CN104966955A - Intelligent safety socket and control method thereof - Google Patents
Intelligent safety socket and control method thereof Download PDFInfo
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- CN104966955A CN104966955A CN201510390505.8A CN201510390505A CN104966955A CN 104966955 A CN104966955 A CN 104966955A CN 201510390505 A CN201510390505 A CN 201510390505A CN 104966955 A CN104966955 A CN 104966955A
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Abstract
The invention discloses an intelligent safety socket and a control method thereof. The socket includes a first double-pole relay, a second double-pole relay, a plug-in state monitoring/detection module, an alarm unit, an impedance characteristic detection module, and a current and waveform detection module that are connected with a microprocessor. The plug-in state monitoring/detection module detects the plug-in state of a plug and performs closing and opening based on load impedance characteristics. The socket performs closing to power up when it is detected that the plug-in state of the plug is normal and the load impedance characteristics meet the setting requirement, and can monitor the plug-in state of the plug in real time, so that safety and reliability are guaranteed. The closing and opening are carried out based on the load impedance characteristics, arc and spark can be eliminated, power and personal safety can be guaranteed, current noises are reduced, and the power consumption is green. After some abnormal cases occur, the self-detection is started again, and when the abnormal cases are solved, the normal work state is self-recovered, and the aim of self-recovery is achieved.
Description
Technical field
The present invention relates to safety utilization of electric power technical field, be specially a kind of Intelligent safety socket and control method thereof.
Background technology
Along with productive life water product improve constantly, electricity consumption product is increasing, and safety utilization of electric power and intelligent power become matter of utmost importance.The security incident such as fire, the casualties caused, electric equipment damage produced due to Electrical Safety happens occasionally, and brings tremendous influence to productive life.Increasing of power consumption equipment, behavior adjustment management difficulty strengthens, and general safety unfailing performance reduces.Thus safety utilization of electric power, intelligent power have received the concern of more and more people.
The Intelligent safety socket had at present, such as issued patents number is CN103715566A, bulletin time 2014.04.09, the patent of invention that issued patents is called " a kind of safety socket of Based Intelligent Control ", its socket needs supporting plug special, without antispark process during insertion, only have current detecting after energising, fail to carry out in real time to leak electricity, short-circuit detecting, still there is potential safety hazard, and can only matched plug be used, the scope of application is narrow.And for example issued patents number is CN103022823A, the bulletin time is 2013.04.03, the patent of invention of patent " Intelligent safety socket " by name, fail to detect diplopore during insertion to insert or single hole insertion, only simply judge that resistive impedance is zero or infinitely great, even if external loading short circuit, because impedance is the attribute of material own, except low-temperature superconducting situation, under normal temperature, impedance is non-vanishing, can not reach security protection object.When impedance is infinitely great, does not do further judgement, directly allow output circuit not work, in practical application, there is the power consumption equipment of mechanical switch, such as fan, can not start.When and for example now equipment is with electrical socket plug, is mostly charged plug, has very large potential safety hazard: one when being plug, Danger Electric shock risk may occur; Two is have electric arc to produce, and affects the stabilization of power grids, reduces the useful life of socket and plate.For another example, after fault occurs, without self-inspection self-recoverage, affect experience, fail to reach intelligent object.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide one can Real-Time Monitoring/detection insert state, plug electric arc and electric spark, the self-healing Intelligent safety socket of failture evacuation and control method thereof can be eliminated, technical scheme is as follows:
A kind of Intelligent safety socket, comprises the first two keys relay, insert state monitoring/detection module, microprocessor and alarm unit; Described first two keys relay comprises coil Q1, plug-in strip K1 and K2, and distinguish the first corresponding contact and the second contact with plug-in strip K1 and K2, described microprocessor is connected to coil Q1, for control coil Q1 power on/off, plug-in strip K1 with K2 is connected with the N phase jack of socket and L phase jack respectively, and the first contact and the second contact are connected respectively to N phase and the L phase of power transmission line; Described insert state monitoring/detection module is connected to the jack of socket; Described microprocessor also connects insert state monitoring/detection module and alarm unit respectively.
Further, the second two keys relay, impedance operator detection module and electric current and waveform detection module is also comprised; Described first two keys relay is dpdt relay, also comprises three contact corresponding respectively with plug-in strip K1 and K2 and the 4th contact; Described second two keys relay comprises coil Q2, plug-in strip K5 and K6, and distinguish the 5th corresponding contact and the 6th contact with plug-in strip K5 and K6, described microprocessor is connected to coil Q2, for control coil Q2 power on/off, plug-in strip K5 connects the 3rd contact, plug-in strip K6 connects the 4th contact, and the 5th contact and the 6th contact are connected to impedance operator detection module; Described electric current and waveform detection module are coupling-connected to N phase and the L phase of power transmission line; Described microprocessor is also connected respectively to impedance operator detection module and electric current and waveform detection module.
Further, also comprise wireless module, the Signal transmissions end of described wireless module is connected to microprocessor, and power input is connected to power module.
A control method for Intelligent safety socket, comprising:
1) initialization: control the first two keys relay plug-in strip K1 and K2 and be off state;
2) start insert state monitoring/detection module and detect insert state;
3) if detect, insert state is abnormal, starts alarm unit and reports to the police;
4) step 1) is returned after the time delay T1 period;
5) if insert state is normal, then control the first two keys relay plug-in strip K1 and K2 and close a floodgate with the first contact and the second contact respectively.
A control method for Intelligent safety socket, comprising:
A) initialization: control the first two keys relay plug-in strip K1 and K2 and throw in the 3rd contact and the 4th contact respectively, the second two keys relay plug-in strip K5 and K6 disconnects;
B) start insert state monitoring/detection module and detect insert state;
C) if detect, insert state is abnormal, starts alarm unit and reports to the police;
D) steps A is returned after the time delay T1 period);
E) if insert state is normal, then control the second two keys relay plug-in strip K5 and K6 and close a floodgate with the 5th contact and the 6th contact respectively;
F) start impedance operator detection module and detect external load impedance characteristic and resistance value, and the impedance ranges [Z1, Z2] of the resistance value detected and built-in acquiescence is compared;
G) if the resistance value detected is less than Z1, then again detect external load impedance characteristic and resistance value after the time delay T2 period, if the resistance value again detected still is less than Z1, then judge external loading short circuit, start alarm unit to report to the police, and return described step 1) after the time delay T1 period;
H) if the resistance value detected is greater than Z2, then periodically start impedance operator detection module and detect external load impedance characteristic and resistance value, until the resistance value detected is when acquiescence impedance ranges [Z1, Z2] is interior, enter next step;
I) if the resistance value detected is in acquiescence impedance ranges [Z1, Z2], then preserve characteristic and the resistance value of load, the plug-in strip separating brake of the second two keys relay, and starting current and waveform detection module detect voltage waveform;
J controls the first two keys relay plug-in strip K1 and K2 according to external load characteristics and voltage waveform and closes a floodgate with the first contact and the second contact respectively.
Further, step J) also comprise afterwards:
A) phase current of starting current and the every circuitry phase of waveform detection module collection always;
B) external loading ruuning situation is judged according to the relation of the phase current of every circuitry phase;
If c) external loading operation exception, then control the first two keys relay plug-in strip K1 and K2 according to external load characteristics and voltage waveform and close a floodgate with the 3rd contact and the 4th contact respectively;
If d) insert state monitoring/detection module monitors insert state extremely, then control the first two keys relay plug-in strip K1 and K2 according to external load characteristics and voltage waveform and close a floodgate with the 3rd contact and the 4th contact respectively;
Turn back to described step B) once.
Further, the concrete grammar controlling the first two keys relay plug-in strip action according to external load characteristics and voltage waveform is:
If when external loading is inductive load, close a floodgate or separating brake at the crest place of voltage;
If external loading be resistive or capacitive load time, voltage over zero place close a floodgate or separating brake.
Further, follow described in and judge that the method for external loading ruuning situation comprises according to phase current:
If every phase current is zero, be then judged to be that external loading mechanical switch disconnects;
If L phase current and N phase current unequal, and difference is greater than i
1time, judge external load circuit electric leakage;
If L phase or N phase current are greater than threshold value i
2time, judge load overload operation;
If L phase current equals N phase current, and is not equal to zero, and is all less than threshold value i
2time, external loading normal operation.
The invention has the beneficial effects as follows: the present invention only just can close a floodgate when detecting that plug insert state is normal and load impedance characteristic meets setting energising, and can carry out Real-Time Monitoring to plug insert state, more safe and reliable; Carry out closing a floodgate and separating brake according to load impedance characteristic, eliminate electric arc and electric spark, ensure electricity consumption and personal safety, and reduce current noise, realize green power utilization; After abnormal conditions occur, self-inspection starts again, and when abnormal conditions remove, self-recoverage normal operating conditions, reaches self-recoverage object.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of Intelligent safety socket of the present invention.
Fig. 2 is the control method flow chart of Intelligent safety socket of the present invention.
Embodiment
Below in conjunction with concrete the drawings and specific embodiments, the present invention will be further described.
As shown in Figure 1, a kind of Intelligent safety socket, comprises the first two keys relay, the second two keys relay, insert state monitoring/detection module, impedance operator detection module, electric current and waveform detection module, microprocessor (MPU), alarm unit, wireless module and AC/DC module.
First two keys relay is dpdt relay, comprises coil Q1, plug-in strip K1 and K2, and first contact that be positioned at high-voltage alternating end corresponding respectively with plug-in strip K1 and K2 and the second contact, and is positioned at the 3rd contact and the 4th contact of low-voltage alternating-current end.Plug-in strip K1 and K2 is electrically connected with the N phase jack of socket and L phase jack respectively, and the first contact and the second contact are connected respectively to N phase and the L phase of power transmission line.Microprocessor is connected to coil Q1, by the power on/off of control signal Ctrl 1 control coil Q1, then controls the location status of plug-in strip K1 and K1.During initial condition, Ctrl 1 control coil Q1 current interruption, plug-in strip K1 and K2 closes a floodgate with the 3rd contact of low-voltage alternating-current end and the 4th contact respectively, when needs and high-voltage alternating end close a floodgate, microprocessor is by control signal Ctrl 1 control coil Q1 current lead-through, and then control plug-in strip K1 and K2 and low-pressure side separating brake, close a floodgate with the first contact of high-voltage alternating end and the second contact respectively simultaneously.
Second two keys relay comprises coil Q2, plug-in strip K5 and K6, and distinguish the 5th corresponding contact and the 6th contact with plug-in strip K5 and K6, microprocessor is connected to coil Q2, by control signal Ctrl 2, the power on/off of control coil Q2, controls the location status of plug-in strip K5 and K6 then.Plug-in strip K5 is connected with the 3rd contact electrical of the first two keys relay, and plug-in strip K6 is connected with the 4th contact electrical of the first two keys relay.5th contact and the 6th contact are connected to impedance operator detection module.During initial condition, control signal Ctrl 2 control coil Q2 current interruption, plug-in strip K5 and K6 and the 5th contact and the 6th contact separating brake; When microprocessor is by control signal Ctrl 2 control coil Q2 current lead-through, close a floodgate in plug-in strip K5 and K6 and the 5th contact and the 6th contact.
Insert state monitoring/detection module is physically connected to the jack of socket, receives the insert state detection that microprocessor-based control signal Ctrl 4 carries out plug.Concrete, each jack mouth is provided with safety screen, and each safety screen is connected with a sensitive switch or metal proximity Hall switch, when the inserted sheet of plug inserts jack, safety screen is extruded, thus touches the sensitive switch or metal proximity Hall switch that link with safety screen.Each jack inside is provided with the phosphor-copper shell fragment for being connected with plug slice, and the elastic deformation side of phosphor-copper shell fragment is connected with another sensitive switch or metal proximity Hall switch.After the inserted sheet of plug continues to go deep into jack inside, phosphor-copper shell fragment is squeezed generation deformation, thus forces the sensitive switch that links with phosphor-copper shell fragment or metal proximity Hall switch to trigger, and changes on off state.When the inserted sheet of plug fails to contact with phosphor-copper shell fragment completely, phosphor-copper shell fragment because of deformation not, sensitive switch or the metal proximity Hall switch of interlock just can not trigger change state.The sensitive switch that N phase jack safety screen can be linked or metal proximity Hall switch called after N (top), the sensitive switch of the phosphor-copper shell fragment interlock of N phase jack inside or Hall metal approach switch called after N(bottom), same naming rule name L phase has L (top) and L (bottom), when certain switch is touched, the level logic of this switch is designated as 1, be not touched level then logic be designated as 0.When detecting insert state, have in logic: N (top) & N(bottom) & L (top) & L (bottom), the i.e. level logic of the sensitive switch that links of the sensitive switch of two jack safety screens or the level logic of metal proximity Hall switch and phosphor-copper shell fragment or Hall metal approach switch and computing, when four switches are all touched, logic operation result is 1, testing result is that diplopore inserts well, and insert state is normal; If certain switch is not touched, then logic operation result is 0, and testing result is that insert state is abnormal, and as single hole inserts, diplopore half inserts, and single hole inserts good single hole and inserts abnormal etc.Operation result is sent to microprocessor by signal Sign7.
Impedance operator detection module is for detecting impedance operator and the resistance value of external loading.Detailed process is: control the first two keys relay plug-in strip K1 and K2 and throw the 3rd contact in low-voltage alternating-current end and the 4th contact respectively, second two keys relay plug-in strip K5 and K6 throws respectively in the 5th contact and the 6th contact, then starts impedance operator detection module by control signal Ctrl 3.
Electric current and waveform detection module are coupling-connected to N phase and the L phase of power transmission line by voltage transformer summation current transformer, are detected the voltage waveform of high-voltage alternating end by AD sampling from voltage transformer secondary side; Gather the phase current of each circuitry phase from Current Transformer Secondary side, and the signal collected is sent to microprocessor.
Alarm unit can adopt acoustic-optic alarm, and when plug insert state exception or load circuit exception, receive the signal Sign2 of microprocessor, send sound and light alarm, reminding user is fixed a breakdown in time.
The data such as abnormality alarming information and load impedance information are sent to mobile terminal device for the signal Sign3 receiving microprocessor by wireless module, and receive control terminal command parameter signal, and transfer to microprocessor by signal Sign 5.
AC/DC module is power module, provides DC power supply for giving the coil Q2 of the coil Q1 of the first two keys relay, the second two keys relay, insert state monitoring/detection module, impedance operator detection module, electric current and waveform detection module, microprocessor (MPU), alarm unit and wireless module.The input of AC/DC module is connected to N phase and the L phase of power transmission line, and output connects the power input of the first two keys relay, the second two keys relay, insert state monitoring/detection module, impedance operator detection module, electric current and waveforms detection mould, microprocessor, alarm unit and wireless module respectively.
The control procedure of Intelligent safety socket of the present invention is specific as follows:
1. initialization: time initial, jack output circuit is in off-state, and the first two keys relay plug-in strip K1 and K2 throws in the 3rd contact and the 4th contact respectively, and the second two keys relay plug-in strip K5 and K6 disconnects.
2. microprocessor starts insert state monitoring/detection module detection insert state.
3. if detect, insert state is abnormal, then start alarm unit and report to the police.Microprocessor (MPU) is according to jack insert state information Sign7 logic level 0, judge that insert state is abnormal, send abnormality alarming information to mobile terminal device, and start sound and light alarm, the first two keys relay state and the second two keys relay state remain unchanged.
4. return step 1 after the time delay T1 period.T1 can set, and user can get rid of the abnormality of plug according to sound and light alarm, and insert state monitoring/detection module continues to detect insert state, until insert state is normal after the delay.
5. if insert state is normal, then controls the second two keys relay plug-in strip K5 and K6 and close a floodgate with the 5th contact and the 6th contact respectively, keep insert state detection/monitoring modular to start, Real-Time Monitoring insert state.Be specially: remain 1 when microprocessor (MPU) receives insert state monitoring/detection module signal Sign7 logic state, when judging that jack insert state is normal, microprocessor (MPU) control signal Ctrl 2 control coil Q2 current path, second double-pole single-throw (D.P.S.T.) relay plug-in strip K5 and K6 is closed a floodgate with the 5th contact and the 6th contact respectively, makes the second double-pole single-throw (D.P.S.T.) relay form path with insertion external loading.
6. start impedance operator detection module and detect external load impedance characteristic and resistance value, and the impedance ranges [Z1, Z2] of the resistance value detected and built-in acquiescence respective impedance characteristic is compared.Concrete: microprocessor (MPU) exports control signal Ctrl 3 starting load impedance operator detection module: by low pressure power frequency generation module, exports power frequency low-voltage ac voltage, by AD sample circuit, gathers voltage current phase difference and electric current and voltage value.Known by the public: in pure resistor element circuit, voltage and electric current are always synchronous.The voltage at resistance two ends, current in phase position.On inductance, voltage is leading current 90 degree always; On the capacitor, voltage always lagging current 90 degree.The impedance operator of the external loading inserting jack can be derived accordingly, and calculate the power frequency impedance value of external loading.Testing result is sent to described microprocessor (MPU) by holding wire sign 1 by impedance operator detection module.Described microprocessor, according to testing result, selects the impedance ranges [Z1, Z2] of corresponding built-in acquiescence to compare.Above-mentioned impedance default scoping is concrete: the corresponding acquiescence impedance ranges of capacitive load, the corresponding acquiescence impedance ranges of inductive load, the corresponding impedance default scoping of resistive load.Characteristic and acquiescence impedance ranges all have preservation in the microprocessor, and can be preserved resistance value and the characteristic of amendment acquiescence by mobile terminal App, and can the corresponding load equipment title of remarks, such as fan, perception, 0.8 ohm.
If when 7. detecting that resistance value corresponding to impedance operator is less than Z1, control signal Ctrl 1 is constant, control the first two keys relay and low-voltage alternating-current end keeps "on" position, external load impedance characteristic and resistance value is again detected after the time delay T2 period, if the resistance value again detected still is less than Z1, then judge external loading short circuit, microprocessor (MPU) sends the abnormal acoustic-optic alarm of signal enabling by Sign 2, and microprocessor (MPU) sends signal sign 3 and sends abnormality warning information to mobile terminal device by wireless module simultaneously.Step 1 is returned again: user can remove the fault of short circuit in time according to the prompting of sound and light alarm after the time delay T1 period, systemic circulation is to step 1, restart detecting step, until load impedance value is in acquiescence impedance ranges, then normally start, recover normal operating condition, alarm is removed, and sends recovery normal information to terminal equipment.
If when the resistance value 8. detected is greater than Z2, assert that resistance value is infinitely great, then periodically start impedance operator detection module and detect external load impedance characteristic and resistance value, such as: the cycle can be set to 1 second, start 100 milliseconds, close 900 milliseconds.Until the resistance value detected is when acquiescence impedance ranges [Z1, Z2] is interior, enter next step.This step can the cancellation band drawback that has the equipment of mechanical switch cannot use after Abnormality remove.
If the resistance value 9. detected in acquiescence impedance ranges [Z1, Z2], is then preserved impedance operator and the resistance value of load, and by wireless module, this load characteristic and resistance value is sent to mobile terminal device.Starting current and waveform detection module detect the voltage waveform of the first two keys relay high-voltage alternating end simultaneously, and make the second two keys relay plug-in strip K5 and K6 separating brake.
10. control the first two keys relay plug-in strip K1 and K2 according to the external load characteristics of preserving and voltage waveform to close a floodgate with the first contact and the second contact respectively in suitable waveform position timely simultaneously.When the concrete load inserting jack is inductive load, close a floodgate at voltage crest place; Insert the load of jack be resistive load and capacitive load time, close a floodgate at voltage over zero place.Farthest can reduce electric arc like this to produce, keep the stabilization of power grids, ensure power consumption equipment and power customer's personal safety.
11. in running the phase current of starting current and the every circuitry phase of waveform detection module collection always, and transfer to microprocessor by live signal Sign 6.
12. microprocessors judge external loading ruuning situation according to the phase current of every circuitry phase.Concrete:
If every phase current is zero, be then judged to be that external loading mechanical switch disconnects;
If L phase current and N phase current unequal, and difference is greater than i
1time, (as i
1get 30mA), judge external load circuit electric leakage;
If L phase or N phase current are greater than threshold value i
2time, judge load overload operation;
If L phase current equals N phase current, and is not equal to zero, and is all less than threshold value i
2time, external loading normal operation.
13. if external loading operation exceptions, then control the first two keys relay plug-in strip K1 and K2 according to external load characteristics and voltage waveform and also close a floodgate with the 3rd contact and the 4th contact immediately with the first contact and the second contact separating brake respectively.Concrete: when the load of inserting jack is inductive load, at voltage crest punishment lock, the load of inserting jack be resistive load and capacitive load time, at voltage over zero punishment lock.
14. in running, and it is abnormal that any step monitors insert state, then control the first two keys relay plug-in strip K1 and K2 and the first contact and the second contact separating brake according to external load characteristics and voltage waveform and close a floodgate with the 3rd contact and the 4th contact.Concrete: when the load of inserting jack is inductive load, at voltage crest punishment lock, the load of inserting jack be resistive load and capacitive load time, at voltage over zero punishment lock.
Turn back to described step 2 once after 15. separating brakes, again detect insert state and load impedance value and impedance operator, detect that insert state is normal, load impedance in the scope of acquiescence, then recovers normal startup optimization state by step.
Claims (8)
1. an Intelligent safety socket, is characterized in that, comprises the first two keys relay, insert state monitoring/detection module, microprocessor and alarm unit; Described first two keys relay comprises coil Q1, plug-in strip K1 and K2, and distinguish the first corresponding contact and the second contact with plug-in strip K1 and K2, described microprocessor is connected to coil Q1 for control coil Q1 power on/off, plug-in strip K1 with K2 is connected with the N phase jack of socket and L phase jack respectively, and the first contact and the second contact are connected respectively to N phase and the L phase of power transmission line; Described insert state monitoring/detection module is connected to the jack of socket; Described microprocessor also connects insert state monitoring/detection module and alarm unit respectively.
2. Intelligent safety socket according to claim 1, is characterized in that, also comprises the second two keys relay, impedance operator detection module and electric current and waveform detection module; Described first two keys relay is dpdt relay, also comprises three contact corresponding respectively with plug-in strip K1 and K2 and the 4th contact; Described second two keys relay comprises coil Q2, plug-in strip K5 and K6, and distinguish the 5th corresponding contact and the 6th contact with plug-in strip K5 and K6, described microprocessor is connected to coil Q2 for control coil Q2 power on/off, plug-in strip K5 connects the 3rd contact, plug-in strip K6 connects the 4th contact, and the 5th contact and the 6th contact are connected to impedance operator detection module; Described electric current and waveform detection module are coupling-connected to N phase and the L phase of power transmission line; Described microprocessor is also connected respectively to impedance operator detection module and electric current and waveform detection module.
3. Intelligent safety socket according to claim 1, is characterized in that, also comprises wireless module, and the Signal transmissions end of described wireless module is connected to microprocessor, and power input is connected to power module.
4. a control method for Intelligent safety socket as claimed in claim 1, is characterized in that, comprising:
1) initialization: control the first two keys relay plug-in strip K1 and K2 and be off state;
2) start insert state monitoring/detection module and detect insert state;
3) if detect, insert state is abnormal, starts alarm unit and reports to the police;
4) step 1) is returned after the time delay T1 period;
5) if insert state is normal, then control the first two keys relay plug-in strip K1 and K2 and close a floodgate with the first contact and the second contact respectively.
5. a control method for Intelligent safety socket as claimed in claim 2, is characterized in that, comprising:
A) initialization: control the first two keys relay plug-in strip K1 and K2 and throw in the 3rd contact and the 4th contact respectively, the second two keys relay plug-in strip K5 and K6 disconnects;
B) start insert state monitoring/detection module and detect insert state;
C) if detect, insert state is abnormal, starts alarm unit and reports to the police;
D) steps A is returned after the time delay T1 period);
E) if insert state is normal, then control the second two keys relay plug-in strip K5 and K6 and close a floodgate with the 5th contact and the 6th contact respectively;
F) start impedance operator detection module and detect external load impedance characteristic and resistance value, and the impedance ranges [Z1, Z2] of the resistance value detected and built-in acquiescence is compared;
G) if the resistance value detected is less than Z1, then again detect external load impedance characteristic and resistance value after the time delay T2 period, if the resistance value again detected still is less than Z1, then judge external loading short circuit, start alarm unit to report to the police, and return described step 1) after the time delay T1 period;
H) if the resistance value detected is greater than Z2, then periodically start impedance operator detection module and detect external load impedance characteristic and resistance value, until the resistance value detected is when acquiescence impedance ranges [Z1, Z2] is interior, enter next step;
I) if the resistance value detected is in acquiescence impedance ranges [Z1, Z2], then preserve characteristic and the resistance value of load, the plug-in strip separating brake of the second two keys relay, and starting current and waveform detection module detect voltage waveform;
J) control the first two keys relay plug-in strip K1 and K2 according to external load characteristics and voltage waveform to close a floodgate with the first contact and the second contact respectively.
6. the control method of Intelligent safety socket according to claim 5, is characterized in that, described step J) also comprise afterwards:
A) phase current of starting current and the every circuitry phase of waveform detection module collection always;
B) external loading ruuning situation is judged according to the relation of the phase current of every circuitry phase;
If c) external loading operation exception, then control the first two keys relay plug-in strip K1 and K2 according to external load characteristics and voltage waveform and close a floodgate with the 3rd contact and the 4th contact respectively;
If d) insert state monitoring/detection module monitors insert state extremely, then control the first two keys relay plug-in strip K1 and K2 according to external load characteristics and voltage waveform and close a floodgate with the 3rd contact and the 4th contact respectively;
E) described step B is turned back to) once.
7. the control method of the Intelligent safety socket according to claim 5 or 6, is characterized in that, the concrete grammar controlling the first two keys relay plug-in strip action according to external load characteristics and voltage waveform is:
If when external loading is inductive load, close a floodgate or separating brake at the crest place of voltage;
If external loading be resistive or capacitive load time, voltage over zero place close a floodgate or separating brake.
8. the control method of Intelligent safety socket according to claim 6, is characterized in that, described in follow and judge that the method for external loading ruuning situation comprises according to phase current:
If every phase current is zero, be then judged to be that external loading mechanical switch disconnects;
If L phase current and N phase current unequal, and difference is greater than i
1time, judge external load circuit electric leakage;
If L phase or N phase current are greater than threshold value i
2time, judge load overload operation;
If L phase current equals N phase current, and is not equal to zero, and is all less than threshold value i
2time, external loading normal operation.
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| CN201510390505.8A CN104966955B (en) | 2015-07-03 | 2015-07-03 | A kind of Intelligent safety socket and its control method |
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| CN110297453A (en) * | 2019-07-17 | 2019-10-01 | 湖南联智桥隧技术有限公司 | Intelligent-induction controls socket and intelligent control method |
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| CN109980454B (en) * | 2017-12-27 | 2020-12-29 | 帕西·西姆公司 | Intelligent wiring device |
| CN109980454A (en) * | 2017-12-27 | 2019-07-05 | 帕西·西姆公司 | Intelligent termination |
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| CN108807076A (en) * | 2018-05-07 | 2018-11-13 | 深圳拓邦股份有限公司 | A kind of means of relay controlling, control panel, wall-hung boiler and water heater |
| CN108807076B (en) * | 2018-05-07 | 2020-06-23 | 深圳拓邦股份有限公司 | Relay control method, control panel, wall-mounted boiler and water heater |
| CN109787598A (en) * | 2018-12-21 | 2019-05-21 | 珠海格力电器股份有限公司 | A kind of plug control device, electronic equipment and its plug control method |
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| CN110297453B (en) * | 2019-07-17 | 2021-04-27 | 湖南联智科技股份有限公司 | Intelligent induction control socket and intelligent control method |
| CN113359962A (en) * | 2021-04-25 | 2021-09-07 | 山东英信计算机技术有限公司 | Fan hot-plug method, system, equipment and medium |
| CN113359962B (en) * | 2021-04-25 | 2022-08-19 | 山东英信计算机技术有限公司 | Fan hot plug method, system, equipment and medium |
| TWI805339B (en) * | 2022-04-26 | 2023-06-11 | 麻新電子股份有限公司 | Power extension cord |
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