CN104803251A - Method and system for detecting person trapping in elevator - Google Patents
Method and system for detecting person trapping in elevator Download PDFInfo
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- CN104803251A CN104803251A CN201510232355.8A CN201510232355A CN104803251A CN 104803251 A CN104803251 A CN 104803251A CN 201510232355 A CN201510232355 A CN 201510232355A CN 104803251 A CN104803251 A CN 104803251A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
- B66B5/024—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system where the abnormal operating condition is caused by an accident, e.g. fire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
- B66B3/002—Indicators
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- Selective Calling Equipment (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Elevator Control (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention provides a method and a system for detecting person trapping in an elevator. According to the logic combination between multiple outputted detection signals of the elevator from an elevator controller, the person trapping state of the elevator is detected. The detection signals comprise a person carrying signal, a door lock signal, a fault signal and an overhauling signal; when the person trapping state is determined, a corresponding alarming signal can be sent out. The method and the system have the advantage that the problem of false judging on person trapping in the elevator can be effectively solved.
Description
Technical field
The present invention relates to detection technique, particularly the method for inspection of elevator malfunction and system.
Background technology
Key panel in elevator is typically provided with emergency call button, for when elevator occurs abnormal, for personnel's call outside monitor staff that elevator carries, in the hope of the means helped.This is also the conventional means solving elevator malfunction at present.
But a lot of people does not also know, maybe dare not press emergency call button; Or when people are in nervous and panic states, can forget and press emergency call button; Also or, when emergency call button is malfunctioning, all cannot notify outer monitoring personnel in time.
In order to solve the problem, existing way is the sensor (as infrared pickoff etc.) increased in escalator for whether there being people in detecting elevator.Although increase this kind of sensor can initiatively obtain the detection signal whether having people in elevator, also there is following drawback:
1) affect the safety of elevator, need to newly increase sensor on existing elevator, may have an impact to existing stable electric wiring and complexity is installed.
2) cost is higher, and the sensor that precision is higher is expensive, is difficult to promote.
Therefore, need to improve the solution of existing elevator malfunction.
Summary of the invention
The object of the present invention is to provide a kind of method of inspection and system of elevator malfunction, for solving the electrical equipment that cannot realize neither increasing existing elevator of the prior art, automatically can detect again the problem finding elevator malfunction.
For solving the problems of the technologies described above, embodiments of the present invention provide a kind of method of inspection of elevator malfunction, comprise: according to export from electric life controller for an elevator multiple detection signals between logical combination, detect described elevator and whether be in oppressive state, wherein, described detection signal comprises: manned signal, door lock signal, breakdown signal and maintenance signal; When determining to be in oppressive state, send corresponding alarm signal.
Based on above-mentioned purpose, another embodiment of the invention provides a kind of checking system of elevator malfunction, comprise: detection module, for according to from electric life controller export for an elevator multiple detection signals between logical combination, detect described elevator and whether be in oppressive state, wherein, described detection signal comprises: manned signal, door lock signal, breakdown signal and maintenance signal; Alarm modules, for when determining to be in oppressive state, sends corresponding alarm signal.
Embodiment of the present invention in terms of existing technologies, determines whether have people in elevator by detecting lock signal on manned signal, door lock, breakdown signal and maintenance signal, effectively can solve the problem of elevator malfunction erroneous judgement.
In addition, determining that the time that described elevator is in oppressive state exceeds default time threshold, then corresponding alarm signal is sent.People can be prevented for maloperation and cause the of short duration abnormal situation of elevator to occur.
In addition, when detecting that detecting described elevator occur/is not in oppressive state appearance change, current testing result being preserved, and is determined whether alarm according to preserved testing result.When can guarantee that electric life controller occurs that power-off is abnormal or detection signal cannot send, still can determine whether have people in elevator, and then warning accurately and timely.
In addition, utilize described Dai Menqu signal, door lock signal, and the testing result of preserving is carried out logical combination and obtains manned signal, and utilize described Dai Menqu signal, door lock signal, and full signal, overload signal, at least one in command signal are carried out logical combination and obtain manned signal, make full use of detection signal that electric life controller provides to detect in elevator whether have people, and then help to detect elevator and whether be in oppressive state.Can accurately, timely give the alarm when elevator is in oppressive state thus.
Accompanying drawing explanation
Fig. 1 is the diagram of circuit of the method for inspection of the elevator malfunction of the first embodiment of the present invention.
Fig. 2 is the level logic schematic diagram obtaining Dai Menqu signal in the present invention.
Fig. 3 is the level logic schematic diagram determining manned signal in the present invention.
Fig. 4 determines in the present invention that elevator is in the level logic schematic diagram of oppressive state.
Fig. 5 is the another level logic schematic diagram determining manned signal in the present invention.
Fig. 6 is the checking system structural representation of the elevator malfunction of the 3rd embodiment of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.But, persons of ordinary skill in the art may appreciate that in each embodiment of the present invention, proposing many ins and outs to make reader understand the application better.But, even without these ins and outs with based on the many variations of following embodiment and amendment, each claim of the application technical scheme required for protection also can be realized.
As shown in Figure 1, the first embodiment of the present invention relates to a kind of method of inspection of elevator malfunction.Described method of inspection performs primarily of checking system.Wherein, described checking system is connected with electric life controller, the elevator one_to_one corresponding in described electric life controller and building, and each electric life controller can obtain all kinds of detection signals of corresponding elevator, and controls corresponding elevator according to obtained detection signal.Described electric life controller can also obtain all kinds of detection signals of each elevator in building.Such as, described electric life controller obtains the maintenance home position signal of elevator A, then control elevator A forbid responding each floor in building on give an order.
Described checking system can obtain that preset or whole detection signals, to carry out the detection of elevator malfunction from described electric life controller.
In step sl, described checking system according to export from electric life controller for an elevator multiple detection signals between logical combination, detect described elevator and whether be in oppressive state, wherein, described detection signal comprises: manned signal, door lock signal, breakdown signal and maintenance signal.Described manned signal comprises: at least one in full signal, overload signal, command signal.Wherein, described command signal refers to select to give set during at least one set in signal in calling signal and floor, and the signal resetted when described calling signal and floor select signal all to reset.Wherein, described calling signal refers to the signal that the call button that user presses elevator produces.When described floor selects signal to refer to the floor Selection Floater of user in elevator select a destination, press the signal that number of floor levels button produces.
Preferably, described detection signal also comprises Dai Menqu signal, enabling signal, elevator run signal.Wherein, described Dai Menqu signal for represent elevator be positioned at match with floor, can for the signal exported during the position of on-board and off-board.Described Dai Menqu signal directly can be obtained by described electric life controller, the enabling signal that also can export according to described electric life controller and the logical groups of elevator run signal is incompatible obtains described Dai Menqu signal.
Such as, as shown in Figure 2, described checking system receives enabling signal from described electric life controller by the level change procedure being set to reset, and the elevator run signal received is by the level change procedure resetting to set, then described checking system determine Dai Menqu signal that described elevator is positioned at a district from enabling signal set and elevator run signal resets time set, until described enabling signal reset and the set of elevator run signal time reset.
Corresponding, described checking system can utilize at least one in described full signal, overload signal, command signal, and the logical combination of described Dai Menqu signal and door lock signal and obtain described manned signal.
Such as, described checking system receives command signal, door lock signal, Dai Menqu signal, as shown in Figure 3, then when described command signal set (as, show in elevator target arrive floor signal), door lock signal set (namely door lock is locked), during Dai Menqu signal reset (i.e. elevator Bu Men district), described checking system determines manned home position signal (namely having people in elevator), until described door lock signal resets and Dai Men district home position signal just determines that described manned signal resets.
Particularly, multiple detection signals of elevator are initiatively sent to described checking system by described electric life controller; Or obtaining to described electric life controller transmission detection signal of described checking system timing is asked, and monitored each described detection signal is fed back to described checking system by described electric life controller.
Wherein, each described detection signal is the level signal of simulation, then described checking system by a corresponding elevator be used for represent that the level signal of manned signal, door lock signal, breakdown signal and maintenance signal carries out logical combination, if meet elevator oppressive situation occurs, then perform step S2, otherwise, then illustrate that elevator normally runs or is not in oppressive state, will not step S2 be performed.
Such as, as shown in Figure 4.When described checking system receives manned home position signal, the breakdown signal set (namely breaking down) of an elevator B1 and overhauls signal reset (being namely in auto state), detect described elevator B1 and meet the oppressive logical combination of appearance, then perform step S2, otherwise, then continue to monitor.
In step s 2, described checking system, when determining to be in oppressive state, sends corresponding alarm signal.
At this, described alarm signal includes but not limited to: audible and visible alarm, inform maintainer etc. in the mode of note/emergency call.
Preferably, described checking system, when determining that described elevator is in oppressive state, constantly to give the alarm signal incessantly or according to prefixed time interval, until the message that the personnel that receive confirm, just stops alarm signal.
Such as, described checking system is provided with acknowledge button, when determining that described elevator is in oppressive state, sends an audible and visible alarm every 5 seconds, until there is people to press described acknowledge button, described checking system stops audible and visible alarm according to the signal of pressing of described acknowledge button.
More preferably, described checking system determining that the time that described elevator is in oppressive state exceeds default time threshold, then sends corresponding alarm signal.Wherein, described time threshold is exemplified as: 10s.
As the second embodiment, with embodiment one unlike, the special situation occurring power-off for electric life controller, described method of inspection also comprises: when described manned signal changes, whether described checking system has the information of people to be preserved by the described elevator of correspondence.
Particularly, the manned signal that described in described checking system real-time reception, electric life controller provides, when the level generation saltus step of described manned signal, according to the direction of hopping edge, by whether there being the information of people in the described elevator of correspondence be saved in non-volatile memory device (as flash storage etc.).Wherein, whether described have the information of people can be one have people's zone bit.
Such as, when described manned signal is become high level by low transition, described checking system changes zone bit in memory device into 1 by 0, to represent in elevator B3 having people according to upper jumping edge now.When described manned signal becomes low level from high level, the zone bit in described memory device is become 0 by 1 according to lower jumping edge now by described checking system, to represent unmanned in elevator B3.
It should be noted that whether have the mode of people to be also only citing in the mode of preserving zone bit to preserve in elevator, but not limitation of the present invention.In fact, the Word message whether having people in elevator can also directly be preserved in described memory device.
Whether wherein, described checking system can also utilize described Dai Menqu signal, door lock signal, and have the information of people carry out logical combination and obtain described manned signal in the described elevator preserved.
Such as, as shown in Figure 5, when preserved flag is 1 (namely having people in elevator), described checking system determines described manned home position signal (namely having people in elevator), until described door lock signal resets (i.e. door lock disconnect) and Dai Menqu home position signal (namely elevator is at Men Qu) just determines described manned signal reset.
So, when described electric life controller generation powering-off state, described checking system cannot obtain any detection signal.So the described checking system moment monitors described electric life controller whether Power resumption.When described electric life controller restores electricity, described checking system according to the logical combination of the preserved each detection signal whether having the information of people and provide after described electric life controller energising, can determine whether described elevator is in oppressive state.
Particularly, when described electric life controller generation power-off, and when again restoring electricity, described electric life controller is inevitable exports current detection signal to described checking system.Now, whether described checking system can have the information of people according to preserved and determine whether to perform step S2 in conjunction with current each detection signal.
Such as, the testing result that described checking system is preserved before described electric life controller power-off for having people in elevator, i.e. described manned home position signal.When described electric life controller Power resumption, the door lock signal set that exported (namely door lock closes), breakdown signal set (i.e. et out of order) and maintenance signal reset (being namely in auto state), then described checking system determines that described manned signal, door lock signal, breakdown signal and maintenance signal all meet default oppressive logic, performs step S2.
And for example, the testing result that described checking system is preserved before described electric life controller power-off for having people in elevator, i.e. described manned home position signal.When described electric life controller Power resumption, the door lock signal set (namely door lock closes) exported, breakdown signal reset (i.e. non-et out of order) and maintenance signal reset (being namely in auto state), then described checking system determines that described manned signal, door lock signal, breakdown signal and maintenance signal do not meet default oppressive logic, will not perform step S2.
As shown in Figure 6, the 3rd embodiment of the present invention relates to a kind of checking system of elevator malfunction.Described checking system 1 is connected with electric life controller, and described electric life controller can obtain all kinds of detection signals of each elevator in building, and controls corresponding elevator according to obtained detection signal.Such as, described electric life controller obtains the maintenance home position signal of elevator A, then control elevator A forbid responding each floor in building on give an order.
Described checking system 1 comprises: detection module 11 and alarm modules 12.
Described detection module 11 can obtain that preset or whole detection signals, to carry out the detection of elevator malfunction from described electric life controller.
Particularly, described detection module 11 for according to from electric life controller export for an elevator multiple detection signals between logical combination, detect described elevator and whether be in oppressive state, wherein, described detection signal comprises: manned signal, door lock signal, breakdown signal and maintenance signal.Described manned signal comprises: at least one in full signal, overload signal, command signal.Wherein, described command signal refers to select to give set during at least one set in signal in calling signal and floor, and the signal resetted when described calling signal and floor select signal all to reset.Wherein, described calling signal refers to the signal that the call button that user presses elevator produces.When described floor selects signal to refer to the floor Selection Floater of user in elevator select a destination, press the signal that number of floor levels button produces.
Preferably, described detection signal also comprises Dai Menqu signal, enabling signal, elevator run signal.Wherein, described Dai Menqu signal for represent elevator be positioned at match with floor, can for the signal exported during the position of on-board and off-board.Described Dai Menqu signal directly can be obtained by described electric life controller, the enabling signal that also can export according to described electric life controller and the logical groups of elevator run signal is incompatible obtains described Dai Menqu signal.
Such as, as shown in Figure 2, described detection module 11 receives enabling signal from described electric life controller by the level change procedure being set to reset, and the elevator run signal received is by the level change procedure resetting to set, then described detection module 11 determine Dai Menqu signal that described elevator is positioned at a district from enabling signal set and elevator run signal resets time set, until described enabling signal reset and the set of elevator run signal time reset.
Corresponding, described detection module 11 can utilize at least one in described full signal, overload signal, command signal, and the logical combination of described Dai Menqu signal and door lock signal and obtain described manned signal.
Such as, described detection module 11 receives command signal, door lock signal, Dai Menqu signal, as shown in Figure 3, then when described command signal set (as, show in elevator target arrive floor signal), door lock signal set (namely door lock is locked), during Dai Menqu signal reset (i.e. elevator Bu Men district), described detection module 11 determines manned home position signal (namely having people in elevator), until described door lock signal resets and Dai Men district home position signal just determines that described manned signal resets.
Particularly, multiple detection signals of elevator are initiatively sent to described detection module 11 by described electric life controller; Or obtaining to described electric life controller transmission detection signal of described detection module 11 timing is asked, and monitored each described detection signal is fed back to described detection module 11 by described electric life controller.
Wherein, each described detection signal is the level signal of simulation, then described detection module 11 by a corresponding elevator be used for represent that the level signal of manned signal, door lock signal, breakdown signal and maintenance signal carries out logical combination, if meet elevator oppressive situation occurs, then perform described alarm modules 12, otherwise, then illustrate that elevator normally runs or is not in oppressive state, described alarm modules 12 will not be performed.
Such as, as shown in Figure 4.When described detection module 11 receives manned home position signal, the breakdown signal set (namely breaking down) of an elevator B1 and overhauls signal reset (being namely in auto state), detect described elevator B1 and meet the oppressive logical combination of appearance, then perform described alarm modules 12, otherwise, then continue to monitor.
Described alarm modules 12, for when determining to be in oppressive state, sends corresponding alarm signal.
At this, described alarm signal includes but not limited to: audible and visible alarm, inform maintainer etc. in the mode of note/emergency call.
Preferably, described alarm modules 12, when determining that described elevator is in oppressive state, constantly to give the alarm signal incessantly or according to prefixed time interval, until the message that the personnel that receive confirm, just stops alarm signal.
Such as, described alarm modules 12 is provided with acknowledge button, when determining that described elevator is in oppressive state, sends an audible and visible alarm every 5 seconds, until there is people to press described acknowledge button, described alarm modules 12 stops audible and visible alarm according to the signal of pressing of described acknowledge button.
More preferably, described alarm modules 12 determining that the time that described elevator is in oppressive state exceeds default time threshold, then sends corresponding alarm signal.Wherein, described time threshold is exemplified as: 10s.
As the 4th kind of embodiment, with embodiment three unlike, the special situation occurring power-off for electric life controller, described detection module 11 is also for when described manned signal changes, and whether described checking system has the information of people to be preserved by the described elevator of correspondence.
Particularly, the manned signal that described in described detection module 11 real-time reception, electric life controller provides, when the level generation saltus step of described manned signal, according to the direction of hopping edge, by whether there being the information of people in the described elevator of correspondence be saved in non-volatile memory device (as flash storage etc.).Wherein, whether described have the information of people can be one have people's zone bit.
Such as, when described manned signal is become high level by low transition, described detection module 11 changes zone bit in memory device into 1 by 0, to represent in elevator B3 having people according to upper jumping edge now.When described manned signal becomes low level from high level, the zone bit in described memory device is become 0 by 1 according to lower jumping edge now by described detection module 11, to represent unmanned in elevator B3.
It should be noted that whether have the mode of people to be also only citing in the mode of preserving zone bit to preserve in elevator, but not limitation of the present invention.In fact, the Word message whether having people in elevator can also directly be preserved in described memory device.
Whether wherein, described detection module 11 can also utilize described Dai Menqu signal, door lock signal, and have the information of people carry out logical combination and obtain described manned signal in the described elevator preserved.
Such as, as shown in Figure 5, when preserved flag is 1 (namely having people in elevator), described detection module 11 determines described manned home position signal (namely having people in elevator), until described door lock signal resets (i.e. door lock disconnect) and Dai Menqu home position signal (namely elevator is at Men Qu) just determines described manned signal reset.
So, when described electric life controller generation powering-off state, described detection module 11 cannot obtain any detection signal.So described detection module 11 moment monitors described electric life controller whether Power resumption.When described electric life controller restores electricity, described detection module 11 according to the logical combination of the preserved each detection signal whether having the information of people and provide after described electric life controller energising, can determine whether described elevator is in oppressive state.Particularly, when described electric life controller generation power-off, and when again restoring electricity, described electric life controller is inevitable exports current detection signal to described detection module 11.Now, whether described detection module 11 can have the information of people according to preserved and determine whether to perform described alarm modules 12 in conjunction with current each detection signal.
Such as, the testing result that described detection module 11 is preserved before described electric life controller power-off for having people in elevator, i.e. described manned home position signal.When described electric life controller Power resumption, the door lock signal set that exported (namely door lock closes), breakdown signal set (i.e. et out of order) and maintenance signal reset (being namely in auto state), then described detection module 11 determines that described manned signal, door lock signal, breakdown signal and maintenance signal all meet default oppressive logic, performs described alarm modules 12.
And for example, the testing result that described detection module 11 is preserved before described electric life controller power-off for having people in elevator, i.e. described manned home position signal.When described electric life controller Power resumption, the door lock signal set (namely door lock closes) exported, breakdown signal reset (i.e. non-et out of order) and maintenance signal reset (being namely in auto state), then described detection module 11 determines that described manned signal, door lock signal, breakdown signal and maintenance signal do not meet default oppressive logic, will not perform described alarm modules 12.
It is worth mentioning that, each module involved in present embodiment and unit are logic module and logical block, and in actual applications, a logical block can be a physical location, also can be a part for a physical location, can also realize with the combination of multiple physical location.In addition, in order to outstanding innovative part of the present invention, the unit not too close with solving technical matters relation proposed by the invention is not introduced in present embodiment, but this does not show the unit that there is not other in present embodiment.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiments of the invention, and in actual applications, various change can be done to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (10)
1. a method of inspection for elevator malfunction, is characterized in that, comprises:
According to export from electric life controller for an elevator multiple detection signals between logical combination, detect described elevator and whether be in oppressive state, wherein, described detection signal comprises: manned signal, door lock signal, breakdown signal and maintenance signal;
When determining to be in oppressive state, give the alarm signal.
2. the method for inspection of elevator malfunction according to claim 1, it is characterized in that, described when determining to be in oppressive state, the mode of the signal that gives the alarm comprises: determining that the time that described elevator is in oppressive state exceeds default time threshold, then give the alarm signal.
3. the method for inspection of elevator malfunction according to claim 1, is characterized in that,
Described manned signal obtains in the following manner:
Utilize at least one in full signal, overload signal, command signal, and Dai Menqu signal and door lock signal, carry out logical combination and obtain.
4. the method for inspection of elevator malfunction according to claim 3, is characterized in that, the signal that the logical combination that described Dai Menqu signal is the enabling signal that exports according to described electric life controller and elevator run signal obtains.
5. the method for inspection of elevator malfunction according to claim 1, is characterized in that, also comprises:
When described manned signal changes, the information of people whether is had to be preserved by the described elevator of correspondence;
Described manned signal obtains in the following manner:
Utilize Dai Menqu signal, door lock signal, and preserve whether have the information of people to carry out logical combination to obtain.
6. the method for inspection of elevator malfunction according to claim 5, it is characterized in that, also comprise: monitor the whether power-off of described electric life controller, and after monitoring energising, according to the logical combination of the preserved each detection signal whether having the information of people and provide after described electric life controller energising, determine whether described elevator is in oppressive state.
7. a checking system for elevator malfunction, is characterized in that, comprises:
Detection module, for according to from electric life controller export for an elevator multiple detection signals between logical combination, detect described elevator and whether be in oppressive state, wherein, described detection signal comprises: manned signal, door lock signal, breakdown signal and maintenance signal;
Alarm modules, for when determining to be in oppressive state, give the alarm signal.
8. the checking system of elevator malfunction according to claim 7, is characterized in that, described detection signal also comprises Dai Menqu signal;
Described detection module is also for utilizing at least one in full signal, overload signal, command signal, and described Dai Menqu signal and door lock signal are carried out logical combination and obtain described manned signal.
9. the checking system of elevator malfunction according to claim 7, is characterized in that, whether described detection module also for when described manned signal changes, has the information of people to be preserved by the described elevator of correspondence;
Described detection module is also for utilizing Dai Menqu signal, door lock signal, and the information of people that whether has of preserving is carried out logical combination and obtains described manned signal.
10. the checking system of elevator malfunction according to claim 9, it is characterized in that, described detection module is also for monitoring the whether power-off of described electric life controller, and after monitoring energising, according to preserved testing result and the logical combination at the rear each detection signal provided of described electric life controller energising, determine whether described elevator is in oppressive state.
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| CN105600638A (en) * | 2015-11-20 | 2016-05-25 | 宁夏电通物联网科技股份有限公司 | People stranding fault recognition device and method of elevator |
| CN107879216A (en) * | 2017-12-06 | 2018-04-06 | 江苏梯卫士网络科技有限公司 | A kind of elevator faults close people's logic judgment and automatic help system and method |
| CN108821051A (en) * | 2018-06-25 | 2018-11-16 | 中联重科股份有限公司 | Elevator passenger remote rescue method and system |
| CN109368435A (en) * | 2018-12-21 | 2019-02-22 | 深圳技术大学（筹） | The monitoring method and device of elevator malfunction failure |
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| CN113233276A (en) * | 2021-05-13 | 2021-08-10 | 上海江菱机电有限公司 | Auxiliary analysis method and system for monitoring failure of trapped image of elevator car |
| CN113968527A (en) * | 2021-10-22 | 2022-01-25 | 南京佳汇科技实业有限公司 | Intelligent elevator based on Internet of things |
| WO2023028753A1 (en) * | 2021-08-30 | 2023-03-09 | 通力股份公司 | Method and system for detecting person trapped by elevator car |
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| CN109368435A (en) * | 2018-12-21 | 2019-02-22 | 深圳技术大学（筹） | The monitoring method and device of elevator malfunction failure |
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| CN111071892A (en) * | 2019-12-25 | 2020-04-28 | 深圳技术大学 | Elevator power failure fault monitoring system and method |
| WO2021128062A1 (en) * | 2019-12-25 | 2021-07-01 | 深圳技术大学 | Elevator power failure monitoring system and method |
| CN111071892B (en) * | 2019-12-25 | 2023-09-12 | 深圳技术大学 | Elevator power failure monitoring system and method |
| CN113233276A (en) * | 2021-05-13 | 2021-08-10 | 上海江菱机电有限公司 | Auxiliary analysis method and system for monitoring failure of trapped image of elevator car |
| WO2023028753A1 (en) * | 2021-08-30 | 2023-03-09 | 通力股份公司 | Method and system for detecting person trapped by elevator car |
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