CN101188746A - Misdeed-proof camera image displaying system for elevator - Google Patents
Misdeed-proof camera image displaying system for elevator Download PDFInfo
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- CN101188746A CN101188746A CNA2007103051109A CN200710305110A CN101188746A CN 101188746 A CN101188746 A CN 101188746A CN A2007103051109 A CNA2007103051109 A CN A2007103051109A CN 200710305110 A CN200710305110 A CN 200710305110A CN 101188746 A CN101188746 A CN 101188746A
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Abstract
The invention provides an anti-crime camera image display system for an elevator, which can suppress the crime action in the cage and ensure the passenger easily identify whether an image recording the image recording device is provided. The system is provided with a first output unit which outputs the order and takes the first signal of the image signal recorded by an image recording device 4, a second output unit which outputs the second signal of the order signal of the image signal of the image recording device 4 taken by the first output unit displayed by an image display device 3, and an image switching display device 7 which implements switch to the image to ensure the image signal taken by the image recording device 4 display at the real-time image and display at the image display device 3.
Description
Technical field
The present invention relates to reaching the delinquency prevention camera image displaying system that car is come in and gone out oral-lateral enforcement photography and shown in the lift car.
Background technology
Inherent this car door of the car of above-mentioned elevator just becomes secret room completely when closing, and the state of formation and external isolation is so have the problem of easy generation such as crime or mischief behavior.In the delinquency prevention camera image displaying system of the prior art that patent documentation 1 is expressed, such system has been proposed: promptly by being presented at the image display device that is provided with in the car with the image that the photography of the delinquency prevention video camera in the lift car obtains, the passenger can be monitored implementing in the car, simultaneously, the inflicter is also awared the car inherence is monitored, thereby make its convergence attempt to commit a crime.
And, in the delinquency prevention camera image displaying system of the prior art that patent documentation 2 is represented, break down at delinquency prevention video camera and the transmission circuit used from the signal that the delinquency prevention video camera sends, and the occasion that makes the picture signal interruption, can utilize monitoring arrangement can not detect the synchronizing signal (horizontal-drive signal that the monitoring arrangement picture signal is comprised by detection, vertical synchronizing signal) phenomenon (synchronizing signal disappearance), and export this detection signal, send the warning and the alarm of anomaly generation usefulness.This system has used in many monitoring arrangements and image recording structure.
And, in the delinquency prevention camera image displaying system of the prior art that patent documentation 3 is represented, even under the situation that has normally detected the above-mentioned synchronizing signal that illustrated as patent documentation 2, cause unusual occasion for faults such as the image state that causes video camera, monitoring traffics, also can detect this unusual condition, give a warning and alarm.In this system, also be provided with according to the value of image being implemented obtain after differential is handled and differentiate unusual imageing sensor whether occurs.
[patent documentation 1] Japanese kokai publication hei 03-31177 communique
[patent documentation 2] TOHKEMY 2001-157195 communique
[patent documentation 3] TOHKEMY 2000-194969 communique
Summary of the invention
In the technology of above-mentioned patent documentation 1 record, general structure is the delinquency prevention video camera to be arranged on lift car the inside side and in the car oral-lateral configuration image display unit of coming in and going out.The picture of image display device projection is just shown realtime graphic on a picture, the passenger usually, is to stand towards the gateway of car when confirming image display device, so its behind posture can only be reflected on the display unit.Thereby, consider from the angle of guilty mind, because the face that fails to reflect the passenger, so still have the problem that is difficult to be prevented the effect that criminal offence takes place.
The delinquency prevention camera chain that patent documentation 2 and patent documentation 3 provide is a kind of system that can implement to detect the laggard newspaper that works to the fault of the signal circuit of delinquency prevention video camera itself or delinquency prevention video camera.Thereby, at the image recording structure different with the delinquency prevention video camera, the image recording structure that image display device was write down and exported in the image enforcement that promptly photography obtains to the delinquency prevention video camera takes place unusual, and can not demonstrate the occasion of the image of delinquency prevention video camera, or the occasion of the image of the delinquency prevention video camera of can not regenerating, just need to use communication line to circulate a notice of the generation of these anomalies at a distance to central monitoring position.Therefore, in this delinquency prevention system, need have the function that to carry out above-mentioned circular, so also have the machine construction complicated problems.
The present invention forms for solving such prior art problems, its purpose is to provide a kind of criminal offence that can suppress in the car, and makes the interior passenger of car can easily judge the delinquency prevention camera image displaying system of the elevator that whether has write down image in the image recording structure.
In order to realize this purpose, as first aspect present invention, provide a kind of delinquency prevention camera image displaying system of elevator, it has: be arranged on delinquency prevention video camera lift car the inside side, that the discrepancy oral-lateral of above-mentioned car implemented photography; Be configured in above-mentioned car come in and go out oral-lateral, show image display device as the realtime graphic of above-mentioned delinquency prevention video camera output image; With the image recording structure of record from the picture signal of above-mentioned delinquency prevention video camera output, it is characterized in that having: export first output unit of first signal, described first signal instruction begins to be taken into the above-mentioned picture signal that above-mentioned image recording structure writes down; Second output unit of output secondary signal, described secondary signal are to allow above-mentioned image display device begin to show the command signal of the above-mentioned picture signal of the above-mentioned image recording structure that begins to be taken into this first output unit; And image implement switched so that the above-mentioned picture signal that is taken into from above-mentioned image recording structure overlaps on the above-mentioned realtime graphic, and be presented at the image shifting display of above-mentioned image display device.
In the present invention who constitutes like this, receive by the secondary signal that receives the output of second output unit behind first signal of first output unit output to image shifting display from image shifting display, utilize image shifting display will be recorded in the delinquency prevention video camera of image recording structure image, be the image of passenger in entering into car the time, overlap on image display device on the realtime graphic in the shown car that obtains by the delinquency prevention video camera.Receive the secondary signal of second output unit output at image shifting display after, this image shifting display shows above-mentioned overlapping image switching to the image display device that is configured in car discrepancy oral-lateral.Therefore, the passenger in the car can see the image that comprises own face image in image display device, so the criminal offence that can suppress in the car takes place.The passenger of car can easily judge image recording structure and not carry out the image record when realizing that image display device is not shown out above-mentioned image.
Delinquency prevention camera image displaying system as the elevator of second aspect present invention, it is characterized in that, on the basis of first aspect present invention, above-mentioned first signal is for whole opening signals of elevator door OPEN signal, the opening signal of above-mentioned elevator door, above-mentioned elevator door, and to carrying out some first timing signal of timing and output to the time the above-mentioned whole opening signals of output when having exported above-mentioned OPEN signal; Above-mentioned secondary signal is for the sign on signal that travels of the shutdown signal of above-mentioned elevator door cut-off command, above-mentioned elevator door, elevator, and to carrying out some second timing signal of timing and output to the above-mentioned time of travelling the sign on signal of output when having exported above-mentioned cut-off command.
Delinquency prevention camera image displaying system as the elevator of third aspect present invention, it is characterized in that, on the basis of first aspect present invention or second aspect, the overlapping overlapping pictures that is presented at the above-mentioned image display device on the above-mentioned realtime graphic repeats to be presented at the above-mentioned picture signal that outputs to the above-mentioned image display device between the secondary signal output from the first above-mentioned signal at least.
The present invention can utilize image shifting display etc., image when the passenger is entered car and the realtime graphic in the car are implemented overlapping, and this image after overlapping is shown at the image display device place in car, so, passenger in the car can confirm the image that comprises own face image in image display device, thus, comparable prior art suppresses the criminal offence in the car better, simultaneously, make the passenger in the car judge the image that whether has write down image recording structure easily.Produced unusual occasion for image recording structure, can not demonstrate image at the image recording structure place, the passenger can be according to this phenomenon is judged in the affirmation of image recording structure, no longer need to be provided with the equipment of as prior art, circulating a notice of anomaly generation usefulness to central monitoring position, so the device structure constituent ratio prior art that system is comprised is simpler, therefore can reduce manufacturing cost.
Description of drawings
Fig. 1 is the block diagram of an execution mode of the delinquency prevention camera image displaying system of expression elevator of the present invention.
Fig. 2 observes the schematic diagram that the passenger enters the state of lift car from the top of car.
Fig. 3 is the flow chart that is used to illustrate the action of present embodiment.
Fig. 4 is the back view that the expression passenger enters the state in the lift car.
Fig. 5 is the enlarged drawing that the expression passenger enters the picture of the image display device behind the car.
Fig. 6 be illustrated in an example having produced the picture when unusual in the image recording structure with the corresponding schematic diagram of Fig. 5.
[symbol description]
1 car
2 delinquency prevention video cameras
3 image display devices
3A actual size picture
The 3B overlapping pictures
4 image recording structures
5 pattern recognition devices
6 elevator control gears
7 image shifting displays
Concrete execution mode
Below with reference to the accompanying drawings, the best form that the delinquency prevention camera image displaying system that is used for implementing elevator of the present invention is used is described.
[formation of present embodiment]
Fig. 1 is the block diagram of an execution mode of the delinquency prevention camera image displaying system of expression elevator of the present invention, and Fig. 2 is the schematic diagram of the state when observing the passenger from the top of car and entering lift car.
Utilize Fig. 1, Fig. 2 that the formation of present embodiment is described below.The delinquency prevention camera image displaying system of the elevator of present embodiment, for example, as Fig. 1, Fig. 2 represent, have: at the side back side, the inside of the car 1 that carries passenger upper portion delinquency prevention video camera 2 that be provided with and that the discrepancy oral-lateral of car 1 is implemented photography; Be configured in the top of the discrepancy oral-lateral of the diagonal position of this delinquency prevention video camera 2, and show image display device 3 as the realtime graphic of delinquency prevention video camera 2 output images; With the image recording structure 4 of record from the picture signal of delinquency prevention video camera output.And, also have: detect the pattern recognition device 5 that has or not the passenger; The elevator control gear 6 of the signals such as switching of the door 8 of control car 1; Switch image so that picture signal that is taken into from image recording structure 4 and realtime graphic are overlapping and be shown to the image shifting display 7 of image display device 3.
In car 1, also be provided with: the contact 1A that opens action such as push-botton operation by operation in this car 1 not shown; Close the contact 1B of action such as push-botton operation by operation in this car 1 not shown; With send actuating signal to above-mentioned setting contact 1A and 1B and come the relay 1C of the door motor of the not shown door 8 of controlling and driving.
In addition, image recording structure 4, the image of sending from delinquency prevention video camera 2, the cycle with 3 seconds before detecting the passenger is implemented storage to not shown RAM.
Above-mentioned pattern recognition device 5, the picture signal that mirrors delinquency prevention video camera 2 is implemented identification as image, and have or not the passenger in detecting car 1 after, the detection signal that expression is had or not the passenger is to image display device 3 and image recording structure 4 outputs.At that time, pattern recognition device 5 sends out the command signal that begins to show realtime graphic at image display device 3 when having detected the passenger, is detecting when not having the passenger, sends that to make at image display device 3 shown realtime graphics be the command signal of non-demonstration.
Above-mentioned elevator control gear 6 also has first output unit and second output unit.First output unit wherein begins to be taken into first signal of the picture signal that image recording structure 4 stored to image shifting display 7 output orders.Second output unit the picture signal of the image recording structure 4 that begins to be taken into by above-mentioned first output unit, or allows the secondary signal of the command signal that image display device 3 begins to show, such as exporting as the control signal of contact 1B.That is, elevator control gear 6, (for example begin to be taken into as Fig. 2 represents to 7 outputs of relay 1C and image shifting display at first signal of the picture signal of passenger B when the direction of arrow enters, the door opening signal of expression elevator door 8 open modes), picture signal when above-mentioned passenger B will be entered and realtime graphic are overlapping and (for example make command signal that display unit begins to show, secondary signal, door shutdown signal as the instruction of closing elevator door 8), export image shifting display 7 to.
Image shifting display 7 is receiving above-mentioned first signal and the secondary signal that sends from above-mentioned elevator control gear 6, or the elevator stop signal is constantly same, comprises the triggering signal that the passenger enters the image of image to image recording structure 4 additional representation.That is, in the picture signal of the triggering signal of having added the RAM that is stored in image recording structure 4, comprising passenger's face image.
From 8 a signal of car 1, include the door opening signal that detects elevator door 8 and open, the whole opening signals of door that detection elevator door 8 is all opened etc. to elevator control gear 6 outputs.
[action of present embodiment]
Fig. 3 is the flow chart of the course of action of explanation present embodiment, Fig. 4 observes the schematic diagram that the passenger enters the state in the lift car from the car rear side, Fig. 5 is the enlarged drawing that the expression passenger enters the picture of the image display device behind the car, Fig. 6 be with the presentation video tape deck produce the picture when unusual an example, with the corresponding schematic diagram of Fig. 5.
Mainly utilize Fig. 3～Fig. 5 below, the course of action of present embodiment is described.
For example, when having in car 1 under the state of passenger A, when passenger B operated not shown elevator call buttons, the car 1 of elevator was called out the corresponding floor at passenger B place.When lift car 1 arrives this floor, from elevator control gear 6 to relay 1C and image shifting display 7 out gate OPEN signals, make elevator door 8 begin to open, and first output unit that is comprised from elevator control gear 6 is exported first signal (door opening signal) (step S1) to the not shown control circuit of elevator control gear.Elevator control gear 6 is after detecting elevator door 8 and be opened according to first signal (door opening signal), to image shifting display 7 outputs first signals (door opening signal).Here, the picture signal that mirrors delinquency prevention video camera 2 is imported into pattern recognition device 5, image recording structure 4, image display device 3, the image shifting display 7 that Fig. 1 represents, image recording structure 4 is with cycle of 3 seconds, the picture signal (step S2) that was obtained by delinquency prevention video camera 2 before not shown RAM memory image recognition device 5 detects the passenger.And, as Fig. 4 represents, in the passenger enters into car 1, and when detecting this passenger (step S3) with pattern recognition device 5, this pattern recognition device 5 sends out this passenger's detection signal to image recording structure 4 and image display device 3, receive the image recording structure 4 of occupant detection signal, be taken into view data (step S4) at step S2 to RAM to not shown hard-disc storage.
In addition, at step S1, when from elevator control gear 6 when image shifting display 7 sends out first signal (door opening signal), image shifting display 7 sends out expression to image recording structure 4 and comprises the triggering signal (step S5) that the passenger enters the image of car 1.When image recording structure 4 receives passenger's detection signal, begin implementing to show (step S6) from the image of delinquency prevention video camera 2 outputs at image display device 3.Then, be taken into the view data (step S4) of RAM to hard-disc storage, and from the view data of hard-disc storage, be taken into the additional image that has expression to comprise the triggering signal of the image that the passenger enters, send view data (step S7) to image shifting display 7.Then, when image shifting display 7 receives from view data that image recording structure 4 sends, as Fig. 5 represents, carry out the editor of image, to allow to be presented at overlapping pictures 3B, this overlapping pictures 3B is to overlap the actual size picture 3A of image display device 3, the little picture corresponding with many pictures (for example, 1/4 of the area of the actual size picture 3A) size (step S8) that can see two pictures.
After passenger B enters car 1, export secondary signals (door cut-off command) to relay 1C and image shifting display 7 from second output unit that elevator control gear 6 is comprised.And, the image shifting display 7 that receives secondary signal (door cut-off command) among actual size picture 3A, sends the picture signal editor who provides from delinquency prevention video camera 2 and makes actual size picture 3A and compile image (step S10) after the doubling of the image that overlapping pictures 3B can show by step S8 to image display device 3.Receive the image display device 3 of these superimposed images, as Fig. 5 represents, with the realtime graphic that is presented on the actual size picture 3A, with the image of the face image that comprises the passenger B when image shifting display 7 receives first signal (door opening signal), on overlapping pictures 3B, implement to show (step S11).Here, passenger B sees the overlapping pictures 3B that comprises own face image in the image display device 3, just knows that the face image of oneself has been recorded.
In addition, produce unusual occasion for image recording structure 4 and hard disk, image shifting display 7 can not be taken into the image that comprises the image that the passenger enters from image recording structure 4.Thereby as Fig. 6 represented, what the picture of image display device 3 only showed was the realtime graphic of actual size picture 3A, is in the state that does not show whatever on the overlapping pictures.
Then, car 1 arrives designated floor, and when car 1 stopped, passenger B got off from car 1.Along with stopping of car 1, elevator control gear 6 is to image shifting display 7 output these stop signals (step S12).Then, receive the image shifting display 7 of the stop signal of this car 1, at step S10, the picture signal that editor is transmitted from delinquency prevention video camera 2 on actual size picture 3A, compile after the overlapping operation of the image that overlapping pictures 3B can show with this actual size picture 3A with by step S8 in end, stop the image behind image display device 3 sending overlaps, and export the stop signal (step S13) of cars 1 to image recording structure 4.
In addition, when image display device 3 no longer provides image after overlapping according to step S13, allow actual size picture 3A show the image (step S14) that transmits from delinquency prevention video camera 2.And, receive the image recording structure 4 of the stop signal of car 1, stop to send the image (step S15) that above-mentioned hard disk is stored to image shifting display 7.
Then, car 1 arrives the floor of passenger A appointment, when all the passenger is not all in car, does not have the passenger in pattern recognition device 5, promptly detects no passenger's signal (step S16).And, pattern recognition device 5 sends this no passenger's signal to image display device 3 and image recording structure 4, receive the image recording structure 4 of this no passenger's signal, stop the image (step S17) that is taken into to RAM that is undertaken by above-mentioned steps S4 to hard-disc storage.In addition, receive the image display device 3 of no passenger's signal, stop to show the operation of the image that obtains from delinquency prevention video camera 2 that is undertaken by step S14, enter non-show state (step S18) to actual size picture 3A.
[effect of present embodiment]
Present embodiment according to such formation, image when utilizing image shifting display 7 to enter into the passenger in the car 1, implement overlapping with the realtime graphic of actual size picture 3A in the car 1, and image display device 3 projection that these superimposed images are being positioned at car 1, so the passenger B that is arranged in car 1 can confirm to comprise the image of own face image at image display device 3, thus, comparable prior art more can be suppressed at the criminal offence in the car 1, and the passenger A in the car 1, B can judge the image that whether has write down image recording structure 4 easily.When image recording structure 4 generations were unusual, image display device 3 is display image not, so passenger A, B can be according to the appearance of the affirmation of image display device 3 being judged this phenomenon.Therefore, no longer need to the central monitoring position circular the used equipment of anomaly to take place as prior art, this Constitution ratio of plant prior art that system is comprised is simpler, therefore can correspondingly reduce manufacturing cost.
In addition, even if make: the OPEN signal of the elevator door 8 that above-mentioned first signal is a lift car 1, the opening signal of the elevator door 8 of car 1, the whole opening signals of the elevator door 8 of car 1 and first timing signal that carries out timing and output to the time the whole opening signals of output to from the OPEN signal of elevator door 8 of output car 1 time are (for example, the signal that comes from timer) some, and secondary signal is the cut-off command of the elevator door 8 of car 1, the shutdown signal of the elevator door 8 of car 1, second timing signal that travels the sign on signal and carry out timing and output to output the time the sign on signal of travelling to from the cut-off command of elevator door 8 of output car 1 time of elevator (for example, the signal that comes from timer) some also can obtain the action effect identical with present embodiment.
And, in the present embodiment, demonstration with the overlapping pictures 3B of the image display device of the overlapping realtime graphic that is presented at actual size picture 3A, made from first signal by elevator control gear 6 outputs (door opening signal) and begun to stop to car 1 at step S1, even repeat to show at least from (for example exporting first signal but overlapping pictures 3B made, the door opening signal) (for example arrives the output secondary signal time, the door cut-off command) picture signal that image display device 3 obtains also can obtain the action effect identical with present embodiment.
Claims (3)
1. the delinquency prevention camera image displaying system of an elevator, it has: be arranged on delinquency prevention video camera lift car the inside side, that the discrepancy oral-lateral of above-mentioned car implemented shooting; Be configured in above-mentioned car come in and go out oral-lateral, show image display device as the realtime graphic of above-mentioned delinquency prevention video camera output image; With the image recording structure of record from the picture signal of above-mentioned delinquency prevention video camera output, it is characterized in that,
Have:
Control device, it comprises: export first output unit of first signal, described first signal instruction begins to be taken into the above-mentioned picture signal that above-mentioned image recording structure writes down; Second output unit of output secondary signal, described secondary signal are to allow above-mentioned image display device begin to show the command signal of the above-mentioned picture signal of the above-mentioned image recording structure that begins to be taken into this first output unit; And
Image shifting display, it implements to switch so that the above-mentioned picture signal that is taken into from above-mentioned image recording structure overlaps on the above-mentioned realtime graphic to image, and is presented at above-mentioned image display device.
2. the delinquency prevention camera image displaying system of elevator according to claim 1 is characterized in that,
Whole opening signals of the opening signal of the OPEN signal that above-mentioned first signal is an elevator door, above-mentioned door, above-mentioned door and from carrying out some first timing signal of timing and output to the time the above-mentioned whole opening signals of output when having exported above-mentioned OPEN signal;
Above-mentioned secondary signal is the shutdown signal of the cut-off command of above-mentioned door, above-mentioned door, sign on signal that elevator travels and to carrying out some second timing signal of timing and output to the above-mentioned time of travelling the sign on signal of output when having exported above-mentioned door cut-off command.
3. the delinquency prevention camera image displaying system of elevator according to claim 1 and 2 is characterized in that,
The overlapping overlapping pictures that is presented at the above-mentioned image display device on the above-mentioned realtime graphic, when repeating to be presented at least from above-mentioned first signal output to the above-mentioned picture signal of the above-mentioned image display device the output secondary signal.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006313182 | 2006-11-20 | ||
| JP2006313182A JP4909716B2 (en) | 2006-11-20 | 2006-11-20 | Elevator security camera video display system |
| JP2006-313182 | 2006-11-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101188746A true CN101188746A (en) | 2008-05-28 |
| CN101188746B CN101188746B (en) | 2010-04-21 |
Family
ID=39480897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007103051109A Active CN101188746B (en) | 2006-11-20 | 2007-11-19 | Misdeed-proof camera image displaying system for elevator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4909716B2 (en) |
| CN (1) | CN101188746B (en) |
| HK (1) | HK1121895A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121610A (en) * | 2011-11-18 | 2013-05-29 | 株式会社日立制作所 | Prevention device and prevention method |
| CN105129555A (en) * | 2015-08-04 | 2015-12-09 | 董岩 | Method for recognizing suspicious elevator violence incident |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223467A (en) * | 1975-08-14 | 1977-02-22 | Matsushita Electric Ind Co Ltd | Heat sensitive controlling device for use in cooking equipment |
| JPH0453764A (en) * | 1990-06-21 | 1992-02-21 | Fuji Xerox Co Ltd | Ion current control recording device |
| KR940006489B1 (en) * | 1992-06-19 | 1994-07-21 | 금성산전 주식회사 | Elevator crime prevention apparatus and method |
| JP2001346197A (en) * | 2000-06-02 | 2001-12-14 | For-A Co Ltd | Supervisory camera system |
| JP2001346196A (en) * | 2000-06-02 | 2001-12-14 | Techno Scope:Kk | Image processing unit and image processing method |
| JP2002046950A (en) * | 2000-08-01 | 2002-02-12 | Mitsubishi Electric Building Techno Service Co Ltd | Elevator car monitoring device |
| JP2002128407A (en) * | 2000-10-26 | 2002-05-09 | Hitachi Building Systems Co Ltd | Crime-preventing camera system inside car for elevator |
| JP2003063746A (en) * | 2001-08-23 | 2003-03-05 | Mitsubishi Electric Building Techno Service Co Ltd | Cage inside monitoring device of elevator |
| JP2005047689A (en) * | 2003-07-30 | 2005-02-24 | Toshiba Elevator Co Ltd | Crime prevention camera system for elevator |
| JP2006131408A (en) * | 2004-11-05 | 2006-05-25 | Yoshimasa Fujiwara | I.t management system for image inside/outside elevator car |
-
2006
- 2006-11-20 JP JP2006313182A patent/JP4909716B2/en active Active
-
2007
- 2007-11-19 CN CN2007103051109A patent/CN101188746B/en active Active
-
2008
- 2008-11-26 HK HK08112943.5A patent/HK1121895A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121610A (en) * | 2011-11-18 | 2013-05-29 | 株式会社日立制作所 | Prevention device and prevention method |
| CN105129555A (en) * | 2015-08-04 | 2015-12-09 | 董岩 | Method for recognizing suspicious elevator violence incident |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1121895A1 (en) | 2009-04-30 |
| CN101188746B (en) | 2010-04-21 |
| JP2008127147A (en) | 2008-06-05 |
| JP4909716B2 (en) | 2012-04-04 |
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