CN103010889A - Detection and alarming device of abnormal opening of hoistway door and realization method - Google Patents
Detection and alarming device of abnormal opening of hoistway door and realization method Download PDFInfo
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- CN103010889A CN103010889A CN2012105586763A CN201210558676A CN103010889A CN 103010889 A CN103010889 A CN 103010889A CN 2012105586763 A CN2012105586763 A CN 2012105586763A CN 201210558676 A CN201210558676 A CN 201210558676A CN 103010889 A CN103010889 A CN 103010889A
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Abstract
The invention relates to the technical field of an elevator and discloses a detection and alarming device of abnormal opening of a hoistway door, comprising a power supply, a control unit, first switches, second switches, and alarms, wherein the first switches and the second switches are arranged on all floors and the alarms are arranged on all the floors; after the first switches and the second switches of all the floors are connected in parallel, n parallel circuits are formed; a serial circuit is formed by the n parallel circuits; the control unit comprises a potential detection circuit and a high potential output circuit; and when the potential detection circuit detects that when an nth input end is a low potential, a high-potential output circuit inputs a high potential to an nth parallel circuit and supplies power to the alarm of the nth floor to enable the alarm to give an alarm. The invention further discloses a realization method of the detection and alarming device, which can effectively detect all the abnormally-opened hoistway doors and sends out an effective alarming measure, so as to effectively detect and alarm the abnormal movement hoistway door when an elevator main control board has a floor identification error.
Description
Technical field
The present invention relates to the cage lifter technical field, particularly detection alarm device and the implementation method unusually opened of a kind of hoistway door.
Background technology
Vertical operation elevator is as extraordinary transportation device, and its Operation safety and passenger's safety is closely bound up, and China's GB and various countries' elevator safety standard all explicitly call for elevator cage door, Room door lock are sealed in safety return circuit, occurs to avoid shearing harm.Yet a large amount of the generation artificially opened Room door and the unexpected accident that crashes into hoistway in recent years, causes the tragedy of personal injury constantly to occur.For this reason, detection alarm and the prompting technology that a lot of non-leveling zones Room door accident is opened appears in the elevator industry.
Such as Chinese patent when opening " detecting device that a kind of hoistway door the is improper " (patent No.: 01217409.2) announced a kind of safety detection device.This device is at patent " detecting device and method of inspection when non-lift car place layer door is opened " (application number: on the basis 00112131.6), increased by three lead-in wire magnetic control change-over swith CKZ in the door pocket position, to realize the judgement to the floor position of opened Room door, to realize sending warning at this layer.Its implementation is, utilizes on the door of the Room in parallelly with two magnetic switch arranging in the hoistway, and when elevator during at this layer, CK adhesive, and switch CKZ is not reported to the police by short circuit; When elevator during not at this layer, CK and CKZ disconnect, and the lead-in wire of CKZ also has output, can judge elevator not at this layer and layer door opened unusually, the warning device action at this layer place, and the prompting personnel approach.But there is following problem in it: 1) though magnetic switch and permanent magnet all can move in certain identification range, but at the every one deck of hoistway a switch only is installed, and the installation site is fixedly the time, for the elevator that possesses the advance door opening function, the also not adhesive of the switch of hoistway, and Room door is opened, causes flase alarm; When elevator possessed story-leveling function again, hoistway door was opened, and car can be because of the passenger shift position of coming in and going out, and it is very high that two magnetic switch move inconsistent possibility, therefore that this mode practical operation is got up is unreliable.2) this device can't record the information that Room door is opened unusually, opening the door to report to the police after recovering when accident disappears, can not communicate by letter with apparatus for controlling elevator, potential safety hazard may or existence, also be unfavorable for the repair and maintenance personnel to malfunction elimination.
Chinese patent " safety detection device of door of elevator waiting hall and method of inspection thereof " (publication number: CN101264839A) announced the improper device that opens the door of a kind of detection layers door for another example, it all is equipped with the stop signal processor unit that can process serial signal at each floor, whether the mechanical switch detection layers door that utilizes layer door place to install is opened, and imports the layer door status signal of opening into electric life controller in the mode of serial communication.The interior exclusive program of electric life controller, with stop signal and elevator car position or the relevant information contrast of opening the door, draw and whether belong to non-this landing stop of car, and layer door opened unusually, can improve elevator safety by actv., utilize door district's identification signal of elevator self, just avoided advance door opening or again during flat bed, two groups of identification delay and flase alarms that pure mechanical switch easily causes.The method has the following disadvantages: 1) rely on electric life controller fully, obtain car position and judge, and at elevator when car is slipped in outage, tend to cause that floor and actual floor are not inconsistent phenomenon in the electric life controller, at this moment, there is very big potential safety hazard in this device; 2) when elevator power failure or maintenance outage, this device also is to play a role, and this moment, Room door was that the probability of opening is very large by the people, also very easily had an accident; 3) this invention is not described in judgement Room door and unusually opens rear concrete alarming method, just at the elevator internal record, can't play the beyond this point effect of this Room door of caution personnel; 4) this invention requires at every one deck a stop signal processor unit that is comprised of CPU, serial communication controller etc. at least to be set all, and this will increase cost greatly.
(application publication number: CN102085990 A) announced a kind of new Room door and unusually opened detection and alarm method, its utilization is installed in Room door infradred sensor, car infrared pickoff and outside output processing circuit, central process unit, floor address decoding circuitry, less radio-frequency transmission circuit, serial communication interface circuit and warning driving circuit and forms Chinese patent " Intelligent warning system for abnormal opening of hoistway door and safety detection method thereof " for another example.Implementation is, whether Room door infradred sensor detects hoistway door and opens, whether the car infrared pickoff detects car at this floor, when car not at this floor and Room door when opening, after its central process unit is judged, send signal by wireless radio frequency circuit or serial circuit, and drive warning circuit, can realize when Room door is opened unusually, and alarm and export the signal of place floor.Also there is following deficiency in this invention: 1) this patent requires at every one deck Room door infradred sensor and car identification sensor to be set all, and cost is very high, and simultaneously Installation and Debugging difficulty is higher; 2) use for a long time infradred sensor as can be known, it easily is subject to, and visible light disturbs, Room infradred sensor outdoors especially, and this patent is not described the infrared pickoff setting position, if identify the unlatching of Room door, blocking sensor in the time of also will inevitably being subject to the passenger and passing in and out; The car infrared pickoff is also easily hidden by the hoistway dust because being arranged on identification car position in the hoistway, and this mode is prone to erroneous judgement; 3) when elevator again when flat bed and advance door opening, this device also can't be avoided two infrared pickoffs action inconsistence problems, and flase alarm easily occurs.
Summary of the invention
In order to solve the problems of the technologies described above, the first purpose of the present invention provides the detection alarm device that a kind of hoistway door is opened unusually, judges whether abnormal start-up of hoistway door by this device, guarantees elevator safety.
The second purpose of the present invention provides the detection alarm implementation method that a kind of hoistway door is opened unusually, by the detection alarm of this method realization to elevator.
In order to realize the first purpose, the technical scheme that the present invention takes is:
The detection alarm device that a kind of hoistway door is opened unusually, it is characterized in that, comprise power supply, control unit, be arranged on the first switch and the second switch of each floor, be arranged on the annunciator of each floor, the definition floor is respectively the 1st floor from top to bottom or from top to bottom, the 2nd floor ... the n floor, closure when described first switch of each floor cuts out fully at this floor Room door, floor Room door is non-disconnects when closing fully at this, the described second switch of each floor is closed when car is positioned at this floor level position, when leaving this floor level position, car disconnects, form n circuit parallel after the first switch of each floor and the second switch parallel connection, the first end of n circuit parallel arranges a high potential, the second end of n circuit parallel connects the first end of n-1 circuit parallel, the second end of n-1 circuit parallel connects the first end of n-2 circuit parallel, tire out successively and push away, until connecting the first end of the 1st circuit parallel, the second end of the 2nd circuit parallel forms a circuit series, the second end of each circuit parallel is electrically connected to n input end of described control unit, described control unit comprises potential detecting circuit and high potential output circuit, described potential detecting circuit detects the current potential of n input end, when n input end is active potential, described high potential output circuit is given the second end input high potential of described n circuit parallel, and make described alarm equipment alarm for the annunciator power supply of n floor, the current potential of described potential detecting circuit n-1 input end of detection in the same manner is until the 1st circuit parallel.
Further, described control unit comprises elevator main control board, described elevator main control board identifies the floor information of car, described potential detecting circuit detects the current potential of n input end, when position that n input end is active potential and car during not at described n floor, described high potential output circuit is given the second end input high potential of described n circuit parallel, and make described alarm equipment alarm for the annunciator input high potential of n floor, when the position of n input end active potential and car is positioned at described n floor and n floor advance door opening signal or little flat signal is arranged, described high potential output circuit is given the second end input high potential of described n circuit parallel, and input active potential for the annunciator of n floor, the current potential of described potential detecting circuit n-1 input end of detection in the same manner is until the 1st circuit parallel.
Further, described the first switch is the touching switch that is arranged on door place, the described Room, and described second switch is to be installed in the magnetic switch at each floor lading door dill place and the permanent magnet that installs at the magnetic switch place of installing corresponding to lading door dill on car sill.
Further, the power supply of described detection alarm device is for to be made of rechargeable battery and external AC power supply, when external AC power supply is arranged, powered by external AC power supply, source of AC is given described rechargeable battery charging, when not having external AC power supply, by rechargeable battery powered.
Further, described annunciator is buzzer phone and/or warning light-emitting device.
Further, described high potential is 24V, and described active potential is 0V.
In order to realize the second purpose, the technical scheme that the present invention takes is:
The detection alarm implementation method of the detection alarm device that a kind of above-mentioned hoistway door is opened unusually is characterized in that, comprises the steps:
The first step: whether the Room door of judging the n floor abnormal start-up, then enters in this way second step, as otherwise entered for the 7th step;
Second step: judge whether elevator has the normal operation signal, if any then entering for the 3rd step, then entered for the 6th step such as nothing;
The 3rd step: judge that the current floor that unusually opens the door is whether consistent with the floor that elevator main control board is identified, then entered for the 4th step in this way, as otherwise entered for the 6th step;
Whether the 4th step: detecting has advance door opening or fine motion flat bed signal, if any then entering for the 5th step, then enters for the 6th step such as nothing;
The 5th step: make this floor circuit parallel the second end for high potential, give the annunciator input active potential of this floor;
The 6th step: make this floor circuit parallel the second end for high potential, give the annunciator input high potential of this floor;
The 7th step: make the value of number of floor levels n subtract 1, repeat above-mentioned steps, until finish the judgement of the first floor;
The 8th step: the reset detection warning device, make the each point of circuit series and the annunciator of each floor be active potential, repeat above-mentioned steps.
Further, in described the 6th step, comprise the next detection to this floor of shielding, and the diagnostic code of this floor is passed to the step of elevator main control board.
Further, described elevator main control board continues high potential for described annunciator, makes described annunciator continue to report to the police, and described time length is regularly realized by timer.
Further, the timing of described timer is 30S.
Further, described high potential is 24V, and described active potential is 0V.
The invention has the beneficial effects as follows:
1, effectively detects the Room door that all are opened unusually, and send the measure of effectively reporting to the police, still can actv. when floor identification error situation appears in elevator main control board anomalous behavior Room door is detected and report to the police.When elevator is in fine motion flat bed or advance door opening state, may make magnetic switch effectively not closed, this device is also made corresponding judgement and false alarm can not occurred.
2, can pass to elevator main control board to failure message when breaking down, allow elevator main control board show corresponding failure code, convenient debugging maintainer carries out the investigation of fault floor.
3, when power down mode, still can keep detection and warning function, and record trouble information, after restoring electricity, elevator again failure message is sent to elevator main control board.
Description of drawings
Accompanying drawing 1 is circuit module schematic diagram of the present invention;
Accompanying drawing 2 is method flow diagram of the present invention;
Accompanying drawing 3 is Interruption self check diagram of circuit.
Label among the figure is:
J1 ... Jn. the first switch; G1 ... Gn. second switch;
A1 ... an. the second end of circuit parallel; BJ1 ... BJn. annunciator;
I(1) ... I(n). input port; O1 (1) ... O1(n). delivery port;
O2 (1) ... O2(n). delivery port; S01-S08. flow chart step.
The specific embodiment
The detection alarm device of hoistway door of the present invention being opened unusually below in conjunction with accompanying drawing and the specific embodiment of implementation method elaborate.
Referring to accompanying drawing 1, the floor of definition lift-mounting be respectively from top to bottom or from top to bottom the 1st floor, the 2nd floor ..., the n floor, at door place, the Room of each floor the first switch J1 is installed ... Jn, the first switch is the touching switch, the touching switch is by Room gate control, under the door buttoned-up status of the Room, should touch switch closure, under the non-complete closure state of Room door, should disconnect by the touching switch, open if just be regarded as in the situation that namely Room Men Zaifei closes fully.Second switch G1 is installed at lading door dill place at each floor ... Gn, second switch is to be installed in the magnetic switch at each floor lading door dill place and the permanent magnet that installs at the magnetic switch place of installing corresponding to lading door dill on car sill, permanent magnet can be so that the magnetic switch at lading door dill place be effectively closed when Elevator landing, and elevator magnetic switch when non-flat layer region effectively disconnects.At each floor annunciator BJ1 is installed also ... BJn, annunciator are combined aural and visual alarm, optional buzzer phone or the luminescent device of band caution look and both combinations.This device is controlled by the control unit that is installed in elevator(lift) machine room, control unit comprises a CPU, master control board, serial communication circuit, IO interface circuit etc., the IO interface circuit comprises 24V Isolation input circuit and 24V spacing output circuit, and the signal that the IO interface circuit transmits elevator is sent to the input end of control unit.Form n circuit parallel after the first switch of each floor and the second switch parallel connection, the first end of n circuit parallel arranges a high potential, apply the 24V positive voltage for the first end of n circuit parallel here, the second end an of n circuit parallel connects the first end of n-1 circuit parallel, the second end an-1 of n-1 circuit parallel connects the first end of n-2 circuit parallel, tire out successively and push away, until connecting the first end of the 1st circuit parallel, the second end a2 of the 2nd circuit parallel forms a circuit series, the second end a1 of each circuit parallel ... an is connected to n the input end I (1) of control unit by the IO interface circuit ... I (n).Described control unit comprises elevator main control board, described elevator main control board identifies the floor information of car, control unit also comprises potential detecting circuit and high potential output circuit, potential detecting circuit detects the current potential of n input end, when position that n input end is active potential and car during not at described n floor, described high potential output circuit is given the second end input high potential of described n circuit parallel, and make described alarm equipment alarm for the annunciator input high potential of n floor, when the position of n input end active potential and car is positioned at described n floor and n floor advance door opening signal or little flat signal is arranged, described high potential output circuit is given the second end input high potential of described n circuit parallel, and input active potential for the annunciator of n floor, the current potential of described potential detecting circuit n-1 input end of detection in the same manner is until the 1st circuit parallel.
Serial communication circuit can be realized the communication of CPU and elevator main control board, the floor position signal that obtains elevator of cpu cycle property, fine motion flat bed signal and pre-enabling signal, when Room door occurring and unusually opening the door, CPU sends to elevator main control board to corresponding failure message by the current mouth of serial.The power module that this device is made of chargeable battery and external source of AC, described supply module can be when having external source, and with the external source power supply, this moment, rechargeable battery was in floating charge state, when not having external source, used powered battery.
Referring to accompanying drawing 2, the implementation method of detection alarm may further comprise the steps:
The first step: whether the Room door of judging the n floor abnormal start-up, namely judges input port I(n)=0V? (in the accompanying drawing 2 S01 step) then enters second step in this way, as otherwise entered for the 7th step.
Second step: judge that whether elevator has normal operation signal (S02 step in the accompanying drawing 2), if any then entering for the 3rd step, then enters for the 6th step such as nothing.
The 3rd step: judge the current floor that unusually opens the door whether consistent with the floor of elevator main control board identification (S03 goes on foot in the accompanying drawing 2), then entered for the 4th step in this way, as otherwise entered for the 6th step.
The 4th step: whether have advance door opening or fine motion flat bed signal (in accompanying drawing 2 S04 step), if any then entering for the 5th step, then entered for the 6th step such as nothing if detecting.
The 5th step: make this floor circuit parallel the second end for high potential, give the annunciator input active potential (S05 step in the accompanying drawing 2) of this floor.
The 6th step: make this floor circuit parallel the second end for high potential, give the annunciator input high potential of this floor, simultaneously shielding next time is to the detection of this floor, and the diagnostic code of this floor is passed to elevator main control board (S06 step in the accompanying drawing 2).
The 7th step: make the value of number of floor levels n subtract 1, repeat above-mentioned steps, until finish the judgement (S07 step in the accompanying drawing 2) of the first floor.
The 8th step: the reset detection warning device, make the each point of circuit series and the annunciator of each floor be active potential, repeat above-mentioned steps (S08 step in the accompanying drawing 2).
After warning device resets, the alerting signal of warning floor can be interrupted being continued until the alarm detection of next round, here by a given sufficiently long time of timer, make the detection alarm system continue high potential to annunciator, make annunciator continue to report to the police, remedy blank during this period of time.This time length is set to 30S and is advisable.
Embodiments of the present invention below at large are described, the detection alarm device that hoistway door of the present invention is opened unusually comprises the touching switch that is installed in each door place, the floor Room, described touching switch is by Room gate control, under the door buttoned-up status of the Room, should touch switch closure, should disconnect by the touching switch under the non-complete closure state of Room door; Be installed in the magnetic switch at each floor lading door dill place, described magnetic switch and the touching switch in parallel that is installed in door place, the Room, this switch is in off-state, adhesive when permanent magnet is close when close without permanent magnet; The two ends of certain layer in parallel magnetic switch, touching switch are connected together by the wire switch series in parallel with other floors such as the method, and by one road direct supply power supplying from one direction on attic two switches, parallel connection two switches of one deck of the end of another termination.The position of magnetic switch is installed corresponding to lading door dill at the car sill of elevator, a permanent magnet is installed, described permanent magnet can make the magnetic switch at lading door dill place effectively closed when Elevator landing, and elevator magnetic switch when non-flat layer region effectively disconnects.Detection alarm circuit and device comprise a master cpu, serial communication module, IO interface circuit.Described IO interface circuit comprises one group of Isolation input circuit of vdc (such as DC 24V) and two groups of spacing output circuits of multiport, each port of described input circuit is corresponding one by one with the parallel switch of every group on each floor, can gather the electric potential signal of the input port of corresponding stop, if this layer is a layer, if this stop input port I(a) current potential is 24V, then make corresponding floor variable floor(a) be set to 0, if I(a) current potential is 0V, corresponding floor variable floor(a then) is set to current floor value.All input port signals of the collection of cpu cycle property, one group of output circuit O1(a) the input port I(a of the corresponding stop of a termination), another group delivery port O2(a) driving element taking alarm; Output circuit port and each floor position also are one to one, and delivery port O1, O2 are by software control output 0V or 24V, the other end ground connection of described alarm appliance actuator.Described serial communication module, can realize the communication of CPU and elevator main control board, the elevator normal operation signal that obtains elevator of cpu cycle property, the floor position signal, fine motion flat bed signal and pre-enabling signal, when Room door occurring and unusually opening the door, CPU sends to elevator main control board to corresponding failure message by the current mouth of serial.Be installed in the alarm appliance actuator of each floor, described alarm appliance can be buzzer phone or the luminescent device of band caution look and both combinations.By the supply module that chargeable storage and external source of AC consist of, described supply module can realize that alternating-current voltage/AC voltage is converted into corresponding vdc, and when external source was arranged, with the external source power supply, rechargeable battery was in floating charge state; When external power cut-off, use storage battery power supply.Install built-in memory device, be used for recording the information such as number of times that time that Room door opened unusually and this floor layer occur and open, in order to prevent elevator when outage, failure message also can keep, and after elevator powers on again, export to electric life controller, remind the repair and maintenance personnel to reaffirm that this layer is safe, then remove alarm message by elevator control cabinet or the upper hand reset button that arranges of this device.
The detection alarm implementation method that hoistway door of the present invention is opened unusually comprises the steps, at first detect top layer whether the Room door of unusually being opened is arranged, its method is if I (n) input current potential is that 24V(voltage is example value), then there is not the Room door that unusually is opened, enter the input current potential I(n-1 of next floor) detect, if I (n) input current potential is 0V, continue to detect the signal whether elevator has normal operation; If not would make the output port O1(n of this floor) O2(n) all export high level 24V, and shield the voltage detecting of the input port of this floor, and the diagnostic code information recording/of this floor got off, in the situation that elevator has the normal operation signal that failure message is passed to elevator main control board; If elevator has the normal operation signal, then continue to detect to judge whether whether the current floor that unusually opens the door consistent with the floor of the elevator main control board that obtains, if inconsistent then make the delivery port O1(n of this floor) and O2(n) output 24V high level, warning actuator BJ(n) action realizes the alarm of this floor, and the floor that the software the inside arranges warning is arranged is not detecting its corresponding input port voltage I (n), and the failure message of this floor is passed to elevator main control board; Then enter the input port current potential I(n-1 of next floor) detection; If it is consistent with the elevator main control board floor that obtains to detect the current floor that unusually opens the door, then continue to judge whether the elevator master control program has the advance door opening signal, or little flat signal, just stop O2(n if having) output, namely disconnect the warning actuator, O1(n) output 24V voltage is arranged, for the detection of lower one deck provides power supply, and enter the input potentiometric detection of next floor, if do not have advance door opening signal or little flat signal, then make the output port O1(n of this floor) O2(n) all export high level 24V, and shield the voltage detecting of the input port of this floor, and the diagnostic code information of this floor is passed to elevator main control board.Adopt input voltage that identical method of inspection detects next floor successively to the bottom, begin again to begin to detect from attic, like this detection of loop cycle ground.Simultaneously, also added Interruption in this method of inspection, the unlocking condition of this Interruption is to have detected output port O1(n) and O2(n) all exported 24V voltage, namely detected Room door and unusually opened.Response makes the Voltage-output 0V of all delivery port O1 and O2 when interrupting, restart each input port I(n of conductively-closed), again begin to detect from attic whether the Room door that unusually is opened is arranged, the effect of this Interruption is in the time of certain layer, Room door sends warning after unusually opening, but by behind artificial or the autoshutdown time, this detecting device still can detect accurately to this floor.
If the building is outage or elevator PTO Power Take Off suddenly, then can't detect elevator floor information, judge that elevator is in the error staties such as outage, this device only uses the direct supply work of storage battery, directly rely on switch and input port in parallel to judge, judge that flow process is same as described above, and not with elevator normal operation information, elevator floor information, fine motion or the contrast of advance door opening information, independent used purpose when realizing that this device does not cooperate with elevator control cabinet.
The present invention includes a detection alarm circuit, this detection alarm main circuit will comprise a master cpu, serial communication module, IO interface circuit.CPU gathers the make-and-break status information of each floor switch by the I mouth, functional sequence method with reference to accompanying drawing 2 and 3, unusually the be opened O1(n of door place, Room n floor of control) with O2 (n) thus delivery port output 24V high level drives the alarm appliance action, send the alarm of light or sound, after generating simultaneously failure message self storage of respective storey, pass to the elevator main control board by the serial pass circuit again, make the elevator main control board digital display show this failure message.The floor position of described input/output port and elevator is one to one, at each stop an input port I and two delivery port O1, O2 is arranged.Described detection alarm circuit can change according to the data bit of input port corresponding address the floor number of judging accurately when current two switches in parallel all disconnect.This CPU can periodically gather the existing information data of elevator main control board by serial communication circuit, comprises that stop data, elevator fine motion flat bed signal, the elevator of elevator identification shifts to an earlier date pre-enabling signal.
The present invention also comprises the power module that is made of chargeable battery and external source of AC, described supply module can be when having external source, and with external source 220V power supply, this moment, rechargeable battery was in floating charge state, when not having external source, provide 24V with battery.
This device can periodically obtain elevator floor number, fine motion flat bed signal and the advance door opening signal of elevator main control board identification.Suppose that elevator car position is at the level position in the 3rd buildings, and 3 balcony doors are opened, and elevator is working properly, elevator floor does not have because slide is saved oneself or the phenomenon of staggered floor appears in other reasons, and elevator main control board do not send advance door opening signal and fine motion flat bed signal, only has this moment the touching switch J3 in the 3rd buildings to disconnect, other touching switch and all conductings of magnetic switch, then all I mouth input voltages all are 24V, and the program of this device is judged the Room door that unusually is not opened, thereby does not report to the police.
The below describes with a concrete example, suppose that elevator car position is at the level position in the 3rd buildings, and the Room door in the 3rd buildings and the 2nd buildings all is opened, and elevator is working properly, elevator floor does not have because slide is saved oneself or the phenomenon of staggered floor appears in other reasons, and elevator main control board does not send advance door opening signal and fine motion flat bed signal, have the touching switch J3 in the 3rd buildings, the touching switch J2 in the 2nd buildings, the magnetic switch G2 in the 2nd buildings all to disconnect this moment, the voltage that this device at first detects I (2) mouthful is 0V, according to table one:
The floor that can get Room door anomalous behavior is 2 layers, because elevator is working properly, there is not staggered floor, program judges that unusual Room bar layer is consistent with elevator control panel identification floor, and master control board does not send advance door opening signal and fine motion flat bed signal, thereby programming control O1 (2) mouthful of output high level 24V provides the detection VREF (Voltage Reference) for next floor.At O1(2) output is arranged after, software inhouse shielding input port I(2) electric potential signal, make it to keep the driver output of reporting to the police always.O2(2) output 24V is the panalarm BJ2 power supply of the second floor, simultaneously, starting timer (being exemplified as 30s) just only has the second floor to send the alarm of light or sound this moment, and send to elevator main control board and show corresponding failure message only having the 2nd buildings failure message that Room door opens the door unusually to occur, behind the I that has detected ground floor (1) mouthful of voltage, program can begin to rejudge the floor that whether has new Room door unusually to be opened from attic again and occur, and just shield its detection port for the floor that occurs reporting to the police, not at the I mouth input voltage that detects this floor, after the timer timing stops, all delivery port O1(n), O2(n) stop output, again detect each layer door state from top layer to bottom.
Suppose that elevator car position is at the level position in the 3rd buildings, and the 3rd buildings, the 2nd buildings, the Room door in the 1st building all is opened, namely there is the Room door of two floors unusually to open, and elevator is working properly, elevator floor does not have because slide is saved oneself or the phenomenon of staggered floor appears in other reasons, and elevator main control board does not send advance door opening signal and fine motion flat bed signal, the touching switch J3 in the 3rd buildings is arranged this moment, the touching switch J2 in the 2nd buildings, the magnetic switch G2 in the 2nd buildings, the touching switch J1 in the 1st building, the magnetic switch G1 in the 1st building disconnects, the voltage that this device at first detects I (2) mouth is 0V, the floor that can obtain Room door anomalous behavior according to table one is 2 layers, because elevator is working properly, there is not staggered floor, and master control board does not send advance door opening signal and fine motion flat bed signal, thereby programming control O1 (2) mouthful of output high level 24V provides the detection VREF (Voltage Reference) for next floor, O2(2) be the panalarm BJ2 power supply of the second floor, because two switch J1 of 1 floor, G1 disconnects, the voltage that this device detects again I (1) mouth is 0V, the floor that can obtain Room door anomalous behavior according to table one is 1 layer, because elevator does not have staggered floor, and master control board does not send advance door opening signal and fine motion flat bed signal, thereby the warning actuator BJ1 power supply that this device programming control O2 (1) mouthful output high level 24V gives the first floor, and failure message that Room door opens the door is unusually all appearred in the 2nd buildings and the 1st building send to elevator main control board and show corresponding failure message.Because the 1st building is last floor that this device detects, program can begin to rejudge the floor that whether has new Room door unusually to be opened from attic again and occur, and for the floor that occurs reporting to the police just not at the I mouth input voltage that detects this floor.As above, starting O1(2) and O2(2) during output, timer starts, when the timer meter triggers when interrupting all delivery port O1(n), O2(n) stop output, again detect each layer door state from top layer to bottom.
Suppose that elevator car position is at the level position in the 3rd buildings, and 3 balcony doors all are opened, and elevator is working properly, elevator floor does not have because slide is saved oneself or the phenomenon of staggered floor appears in other reasons, but elevator main control board sends advance door opening signal and fine motion flat bed signal, the magnetic switch in the 3rd buildings will be after Elevator landing stops could be effectively closed, this moment, elevator was in the running state of opening the door, cause 3 building magnetic switch effectively not closed, the touching switch J3 in the 3rd buildings also disconnects, although it is 0V that this device detects the input voltage of I (3) mouth, but software makes O1(3) output 24V provides the detection VREF (Voltage Reference) for next floor, O2(3) output 0V, this moment can not report to the police in the 3rd buildings, makes O1(3 behind advance door opening signal or fine motion blackout) output 0V.Then continue the detection of next floor.
Suppose elevator because slide is saved oneself or the staggered floor phenomenon appears in other reasons, be that lift car reality is at 2 floors, but the elevator floor of elevator main control board identification is at 3 floors, when the Room of 3 floors door is opened unusually, the voltage that this device recognizes I (3) mouth is 0V, program judges that the current floor that unusually opens the door is consistent inconsistent with the floor of elevator main control board identification, then no matter whether elevator exists advance door opening signal and fine motion flat bed signal, this device program is all controlled O2 (3) mouthful of output high level 24V to the warning actuator BJ3 power supply of third story layer, O1(3 simultaneously) output voltage is that lower circuit detects usefulness, and failure message that Room door opens is unusually appearred in the 3rd buildings sends to elevator main control board and show corresponding failure message.
Suppose that car is not or not the 2nd buildings, the 2nd buildings unusual Room door occurs and are opened, and this device has carried out effectively reporting to the police to the 2nd buildings, but because the maintenance and debugging personnel keep in repair timely, so that the Room door in the 2nd buildings is effectively closed, got rid of this fault, because this device program part has added 30S Interruption self-checking function when one Room door abnormal condition occur (referring to accompanying drawing 3, this time is change setting as required, herein for giving an example), its effect is when breaking down, this device is closed All Alerts output every 30S, recover the floor detection port of conductively-closed, and unusually opened also from whether again detecting successively this layer Room door that (certainly, all floors are also always in detection, not affected by timer), namely after detecting certain layer of Room door and unusually being opened, this layer warning device continues warning 30S at least, guaranteed safe enough.Room door if there is fault is keeped in repair normally, then will no longer report to the police after timer-controlled self-inspection appears in program.
If elevator power failure or building have a power failure, when can't detect elevator normal operation signal, this device still can independently be worked, continue to detect all Room doors of unusually being opened, and respective storey send alerting signal and in the memory device of device record trouble information, after building recover supply regular power, can send to elevator main control board to the failure message of record before and show.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (11)
1. detection alarm device that hoistway door is opened unusually, it is characterized in that: comprise power supply, control unit, be arranged on the first switch and the second switch of each floor, be arranged on the annunciator of each floor, the definition floor is respectively the 1st floor from top to bottom or from top to bottom, the 2nd floor ... the n floor, closure when described first switch of each floor cuts out fully at this floor Room door, floor Room door is non-disconnects when closing fully at this, the described second switch of each floor is closed when car is positioned at this floor level position, when leaving this floor level position, car disconnects, form n circuit parallel after the first switch of each floor and the second switch parallel connection, the first end of n circuit parallel arranges a high potential, the second end of n circuit parallel connects the first end of n-1 circuit parallel, the second end of n-1 circuit parallel connects the first end of n-2 circuit parallel, tire out successively and push away, until connecting the first end of the 1st circuit parallel, the second end of the 2nd circuit parallel forms a circuit series, the second end of each circuit parallel is electrically connected to n input end of described control unit, described control unit comprises potential detecting circuit and high potential output circuit, described potential detecting circuit detects the current potential of n input end, when n input end is active potential, described high potential output circuit is given the second end input high potential of described n circuit parallel, and make described alarm equipment alarm for the annunciator power supply of n floor, the current potential of described potential detecting circuit n-1 input end of detection in the same manner is until the 1st circuit parallel.
2. the detection alarm device unusually opened of hoistway door according to claim 1, it is characterized in that: described control unit comprises elevator main control board, described elevator main control board identifies the floor information of car, described potential detecting circuit detects the current potential of n input end, when position that n input end is active potential and car during not at described n floor, described high potential output circuit is given the second end input high potential of described n circuit parallel, and make described alarm equipment alarm for the annunciator input high potential of n floor, when the position of n input end active potential and car is positioned at described n floor and n floor advance door opening signal or little flat signal is arranged, described high potential output circuit is given the second end input high potential of described n circuit parallel, and input active potential for the annunciator of n floor, the current potential of described potential detecting circuit n-1 input end of detection in the same manner is until the 1st circuit parallel.
3. the detection alarm device unusually opened of hoistway door according to claim 1, it is characterized in that: described the first switch is the touching switch that is arranged on door place, the described Room, and described second switch is to be installed in the magnetic switch at each floor lading door dill place and the permanent magnet that installs at the magnetic switch place of installing corresponding to lading door dill on car sill.
4. the detection alarm device that each described hoistway door is opened unusually in 3 according to claim 1, it is characterized in that: the power supply of described detection alarm device is for to be made of rechargeable battery and external AC power supply, when external AC power supply is arranged, powered by external AC power supply, source of AC is given described rechargeable battery charging, when not having external AC power supply, by rechargeable battery powered.
5. the detection alarm device that each described hoistway door is opened unusually in 3 according to claim 1, it is characterized in that: described annunciator is buzzer phone and/or warning light-emitting device.
6. the detection alarm device that each described hoistway door is opened unusually in 3 according to claim 1, it is characterized in that: described high potential is 24V, described active potential is 0V.
7. the detection alarm implementation method of a detection alarm device of unusually opening such as each described hoistway door in the claim 1 to 6 is characterized in that: comprise the steps:
The first step: whether the Room door of judging the n floor abnormal start-up, then enters in this way second step, as otherwise entered for the 7th step;
Second step: judge whether elevator has the normal operation signal, if any then entering for the 3rd step, then entered for the 6th step such as nothing;
The 3rd step: judge that the current floor that unusually opens the door is whether consistent with the floor that elevator main control board is identified, then entered for the 4th step in this way, as otherwise entered for the 6th step;
Whether the 4th step: detecting has advance door opening or fine motion flat bed signal, if any then entering for the 5th step, then enters for the 6th step such as nothing;
The 5th step: make this floor circuit parallel the second end for high potential, give the annunciator input active potential of this floor;
The 6th step: make this floor circuit parallel the second end for high potential, give the annunciator input high potential of this floor;
The 7th step: make the value of number of floor levels n subtract 1, repeat above-mentioned steps, until finish the judgement of the first floor;
The 8th step: the reset detection warning device, make the each point of circuit series and the annunciator of each floor be active potential, repeat above-mentioned steps.
8. detection alarm implementation method according to claim 7 is characterized in that: in described the 6th step, comprise the next detection to this floor of shielding, and the diagnostic code of this floor is passed to the step of elevator main control board.
9. detection alarm implementation method according to claim 8 is characterized in that: described elevator main control board continues high potential for described annunciator, makes described annunciator continue to report to the police, and described time length is regularly realized by timer.
10. detection alarm implementation method according to claim 8, it is characterized in that: the timing of described timer is 30S.
11. each described detection alarm implementation method in 10 according to claim 7, it is characterized in that: described high potential is 24V, and described active potential is 0V.
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