CN1032303C - Elevator monitoring diagnostic apparatus and method thereof - Google Patents
Elevator monitoring diagnostic apparatus and method thereof Download PDFInfo
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- CN1032303C CN1032303C CN91108912A CN91108912A CN1032303C CN 1032303 C CN1032303 C CN 1032303C CN 91108912 A CN91108912 A CN 91108912A CN 91108912 A CN91108912 A CN 91108912A CN 1032303 C CN1032303 C CN 1032303C
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- elevator
- monitoring diagnostic
- monitor
- elevator car
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Signal Processing (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
In an elevator monitor diagnosis system, a remote elevator monitor diagnosis device is usually provided therein for monitoring the operation of an elevator control station arranged in each building, and a monitor center device connected with the remote elevator monitor diagnosis device is provided therein for centralized control of each elevator in each building. In the elevator monitor diagnosis device, a camera and an image compressing device are equipped inside an elevator. The image data from the image compressing device and the audio data from a communication device in the elevator are transmitted from the elevator monitor diagnosis device to the monitor center device by time-division technique via a telephone wire. As a result, the telephone wire can effectively utilize the elevator and improve the safety of the elevator.
Description
The present invention relates to a kind of apparatus and method of elevator monitoring diagnostic, it can be by monitoring the safety that elevator car in-to-in image improves passenger in the elevator at caretaker room or central monitoring position.
In prior art, publication number is that 63-12579 Japanese Patent has disclosed a kind of device that transmits elevator car in-to-in image, when detecting elevator car in-to-in abnormal condition, indoor by this elevator car in-to-in image of television monitoring by the elevator management in the building of this elevator is installed.Yet the building that the elevator management chamber arranged seldom.In most of the cases, the elevator management personnel are also few for number.Yet present case is to prevent that the needs of criminal offence in the elevator car are but very urgent.
In addition, publication number is that 59-22869 Japanese Patent has disclosed a kind of device, and this device comes the operation conditions of concentrated area, distant surveillance elevator with telephone wire.The main purpose of this device is to want to improve the maintaining efficient of the hardware of apparatus for controlling elevator.As for passenger's safety, only consider to use the interior inside intercommunication communicator of elevator car that directly is connected with the elevator monitoring center to carry out the sound conversation at the most.
At present, passenger's safe requirement is very urgent in the assurance elevator car.But, owing to be short of hands, reason such as personnel's reduction, to each building that elevator is installed by television monitor or similarly device monitor that the situation in the elevator car becomes very difficult.
Though above-mentioned prior art can improve each elevator car in-to-in safety that the building of elevator is installed, and has the too big problem of expense.
Therefore, the objective of the invention is to merge in the distant surveillance diagnostic system of apparatus for controlling elevator and the elevator monitoring diagnostic devices and methods therefor that can guarantee elevator user's safety with the maintenance efficient that diagnotic elevator diagnostic device of phone bundle of lines distant surveillance and the interconnective way of central monitoring position device provide a kind of one side can improve apparatus for controlling elevator hardware simultaneously again by the function that will send elevator car in-to-in image.
In remote elevator monitoring diagnostic system, the transmission of elevator monitoring diagnostic data and finish by using telephone wire via the conversation of the intercommunication communicator in the elevator.
Therefore, the transmission of the image in the elevator should not hinder the transmission of the diagnostic data that monitors gained in this monitoring diagnostic system and the conversation of intercommunication communicator.Pictorial information not only can not be defeated in phone line with analog information, and iff being that analog information is carried out digitalisation and do not taked other measures, that pictorial information has just become a large body of facts.So if pictorial information is modulated by a modem and sent on a telephone wire, then the transmission time is wanted 1 to 2 minute.Therefore, between elevator car and the central monitoring position device, the conversation contact by inner intercommunication communicator will be interrupted 1 to 2 minute during pictorial information transmits.
When elevator breaks down, when the passenger is closed in elevator, under this abnormal situation, concerning the passenger, even the contact of one to two minute dropped calls all is considered to surpass admissible psychological limit.Therefore, on a telephone wire with the time () to divide (cutting) system to transmit original pictorial information, monitoring diagnostic data and intercommunication conversation sound be unpractiaca.
Be enough to play the effect that guarantees passenger safety owing to it is generally acknowledged elevator car in-to-in still image, so the still image Information Compression is arrived one of each pixel (bit).As a result, transmitting the required time of an images picture can shorten to about 10 to 20 seconds.When the voice data of this pictorial information, elevator monitoring diagnostic data and communicator together on same telephone wire with the time () when dividing (cutting) system to send, the time that the conversation between elevator car inside and the central monitoring position is interrupted can shorten.The psychological sense of insecurity of passenger in the elevator car is alleviated.
When the image in the elevator car sends to the elevator monitoring diagnostic device, compressed by digitalisation by an image compression device that is arranged in the elevator car from the picture intelligence of the photographic camera in the elevator car.Like this, the transmission of picture intelligence can be adopted twisted-pair cable and not need to use coaxial cable.Be worthwhile so economically.
These and other purposes, features and advantages of the present invention can be more clear by the detailed description of with reference to the accompanying drawings preferred embodiment of the present invention being done.
Fig. 1 is the block diagram of an elevator monitoring diagnostic device of the present invention;
Fig. 2 is the block diagram of remote elevator monitoring diagnostic device;
Fig. 3 is the structural representation of image compression device;
Fig. 4 is the structural representation of image regenerating device;
Fig. 5 is the structural representation of central monitoring position device;
Fig. 6 is the scheme drawing that data transmit control agreement or agreement;
Fig. 7 is the structural representation of visual linear prediction error transfer system; And
Fig. 8 is the scheme drawing of linear image model.
A description will be given of an embodiment in accordance with the present invention with reference to the accompanying drawings.
Fig. 1 is the constructional drawing of the system of image in the whole transmission elevator car of expression.Fig. 2 is the constructional drawing of the hardware of expression elevator monitoring diagnostic device.Fig. 3 is arranged on the constructional drawing of the hardware of the image compression device in the elevator car.Fig. 4 is arranged on the constructional drawing of the hardware of the image compression device in the elevator management chamber.Fig. 5 is the constructional drawing of the hardware of expression central monitoring position device.
Among Fig. 1, sequence number (numbering) 101 expression elevator monitoring diagnostic devices; Sequence number 171 and 172 is represented elevator control desk (dish) respectively, can monitor work (operation) situation of elevator by its elevator monitoring diagnostic device 101.Elevator monitoring diagnostic device 101 interconnects with all elevator control deskes 171 and 172 dedicated transmission by elevator 10.Between as the elevator monitoring diagnostic device 101 of control station and all elevator control deskes 171,172, carry out writing to each other of 1:N as slave station.Elevator monitoring diagnostic device 101 passes the operation information of logical line reception from a plurality of elevator control deskes 171,172 by the special use of elevator 10, thereby monitors the operation conditions of elevator control desk 171,172, and detects abnormal condition.
Sequence number 131,132 is represented the subordinate intercommunication communicator in the elevator car; Sequence number 161 is represented the indoor main communicator of elevator management.Subordinate communicator 131 with 132 and main communicator 161 link to each other with elevator monitoring diagnostic device 101 by intercommunication conversation control line 20.Elevator monitoring diagnostic device 101 monitors whether the call button of subordinate communicator 131 or 132 is pressed.If the main communicator 161 of caretaker room does not respond the pressing of call button of subordinate communicator 131 or 132 in given time or longer time, so just suppose that operating personal do not answer from the emergency call in the elevator car and judge that urgency traffic requires to take place.
Sequence number 181 is represented the central monitoring position device.Central monitoring position device 181 and elevator monitoring diagnostic device 101 are connected to each other by telephone wire 50.
After elevator monitoring diagnostic device 101 detects the unusual of elevator control desk 171 and 172 and is required by the urgency traffic that the subordinate communicator 131 or 132 in the lift car sends, it uses modem or similar device to modulate and carries out data transmission and conversation contact just by telephone wire 50.Telephone wire 50 is a kind of connections that are used for carrying out the speech contact, the line of for example general phone-specific line and so on.
When very (promptly) from the subordinate communicator 131 in the elevator car or 132, conversation required to occur, the speech contact was just carried out sending between telephone transmitter 192 threes of subordinate communicator 131 or 132, main communicator 161 and elevator monitoring center.The operating personal of the passenger in elevator car and the caretaker room in building has been discussed after the action that may take, and the staff at elevator monitoring center just can contact or get in touch with regard to the action of being about to take with the passenger in the elevator car.
When detecting elevator control desk 171 or 172 unusual, unusual content situation is sent on the central monitoring position device 181 at elevator monitoring center automatically by the transmission of the data of modulating through (modem) of telephone wire 50.In addition, can regularly conduct interviews (contact) to diagnose running state of elevator control desk 171 and 172 by telephone wire 50 by central monitoring position device 181 to elevator monitoring diagnostic device 101.
Although what draw among Fig. 1 is the situation of two elevators, one, three or more elevators are fine too.
Fig. 6 is Data Transmission Controlling agreement or the agreement between expression elevator monitoring diagnostic device 101 and the central monitoring position device 181.What Fig. 6 represented is situation about transmitting continuously from the detected abnormal elevator and the detected intercommunication communicator urgency traffic request of elevator monitoring diagnostic device 101.
In Fig. 6, identification signal ID
1Be to be assigned to the number of elevator monitoring diagnostic device 101 specially by the signal of further encipher.Answer signal ID
2It is the signal that identification signal is compiled to password.Then is identical to elevator monitoring diagnostic device 101 with the cryptographic algorithm that central monitoring position device 181 adopts.Identification signal ID
1With answer signal ID
2Exchanging, is in order to confirm that above-mentioned two signals are in the consolidated network system, and 101 are terminating sets, the 181st, and the central monitoring position device.This exchange was both carried out under the situation that sends (information) from elevator monitoring diagnostic device 101, also carried out under situation about sending with central monitoring position device 181.This process is called identification-answer process.In this process, elevator monitoring diagnostic device 101 always sends an identification signal earlier.When central monitoring position device 181 normally received an identification signal, it directly sent identification ACK (affirmation) signal, again with identification signal ID
1Encipher is then as answer signal ID
2Send to elevator monitoring diagnostic device 101.When elevator monitoring diagnostic device 101 normally receives answer signal ID
2The time, if this answer signal ID
2Be to identification signal ID
1Correct answer, elevator monitoring diagnostic device 101 is just beamed back one and is answered ACK (affirmation) signal so.Like this, can conclude that discerning answer gets in touch normal termination.On the other hand, 181 in central monitoring position device is concluded that identification is answered and is got in touch normal termination by directly receiving above-mentioned answer ACK (affirmation) signal.
After this identification answer process finished, the data that abnormal elevator detects data and so on promptly began transmission.
After this, carry out the speech contact if necessary, a side who then claims sends communication pattern change signal SI.A side who receives communication pattern change signal S1 then beams back an ACK (affirmation) signal and sends communication pattern change signal S1.And then when it received ACK (affirmation) signal that the other side's acknowledgment signal received, communication pattern just forwarded the voice communication state to.
When data transmission must be carried out, be altered to data transmission state by sending this communication mode change signal S1 again during the voice communication state.
In Fig. 1, sequence number 111 and 112 is represented the image compression device that is arranged in the elevator car respectively.Photographic camera 121 links to each other with 112 with image compression device 111 with 42 by coaxial or other picture transmission cable 41 respectively with 122.
If the image in the elevator car is in order to ensure the safety in the envelope, it is generally acknowledged that so employing black-and-white image and pixel count were enough already near 128 * 120.As for the quantization digit of each pixel,, then need 7 to 8 if ganmma controller (light deeply) progression is assumed to 128 to 256.Like this, pixel is that 128 * 120 gray scales are that the quantity of information of 128 image is near 100KB.If this information transmits to carry out remote elevator monitoring by telephone wire, so, even supposition modulation speed is 1200bps, the transmission time also needed for 90 seconds.
In elevator car, there are unusual generation and subordinate intercommunication communicator 131 or 132 to require under the situation of urgency traffic, if the image in the elevator car by subordinate communicator 131 or 132 and the handset 192 of central monitoring position device between the telephone wire of transmission sound transmit and not have to compress, so, voice communication will interrupt about 90 seconds, thereby cause the psychology of the passenger in the elevator uneasy.
So the device as pictorial information in the transmission envelope has adopted the bidimensional linear prediction method that image is carried out bidimensional prediction and transmission predicated error.
The method of communicating predicted error is described below.
The structure of Fig. 7 presentation image linear prediction error transmission system.Fig. 8 represents the linear model of bidimensional image.The gray scale of a pixel P of bidimensional image can be represented by following predictive equations:
P＝αA＋βC＋γD(1)
Wherein, α, beta, gamma is represented predictive coefficient, A, B, C represent the gray scale or the dark light grade of each pixel respectively.
When transmitter side used linear prediction that the error quantization of predictor and actual value is compressed pictorial information, pictorial information was compressible to 1/7 to 1/8 so.That is to say that pictorial information can be compressed to average 1 of each pixel (bit).
When pictorial information adopted this mode to compress, the image of one 128 * 120 pixel approximately was 2KB information (amount).If use the modulation speed transmission of telephone wire with 1200bps, then the transmission of a picture approximately needed for 13 seconds.
So, in this case, even the subordinate intercommunication communicator 131 in the cage ladder or 132 with the handset (earphone) 192 of central monitoring position between conversation carry out, communication pattern also can forward data-transmission mode to from talking state, and picture transmission less hinders basically and converses.
As a result, by use the communication pattern switching signal on single telephone wire, switch and when adopting () branch (cutting) method just can finish simultaneously elevator operation and pictorial information transmission and with elevator car in the conversation of intercommunication communicator.
Elevator monitoring diagnostic device 101 itself become a control station and regularly (time) from image compression device 111 and 112, collect pictorial information by picture intelligence transmission cable 30.
The image compression device 141 of caretaker room is by the supervision to the pictorial information on the picture intelligence transmission cable 30, also can not reproduce image in all elevator cars even the pictorial information of image compression device 111 and 112 sends to the elevator monitoring center on monitoring device 151.
And because image is by image compression device 111 and 112 digitalisations, this has just produced such advantage, and the wiring that promptly sends pictorial information in the elevator car can adopt cheap twisted-pair cable to replace expensive coaxial cable.
Pictorial information in the elevator car is stored in the elevator monitoring diagnostic device 101 as the still image picture.When the subordinate intercommunication communicator 131 or 132 that detects elevator control desk 171 and 172 and have abnormal condition or elevator car required urgency traffic, this pictorial information promptly sent to central monitoring position device 181.Pictorial information in the elevator car shows on monitor 191.And by visit, central monitoring position device 181 also can be read pictorial information.
Ensuing Fig. 2 is the block scheme of the hardware configuration of the remote elevator monitoring diagnostic device of expression.
In Fig. 2, sequence number 206 and 214 is represented micro controller system respectively, the data transmission of micro controller system 214 controls and elevator control desk 171 and 172.216 of micro controller systems monitor and diagnose the state of this elevator control desk according to the status data of elevator control desk, from the image compression device input image data, and by the data transmission of telephone wire control with the central monitoring position device.For with the communication contact of elevator control desk, micro controller system 214 has a special elevator communication control path 213 and is used to transmit the timekeeping circuit 212 of control.Be independently of one another and be to carry out simultaneously with the communication contact and the elevator status surveillance diagnostic procedure of elevator control desk.The status data of reading from the elevator control desk is delivered on the micro controller system 206 by dual-ported memory 210.The ROMS and the RAMS that is used to deposit control data that are used to deposit control program of micro controller system 214 use ROMS and RAMS in the micro controller system 214 respectively.
In order to transmit the image in the elevator car, interface circuit 211 and communication control circuit 207 have been used with image compression device transmission data.
In remote elevator monitoring diagnostic device, just can realize picture transmission as long as on circuit commonly used, add a circuit with the image compression device interface.
Fig. 3 is the hardware configuration block scheme that expression is arranged on the image compression device in the elevator car.
In Fig. 3, sequence number 303 representatives are used for controlling the micro controller system of image compression device; This micro processor controls is from the compression of the pictorial information of photographic camera input and the pictorial information transmission of giving remote elevator monitoring diagnostic device.
Sequence number 304 and 305 is represented the ROM of the control program that stores handler 303 respectively and is stored the RAM of the control data of micro controller system 303.The interface phone of the photographic camera (pick up camera) in sequence number 308 representatives and the elevator car; Sequence number 306 representatives will convert the mould/number conversion circuit of digital image signal from the analog picture signal of interface circuit 308 inputs to; And sequence number 307 is represented mould/number conversion control circuit.
When the picture intelligence in the elevator car compressed by digitalisation, they were stored in among the RAM that deposits control data.These compressed picture intelligences are that the form with digital value sends in the remote elevator monitoring diagnostic device.
Sequence number 302 representatives are to the communication control circuit of the digital value of the image of compression; Sequence number 301 is then represented a communication interface circuit.
Fig. 4 is the block scheme of hardware configuration that expression is arranged on the image regenerating device of elevator management chamber.
Image regenerating device links to each other with the pictorial data transmission line of compression, and this transmission line links to each other the image compression device of elevator car with remote elevator monitoring diagnostic device; And the pictorial data of compressing by supervision in a caretaker room monitors the image in the elevator car.
In Fig. 4, the micro controller system of sequence number 403 representative control image regenerating devices, this micro controller system can be imported the pictorial data of compression, with reproduced picture; Sequence number 404 and 405 is represented the ROM of the control program that stores micro controller system 403 respectively and is stored the RAM of its control data; The interface circuit of sequence number 408 representatives and image surveillance device; Sequence number 406 represents one to convert digitized pictorial information to analog information so that show this visual D/A switch circuit on the image surveillance device; Sequence number 407 is represented the D/A switch control circuit; Sequence number 402 representative is used for receiving the communication control circuit of the pictorial data of compression; And sequence number 401 is represented the communication interface circuit.
Fig. 5 is the block scheme of the hardware configuration of expression central monitoring position device.
The central monitoring position device is arranged in the elevator monitoring and links to each other with remote elevator monitoring diagnostic device in the heart and by telephone wire.This device control is from the reception of the elevator monitoring diagnostic data of remote elevator monitoring diagnostic device, by the conversation of the intercommunication communicator in the elevator car and the reception of the pictorial data in the elevator car.
In Fig. 5, sequence number 506 is represented the micro controller system of control data transmission, the conversation of intercommunication communicator and picture transmission; The micro controller system of the image regeneration of the pictorial data of sequence number 515 representative control compressions; Sequence number 501 representative control telephone wire bonded assembly network control circuits; Sequence number 502 represent one be used for elevator car in the intercommunication communicator interface circuit that send the words telephone transmitter that carries out sound conversation; Sequence number 503 is represented the modulation/demodulation circuit of modulation-demodulation device, uses this circuit to transmit the pictorial data of elevator monitoring diagnostic data and compression; Sequence number 504 representative data communication control circuits; Sequence number 505 is represented a timekeeping circuit that is used to transmit control etc.; On behalf of the ROM of the control program that stores micro controller system 506 and the RAM sequence number 509 of its control data of storage, sequence number 507 and 508 represent a both-end RAM respectively, and the pictorial data of compressing by this RAM can mail to micro controller system 505 or opposite sense transmission from micro controller system 506.
Sequence number 513,514 represent respectively the control program that stores micro controller system 515 ROM, store the RAM sequence number 512 representing images monitor and diagnosis apparatus interface circuits of its control data, can regenerate by the image in this circuit elevator car; Sequence number 511 representatives convert the digital map picture signals in the D/A switch circuit of analog signal; And sequence number 510 representatives are transformed into the picture intelligence of simulation in the mould/number conversion circuit of the signal of numeral.
As mentioned above, according to the present invention, the pictorial information in the elevator car is compressed by digitalisation.The elevator monitoring diagnostic data and from the voice data in the elevator car can with the time () divide (cutting) method defeated a phone line.Like this, the safety performance in the service efficiency of telephone wire and the envelope can improve.
When the pictorial information by the image compression device compression sends to an information romote monitor and diagnosis apparatus, can adopt the boost line of having installed already, owing to do not need new transmission line is installed, thereby very economical.
In addition,, but also send to the elevator management chamber, thereby operating personal can take suitable action immediately when abnormal condition appear in elevator, thereby improve service the passenger because the pictorial information in the elevator car not only sends to central monitoring position.
Technical personnel general under the situation that does not depart from flesh and blood of the present invention and scope might be designed multiple different embodiment fully in addition.Should be appreciated that the invention is not restricted to the embodiment described in the specification sheets, the present invention only is subject to appending claims.
Claims (8)
1. an elevator monitoring diagnostic device has: control the elevator control desk that the elevator car operation of intercommunication communicator is being adorned in its inside; Monitor the elevator long distance monitor and diagnosis apparatus of elevator operation conditions; One central monitoring position is connected with described elevator long distance monitor and diagnosis apparatus by telephone line, obtains monitoring diagnostic information in the described elevator car from described elevator long distance monitor and diagnosis apparatus, it is characterized in that this elevator monitoring diagnostic device further comprises:
Be installed in the described elevator car to obtain the pick up camera of graphicinformation in the described elevator car;
Described graphicinformation is carried out the image compressing device of digitalisation and compression;
Transmitting device comprises view data that described image compressing device generate and the elevator car monitoring diagnostic information of the voice data that by intercommunication communicator obtained by described elevator long distance monitor and diagnosis apparatus to described elevator monitoring diagnostic central transmission with time division way.
2. elevator monitoring diagnostic device as claimed in claim 1 is characterized in that described view data that described image compressing device generates and the caretaker room that is also transferred to the building that described elevator is installed by the voice data that described intercommunication communicator obtains.
3. elevator monitoring diagnostic device as claimed in claim 1 is characterized in that described image compressing device is installed in the top of described elevator car.
4. as claim 1 or 3 described elevator monitoring diagnostic devices, it is characterized in that described elevator comprises a plurality of described envelopes that have described image compressing device separately, a plurality of described image compressing devices are connected with described elevator long distance monitor and diagnosis apparatus by the graphicinformation transmission cable of normal signal line transport-type.
5. elevator monitoring diagnostic device as claimed in claim 4 is characterized in that described graphicinformation transmission cable is made of twisted-pair cable.
6. an elevator monitoring diagnostic method is delivered to an elevator monitoring center with the monitor message that elevator car inside obtains through telephone wire, thereby can monitor and diagnose elevator, it is characterized in that comprising:
The elevator car in-to-in graphicinformation that pick up camera obtained is carried out digitalisation and compression;
To comprise with time division way that through described telephone wire the monitoring diagnostic information transfer of the compressing image data of described envelope and voice data is to described elevator monitoring center.
7. elevator monitoring diagnostic method as claimed in claim 6, it is characterized in that the view data of compressing modulated by modem, it is to transmit described digitized modulation image data and transmitting two kinds of pattern intercropping of described simulated voice data and switch, and in this way digitized modulating data and simulated voice data is delivered to the elevator monitoring center.
8. as claim 6 or 7 described elevator monitoring diagnostic methods, it is characterized in that the view data of delivering to described elevator monitoring center also delivers to the caretaker room in the building that described elevator is installed, so that can monitor the inside of described elevator car from described caretaker room.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2239741A JPH04121380A (en) | 1990-09-10 | 1990-09-10 | Elevator supervisory diagnostic system |
| JP239741/90 | 1990-09-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1059880A CN1059880A (en) | 1992-04-01 |
| CN1032303C true CN1032303C (en) | 1996-07-17 |
Family
ID=17049243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91108912A Expired - Fee Related CN1032303C (en) | 1990-09-10 | 1991-09-10 | Elevator monitoring diagnostic apparatus and method thereof |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH04121380A (en) |
| KR (1) | KR100231253B1 (en) |
| CN (1) | CN1032303C (en) |
| TW (1) | TW208694B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4113666B2 (en) | 2000-09-20 | 2008-07-09 | 三菱電機株式会社 | Magnet generator |
| JP3894487B2 (en) * | 2002-10-28 | 2007-03-22 | 株式会社日立製作所 | Elevator car monitoring device and method, and elevator car monitoring device mounting method |
| US7823702B2 (en) * | 2005-12-05 | 2010-11-02 | Mitsubishi Electric Corporation | Elevator monitoring system including automatic passenger detection |
| JP2008074617A (en) * | 2006-08-21 | 2008-04-03 | Land X:Kk | Disaster preventing/emergency reporting system of elevator |
| JP5022809B2 (en) * | 2007-08-01 | 2012-09-12 | 株式会社日立ビルシステム | Abnormality monitoring device in elevator car |
| CN102219139A (en) * | 2010-04-15 | 2011-10-19 | 鸿富锦精密工业（深圳）有限公司 | Elevator safety monitoring system and method |
| CN102616617B (en) * | 2012-03-23 | 2014-11-19 | 佛山市智邦电子科技有限公司 | Elevator monitoring method |
| CN102602762B (en) * | 2012-03-23 | 2015-05-20 | 佛山市智邦电子科技有限公司 | Elevator repair monitoring method |
| KR101443763B1 (en) * | 2013-03-15 | 2014-10-01 | 스마트엘리베이터(주) | System and method for wireless controling of elevating means using mobile devices |
| CN103231962A (en) * | 2013-05-15 | 2013-08-07 | 北京晶科华盛科技有限公司 | Diagnosis and early-warning system for elevator faults |
| WO2014200457A1 (en) * | 2013-06-10 | 2014-12-18 | Otis Elevator Company | Elevator noise monitoring |
| JP6295191B2 (en) * | 2014-12-15 | 2018-03-14 | 株式会社日立ビルシステム | Elevator car image monitoring device |
| KR102073299B1 (en) * | 2016-03-14 | 2020-02-04 | 미쓰비시덴키 가부시키가이샤 | Elevator system |
| JP6655530B2 (en) * | 2016-12-19 | 2020-02-26 | 株式会社日立ビルシステム | Call check system, call check device, and call check method |
| JP6571817B2 (en) * | 2018-02-19 | 2019-09-04 | Ｎｉｃ株式会社 | Elevator intercom monitoring device |
| JP6843935B2 (en) * | 2019-09-05 | 2021-03-17 | 東芝エレベータ株式会社 | Elevator user detection system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR910006670Y1 (en) * | 1985-07-15 | 1991-08-31 | 주식회사 금성사 | Lookout device of elevator |
-
1990
- 1990-09-10 JP JP2239741A patent/JPH04121380A/en active Pending
-
1991
- 1991-09-03 TW TW080107000A patent/TW208694B/zh active
- 1991-09-06 KR KR1019910015571A patent/KR100231253B1/en not_active IP Right Cessation
- 1991-09-10 CN CN91108912A patent/CN1032303C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR100231253B1 (en) | 1999-11-15 |
| TW208694B (en) | 1993-07-01 |
| CN1059880A (en) | 1992-04-01 |
| JPH04121380A (en) | 1992-04-22 |
| KR920007473A (en) | 1992-04-28 |
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