CN112053526A - Monitoring system and monitoring method - Google Patents
Monitoring system and monitoring method Download PDFInfo
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- CN112053526A CN112053526A CN202011053972.9A CN202011053972A CN112053526A CN 112053526 A CN112053526 A CN 112053526A CN 202011053972 A CN202011053972 A CN 202011053972A CN 112053526 A CN112053526 A CN 112053526A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
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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
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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
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/15—Plc structure of the system
- G05B2219/15039—Display of reference, set value, of measured, feedback value
Abstract
The invention discloses a monitoring system and a monitoring method, which are used for monitoring the area of automation equipment, and the monitoring system comprises: the image acquisition module is used for acquiring and outputting image information of the monitoring area; the image processing module is used for receiving the image information, extracting a moving object from the image information and generating a data signal according to the position of the moving object in the image information, wherein when the moving object is located in an alarm area, the data signal is an alarm signal; the communication module is in communication connection with the image processing module; and the control module is in communication connection with the communication module, the data signal generated by the image processing module is transmitted to the control module through the communication module, and when the data signal is an alarm signal, the control module is triggered to alarm. When personnel enter the alarm area, the monitoring system can give an alarm, so that safety accidents caused by the fact that the personnel enter the equipment area by mistake are avoided.
Description
Technical Field
The invention relates to the technical field of safety, in particular to a monitoring system and a monitoring method.
Background
With the continuous development degree of the existing automatic equipment, more and more unmanned equipment is provided, and many equipment are operated remotely or operated fully automatically, but unsafe factors begin to appear correspondingly. Particularly for the field of port automation equipment, no effective security measures exist at present due to the complex scene of the equipment, and inspection personnel generally perform patrol inspection in the area near the equipment. If constructors or other personnel mistakenly enter the dangerous area of the equipment during the operation of port machinery, safety accidents are likely to happen.
Disclosure of Invention
The invention aims to solve the problem that the area where port automation equipment is located cannot be effectively monitored in the prior art. The invention provides a positioning system which can automatically monitor the area where automation equipment is located, and can give an alarm to ensure the safety of personnel who enter the dangerous area of the automation equipment by mistake when the personnel enter the dangerous area of the automation equipment by mistake.
Based on this, the embodiment of the present invention discloses a monitoring system for monitoring an area where automation equipment is located, the monitoring system including:
the image acquisition module is used for acquiring and outputting image information of the monitoring area;
the image processing module is used for receiving the image information, extracting a moving object from the image information and generating a data signal according to the position of the moving object in the image information, wherein when the moving object is located in an alarm area, the data signal is an alarm signal;
the communication module is in communication connection with the image processing module;
the control module is in communication connection with the communication module, the data signal generated by the image processing module is transmitted to the control module through the communication module, and when the data signal is an alarm signal, the control module is triggered to alarm
By adopting the technical scheme, whether the moving object enters the alarm area or not is judged through the image acquisition module and the image processing module, and when the moving object is judged to enter the alarm area, the control module is triggered to alarm, so that safety accidents caused by the fact that a person (the moving object) entering the equipment area by mistake are avoided.
According to another embodiment of the present invention, the alarm area is plural; the image acquisition modules are respectively arranged in the areas where the automation equipment are located, and are used for acquiring and outputting image information of the areas where the corresponding automation equipment are located; the image processing module receives the image information of each image acquisition module respectively, analyzes the image information to extract a moving object, and generates a data signal according to the position of the moving object in the image information, when the moving object is positioned in at least one alarm area, the data signal is an alarm signal, and the alarm signal carries the position information of the image acquisition module corresponding to the alarm area.
According to another embodiment of the present invention, the alarm signal includes an alarm signal, and the control module is configured to send a stop instruction to the corresponding automation device to control the automation device to stop operating according to the position information in the alarm signal when the control module is triggered by the alarm signal.
According to another specific embodiment of the present invention, the monitoring system further includes at least one alarm module, which is respectively disposed in the area where each automation device is located, and connected to the control module; the control module is also used for controlling the corresponding alarm module to operate according to the position information in the warning signal to warn the moving object to leave when the control module is triggered by the warning signal.
According to another embodiment of the present invention, the monitoring system further comprises a local monitoring module and a remote monitoring module, wherein the local monitoring module is in communication connection with the control module and the remote monitoring module through the communication module; the control module is also used for sending alarm information to the local monitoring module when the control module is triggered by the alarm signal, and the local monitoring module transmits the alarm information to the remote monitoring module; the alarm information comprises alarm time, alarm position and alarm type.
According to another embodiment of the present invention, an image processing module includes: the preprocessing unit is used for preprocessing the image information acquired by the image acquisition module, and the preprocessing comprises filtering and denoising and gray threshold segmentation; the extraction unit is used for carrying out feature extraction, morphological processing, interframe difference processing and background difference processing on the image information after the pre-processing and the processing so as to extract a moving object from a static background; the calculating unit is used for calculating the area of the extracted moving object entering the alarm area; the judging unit is used for judging whether the area exceeds a set threshold value or not; the signal generating unit is used for generating and outputting a data signal according to the judgment result of the judging unit; when the area exceeds the set threshold, the data signal is an alarm signal.
According to another embodiment of the present invention, the alarm area includes a warning area and an alarm-stop area, and the set threshold includes a first threshold and a second threshold; the calculation unit is used for respectively calculating a first area of the moving object entering the warning area and/or a second area of the moving object entering the warning area; the judging unit is used for judging whether the first area exceeds a first threshold value and/or whether the second area exceeds a second threshold value; the signal generation unit generates a warning signal when the first area exceeds a first threshold; the signal generation unit generates an alarm signal when the second area exceeds a second threshold.
According to another specific embodiment of the present invention, the monitoring system further comprises a remote control module, the control module is further configured to send status information to the remote control module after being triggered by the alarm signal, and the remote control module is configured to store the status information to its own database; after receiving the manual shutdown confirmation information, the remote control module judges the subsequent execution state of the shutdown device according to the automatic execution flow of the shutdown device confirmed by the position of the shutdown device, and transmits a corresponding operation instruction to the control module to control the shutdown device to operate.
According to another embodiment of the present invention, the control module is an industrial personal computer.
Correspondingly, the embodiment of the invention also discloses a monitoring method for monitoring the area where the automation equipment is located, and the monitoring method comprises the following steps:
the collection step comprises: collecting image information of a monitoring area;
the processing steps are as follows: extracting a moving object from the image information, and generating a data signal according to the position of the moving object in the image information, wherein when the moving object is located in an alarm area, the data signal is an alarm signal;
an alarming step: and receiving the data signal, and triggering an alarm when the data signal is an alarm signal.
According to another embodiment of the present invention, the alarm area is plural; the acquisition step comprises the steps of respectively acquiring the image information of the monitoring area; the processing step comprises the steps of receiving all image information, analyzing all image information to extract a moving object, generating a data signal according to the position of the moving object in the image information, and when the moving object is located in at least one alarm area, the data signal is an alarm signal which carries the position information of an image acquisition module corresponding to the alarm area.
According to another embodiment of the present invention, the alarm signal includes an alarm signal, and when the data signal is the alarm signal, the corresponding automation device is controlled to stop operating according to the position information in the alarm signal.
According to another embodiment of the invention, the alarm signal further comprises a warning signal, and when the data signal is the warning signal, the alarm signal triggers the corresponding area to generate an alarm according to the position information in the warning signal so as to warn the moving object to leave.
According to another embodiment of the present invention, the monitoring method further comprises: when an alarm is triggered, the alarm information is uploaded, wherein the alarm information comprises alarm time, alarm position and alarm type.
According to another embodiment of the invention, the processing step comprises: the method comprises the following steps of preprocessing, preprocessing image information, wherein the preprocessing comprises filtering denoising and gray threshold segmentation; an extraction step, which is to perform feature extraction, morphological processing, interframe difference processing and background difference processing on the image information after the pre-processing and the processing so as to extract a moving object from a static background; calculating, namely calculating the area of the extracted moving object entering the alarm area; judging whether the area exceeds a set threshold value; a signal generation step of generating and outputting a data signal according to the judgment result; when the area exceeds the set threshold, the data signal is an alarm signal.
According to another embodiment of the present invention, the alarm area includes a warning area and an alarm-stop area, and the set threshold includes a first threshold and a second threshold; the calculating step comprises calculating a first area of the moving object entering the warning area and/or a second area of the moving object entering the warning area; the judging step comprises judging whether the first area exceeds a first threshold value and/or whether the second area exceeds a second threshold value; the signal generating step comprises generating a data signal according to the judgment result of the judging step and outputting the data signal; generating a warning signal when the first area exceeds a first threshold; an alert signal is generated when the second area exceeds a second threshold.
Compared with the prior art, the invention has the following technical effects:
by adopting the technical scheme, whether the moving object enters the alarm area or not is judged through the image acquisition module and the image processing module, and when the moving object is judged to enter the alarm area, the control module is triggered to alarm, so that safety accidents caused by the fact that a person (the moving object) entering the equipment area by mistake are avoided.
Drawings
FIG. 1 shows a block diagram of a monitoring system according to an embodiment of the invention;
fig. 2 is a schematic diagram showing a specific structure of an image processing module in the monitoring system according to an embodiment of the present invention;
fig. 3 shows a flow chart of a monitoring method according to an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
In the description of the present embodiment, it should be noted that the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention provides a monitoring system that may be used to monitor an area where automation equipment of a port is located, the monitoring system may include:
and the image acquisition module 1 is used for acquiring and outputting image information of the monitored area.
Specifically, the image acquisition module 1 may be a camera, a high-definition digital video camera, or a device with an infrared digital camera, and may specifically be selected according to the actual environment illuminance on site. For example, if the actual environment illumination on site is low, an infrared digital camera can be arranged; if the actual environment illuminance on site is normal, a common high-definition camera is used. Further, the influence caused by camera distortion can be eliminated by using a method of fixing and installing the calibration plate after calibrating the camera.
And the image processing module 2 is used for receiving the image information, extracting the moving object from the image information, and generating a data signal according to the position of the moving object in the image information, wherein when the moving object is located in the alarm area, the data signal is an alarm signal.
In an actual scene, the alarm area can be set according to actual conditions, and an area near the equipment is used as the alarm area. Considering that whether a moving object enters an alarm area or not needs to be judged according to image information comparison, rectangular areas which are respectively close to the periphery of the equipment within 40cm in the image can be defined as alarm areas. The image processing module 2 can be a computer provided with image analysis software or an automatic anti-intrusion alarm monitoring system, can extract high-definition video of a camera in real time for image preprocessing, and can mark out an alarm area according to the range of danger of on-site actual equipment to people in a camera frame.
And the communication module 3 establishes communication connection with the image processing module 2. Specifically, the communication module 3 may be a gateway or a switch or other communication devices.
And the control module 4 is in communication connection with the communication module 3, the data signal generated by the image processing module 2 is transmitted to the control module 4 through the communication module 3, and when the data signal is an alarm signal, the control module 4 is triggered to alarm.
In particular implementations, the alert may include an emergency shutdown and a warning alert. The control module 4 may be an industrial personal computer (i.e., a PLC controller), which receives the data signal of the image processing module 2 and controls the device to operate according to the received data signal (e.g., control the automatic device to stop or only control the alarm device to alarm). Specifically, the data signal generated by the image processing module 2 may be a boolean data signal.
Whether the moving object enters the alarm area is judged through the image acquisition module 1 and the image processing module 2, and when the moving object is judged to enter the alarm area, the control module 4 is triggered to alarm, so that safety accidents caused by the fact that a person (the moving object) entering the equipment area by mistake is avoided.
Specifically, as shown in fig. 2, the image processing module 2 may include: a preprocessing unit 21, an extraction unit 22, a calculation unit 23, a judgment unit 24, and a signal generation unit 25. The preprocessing unit 21 may be configured to preprocess the image information acquired by the image acquisition module 1, where the preprocessing includes filtering, denoising and grayscale threshold segmentation; the extracting unit 22 may be configured to perform feature extraction, morphological processing, inter-frame difference processing, and background difference processing on the pre-summed image information to extract a moving object from a static background; the calculation unit 23 may be configured to calculate an area where the extracted moving object enters the alarm region; the judging unit 24 may be configured to judge whether the area exceeds a set threshold; the signal generating unit 25 may be configured to generate and output a data signal according to the determination result of the determining unit 24; when the area exceeds the set threshold, the data signal is an alarm signal.
The method comprises the steps that preprocessing such as filtering and gray threshold segmentation is carried out on an image through image analysis software installed in a computer, a moving object is judged through methods such as feature extraction, morphological processing, an inter-frame difference method and a background difference method, a target is extracted from a static background, and whether the moving object enters an alarm area or not is judged through setting a threshold value of the moving object entering the area. For example, the set threshold may be set to 20% -30%, that is, when the area of the moving object entering the alarm region reaches 20% -30% of the area of the moving object itself, the moving object is considered to be located in the alarm region, and the signal generating unit 25 in the image processing module 2 generates the alarm signal accordingly.
Further, the alarm area may include a warning area and an alarm-stop area, and the set threshold includes a first threshold and a second threshold. The calculation unit 23 is configured to calculate a first area where the moving object enters the warning area and/or a second area where the moving object enters the warning area, respectively; the judging unit 24 is configured to judge whether the first area exceeds a first threshold and/or whether the second area exceeds a second threshold; when the first area exceeds the first threshold, the signal generation unit 25 generates a warning signal; when the second area exceeds the second threshold, the signal generation unit 25 generates an alarm signal. Specifically, the first threshold and the second threshold may be both set to 20% -30%, that is, when the moving object enters the first area of the warning area or the second area of the moving object entering the warning area exceeds 20% -30% of its own area, the moving object is considered to be in the warning area or the warning area. Of course, the first threshold and the second threshold may be set according to actual conditions, and the values may be the same or different.
For example, a rectangular area (which may be a rectangular area within 5cm close to the device) where the device is located may be located as the warning area, and a rectangular loop area outside the device area and around 5cm to 40cm close to the device periphery may be defined as the warning area in the image information. Thus, when the area of the moving object entering the warning area reaches the first threshold value, the image processing module 2 sends a warning signal to the control module 4, and the control module 4 controls to give an alarm (such as voice reminding, light flashing or warning sound) to warn that the moving object leaves; when the area of the moving object entering the alarm stop area reaches a second threshold value, the image processing module 2 sends an alarm stop signal to the control module 4, and the control module 4 controls the automatic equipment to stop running so as to avoid safety accidents and ensure the safety of the personnel entering the alarm stop area by mistake.
Further, since the number of port automation devices (hereinafter referred to as port equipment for short) is more than one, and one image acquisition module 1 cannot effectively acquire image information of areas near all port equipment, a plurality of image acquisition modules 1 may be arranged to be distributed in areas where each port equipment is located, and each image acquisition module 1 uploads the acquired image information of the port equipment in the corresponding area to the image processing module 2. Correspondingly, a plurality of alarm areas can be arranged corresponding to the areas where port machinery equipment is located. For example, rectangular areas within 40cm close to the periphery of each port equipment are defined as alarm areas. The image processing module 2 receives the image information of each image acquisition module 1, analyzes each image information to extract a moving object, and generates a data signal according to the position of the moving object in the image information, wherein when the moving object is located in at least one alarm area, the data signal is an alarm signal. In addition, in order to conveniently judge which specific port equipment has a moving object nearby, the alarm signal can carry the position information of the image acquisition module corresponding to the alarm area.
Specifically, the alarm signal may include an alarm stop signal, and the control module 4 is configured to send a stop instruction to the corresponding automation device to control the automation device to stop operating according to the position information in the alarm stop signal when the control module is triggered by the alarm stop signal, so as to avoid threatening the life health of a person who enters the automation device by mistake due to the operation of the device.
Further, the monitoring system may further include: the remote control module 8 is in communication connection with the communication module 3, the control module 4 is also used for sending the state information to the remote control module 8 through the communication module 3 after being triggered by the alarm signal, and the control module 4 stores the state information to a database of the control module; and the remote control module 8 is used for determining the subsequent execution state of the shutdown device according to the automatic execution flow of the shutdown device determined by the position of the shutdown device after receiving the manual shutdown confirmation information, and transmitting a corresponding operation instruction to the control module 4 to control the shutdown device to operate.
Specifically, the state information is the state of the automatic execution flow of the shutdown device at the shutdown time. After the control module 4 controls the port machine equipment to stop, the control module can send state information to the remote control module 8 to inform the port machine equipment of stopping running, the remote control module 8 starts an automatic flow sequence marking state, the state information is written into a database and switched to a manual mode, namely, the port machine equipment which stops running is switched from the automatic mode to the manual mode, the problem of stopping running is confirmed manually, after the manual confirmation, the remote control module 8 sends confirmation information to the remote control module 8, the remote control module 8 gives a subsequent execution state of the equipment according to a series of states of the position of the stopped equipment, an automatic execution flow, an automatic flow step and the like, and then the remote control module 8 outputs a corresponding command to the control module 4 to control the automatic equipment to recover running through the control module 4.
Furthermore, the monitoring system may further comprise at least one alarm module 5, which is separately disposed in the area of each automation device and is connected to the control module 4. The alarm signal also comprises a warning signal, and the control module 4 is also used for controlling the corresponding alarm module 5 to operate to warn the moving object to leave according to the position information in the warning signal when the control module is triggered by the warning signal. In particular, the alarm module 5 may be a voice alarm or an indicator light or a warning device or the like.
Further, the monitoring system also comprises a local monitoring module 6 and a remote monitoring module 7 which are both in communication connection with the communication module 3. The local monitoring module 6 is respectively in communication connection with the control module 4 and the remote monitoring module 7 through the communication module 3; the control module 4 is also used for sending alarm information to the local monitoring module 6 when the control module is triggered by the alarm signal, and the local monitoring module 6 transmits the alarm information to the remote monitoring module 7; the alarm information comprises alarm time, alarm position and alarm type. In the specific implementation process, when the control module is triggered and an alarm occurs, the local monitoring module 6 and the remote monitoring module 7 both send out alarm prompts to prompt an operator that an alarm condition occurs.
Correspondingly, as shown in fig. 3, the present invention further provides a monitoring method for monitoring an area where automation equipment is located, the monitoring method includes the following steps:
and an acquisition step S1 of acquiring image information of the monitoring area.
Specifically, the monitoring area image can be acquired by a camera, a high-definition digital camera, or an infrared digital camera.
And a processing step S2, extracting a moving object from the image information, and generating a data signal according to the position of the moving object in the image information, wherein the data signal is an alarm signal when the moving object is located in an alarm area.
In particular, the collected image information may be processed by image processing software. In an actual scene, the alarm area can be set according to actual conditions, and an area near the equipment is used as the alarm area. Considering that whether a moving object enters an alarm area or not needs to be judged according to image information comparison, rectangular areas which are respectively close to the periphery of the equipment within 40cm in the image can be defined as alarm areas. And extracting a high-definition video of the video camera in real time by using image processing software or an automatic anti-intrusion alarm monitoring system for image preprocessing, and marking out an alarm area in a camera frame according to a range in which actual equipment on site is dangerous to people.
And an alarm step S3, receiving the data signal, and triggering an alarm when the data signal is an alarm signal.
Specifically, the processing step S2 may specifically include:
a preprocessing step S21, preprocessing image information, wherein the preprocessing comprises filtering and denoising and gray threshold segmentation;
an extraction step S22, which is to perform feature extraction, morphological processing, interframe difference processing and background difference processing on the pre-processed image information so as to extract a moving object from a static background;
step S23, calculating the area of the extracted moving object entering the alarm area;
a judgment step S24 of judging whether the area exceeds a set threshold value;
a signal generation step S25 of generating and outputting a data signal according to the judgment result; when the area exceeds the set threshold, the data signal is an alarm signal.
For example, the set threshold value may be set to 20% -30%, that is, when the area of the moving object entering the alarm region reaches 20% -30% of the area of the moving object itself, the moving object is considered to be located in the alarm region, and an alarm signal is generated accordingly.
Further, the alarm area comprises a warning area and an alarm stop area, and the set threshold comprises a first threshold and a second threshold; the calculating step S23 may specifically be to calculate a first area of the moving object entering the warning area, and/or a second area of the moving object entering the warning area; the determining step S24 may specifically be determining whether the first area exceeds a first threshold, and/or whether the second area exceeds a second threshold; the signal generating step S25 may specifically be to generate and output a data signal according to the determination result; generating a warning signal when the first area exceeds a first threshold; an alert signal is generated when the second area exceeds a second threshold.
Specifically, a rectangular area (which may be a rectangular area within 5cm close to the device) where the device is located may be positioned as the warning area, and a rectangular loop area outside the device area and around 5cm to 40cm close to the device periphery may be defined as the warning area in the image information. Thus, when the area of the moving object entering the warning area reaches a first threshold value, a warning signal is sent out, and according to the position information in the warning signal, a corresponding area is triggered to generate an alarm (such as voice reminding, light flashing or warning sound) to warn that the moving object leaves; and when the area of the moving object entering the alarm stop area reaches a second threshold value, an alarm stop signal is sent out, and corresponding automatic equipment is controlled to stop running according to position information in the alarm stop signal, so that safety accidents are avoided, and the safety of people entering the alarm stop area by mistake is ensured.
Further, in the monitoring method, the alarm area is multiple; correspondingly, the step of collecting S1 may specifically include collecting each image information of the monitored area respectively; the processing step S2 may specifically include receiving each image information, analyzing each image information to extract a moving object, and generating a data signal according to a position of the moving object in the image information, where when the moving object is located in at least one alarm region, the data signal is an alarm signal, and the alarm signal carries position information of an image acquisition module corresponding to the alarm region.
And further, the alarm signal comprises an alarm stop signal, and when the data signal is the alarm stop signal, the corresponding automation equipment is controlled to stop running according to the position information in the alarm stop signal. Furthermore, the alarm signal also comprises an alarm signal, and when the data signal is the alarm signal, the alarm signal triggers the corresponding area to alarm to warn the moving object to leave according to the position information in the alarm signal.
Further, the monitoring method further comprises the following steps: when an alarm is triggered, the alarm information is uploaded, wherein the alarm information comprises alarm time, alarm position and alarm type. Therefore, the operator can conveniently know which group of equipment has alarm problems at specific time, alarm time and alarm type, such as shutdown or simple warning, so as to facilitate the subsequent operation of the operator.
According to the monitoring system provided by the invention, whether the moving object enters the alarm area is judged through the image acquisition module 1 and the image processing module 2, and when the moving object is judged to enter the alarm area, the control module 4 is triggered to alarm, so that safety accidents caused by the fact that a person (the moving object) entering the equipment area by mistake is avoided, and the production safety is improved.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, taken in conjunction with the specific embodiments thereof, and that no limitation of the invention is intended thereby. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (16)
1. A monitoring system for monitoring an area in which an automated facility is located, comprising:
the image acquisition module is used for acquiring and outputting image information of the monitoring area;
the image processing module is used for receiving the image information, extracting a moving object from the image information, and generating a data signal according to the position of the moving object in the image information, wherein when the moving object is located in an alarm area, the data signal is an alarm signal;
the communication module is in communication connection with the image processing module;
the control module is in communication connection with the communication module, the data signal generated by the image processing module is transmitted to the control module through the communication module, and when the data signal is the alarm signal, the control module is triggered to alarm.
2. The monitoring system of claim 1, wherein the alarm area is plural; the image acquisition modules are respectively arranged in the areas where the automation equipment is located, and are used for acquiring and outputting image information of the areas where the corresponding automation equipment is located;
the image processing module receives image information of each image acquisition module respectively, analyzes the image information to extract the moving object, and generates a data signal according to the position of the moving object in the image information, when the moving object is located in at least one alarm area, the data signal is an alarm signal, and the alarm signal carries the position information of the image acquisition module corresponding to the alarm area.
3. The monitoring system of claim 2, wherein the alarm signal comprises an alarm signal, and the control module is configured to send a stop command to the corresponding automation device to control the automation device to stop operating according to the position information in the alarm signal when the control module is triggered by the alarm signal.
4. The monitoring system of claim 2, further comprising at least one alarm module, which is separately provided in the area of each of the automation devices and is connected to the control module; the control module is also used for controlling the corresponding alarm module to operate according to the position information in the warning signal so as to warn the moving object to leave when the control module is triggered by the warning signal.
5. The monitoring system of claim 1, further comprising a local monitoring module and a remote monitoring module, wherein the local monitoring module establishes communication connections with the control module and the remote monitoring module through the communication module, respectively; the control module is also used for sending alarm information to the local monitoring module when the control module is triggered by the alarm signal, and the local monitoring module transmits the alarm information to the remote monitoring module; wherein, the alarm information comprises alarm time, alarm position and alarm type.
6. The monitoring system of claim 1, wherein the image processing module comprises:
the preprocessing unit is used for preprocessing the image information acquired by the image acquisition module, and the preprocessing comprises filtering denoising and gray threshold segmentation;
the extraction unit is used for carrying out feature extraction, morphological processing, interframe difference processing and background difference processing on the pre-processed image information so as to extract the moving object from the static background;
the calculation unit is used for calculating the area of the extracted moving object entering the alarm area;
the judging unit is used for judging whether the area exceeds a set threshold value or not;
the signal generating unit is used for generating and outputting the data signal according to the judgment result of the judging unit; and when the area exceeds the set threshold value, the data signal is the alarm signal.
7. The monitoring system of claim 6, wherein the alarm area comprises a warning area and an alarm-stop area, and the set threshold comprises a first threshold and a second threshold;
the calculation unit is used for respectively calculating a first area of the moving object entering the warning area and/or a second area of the moving object entering the warning area;
the judging unit is used for judging whether the first area exceeds the first threshold value and/or whether the second area exceeds the second threshold value;
the signal generation unit generates a warning signal when the first area exceeds the first threshold;
the signal generation unit generates an alarm signal when the second area exceeds the second threshold.
8. The monitoring system of claim 3, further comprising: the remote control module is also used for sending state information to the remote control module after being triggered by the alarm signal, and the remote control module is used for storing the state information to a database of the remote control module; after receiving the manual confirmation shutdown information, the remote control module confirms the automatic execution flow of the shutdown equipment according to the position of the shutdown equipment, judges the subsequent execution state of the shutdown equipment, and transmits a corresponding operation instruction to the control module to control the shutdown equipment to operate.
9. The monitoring system of any one of claims 1 to 8, wherein the control module is an industrial personal computer.
10. A monitoring method for monitoring an area in which an automated device is located, comprising:
the collection step comprises: collecting image information of a monitoring area;
the processing steps are as follows: extracting a moving object from the image information, and generating a data signal according to the position of the moving object in the image information, wherein when the moving object is located in an alarm area, the data signal is an alarm signal;
an alarming step: and receiving the data signal, and triggering an alarm when the data signal is the alarm signal.
11. The monitoring method of claim 10, comprising: the number of the alarm areas is multiple;
the collecting step comprises respectively collecting each image information of the monitoring area;
the processing step comprises the steps of receiving the image information, analyzing the image information to extract the moving object, and generating a data signal according to the position of the moving object in the image information, wherein when the moving object is located in at least one alarm area, the data signal is an alarm signal, and the alarm signal carries the position information of the image acquisition module corresponding to the alarm area.
12. The monitoring method of claim 11, wherein the alarm signal comprises an alarm-stop signal, and when the data signal is the alarm-stop signal, the corresponding automation device is controlled to stop operating according to the position information in the alarm-stop signal.
13. The monitoring method according to claim 11, wherein the alarm signal further comprises a warning signal, and when the data signal is the warning signal, a corresponding area alarm is triggered to warn the moving object to leave according to the position information in the warning signal.
14. The monitoring method of claim 10, further comprising: and when the alarm is triggered, uploading alarm information, wherein the alarm information comprises alarm time, alarm position and alarm type.
15. The monitoring method of claim 10, wherein the processing step comprises:
a pretreatment step: preprocessing the image information, wherein the preprocessing comprises filtering denoising and gray threshold segmentation;
the extraction step comprises: performing feature extraction, morphological processing, interframe difference processing and background difference processing on the pre-processed image information to extract the moving object from the static background;
a calculation step: calculating the area of the extracted moving object entering the alarm area;
a judging step: judging whether the area exceeds a set threshold value or not;
a signal generation step: generating and outputting the data signal according to the judgment result of the judging step; and when the area exceeds the set threshold value, the data signal is the alarm signal.
16. The monitoring method of claim 15, wherein the alarm area includes a warning area and an alarm-stop area, and the set threshold includes a first threshold and a second threshold;
the calculating step comprises calculating a first area of the moving object entering the warning area and/or a second area of the moving object entering the warning area;
the determining step includes determining whether the first area exceeds the first threshold and/or whether the second area exceeds the second threshold;
the signal generating step includes: generating and outputting the data signal according to the judgment result of the judging step; generating a warning signal when the first area exceeds the first threshold; generating an alert signal when the second area exceeds the second threshold.
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