CN115385210A - Method for determining defense area of visual light curtain, detection method, equipment and medium - Google Patents
Method for determining defense area of visual light curtain, detection method, equipment and medium Download PDFInfo
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- CN115385210A CN115385210A CN202211025025.8A CN202211025025A CN115385210A CN 115385210 A CN115385210 A CN 115385210A CN 202211025025 A CN202211025025 A CN 202211025025A CN 115385210 A CN115385210 A CN 115385210A
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- door
- area
- determining
- light curtain
- visual light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
- B66B13/26—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between closing doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/11—Region-based segmentation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/22—Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
Abstract
The invention discloses a method, a device and a medium for determining a defense area of a visual light curtain, wherein the method comprises the following steps: in the process of closing the elevator door, periodically acquiring image information of the elevator door; and determining the length of the region which is not closed between the elevator doors according to the image information, and calculating and determining the defense region of the visual light curtain by combining the width of the elevator doors. According to the method, the device and the medium for determining the defense area of the visual light curtain, provided by the invention, the length of the area which is not closed between the elevator doors is determined in a mode of periodically acquiring the image information of the elevator doors, and the defense area of the visual light curtain can be calculated and determined by combining the width of the elevator doors, so that the aim of dynamically adjusting the defense area of the visual light curtain is fulfilled, the condition of detection errors can be avoided, and the method, the device and the medium have wide market application prospects.
Description
Technical Field
The invention relates to the technical field of elevator light curtains, in particular to a method, equipment and a medium for determining a defense area of a visual light curtain.
Background
The traditional safety light curtain (also called safety grating) mainly judges whether an object exists or not through shielding, when the object exists in a door closing area, the light of the correlation type light curtain can be shielded, and at the moment, the safety light curtain can give a signal, so that the door is prevented from being closed.
Although the safety light curtain has a non-contact characteristic compared with a more backward safety touch panel, so that it may not function as if it were touched like the safety touch panel, so user experience may be better, the safety light curtain has a problem in that it has a certain blind area, i.e., it cannot effectively detect some fine objects, so that a machine vision-based visual light curtain is generated in a smooth manner.
However, the protection area of the existing machine vision-based visual light curtain is fixed and is not adjusted in real time, so that detection errors often occur.
Accordingly, there is a need for improvements in the art.
The above information is given as background information only to aid in understanding the present disclosure, and does not establish or acknowledge whether any of the above is available as prior art to the present disclosure.
Disclosure of Invention
The invention provides a method, a device and a medium for determining a defense area of a visual light curtain, which aim to overcome the defects of the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, the present invention provides a method of determining a defence area of a visual light curtain, the method comprising:
in the process of closing the elevator door, periodically acquiring image information of the elevator door;
and determining the length of the region which is not closed between the elevator doors according to the image information, and calculating and determining the defense region of the visual light curtain by combining the width of the elevator doors.
Further, in the method for determining the defense area of the visual light curtain, the elevator door comprises a landing door and a car door;
then, the step of determining the length of the region between the elevator doors which is not closed yet according to the image information and calculating and determining the defense region of the visual light curtain by combining the width of the elevator doors comprises:
judging whether the closing of the landing door is consistent with the closing of the car door or not according to the image information;
if so, determining the length of an area which is not closed between the landing door and any one of the car doors according to the image information, and calculating and determining a defense area of the visual light curtain by combining the landing door, the car doors and the sum of the widths of gaps between the landing door and the car doors;
and if not, determining the length of an area which is not closed yet between the landing door and the door which is closed faster in the car doors according to the image information, and calculating and determining the defense area of the visual light curtain by combining the sum of the widths of the landing door, the car doors and the gaps between the landing door and the car doors.
Further, in the method for determining a defense area of a visual light curtain, before the step of periodically acquiring image information of an elevator door during the closing of the elevator door, the method further comprises:
detecting whether the elevator door is closing;
if yes, executing the step of regularly acquiring the image information of the elevator door in the closing process of the elevator door;
and if not, determining the area of the elevator door in the sill as the defense area of the visual light curtain.
In a second aspect, the present invention provides a method for detecting an anti-pinch based on a visual light curtain, the method comprising:
determining a deployment area of the visual light curtain according to the deployment area determination method of the visual light curtain as described in the first aspect above;
judging whether an object exists in the defense area;
if so, controlling the elevator door to stop closing or reversely opening;
if not, the elevator door is controlled to be continuously closed.
In a third aspect, the present invention provides a system for determining a defence area of a visual light curtain, the system comprising:
the elevator door control device comprises an image acquisition module, a control module and a control module, wherein the image acquisition module is used for periodically acquiring image information of an elevator door in the closing process of the elevator door;
and the area calculation module is used for determining the length of an area which is not closed between the elevator doors according to the image information and determining a defense area of the visual light curtain by combining the width calculation of the elevator doors.
Further, in the system for determining the defense area of the visual light curtain, the elevator door comprises a landing door and a car door;
then, the region calculation module is specifically configured to:
judging whether the closing of the landing door is consistent with the closing of the car door or not according to the image information;
if so, determining the length of an area which is not closed between the landing door and any one of the car doors according to the image information, and calculating and determining a defense area of the visual light curtain by combining the sum of the widths of the landing door, the car doors and the gaps between the landing door and the car doors;
and if not, determining the length of an area which is not closed yet between the landing door and the door which is closed faster in the car doors according to the image information, and calculating and determining the defense area of the visual light curtain by combining the sum of the widths of the landing door, the car doors and the gaps between the landing door and the car doors.
Further, in the system for determining a defense area of a visual light curtain, the system further includes a closing detection module configured to:
detecting whether the elevator door is closed or not before the step of periodically acquiring the image information of the elevator door in the process of closing the elevator door;
if yes, executing the step of periodically acquiring the image information of the elevator door in the process of closing the elevator door;
and if not, determining the area of the elevator door in the sill as the defense area of the visual light curtain.
In a fourth aspect, the present invention provides an anti-pinch detection system based on a visual light curtain, the system comprising:
an area determination module, configured to determine a defense area of the visual light curtain according to the defense area determination method of the visual light curtain according to the third aspect;
the object judgment module is used for judging whether an object exists in the defense area;
the elevator door control module is used for controlling the elevator door to stop closing or reversely open if an object exists in the defense area; and if no object exists in the defense deployment area, controlling the elevator door to be continuously closed.
In a fifth aspect, the present invention provides a computer device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the method for determining a defense area of a visual light curtain according to the first aspect and the method for detecting anti-pinch based on the visual light curtain according to the second aspect when executing the computer program.
In a sixth aspect, the present invention provides a storage medium containing computer executable instructions executed by a computer processor to implement the method for determining a protection area of a visual light curtain as described in the first aspect and the method for detecting anti-pinch based on a visual light curtain as described in the second aspect.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the method, the device and the medium for determining the defense area of the visual light curtain, provided by the embodiment of the invention, the length of the area which is not closed between the elevator doors is determined by periodically acquiring the image information of the elevator doors, and the defense area of the visual light curtain can be calculated and determined by combining the width of the elevator doors, so that the purpose of dynamically adjusting the defense area of the visual light curtain is achieved, the situation of detection errors can be avoided, and the method, the device and the medium have wide market application prospects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for determining a defense area of a visual light curtain according to an embodiment of the present invention;
FIG. 2 is a functional block diagram of a system for determining a defense area of a visual light curtain according to a second embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating an anti-pinch detection method based on a visual light curtain according to a third embodiment of the present invention;
FIG. 4 is a schematic diagram of a functional module of an anti-pinch detection system based on a visual light curtain according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
In view of the above-mentioned defects of the existing technology for determining the protection area of the visual light curtain, the inventor of the present invention actively makes research and innovation based on the practical experience and professional knowledge which are abundant for many years in the industry and by using the theory, so as to create a feasible technology for determining the protection area of the visual light curtain, which is more practical. After continuous research, design and repeated trial and improvement, the invention with practical value is finally created.
Referring to fig. 1, fig. 1 is a schematic flow chart of a method for determining a defense area of a visual light curtain, which is applicable to a scene for determining a defense area of a visual light curtain applied to an elevator, according to an embodiment of the present invention, and the method is performed by a defense area determining system of a visual light curtain, which may be implemented by software and/or hardware and integrated inside an elevator. As shown in fig. 1, the method for determining a defense area of a visual light curtain may include the steps of:
s101, in the process of closing the elevator door, periodically acquiring image information of the elevator door.
The regular period refers to every preset time interval or every preset time point. The specific time interval or time point can be set arbitrarily by a skilled person according to an empirical value and an actual application scenario, and the embodiment is not limited in detail herein.
It should be noted that, in order to achieve the purpose of dynamically adjusting the defense area of the visual light curtain, the present embodiment periodically monitors the state of the elevator door in the whole closing process of the elevator door, so as to determine the defense area of the visual light curtain corresponding to different closing degrees of the elevator door. At different time points, the state of the elevator door is mainly reflected by the acquired image information of the elevator door, the image information of the elevator door can be acquired through a camera, the camera and the vision algorithm processor jointly form a vision light curtain, and the vision light curtain is arranged in the middle position above the inner side of the elevator car.
S102, determining the length of an area which is not closed between the elevator doors according to the image information, and calculating and determining a defense area of the visual light curtain by combining the width of the elevator doors.
It should be noted that the calculation formula in step S102 is: the length of the not yet closed area between the elevator doors, the width of the elevator doors.
Since the elevator door generally includes a landing door and a car door, and a gap region exists between the landing door and the car door, the width of the elevator door should specifically refer to the width of the landing door + the width of the car door + the width of the gap region existing between the landing door and the car door.
In this embodiment, further, the step S102 may be specifically detailed as including the following steps:
(1) Judging whether the closing of the landing door is consistent with the closing of the car door or not according to the image information;
(2) If so, determining the length of an area which is not closed between the landing door and any one of the car doors according to the image information, and calculating and determining a defense area of the visual light curtain by combining the landing door, the car doors and the sum of the widths of gaps between the landing door and the car doors;
(3) And if not, determining the length of an area which is not closed yet between the landing door and the door which is closed faster in the car doors according to the image information, and calculating and determining the defense area of the visual light curtain by combining the sum of the widths of the landing door, the car doors and the gaps between the landing door and the car doors.
It should be noted that, in consideration of the case that the closing of the landing door and the closing of the car door may be consistent or may not be consistent, the present embodiment provides a corresponding method for calculating and determining the defense area of the visual light curtain for both of the two possibilities.
If the closing of the landing door is consistent with the closing of the car door, the defense area of the visual light curtain determined by calculation is the same no matter which door is taken as reference, namely the calculation formula at the moment is as follows: the length of the region between the landing doors which is not closed is the sum of the widths of the landing doors, the car doors and the gaps between the landing doors and the car doors, or the length of the region between the car doors which is not closed is the sum of the widths of the landing doors, the car doors and the gaps between the landing doors and the car doors.
If the closing of the landing door is inconsistent with the closing of the car door, the door which is closed faster needs to be taken as a reference, so as to calculate the determined defense area of the visual light curtain. Assuming that the door that is closed faster is the landing door, the calculation formula at this time is: the length of the region which is not closed among the landing doors is the sum of the widths of the landing doors, the car doors and the gaps between the landing doors and the car doors, and on the contrary, when the door which is closed faster is assumed to be the car door, the calculation formula at this time is as follows: the length of the region between the car doors which is not closed is the sum of the widths of the landing door, the car doors and the gaps between the landing door and the car doors.
In this embodiment, before the step S101, the method may further include the following steps:
(1) Detecting whether the elevator door is closing;
(2) If yes, executing the step of regularly acquiring the image information of the elevator door in the closing process of the elevator door;
(3) And if not, determining the area of the elevator door in the sill as the defense area of the visual light curtain.
It should be noted that when the maximum protection area of the visual light curtain is the elevator door (including the landing door and the car door) is fully opened, the protection area of the visual light curtain refers to the area of the sill where the elevator door is located, specifically to the area of the sill where the landing door is located + the area of the sill where the car door is located + the gap area between the landing door and the car door.
According to the method for determining the defense area of the visual light curtain, provided by the embodiment of the invention, the length of the area which is not closed between the elevator doors is determined by periodically acquiring the image information of the elevator doors, and the defense area of the visual light curtain can be calculated and determined by combining the width of the elevator doors, so that the aim of dynamically adjusting the defense area of the visual light curtain is fulfilled, the condition of detection error can be avoided, and the method has a wide market application prospect.
Example two
Referring to fig. 2, fig. 2 is a functional block diagram of a system for determining a defense area of a visual light curtain according to a second embodiment of the present invention, where the system is adapted to execute the method for determining the defense area of the visual light curtain according to the second embodiment of the present invention. The system specifically comprises the following modules:
the elevator door control system comprises an image acquisition module 201, a control module and a control module, wherein the image acquisition module is used for periodically acquiring image information of an elevator door in the closing process of the elevator door;
and the area calculating module 202 is used for determining the length of an area which is not closed between the elevator doors according to the image information, and calculating and determining a defense area of the visual light curtain by combining the width of the elevator doors.
Preferably, in the system for determining a defense area of the visual light curtain, the elevator door comprises a landing door and a car door;
then, the region calculating module 202 is specifically configured to:
judging whether the closing of the landing door is consistent with the closing of the car door or not according to the image information;
if so, determining the length of an area which is not closed between the landing door and any one of the car doors according to the image information, and calculating and determining a defense area of the visual light curtain by combining the landing door, the car doors and the sum of the widths of gaps between the landing door and the car doors;
and if not, determining the length of an area which is not closed yet between the landing door and the door which is closed faster in the car doors according to the image information, and calculating and determining the defense area of the visual light curtain by combining the sum of the widths of the landing door, the car doors and the gaps between the landing door and the car doors.
Preferably, in the system for determining a defense area of a visual light curtain, the system further comprises a closing detection module for:
detecting whether the elevator door is closed or not before the step of periodically acquiring the image information of the elevator door in the closing process of the elevator door;
if yes, executing the step of regularly acquiring the image information of the elevator door in the closing process of the elevator door;
and if not, determining the area of the elevator door in the sill as the defense area of the visual light curtain.
According to the system for determining the defense area of the visual light curtain, provided by the embodiment of the invention, the length of the area which is not closed between the elevator doors is determined by periodically acquiring the image information of the elevator doors, and the defense area of the visual light curtain can be calculated and determined by combining the width of the elevator doors, so that the aim of dynamically adjusting the defense area of the visual light curtain is fulfilled, the condition of detection error can be avoided, and the system has a wide market application prospect.
EXAMPLE III
Referring to fig. 3, fig. 3 is a schematic flow chart of an anti-pinch detection method based on a visual light curtain according to a third embodiment of the present invention, the method is applied to a scene of object detection in a defense area of the visual light curtain, the method is executed by an anti-pinch detection system based on the visual light curtain, and the system can be implemented by software and/or hardware and is integrated in an elevator. As shown in fig. 3, the anti-pinch detection method based on the visual light curtain may include the following steps:
s301, determining a defense area of the visual light curtain according to the defense area determination method of the visual light curtain in the first embodiment;
s302, judging whether an object exists in the defense area; if yes, go to step S303, otherwise go to step S304.
And S303, controlling the elevator door to stop closing or reversely open.
And S304, controlling the elevator door to be continuously closed.
It should be noted that, in this embodiment, the visual light curtain is connected to an elevator controller through a communication bus, and the elevator controller is connected to a door controller through a control bus, and the door controller controls the opening and closing of the landing door and the car door. When judging that there is the object in the cloth defence area, in order to prevent that the object from being hindered by the clamp and prevent that layer door and sedan-chair door suffer destruction, vision light curtain can send the signal to elevator controller, and elevator controller sends the signal to door machine controller again to make this door machine controller can control layer door and sedan-chair door stop to close or open in the reverse direction, until detecting that the object leaves the cloth defence area. Similarly, when judging that no object exists in the defense distribution area, the risk that no object is clamped can be determined, and the landing door and the car door are not damaged, so that the door machine controller can control the landing door and the car door to be continuously closed.
According to the anti-pinch detection method based on the visual light curtain, provided by the embodiment of the invention, the length of an area which is not closed between the elevator doors is determined in a mode of periodically acquiring the image information of the elevator doors, and then the defense arrangement area of the visual light curtain can be calculated and determined by combining the width of the elevator doors, so that the aim of dynamically adjusting the defense arrangement area of the visual light curtain is fulfilled, the accuracy of anti-pinch detection can be improved, the situation of detection errors is avoided, and the anti-pinch detection method has a wide market application prospect.
Example four
Referring to fig. 4, fig. 4 is a functional module schematic diagram of an anti-pinch detection system based on a visual light curtain according to a fourth embodiment of the present invention, where the system is adapted to execute the anti-pinch detection method based on the visual light curtain according to the fourth embodiment of the present invention. The system specifically comprises the following modules:
an area determining module 401, configured to determine a defense area of the visual light curtain according to the defense area determining method of the visual light curtain according to the first embodiment;
an object determining module 402, configured to determine whether an object exists in the defense area;
the elevator door control module 403 is configured to control the elevator door to stop closing or reversely open if an object exists in the defense area; and if no object exists in the defense region, controlling the elevator door to be continuously closed.
According to the anti-pinch detection system based on the visual light curtain, provided by the embodiment of the invention, the length of an area which is not closed between the elevator doors is determined in a mode of periodically acquiring the image information of the elevator doors, and then the defense arrangement area of the visual light curtain can be calculated and determined by combining the width of the elevator doors, so that the aim of dynamically adjusting the defense arrangement area of the visual light curtain is fulfilled, the accuracy of anti-pinch detection can be improved, the condition of detection errors is avoided, and the anti-pinch detection system has a wide market application prospect.
EXAMPLE five
Fig. 5 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention. FIG. 5 illustrates a block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present invention. The computer device 12 shown in FIG. 5 is only an example and should not bring any limitations to the functionality or scope of use of embodiments of the present invention.
As shown in FIG. 5, computer device 12 is in the form of a general purpose computing device. The components of computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 30 and/or cache memory 32. Computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, and commonly referred to as a "hard drive"). Although not shown in FIG. 5, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processing unit 16 executes programs stored in the system memory 28 to execute various functional applications and data processing, such as implementing the method for determining the protection area of the visual light curtain according to the first embodiment and the method for detecting the anti-pinch based on the visual light curtain according to the third embodiment.
EXAMPLE six
The sixth embodiment of the present invention provides a computer-readable storage medium, on which computer-executable instructions are stored, and the instructions, when executed by a processor, implement the method for determining a defense area of a visual light curtain according to the first embodiment and the method for detecting anti-pinch based on a visual light curtain according to the third embodiment.
Any combination of one or more computer-readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
In conclusion, upon reading the present detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure can be presented by way of example only, and not limitation. Those skilled in the art will appreciate that the present application is intended to cover various reasonable variations, adaptations, and modifications of the embodiments described herein, even though not expressly described herein. These alterations, improvements, and modifications are intended to be suggested by this application and are within the spirit and scope of the exemplary embodiments of this application.
Furthermore, certain terminology has been used in this application to describe embodiments of the application. For example, "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined as suitable in one or more embodiments of the application.
It should be appreciated that in the foregoing description of embodiments of the present application, various features are grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one feature. This is not to be taken as an admission that any of the features of the claims are essential, and it is fully possible for a person skilled in the art to extract some of them as separate embodiments when reading the present application. That is, embodiments in the present application may also be understood as an integration of multiple sub-embodiments. And each sub-embodiment described herein is equally applicable in less than all features of a single foregoing disclosed embodiment.
Each patent, patent application, publication of a patent application, and other material, such as articles, books, descriptions, publications, documents, articles, and the like, cited herein is hereby incorporated by reference. All matters hithertofore set forth herein except as related to any prosecution history, may be inconsistent or conflicting with this document or any prosecution history which may have a limiting effect on the broadest scope of the claims. Now or later associated with this document. For example, if there is any inconsistency or conflict in the description, definition, and/or use of terms associated with any of the included materials with respect to the terms, descriptions, definitions, and/or uses associated with this document, the terms in this document are used.
Finally, it should be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Accordingly, the disclosed embodiments are presented by way of example only, and not limitation. Those skilled in the art can implement the present application in alternative configurations according to the embodiments of the present application. Thus, embodiments of the present application are not limited to those precisely described in the application.
Claims (10)
1. A method of determining a defence area of a visual light curtain, the method including:
in the process of closing the elevator door, periodically acquiring image information of the elevator door;
and determining the length of the region which is not closed between the elevator doors according to the image information, and calculating and determining the defense region of the visual light curtain by combining the width of the elevator doors.
2. The method of claim 1, wherein the elevator doors include landing doors and car doors;
then, the step of determining the length of the region between the elevator doors which is not closed yet according to the image information and calculating and determining the defense region of the visual light curtain by combining the width of the elevator doors comprises:
judging whether the closing of the landing door is consistent with the closing of the car door or not according to the image information;
if so, determining the length of an area which is not closed between the landing door and any one of the car doors according to the image information, and calculating and determining a defense area of the visual light curtain by combining the landing door, the car doors and the sum of the widths of gaps between the landing door and the car doors;
and if not, determining the length of an unclosed area between the layer door and the door which is closed faster in the car doors according to the image information, and calculating and determining a defense area of the visual light curtain by combining the layer door, the car doors and the sum of the widths of the gaps between the layer door and the car doors.
3. The method of claim 1, wherein prior to the step of periodically collecting image information of the elevator doors during their closing, the method further comprises:
detecting whether the elevator door is closing;
if yes, executing the step of regularly acquiring the image information of the elevator door in the closing process of the elevator door;
and if not, determining the area of the sill where the elevator door is as the defense deployment area of the visual light curtain.
4. An anti-pinch detection method based on a visual light curtain is characterized by comprising the following steps:
determining a defense area of a visual light curtain according to the method of determining a defense area of a visual light curtain of any of claims 1-3;
judging whether an object exists in the defense distributing area or not;
if so, controlling the elevator door to stop closing or reversely opening;
if not, the elevator door is controlled to be continuously closed.
5. A system for determining a arming area of a visual light curtain, the system comprising:
the elevator door control system comprises an image acquisition module, a control module and a display module, wherein the image acquisition module is used for periodically acquiring image information of an elevator door in the process of closing the elevator door;
and the area calculation module is used for determining the length of an area which is not closed between the elevator doors according to the image information and determining a defense area of the visual light curtain by combining the width calculation of the elevator doors.
6. The system of claim 5, wherein the elevator doors include landing and car doors;
then, the region calculation module is specifically configured to:
judging whether the closing of the landing door is consistent with the closing of the car door or not according to the image information;
if so, determining the length of an area which is not closed between the landing door and any one of the car doors according to the image information, and calculating and determining a defense area of the visual light curtain by combining the sum of the widths of the landing door, the car doors and the gaps between the landing door and the car doors;
and if not, determining the length of an unclosed area between the layer door and the door which is closed faster in the car doors according to the image information, and calculating and determining a defense area of the visual light curtain by combining the layer door, the car doors and the sum of the widths of the gaps between the layer door and the car doors.
7. The system of claim 5, further comprising a shutdown detection module to:
detecting whether the elevator door is closed or not before the step of periodically acquiring the image information of the elevator door in the closing process of the elevator door;
if yes, executing the step of periodically acquiring the image information of the elevator door in the process of closing the elevator door;
and if not, determining the area of the elevator door in the sill as the defense area of the visual light curtain.
8. The utility model provides an anti-pinch detecting system based on vision light curtain which characterized in that, the system includes:
an area determination module for determining a provisioning area of a visual light curtain according to the provisioning area determination method of a visual light curtain of any of claims 1-3;
the object judgment module is used for judging whether an object exists in the defense area;
the elevator door control module is used for controlling the elevator door to stop closing or reversely open if an object exists in the defense area; and if no object exists in the defense deployment area, controlling the elevator door to be continuously closed.
9. Computer arrangement comprising a memory and a processor, wherein the memory stores a computer program, wherein the processor when executing the computer program implements the method for determining a defence area of a visual light curtain as claimed in any of the claims 1 to 3 and the method for anti-pinch detection based on visual light curtains as claimed in claim 4.
10. A storage medium containing computer executable instructions for execution by a computer processor to implement the method of determining a arming region of a visual light curtain of any one of claims 1-3 and the method of visual light curtain-based anti-pinch detection of claim 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211025025.8A CN115385210A (en) | 2022-08-25 | 2022-08-25 | Method for determining defense area of visual light curtain, detection method, equipment and medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211025025.8A CN115385210A (en) | 2022-08-25 | 2022-08-25 | Method for determining defense area of visual light curtain, detection method, equipment and medium |
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