CN103231962A - Diagnosis and early-warning system for elevator faults - Google Patents
Diagnosis and early-warning system for elevator faults Download PDFInfo
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- CN103231962A CN103231962A CN2013101799017A CN201310179901A CN103231962A CN 103231962 A CN103231962 A CN 103231962A CN 2013101799017 A CN2013101799017 A CN 2013101799017A CN 201310179901 A CN201310179901 A CN 201310179901A CN 103231962 A CN103231962 A CN 103231962A
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Abstract
The invention provides a diagnosis and early-warning system for elevator faults. The diagnosis and early-warning system comprises a sound and vibration signal acquirer and a sound and vibration signal analysis server, wherein the sound and vibration signal acquirer is arranged in an elevator car, connected with the sound and vibration signal analysis server and sends acquired sound signals and/or vibration signals to the sound and vibration signal analysis server; and the sound and vibration signal analysis server processes the sound signals and/or vibration signals. According to the diagnosis and early warning system for elevator faults, hidden faults of an elevator can be discovered as soon as possible, sufficient maintenance time is saved, and heavy losses are avoided. The running safety and reliability of elevators in an area range can be greatly improved once the diagnosis and early warning system is applied to the elevator Internet of Things field.
Description
Technical field
The present invention relates to lift running safety monitoring technique field, particularly the technical field that security monitoring and early warning are carried out in operation to elevator.
Background technology
Along with increasing of urban skyscraper, increasing elevator has dropped into operation.Elevator is when offering convenience to people, and elevator faults has also produced influence to people's life security.33 of elevator accidents took place in the whole nation altogether in 2007, accounted for 13% of special equipment safety misadventure sum, and wherein the elevator fatal accident is 22, caused 25 people's death, 10 people's severe injuries; 38 of elevator accidents took place in 2008; 2010, China had the serious elevator accident of record just to surpass 44, dead 43 people.
In order to guarantee elevator safety failure-free operation, people's design and place in operation multiple safety measure.Wherein, generally a kind of safety measure of Cai Yonging is at elevator control monitor unit to be set, and monitors the operation conditions of elevator in real time, in time sends alarm message after Lift out of order, so that the elevator management personnel in time rescue.
Existing elevator safety surveillance and control measure often with the video image of elevator, or from the operating data that elevator(lift) machine room collects, is transferred on the monitor supervision platform of residential quarter watch house or elevator management unit.These technological means, often data quantity transmitted can be very big, the dedicated network that needs optical fiber and so on, construction cost is high, and, these technological means, all be when fault takes place or after taking place, just to send alarm message, this moment, fault took place, and the time of leaving people's rescue under a lot of situations for is very little, often can not in time stop the generation of infringement.Can adopt technological means cheaply, find even predict in advance the fault of elevator operation early, safeguard so that people have ample time, avoid big infringement to take place, become a difficult problem in lift running safety monitoring field.
Summary of the invention
In order to find, predict the fault of elevator operation early, avoid elevator faults to cause big infringement to take place, the invention provides a kind of elevator faults diagnosis and forewarn system.
Technical scheme of the present invention is as follows:
Elevator faults diagnosis and forewarn system comprise sound and vibration signal collector, sound and analysis of vibration signal server, and described sound and vibration signal collector are arranged on lift car; Described sound is connected with the analysis of vibration signal server with described sound with vibration signal collector, and the sound and/or the vibration signal that collect to described sound and the transmission of analysis of vibration signal server; Described sound and analysis of vibration signal server are handled described sound and/or vibration signal.
Described sound and analysis of vibration signal server comprise the processing of described sound and/or vibration signal: described sound and/or vibration signal are carried out analysis and judgement, draw the conclusion whether described sound and vibration signal collector place elevator exist fault or potential faults.
Described sound and vibration signal collector are arranged on the phone of described lift car, and carry out the transmission of described sound and/or vibration signal by the communication line of described phone.
It is one of following that described phone comprises at least: elevator sedan-chair top phone, lift car phone.
Described elevator faults diagnosis and forewarn system also comprise sound and vibration signal data bank, and described sound and vibration signal data bank are used for stored sound and/or vibration signal data; Described sound is connected with the vibration signal data bank with described sound with the analysis of vibration signal server.
Described elevator faults diagnosis and forewarn system also comprise upper strata elevator safety monitoring server, and described sound is connected with described upper strata elevator safety monitoring server with the analysis of vibration signal server; Described upper strata elevator safety monitoring server receives the information of described sound and the transmission of analysis of vibration signal server.
Described sound and analysis of vibration signal server record corresponding elevator sign after drawing the conclusion of Lift out of order.
Described sound and vibration signal collector comprise acceleration pick-up.
Described sound and vibration signal collector are external sound and vibration signal collector, are arranged on described elevator car roof.
Described external sound and vibration signal collector and described sound and analysis of vibration signal server carry out communication with wireless mode.
Technique effect of the present invention:
Widely " an extra large grace rule " of approval is arranged in security fields, and namely each plays the behind of major accident, and 29 minor accidents and 300 not accomplished tendencys and 1000 accident hidden danger must be arranged.That is to say that the fault one that elevator takes place fixes on the preceding sign to some extent of fault generation.Listen to the sound of inside of human body and diagnose the state of an illness similar with sound-scope with the doctor, for this electromechanical appliance of elevator, in fact, sound or vibration signal can reflect " health degree " of elevator equally.The potential faults of elevator such as wear-out of a bearing and so on, occurs in elevator inside, can't directly see, it is clear perhaps to be not easy directly to detect by an unaided eye, and tends to delay the best opportunity of maintenance, and the sound of elevator or vibration then are presentations very intuitively.Experienced maintenance man is when detecting elevator, tend to sit on uppermost storey from lowest floor, sit on lowest floor from uppermost storey again, conscientiously listen in this course, according to the sound of hearing just can judge elevator steel rope, lead accessories such as boots, door cutter, main frame, velocity limiter whether problem arranged, and the shake of feeling according to self can be judged the mode of operation of the accessory such as frequency converter, coder of elevator.
Elevator faults diagnosis of the present invention and forewarn system are gathered the operating sound of elevator and/or vibration signal by sound and vibration signal collector are set at lift car, and with the sound that collects and/or vibration signal sends to sound and the analysis of vibration signal server is handled, so that the sound that therefrom notes abnormalities or vibration signal, thereby judge whether omen in bad order.When the omen of fault occurs, often also have considerable time from the real generation of fault, thereby people can in time overhaul and safeguard, avoid the generation of extensive damage, have realized purpose of the present invention according to described omen to elevator.
The present invention is applied to safety and the reliability of elevator operation in the very big lifting region scope of elevator Internet of Things field meeting.
Description of drawings
Fig. 1 is the schematic diagram of first example of elevator faults diagnosis of the present invention and forewarn system.
Fig. 2 is the schematic diagram of second example of elevator faults diagnosis of the present invention and forewarn system.
Fig. 3 is the schematic diagram of the 3rd example of elevator faults diagnosis of the present invention and forewarn system.
Fig. 4 is elevator industry five side's intercommunications mechanism schematic diagram.
The specific embodiment
Before technical scheme of the present invention is elaborated, the technology that wherein relates to is described.
Sound and vibration signal collector refer to gather acoustic signals and/or the sensor of vibration signal, for example acceleration pick-up that the soruce of vibration vibration produces.
Sound and analysis of vibration signal server refer to the computing machine that can handle, analyze acoustic signals and/or vibration signal that soruce of vibration vibration produces.
Sound and vibration signal data bank refer to store the data bank of acoustic signals and/or vibration signal.
The phone of lift car refers to be arranged on the phone on the lift car, comprises elevator sedan-chair top phone, lift car phone.
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated.
The elevator faults diagnosis that Fig. 1 shows and the example of forewarn system comprise some sound and the vibration signal collector that is arranged on lift car, and the frame of broken lines among Fig. 1 is illustrated in the scope of lift car.The elevator faults diagnosis also comprises sound and the analysis of vibration signal server that is connected with vibration signal collector with sound with forewarn system.Sound and vibration signal collector mainly comprise acceleration pick-up, gather sound and/or vibration signal in the lift car.Why sound and vibration signal collector are arranged on lift car, major cause is that sound or generation of vibration all derive from the motion of elevator, and the nucleus movement parts in the elevator are exactly lift car, in addition, sound and vibration signal collector can arrive most positions of elevator with the motion of lift car, and the sound of appropriate section and/or vibration signal all can collect.To the sound that collects and/or vibration signal amplify with primary treatment such as filtering after, can be directly with the analog system transmission, be transferred to sound and analysis of vibration signal server again after also can being converted to digital signal.Sound and/or the vibration signal of the lift car that sound and analysis of vibration signal server reception sound and vibration signal collector collect are handled sound and/or vibration signal.Sound and analysis of vibration signal server have multiple to the processing mode of sound or vibration signal, comprise that signal shows or the digitized processing of signal or relatively waiting of digitized signal.Sound and analysis of vibration signal server can be for the judgements of manually carrying out fault or potential faults to the result of sound or vibration signal, also can utilize Computer Analysis software sound or vibration signal are analyzed and to be judged whether found fault or potential faults and the conclusion of reporting to the police.The potential faults of mentioning among the present invention comprises the degree of fatigue (for example wear-out of a bearing degree) that utilizes the elevator components that sound or vibration signal judge, thereby draws the conclusion that there is potential faults in elevator.
Sound and analysis of vibration signal server are analyzed with the ways and means of judging sound or vibration signal and are mainly contained: wavelet analysis, neural network, hidden Markov model, Hilbert Huang, genetic algorithm etc.Before diagnosing, collect the data of a large amount of primary fault vibration signals and sound signal and come the training signal sample pattern.Namely at first set up vibration signal and the audio signal database of a lift car, comprised the performance state of elevator under various faults.Because the breakdown signal of elevator is typical unstable signal, and wavelet analysis just is being fit to analyze unstable signal, wavelet analysis can effectively be removed the noise jamming in the breakdown signal, extracts the breakdown signal feature, for the accuracy of trouble diagnosing provides the failure-free assurance.For example, the various sound that lift facility sends all are worth in-depth study, and the voice that elevator passenger is chatted in car are diagnosed elevator faults, often are exactly that a kind of N/R disturbs or noise, can utilize wavelet analysis that people's sound is rejected away.
The structural principle of the elevator faults diagnosis that Fig. 2 shows and forewarn system and elevator faults shown in Figure 1 diagnosis and forewarn system is basic identical, and difference just is also to be provided with sound and vibration signal data bank.Sound is connected go forward side by side line data communication with sound with the analysis of vibration signal server with the vibration signal data bank.Sound and vibration signal data bank stored sound or vibration signal data comprise sound or the vibration signal of various typical faults or potential faults.Sound and analysis of vibration signal server are compared the sound of processing or the typical data in vibration signal data and sound and the vibration signal data bank, if the fault of preserving in the sound that collects or vibration signal and sound and the vibration signal data bank or sound or the vibration signal of potential faults are consistent, then judge elevator meeting et out of order or have potential faults, send alarm message.Certainly, the sound of sound and analysis of vibration signal server process or vibration signal are through being verified as sound or the vibration signal of new typical fault or potential faults, then this sound or vibration signal can be deposited in sound and the vibration signal data bank and be preserved, and enrich and promoted the judgement of elevator faults diagnosis and forewarn system.
Sound and analysis of vibration signal server record corresponding et out of order elevator sign after drawing the conclusion of Lift out of order, this is designated the unique identification of elevator in sound and the analysis of vibration signal server monitoring scope.This sign is corresponding with brand and the model of elevator at least, certainly, also can be corresponding with other attribute informations of elevator, for example set-up time, the unit of maintenance etc.Above-mentioned elevator sign can realize by the structure design of sound and vibration signal data bank with the corresponding of elevator attribute information, identifies elevator related with the elevator attribute information in sound and vibration signal data bank.
The elevator sign meaning corresponding with the elevator attribute information is: the post-processed situation of 1, following the tracks of elevator faults; 2, being convenient to elevator manufacturer recalls the elevator that similar failure problems takes place; 3, be convenient to elevator manufacturer typical fault is proposed solution, be beneficial to the subsequent product technology upgrading.
The structural principle of elevator faults diagnosis shown in Figure 3 and forewarn system and elevator faults shown in Figure 2 diagnosis and forewarn system is basic identical, and difference only is that sound also is connected the line data communication of going forward side by side with upper strata elevator safety monitoring server with the analysis of vibration signal server.Upper strata elevator safety monitoring server receives the data message of described sound and the transmission of analysis of vibration signal server.Elevator faults diagnosis and forewarn system shown in Figure 3 have bigger supervision scope, for example sound and analysis of vibration signal server are arranged on the elevator management machine room (residential quarter watch house) of residential quarter, sound also is connected with citywide elevator safety monitoring server (being upper strata elevator safety monitoring server) with the analysis of vibration signal server simultaneously, send this residential quarter elevator running condition to citywide elevator safety monitoring server, if emergency situation can be transferred the citywide resource and assist.
At elevator industry, the pressure standard that five side's intercommunications are arranged, be that residential quarter watch house phone must link to each other with elevator(lift) machine room phone, elevator sedan-chair top phone, lift car phone, elevator shaft bottom phone, intercommunication one to one, also intercommunication simultaneously in many ways, this is the coercive measure of taking for the convenience of elevator installation and maintenance.Fig. 4 has shown the principle of five side's intercommunications, and namely residential quarter watch house phone and elevator(lift) machine room phone, elevator sedan-chair top phone, lift car phone, elevator shaft bottom phone are interconnected, can converse.
Fig. 1 can also carry out following scheme to example shown in Figure 3 and change, to obtain corresponding technique effect.
Sound and vibration signal collector are arranged on the phone of described lift car, and carry out the transmission of sound or vibration signal by the communication line of described phone.It is one of following that described phone comprises at least: elevator sedan-chair top phone, lift car phone.Sound of the present invention and vibration signal collector are arranged on the above-mentioned phone and (only need simply transform existing phone circuit and get final product), and give sound and the analysis of vibration signal server that is arranged on the residential quarter watch house by the communication line transmission signal of these phones.Take full advantage of the elevator existing facility like this and implement technical scheme of the present invention, with low cost.
Certainly, for the consideration that obtains aspects such as better effectiveness, also sound and vibration signal collector can be arranged to external sound and vibration signal collector.Be that sound and vibration signal collector are not arranged in the phone of lift car, but the mode of taking to be independent of described phone is installed configuration.Preferred scheme is that external sound and vibration signal collector are arranged on described elevator car roof, and is adjacent with elevator sedan-chair top phone, the I﹠M of this convenient external sound and vibration signal collector.This external sound and vibration signal collector can be utilized the signal transmission line of the phone of existing lift car, also can adopt independently, exclusive signal transmission line.Certainly, development along with wireless technology, any following data transmission link all can adopt Radio Transmission Technology to realize: between sound and vibration signal collector and sound and the analysis of vibration signal server, between sound and analysis of vibration signal server and sound and the vibration signal data bank, between sound and analysis of vibration signal server and the upper strata elevator safety monitoring server.
It should be noted that the above only for preferred embodiment of the present invention, be not so limit scope of patent protection of the present invention that the present invention can also adopt equivalent technologies to replace.So the equivalence that all utilizations specification sheets of the present invention and diagramatic content are done changes, or directly or indirectly apply to other correlative technology fields and all in like manner all be contained in the scope that the present invention contains.
Claims (10)
1. elevator faults is diagnosed and forewarn system, and it is characterized in that: comprise sound and vibration signal collector, sound and analysis of vibration signal server, described sound and vibration signal collector are arranged on lift car; Described sound is connected with the analysis of vibration signal server with described sound with vibration signal collector, and the sound and/or the vibration signal that collect to described sound and the transmission of analysis of vibration signal server; Described sound and analysis of vibration signal server are handled described sound and/or vibration signal.
2. according to the described elevator faults diagnosis of claim 1 and forewarn system, it is characterized in that: described sound and analysis of vibration signal server comprise the processing of described sound and/or vibration signal: described sound and/or vibration signal are carried out analysis and judgement, draw the conclusion whether described sound and vibration signal collector place elevator exist fault or potential faults.
3. according to claim 1 or 2 described elevator faults diagnosis and forewarn systems, it is characterized in that: described sound and vibration signal collector are arranged on the phone of described lift car, and carry out the transmission of described sound and/or vibration signal by the communication line of described phone.
4. according to the diagnosis of the described elevator faults of claim 3 and forewarn system, it is characterized in that: described phone comprises one of following at least: elevator sedan-chair top phone, lift car phone.
5. according to the described elevator faults diagnosis of claim 2 and forewarn system, it is characterized in that: also comprise sound and vibration signal data bank, described sound and vibration signal data bank are used for stored sound and/or vibration signal data; Described sound is connected with the vibration signal data bank with described sound with the analysis of vibration signal server.
6. according to the described elevator faults diagnosis of claim 5 and forewarn system, it is characterized in that: also comprise upper strata elevator safety monitoring server, described sound is connected with described upper strata elevator safety monitoring server with the analysis of vibration signal server; Described upper strata elevator safety monitoring server receives the information of described sound and the transmission of analysis of vibration signal server.
7. according to the described elevator faults diagnosis of claim 6 and forewarn system, it is characterized in that: described sound and analysis of vibration signal server record corresponding elevator sign after drawing the conclusion of Lift out of order.
8. according to claim 1 or 2 described elevator faults diagnosis and forewarn systems, it is characterized in that: described sound and vibration signal collector comprise acceleration pick-up.
9. according to claim 1 or 2 described elevator faults diagnosis and forewarn systems, it is characterized in that: described sound and vibration signal collector are external sound and vibration signal collector, are arranged on described elevator car roof.
10. according to the described elevator faults diagnosis of claim 9 and forewarn system, it is characterized in that: described external sound and vibration signal collector and described sound and analysis of vibration signal server carry out communication with wireless mode.
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