CN104176581A - Elevator lift car illumination diagnosis device - Google Patents
Elevator lift car illumination diagnosis device Download PDFInfo
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- CN104176581A CN104176581A CN201310193887.6A CN201310193887A CN104176581A CN 104176581 A CN104176581 A CN 104176581A CN 201310193887 A CN201310193887 A CN 201310193887A CN 104176581 A CN104176581 A CN 104176581A
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Abstract
The invention relates to an elevator lift car illumination diagnosis device, which comprises a camera (106), a detecting device (108), a storage device (112), a control device (110) and a communication device (114), wherein the camera (106) shoots the inside of a lift car (102) provided with an illuminating device (104), the detecting device (108) detects the brightness of an image shot by the camera, the storage device (112) stores detecting conditions and an initial brightness value, the control device (10) is used for comparing the brightness value detected by the detecting device with the initial brightness value, carrying out diagnosis on the illumination of the lift car on the basis of a comparison result and uploading the image shot by the camera into the control device (110) arranged in a server (120) connected with a network, and the communication device (114) is communicated with an external terminal. When the brightness difference is greater than a designated value, the control device determines the illumination fault grade on the basis of phenomenon occurrence frequency, and the communication device notifies a portable terminal of maintenance personnel of the fault grade and points to the interlinkage of the server. Therefore maintenance personnel can observe the condition inside the lift car on line in time and can take corresponding measures.
Description
Technical field
The present invention relates to a kind of lift cage illumination diagnostic device, it comprises the pick up camera of taking the cab interior that is provided with illumination; And detect the detecting device of the brightness of the image of described shot by camera.
Background technology
Japanese patent gazette JP 2008-44697 has disclosed a kind of elevator fluorescent lifetime diagnostic device.In this patent gazette, there is following record: " a kind of image processing apparatus of elevator, has the camera head of taking cab interior; The image that this camera head is taken is divided into the image cutting part in more than 4 region; Store the image storage part of divided image; The brightness calculation portion of calculating the brightness of each area image, is characterized in that: have brightness of image comparing section, the brightness of its image of storing at interval of the comparison of the 1st time period; Fluorescent lamp flicker detection portion, when brightness variable quantity reaches specified multiple when above, it judges that fluorescent lamp is for flicker; Fluorescent lifetime test section, calculates the number of times of fluorescent lamp flicker, while being equal to or greater than predetermined number of times, judges that fluorescent lamp is to the life-span in this number of times is being longer than the 2nd time period of the 1st time period ".This communique is also recorded: this elevator fluorescent lifetime diagnostic device judges that fluorescent lamp, to when the life-span, gets in touch with to central monitoring position.
But, because above-mentioned elevator fluorescent lifetime diagnostic device is that the brightness before and after the time period changes and compares for the 1st, although can detect the flicker of fluorescent lamp, cannot detect light source gradually dimmed deteriorated.In addition, above-mentioned elevator fluorescent lifetime diagnostic device is to notify central monitoring position by testing result, and central monitoring position arranges service personnel to keep in repair will to bring long time to lag behind again.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of lift cage illumination diagnostic device, the flicker that it not only can detect fluorescent lamp, can also detect light source gradually dimmed deteriorated, and in the time detecting light failure, can directly notify service personnel, shorten the time of trouble-shooting.
For solveing the technical problem, lift cage illumination diagnostic device of the present invention not only comprises: the pick up camera of taking the cab interior that is provided with illumination; The detecting device that detects the brightness of the image of described shot by camera, also has: memory storage, and it stores testing conditions and the original intensity value of described detecting device; Control setup, the brightness value that it detects described detecting device under described testing conditions and original intensity value contrast, based on this comparing result, the illumination of described car is diagnosed, and by the image upload of described shot by camera in server connected to the network; And communication device, it can carry out communication with exterior terminal.In the time occurring that the luminance difference of comparing result is greater than the phenomenon of designated value, the frequency of described control setup based on there is this phenomenon, determine the fault level of illumination, notify the link of this fault level and the described server of sensing by described communication device to portable terminal.
Lift cage illumination diagnostic device of the present invention is that the brightness value detecting and original intensity value are compared, therefore the scintillation that the fluorescent lamp that moment brightness changes occurs not only can be detected, can also detect such as the dimmed deteriorated phenomenon gradually such as LED (light-emitting diode) light source.In addition, in the time detecting light failure, fault directly can be notified to the portable terminals such as the smart mobile phone of service personnel, be made service personnel take in time corresponding measure, shorten the time of trouble-shooting.
Brief description of the drawings
Fig. 1 is the composition schematic diagram of the lift cage illumination diagnostic device of explanation one embodiment of the invention.
Fig. 2 utilizes the throw light on diagram of circuit of an embodiment of diagnosis of the diagnostic device of lift cage illumination shown in Fig. 1.
Fig. 3 is the continuity of diagram of circuit shown in Fig. 2.
Fig. 4 is the time diagram of the detecting step in flow process shown in instruction diagram 2.
Fig. 5 is the schematic diagram of the signalling trouble that sends to portable terminal of lift cage illumination diagnostic device of the present invention.
Fig. 6 represents to utilize in an embodiment of the present invention portable terminal to confirm the schematic diagram of situation in lift car.
Mark > in < accompanying drawing
102-car, 104-illumination, 106-pick up camera, 108-detecting device, 110-control setup, 112-memory storage, 114-communication device, 116-portable terminal, 118-administrative center, 120-server, 122-network.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is the composition schematic diagram of the lift cage illumination diagnostic device of explanation one embodiment of the invention.
This lift cage illumination diagnostic device comprises pick up camera 106, detecting device 108, control setup 110, memory storage 112 and communication device 114.
Pick up camera 106 is located at the inside of lift car 102, for taking the situation of car 102 inside.Cab interior is provided with illumination 104, if this illumination et out of order will bring the variation of bright-dark degree in car, and this variation will have influence on the brightness of the captured image of pick up camera 106.Pick up camera 106 is DVs.Pick up camera 106 can be also analog video camera, at this moment can between pick up camera 106 and detecting device 108, append analog-digital commutator, and the analog signal of pick up camera 106 is converted to digital signal.
Detecting device 108 detects the brightness of the captured image of pick up camera 106.Detecting device 108 comprises the interface that can read the graphicinformation that pick up camera 106 exports, and program according to the rules computer that this image is calculated, processed.Detecting device 108 can also comprise the memory device of store image information and data.Wherein, the function of calculating and process image also can be completed by the computer part of control setup 110, and the graphicinformation that at this moment described interface can be read from pick up camera 106 is directly inputted to the computer part of control setup 110.In addition, the function of store image information and data also can be held a concurrent post by memory storage 112.But, in order narrating conveniently, in the embodiment of following explanation, all to there is taking detecting device 108 computer of independently processing image and narrated as prerequisite.
Detecting device 108 can, under the control of control setup 110, obtain a two field picture every certain time interval from pick up camera 106, detects the brightness of this image." brightness of image " in this specification sheets and corresponding technical scheme, mentioned can represent by following manner.For example, for a certain two field picture in the captured image of pick up camera 106, the numerical value that detecting device 108 can obtain with the brightness value (or GTG value) of its all pixels of accumulative total is as the brightness that represents this image.
If pick up camera 106 is colour TV cameras, detecting device 108 can utilize the luminance signal " Y " in the component video signal that pick up camera 106 exports, and in accumulative total one two field picture, the brightness value of all pixels is as the brightness that represents this image.If 106, pick up camera is exported RGB components and do not exported Y component, detecting device 108 can be converted into the RGB component of each pixel Y component, and then the brightness value of all pixels of accumulative total is as the brightness that represents this image.RGB component for example can utilize known following formula (1) to carry out to the conversion of Y component.
Y＝0.299*R+0.587*G+0.114*B (1)
Certainly, also can between pick up camera 106 and detecting device 108, append chromacoder, first rgb signal is transformed into brightness signal Y and colour difference signal.Like this, detecting device 108 just can utilize the brightness value of all pixels of this brightness signal Y accumulative total as the brightness that represents a two field picture.
Memory storage 112 is stored testing conditions and the original intensity value of detecting device 108.Memory storage 112 also records the fault level of illumination.Memory storage 112 can also be stored the graphicinformation that detecting device 108 reads from pick up camera 106, also can store detecting device 108 or control setup 110 and process the data of image.
" the original intensity value " mentioned in this specification sheets and corresponding technical scheme refers to has installed after illumination 104 car 102 is interior, and detecting device 108 is under the testing conditions of defined, to the initial brightness value detecting of the captured image of pick up camera 106.When changing illumination 104 time, after replacing, again the image of pick up camera 106 is detected with detecting device 108, new brightness value is stored in memory storage 112 as new " original intensity value ", replace old " original intensity value ".In addition, condition when " testing conditions " of storage detects " original intensity value " with detecting device 108 in memory storage 112 is identical.
Control setup 110 refers to the elevator control gear including elevator control cabinet.Control setup 110 is also controlled other component parts of lift cage illumination diagnostic device of the present invention.Control setup 110 comprises for elevator control and the computer that carries out various calculating.
The brightness value that control setup 110 detects detecting device 108 under described testing conditions and original intensity value contrast, and based on this comparing result, the illumination 104 of car 102 are diagnosed.Control setup 110 also by image upload captured pick up camera 106 in the server 120 being connected with network 122, make those utilize exterior terminal can watch this image by the people of network 122 access services devices 120, thereby grasp the situation of car 102 inside.This uploading can be to upload in real time, and the image that can make people upload by observation is like this grasped the latest development of car 102 inside.
Communication device 114 can carry out communication with exterior terminal under the control of control setup 110.
The brightness value that control setup 110 detects detecting device 108 and original intensity value contrast, in the time occurring that the luminance difference of comparing result is greater than the phenomenon of designated value, the frequency of control setup 110 based on there is this phenomenon, determine the fault level of illumination, such as, notify this fault level and point to the link of server 120 to the portable terminal 116 (smart mobile phone etc.) of service personnel and the administrative center 118 that manages this elevator by communication device 114.
After service personnel has notice, not only can recognize the fault level of illumination, and can use the link information providing in notice, utilize portable terminal 116 access services devices 120, by observing the image in the captured car of pick up camera 106, judge the actual conditions in car, take in time corresponding measure.
The operating personal of administrative center 118 also can utilize the terminal of this administrative center, uses the link information providing in notice, by observing the image in the captured car of pick up camera 106, judges the actual conditions in car, sends corresponding instruction to service personnel.
Fig. 2 utilizes the throw light on diagram of circuit of an embodiment of diagnosis of the diagnostic device of lift cage illumination shown in Fig. 1.Fig. 3 is the continuity of diagram of circuit shown in Fig. 2.Illustrate and utilize a throw light on embodiment of diagnosis of lift cage illumination diagnostic device of the present invention below in conjunction with Fig. 2 and Fig. 3.
Identical in order to ensure each environmental conditions detecting, lift cage illumination diagnostic device of the present invention is selected stop at a certain floor and do not move when car 102, and in car 102, there is no passenger, under the state of the elevator door of car 102 in closing, detects.In order to reduce car 102 environment around to the impact detecting, can also select to detect in the time that car 102 stops at the certain floor with certain lighting environment.
So, at step S202, first confirm by control setup 110 whether elevator stops mobile, confirm whether also leave passenger in car 102, confirm whether elevator door closes.Only have in the time meeting " elevator stops ", " there is no passenger " and " elevator door cuts out " this three conditions, illumination diagnostic program just enters next step S204 simultaneously.These conditions approve that the control command to send according to control setup 110 confirms really, and detection (feedback) signal that also can beam back according to various detectors is confirmed.In other words, only have in the time that three kinds of signals that represent " elevator stops ", " there is no passenger ", " elevator door cuts out " are all various, just really start the diagnostic program that throws light on.
At step S204, control setup 110 will represent to detect the parameter N zero clearing of cycle number.Control setup 110 reads testing conditions from memory storage 112, controls the detection of detecting device 108.
At step S206, control setup 110 is lighted after the illumination of car 102 104 is closed once again.A lot of illuminations easily manifest the omen of fault in the initial stage of lighting a lamp.Especially in the time that illumination 104 is fluorescent lamp, there is the possibility maximum of flicker in the starting stage after lighting a lamp, so, again light after fluorescent lamp, start at short notice to detect, scintillation just easily detected.The object of this step is exactly to strengthen the sensitivity of detection failure omen.
If in the time of satisfied " elevator stops ", " there is no passenger " and " elevator door cuts out " this three conditions, elevator is that pick up camera 106 is turned off conventionally,, at the step S206 of illumination diagnostic program, needs control setup 110 to open the switch of pick up camera 106.
Fig. 4 is the time diagram of the detecting step in flow process shown in instruction diagram 2.The time diagram on Fig. 4 top, corresponding to above-mentioned step S206, represents the process of again lighting after illumination 104 is closed once.The time diagram of Fig. 4 bottom is corresponding to step S208 below.
Step S208 is detecting step.After 5 seconds of illumination 104 switch connection, detecting device 108 starts to detect under the control of control setup 110.This " 5 second " is that the brightness in order to wait for illumination 104 reaches stable.Can set different wait times according to the difference of illumination kind.
As shown in the time diagram of Fig. 4 bottom, be 10 seconds detection time.Within this 10 second, repeated the detection of a brightness of image every 0.2 second.That is, obtain the up-to-date image of a frame every 0.2 second from pick up camera 106, detect its brightness.At this, in order to narrate conveniently, represent each brightness value detecting with " L ", with " L
0" expression original intensity value.
If there is the situation of destruction " elevator stops ", " there is no passenger " and " elevator door cuts out " these three conditions between step S204 and S208, such as elevator starts to move or elevator door is opened etc., control setup 110 will stop illumination diagnostic program, and the flow process of illumination diagnosis will start anew.At this moment because do not meet this three conditions, be just difficult to ensure the unification of testing conditions.
At step S210, control setup 110 is by the brightness value L detecting and original intensity value L at every turn
0compare, judged whether luminance difference (L
0-L) be greater than the phenomenon of designated value d.In the present embodiment, designated value d is defined as to " 30%L
0".Therefore, (L
0-L) > d=30%L
0refer to that brightness value L has dropped to original intensity value L
0below 70%.The size of designated value d also can need to be determined according to the kind, quantity of illumination and other.
If there is not (L
0-L) phenomenon of > d, illumination diagnostic program will jump to the step S312 shown in Fig. 3.If there is (L
0-L) phenomenon of > d, control setup 110 by follow-up step S212 to the fault level of determining illumination 104 in S310.
At step S212, whether control setup 110 will judge always be not bright light within 10 seconds of detecting, or within 10 seconds of detecting brightness value L whether always all in original intensity value L
0below 50%.If detect 10 seconds in always not bright light or brightness value L always lower than 50%L
0, there is the most serious fault in judgement illumination 104, and define its fault level for " E ", and illumination diagnostic program will enter step S214.If not " detect 10 seconds in always not bright light or brightness value L always lower than 50%L
0", control setup 110 will enter the judgement of step S216.
At step S214, control setup 110 is as failure record, by the signal storage of grade E in memory storage 112.Then, illumination diagnostic program will jump to the step S312 shown in Fig. 3.
At step S216, control setup 110 is turned off the light more than whether having 2 seconds judging within 10 seconds of detecting, or within 10 seconds of detecting, whether have 2 second above brightness value L in original intensity value L
0below 70%.If within 10 seconds of detecting, have more than 2 seconds turn off the light or brightness value L lower than 70%L
0situation, control setup 110 will judge illumination 104 et out of orders, and define its fault level for " D ", illumination diagnostic program will enter step S218.If not " within 10 seconds of detecting, have more than 2 seconds turn off the light or brightness value L lower than 70%L
0", control setup 110 will enter the judgement of step S302.
At step S218, control setup 110 is as failure record, by the signal storage of grade D in memory storage 112.Then, illumination diagnostic program will jump to the step S312 shown in Fig. 3.
At step S302, control setup 110 will judge that the moment brightness whether having within 10 seconds of detecting more than 3 times changes.At this, so-called " moment brightness changes " refers to that brightness value is brought down below 50%L in the process of detected image brightness
0after, return to again 50%L
0above phenomenon.In the process of a brightness of detection in 0.2 second, even if detected value is once lower than 50%L
0, also belong to " moment brightness changes ".
If there is more than 3 times moment brightness to change within 10 seconds of detecting, and in memory storage 112, existing grade is failure record more than B, control setup 110 will judge illumination 104 et out of orders, and define its fault level for " C ", and illumination diagnostic program will enter step S304.If not " have more than 3 times moment brightness to change within 10 seconds of detecting, and existing grade being failure record more than B in memory storage 112 ", control setup 110 will enter the judgement of step S306.
At step S304, control setup 110 is as failure record, by the signal storage of grade C in memory storage 112.Then, illumination diagnostic program will jump to step S312.
At step S306, control setup 110 will judge that whether moment brightness occurs within 10 seconds of detecting changes.If the moment brightness of 1 time or 2 times has occurred within 10 seconds of detecting to be changed, and in memory storage 112, existing grade is failure record more than B, control setup 110 will judge illumination 104 et out of orders, and define its fault level for " B ", and illumination diagnostic program will enter step S308.If not " the moment brightness that 1 time or 2 times have occurred within 10 seconds of detecting changes, and in memory storage 112, existing grade is failure record more than B ", the diagnostic program that throws light on will enter step S310.
At step S308, control setup 110 is as failure record, by the signal storage of grade B in memory storage 112.Then, illumination diagnostic program will jump to step S312.
At step S310, although owing to having occurred (L within 10 seconds of detecting
0-L) phenomenon of > d, but the result detecting does not but form the fault of grade B to E, control setup 110 is defined as the fault of grade " A ", and by the signal storage of grade A in memory storage 112.Then, illumination diagnostic program enters step S312.So far, detecting device 108 and control setup 110 have completed once " circulation of detection and fault level judgement ", hereinafter to be referred as " detecting circulation ".
At step S312, control setup 110 will add " 1 " in the parameter N of expression detection cycle number.Because be cleared in step S204 parameter N, so add that 1 later parameter N is " 1 ", represent to detect and circulated 1 time.
At step S314, control setup 110 judges whether N is more than or equal to 2.In the present embodiment, for the error in judgement that prevents that fortuitous phenomena from bringing, every startup diagnostic program that once throws light on, will carry out 2 times and detect circulation.So in the time that N is less than 2, illumination diagnostic program will turn back to the step S206 of Fig. 2, starts to detect for the second time circulation.
In the time that the step of circulation for the second time reaches S312, in the parameter N that becomes " 1 ", to add " 1 ", parameter N will become " 2 ", illustrate that completing 2 times detects circulation.This has met the condition of step S314, so illumination diagnostic program will enter step S316.
At step S316, whether control setup 110 will judge in 2 times are detected circulation the continuous fault of grade B to E that occur for 2 times.If the continuous fault of grade B to E that occur for 2 times in 2 times are detected circulation, illumination diagnostic program will enter step S318.When not detecting out of order time, illumination diagnostic program will not made any reaction and finish.When only detecting the fault of grade A, be also like this.This is that the of short duration brightness at the initial stage of may just lighting a lamp changes, and can not have influence on normal lighting because be defined as the fault of " A " grade.But as with reference to record, at step S310, the signal of grade A is also stored in memory storage 112.
At step S318, control setup 110, by being notified this fault level and point to the link of server 120 to the portable terminal 116 of service personnel and the administrative center 118 that manages this elevator by communication device 114, then finishes the diagnostic program that throws light on.
Fig. 5 is the schematic diagram of the signalling trouble that sends to portable terminal of lift cage illumination diagnostic device of the present invention.。Signalling trouble has been pointed out the position at the elevator place of et out of order, and the grade of fault detects the time of fault and can observe the link of pick up camera 106 captured images.
In the present embodiment, no matter whether above-mentioned illumination diagnostic program starts, as long as the state of pick up camera 106 in photographic images, control setup 110 just uploads to image captured pick up camera 106 in the server 120 being connected with network 122 in real time.Service personnel is by clicking the link providing in signalling trouble, and both access services devices 120 at once, watch the captured image of pick up camera 106, thereby grasp the latest development of car 102 inside, directly confirm light failure.
Fig. 6 represents to utilize in the present embodiment portable terminal to confirm the schematic diagram of situation in lift car.For example, as shown in Figure 1, there are two lamps car 102 inside as illumination 104, and the lamp in left side extinguishes because of fault, only has a lamp bright light on right side.At this moment, utilize portable terminal 116 to observe the situation of lift car 102 inside, will be as shown in Figure 6, bright although the right side of car 102 also keeps, the gloom that left side is but illustrated by the broken lines.
Illumination diagnostic program shown in Fig. 2 and Fig. 3 can be carried out 1 time every certain time interval, such as carrying out 1 time every 1 hour.That is, carry out after 1 illumination diagnostic program, 1 hour with interior this program of no longer carrying out, and when after 1 hour, as long as meet all conditions of step S202, just again carry out 1 time this illumination diagnostic program.
This illumination diagnostic program can be also in the time again meeting all conditions of step S202, to carry out 1 time.That is, carry out after 1 illumination diagnostic program, as long as the condition of step S202 is not broken, just no longer carries out this program, and after the condition of step S202 is broken, while meeting again all conditions of step S202, carry out illumination diagnostic program 1 time.Certainly, the interval of execution illumination diagnostic program can also adopt other method to decide as required.
Because lift cage illumination diagnostic device of the present invention sends to signalling trouble portable terminal 116 and the administrative center 118 of service personnel simultaneously, and the link that service personnel provides from signalling trouble, access services device 120 at once, directly observe the inside of car 102, the present situation of judgement illumination 104, can take appropriate measures service personnel in time.In the time that service personnel is not taked corresponding measure in time, administrative center can send instruction to service personnel, and carries out supervision and management.In contrast, if only signalling trouble is dealt into administrative center 118, then indicate service personnel to take measures by administrative center 118, may bring due to the existence of this intermediate link the hysteresis of time, cause delaying of trouble-shooting.
The fault of illumination is subdivided into 5 grades of A to E by lift cage illumination diagnostic device of the present invention.Can say that grade E is major failure, grade D is comparatively serious fault, and grade C is lighter fault, and grade A and B are the omens of fault.Lift cage illumination diagnostic device of the present invention just sends signalling trouble at the fault premonition stage of grade B, makes service personnel both can take the measures such as replacing before the illumination of car does not also completely lose function.
Certainly it is only an example that the fault level that above-described embodiment is introduced is distinguished, and can carry out various changes to the condition of distinguishing fault level as required.
In addition, lift cage illumination diagnostic device of the present invention is by the brightness value L detecting and original intensity value L
0compare, the scintillation that the fluorescent lamp that moment brightness changes occurs therefore not only can be detected, can also detect such as the dimmed deteriorated phenomenon gradually such as LED (light-emitting diode) light source.
The present invention is not limited to the above embodiments, and it also comprises various variation.For example, in the above-described embodiment, for the ease of understanding, the present invention has been done to detailed explanation, but be not to limit the invention in the embodiment with all above-mentioned component parts.In addition, the part technical characterictic of certain embodiment can be replaced into the technical characterictic in other embodiment, the part composition of certain embodiment can also be appended in other embodiment.In addition, the part of the composition to each embodiment, can append, replace or delete by other technologies feature.
That in figure, draws controls or various lines and the arrow of communication for representing, is only a part of thinking in the above description necessary, is not to have drawn all expression control of relative assembly or equipment or line and the arrow of communication.In fact, can think that nearly all relevant component part is all interconnective.
Claims (1)
1. a lift cage illumination diagnostic device, comprising: the pick up camera of taking the cab interior that is provided with illumination;
Detect the detecting device of the brightness of the image of described shot by camera,
It is characterized in that:
Have
Memory storage, it stores testing conditions and the original intensity value of described detecting device;
Control setup, the brightness value that it detects described detecting device under described testing conditions and original intensity value contrast, based on this comparing result, the illumination of described car is diagnosed, and by the image upload of described shot by camera in server connected to the network; And
Communication device, it can carry out communication with exterior terminal,
In the time occurring that the luminance difference of comparing result is greater than the phenomenon of designated value, the frequency of described control setup based on there is this phenomenon, determine the fault level of illumination, notify the link of this fault level and the described server of sensing by described communication device to portable terminal.
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| CN107662868A (en) * | 2016-07-29 | 2018-02-06 | 奥的斯电梯公司 | Monitoring system, passenger transporter and its monitoring method of passenger transporter |
| CN107662868B (en) * | 2016-07-29 | 2022-01-04 | 奥的斯电梯公司 | Monitoring system of passenger conveyer, passenger conveyer and monitoring method thereof |
| CN107337044A (en) * | 2017-08-07 | 2017-11-10 | 广州日滨科技发展有限公司 | The detection method and system of elevator components failure |
| CN107601199A (en) * | 2017-08-07 | 2018-01-19 | 广州日滨科技发展有限公司 | The detection method and system of elevator components failure |
| CN107337044B (en) * | 2017-08-07 | 2019-10-29 | 日立楼宇技术（广州）有限公司 | The detection method and system of elevator components failure |
| CN107601199B (en) * | 2017-08-07 | 2019-12-10 | 日立楼宇技术（广州）有限公司 | method and system for detecting elevator component fault |
| US10870556B2 (en) | 2017-12-12 | 2020-12-22 | Otis Elevator Company | Method and system for detecting elevator car operating panel condition |
| CN110015600A (en) * | 2018-01-02 | 2019-07-16 | 奥的斯电梯公司 | Use the elevator examination of the preset auto-sequencing of camera |
| CN110015600B (en) * | 2018-01-02 | 2022-04-01 | 奥的斯电梯公司 | Automatic sequencing elevator inspection using camera presets |
| CN108861973A (en) * | 2018-05-08 | 2018-11-23 | 江苏威尔曼科技有限公司 | A kind of lift cage illumination system of usable cell phone application tune color and brightness |
| CN110620921A (en) * | 2019-10-22 | 2019-12-27 | 浙江蓝鸽科技有限公司 | Classroom equipment fault detection method and equipment thereof |
| CN111908289A (en) * | 2020-08-06 | 2020-11-10 | 日立楼宇技术（广州）有限公司 | Method, device and equipment for detecting illumination in elevator car and storage medium |
| CN111908289B (en) * | 2020-08-06 | 2022-03-04 | 日立楼宇技术（广州）有限公司 | Method, device and equipment for detecting illumination in elevator car and storage medium |
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