CN101386385A - Elevator control method and apparatus - Google Patents
Elevator control method and apparatus Download PDFInfo
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- CN101386385A CN101386385A CNA2008102254115A CN200810225411A CN101386385A CN 101386385 A CN101386385 A CN 101386385A CN A2008102254115 A CNA2008102254115 A CN A2008102254115A CN 200810225411 A CN200810225411 A CN 200810225411A CN 101386385 A CN101386385 A CN 101386385A
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Abstract
The invention discloses a method for controlling an elevator. The method is as follows: images about situations in the elevator are shoot by a camera which is arranged in the elevator in real time; when the elevator is needed to be controlled, whether the current gross weight borne by the elevator is less than the threshold value of a preset bearing limit weight is determined; if so, then further according to the analytic result on the images, whether available seat space is still existed in the elevator is determined; if the available seat space is still existed, then the elevator is controlled to be stopped in floors where some people want to take the elevator and some people want to get off the elevator; if the available seat space is not existed, then the elevator is controlled to be stopped only in floors where some people want to get off the elevator. The invention discloses a device for controlling the elevator. The method and the device provided by the invention are applied to better improve the running efficiency of the elevator.
Description
Technical field
The present invention relates to control technology, particularly a kind of elevator control method and device based on camera.
Background technology
At present, elevator has become people and has gone up main tool downstairs, and many skyscrapers all are equipped with one one even multi-section elevator such as office building etc.For the safety of moving, common every elevator all has the overload measuring ability based on weight, that is to say, if the total weight of people of being carried in the elevator and/or goods reaches predefined limit supporting power threshold value, then control system can think that elevator is full, thereby alarms.In this case, though have the people certain floor by on the button of going downstairs, if unmanned under this floor elevator, elevator can not stopped at this floor yet so.
But, may there be such situation in actual applications: be covered with people and/or goods in the elevator, be not had in the elevator to take the space, but, because people's height is shorter, or cargo density is lower, or reason such as cargo height is less, makes the total weight of people that elevator carried and/or goods not reach the limit supporting power threshold value of elevator.In this case, if someone certain floor by on the button of going downstairs, then elevator can be stopped at this floor, but in fact owing to do not had to take the space in the elevator, that is to say, can not continue to go up the people, so, just have to carry out following a series of unnecessary operation: elevator parking, open the door; The people who desires to take a lift finds that elevator is full, abandons taking this elevator; Elevator is closed the door and is continued operation.At peak load conditions on and off duty,, then can reduce the operating efficiency of elevator greatly if this situation often takes place.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of elevator control method, can improve the operating efficiency of elevator preferably.
Another object of the present invention is to provide a kind of elevator control gear, can improve the operating efficiency of elevator preferably.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of elevator control method, by being installed on the real-time image of taking about situation in the elevator of camera in the elevator, when needs were controlled elevator, this method comprised:
Whether the total weight of determining to be carried in the current elevator is less than predefined limit supporting power threshold value;
If, then, determine whether to still have in the described elevator and can take the space further according to the result that described image is analyzed, can take the space if still have, then controlling described elevator is having human desires to take elevator and is having the floor of elevator under the human desires all to stop; If do not have to take the space, then control described elevator and only stop at the floor that elevator under the human desires is arranged.
Wherein, whether the result that described foundation is analyzed described image, determine to still have in the described elevator and can take the space and comprise:
Add up the number of people number in the described image, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value; If then determining does not have to take the space in the described elevator; Otherwise, determine to still have in the described elevator and can take the space;
Perhaps,
Carry out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold; If then determining does not have to take the space in the described elevator; Otherwise, determine to still have in the described elevator and can take the space;
Perhaps,
Add up the number of people number in the described image, and whether judge the number of people number that counts, if then determining does not have to take the space in the described elevator more than or equal to predefined fixed number threshold value; Otherwise, further carry out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold, if, then determining does not have to take the space in the described elevator, otherwise, determine to still have in the described elevator and can take the space;
Perhaps,
Carry out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold; If then determining does not have to take the space in the described elevator; Otherwise, further add up the number of people number in the described image, and whether judge the number of people number that counts, if then determining does not have to take the space in the described elevator more than or equal to predefined fixed number threshold value; Otherwise, determine to still have in the described elevator and can take the space.
Preferably, the visible ground areal analysis of carrying out elevator of the described image of described foundation comprises:
Earth background model when being empty according to the elevator of setting up is in advance cut apart described image, obtains prospect of being made up of people and/or goods and the background of being made up of visible ground;
Calculate visible floor area in the described elevator according to segmentation result.
Wherein, earth background model when the elevator that described basis is set up in advance is empty, described image cut apart comprise: described image and described earth background model are compared, with in the described image with described earth background model in identical part as the background that is partitioned into, with part different in the described earth background model as the prospect that is partitioned into;
The described visible floor area of calculating in the described elevator according to segmentation result comprises: the proportion in entire image of the background parts in the image after the computed segmentation, actual ground area according to proportion and known described elevator calculates the visible floor area in the described elevator.
A kind of elevator control gear, this device comprises: weight induction unit, image analyzing unit and control unit;
Described weight induction unit, whether be used for determining total weight that current elevator carried less than predefined limit supporting power threshold value, if, then to described control unit send elevator less than notification message, otherwise, send the full notification message of elevator to described control unit;
Described image analyzing unit, be used for the image about situation in the elevator that the camera that is installed on described elevator photographs is analyzed, can take the space to determine whether to still have in the described elevator, if have, then to described control unit send elevator less than notification message, otherwise, send the full notification message of elevator to described control unit;
Described control unit, be used to receive notification message from described weight induction unit, and be elevator when described notification message less than the time, the notification message of further determining to be received from described image analyzing unit is that elevator is less than still elevator is full, if elevator less than, then controlling described elevator is having human desires to take elevator and have the floor of elevator under the human desires all to stop; If elevator is full, then controls described elevator and only stop at the floor that elevator under the human desires is arranged.
Wherein, described image analyzing unit comprises: analyze subelement and notice subelement;
Described analysis subelement is used for described image is analyzed, and can take the space to determine whether to still have in the described elevator, and will determine that the result sends to described notice subelement;
Described notice subelement is used to receive the definite result from described analysis subelement, and when described definite result when not having to take the space in the elevator, send the full notification message of elevator to described control unit; When definite result can take the space for still having in the elevator, to described control unit send elevator less than notification message.
Preferably, comprise in the described analysis subelement: number of people count sub-element or areal analysis subelement;
Described number of people count sub-element, be used for adding up the number of people number of described image, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value, if, then determining does not have to take the space in the described elevator, otherwise, determine to still have in the described elevator and can take the space, and will determine that the result sends to described notice subelement;
Described areal analysis subelement, be used for carrying out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold, if, then determining does not have to take the space in the described elevator, otherwise, determine to still have in the described elevator and can take the space, and will determine that the result sends to described notice subelement.
Perhaps, comprise in the described analysis subelement: number of people count sub-element and areal analysis subelement;
Described number of people count sub-element, be used for adding up the number of people number of described image, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value, if, then determining does not have to take the space in the described elevator, and will determine that the result sends to described notice subelement, otherwise, notify described areal analysis subelement to carry out self function;
Described areal analysis subelement, be used for behind the notification message that receives described number of people count sub-element, carry out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold, if then determining does not have to take the space in the described elevator, otherwise, determine to still have in the described elevator and can take the space, and will determine that the result sends to described notice subelement.
Perhaps, comprise in the described analysis subelement: areal analysis subelement and number of people count sub-element;
Described areal analysis subelement, be used for carrying out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold, if, then determining does not have to take the space in the described elevator, and will determine that the result sends to described notice subelement, otherwise, notify described number of people count sub-element to carry out self function;
Described number of people count sub-element, be used for behind the notification message that receives described areal analysis subelement, add up the number of people number in the described image, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value, if then determining does not have to take the space in the described elevator, otherwise, determine to still have in the described elevator and can take the space, and will determine that the result sends to described notice subelement.
In addition, described areal analysis subelement further comprises when being used for carrying out the visible ground areal analysis of elevator according to described image:
Cut apart subelement, be used for described image and the elevator of setting up the in advance earth background model when empty is compared, with in the described image with described earth background model in identical part as the background that is partitioned into, with part different in the described earth background model as the prospect that is partitioned into;
Computation subunit is used for background parts proportion in entire image of the image after the computed segmentation, and the actual ground area according to proportion and known described elevator calculates the visible floor area in the described elevator.
As seen, adopt technical scheme of the present invention, under the situation of the total weight that in determining current elevator, is carried less than predefined limit supporting power threshold value, further according to the result of graphical analysis, whether determine to still have in the elevator and can take the space, if having, then controlling elevator is having human desires to take elevator and is having the floor of elevator under the human desires all to stop, if no, then controlling elevator only stops at the floor that elevator under the human desires is arranged; Though thereby avoided in the prior art elevator full, but because the total weight that is carried does not reach the limit supporting power threshold value of elevator, the process of the operation that it is unnecessary that thereby the elevator that causes has to constantly stop, open the door and close the door etc., and then improved the operating efficiency of elevator.
Description of drawings
Fig. 1 is the diagram of circuit of elevator control method embodiment of the present invention.
Fig. 2 is the diagram of circuit of the image analysis process among the inventive method embodiment.
Fig. 3 is the composition structural representation of elevator control gear embodiment of the present invention.
The specific embodiment
For solving problems of the prior art, a kind of brand new elevator controlling schemes is proposed among the present invention, be a kind of elevator aux. controls scheme: under the situation of the total weight that in determining current elevator, is carried less than predefined limit supporting power threshold value based on camera, further according to the result of graphical analysis, determine whether to still have in the elevator and can take the space, described image is the image of situation in the elevator that photographs in real time by the camera that is installed in the elevator, if have, then control elevator having human desires to take elevator and having the floor of elevator under the human desires all to stop, promptly control elevator and move according to normal mode; If no, then controlling elevator only stops at the floor that elevator under the human desires is arranged.So, though can avoid in the prior art elevator can't continue to go up the people, but because the total weight that elevator carried does not reach the limit supporting power threshold value of elevator, the process of unnecessary operation and the elevator that causes has to constantly stop, open the door and close the door etc., thus the operating efficiency of elevator improved preferably.
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Fig. 1 is the diagram of circuit of elevator control method embodiment of the present invention.As shown in Figure 1, may further comprise the steps:
Step 101: obtain the people that current elevator carries and/or the total weight of goods.
How to be retrieved as prior art, to repeat no more herein.
Step 102: whether the people that judgement gets access to and/or the total weight of goods be less than predefined limit supporting power threshold value, if then execution in step 103; Otherwise, execution in step 105.
In order to guarantee the safe in operation of elevator, each elevator has all been stipulated a limit supporting power threshold value when designing usually, if the total weight of people of being carried in the elevator and/or goods surpasses this limit supporting power threshold value, then may cause danger.So in this step, judge that at first whether people who gets access to and/or the total weight that obtains are less than predefined limit supporting power threshold value.
Step 103: the image that photographs by the camera that is installed in the elevator is analyzed, can be taken the space to determine whether to still have in the elevator, if then execution in step 104; Otherwise, execution in step 105.
In the prior art, all camera can be installed in each elevator usually, be used for monitoring in real time the situation in the elevator.In the present embodiment, whether the image that can utilize camera to photograph by it is analyzed, is determined to still have in the elevator and can be taken the space.Here the image of being mentioned of analyzing is meant the nearest image of image middle distance current time that camera is taken.
The image analysis method of being mentioned in the present embodiment can comprise: number of people method of counting and visible ground areal analysis method.In actual applications, can only adopt wherein an a kind of method to determine whether to still have in the elevator and can take the space, also two kinds of methods can be carried out combination, can take the space whether to still have in definite elevator.Need to prove, when adopting two kinds of modes that combine, in case having determined, preceding a kind of method do not have in the current elevator to take the space, then direct execution in step 105, have only current a kind of method to determine and still have in the current elevator in the time of can taking the space, definite process of the employing another kind method after just can continuing.
Suppose to adopt whole two kinds of methods in the present embodiment, and be to carry out number of people method of counting earlier in proper order, and then carry out visible ground areal analysis method, then as shown in Figure 2, the specific implementation of this step will may further comprise the steps:
Usually after the elevator manufacturing is finished, can set a fixed number threshold value according to its area, such as 18 people.When the number of being carried in the elevator reaches the fixed number threshold value, even elevator reaches limit supporting power threshold value, also may unnecessary take the space and can't continue to go up the people owing to not having, promptly increase the passenger.So in the present embodiment, can carry out number of people number statistical to the image that photographs, to know the total number of persons that is carried in the current elevator, judge that then whether the number of people number that counts is more than or equal to the fixed number threshold value that sets in advance, if, then illustrating has not had in the elevator to take the space, otherwise, illustrate to still have in the elevator and can take the space.
Number of people method of counting is a prior art, and have capitiform coupling, head relatively more commonly used are takeed on statistical methods such as coupling and training classifier, and specific implementation repeats no more.
When having article such as goods go-cart or carton in the elevator, though this moment elevator limit supporting power and fixed number all do not exceed set threshold value because these article have taken a large amount of floor area, so also possibly can't in elevator, continue the increase passenger.So in the present embodiment, can analyze the visible floor area in the elevator, and the visible floor area that will analyze and predefined area threshold compare, if the visible floor area that analyzes is less than or equal to predefined area threshold, then thinking has not had to take the space in the elevator; Otherwise, think to still have in the elevator and can take the space.
The visible ground areal analysis method that is adopted in the present embodiment can be: at first, earth background model when being empty according to the elevator of being set up, the image that photographs is cut apart, with prospect that obtains forming and the background of forming by visible ground by people and/or goods; Then, according to the visible floor area in the segmentation result calculating elevator.
Specifically, exactly image and the earth background model that photographs compared, with in the image that photographs with the earth background model in identical part as the background that is partitioned into, with part different in the earth background model as the prospect that is partitioned into; Background parts proportion in entire image in the image after the computed segmentation then, the actual ground area according to proportion and known elevator calculates the visible floor area in the elevator.As can be seen, said process subtracts image and the earth background model that photographs in fact exactly, subtracts each other the remaining part in back and is prospect.Wherein, how the background parts proportion in entire image in the image after the computed segmentation is known in this field, such as, the prospect and the background parts that are partitioned into can be carried out binaryzation, the equal assignment of each gray values of pixel points in the prospect of the being about to part is 255, with the equal assignment of each gray values of pixel points in the background parts is 0, and the number of adding up assignment then and be 0 pixel accounts for the percentum of the total pixel number of entire image.
Wherein, the earth background model can be set up in advance, and after setting up, can be by the predefined cycle, such as every day or per hour, constantly upgrade.When modeling, optimal situation is not carry any people and/or goods in the elevator just; But, under a lot of situations, can carry the people and/or the goods of some in the elevator, at this moment, can be by the multiple image analysis of obtaining continuously being set up required earth background model, principle is: for different images, the people of being carried in the elevator that is reflected and/distribution situation of goods can not be identical, that is to say, visible ground-surface distribution situation difference in the different images, so the comprehensive surface information visibly in the multiple image is set up the earth background model of elevator when empty.Follow-up, when needs carry out the areal analysis of visible ground, can be according to the earth background model of being set up, be partitioned into prospect and background parts in the image that photographs, further, by calculating background parts shared ratio in entire image, know the visible floor area in the current elevator.
Owing to can upgrade the earth background model at any time, the visible ground areal analysis method described in the present embodiment can not be subjected to the influence that the elevator earth background changes.Here the elevator earth background mentioned changes, and is meant that elevator spread carpet, changed the carpet pattern or the rainy day has increased situations such as ground cushion.
Need to prove that shown in Figure 2 only is casehistory, in actual applications, above-mentioned two kinds of methods all not necessarily can be accepted or rejected according to actual conditions, such as, if elevator does not allow to convey goods, then can remove the areal analysis of visible ground.In addition, for this situation that equals described in the step 1034, any one that can be in carrying out pairing two steps of "Yes" and "No" subsequently.
Step 104: the control elevator is having human desires to take elevator and is having the floor of elevator under the human desires all to stop process ends.
Step 105: the control elevator is only stopped process ends at the floor that elevator under the human desires is arranged.
So far, promptly finished the elevator control process one time.Follow-up, constantly repeat process shown in Figure 1 and get final product.Here the repetition of being mentioned can be meant periodically, as whenever obtain N two field picture (N is a positive integer) back or at regular intervals after, then repeat once process shown in Figure 1; Also can be meant pre-set condition, when satisfying condition,, then repeat once process shown in Figure 1 such as the every pass of elevator when door (then mean to have people's turnover because close the door, variation has taken place the situation in the elevator) once.
In addition, embodiment illustrated in fig. 1 in, be that the total weight of the people of being carried in determining current elevator and/or goods does not reach under the situation of limit supporting power threshold value, just go to carry out graphical analysis, the benefit of Chu Liing is to save calculated amount like this.But in actual applications, also can all carry out graphical analysis in all cases, reached limit supporting power threshold value if just determine the total weight of the people of being carried in the current elevator and/or goods, then do not go to comprehend the result of graphical analysis, when having only the total weight of the people of in determining current elevator, being carried and/or goods not reach limit supporting power threshold value,, determine whether to still have in the elevator and can take the space further according to the result of graphical analysis.
Based on said method, Fig. 3 is the composition structural representation of elevator control gear embodiment of the present invention.As shown in Figure 3, this device comprises: weight induction unit 31, image analyzing unit 32 and control unit 33.Wherein:
Wherein, can specifically comprise in the image analyzing unit 32: analyze subelement 321 and notice subelement 322;
Analyze subelement 321, be used for the image that photographs is analyzed, can take the space, and will determine that the result sends to notice subelement 322 to determine whether to still have in the elevator;
Further, also can comprise in the analysis subelement 321:
Number of people count sub-element 3211, the number of people number that is used for statistical picture, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value, if, then determining does not have to take the space in the elevator, otherwise, determine to still have in the elevator and can take the space, and will determine that the result sends to notice subelement 322;
Perhaps, areal analysis subelement 3212, be used for carrying out the visible ground areal analysis of elevator according to image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold, if then determining does not have to take the space in the elevator, otherwise, determine to still have in the elevator and can take the space, and will determine that the result sends to notice subelement 322.
Perhaps, also can comprise number of people count sub-element 3211 and areal analysis subelement 3212 simultaneously in the analysis subelement 321, wherein:
Number of people count sub-element 3211, the number of people number that is used for statistical picture, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value, if, then determining does not have to take the space in the elevator, and will determine that the result sends to notice subelement 322, otherwise notice areal analysis subelement 3212 is carried out self function; Areal analysis subelement 3212, be used for behind the notification message that receives number of people count sub-element 3211, carry out the visible ground areal analysis of elevator according to image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold, if then determining does not have to take the space in the elevator, otherwise, determine to still have in the elevator and can take the space, and will determine that the result sends to notice subelement 322;
Perhaps, areal analysis subelement 3212, be used for carrying out the visible ground areal analysis of elevator according to image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold, if then determining does not have to take the space in the elevator, and will determine that the result sends to notice subelement 322, otherwise notice number of people count sub-element 3211 is carried out self function; Number of people count sub-element 3211, be used for behind the notification message that receives areal analysis subelement 3212, number of people number in the statistical picture, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value, if then determining does not have to take the space in the elevator, otherwise, determine to still have in the elevator and can take the space, and will determine that the result sends to notice subelement 322.
In addition, control unit 33 also can be further used for, and when the notification message that is received from weight induction unit 31 is an elevator when having expired, the control elevator is only stopped at the floor that elevator under the human desires is arranged.
Have, areal analysis subelement 3212 shown in Figure 3 further comprises (for simplifying accompanying drawing, not shown) when being used for carrying out the visible ground areal analysis of elevator according to the image that photographs again: cut apart subelement and computation subunit, wherein:
Cut apart subelement, earth background model when being used for image that will photograph and the elevator of setting up in advance for sky compares, with in the image with the earth background model in identical part as the background that is partitioned into, with part different in the earth background model as the prospect that is partitioned into;
Computation subunit is used for background parts proportion in entire image of the image after the computed segmentation, and the actual ground area according to proportion and known elevator calculates the visible floor area in the elevator.
Certainly, in actual applications, also can further comprise other subelement in the areal analysis subelement 3212, such as, be used for the visible floor area that discriminatory analysis goes out and whether be less than or equal to predefined area threshold, to determine whether to still have the subelement that to take the space in the elevator and to be used to send the subelement of determining the result etc., because these all can be from above-mentioned about deriving the associated description embodiment illustrated in fig. 3, so repeat no more herein at an easy rate.
The concrete workflow of device embodiment shown in Figure 3 please refer to the respective description among the method embodiment illustrated in figures 1 and 2, repeats no more herein.
In a word, adopt technical scheme of the present invention, though avoided in the prior art elevator full, but because the total weight of people of being carried and/or goods does not reach the limit supporting power threshold value of elevator, the process of unnecessary operation and the elevator that causes has to constantly stop, open the door and close the door etc., thereby improved the operating efficiency of elevator preferably, particularly particularly evident for the more architectural effect of passengers such as peak load conditions on and off duty and office building.And, the camera that is used to monitor all is installed basically, so scheme of the present invention can not increase the equipment cost of existing elevator in the existing elevator.Have again, scheme of the present invention does not have exacting requirements for the angle of camera, but, for ease of carrying out graphical analysis, the riding position of camera should guarantee can comprise in its image that photographs all number of people and/or goods in the elevator, and can photograph ground segment, so camera preferably is installed in elevator top or top, elevator side; In addition, can be one also can be a plurality of to the number of camera.For image taken under the different angles, just may slightly change on the specific implementation of image analysis method itself, such as, when calculating visible floor area, may need to carry out certain conversion, but these are prior art, can have influence on the enforcement of scheme of the present invention.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of elevator control method is characterized in that, by being installed on the real-time image of taking about situation in the elevator of camera in the elevator, when needs were controlled elevator, this method comprised:
Whether the total weight of determining to be carried in the current elevator is less than predefined limit supporting power threshold value;
If, then, determine whether to still have in the described elevator and can take the space further according to the result that described image is analyzed, can take the space if still have, then controlling described elevator is having human desires to take elevator and is having the floor of elevator under the human desires all to stop; If do not have to take the space, then control described elevator and only stop at the floor that elevator under the human desires is arranged.
2, elevator control method according to claim 1 is characterized in that, whether the result that described foundation is analyzed described image determines to still have in the described elevator and can take the space and comprise:
Add up the number of people number in the described image, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value; If then determining does not have to take the space in the described elevator; Otherwise, determine to still have in the described elevator and can take the space;
Perhaps,
Carry out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold; If then determining does not have to take the space in the described elevator; Otherwise, determine to still have in the described elevator and can take the space;
Perhaps,
Add up the number of people number in the described image, and whether judge the number of people number that counts, if then determining does not have to take the space in the described elevator more than or equal to predefined fixed number threshold value; Otherwise, further carry out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold, if, then determining does not have to take the space in the described elevator, otherwise, determine to still have in the described elevator and can take the space;
Perhaps,
Carry out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out be less than or equal to predefined area threshold, if then determining does not have to take the space in the described elevator; Otherwise, further add up the number of people number in the described image, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value, if, then determining does not have to take the space in the described elevator, otherwise, determine to still have in the described elevator and can take the space.
3, elevator control method according to claim 2 is characterized in that, the visible ground areal analysis that the described image of described foundation carries out elevator comprises:
Earth background model when being empty according to the elevator of setting up is in advance cut apart described image, obtains prospect of being made up of people and/or goods and the background of being made up of visible ground;
Calculate visible floor area in the described elevator according to segmentation result.
4, elevator control method according to claim 3 is characterized in that, the earth background model of the elevator that described basis is set up in advance when empty cut apart described image and to be comprised:
Described image and described earth background model are compared, with in the described image with described earth background model in identical part as the background that is partitioned into, with part different in the described earth background model as the prospect that is partitioned into;
The described visible floor area of calculating in the described elevator according to segmentation result comprises:
Background parts in the image after computed segmentation proportion in entire image, the actual ground area according to proportion and known described elevator calculates the visible floor area in the described elevator.
5, a kind of elevator control gear is characterized in that, this device comprises: weight induction unit, image analyzing unit and control unit;
Described weight induction unit, whether be used for determining total weight that current elevator carried less than predefined limit supporting power threshold value, if, then to described control unit send elevator less than notification message, otherwise, send the full notification message of elevator to described control unit;
Described image analyzing unit, be used for the image about situation in the elevator that the camera that is installed on described elevator photographs is analyzed, can take the space to determine whether to still have in the described elevator, if have, then to described control unit send elevator less than notification message, otherwise, send the full notification message of elevator to described control unit;
Described control unit, be used to receive notification message from described weight induction unit, and be elevator when described notification message less than the time, the notification message of further determining to be received from described image analyzing unit is that elevator is less than still elevator is full, if elevator less than, then controlling described elevator is having human desires to take elevator and have the floor of elevator under the human desires all to stop; If elevator is full, then controls described elevator and only stop at the floor that elevator under the human desires is arranged.
6, elevator control gear according to claim 5 is characterized in that, described image analyzing unit comprises: analyze subelement and notice subelement;
Described analysis subelement is used for described image is analyzed, and can take the space to determine whether to still have in the described elevator, and will determine that the result sends to described notice subelement;
Described notice subelement is used to receive the definite result from described analysis subelement, and when described definite result when not having to take the space in the elevator, send the full notification message of elevator to described control unit; When definite result can take the space for still having in the elevator, to described control unit send elevator less than notification message.
7, elevator control gear according to claim 6 is characterized in that, comprises in the described analysis subelement: number of people count sub-element or areal analysis subelement;
Described number of people count sub-element, be used for adding up the number of people number of described image, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value, if, then determining does not have to take the space in the described elevator, otherwise, determine to still have in the described elevator and can take the space, and will determine that the result sends to described notice subelement;
Described areal analysis subelement, be used for carrying out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold, if, then determining does not have to take the space in the described elevator, otherwise, determine to still have in the described elevator and can take the space, and will determine that the result sends to described notice subelement.
8, elevator control gear according to claim 6 is characterized in that, comprises in the described analysis subelement: number of people count sub-element and areal analysis subelement;
Described number of people count sub-element, be used for adding up the number of people number of described image, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value, if, then determining does not have to take the space in the described elevator, and will determine that the result sends to described notice subelement, otherwise, notify described areal analysis subelement to carry out self function;
Described areal analysis subelement, be used for behind the notification message that receives described number of people count sub-element, carry out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold, if then determining does not have to take the space in the described elevator, otherwise, determine to still have in the described elevator and can take the space, and will determine that the result sends to described notice subelement.
9, elevator control gear according to claim 6 is characterized in that, comprises in the described analysis subelement: areal analysis subelement and number of people count sub-element;
Described areal analysis subelement, be used for carrying out the visible ground areal analysis of elevator according to described image, and whether the visible floor area that discriminatory analysis goes out is less than or equal to predefined area threshold, if, then determining does not have to take the space in the described elevator, and will determine that the result sends to described notice subelement, otherwise, notify described number of people count sub-element to carry out self function;
Described number of people count sub-element, be used for behind the notification message that receives described areal analysis subelement, add up the number of people number in the described image, and judge that whether the number of people number that counts is more than or equal to predefined fixed number threshold value, if then determining does not have to take the space in the described elevator, otherwise, determine to still have in the described elevator and can take the space, and will determine that the result sends to described notice subelement.
According to each described elevator control gear in the claim 7～9, it is characterized in that 10, described areal analysis subelement further comprises when being used for carrying out the visible ground areal analysis of elevator according to described image:
Cut apart subelement, be used for described image and the elevator of setting up the in advance earth background model when empty is compared, with in the described image with described earth background model in identical part as the background that is partitioned into, with part different in the described earth background model as the prospect that is partitioned into;
Computation subunit is used for background parts proportion in entire image of the image after the computed segmentation, and the actual ground area according to proportion and known described elevator calculates the visible floor area in the described elevator.
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| CNA2008102254115A CN101386385A (en) | 2008-10-29 | 2008-10-29 | Elevator control method and apparatus |
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| CNA2008102254115A CN101386385A (en) | 2008-10-29 | 2008-10-29 | Elevator control method and apparatus |
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| CNA2008102254115A Pending CN101386385A (en) | 2008-10-29 | 2008-10-29 | Elevator control method and apparatus |
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