CN112363449A - Method for actively protecting retractable door with high identification precision and system using same - Google Patents
Method for actively protecting retractable door with high identification precision and system using same Download PDFInfo
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- CN112363449A CN112363449A CN202011260056.2A CN202011260056A CN112363449A CN 112363449 A CN112363449 A CN 112363449A CN 202011260056 A CN202011260056 A CN 202011260056A CN 112363449 A CN112363449 A CN 112363449A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B11/00—Means for allowing passage through fences, barriers or the like, e.g. stiles
- E06B11/02—Gates; Doors
- E06B11/022—Gates; Doors characterised by the manner of movement
- E06B11/023—Gates; Doors characterised by the manner of movement where the gate opens within the plane of the gate
- E06B11/026—Gates; Doors characterised by the manner of movement where the gate opens within the plane of the gate horizontally
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
- G05B19/0425—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
- G06V20/41—Higher-level, semantic clustering, classification or understanding of video scenes, e.g. detection, labelling or Markovian modelling of sport events or news items
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/40—Spoof detection, e.g. liveness detection
- G06V40/45—Detection of the body part being alive
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- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a method for actively protecting a retractable door with high identification precision and a system using the same, wherein the method comprises an image acquisition step and a processing operation step, an image of a surrounding area of the retractable door is acquired through a video identification device, the video identification device identifies a living body in the image, a door row of the retractable door and a vehicle, the capture range of the video identification device follows the door row, a central processing unit controls a power supply module of the retractable door to be powered off after receiving a stop instruction, and the central processing unit controls the power supply module of the retractable door not to be powered off after receiving an action instruction; the system comprises a central processing unit, a machine head, a door row, a portal frame and a video identification device; the active protection method of the retractable door with high identification precision and the system using the same can prevent living bodies on the side surface of the retractable door from being injured when in use.
Description
Technical Field
The invention relates to the technical field of retractable doors, in particular to a method for actively protecting a retractable door with high identification precision and a system using the same.
Background
At present, the electric retractable door is favored by people due to the fact that the electric retractable door is flexible, easy to operate and easy to change in shape, is widely applied to places such as offices, schools, enterprises and stadiums, can effectively manage passing vehicles and people, and is opened and closed through multiple groups of crossed connecting rods. However, the existing retractable door system cannot distinguish a living body from a vehicle, and although the vehicle can be conveniently moved in and out, when the living body approaches the side face of the retractable door, the retractable door cannot detect that the living body approaches, so that the living body is easily injured.
Disclosure of Invention
In view of the above-mentioned drawbacks, the present invention provides a method for actively protecting a retractable door with high recognition accuracy and a system using the same, which can prevent a living body located on a side surface of the retractable door from being damaged during use.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for identifying the active protection of a high-precision retractable door comprises an image acquisition step and a processing operation step;
the step of acquiring the image comprises:
acquiring an image of a surrounding area of the retractable door through a video recognition device;
the video recognition device recognizes the living body, the door row of the retractable door and the vehicle in the image;
the capture range of the video recognition device follows the gate row;
when the video recognition device recognizes that living bodies exist around the door row, the video recognition device generates a stopping instruction and sends the stopping instruction to a central processing unit;
when the video recognition device recognizes that no living bodies exist around the door row, the video recognition device generates an action instruction and sends the action instruction to the central processing unit;
the process running step includes:
the central processing unit controls a power supply module of the retractable door to be powered off after receiving the stopping instruction;
and the central processing unit controls the power supply module of the telescopic door not to be powered off after receiving the action command.
For example, the process running step further includes:
the central processing unit controls the automatic reclosing protection switch to be switched off after receiving the stopping instruction;
the central processing unit controls an automatic reclosing protection switch to be closed after receiving the action instruction;
after the automatic reclosing protection switch is switched off, the power supply module is switched off from the commercial power, and after the automatic reclosing protection switch is switched on, the power supply module is communicated with the commercial power.
It is worth mentioning that in the step of acquiring an image:
the video identification device eliminates background elements by using a background difference method, so that the remaining living body elements and part of noise pixels in the image are obtained;
and the video identification device removes the noise pixel by using a Gaussian model, so that only the content representing the living body element is left in the image.
Optionally, an anti-creeping step is further included;
the anti-creeping step includes:
when the electric leakage detection device detects that the circuit is in electric leakage, sending an electric leakage instruction to the central processing unit;
the central processing unit controls the automatic reclosing protection switch to be switched off after receiving the electric leakage instruction;
the central processing unit controls a power-off timer to start timing after receiving the electric leakage instruction;
and after the power-off timer finishes timing, the central processing unit controls the automatic reclosing protection switch to be closed.
Specifically, a defense alarming step is further included;
the defense alarming step comprises the following steps:
when the video recognition device recognizes that a living body exists above the door row, the video recognition device sends an alarm instruction to the central processing unit;
and the central processing unit controls an alarm to alarm after receiving the alarm instruction.
Preferably, the method also comprises a voice reminding step;
the voice reminding step is as follows:
after the central processing unit receives the stopping instruction, the electric leakage instruction or the alarm instruction, the central processing unit controls the voice reminding device to broadcast an alarm prompt;
the step of acquiring an image further comprises:
and after the video identification device acquires the images around the door row, the video identification device sends the images to a display through the central processing unit.
For example, the active protection system for the retractable door with high identification precision comprises a central processing unit, a machine head, a door row, a power supply module, an automatic reclosing protection switch, a portal frame and a video identification device;
the machine head is arranged at the front end of the door row and drives the door row to move;
the gantry is erected at the tail end of the door row;
the power supply module and the automatic reclosing protection switch are arranged on the portal frame, the input end of the power supply module is electrically connected with the primary end of the automatic reclosing protection switch, the output end of the power supply module is electrically connected with the machine head through a power line, and the secondary end of the automatic reclosing protection switch is electrically connected with the central processing unit;
a video recognition device is arranged at the top of the portal frame, and a lens of the video recognition device is aligned with the door row;
the video recognition device is electrically connected with the central processing unit, and is used for acquiring images of the area around the retractable door, capturing a range to follow the door row, and recognizing living bodies in the images, the door row of the retractable door and the vehicle: when living bodies are identified to exist around the door row, generating a stopping instruction and sending the stopping instruction to the central processing unit; when no living body exists around the door row, generating an action instruction and sending the action instruction to the central processing unit;
the central processing unit is used for controlling the automatic reclosing protection switch to be switched off after receiving the stopping instruction and controlling the automatic reclosing protection switch to be switched on after receiving the action instruction.
It is worth to be noted that the leakage detection device and the power-off timer are further included, and the leakage detection device and the power-off timer are respectively electrically connected with the central processing unit;
the electric leakage detection device is used for detecting the electric leakage condition of a circuit: when the line leakage is detected, a leakage instruction is sent to the central processing unit; when no electric leakage of the circuit is detected, a power restoration instruction is sent to the central processing unit;
the central processing unit is also used for controlling the automatic reclosing protection switch to be switched off after receiving the electric leakage instruction, controlling the power-off timer to start timing after receiving the electric leakage instruction, and controlling the automatic reclosing protection switch to be switched on after the timing of the power-off timer is finished.
Optionally, the system further comprises an alarm, a voice reminding device and a display, wherein the alarm and the voice reminding device are arranged at the top of the portal frame, the alarm is used for giving an alarm, the voice reminding device is used for broadcasting an alarm prompt, the display is used for displaying images collected by the video recognition device, and the alarm, the voice reminding device and the display are respectively and electrically connected with the central processing unit;
the video recognition device is also used for sending an alarm instruction to the central processing unit when recognizing that a living body exists above the door row;
the central processing unit is also used for controlling an alarm to give an alarm after receiving the alarm instruction, and controlling a voice reminding device to broadcast an alarm prompt after receiving the stopping instruction, the electric leakage instruction or the alarm instruction.
Specifically, the video identification device is provided with a living body identification module, wherein the living body identification module is used for eliminating background elements by using a background difference method so that the living body elements and part of noise pixels are remained in the image, and is used for removing the noise pixels by using a Gaussian model so that only the content representing the living body elements is remained in the image.
The invention has the beneficial effects that: according to the method for actively protecting the retractable door with high identification precision and the system using the same, the step of collecting images is utilized to distinguish the door row and living bodies and vehicles around the door row, and then two different instructions fed back to the central processing unit through the video identification device enable the central processing unit to respond so as to control the power supply module of the retractable door to make different actions, so that the power supply module of the retractable door is powered off when a living body is close to the door row, and the power supply module of the retractable door is not powered off when only a vehicle is close to the door row, so that the living body on the side surface of the retractable door is prevented from being damaged.
The periphery of the door row is a dangerous area, when the circuit leaks electricity, the living body approaches the door row, electric shock is easily caused, and when the door is opened or closed, the living body approaches and can be clamped; other areas belong to safe areas, even if living bodies exist, the living bodies cannot be electrically shocked or pinched by the door row, so the video recognition device is arranged to automatically track the door row, the capture range of the video recognition device is always between the front end and the tail end of the door row, and the images collected by the video recognition device are always the environment around the door row, namely the video recognition device can always detect the dangerous areas. When the video recognition device recognizes a living body, the living body is in the dangerous area, the living body is in electric shock or is pinched by the door row, at the moment, the central controller controls the power supply module of the retractable door to be powered off, and a worker cannot control the retractable door to open or close, when no object is in the identification range of the video identification device, the video identification device represents that no living body exists in the dangerous area, the accident that the living body is clamped by the door row can not happen, at the moment, the central controller controls the power supply module of the retractable door not to be powered off, the working personnel can control the retractable door to open or close, when a vehicle is in the identification range of the video identification device but no living body exists, the central controller controls the power supply module of the retractable door not to be powered off, a worker can control the retractable door to open the door, and the vehicle has enough space to pass after the door is arranged at the tail end of the door and is retracted.
Drawings
FIG. 1 is a flow chart of a method in one embodiment of the invention;
FIG. 2 is a configuration diagram of a system in one embodiment of the invention;
fig. 3 is a schematic structural diagram of an embodiment of the present invention.
Wherein: 1, a machine head; 2, arranging doors; 3 a portal frame.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, embodiments of the invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The following describes, with reference to fig. 1 to 3, a method for active protection of a retractable door with high recognition accuracy according to an embodiment of the present invention, including an image acquisition step and a processing operation step;
the step of acquiring the image comprises:
acquiring an image of a surrounding area of the retractable door through a video recognition device;
the video recognition device recognizes the living body, the door row 2 of the retractable door, and the vehicle in the image;
the capture range of the video recognition device follows the door row 2;
when the video recognition device recognizes that living bodies exist around the door row 2, the video recognition device generates a stopping instruction and sends the stopping instruction to a central processing unit;
when the video recognition device recognizes that no living body exists around the door row 2, the video recognition device generates an action instruction and sends the action instruction to the central processing unit;
the process running step includes:
the central processing unit controls a power supply module of the retractable door to be powered off after receiving the stopping instruction;
and the central processing unit controls the power supply module of the telescopic door not to be powered off after receiving the action command.
According to the method for actively protecting the retractable door with high identification precision, the door row 2 and living bodies and vehicles around the door row 2 are distinguished by utilizing the image acquisition step, and then two different instructions fed back to the central processing unit through the video identification device enable the central processing unit to respond so as to control the power supply module of the retractable door to perform different actions, so that the power supply module of the retractable door is powered off when a living body is close to the door row 2, and the power supply module of the retractable door is not powered off when only a vehicle is close to the door row 2, so that the living body on the side surface of the retractable door is prevented from being damaged.
The periphery of the door row 2 is a dangerous area, when the circuit leaks electricity, the living body approaches the door row 2, electric shock is easily caused, and when the door is opened or closed, the living body approaches and is clamped; other areas belong to safe areas, even if living bodies exist, the living bodies cannot be electrically shocked or pinched by the door row 2, so that the video recognition device is arranged to automatically track the door row 2, the capture range of the video recognition device is always between the front end and the tail end of the door row 2, and the images collected by the video recognition device are always the environment around the door row 2, namely, the video recognition device can always detect the dangerous areas. When the video recognition device recognizes a living body, the living body is present in the dangerous area, the living body is in electric shock or is damaged by the door row 2, at the moment, the central controller controls the power supply module of the retractable door to be powered off, a worker cannot control the retractable door to open or close the door, when no object is in the recognition range of the video recognition device, the living body is absent in the dangerous area, the accident that the living body is damaged by the door row 2 cannot be caused, at the moment, the central controller controls the power supply module of the retractable door not to be powered off, the worker can control the retractable door to open or close the door, when a vehicle is present in the recognition range of the video recognition device but the living body is absent, at the moment, the central controller controls the power supply module of the retractable door not to be powered off, the worker can control the retractable door to open the door, and the door row 2 contracts towards the tail end of the central, the vehicle has enough space to pass through.
In some embodiments, the process running step further comprises:
the central processing unit controls the automatic reclosing protection switch to be switched off after receiving the stopping instruction;
the central processing unit controls an automatic reclosing protection switch to be closed after receiving the action instruction;
after the automatic reclosing protection switch is switched off, the power supply module is switched off from the commercial power, and after the automatic reclosing protection switch is switched on, the power supply module is communicated with the commercial power.
The central processing unit controls the automatic reclosing protection switch to be switched off, and because the power supply module is switched off from the mains supply, the power supply module is switched off, so that the accidents that the living body is electrically shocked and is clamped to hurt the living body are avoided. The central processing unit controls the automatic reclosing protection switch to be closed, and because the power supply module is communicated with the mains supply, the power supply module is electrified, and security personnel can control the retractable door.
For example, in the step of acquiring an image:
the video identification device eliminates background elements by using a background difference method, so that the remaining living body elements and part of noise pixels in the image are obtained;
and the video identification device removes the noise pixel by using a Gaussian model, so that only the content representing the living body element is left in the image.
Background subtraction mainly includes binarization processing and addition/subtraction of image contents, and is a conventional motion detection method, which is a technique for detecting a motion region by using the difference between a current image and a background image. The gaussian mixture model is a model formed by decomposing an image into a plurality of gaussian probability density functions based on a gaussian probability density function, and accurately quantifies the image by the gaussian probability density functions.
It is worth to be noted that the method also comprises an anti-creeping step;
the anti-creeping step includes:
when the electric leakage detection device detects that the circuit is in electric leakage, sending an electric leakage instruction to the central processing unit;
the central processing unit controls the automatic reclosing protection switch to be switched off after receiving the electric leakage instruction;
the central processing unit controls a power-off timer to start timing after receiving the electric leakage instruction;
and after the power-off timer finishes timing, the central processing unit controls the automatic reclosing protection switch to be closed.
The gate row 2 is charged by the line leakage, and an electric shock accident occurs when a living body touches the gate row 2. The electric leakage detection device can detect electric leakage at the moment of line electric leakage, and then the central processing unit controls the automatic reclosing protection switch to be switched off, so that the power supply module is powered off, and the door row 2 is prevented from being electrified. After the timing of the power failure timer is finished, the automatic reclosing protection switch is used for switching on the line, and the electric leakage detection device can detect whether the line leaks electricity again, so that the line false tripping accident caused by the false judgment of the electric leakage detection device is avoided.
Optionally, a defense alarming step is further included;
the defense alarming step comprises the following steps:
when the video recognition device recognizes that a living body exists above the door row 2, the video recognition device sends an alarm instruction to the central processing unit;
and the central processing unit controls an alarm to alarm after receiving the alarm instruction.
The alarm is connected with a public security alarm system. When the video recognition device detects that a living body is arranged above the door row 2, the living body crosses the door row 2, and the alarm gives an alarm.
Specifically, the method further comprises a voice reminding step;
the voice reminding step is as follows:
after the central processing unit receives the stopping instruction, the electric leakage instruction or the alarm instruction, the central processing unit controls the voice reminding device to broadcast an alarm prompt;
the step of acquiring an image further comprises:
and after the video identification device acquires the images around the door row, the video identification device sends the images to a display through the central processing unit.
Through voice reminding device reports alarm suggestion, can remind the live body to keep away from the door row can also pass through alarm bell sound energy reminds security personnel to handle the threat immediately, guarantees the safety in the garden. The video recognition device carries out analog-to-digital conversion on the acquired image, and then sends the image to the display through the central processing unit, so that security personnel can conveniently know the service condition of the retractable door and the environment around the retractable door in time.
As shown in fig. 3, the active protection system for the retractable door with high identification precision comprises a central processing unit, a machine head 1, a door row 2, a power supply module, an automatic reclosing protection switch, a portal frame 3 and a video identification device;
the machine head 1 is arranged at the front end of the door row 2 and drives the door row 2 to move;
the portal frame 3 is arranged at the tail end of the door row 2;
the power supply module and the automatic reclosing protection switch are arranged on the portal frame 3, the input end of the power supply module is electrically connected with the primary end of the automatic reclosing protection switch, the output end of the power supply module is electrically connected with the handpiece 1 through a power line, and the secondary end of the automatic reclosing protection switch is electrically connected with the central processing unit;
a video recognition device is arranged at the top of the portal frame 3, and a lens of the video recognition device is aligned with the door row 2;
the video recognition device is electrically connected with the central processing unit, and is used for acquiring images of the area around the retractable door, capturing a range following the door row 2, and recognizing living bodies in the images, the door row 2 of the retractable door and vehicles: when the living bodies around the door row 2 are identified, generating a stopping instruction and sending the stopping instruction to the central processing unit; when no living body exists around the door row 2, generating an action instruction and sending the action instruction to the central processing unit;
the central processing unit is used for controlling the automatic reclosing protection switch to be switched off after receiving the stopping instruction and controlling the automatic reclosing protection switch to be switched on after receiving the action instruction.
The central processing unit is preferably a PLC, a computer or a single chip microcomputer. The primary end of the automatic reclosing protection switch is a wiring terminal used for transmitting electric energy, and the secondary end of the automatic reclosing protection switch is a wiring terminal used for sending or receiving a control signal. When opening the door, aircraft nose 1 drives door row 2 is to its self end shrink, and when closing the door, aircraft nose 1 drives door row 2 is to extending with the opposite direction of shrink direction. The video recognition device is a camera with an automatic tracking function and a recognition function, and a lens of the video recognition device can swing along with the extension and contraction of the door row 2, so that the lens of the video recognition device is always aligned with the position of the door row 2. When the object appears around row 2, video identification device discerns this object to can discern this object and be the live body or vehicle, work as when the object that video identification device discerned has the live body, central processing unit control automatic reclosing protection switch disconnection, power module and commercial power disconnection, power module cuts off the power supply, works as when the object that video identification device discerned only has the vehicle, central processing unit control automatic reclosing protection switch closes a switch, power module and commercial power intercommunication, power module does not cut off the power supply.
Preferably, as shown in fig. 2, the system further comprises an electric leakage detection device and a power-off timer, wherein the electric leakage detection device and the power-off timer are respectively electrically connected with the central processing unit;
the electric leakage detection device is used for detecting the electric leakage condition of a circuit: when the line leakage is detected, a leakage instruction is sent to the central processing unit;
the central processing unit is also used for controlling the automatic reclosing protection switch to be switched off after receiving the electric leakage instruction, controlling the power-off timer to start timing after receiving the electric leakage instruction, and controlling the automatic reclosing protection switch to be switched on after the timing of the power-off timer is finished.
The timing time of the power-off timer is adjustable, a plurality of preset values can be set in the power-off timer, and the power-off timer counts the corresponding time according to different received instructions. And after the power-off timer starts to time, continuously accumulating the clocks in the units until the clocks reach the preset value, enabling the power-off timer to act, and controlling the automatic reclosing protection switch to be closed by the central processing unit.
For example, the system further comprises an alarm, a voice reminding device and a display, wherein the alarm and the voice reminding device are arranged at the top of the portal frame 3, the alarm is used for giving an alarm, the voice reminding device is used for broadcasting an alarm prompt, the display is used for displaying images collected by the video recognition device, and the alarm, the voice reminding device and the display are respectively and electrically connected with the central processing unit;
the video recognition device is also used for sending an alarm instruction to the central processing unit when recognizing that a living body exists above the door row 2;
the central processing unit is also used for controlling an alarm to give an alarm after receiving the alarm instruction, and controlling a voice reminding device to broadcast an alarm prompt after receiving the stopping instruction, the electric leakage instruction or the alarm instruction.
The alarm is connected with a public security alarm system, and after the retractable door is closed, the video recognition device recognizes that a living body crosses the retractable door, and the central processing unit controls the alarm to give an alarm. The voice reminding device is preferably a buzzer, and the voice reminding device is controlled by the central processing unit to give out alarm reminding sound.
The image that video identification device gathered passes through central processing unit in the display shows, the display is installed in the guard indoor convenience security personnel in time know the service behavior of flexible door and the environment around the flexible door.
It is worth to say that the video recognition device is provided with a living body recognition module, wherein the living body recognition module is used for eliminating background elements by using a background difference method so that the living body elements and part of noise pixels are remained in the image, and is used for removing the noise pixels by using a Gaussian model so that only the content representing the living body elements is remained in the image.
Because the image after the background difference method still has certain noise content, the image after the difference is denoised by adopting a Gaussian model, and the noise content is reduced.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions.
Claims (10)
1. A method for actively protecting a retractable door with high identification precision is characterized by comprising the following steps: comprises an image acquisition step and a processing operation step;
the step of acquiring the image comprises:
acquiring an image of a surrounding area of the retractable door through a video recognition device;
the video recognition device recognizes the living body, the door row of the retractable door and the vehicle in the image;
the capture range of the video recognition device follows the gate row;
when the video recognition device recognizes that living bodies exist around the door row, the video recognition device generates a stopping instruction and sends the stopping instruction to a central processing unit;
when the video recognition device recognizes that no living bodies exist around the door row, the video recognition device generates an action instruction and sends the action instruction to the central processing unit;
the process running step includes:
the central processing unit controls a power supply module of the retractable door to be powered off after receiving the stopping instruction;
and the central processing unit controls the power supply module of the telescopic door not to be powered off after receiving the action command.
2. The method for actively protecting the retractable door with high identification precision as claimed in claim 1, wherein: the process running step further comprises:
the central processing unit controls the automatic reclosing protection switch to be switched off after receiving the stopping instruction;
the central processing unit controls an automatic reclosing protection switch to be closed after receiving the action instruction;
after the automatic reclosing protection switch is switched off, the power supply module is switched off from the commercial power, and after the automatic reclosing protection switch is switched on, the power supply module is communicated with the commercial power.
3. The method for actively protecting the retractable door with high identification precision as claimed in claim 2, wherein: in the step of acquiring an image:
the video identification device eliminates background elements by using a background difference method, so that the remaining living body elements and part of noise pixels in the image are obtained;
and the video identification device removes the noise pixel by using a Gaussian model, so that only the content representing the living body element is left in the image.
4. The method for actively protecting the retractable door with high identification precision as claimed in claim 3, wherein: also comprises an anti-creeping step;
the anti-creeping step includes:
when the electric leakage detection device detects that the circuit is in electric leakage, sending an electric leakage instruction to the central processing unit;
the central processing unit controls the automatic reclosing protection switch to be switched off after receiving the electric leakage instruction;
the central processing unit controls a power-off timer to start timing after receiving the electric leakage instruction;
and after the power-off timer finishes timing, the central processing unit controls the automatic reclosing protection switch to be closed.
5. The method for active protection of the retractable door with high identification precision of claim 4, wherein the method comprises the following steps: also comprises a defense alarming step;
the defense alarming step comprises the following steps:
when the video recognition device recognizes that a living body exists above the door row, the video recognition device sends an alarm instruction to the central processing unit;
and the central processing unit controls an alarm to alarm after receiving the alarm instruction.
6. The method for active protection of the retractable door with high identification precision of claim 5, wherein the method comprises the following steps: also comprises a voice reminding step;
the voice reminding step is as follows:
after the central processing unit receives the stopping instruction, the electric leakage instruction or the alarm instruction, the central processing unit controls the voice reminding device to broadcast an alarm prompt;
the step of acquiring an image further comprises:
and after the video identification device acquires the images around the door row, the video identification device sends the images to a display through the central processing unit.
7. The utility model provides a flexible door initiative protection system that discernment precision is high which characterized in that: the automatic reclosing device comprises a central processing unit, a machine head, a door row, a power supply module, an automatic reclosing protection switch, a portal frame and a video identification device;
the machine head is arranged at the front end of the door row and drives the door row to move;
the gantry is erected at the tail end of the door row;
the power supply module and the automatic reclosing protection switch are arranged on the portal frame, the input end of the power supply module is electrically connected with the primary end of the automatic reclosing protection switch, the output end of the power supply module is electrically connected with the machine head through a power line, and the secondary end of the automatic reclosing protection switch is electrically connected with the central processing unit;
a video recognition device is arranged at the top of the portal frame, and a lens of the video recognition device is aligned with the door row;
the video recognition device is electrically connected with the central processing unit, and is used for acquiring images of the area around the retractable door, capturing a range to follow the door row, and recognizing living bodies in the images, the door row of the retractable door and the vehicle: when living bodies are identified to exist around the door row, generating a stopping instruction and sending the stopping instruction to the central processing unit; when no living body exists around the door row, generating an action instruction and sending the action instruction to the central processing unit;
the central processing unit is used for controlling the automatic reclosing protection switch to be switched off after receiving the stopping instruction and controlling the automatic reclosing protection switch to be switched on after receiving the action instruction.
8. The active protection system for retractable doors with high identification precision as claimed in claim 7, wherein: the leakage detection device and the power-off timer are respectively and electrically connected with the central processing unit;
the electric leakage detection device is used for detecting the electric leakage condition of a circuit: when the line leakage is detected, a leakage instruction is sent to the central processing unit; when no electric leakage of the circuit is detected, a power restoration instruction is sent to the central processing unit;
the central processing unit is also used for controlling the automatic reclosing protection switch to be switched off after receiving the electric leakage instruction, controlling the power-off timer to start timing after receiving the electric leakage instruction, and controlling the automatic reclosing protection switch to be switched on after the timing of the power-off timer is finished.
9. The active protection system for retractable doors with high identification precision as claimed in claim 8, wherein: the portal frame is characterized by further comprising an alarm, a voice reminding device and a display, wherein the alarm and the voice reminding device are arranged at the top of the portal frame, the alarm is used for giving an alarm, the voice reminding device is used for broadcasting an alarm prompt, the display is used for displaying images collected by the video recognition device, and the alarm, the voice reminding device and the display are respectively and electrically connected with the central processing unit;
the video recognition device is also used for sending an alarm instruction to the central processing unit when recognizing that a living body exists above the door row;
the central processing unit is also used for controlling an alarm to give an alarm after receiving the alarm instruction, and controlling a voice reminding device to broadcast an alarm prompt after receiving the stopping instruction, the electric leakage instruction or the alarm instruction.
10. The active protection system for retractable doors with high identification precision as claimed in claim 9, wherein: the video recognition device is provided with a living body recognition module, wherein the living body recognition module is used for eliminating background elements by using a background difference method so that the remaining living body elements and part of noise pixels in the image are removed, and is used for removing the noise pixels by using a Gaussian model so that only the content representing the living body elements remains in the image.
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| CN202011260056.2A CN112363449A (en) | 2020-11-12 | 2020-11-12 | Method for actively protecting retractable door with high identification precision and system using same |
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| CN202011260056.2A CN112363449A (en) | 2020-11-12 | 2020-11-12 | Method for actively protecting retractable door with high identification precision and system using same |
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Cited By (1)
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