CN104444670B - Action abnormity monitoring device for elevator - Google Patents
Action abnormity monitoring device for elevator Download PDFInfo
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- CN104444670B CN104444670B CN201410483686.4A CN201410483686A CN104444670B CN 104444670 B CN104444670 B CN 104444670B CN 201410483686 A CN201410483686 A CN 201410483686A CN 104444670 B CN104444670 B CN 104444670B
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- load
- movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0012—Devices monitoring the users of the elevator system
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- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention provides an action abnormity monitoring device for elevators, which comprises an image action abnormity detection unit for detecting image action abnormity by performing image processing and resolving of passenger images taken by an in-car camera in an elevator car; a load action abnormity detection unit for detecting load action abnormity when an in-car load sensor detects that the load change in the elevator car exceeds a preset threshold value during running; a threshold value setting unit for setting the threshold value corresponding to the load in the elevator car detected by the sensor; an action abnormity determining unit for determining passenger action abnormity by combination of the detection results from the image action abnormity detection unit and the load action abnormity detection unit; and a reporting unit for reporting a warning message to an in-car playing device disposed in the elevator car when the determining unit determines the action abnormity.
Description
Technical field
The present invention relates to the elevator monitored extremely by the movement to the user (passenger) in lift car is different with movement
Normal monitoring arrangement.
Background technology
Conventionally, there is known the monitoring arrangement of following function：Detecting that the passenger in lift car carried out unusual behavior
In the case of, arrange in the car and take precautions against photographing unit, by taking precautions against photographing unit shooting the action of passenger in car, by control
Device judges movement exception according to the result of parsing parsing taken camera images.
For example there is " the fortune of elevator as the well-known technique being associated with such elevator movement abnormality monitoring apparatus
Rotation control apparatus " (with reference to patent documentation 1) and " control device of elevator " (with reference to patent documentation 2), " the operating control of elevator
Device processed " parses the state of passenger in car using the camera images being arranged in car, according to the unusual behavior of passenger
Degree reported by the reporting chain in car, so as to suppress unusual behavior, thus, improve passenger safety,
" control device of elevator " is counted to the number of taking using the title detected value of camera images and elevator in car
Number, according to the patronage in car changing the sensitivity (threshold value) of detection of quarrelling and fighting noisily, thus avoid the superfluous detection of action of quarrelling and fighting noisily.
Prior art literature
Patent documentation
Patent documentation 1：Japanese Unexamined Patent Publication 2007-230732 publications
Patent documentation 2：Japanese Unexamined Patent Publication 2011-11871 publications
The technology that above-mentioned patent documentation 1 and patent documentation 2 are related to is following technology：By image procossing by lift car
Implements that interior passenger is carried out are damaged and violent behavior etc. is detected as movement exception, and the result judgement detected according to this is to be to lift
When moving abnormal, carry out the broadcasting of the warning broadcast for the purpose of preventing criminal behavior and alert the elevator con-trol actions such as display, but
It is only extremely difficult extremely come the movement for judging passenger by image procossing to be, often mistake judges and the passenger of elevator is entered Jing
Row warning notification is likely to result in unhappiness.For example, the passenger in car in action as mirror prefinishing hair, wear striped
Although mild action of the passenger of style clothing etc. is not abnormal conditions, due to the variation of image procossing can be considered it is larger and
Mistake is judged to it is movement exception, due to being carried out as the abnormal warning notification of movement and to normally make use of electricity in this case
The passenger of ladder causes unhappiness.
The content of the invention
The present invention is completed to solve such problem points, and its technical task is to provide a kind of elevator movement
Abnormality monitoring apparatus, can lift the movement exception and the suspicious accuracy of detection of movement of the user (passenger) in car and reduce
Unwanted warning broadcast and warning show, strongly can avoid being judged by mistake and the user to normally utilizing is alerted
Report and cause unhappiness.
In order to solve above-mentioned technical task, the elevator of the present invention is with movement abnormality monitoring apparatus with by taking a picture in railway carriage or compartment
The image of the user that machine is photographed carries out image procossing and parsing carrys out the abnormal image movement abnormality detection of detection image movement
Unit, in the railway carriage or compartment, the appearance of the user of the photographing unit to being arranged in the lift car of building shoots, its feature
It is that the elevator movement abnormality monitoring apparatus have：Load-carrying movement abnormality detecting unit, which is being used to detect the car
The variation of the loading load-carrying in the car during the traveling that load measuring sensor is detected in the railway carriage or compartment of interior loading load-carrying surpasses
When crossing predetermined threshold, load-carrying movement exception is detected；Threshold setting unit, its with detected by load measuring sensor in the railway carriage or compartment
The loading load-carrying in the car accordingly sets the threshold value；Movement abnormality determination unit, which is by described image movement
The testing result of the described image movement exception that abnormality detecting unit is detected and load-carrying movement abnormality detecting unit detection
The movement exception that the testing result of the load-carrying movement exception for going out combines to judge user.
Elevator of the invention movement abnormality monitoring apparatus are detecting in image movement abnormality detecting unit, right
The image movement of image procossing and result obtained from parsing is carried out by the image that photographing unit in railway carriage or compartment (strick precaution photographing unit) is photographed
On the basis of abnormal testing result, the loading in car during the traveling that also load measuring sensor is detected in combination railway carriage or compartment is carried
Testing result of the variation of weight more than the load-carrying movement exception detected by load-carrying movement abnormality detecting unit during predetermined threshold value,
To be judged the movement exception of the user (passenger) in car by movement abnormality determination unit, therefore, it is possible to be lifted in car
The movement of user is abnormal and the suspicious accuracy of detection of movement and reduce unwanted warning broadcast and alert showing, can be strongly
Avoid as mistake judges and to the user warning notification for normally using so as to cause the offending state of affairs.
Description of the drawings
Fig. 1 be represent elevator that embodiments of the invention 1 are related to movement abnormality monitoring apparatus basic structure and into
For the block diagram of major part structure in the lift car at its periphery association position.
Fig. 2 is that the movement abnormal detection function for representing the movement abnormality monitoring apparatus of the elevator shown in Fig. 1 (includes that movement is different
Often judge) flow chart that processes of the action that is related to.
Fig. 3 is to represent that the load-carrying movement included by processing in the action for carrying out the process of the movement abnormality detection shown in Fig. 2 is different
By threshold setting unit setting the mistake of the threshold value of load-carrying amplitude of fluctuation in car during traveling to be applied when often detecting
The flow chart of journey.
Symbol description
100 cars
101 railway carriage or compartment doors
102 load measuring sensors
Photographing unit (strick precaution photographing unit) in 103 railway carriage or compartments
Playing device in 104 railway carriage or compartments
200 movement abnormality monitoring apparatus
201 image movement abnormality detecting units
202 load-carrying movement abnormality detecting units
203 threshold setting units
204 movement abnormality determination units
205 notification means
Specific embodiment
Hereinafter, embodiment is enumerated, referring to the drawings the elevator movement abnormality monitoring apparatus of the present invention is described in detail.
Fig. 1 be represent elevator that embodiments of the invention 1 are related to movement abnormality monitoring apparatus 200 basic structure and
Become the block diagram of the major part structure of the lift car 100 at its periphery association position.With reference to Fig. 1, the electricity of building is arranged at
The major part structure of terraced car 100 has：Railway carriage or compartment door (also referred to as inside door) 101, which works as car 100 in lifting hoistway (not shown)
When middle lifting traveling logs in calling and reaches target zone, engage with the stop door (also referred to as external door) for being arranged at each floor and carry out
Opening and closing；Load measuring sensor 102, the loading load-carrying in its detection car 100；Photographing unit (strick precaution photographing unit) 103 in railway carriage or compartment, its shooting
User (passenger) in car 100；Playing device 104 in railway carriage or compartment, which is included in car 100 and sends (broadcast) predetermined message
Phonation unit (speaker).
In addition, movement abnormality monitoring apparatus 200 have：Image movement abnormality detecting unit 201, which passes through to by shining in railway carriage or compartment
The image of the user that camera 103 is photographed carries out image procossing and parsing carrys out detection image movement exception；Load-carrying movement exception
Detector unit 202, when the variation of the loading load-carrying in the car 100 during the traveling that load measuring sensor 102 in railway carriage or compartment is detected
During more than predetermined threshold value, the load-carrying movement abnormality detecting unit 202 detects load-carrying movement exception；Threshold setting unit
203, the loading load-carrying in car 100 which is detected with load measuring sensor in railway carriage or compartment 102 accordingly given threshold；Movement is sentenced extremely
Order unit 204, the abnormal testing result of the image movement that image movement abnormality detecting unit 201 is detected by which and load-carrying movement
The testing result of the load-carrying movement exception that abnormality detecting unit 202 is detected is combined to judge the movement exception of user；
And notification means 205, when the movement that user is determined by movement abnormality determination unit 204 is abnormal, to being arranged at sedan-chair
In railway carriage or compartment in railway carriage or compartment 100, playing device 104 reports predetermined alert message.Additionally, loading the big situation of load-carrying in car 100
Under, the threshold value of preferred threshold setting unit 203 be set to loading load-carrying greatly, in car 100 it is little in the case of, preferred threshold value
The threshold value of setup unit 203 is set to little.When from notification means 205 report alert message when, in playing device 104 in railway carriage or compartment from
Pronunciation unit (speaker) gives a warning message to play out (broadcast).
Fig. 2 is that the movement abnormal detection function (including movement unusual determination) for representing movement abnormality monitoring apparatus 200 is related to
Action process flow chart.With reference to Fig. 2, in the action that movement abnormal detection function is related to is processed, first, by not scheming
The elevator control gear for showing opening the railway carriage or compartment door 101, occupant ride of car 100 in car 100 after (step S1), elevator control
Device processed closes railway carriage or compartment door 101, the process transfer of load-carrying (step S2) in railway carriage or compartment is detected to load measuring sensor in railway carriage or compartment 102.Now, due to
In railway carriage or compartment, in the railway carriage or compartment of load measuring sensor 102, the testing result of load-carrying is handed over to threshold setting unit 203 and load-carrying movement exception
Detector unit 202, therefore threshold setting unit 203 carries out the threshold value setting (step of the movement abnormality detection based on load-carrying in railway carriage or compartment
S3).Thus, load-carrying movement abnormality detecting unit 202 will can be set with threshold value from load-carrying in the railway carriage or compartment of load measuring sensor in railway carriage or compartment 102
The threshold value of 203 setting of order unit is compared to carry out the abnormal detection of load-carrying movement, the testing result is moved with threshold value in addition
Give movement identifying unit 204.
Therefore, next, car 100 is logged in the calling of target zone in elevator control gear accordingly travel (step
S4, after), the threshold value that movement identifying unit 204 is set according to threshold setting unit 203 is by whether need movement abnormality detection
Judgement (step S5) being made whether to need movement abnormality detection.If the result of the judgement does not need movement abnormality detection
Tenth skill process, but if needing movement abnormality detection, then movement identifying unit 204 will be by load-carrying movement detector unit 202
Detection is compared to from load-carrying in the railway carriage or compartment of load measuring sensor in railway carriage or compartment 102 and the threshold value set by threshold setting unit 203 to carry
Movement exception again, as a result, whether the load-carrying amplitude of fluctuation of variation of the loading load-carrying being indicated in car 100 is more than
The judgement (step S6) of threshold value.If it is below threshold value that the result of the judgement is load-carrying amplitude of fluctuation, it is transferred to from by electricity
Terraced control device makes the traveling of car 100 has stopped whether opening the judgement (step S8) of railway carriage or compartment door 101, and if load-carrying changes
Amplitude Ratio threshold value is big, then movement identifying unit 204 continues through image movement abnormality detecting unit 201 pairs by photographing unit in railway carriage or compartment
The image of 103 user for photographing (passenger) carries out image procossing, as the result of parsing, is made whether to detect that image is lifted
Move abnormal judgement (step S7).If the result of the judgement is to be not detected by image movement exception, it is transferred to from passing through
Elevator control gear makes the traveling of car 100 has stopped whether opening the judgement (step S8) of railway carriage or compartment door 101, and if detected
Image movement exception, then movement abnormality determination unit 204 be judged to the movement exception for being user (passenger), the situation is transferred
To notification means 205, (raised one's voice from pronunciation unit by having reported playing device 104 in the railway carriage or compartment of alert message from notification means 205
Device) " asking peace and quiet to be taken " message (step S9) by way of caution is played, then tenth skill is processed.But additionally, although it is not shown,
When display device is arranged on the operation panel in car 100, such alert message can also be in the display picture of display device
Carry out warning to show on face.
In addition, if whether opening sentencing for railway carriage or compartment door 101 from the traveling that car 100 is made by elevator control gear is stopped
The result of fixed (step S8) is to open, then tenth skill is processed, and whether but if being to be not turned on, it is that load-carrying changes to return to
Before the judgement (step S6) of amplitude ＞ threshold value, then repeat later process.Here process is following process：For example make
User take in car 100 after sole skidding disequilibrium and strongly trample the ground of car 100 or fall and right
When the load on the ground of car 100 increases etc., load-carrying movement exception is detected even if load-carrying amplitude of fluctuation is bigger than threshold value, as long as
Can't detect the abnormal then movement abnormality determination unit 204 of image movement and will not be judged to movement exception, thus without notification police
Accuse message to avoid causing unhappiness using the user (passenger) of elevator to normal.
Hereinafter, the threshold value of the movement abnormality detection of load-carrying in the railway carriage or compartment that is related to based on above-mentioned threshold setting unit 203 is set
The technical overview of fixed (step S3) is described in detail.Usually, expectation of the nominal load load-carrying of car 100 according to customer etc.
And elevator difference is pressed, therefore, the threshold value of the load-carrying amplitude of fluctuation in car 100 is come by the loading load-carrying of the car 100 when travelling
Determine.Therefore, in the present embodiment 1, initially by the loading load-carrying of the car 100 before traveling calculating ratio value.But,
Due to here remove user (passenger) be a people and it is full when situation, therefore for nominal load load-carrying arrange it is predetermined most
Little application load-carrying and maximum application load-carrying, passing ratio value=(the loading load-carrying before traveling-minimum application load-carrying) ÷ is (most
It is big to apply load-carrying-minimum application load-carrying) relation calculating ratio value.Next, not only pre- to determine using the ratio value
Fixed minimum threshold application, is calculated also by the relation of threshold value=(ratio value × minimum threshold application)+minimum threshold application
The threshold value of the load-carrying amplitude of fluctuation gone out in the car 100 run in journey.
Fig. 3 is to represent that the action in the movement abnormal detection function for carrying out above-mentioned Fig. 2 processes included load-carrying movement
Width is changed come the load-carrying set in the car 100 during traveling to be applied by threshold setting unit 203 during abnormality detection
The flow chart of the process of the threshold value of degree.With reference to Fig. 3, the load in car 100 during the traveling that threshold setting unit 203 is carried out
The setting of the threshold value of weight amplitude of fluctuation is the setting as following process：Using the dress by the car 100 before above-mentioned traveling
Carry load-carrying calculate the method for ratio value ratio accordingly to be calculated with the loading load-carrying of car 100 during traveling
Value, the threshold value that the load-carrying amplitude of fluctuation in the car 100 during travelling is set using the ratio value.
Specifically, the elevator control gear of Fig. 2 first is cut out railway carriage or compartment door 101, will be detected by load measuring sensor in railway carriage or compartment 102
The present loading load-carrying (current load-carrying) of the process acquisition of load-carrying (step S2) in railway carriage or compartment is (minimum effective using load-carrying with minimum
Load-carrying) be compared, be made whether be current load-carrying ＜ minimums load judgement (process T1).If the knot of the judgement
Fruit is that current California bearing ratio minimum load is little, is transferred to and does not need movement abnormality detection (process T5), then tenth skill
Process, but if current load-carrying is more than minimum load then continuing, by present loading load-carrying (live load) and most
It is big be compared, be made whether using load-carrying (full payload) be live load ＞ full payloads judgement (process
T3).If the result of determination be live load than full payload it is big if be transferred to do not need movement abnormality detection (process
T5), then tenth skill is processed, but if current load-carrying is below minimum load then continuing, passing ratio value=(when
Front load-carrying-minimum load) ÷ (full payload-minimum load) relation calculating ratio value (process
T3), then pass through threshold value=(ratio value × Minimum Threshold using related ratio value after predetermined minimum threshold is determined
Value)+minimum threshold relation come calculate traveling during car 100 in load-carrying amplitude of fluctuation threshold value, then terminate
Action is processed.
According to the movement abnormality monitoring apparatus 200 that embodiments illustrated above 1 is related to, in image movement abnormality detection list
Figure that unit 201 detects, to image procossing and result obtained from parsing are carried out by the image that photographing unit in railway carriage or compartment 103 is photographed
On the basis of as the abnormal testing result of movement, the car during the traveling that load measuring sensor 102 is detected in railway carriage or compartment is also combined
The load-carrying movement detected by load-carrying movement abnormality detecting unit 202 when loading load-carrying variation more than predetermined threshold value in 100
Abnormal testing result combination, the movement the user (passenger) in car 100 is judged by movement abnormality determination unit 204 are different
Often, strongly drop therefore, it is possible to lift the movement exception and the suspicious accuracy of detection of movement of the user (passenger) in car 100
Low unwanted warning broadcast and warning show.That is, even if in the past, easily wrong the judge, user in car 100 (is taken advantage of
Visitor) for example lifted by image with mild action of passenger of fringe pattern clothing etc. is worn in action as mirror prefinishing hair
Dynamic abnormality detecting unit 201 is detected as image movement exception, due to not being detected as by load-carrying movement abnormality detecting unit 202
Load-carrying movement exception, therefore movement abnormality determination unit 204 will not also be judged to movement exception, in addition, user (passenger)
Sole skidding disequilibrium after taking in car 100 and strongly trample the ground of car 100 or fall and to car
The load increase on 100 ground, even if load-carrying movement abnormality detecting unit 202 detects load-carrying movement exception, as long as image is lifted
Dynamic abnormality detecting unit 201 is not detected by image movement exception, then movement abnormality determination unit 204 will not also be judged to movement
It is abnormal, the warning notification of notification means 205 will not be carried out, therefore, it is possible to strongly avoid judging to making for normally using because of mistake
User (passenger) warning is reported and causes the offending state of affairs.
Claims (2)
1. a kind of elevator movement abnormality monitoring apparatus, which has to enter by the image of the user for photographing photographing unit in railway carriage or compartment
Row image procossing and parsing carry out the abnormal image movement abnormality detecting unit of detection image movement, and in the railway carriage or compartment, photographing unit is to arranging
The appearance of the user in the lift car of building is shot, it is characterised in that
The elevator movement abnormality monitoring apparatus have：
Load-carrying movement abnormality detecting unit, which is being used to detect load measuring sensor detection in the railway carriage or compartment for loading load-carrying in the car
When the variation of the loading load-carrying in the car during the traveling for going out exceedes predetermined threshold, load-carrying movement exception is detected；
Threshold setting unit, which is corresponding with the loading load-carrying in the car detected by load measuring sensor in the railway carriage or compartment
The ground setting threshold value；
Movement abnormality determination unit, the abnormal inspection of the described image movement that described image movement abnormality detecting unit is detected by which
The testing result for surveying the load-carrying movement exception that result and the load-carrying movement abnormality detecting unit are detected combines to judge
The movement exception of user；
Wherein, the current load-carrying obtained by load measuring sensor in the railway carriage or compartment is effectively carried by the threshold setting unit with minimum
Weight and full payload are compared, and are below more than minimum load and full payload in current load-carrying
When, ratio value is calculated by following relations：
Ratio value=(live load-minimum load) ÷ (full payload-minimum load), and the threshold
Value setup unit calculates the car during the traveling after predetermined minimum threshold is set by following relations
The threshold value of interior load-carrying amplitude of fluctuation：
The threshold value of load-carrying amplitude of fluctuation=(ratio value × minimum threshold)+minimum threshold.
2. elevator according to claim 1 movement abnormality monitoring apparatus, it is characterised in that
The elevator movement abnormality monitoring apparatus also have：Notification means, is being judged by the movement abnormality determination unit
When going out the movement exception of the user, the notification means is predetermined to being arranged at playing device notification in the railway carriage or compartment in the car
Alert message.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013194295A JP6163399B2 (en) | 2013-09-19 | 2013-09-19 | Elevator behavior abnormality monitoring device |
| JP2013-194295 | 2013-09-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104444670A CN104444670A (en) | 2015-03-25 |
| CN104444670B true CN104444670B (en) | 2017-04-12 |
Family
ID=52816846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410483686.4A Active CN104444670B (en) | 2013-09-19 | 2014-09-19 | Action abnormity monitoring device for elevator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6163399B2 (en) |
| CN (1) | CN104444670B (en) |
| SG (1) | SG10201405813YA (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6449710B2 (en) * | 2015-04-09 | 2019-01-09 | 株式会社日立ビルシステム | Elevator car video recording system |
| CN104891299B (en) * | 2015-06-16 | 2017-05-03 | 赵国平 | Intelligent elevator monitoring method |
| JP6568505B2 (en) * | 2016-09-05 | 2019-08-28 | 株式会社日立ビルシステム | Video surveillance system |
| CN108840192A (en) * | 2018-08-14 | 2018-11-20 | 北京瑞特森传感科技有限公司 | A kind of monitoring method of elevator, device, electronic equipment and storage medium |
| CN111392541A (en) * | 2020-04-10 | 2020-07-10 | 杭州当虹科技股份有限公司 | Method for intelligently guaranteeing passenger safety based on elevator screen |
| CN113003335A (en) * | 2021-02-19 | 2021-06-22 | 南京贤至再灵智能科技有限公司 | Elevator fault monitoring method and device |
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|---|---|---|---|---|
| CN1052089A (en) * | 1989-11-28 | 1991-06-12 | 三菱电机株式会社 | Apparatus for guard against commit crime in elevator |
| CN1968883A (en) * | 2005-04-27 | 2007-05-23 | 三菱电机株式会社 | Crime prevention device for elevator |
| CN101571914A (en) * | 2008-04-28 | 2009-11-04 | 株式会社日立制作所 | Abnormal behavior detection device |
| CN101801831A (en) * | 2007-10-11 | 2010-08-11 | 三菱电机株式会社 | Elevator security system |
| CN103183263A (en) * | 2011-12-28 | 2013-07-03 | 株式会社日立制作所 | Security system of structure and elevator provided with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58120164U (en) * | 1982-02-05 | 1983-08-16 | フジテック株式会社 | Elevator car abnormality detection device |
| JPS5992881A (en) * | 1982-11-18 | 1984-05-29 | 株式会社東芝 | Burglarproof device for elevator |
| JP2000351547A (en) * | 1999-06-11 | 2000-12-19 | Toshiba Corp | Crime preventing operation device of elevator |
| JP2004149287A (en) * | 2002-10-31 | 2004-05-27 | Toshiba Elevator Co Ltd | Crime prevention system for elevator |
| JP2011011871A (en) * | 2009-07-02 | 2011-01-20 | Mitsubishi Electric Building Techno Service Co Ltd | Elevator control device |
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2013
- 2013-09-19 JP JP2013194295A patent/JP6163399B2/en active Active
-
2014
- 2014-09-17 SG SG10201405813YA patent/SG10201405813YA/en unknown
- 2014-09-19 CN CN201410483686.4A patent/CN104444670B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052089A (en) * | 1989-11-28 | 1991-06-12 | 三菱电机株式会社 | Apparatus for guard against commit crime in elevator |
| CN1968883A (en) * | 2005-04-27 | 2007-05-23 | 三菱电机株式会社 | Crime prevention device for elevator |
| CN101801831A (en) * | 2007-10-11 | 2010-08-11 | 三菱电机株式会社 | Elevator security system |
| CN101571914A (en) * | 2008-04-28 | 2009-11-04 | 株式会社日立制作所 | Abnormal behavior detection device |
| CN103183263A (en) * | 2011-12-28 | 2013-07-03 | 株式会社日立制作所 | Security system of structure and elevator provided with same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015059025A (en) | 2015-03-30 |
| JP6163399B2 (en) | 2017-07-12 |
| CN104444670A (en) | 2015-03-25 |
| SG10201405813YA (en) | 2015-04-29 |
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