212 A CN 109725212A CN 201811366954 A CN201811366954 A CN 201811366954A CN 109725212 A CN109725212 A CN 109725212A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
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Abstract
The present invention provides a kind of household electricity condition monitoring identifying system and its monitoring recognition methods, the electricity consumption condition monitoring identifying system includes electrical signal collection unit, environmental signal acquisition unit, filter unit, A/D converting unit, control processing unit, storage unit, display unit, key-press input unit, communication unit, alarm unit and incoming switch；Electricity consumption situation is monitored according to the electric signal of acquisition and environmental signal, load matching is carried out by the domestic electric network current harmonics coefficient, alarm can be issued in time when being abnormal, and intelligently disconnect the incoming switch, it is ensured that the safety of household electricity.The present invention provides a kind of household electricity condition monitoring identifying system and method, carries out load matching by domestic electric network current harmonics coefficient, the operation conditions of each load of accurate measurements improves the safety and reliability of household electricity.
Description
Technical field
The invention belongs to technical field of electric power detection, in particular to a kind of household electricity condition monitoring identifying system and its prison
Detection identifying method.
Background technique
With the continuous development of science and technology and national economy, demand of the people to electric power is higher and higher, in order to meet people
Production and life demand, more and more electrical equipments use described in people.Family is as the important of electricity needs
Component part is more paid attention to because closely bound up with people's lives by power worker.
In order to guarantee the quality of domestic electric network, need to be monitored household electricity situation.Traditional monitoring device uses
The method of synchronized sampling detects domestic electric network frequency at equal intervals, and this method of sampling is unable to real-time update in mains frequency fluctuation
Sampled point is adjusted, error can be brought to subsequent Data Analysis Services.The present invention calculates family's mains frequency, root using phaselocked loop
Synchronized sampling complete cycle is carried out according to obtained frequency cycle, load matching is carried out by domestic electric network current harmonics coefficient, accurately
The operation conditions for monitoring each load, improves the safety and reliability of household electricity.
Summary of the invention
The present invention provides a kind of household electricity condition monitoring identifying system and method, passes through domestic electric network current harmonics coefficient
Load matching is carried out, the operation conditions of each load of accurate measurements improves the safety and reliability of household electricity.
The present invention is specially a kind of household electricity condition monitoring identifying system, and the electricity consumption condition monitoring identifying system includes
Electrical signal collection unit, filter unit, A/D converting unit, control processing unit, storage unit, is shown environmental signal acquisition unit
Show unit, key-press input unit, communication unit, alarm unit and incoming switch, the electrical signal collection unit and the filtering
Unit, the A/D converting unit, the control processing unit be linked in sequence, the control processing unit also respectively with the ring
Border signal acquisition unit, the A/D converting unit, the control processing unit, the storage unit, the display unit, institute
State key-press input unit, the communication unit, the alarm unit, incoming switch connection；According to the electric signal of acquisition and
Environmental signal is monitored electricity consumption situation, carries out load matching by the domestic electric network current harmonics coefficient, different in generation
Alarm can be issued in time when often, and intelligently disconnects the incoming switch, it is ensured that the safety of household electricity.
The electrical signal collection unit includes voltage transformer, current transformer and current/voltage converter circuit, the electricity
Mutual inductor collection voltages signal is pressed, the current transformer acquires current signal, and the current signal is passing through the electric current/electricity
Voltage conversion circuit is converted to voltage signal；The environmental signal acquisition unit includes temperature sensor, humidity sensor, noise biography
Sensor and PM2.5 sensor, temperature, humidity, noise and the air quality of difference collection site environment.
The filter unit filters out high-frequency noise and interference using quadravalence frequency overlapped-resistable filter, and output meets the A/D and turns
Change the voltage signal of unit requirement.
The key-press input unit carries out parameter setting, the parameter packet in conjunction with the storage unit, the display unit
Include electric current alarming value, temperature alarming value, humidity alarm value, noise alarm value, PM2.5 alarming value and property data base；The spy
Levy the current harmonics coefficient that database includes all electrical equipments；The control processing unit is with reference to parameter area judgement electricity
Whether stream, temperature, humidity, noise, PM2.5 value are normal, if abnormal shown by the display unit, pass through the alarm
Unit issues alarm, and then takes solution.
The communication unit is connect using wireless communication technique with kinsfolk's mobile phone, monitoring center, by the electricity consumption shape
Condition monitoring identifying system detection identification data are uploaded to kinsfolk's mobile phone and the monitoring center.
The control processing unit calculates the domestic electric network frequency, including phase discriminator software, low pass filtered using phaselocked loop
Wave device software, voltage controlled oscillator software, the phase discriminator software and the low-pass filter software, the voltage controlled oscillator software
Sequence calculates, and the phase discriminator software inputs the filter unit output signal and the voltage controlled oscillator output signal, described
Voltage controlled oscillator output signal, when the voltage controlled oscillator output signal is synchronous with the filter unit phase of output signal,
The voltage controlled oscillator output signal frequency is the domestic electric network frequency signal.
The present invention also provides a kind of monitoring recognition methods of household electricity condition monitoring identifying system, the monitoring identification side
Method includes the following steps:
Step (1): the electrical signal collection unit acquisition current signal and voltage signal；The environmental signal acquisition unit
Temperature, humidity, noise and the air mass signal of collection site environment input the control processing unit；
Step (2): the current signal is being converted to voltage signal by the current/voltage converter circuit；
Step (3): the electrical signal collection element output signal filters out high-frequency noise and interference by the filter unit,
Output meets the voltage signal that the A/D converting unit requires, and inputs the A/D converting unit respectively and control processing is single
Member；
Step (4): A/D conversion is carried out by the A/D converting unit, and inputs the control processing unit；
Step (5): the alarm that the current signal, temperature signal, moisture signal, noise signal, PM2.5 value are first set
Value is compared, and is judged whether normal: if not issuing alarm within the scope of the alarming value；If not in the alarming value range
It is interior, it is issued and is alarmed by the alarm unit, intelligence disconnects the incoming switch；
Step (6): by the phase discriminator software calculate input it is described control processing unit signal frequency with it is described
Voltage controlled oscillator software output signal frequency difference, the voltage controlled oscillator software output signal frequency initial value is zero；
Step (7): filtering out high fdrequency component by the low-pass filter software, obtains the adjustment voltage controlled oscillator
The voltage of software frequency；
Step (8): the voltage controlled oscillator software output frequency signal is controlled to the letter for inputting the control processing unit
Number frequency is drawn close, and until frequency is identical, Phase synchronization at this time, loop is locked, obtains the domestic electric network frequency signal；
Step (9): carrying out synchronized sampling complete cycle to voltage and current, and obtaining the period is that T has limit for length's discrete time sequence
U (t) and i (t) are arranged, and carries out Fourier transformation and obtainsU0For fundamental voltage, I0For fundamental current,
UkFor harmonic voltage, IkFor harmonic current, ω is fundamental frequency,For fundamental voltage phase,Fundamental current phase, n are base
Wave multiple, n=0,1,2；
Step (10): the domestic electric network active power is calculatedPower factor
Step (11): the domestic electric network current harmonics coefficient is calculated
Step (12): the current harmonics coefficient is matched with the feature database, determines the type of load；
Step (13): storage is carried out to monitoring result by the storage unit and the display unit and is shown；
Step (14): monitoring result is uploaded in kinsfolk's mobile phone and the monitoring by the communication unit
The heart.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of household electricity condition monitoring identifying system of the present invention.
Fig. 2 is that a kind of household electricity condition monitoring identifying system control of the present invention calculates the phaselocked loop that mains frequency uses.
Fig. 3 is the flow chart that a kind of household electricity condition monitoring identifying system of the present invention monitors recognition methods.
Specific embodiment
The specific embodiment based on domestic electric network electrical energy parameter monitoring system a kind of to the present invention is done with reference to the accompanying drawing
It elaborates.
As shown in Figure 1, electricity consumption condition monitoring identifying system of the invention includes electrical signal collection unit, environmental signal acquisition
Unit, filter unit, A/D converting unit, control processing unit, storage unit, display unit, key-press input unit, communication unit
Member, alarm unit and incoming switch, the electrical signal collection unit and the filter unit, the A/D converting unit, the control
Processing unit processed is linked in sequence, and the control processing unit is also single with the environmental signal acquisition unit, A/D conversion respectively
First, the described control processing unit, the storage unit, the display unit, the key-press input unit, the communication unit,
The alarm unit, incoming switch connection；Electricity consumption situation is monitored according to the electric signal of acquisition and environmental signal, is led to
It crosses the domestic electric network current harmonics coefficient and carries out load matching, alarm can be issued in time when being abnormal, and intelligently break
Open the incoming switch, it is ensured that the safety of household electricity.
The electrical signal collection unit includes voltage transformer, current transformer and current/voltage converter circuit, the electricity
Mutual inductor collection voltages signal is pressed, the current transformer acquires current signal, and the current signal is passing through the electric current/electricity
Voltage conversion circuit is converted to voltage signal；The environmental signal acquisition unit includes temperature sensor, humidity sensor, noise biography
Sensor and PM2.5 sensor, temperature, humidity, noise and the air quality of difference collection site environment.
The filter unit filters out high-frequency noise and interference using quadravalence frequency overlapped-resistable filter, and output meets the A/D and turns
Change the voltage signal of unit requirement.
The key-press input unit carries out parameter setting, the parameter packet in conjunction with the storage unit, the display unit
Include electric current alarming value, temperature alarming value, humidity alarm value, noise alarm value, PM2.5 alarming value and property data base；The spy
Levy the current harmonics coefficient that database includes all electrical equipments；The control processing unit is with reference to parameter area judgement electricity
Whether stream, temperature, humidity, noise, PM2.5 value are normal, if abnormal shown by the display unit, pass through the alarm
Unit issues alarm, and then takes solution.
The communication unit is connect using wireless communication technique with kinsfolk's mobile phone, monitoring center, by the electricity consumption shape
Condition monitoring identifying system detection identification data are uploaded to kinsfolk's mobile phone and the monitoring center.
As shown in Fig. 2, the control processing unit is soft using the phaselocked loop calculating domestic electric network frequency, including phase discriminator
Part, low-pass filter software, voltage controlled oscillator software, it is the phase discriminator software and the low-pass filter software, described voltage-controlled
Oscillator software sequence calculates, and the phase discriminator software inputs the filter unit output signal and voltage controlled oscillator output
Signal, the voltage controlled oscillator output signal, when the voltage controlled oscillator output signal and the filter unit output signal phase
When bit synchronization, the voltage controlled oscillator output signal frequency is the domestic electric network frequency signal.
As shown in figure 3, the present invention also provides a kind of monitoring recognition methods of household electricity condition monitoring identifying system, it is described
Monitoring recognition methods includes the following steps:
Step (1): the electrical signal collection unit acquisition current signal and voltage signal；The environmental signal acquisition unit
Temperature, humidity, noise and the air mass signal of collection site environment input the control processing unit；
Step (2): the current signal is being converted to voltage signal by the current/voltage converter circuit；
Step (3): the electrical signal collection element output signal filters out high-frequency noise and interference by the filter unit,
Output meets the voltage signal that the A/D converting unit requires, and inputs the A/D converting unit respectively and control processing is single
Member；
Step (4): A/D conversion is carried out by the A/D converting unit, and inputs the control processing unit；
Step (5): the alarm that the current signal, temperature signal, moisture signal, noise signal, PM2.5 value are first set
Value is compared, and is judged whether normal: if not issuing alarm within the scope of the alarming value；If not in the alarming value range
It is interior, it is issued and is alarmed by the alarm unit, intelligence disconnects the incoming switch；
Step (6): by the phase discriminator software calculate input it is described control processing unit signal frequency with it is described
Voltage controlled oscillator software output signal frequency difference, the voltage controlled oscillator software output signal frequency initial value is zero；
Step (7): filtering out high fdrequency component by the low-pass filter software, obtains the adjustment voltage controlled oscillator
The voltage of software frequency；
Step (8): the voltage controlled oscillator software output frequency signal is controlled to the letter for inputting the control processing unit
Number frequency is drawn close, and until frequency is identical, Phase synchronization at this time, loop is locked, obtains the domestic electric network frequency signal；
Step (9): carrying out synchronized sampling complete cycle to voltage and current, and obtaining the period is that T has limit for length's discrete time sequence
U (t) and i (t) are arranged, and carries out Fourier transformation and obtainsU0For fundamental voltage, I0For fundamental current,
UkFor harmonic voltage, IkFor harmonic current, ω is fundamental frequency,For fundamental voltage phase,Fundamental current phase, n are base
Wave multiple, n=0,1,2；
Step (10): the domestic electric network active power is calculatedPower factor
Step (11): the domestic electric network current harmonics coefficient is calculated
Step (12): the current harmonics coefficient is matched with the feature database, determines the type of load；
Step (13): storage is carried out to monitoring result by the storage unit and the display unit and is shown；
Step (14): monitoring result is uploaded in kinsfolk's mobile phone and the monitoring by the communication unit
The heart.
Finally it should be noted that only illustrating technical solution of the present invention rather than its limitations in conjunction with above-described embodiment.Institute
The those of ordinary skill in category field is it is to be understood that those skilled in the art can repair a specific embodiment of the invention
Change or equivalent replacement, but these modifications or change are being applied among pending claims.
Claims (7)
1. a kind of household electricity condition monitoring identifying system, which is characterized in that the electricity consumption condition monitoring identifying system includes electricity
Signal acquisition unit, environmental signal acquisition unit, filter unit, A/D converting unit, control processing unit, storage unit, display
Unit, key-press input unit, communication unit, alarm unit and incoming switch, the electrical signal collection unit and the filtering are single
First, the described A/D converting unit, the control processing unit be linked in sequence, the control processing unit also respectively with the environment
It is signal acquisition unit, the A/D converting unit, the control processing unit, the storage unit, the display unit, described
Key-press input unit, the communication unit, the alarm unit, incoming switch connection；According to the electric signal and ring of acquisition
Border signal is monitored electricity consumption situation, carries out load matching by the domestic electric network current harmonics coefficient, is being abnormal
When can issue alarm in time, and intelligently disconnect the incoming switch, it is ensured that the safety of household electricity.
2. a kind of household electricity condition monitoring identifying system according to claim 1, which is characterized in that the electric signal is adopted
Collection unit includes voltage transformer, current transformer and current/voltage converter circuit, the voltage transformer collection voltages letter
Number, the current transformer acquires current signal, and the current signal is being converted to electricity by the current/voltage converter circuit
Press signal；The environmental signal acquisition unit includes temperature sensor, humidity sensor, noise transducer and PM2.5 sensor,
Temperature, humidity, noise and the air quality of collection site environment respectively.
3. a kind of household electricity condition monitoring identifying system according to claim 2, which is characterized in that the filter unit
High-frequency noise and interference are filtered out using quadravalence frequency overlapped-resistable filter, output meets the voltage signal that the A/D converting unit requires.
4. a kind of household electricity condition monitoring identifying system according to claim 3, which is characterized in that the key-press input
Unit carries out parameter setting in conjunction with the storage unit, the display unit, and the parameter includes electric current alarming value, temperature alarming
Value, humidity alarm value, noise alarm value, PM2.5 alarming value and property data base；The property data base includes that all electric appliances are set
Standby current harmonics coefficient；The control processing unit with reference to the parameter area judge electric current, temperature, humidity, noise,
Whether PM2.5 value is normal, if abnormal shown by the display unit, is issued and is alarmed by the alarm unit, in turn
Take solution.
5. a kind of household electricity condition monitoring identifying system according to claim 4, which is characterized in that the communication unit
It is connect using wireless communication technique with kinsfolk's mobile phone, monitoring center, the electricity consumption condition monitoring identifying system is detected and is known
Other data are uploaded to kinsfolk's mobile phone and the monitoring center.
6. a kind of household electricity condition monitoring identifying system according to claim 5, which is characterized in that the control processing
Unit is soft using the phaselocked loop calculating domestic electric network frequency, including phase discriminator software, low-pass filter software, voltage controlled oscillator
Part, the phase discriminator software and the low-pass filter software, voltage controlled oscillator software sequence calculate, and the phase discriminator is soft
The part input filter unit output signal and the voltage controlled oscillator output signal, the voltage controlled oscillator output signal, when
When the voltage controlled oscillator output signal is synchronous with the filter unit phase of output signal, the voltage controlled oscillator output signal
Frequency is the domestic electric network frequency signal.
7. the monitoring recognition methods of household electricity condition monitoring identifying system described in any one of -6 according to claim 1,
It is characterized in that, the monitoring recognition methods includes the following steps:
Step (1): the electrical signal collection unit acquisition current signal and voltage signal；The environmental signal acquisition unit acquisition
Temperature, humidity, noise and the air mass signal of site environment input the control processing unit；
Step (2): the current signal is being converted to voltage signal by the current/voltage converter circuit；
Step (3): the electrical signal collection element output signal filters out high-frequency noise and interference by the filter unit, exports
Meet the voltage signal that the A/D converting unit requires, inputs the A/D converting unit and the control processing unit respectively；
Step (4): A/D conversion is carried out by the A/D converting unit, and inputs the control processing unit；
Step (5): the alarming value that the current signal, temperature signal, moisture signal, noise signal, PM2.5 value are first set into
Row compares, and judges whether normal: if not issuing alarm within the scope of the alarming value；If leading to not within the scope of the alarming value
It crosses the alarm unit and issues alarm, intelligence disconnects the incoming switch；
Step (6): by the phase discriminator software calculate input it is described control processing unit signal frequency with it is described voltage-controlled
Oscillator software output signal frequency difference, the voltage controlled oscillator software output signal frequency initial value is zero；
Step (7): filtering out high fdrequency component by the low-pass filter software, obtains the adjustment voltage controlled oscillator software
The voltage of frequency；
Step (8): the voltage controlled oscillator software output frequency signal is controlled to the signal frequency for inputting the control processing unit
Rate is drawn close, and until frequency is identical, Phase synchronization, loop are locked at this time, obtains the domestic electric network frequency signal；
Step (9): carrying out synchronized sampling complete cycle to voltage and current, and obtaining the period is that T has limit for length's discrete-time series u
(t) and i (t) it, and carries out Fourier transformation and obtains
U0For fundamental voltage, I0For fundamental current, UkFor harmonic voltage, IkFor harmonic current, ω is fundamental frequency,For fundamental voltage
Phase,Fundamental current phase, n be fundamental wave multiple, n=0,1,2；
Step (10): the domestic electric network active power is calculatedPower factor
Step (11): the domestic electric network current harmonics coefficient is calculated
Step (12): the current harmonics coefficient is matched with the feature database, determines the type of load；
Step (13): storage is carried out to monitoring result by the storage unit and the display unit and is shown；
Step (14): monitoring result is uploaded to by kinsfolk's mobile phone and the monitoring center by the communication unit.
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| CN201811366954.9A CN109725212B (en) | 2018-11-16 | 2018-11-16 | Household electricity consumption condition monitoring and identifying system and monitoring and identifying method thereof |
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| CN201811366954.9A CN109725212B (en) | 2018-11-16 | 2018-11-16 | Household electricity consumption condition monitoring and identifying system and monitoring and identifying method thereof |
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| CN115437303A (en) * | 2022-11-08 | 2022-12-06 | 壹控智创科技有限公司 | Wisdom safety power consumption monitoring and control system |
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