CN101357726B - Abnormality monitoring device in elevator car - Google Patents
Abnormality monitoring device in elevator car Download PDFInfo
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- CN101357726B CN101357726B CN200810082379XA CN200810082379A CN101357726B CN 101357726 B CN101357726 B CN 101357726B CN 200810082379X A CN200810082379X A CN 200810082379XA CN 200810082379 A CN200810082379 A CN 200810082379A CN 101357726 B CN101357726 B CN 101357726B
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Abstract
本发明的目的是提供一种电梯轿厢内的异常监视装置，即使是在门上设有窗玻璃的电梯，也能够不受日光等光的影响地监视异常。具有：在照相机图像的上端部区域内设置的照明点亮判定区域；在门上部的闭端部附近设置的门开闭状况判定区域；从门下部的闭端部附近在下方区域内设置的乘客检测区域；比较基本图像的亮度与照相机所拍摄的现图像中的照明点亮判定区域的亮度，判定照明的熄灭点亮的照明判定单元；比较基本图像的亮度与现图像中的门开闭状况判定区域的亮度，判定门的开闭的门开闭判定单元；比较基本图像的亮度与现图像中的乘客检测区域的亮度，检测有无乘客的乘客检测单元。
An object of the present invention is to provide an abnormality monitoring device in an elevator car capable of monitoring abnormalities without being affected by light such as sunlight, even in an elevator having a window glass on the door. There are: a lighting judgment area set in the upper end area of the camera image; a door opening and closing state judgment area set near the upper closed end of the door; a passenger located in the lower area near the closed end of the lower door Detection area; compare the brightness of the basic image with the brightness of the lighting judgment area in the current image captured by the camera, and determine whether the lighting is off or on; the lighting judgment unit that determines whether the lighting is off or on; compare the brightness of the basic image with the door opening and closing status in the current image A door opening/closing judging unit for judging the brightness of the area and judging the opening and closing of the door; a passenger detection unit for detecting the presence or absence of a passenger by comparing the brightness of the basic image with the brightness of the passenger detection area in the current image.
Description
Technical field
The present invention relates to be applicable to and detect in the lift car owing to be attacked from ambush or disease causes the interior abnormality monitoring apparatus of lift car of error state such as falls down.
Background technology
As this prior art, proposed to have or not the passenger by detecting with the image that gets in the camera lift car and according to car floor image partly, detect the switching of car door according to the image of the uppermost component of the moving part of the car door that not influenced by the passenger, when passenger and Men together the state of closing that detects continues certain hour, or the door that detects car door is when closing, if the illuminating lamp that detects in the car according to the image of the sidewall that is not subjected to the top portion that the passenger influences of car in the image extinguishes, then shut up and circulate a notice of (with reference to patent documentation 1) to predetermined circular destination as power failure.
No. 3698584 communique of [patent documentation 1] patent (claim 1, claim 2, paragraph number [0008], [0009] and Fig. 1)
Above-mentioned prior art elevator cage illumination under the door closing state is lighted and in the car image during no passenger as primary image, compare with this primary image with the image of the ground plate portion of the car of camera, detect and have or not the passenger, but when on the door of elevator, wind glass being set, inject the Chaoyang or the setting sun because see through this wind glass sometimes, perhaps summer and winter daylight irradiating angle change and daylight is injected in the car etc., so during at primary image relatively with the image of camera, although the interior also wrong possibility that detects the passenger of no passenger of car.
In addition, set the initial setting operation of the camera image that compares with primary image, because Personal Computer or monitor apparatus are connected on output end of image of photographic camera, while watch the image of demonstration to set, so there is the problem that wastes time and energy.
In addition, when changing photographic camera, the elevator user takes direction or during to mischiefs such as photographic camera sprayings, existence can not make the problem of the correct work of device.
Summary of the invention
First purpose of the present invention provides the abnormality monitoring apparatus in a kind of lift car, also can not be subjected to the influence ground of light such as daylight to monitor unusual even be provided with on door in the elevator of wind glass.
Second purpose of the present invention provides the abnormality monitoring apparatus in a kind of lift car, and it can carry out Unit Installation or initial setting simply.
The 3rd purpose of the present invention provides the abnormality monitoring apparatus in a kind of lift car, and it can tackle the mischief to photographic camera rapidly.
For realizing above-mentioned first purpose, first form is the abnormality monitoring apparatus in a kind of lift car, have with the opposed top position of elevator door on be provided with, take the photographic camera in the lift car, the unmanned image that this photographic camera is captured is as primary image, the photographic images of this primary image and described photographic camera relatively, detect and have or not the passenger, it is characterized in that, have: determinating area is lighted in illumination, it is set in upper end from the photographic images of described photographic camera in the regulation zone of below, is used to judge that extinguishing of illumination light; Door opens and closes the situation judging zone, and it is set near the closed end portion on the door top from the photographic images of described photographic camera the regulation zone, is used for the switching of decision gate; And occupant detection zone, it is set near the closed end portion of the student portion from the photographic images of described photographic camera in the regulation zone of below, be used for detecting and have or not the passenger, described illumination light in the determinating area judge illumination light, when described door opens and closes that decision gate is closed in the situation judging zone, detect by the described occupant detection zone of the captured image of described primary image and described photographic camera and to have or not the passenger.
Second form is in the abnormality monitoring apparatus in the lift car in first form, it is characterized in that, have: the illumination identifying unit, the brightness that the pixel of determinating area is lighted in the brightness of the pixel of its more described primary image and the described illumination that is arranged in the captured image of described photographic camera, the ratio of the pixel by luminance difference is arranged judge that extinguishing of described illumination light; Door opens and closes identifying unit, and the brightness of the pixel of its more described primary image and the described door that is arranged in the captured image of described photographic camera open and close the brightness of the pixel in situation judging zone, and the ratio of the pixel by luminance difference is arranged is judged described switching; And the occupant detection unit, the brightness of pixel in the brightness of the pixel of its more described primary image and the described occupant detection zone that is arranged in the captured image of described photographic camera, the ratio of the pixel by luminance difference is arranged is judged and is had or not described passenger.
The 3rd form is in the abnormality monitoring apparatus in the lift car in first or second form, it is characterized in that, determinating area is lighted in described illumination, described door opens and closes the situation judging zone and described occupant detection zone forms distinct area respectively, and described occupant detection zone is formed by the zone on the floor of crossing over described car.
The 4th form is in first to the 3rd form in the abnormality monitoring apparatus in any one lift car, it is characterized in that, described door opens and closes the lower end in situation judging zone, in the upper end of described door and between the upper end of the wind glass that is provided with on the described door, the upper end in described occupant detection zone is in the lower end of described door and between the lower end of the wind glass that is provided with on the described door.
In these first to fourth forms, primary image be will carry out and determinating area, three zones in door switching situation judging zone and occupant detection zone lighted for illumination with the Region Segmentation of the comparison of the image that obtains by photographic camera, and these zones are avoided from the zone of the wind glass that is provided with at door, can not be subjected to influence ground from the light such as daylight of wind glass to carry out opening and closing and judge and the anomaly monitoring of occupant detection, can guarantee higher reliability based on door.
In addition, for realizing above-mentioned second purpose, the 5th form is in the abnormality monitoring apparatus in the lift car in second form, it is characterized in that, has the primary image setup unit, its photographic images of the described photographic camera of lighting that described illumination identifying unit is detected at first illumination is as the ccasual primary image, the brightness of the pixel of the brightness of the pixel of the photographic images of more described photographic camera and described ccasual primary image, the ratio of the pixel that luminance difference is arranged when specified value is following as primary image.
The 6th form is in first to the 5th form in the abnormality monitoring apparatus in any one lift car, it is characterized in that, have: door closed end position detection unit, the pixel of the pixel of its more described primary image and the photographic images of described photographic camera detects the upper and lower end parts that the pixel of difference takes place respectively as closed end position on the door and student's closed end position; And regional setup unit, it goes up closed end position and student's closed end position according to described door, sets the subject pixels that described door opens and closes situation judging zone and described occupant detection zone from described primary image.
In these the 5th and the 6th forms, because can automatically carry out the setting of primary image or light determinating area, door opening and closing the setting with image comparison domain primary image that form of situation judging zone and occupant detection zone, so can not produce the operation of carrying out initial setting mistakenly simply by illumination.
In addition, for realizing the 3rd purpose, the 7th form is in the abnormality monitoring apparatus in the lift car in second form, to it is characterized in that having: central monitoring position, and it is unusual by communication line telemonitoring elevator; Camera direction determining unit, the judgement that it is lighted in the illumination of being undertaken by described illumination identifying unit and open and close a judgement that door that identifying unit carries out opens when continuing specified time by described door, variation has taken place in the shooting direction that is judged to be described photographic camera; Photographic camera abnormality juding unit when its judgement of extinguishing in the illumination of being undertaken by described illumination identifying unit continues specified time, is judged to be and has taken place in the described photographic camera unusually; And circular unit, at least one side's judgement had represented to take place unusual circular to described central monitoring position during its photographic camera of judging according to the variation of the shooting direction of being judged by described camera direction determining unit with by described photographic camera abnormality juding unit was unusual.
In the 7th form, when carrying out abominable mischief like that in spray paint on shooting direction that changes photographic camera or the part or with the camera lens of paper overlaid camera at camera lens, because judge these situations exactly, circulate a notice of to central monitoring position by the circular unit, so can tackle the unusual generation of photographic camera rapidly.
According to the present invention, the Region Segmentation of the comparison by will carrying out primary image and camera images is for determinating area is lighted in illumination, door opens and closes three zones in situation judging zone and occupant detection zone, and these zones are avoided from the zone of the wind glass that is provided with at door, can not be subjected to influence ground from the light such as daylight of wind glass to carry out opening and closing based on door judges and the anomaly monitoring of occupant detection, the misoperation that wind glass causes can be prevented, compared with prior art higher reliability can be guaranteed.
In addition, can also automatically carry out the setting of primary image or light determinating area, door opening and closing the setting with pixel comparison domain primary image that form of situation judging zone and occupant detection zone, compared with prior art can not produce the operation of carrying out initial setting mistakenly simply thus by illumination.
In addition, when carrying out abominable mischief like that in spray paint on shooting direction that changes photographic camera or the part or with the camera lens of paper overlaid camera at camera lens, can judge these situations like clockwork and, take place unusual so can tackle photographic camera rapidly to the central monitoring position circular.
Description of drawings
Fig. 1 is the block diagram of an embodiment of the abnormality monitoring apparatus in the expression lift car of the present invention.
Fig. 2 is the diagram of circuit of the initial setting process in the expression present embodiment.
Fig. 3 is the figure that is used for illustrating the image comparison domain in the image in the car that present embodiment has.
Fig. 4 is the figure that is used for illustrating the regional assignment procedure of present embodiment.
Fig. 5 is the diagram of circuit of the abnormality detection process in the expression present embodiment.
Fig. 6 be used for illustrating present embodiment because the figure of the photographic camera abnormality detection that mischief causes.
Fig. 7 is the figure that is used for illustrating that the delay of present embodiment detects.
Nomenclature
1 car; 2 photographic cameras; 3 image processing apparatus; The 3A digital conversion circuit; The 3B image processing part; 3C CPU; 3D RAM; 3E ROM; The 3F input/output unit; 4 outside circular unit; 5 communication lines; 6 central monitoring positions; 7; 7A closes the end in top; 7B closes the end in the bottom; 8 wind glasss; Determinating area is lighted in 9 illuminations; 10 open and close the situation judging zone; 11 floors; 12 occupant detection zones; 13 primary images; 24 existing images; 24A passenger; 25 difference images;
The specific embodiment
Be illustrated as the optimal morphology of implementing the abnormality monitoring apparatus in the lift car of the present invention below with reference to the accompanying drawings.
Fig. 1 is the block diagram of an embodiment of the abnormality monitoring apparatus in the expression lift car of the present invention, Fig. 2 is the diagram of circuit of the initial setting process in the expression present embodiment, Fig. 3 is the figure that is used for illustrating the image comparison domain in the image in the car that present embodiment has, Fig. 4 is the figure that is used for illustrating the regional assignment procedure of present embodiment, Fig. 5 is the diagram of circuit of the abnormality detection process in the expression present embodiment, Fig. 6 be used for illustrating present embodiment because the figure of the photographic camera abnormality detection that mischief causes, Fig. 7 is the figure that is used for illustrating that the delay of present embodiment detects.
As shown in Figure 1, present embodiment has: in lift car 1, be provided with, take the photographic camera 2 in the car 1; The image processing apparatus 3 that the graphicinformation that bonded assembly, basis are taken into from photographic camera 2 on this photographic camera 2 is carried out various processing described later and the situation of the unusual generation in the cars 1 is resolved in various processing from these; The outside circular of bonded assembly unit 4 on image processing apparatus 3; And by the central monitoring position 6 of communication line 5 with the unusual generation of these circular unit, outside 4 bonded assemblys, telemonitoring elevator.
Abnormality detection in the so-called car 1 mainly is that the detection elevator stops and whether door closing state people when certain hour is above exists.That is be that delay in such car 1 such as falling down of being caused by disease in car 1 or suspicious person's ambuscade etc. detects.This delay detect be with in advance RAM 3D stored as car 1 in the brightness of pixel of the brightness of pixel of the background image of unmanned camera images that is primary image and the image that is taken into from photographic camera 2 compare, when the pixel count of the pixel that luminance difference is arranged existed above threshold value, being judged as had goods or people to exist in car 1.
Use Fig. 2 that the initial setting of the primary image in the present embodiment is described below.The CPU 3C of image processing apparatus 3 abides by program stored execute exception detection processing in ROM 3E when receiving the instruction that takes place with specific time interval, after image processing apparatus 3 starting immediately all sign, counting machine and time meter (timer) be initialized as 0, begin to handle.
At first, carry out it being stored in (step SA01) among the RAM3D as existing image, confirm the state (step SA02) of background indicia from being taken into of the image information of photographic camera 2.Here, in background indicia, state 0 is the state of no primary image, state 1 is the state that primary image is arranged, have this two states, but, in RAM 3D, store (step SA03) as primary image so will show copying image because initial condition is a state 0, make background indicia be changed to 1, and beginning Measuring Time (step SA04).
Then, the brightness of the pixel of the existing image that CPU 3C relatively obtains through image processing part 3B from photographic camera 2 and the brightness (step SA05) of storing the pixel of the primary image the RAM 3D at step SA03 into, it is identical with primary image to be judged as existing image in the ratio of the pixel that luminance difference is arranged when specified value is following, output " indifference ", it is different with primary image to be judged as existing image when the ratio of the pixel that luminance difference is arranged surpasses specified value, output " difference is arranged ".In addition, in the time can not carrying out the judgement of " difference is arranged " or " indifference ", for example the generation illumination is extinguished or is glimmered in car 1, exports " failing to understand " (step SA06) when image and primary image also obviously are judged to be " difference is arranged " even relatively show.Here, so-called " difference is arranged " expression has existing image not lie in image in the primary image, has retentates such as passenger or goods in car 1.To be the illumination described later mean flow rate of lighting determinating area 9 light the threshold value of judgement when following in illumination to the decision method of " failing to understand ".
In addition, when in above-mentioned step SA06, exporting " indifference ", carry out the renewal (step SA07) of not shown indifference counting machine "+1 ", when output " difference is arranged ", carry out the not shown renewal that difference counting machine "+1 " is arranged (step SA08), when " failing to understand ", not shown indifference counting machine and not shown having in the difference counting machine are not upgraded.
Not shown when the renewal of difference counting machine "+1 " is arranged when carrying out at above-mentioned steps SA08, confirm that not shown door sets the state (step SA09) of sign.Here, the state of not shown setting sign, " state 0 " is whether the uncertain primary image of primary image correctly is the state in judging, " state 1 " is the state that primary image is determined, but under initial condition, formally determine because of primary image, so skip step SA10 and the step SA11 that handles as the setting in door switching situation judging zone and occupant detection zone described later, transfer to step SA12 described later.In addition because difference counting machine, indifference counting machine are arranged, be that 1 second, judgement time are that 60 times comparison process is carried out in a timesharing so for example establish the cycle that is taken into of image for a picture count 1, the indifference counting machine and the difference counting machine arranged and become 60 times.But, be the situation that in the comparative result of step SA06, does not have " failing to understand ".
Then confirm the state (step SA12) of not shown door setting sign, because initial condition is " state 0 ", so in the process of the time that step SA04 begins, the elapsed time (step SA13) of affirmation after step SA03 makes primary image, through specified time for example 60 seconds the time, the indifference counting machine that calculating is upgraded at step SA07 and the difference counting machine arranged what step SA08 upgraded, being judged as difference when differentiated ratio surpasses the ratio of regulation detects, when the ratio of regulation is following, be judged as indifference and detect (step SA14), when being judged as the difference detection, make background indicia be reset to " state 0 " (step SA15), return step SA01 and carry out being taken into of primary image, set sign and be updated to " state 1 " being judged as to make when indifference detects, allow to move to the door open and-shut mode situation judging zone of step SA10 and (step SA16) handled in the setting in occupant detection zone.
In addition, at step SA16 processing after primary image is determined has been described.Be set at 1 back and finishing single treatment door being set sign, be taken into after the cycle for example waits for one second, handling from step SA01 again at next image.When this moment, primary image was determined, because setting sign, background indicia and door become " 1 " respectively, so carry out processing with the order of step SA01, step SA02, step SA04, step SA05, step SA06.Then, when step SA06 is judged as " indifference " or " failing to understand ", become " 1 " because door is set sign, thus from step SA12 to finishing branch, be judged to be at step SA06 that " difference is arranged " is preceding repeats identical processing.
Here, after the background of step SA16 is determined,, after step SA09 confirms that door is set the state of sign, advance to step SA10 and carry out a setting in switching situation judging zone and the setting in occupant detection zone when when the first judgement of step SA06 has difference.
Use Fig. 3, Fig. 4 explanation to open and close the setting in situation judging zone and occupant detection zone as the door of the processing of step SA10 and step SA11 below.
Fig. 3 represent photographic camera 2 capture gate, 7 sides that are provided with from door 7 opposed side plates top with car 1 and image, wind glass 8 is set on door 7, see the situation of platform from car 1 penetrating window glass 8.Like this, if wind glass 8 is set, when injecting the light time, carry out misinterpretation because in the image of photographic camera 2 and primary image, produce difference, on door 7 so need to eliminate influence by the light such as daylight of wind glass 8 from window.
In addition because the illumination in car 1 relatively image and the primary image taken of photographic camera 2 is not nonsensical when not lighting, whether light so must detect the illumination of car 1.Here, if in the zone of more leaning on than the upper end of the door 7 nearest, promptly near the image top at photographic camera 2 apart from not shown overhead illumination, setting is lighted the illumination in the zone of extinguishing and is lighted determinating area 9 as detecting illumination, and then illumination lights the influence that the detection of extinguishing does not allow to be subject to the light injected from wind glass.Because the top that determinating area 9 is positioned at image is lighted in this illumination, so, when being arranged on photographic camera 2 in the car 1, do not need to set once more as long as preestablish the locations of pixels number.
In addition, have the passenger to car 1 up and down the time because the image of photographic camera 2 is obviously different with primary image, so must whether close by detecting gate 7 in order to detect the stayer.Here, the door that carries out the switching detection of door 7 opens and closes situation judging zone 10, need be the mode from the light of wind glass 8 and passenger's reaction not being arranged on the top of door 7, but because detect sub section post need be the regulation zone of the 7A of top closed end portion that comprises door 7.For example, the lower end that makes this switching situation judging zone 10 is in the upper end of door 7 and between the upper end of this wind glass 8 that is provided with on 7.
In addition, the occupant detection of car 1, because as long as compare near the image of ground board of car 1, so that the lower end in occupant detection zone 12 is near the image bottom of photographic camera 2, between the bottom of the bottom of door 7 and wind glass 8, set the upper end in this occupant detection zone 12, and cross in the zone on floor 11 promptly wide about being set in than floor 11.In the occupant detection zone of setting like this 12, do not allow to be subject to the influence of wind glass 8.
Door opens and closes the setting in situation judging zone 10 and occupant detection zone 12, and the size of the width of car 1 or door 7 is pressed each car 1 and difference.According to Fig. 4 the step SA10 of above-mentioned Fig. 2 and these zone settings among the step SA11 are described.
At first, in the photographic images of the primary image 13 of the door closure state of car 1 and photographic camera 2, door closing image 14 when the closed condition of carrying out door 7, the door of the beginning open mode of door 7 begins to open image 15, the half-open image 16 of door of the half-open position of door 7, when each of the door standard-sized sheet image 17 of the full-gear of door 7 and the difference of primary image 13, the difference of door closing image 14 is identical, can obtain indifference map as 18 as image, the image that the difference that door begins to open image 15 begins to open part 15A difference as door can obtain beginning to open difference image 19, the difference of the half-open image 16 of door can obtain the half-open difference image 20 of door as the image of the half-open part 16A difference of door, and the difference of door standard-sized sheet image 17 can obtain a standard-sized sheet difference image 21 as the image of door standard-sized sheet part 17A difference.In addition, so-called Differential Detection is the step SA05 of above-mentioned Fig. 2, the processing of SA06, so omit explanation.
Here, begin to open in the difference image 19 at door, will be according to beginning to open the location number of the corresponding image of the top 7A of closed end portion of part 15A with door the location number of predefined defined amount be set at and open and close a situation judging zone 10, will according to door begin to open part 15a the corresponding image of the bottom 7B of closed end portion location number and the location number of predefined defined amount is set at occupant detection zone 12, to and these location numbers that open and close situation judgings zone 10 and occupant detection zone 12 corresponding images carry out between the image of primary image 13 and photographic camera 2 differential ratio, corresponding to door switching identifying unit and occupant detection unit.In addition, illumination is similarly lighted each image difference of determinating area 9 relatively corresponding to the illumination identifying unit.
In addition, illustrated about carrying out a process that opens and closes the setting in situation judging zone 10 and occupant detection zone 12 automatically, but also can on input/output unit 3F, connect not shown Personal Computer, on one side with reference to the primary image 13 that on monitoring device, shows, manual input gate opens and closes situation judging zone 10, occupant detection zone 12 and illumination and lights determinating area 9 on one side, and these zones are set.
Use Fig. 5～Fig. 7 that detection, the stayer in the car 1 and the detection of retentate of the unusual generation of photographic camera 2 are described below.
At first as shown in Figure 5, be taken into the existing image of photographic camera 2, (step SB01), the door that opens and closes the Differential Detection in situation judging zone 10 by the door that carries out this existing image and primary image 13 opens and closes the switching (step SB02) that identifying unit comes decision gate.
Be judged as " difference is arranged " at step SB02 and be judged to be door 7 when opening, removing has difference counting machine, indifference counting machine, time meter to be made as " 0 " (step SB03), outside circular unit 4 step SB04 reset), will carry out detecting and indicate and be set at " 1 " (step SB05) at opening of the processing of the comparative result of the existing image of primary image and photographic camera 2.
Here, when being judged as " door open " at step SB02, also carry out the inspection whether the shooting direction of photographic camera 2 departs from.Use Fig. 6 that the judgement of the shooting deviation in driction of this photographic camera 2 is described.
In Fig. 6, can judge that according to the Differential Detection of the existing image of photographic camera 2 and primary image 13 project of the situation in the car 1 is that the switching of door 7 is judged and lighting of illumination extinguished judgements, made up the interior situation judging of these car 1 and the situation judging of photographic camera 2.
At first, as first state, because the door closing image 14 of door 7 closing state has continuation in the detected state that the door of lighting and open and close by door situation judging zone 10 of illumination is closed, so can close by decision gate 7.Here,, begin for example to extinguish illumination after 5 minutes, continuation is still arranged in during 5 minutes through specified time even be set at elevator-calling never about illumination.
As second state, be that door 7 is in the switching then, the half-open image 16 of door of door 7 half-open positions is lighted in the detected state that the door that opens and closes situation judging zone 10 by door opens in illumination does not have continuation, can decision gate 7 in switching.
Then as the third state, the illumination illumination of extinguishing is extinguished image 22 because the door of primary image 13 opens and closes in the image of situation judging zone 10 and photographic camera 2 obviously different, so detecting door when carrying out Differential Detection opens, and, extinguish so can judge illumination because the detection of extinguishing of illumination has continuation till the generation elevator-calling.
Then as four condition, the photographic camera slip chart of the shooting deviation in driction of photographic camera 2 is as 23, opening and closing situation judging zone 10 and photographic camera slip chart at the door of primary image 13 opens and closes as 23 door and detects door in the Differential Detection in situation judging zone 10 and open, and begin the continuation that for example has the illumination of detecting to light till 5 minutes through specified time up to elevator-calling never, the same with above-mentioned first state, door has continuation, can judge departing from of photographic camera 2.In addition, when on the camera lens of photographic camera 2, spraying coating or pasting strip of paper used for sealing, because the open mode of extinguishing state and door 7 of illumination continues, so even also can determine under these circumstances with atomizing cone.
Judgement in the above-mentioned four condition, because open at step SB02 decision gate 7, at step SB05 door is opened the detection sign and be set at " 1 ", lighting of judgement illumination extinguished, so light differential ratio (step SB06) in the determinating area 9 when carrying out primary image 13 and the illumination of the existing image of photographic camera 2, when judging lighting of throwing light on, door is opened illumination ON counting machine add "+1 " (step SB07), to compare (step SB08) in the value and the predefined setting value (threshold value) of step SB07 counting, if in setting value with the next step SB01 that returns, judgement by the illumination ON that carries out at step SB06 or open the additive operation of illumination ON counting machine at the door of step SB07, judging throws light on extinguishes the continuation of door 7 states of opening, when opening illumination ON Counter Value at step SB08 decision gate above setting value, the shooting direction of judging photographic camera 2 changes, as the outside circular of " photographic camera departs from " starting unit 4, carry out circular (step SB09) to central monitoring position 6 by communication line 5.
Be judged to be door 7 when closing when be judged as " indifference " at step SB02, remove door and open illumination ON counting machine (step SB10), judge whether Men Gang closes (step SB11).Here, because what switch to door closure state from the door open mode at step SB02 is that Men Gang closes at first, close so be judged to be Men Gang.
Then, when being judged to be Men Gang at step SB11 when closing, the processing below for example implementing after 3 seconds after at the appointed time.Its reason is, even when step SB11 decision gate has just been closed in the door switching situation judging zone 10 of the image of taking with photographic camera 2 and primary image 13 during indifference, the not shown switch that is provided with on door 7 may not drop into door 7 and may not cut out really, if after the SB11 decision gate has just been closed,, can consider that then door 7 closes really through the of short duration time.
Then starting is as for example 2 minutes the time meter (step SB12) that is detained the judgement time of detecting.
Next, relatively from the brightness (step SB13) of the pixel in the occupant detection zone 12 of the brightness of the pixel in the occupant detection zone 12 of the existing image of photographic camera 2 and primary image 13.It is identical with primary image 13 to be judged as existing image in the ratio of the pixel that luminance difference is arranged when specified value is following, output " indifference ", and it is different with primary image 13 to be judged as existing image when the ratio of the pixel that luminance difference is arranged surpasses specified value, exports " difference is arranged ".As shown in Figure 7, when having passenger 24A to exist, there is the lower part of the body 25A of passenger 24A in differentiated picture in the occupant detection zone 12 of difference image 25 in existing image 24.In addition, in the time can not carrying out the judgement of " difference is arranged " or " indifference ", illumination in the car 1 for example takes place extinguishes or glimmers, the mean flow rate that determinating area 9 is lighted in illumination is when the specified value (threshold value) that illumination is judged, even that is export " failing to understand " (step SB14) when relatively now image also obviously is judged to be " difference is arranged " with primary image 13.
Then when step SB14 is judged to be " indifference ", the indifference counting machine is added "+1 " (step SB15), when being judged to be " difference is arranged ", will have the difference counting machine to add "+1 " (step SB16).
Then respectively in step SB14 output " fail to understand " back, the indifference counting machine is added "+1 " back at step SB15, after step SB16 will have the difference counting machine to add "+1 ", the sign that whether is detained the processing that the detects result of determination state that promptly detects sign is the inspection (step SB17) of " 0 " or " 1 ".
When the state that detects sign is " 0 ", return step SB08, the image that carries out step SB01 is taken into, the processing of repeating step SB01～step SB16 (not implementing the processing of step SB18 described later～step SB22).
In addition, when the state that detects sign is " 1 ", judge whether the value of the time meter that starts at step SB12 becomes the judgement time (step SB18) that predefined delay detects.Here, not passing through specified time for example 2 minutes the time, return step SB08, the image that carries out step SB01 is taken into, the processing of repeating step SB01～step SB17.
In addition, at step SB18, when the time meter starting from step SB12 in the time of 2 minutes, is carried out the judgement (step SB19) that the delay in the car 1 detects through specified time.The judgement that the delay of carrying out at step SB19 detects, to have the difference Counter Value with respect to the indifference Counter Value behind step SB15 counting and behind step SB16 counting the difference Counter Value arranged and surpass regulation ratiometric situation and be judged to be " delay is arranged ", the situation of difference Counter Value below the ratio of regulation will be arranged as " do not have and be detained ".
When step SB19 was judged to be " delay is arranged ", the outside circular of starting unit 4 detected (step SB20) to the delay by communication line 5 bonded assembly central monitoring positions 6 circular cars 1.In addition, when being judged to be " do not have and be detained " at step SB19, carry out photographic camera 2 captured existing images 24 are handled (step SB21) as the primary image renewal of primary image 13.
Then, be detained to detect when being judged to be " fail to understand " at step SB19 respectively, step SB20 to behind the circular of central monitoring position 6, step SB21 primary image upgrade handle enforcement after, the state that the sign that whether is detained the processing that detects result of determination is promptly detected sign is made as " 0 ", is not detained the processing that detects result of determination before next detecting gate is opened.
In the present embodiment, the illumination identifying unit is corresponding to the step SB06 of Fig. 5, the processing of SB07, door opens and closes the processing of identifying unit corresponding to step SB02, the occupant detection unit is corresponding to step SB13～SB16 of Fig. 5, the processing of SB19, primary image setup unit, door closed end position detection unit and regional setup unit are corresponding to step SA10, the SA11 of Fig. 2, camera direction determining unit and photographic camera abnormality juding unit are corresponding to step SB06～SB09 of Fig. 5, and the circular unit is corresponding to SB09, the SB20 of Fig. 5.
As mentioned above, according to present embodiment, relatively the mean flow rate of determinating area 9 is lighted in the illumination of primary image 13 mean flow rate of lighting determinating area 9 and the illumination of existing image 24, when the mean flow rate of lighting determinating area 9 in the illumination of existing image 24 is lower than the regulation ratio with respect to the mean flow rate of the lighting point bright area 9 of primary image 13, extinguish because detecting illumination, so the illumination judgement of lighting does not allow to be subject to the influence that the daylight of coming in thoroughly from wind glass 8 etc. disturbs.
In addition, starting from device, with detect at first the image lighted of illumination as the ccasual primary image after, carry out and the Differential Detection that shows image with the predetermined distance stipulated number, in differentiated detection with respect to stipulated number at the ratio of regulation when following, because the ccasual primary image is stored as primary image 13, after the setting of primary image 13 is being finished in device starting back, carry out the Differential Detection of primary image 13 and existing image 24 with predetermined distance, to detect the topmost of difference generation area of existing image 24 of difference at first as the 7A of top closed end portion of door 7, with foot as the bottom closed end 7B of portion, carry out a setting that opens and closes surveyed area 10 from the 7A of top closed end portion of door 7, the 7B of portion carries out the setting in occupant detection zone 12 from the bottom closed end, so can easily carry out on-the-spot adjustment.
In addition, light in illumination and to judge and door is opened and judged when continuing, the shooting deviation in driction that detects photographic camera 2 by outside circular unit 4 to central monitoring position 6 circulars, so can realize promptly tackling.
In addition, in the present embodiment as shown in Fig. 3 waits, door 7 by about two two boards of opening constitute, but this door 7 also can be made of two four blocks of plates opening, can also be by left or (one or more all can) formation of right one-sided unlatching.In the elevator that constitutes like this, also can access the action effect identical with present embodiment.
Claims (11)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-200834 | 2007-08-01 | ||
| JP2007200834 | 2007-08-01 | ||
| JP2007200834A JP5022809B2 (en) | 2007-08-01 | 2007-08-01 | Abnormality monitoring device in elevator car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101357726A CN101357726A (en) | 2009-02-04 |
| CN101357726B true CN101357726B (en) | 2010-12-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810082379XA Active CN101357726B (en) | 2007-08-01 | 2008-03-04 | Abnormality monitoring device in elevator car |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5022809B2 (en) |
| CN (1) | CN101357726B (en) |
| HK (1) | HK1128671A1 (en) |
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| JP6096695B2 (en) * | 2014-03-19 | 2017-03-15 | 株式会社日立ビルシステム | In-car behavior detector |
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| JP6219247B2 (en) * | 2014-08-11 | 2017-10-25 | 株式会社日立ビルシステム | Video surveillance device |
| 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 |
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| CN109626171B (en) * | 2019-02-27 | 2020-08-11 | 广州广日电梯工业有限公司 | Safety control method for elevator car and safety control device for elevator car |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2009035375A (en) | 2009-02-19 |
| HK1128671A1 (en) | 2009-11-06 |
| CN101357726A (en) | 2009-02-04 |
| JP5022809B2 (en) | 2012-09-12 |
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