CN105093030A - Electricity abnormity early warning apparatus based on intelligent household system - Google Patents
Electricity abnormity early warning apparatus based on intelligent household system Download PDFInfo
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- CN105093030A CN105093030A CN201510544359.XA CN201510544359A CN105093030A CN 105093030 A CN105093030 A CN 105093030A CN 201510544359 A CN201510544359 A CN 201510544359A CN 105093030 A CN105093030 A CN 105093030A
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Abstract
The invention discloses an electricity abnormity early warning apparatus based on an intelligent household system, and relates to the field of safety protection of an intelligent household, for the purposes of solving the technical problems of incapability of detecting abnormal power sources in intelligent household lines, incapability of distinguishing malicious invasive power failure from large-scale regional power failure, incapability of facilitating escape of residents in case of disasters, lack of feedback control and effective communication, untimely startup of backup power sources and the like by use of conventional intelligent household safety protection equipment. The structure provided by the invention is characterized by comprising a central control early warning module which is used for examining effective values of commercial power and receives the commercial power; a zero-crossing detection unit which is used for examining the frequency of the commercial power, receives the commercial power and outputs detection signals; and an identifying module which receives the detection signals and outputs identifying signals to the central control early warning module. The electricity abnormity early warning apparatus provided by the invention is applied to electricity abnormity early warning of the intelligent household system.
Description
Technical field
The present invention relates to smart home security field, be specifically related to a kind of electrical anomaly prior-warning device based on intelligent domestic system.
Background technology
Along with the continuous progress of science and technology and the raising gradually of living standard, intelligent home device miscellaneous enters the life of people.But malicious intrusions equipment also more and more has hiding thereupon, not even with when cutting off the electricity supply, carry out destructiveness invasion.Existing intelligent home device, generally all with the electrical quantity of civil power for design standards, almost cannot tackle emergency case that power end occurs or other sabotage behavior: power-off, supply frequency or amplitude are by extraneous malicious interference; That is, when intelligent home device occurs power-off, supply frequency or amplitude by extraneous malicious interference situation, immediately with regard to fault or malfunctioning.Especially, smart home security equipment or gate inhibition's facility, process power events is not intelligent; There is smart home security equipment or gate inhibition's facility of power-off protection alarm, non-malicious power events can not be distinguished, easy false alarm, cause unnecessary loss; Most security device or gate inhibition's facility, be provided with the spacer assembly that cuts off self-lock, this, when the disaster such as fire and earthquake occurs, is unfavorable for that resident family escapes; Existing power-off prior-warning device, the event being caused the malfunctioning or fault of intelligent home device by malicious interference supply frequency or amplitude can not be detected, namely intelligent home device frequency of operation and power are disturbed, make it malfunctioning or be in abnormal operating state, and, this invasion mode can't trigger standby power supply (power-off trigger system), and equipment will continue the driving being subject to " bad " power supply, cause being in abnormal operation for a long time and damage or fault malfunctioning.
In addition, existing malicious intrusions behavior, usually, steals for single household in a street district or destroys with implementing; Particularly, destroy for the power supply of smart home security equipment or gate inhibition's facility or circuit line.
Summary of the invention
For above-mentioned prior art, the object of the invention is to provide a kind of electrical anomaly prior-warning device based on intelligent domestic system, it is intended to solve existing smart home security equipment can not detect abnormal power supply in Smart Home circuit, malicious intrusions power-off and large-scale area power-off can not be distinguished, resident family's escape when being unfavorable for that disaster occurs, lacks FEEDBACK CONTROL, efficient communication and standby power supply starts the technical matters such as not in time.In addition, the enlightenment of far-reaching technology is produced to industry target: only based on the intelligent domestic system that this family civil power is built, when this family city electrical anomaly, will original function be lost, even cannot effectively start standby power supply; Unconventionally, by independently hidden wiring access close quarters civil power bus, achieve inspection, monitoring and meet an urgent need, and creating unexpected breakthrough effect.
For achieving the above object, the technical solution used in the present invention is as follows:
Based on an electrical anomaly prior-warning device for intelligent domestic system, comprise for controlling warning module in the inspection of civil power effective value: receive civil power; Zero passage detection unit for mains frequency inspection: receive civil power and output detections signal; Discrimination module: receive detection signal and export judgment signal to middle control warning module.
In such scheme, described civil power, comprises this family civil power and close quarters civil power.Creatively, access close quarters civil power, walked around this family civil power input bus, controlled warning module by this family civil power and the access of close quarters civil power simultaneously, the effective value change of real time contrast's two type civil powers; Significantly and substantially, distinguish regional electrical anomaly and single household suffers malicious intrusions, improved the accuracy of identification of malicious intrusions behavior, reduce invasion rate of false alarm.
In such scheme, preferably, described close quarters civil power, comprises many close quarters civil powers, by independent hidden wiring, controls warning module in connection.Significantly and substantially, add hiding, possibility that is malfunctioning when middle control prior-warning device is subject to electricity invasion or fault is significantly reduced.
In such scheme, preferably, described middle control warning module, receives civil power by transformer.Provide step-down, isolation and protection.
In such scheme, preferably, described middle control warning module presets electrical anomaly value, and to depart from scope be ± 30%, and holding time is 1 minute.
In such scheme, described middle control warning module is preset electrical anomaly according to the stability of intelligent domestic system electric consumption and is departed from scope.Intelligent domestic system electricity consumption consumed power is more stable, and it is narrower that electrical anomaly value departs from scope, differentiates that the precision of electrical anomaly event is higher.
In such scheme, described middle control warning module, comprises A/D converter: receive civil power, and exports the digital signal with civil power effective value feature; Processor: the digital signal receiving A/D converter.Provide effective value inspection in real time.
In such scheme, described A/D converter, receives civil power by the mode connecting step-down protector.Provide step-down, isolation and protection.
In such scheme, described zero passage detection unit, comprises the first zero passage detection unit and the second zero passage detection unit.Provide frequency detecting in real time.
In such scheme, preferably, described zero passage detection unit, comprises the digital isolator connected successively, rectifier circuit and voltage comparator circuit.Digital isolator achieves stable, reliable insulation blocking, and leaches random noise disturbance.
In such scheme, described discrimination module, comprises XOR gate: receive detection signal; Connect the phase inverter of XOR gate: form same or door with XOR gate; Integrator: connect output terminal that is same or door; Connect the oscillator of integrator: export 60 hertz of resonant pulses.When electrical anomaly appears in this family civil power, achieve electrical anomaly event and differentiate; Provide voltage to strengthen, ensure that prior-warning device carries out emergency operation.
In such scheme, preferably, described middle control warning module, is also connected with the emergency power pack, communication node and/or the feedback node that trigger function processed with electrical anomaly.When regional power-off or disaster occur, provide Emergency power source so that middle control warning module uses the rescue of communication node notice; Feedback node access user control terminal, when there is anomalous event, especially, single household power-off will notify user, to such an extent as to carry out corresponding emergency operation.
In such scheme, preferably, described processor, comprises field programmable gate array and the digital processing unit of coupling mutually.Flexible structure, has stronger versatility, is suitable for modular design, thus can improve matching algorithm efficiency; Its construction cycle is shorter simultaneously, easy maintenance and expansion, is applicable to real time signal processing.
Compared with prior art, the present invention is unconventional, but creates unexpected breakthrough beneficial effect: no matter be that the invasion of malice electricity occurs, or intelligent domestic system fault occurs, can both provide emergency operation; Single household power-off and large-scale area power-off can be distinguished; Mains frequency and RMS to DC can be carried out in real time, judge whether malicious sabotage behavior and intelligent domestic system fault; Emergency communication timely; There is reaction type control, provide high hommization to experience; Flexible structure and versatility is high.
Accompanying drawing explanation
Fig. 1 is module diagram of the present invention;
Fig. 2 is specific embodiments of the invention schematic diagram.
Embodiment
All features disclosed in this instructions, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Below in conjunction with accompanying drawing, the present invention will be further described:
Fig. 1 is module diagram of the present invention, a kind of electrical anomaly prior-warning device based on intelligent domestic system, comprises for controlling warning module in the inspection of civil power effective value: receive civil power; Zero passage detection unit for mains frequency inspection: receive civil power and output detections signal; Discrimination module: receive detection signal and export judgment signal to middle control warning module.
Embodiment 1
Fig. 2 is specific embodiments of the invention schematic diagram, described civil power, comprises this family civil power and close quarters civil power.Described close quarters civil power, comprises many close quarters civil powers, by independent hidden wiring, controls warning module in connection.Described middle control warning module, receives this family civil power and close quarters civil power respectively by the first transformer T1, the second transformer T2.Described middle control warning module presets electrical anomaly value, and to depart from scope be ± 30%, and holding time is 1 minute.Described middle control warning module is preset electrical anomaly according to the stability of intelligent domestic system electric consumption and is departed from scope.Described middle control warning module, comprises A/D converter: receive civil power, and exports the digital signal with civil power effective value feature; Processor: the digital signal receiving A/D converter.Described A/D converter, receives civil power by the mode connecting step-down protector, and step-down protector adopts divider resistance.
Described zero passage detection unit, comprises the first zero passage detection unit and the second zero passage detection unit.Described zero passage detection unit, comprises the digital isolator connected successively, rectifier circuit and voltage comparator circuit.Digital isolator selects direct capacitance formula, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C7 and the 4th electric capacity C8.
Described discrimination module, comprises XOR gate U1A: receive detection signal; Connect the phase inverter U2A of XOR gate U1A: form same or door with XOR gate U1A; Integrator: connect output terminal that is same or door; Connect the oscillator OSC of integrator: export 60 hertz of resonant pulses.Described middle control warning module, is also connected with the emergency power pack, communication node and/or the feedback node that trigger function processed with electrical anomaly.Described processor, comprises field programmable gate array FPGA and the digital processing unit DSP of coupling mutually.
Embodiment 2
Described zero passage detection unit, comprises the first digital isolator receiving civil power: the first electric capacity C1 and the second electric capacity C2; Receive the rectifier bridge that the first digital isolator exports: comprise four diodes D1, D2, D3 and D4; Voltage comparator circuit: the output of rectifier bridge and divider resistance voltage are made comparisons, completes zero passage detection; Voltage comparator circuit also connects a threshold voltage switch D5.
Embodiment 3
Described discrimination module, integrator wherein, comprises the 5th electric capacity C4 in parallel and resistance R6.The time constant of integrator needs the stacking factor being greater than civil power 1/2nd, and be less than the stacking factor of civil power, to such an extent as to when inconsistent pulse appears in two zero passage detection unit, " panting " electric pulse can be sent, during pulse that oscillator OSC receives " panting ", to be not enough to continue to send 60 hertz of pulses, the couter-loop of field programmable gate array FPGA is damaged, and triggers electrical anomaly event.
Embodiment 4
The electricity invasion that apparatus of the present invention identification degree of depth is hidden.In Smart Home load power source access front end, be subject to malice electrical interference, malice electrical interference is frequency significantly disturbance, and destroy civil power stacking factor, make intelligent home device be in abnormal operating state further, long non-normal working can make its fault or malfunctioning, and this is fatal to gate inhibition and intelligent security guard equipment, and exception can not be there is in the line voltage amplitude that middle control warning module detects, but at the first zero passage detection unit place, the zero cross signal with forcing frequency change can be exported, at XOR gate U1A place, export the high level be interrupted, phase inverter U2A will export the low level of being interrupted, pulse that integrator sends " panting ", oscillator OSC exports the pulse lower than 60 hertz, field programmable gate array FPGA counting ring is damaged, further number of notifications word processor DSP, whether digital processing unit DSP is subject to random destroying for times according to field programmable gate array FPGA counting ring, and (single exports without electricity after destroying, be judged to be not intended to power-off or Smart Home line fault, but also can activate feedback node and notify user), if, malicious intrusions will be judged to be, activate communication node and feedback node simultaneously, realize reporting to the police and notifying user.
Embodiment 5
Described processor is applicable to following MCU, DSP, CPU or GPU, the RISC framework of APU, ARM or x86 framework, quantum or the photon CPU choice of technology.The progress of technology is the reference of selection standard; But for changing bad invention, or cost viewpoint, only from the selection of technical scheme of practicality.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly belongs to those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Claims (9)
1., based on an electrical anomaly prior-warning device for intelligent domestic system, it is characterized in that, comprise
For controlling warning module in the inspection of civil power effective value: receive civil power;
Zero passage detection unit for mains frequency inspection: receive civil power and output detections signal;
Discrimination module: receive detection signal and export judgment signal to middle control warning module.
2. a kind of electrical anomaly prior-warning device based on intelligent domestic system according to claim 1, is characterized in that, described civil power, comprises this family civil power and close quarters civil power.
3. a kind of electrical anomaly prior-warning device based on intelligent domestic system according to claim 1, is characterized in that, described middle control warning module, comprises
A/D converter: receive civil power, and export the digital signal with civil power effective value feature;
Processor: the digital signal receiving A/D converter.
4. a kind of electrical anomaly prior-warning device based on intelligent domestic system according to claim 3, is characterized in that, described A/D converter, receives civil power by the mode connecting step-down protector.
5. a kind of electrical anomaly prior-warning device based on intelligent domestic system according to claim 1, is characterized in that, described zero passage detection unit, comprises the first zero passage detection unit and the second zero passage detection unit.
6. a kind of electrical anomaly prior-warning device based on intelligent domestic system according to claim 1, it is characterized in that, described zero passage detection unit, comprises the digital isolator connected successively, rectifier circuit and voltage comparator circuit.
7. a kind of electrical anomaly prior-warning device based on intelligent domestic system according to claim 1, it is characterized in that, described discrimination module, comprises
XOR gate: receive detection signal;
Connect the phase inverter of XOR gate: form same or door with XOR gate;
Integrator: connect output terminal that is same or door;
Connect the oscillator of integrator: export 60 hertz of resonant pulses.
8. a kind of electrical anomaly prior-warning device based on intelligent domestic system according to claim 1, is characterized in that, described middle control warning module, is also connected with emergency power pack, communication node and/or feedback node.
9. a kind of electrical anomaly prior-warning device based on intelligent domestic system according to claim 3, is characterized in that, described processor, comprises field programmable gate array and the digital processing unit of coupling mutually.
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| CN201510544359.XA CN105093030A (en) | 2015-08-31 | 2015-08-31 | Electricity abnormity early warning apparatus based on intelligent household system |
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| CN201510544359.XA CN105093030A (en) | 2015-08-31 | 2015-08-31 | Electricity abnormity early warning apparatus based on intelligent household system |
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| CN109932585A (en) * | 2017-12-18 | 2019-06-25 | 中国科学院沈阳自动化研究所 | The adaptive binary chop algorithm of smart grid-oriented neighborhood net malicious user positioning |
| CN111522246A (en) * | 2020-05-09 | 2020-08-11 | 刘玉华 | Method for detecting abnormity of single sensor in intelligent home system |
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| CN109932585B (en) * | 2017-12-18 | 2021-06-29 | 中国科学院沈阳自动化研究所 | Self-adaptive binary search algorithm for positioning malicious users of neighborhood network of smart power grid |
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Application publication date: 20151125 |