Summary of the invention
For solving the problem and blemish of above-mentioned middle existence, the invention provides a kind of elevator intelligent power-saving method and device, core is based on a kind of intelligent decision and control technology, mainly towards long readiness for action, have that implementation method is simple, energy-saving effect obviously, the feature such as high reliability, intelligent, long working life.Described technical scheme is as follows:
A kind of elevator intelligent power-saving method, comprising:
According to disconnection work-hours, intelligent decision and the control technology set, and by detecting the variation of elevator main circuit current or power circuit power, judge that whether elevator is in readiness for action;
, trigger actuating unit and cut off elevator main circuit current in readiness for action and extend after certain hour at elevator, realize elevator intelligence in the time of readiness for action and cut off the function of power supply.
A kind of Intelligent electricity-saving device for elevator, comprising:
Main detection module, for detection of single phase power value and three phase power average or single-phase power consumption number and the three-phase power consumption summation of elevator;
Intelligent decision and control module, in the time arriving the disconnection work-hours of setting, the single phase power value and three phase power average or single-phase power consumption number and the three-phase power consumption summation that detect according to main detection module, whether automatic decision elevator is in readiness for action;
Actuator module, for cutting off or recovery elevator power supply source;
Human-computer interaction module, for selecting whether to need to take elevator intelligent electricity-saving function.
The beneficial effect of technical scheme provided by the invention is:
1, can realize the function of elevator stand-by energy-saving, the abundant and perfect technology in elevator energy-saving field, has filled up the blank in this field of elevator stand-by energy-saving technology.
2, have higher intelligently, adopt the current signal based on elevator standby feature state, by the feature of identification elevator readiness for action current signal, and then judge that whether elevator is in readiness for action.
3, method is simple and feasible, adopts the construction module based on relay controller, can comparatively easyly realize stand-by energy-saving function.
4, there is higher safety performance; take into full account the particularity of elevator as special equipment; take redundancy detection guard method; even if make the in the situation that of failure of apparatus; also just lose intelligent energy-saving function; but can not affect the normal operation of elevator, this measure has improved the safety performance of invention.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail:
Embodiment 1
A kind of elevator intelligent power-saving method of the present invention, the method comprises: according to disconnection work-hours, intelligent decision and the control technology set, and by detecting the variation of elevator main circuit current or power circuit power, judge that whether elevator is in readiness for action; , trigger actuating unit and cut off elevator main circuit current in readiness for action and extend after certain hour at elevator, realize elevator intelligence in the time of readiness for action and cut off the function of power supply.Above-mentioned intelligent decision and control technology are in the time arriving the disconnection work-hours of setting elevator, according to the threshold value of setting, compare with the current value or the magnitude of power that detect, the relatively detected value in sense cycle and the size of threshold value, and automatically judge that whether elevator is in readiness for action, output signal drives actuating unit.
Technique scheme specifically comprises the following steps as shown in Figure 1:
Step 101 is set and is disconnected work-hours and reset work-hours, in the time arriving the disconnection work-hours of setting, continuously elevator main circuit current or power is detected in sense cycle by main detection module, obtains single-phase detected value and three-phase average.
Step 102 is by single-phase detected value and three-phase average and the threshold that characterizes readiness for action.
Step 103 judges that whether elevator is in readiness for action;
In sense cycle, whether be less than or equal to the threshold value of sign state according to all detected values, if be less than or equal to after this threshold value, for guaranteeing the safe and reliable of elevator work, judge that more whether elevator is in readiness for action, if elevator is in readiness for action, time delay also keeps the continuous detecting some time.
Step 104 judges that whether elevator is in unmanned use state;
If in time delay and keep the detected value in the continuous detecting some time to be still less than or equal to threshold value, judge that whether elevator is in unmanned use state, if in unmanned use state, perform step step 105.
Step 105 is cut off elevator main circuit current, realizes elevator intelligence in the time of long-term readiness for action and cuts off the function of power supply;
Above-mentionedly send signal by intelligent decision and control module, trigger actuator module and cut off elevator main circuit current.
When step 106 reaches the reset work-hours of setting, recover elevator power circuit closure;
Send signal by intelligent decision and control module, trigger actuator module and recover elevator power circuit closure.
Said method lost efficacy in order to prevent elevator intelligent economize on electricity; first be the accuracy that guarantees timer counter with plesichronous counting machine; next is, in intelligent decision and control module, security protection module is set; in order to detect actuating unit contact on off mode; compare current status simultaneously; if judge that Intelligent electricity-saving device for elevator lost efficacy, cancel the intelligence of intelligent decision and control module and cut off the function of power supply.Meanwhile, for convenient operation, condition selecting module is set in human-computer interaction module, in the time not needing intelligent energy-saving function, can cancels the intelligence of intelligent electric-saving device by this switch and cut off the function of elevator power supply.
Said method is the elevator power-saving method based on intelligent decision and control principle, in principle, not only embodies novelty but also embody feasibility.On method of inspection, detected parameters is taked three-phase average and single channel observed reading simultaneously and the method for use, is conducive to prevent single-phase measurement or the three-phase measurement unreliability of existence respectively, improves the degree of reliability detecting.In intelligent decision method, the intelligent decision method of elevator readiness for action and the threshold value of corresponding sign readiness for action all derive from actual measurement data, contribute to utilize comparatively simple way to realize the function of intelligent decision.Aspect control policy, judge that elevator cuts off the power supply of elevator after long-term readiness for action again, is conducive to ensure the safe in operation of elevator.Above technical scheme has novelty and the feasibility of principle on elevator power-saving method, makes that the present invention has that safety rate is high, implementation method is simple, energy-saving effect is obvious, the feature such as high reliability, intelligent, long working life.
Embodiment 2
As shown in Figures 2 and 3, the present embodiment provides the principle of work of a kind of Intelligent electricity-saving device for elevator and this device, and described Intelligent electricity-saving device for elevator is arranged between elevator main switch and control housing.This device comprises main detection module 1, intelligent decision and control module 2, actuator module 3 and human-computer interaction module 4, and wherein, main detection module 1 is made up of three front end sensing heads 5.Front end sensing head 5 adopts current transformer, and be serially connected on three phase circuit, in order to detect the electric current of elevator three phase circuit 8, the current signal of detection is converted to voltage signal by main detection module, and feed back to the determination module 9 in follow-up intelligent decision and control module 2.The position that front end sensing head 5 is connected in series is before the actuator module 3 along direction of current.
Intelligent decision and control module 2 detect contact 13 by determination module 9, security protection module 10, control module 11, dual timer module 12 and safety guard-safeguard and form.The voltage signal that determination module 9 feeds back for receiving main detection module 1, and by inner decision circuit, the current value detecting and the threshold value of setting are contrasted to judgement, judge that whether elevator is in readiness for action.Security protection module 10 and safety guard-safeguard detect contact 13 by the on off mode of the main contact 15 of detection actuator module 3; the current conditions that more main detection module 1 feeds back simultaneously; whether normally work for detection of intelligent electric-saving device, feed back corresponding signal to control module 11.Plesichronous module utilizes two to overlap independently timer conter, and timing function is accurately provided.Control module 11 is according to the signal of determination module 9, plesichronous module 12 and security protection module 10, during in readiness for action, outputs signal to actuator module 3 at Intelligent electricity-saving device for elevator in normal operation and elevator.At Intelligent electricity-saving device for elevator during in abnormal running, output signal is the condition selecting position zero clearing in module, drives the actuator module 3 power supply initial condition that restores electricity, and cancels intelligence and cut off the function of power supply.
Actuator module 3 comprises three main contacts 15, relay controller 17 and auxiliary reset mechanism, and wherein three main contacts 15 are serially connected on elevator three phase circuit, adopts normally closed contact, and relay controller 17 adopts electromagnetic relay pattern.In the time that control module 11 outputs signal to relay controller 17, relay controller 17 is inhaled merga pass main contact 15 and is disconnected elevator three phase circuit.Auxiliary reset mechanism is for hand reset elevator intelligent electric-saving device.
Human-computer interaction module 4 comprises condition selecting module 18, timing setting module 19, time showing module 20, on off mode display lamp 21, auxiliary reset mechanism 22.Whether condition selecting button 18 needs intelligent energy-saving function for arranging, timing selects button 19 for the time of Intelligent electricity-saving device for elevator action is set, time display lamp 20 is for showing the timing of setting, on off mode display lamp 21 is for showing the on off mode of current Intelligent electricity-saving device for elevator, auxiliary reset mechanism 22 is for during in off-state, manually recovering the closure state of actuator module main contact 15 at main contact 15 by mechanical device.
As shown in Figure 4, Intelligent electricity-saving device for elevator program circuit.This flow process comprises the following steps:
Step 401 is initialization elevator manually, and sets initiation parameter.
Step 402 judges whether Intelligent electricity-saving device for elevator interrupts;
If Intelligent electricity-saving device for elevator does not interrupt, execution step 403, otherwise stop.
Step 403 reads and sets initial timing parameter.
Step 404 judges whether Intelligent electricity-saving device for elevator reaches timing turnoff time;
If when Intelligent electricity-saving device for elevator reaches the timing turnoff time of setting, execution step 405, otherwise return to step 403.
Step 405 detects elevator mode of operation.
Step 406 judges that whether elevator is in readiness for action;
If elevator, in readiness for action, performs step 407, otherwise returns to step 405.
The coil of step 407 relay controller obtains electric, and disconnects elevator three phase circuit by main contact, thereby power supply is disconnected.
Step 408 determines whether the time of the timing reset that reaches setting;
If reach the timing reset time of setting, execution step 409, otherwise return to step 407.
The coil losing electricity of step 409 relay controller disconnects, and main contact recovers the closure state of elevator three phase circuit.
Elevator intelligent power-saving method described in above-mentioned two embodiment and device adopt current signal based on elevator standby feature state, have safety, accurately, reliable, low, the intelligent height of cost, be convenient to the feature of installation and maintenance.
The above; only for the preferably specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.