Safety identification automobile production system and safety identification method thereof

Abstract

The invention relates to the technical field of automobile processing, in particular to a safety identification automobile production system and a safety identification method thereof. The system comprises a robot welding area, a workpiece feeding area, a workpiece discharging area, a camera device, a sensing device, an identity recognition device, a safety door, an alarm device and a control device. The robot welding area is a closed area, a welding robot, a carrying robot, a clamp and a camera device are arranged in the robot welding area, and the clamp is configured to reciprocate in the workpiece feeding area and the robot welding area; the feeding area is adjacent to one side of the robot welding area and is internally provided with a sensing device; the workpiece discharging area is adjacent to the other side of the robot welding area, and an identity recognition device and a safety door are arranged in the workpiece discharging area. The signal input end of the control device is electrically connected with the signal output ends of the camera device, the sensing device, the identity recognition device and the safety door, the signal output end of the control device is electrically connected with the signal input ends of the safety door, the welding robot, the carrying robot and the alarm device, and the system has high safety.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile processing, and in particular to a safety identification automobile production system and a safety identification method thereof. Background Art

[0002] In the current automobile production environment, although the application of automation and intelligent technology is becoming more and more widespread, which greatly reduces the need for direct human participation in the production process, thereby improving production efficiency and reducing costs, it also brings new challenges, especially the safety issues in the interaction areas between automated equipment and personnel. Many existing production lines do not have clear functional area divisions, and the entire production line is often open, such as robot welding, loading and unloading operations, which all interact. Although this design is convenient for initial installation and layout adjustment, it greatly sacrifices safety. During equipment operation, the risk of personnel mistakenly entering dangerous areas increases significantly, especially during equipment maintenance, workers may enter high-risk areas without stopping or only partially stopping the machine, which undoubtedly increases the possibility of safety accidents.

[0003] In addition, traditional production lines usually rely on basic sensing devices or simple warning signs to remind workers to pay attention to safety, but these measures are often not enough to provide adequate protection.

[0004] Therefore, there is an urgent need for a more comprehensive and intelligent safety strategy and technical improvement solution to address the many safety hazards in existing open production lines and ensure the safety of personnel and equipment. Summary of the invention

[0005] In view of this, an embodiment of the present application provides a safety identification automobile production system and a safety identification method thereof to solve the problem of low safety of existing automobile production systems.

[0006] A first aspect of an embodiment of the present application provides a safety identification automobile production system, the system comprising a robot welding area, a loading area, a unloading area, a camera device, a sensing device, an identity recognition device, a safety door, an alarm device and a control device;

[0007] The robot welding area is a closed area isolated from the upper area and the lower area, and is equipped with a welding robot, a handling robot, a fixture and a camera device. The fixture is configured to reciprocate between the upper area and the robot welding area; the upper area is an open area, adjacent to one side of the robot welding area, and is equipped with a sensing device; the lower area is an open area, adjacent to the other side of the robot welding area, and is equipped with an identity recognition device and a safety door; the signal input end of the control device is electrically connected to the signal output end of the camera device, the sensing device, the identity recognition device and the safety door, and the signal output end is electrically connected to the signal input end of the safety door, the welding robot, the handling robot and the alarm device;

[0008] The identity recognition device is used to obtain personnel identity information and send it to the control device, and the control device is used to perform entry verification and exit verification on the personnel identity information, and control the safety door to open when the entry verification passes, and control the safety door to close when the exit verification passes and it is determined that no personnel are in the robot welding area;

[0009] The camera device is used to monitor personnel in the robot welding area and send a monitoring warning signal to the control device when a personnel image is captured in the robot welding area;

[0010] The sensing device is used to generate a sensing signal based on the shielding of the personnel when the personnel approaches the fixture or enters the robot welding area, and send it to the control device;

[0011] The control device is also used to receive the monitoring warning signal and the sensing signal, and output an alarm signal to the alarm device when it is determined that a person is in the robot welding area or a person is close to the fixture, and shut down the welding robot and the handling robot;

[0012] The alarm device is used to issue a corresponding alarm based on the alarm signal output by the control device.

[0013] A second aspect of an embodiment of the present application provides a method for securely identifying an automobile production system, comprising:

[0014] In response to the user's entry operation, obtaining personnel identity information for entry verification;

[0015] When the entry verification is passed, the safety door is controlled to open;

[0016] The robot welding area is monitored, and when no image of a person is captured in the robot welding area, it is determined that no person is in the robot welding area;

[0017] In response to the user's logout operation, obtaining the person's identity information for logout verification;

[0018] When the exit check passes and it is determined that no personnel are in the robot welding area, the safety door is controlled to close.

[0019] The first aspect of the embodiment of the present application provides a safety identification automobile production system, which improves the safety of production by dividing the conventional automobile production line into a robot welding area, a loading area, and a unloading area, and isolating different areas from each other by closing the robot welding area. An identity recognition device is set to identify the personnel entering the robot welding area, ensuring that only authorized personnel can enter or leave the key area, thereby effectively preventing unauthorized access. The control device receives signals from the camera device, the sensing device, the identity recognition device, and the safety door, so that when someone enters the robot welding area to work, the line body can be controlled to stop working, thereby ensuring the safety of the personnel entering the robot welding area. When the exit check passes and it is determined that no personnel are in the robot welding area, the safety door is controlled to close, otherwise the safety door is continuously opened, and the camera device and the identity recognition device form a redundant mechanism to prevent safety accidents caused by closing the safety door when the personnel do not leave the robot welding area. The setting of the sensing device can also be redundant with the camera device, and close the line body when triggered, thereby preventing safety accidents caused by personnel mistakenly entering the robot welding area or the fixture during the line body processing process.

[0020] It can be understood that the beneficial effects of the second aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of a safety identification automobile production system provided by an embodiment of the present application;

[0023] Figure 2 This is a flow chart of a security identification method provided by an embodiment of the present application;

[0024] Figure 3 This is a flow chart of a security identification method provided by another embodiment of the present application;

[0025] Figure 4 This is a flow chart of a security identification method provided by another embodiment of the present application. DETAILED DESCRIPTION

[0026] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0027] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0028] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0029] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0030] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0031] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0032] like Figure 1As shown, a safety identification automobile production system provided by an embodiment of the present application includes a robot welding area 2, a loading area 3, a unloading area 1, a control device, a camera device, a sensing device, an identity recognition device 101, a safety door 102 and an alarm device 4;

[0033] The robot welding area 2 is a closed area isolated from the upper area 3 and the lower area 1, and is equipped with a welding robot 201, a handling robot 202, a fixture 204 and a camera device. The fixture 204 is configured to reciprocate between the upper area 3 and the robot welding area 2; the upper area 3 is an open area, adjacent to one side of the robot welding area 2, and is equipped with a sensing device; the lower area 1 is an open area, adjacent to the other side of the robot welding area 2, and is equipped with an identity recognition device 101 and a safety door 102; the signal input end of the control device is electrically connected to the signal output end of the camera device, the sensing device, the identity recognition device 101, and the safety door 102, and the signal output end is electrically connected to the signal input end of the safety door 102, the welding robot 201, the handling robot 202 and the alarm device 4;

[0034] The identity recognition device 101 is used to obtain the identity information of the personnel and send it to the control device. The control device is used to perform entry verification and exit verification on the identity information of the personnel, and control the safety door 102 to open when the entry verification passes, and control the safety door 102 to close when the exit verification passes and it is determined that no personnel are in the robot welding area 2;

[0035] The camera device is used to monitor personnel in the robot welding area 2 and send a monitoring warning signal to the control device when the robot welding area 2 captures an image of a person;

[0036] The sensing device is used to generate a sensing signal based on the shielding of the personnel when the personnel approaches the fixture 204 or enters the robot welding area 2, and send it to the control device;

[0037] The control device is also used to receive monitoring warning signals and sensing signals, and output an alarm signal to the alarm device 4 when it is determined that a person is in the robot welding area 2 or a person is close to the fixture 204, and shut down the welding robot 201 and the handling robot 202;

[0038] The alarm device 4 is used to issue a corresponding alarm based on the alarm signal output by the control device.

[0039] In the application, the robot welding area 2 is surrounded by the upper workpiece area 3 on one side and the lower workpiece area 1 on the other side. In order to form a compact layout, the three areas together form a rectangular space.

[0040] The embodiment of the present application improves the safety of production by dividing the conventional automobile production line into the robot welding area 2, the loading area 3, and the unloading area 1, and isolating the different areas from each other by closing the robot welding area 2. The identity recognition device 101 is set to identify the personnel entering the robot welding area 2, ensuring that only authorized personnel can enter or leave the key area, thereby effectively preventing unauthorized access. The control device receives the signals of the camera device, the sensing device, the identity recognition device 101, and the safety door 102, so that when someone enters the robot welding area 2 to work, the line body can be controlled to stop working, thereby ensuring the safety of the personnel entering the robot welding area 2. When the exit check passes and it is determined that no personnel are in the robot welding area 2, the safety door 102 is controlled to be closed, otherwise the safety door 102 is continuously opened, and the camera device and the identity recognition device 101 form a redundant mechanism to prevent safety accidents caused by closing the safety door 102 when the personnel do not leave the robot welding area 2. The setting of the sensing device can also be redundant with the camera device, and close the line body when triggered, thereby preventing safety accidents caused by personnel mistakenly entering the robot welding area 2 or the fixture 204 during the line body processing process.

[0041] In one embodiment, the robot welding area 2 is provided with a safety fence 207 for isolating the robot welding area 2 , and a safety door 102 for entering the safety fence 207 is provided on a side of the unloading area 1 away from the robot welding area 2 .

[0042] In application, the safety fence 207 is a high fence used to prevent people from entering the inside of the fence. The safety fence 207 extends into the lower part area 1 from one side toward the lower part area 1, and the fence is provided with an avoidance interval in the lower part area 1, which is used for the lower part area 1 to prevent the fixture 204 from receiving the automotive parts transmitted from the robot welding area 2. The safety fence 207 is provided with a normal opening at the corresponding position of the lower part area 1 and the safety door 102, or is closed under normal circumstances, but a movable opening that can be entered by moving part of the structure of the safety fence 207. When the person passes the verification at the identity recognition device 101, the safety door 102 opens, and the person can enter the robot welding area 2 through the opening of the safety fence 207 to perform related operations. The related operations can be inspection, maintenance, cleaning and other behaviors of the equipment.

[0043] In the application, the identity recognition device 101 is a face recognition access control system, which uses Fengshen-7 (touch screen version). It is a face front-end recognition tablet based on deep learning. It uses HiSilicon industrial-grade embedded Linux platform, built-in neural network computing processor, 2 million pixel full HD WDR color camera can easily cope with backlight, dark light, positive and negative face environment, and can store 50,000 face libraries locally for offline recognition and comparison. It has password management, personnel management, personnel authorization, entry and exit records and other functions, and can be used for facial entry of people entering.

[0044] The embodiment of the present application completely isolates the robot welding area 2 from the outside world by setting up a safety fence 207, and provides a special safety door 102 to enter the internal area on the side of the unloading area 1 away from the robot welding area 2. This design not only strengthens the physical protection measures and reduces the impact of external interference on the production process, but also provides a clear and controlled access channel for personnel. This ensures that only authenticated personnel can enter the high-risk area, thereby greatly reducing the risk of accidents and improving the operational safety of the entire system.

[0045] In one embodiment, a conveying track 203 is provided between the robot welding area 2 and the loading area 3, a fixture 204 is slidably arranged on the conveying track 203, an even number of welding robots 201 are separately arranged on both sides of the conveying track 203, and a handling robot 202 is arranged on the conveying track 203 at one end of the robot welding area 2;

[0046] The fixture 204 is used to load the workpieces from the loading area 3 and move to between the welding robots 201 through the conveying track 203;

[0047] The welding robot 201 is used to perform welding processing on the automobile parts on the fixture 204;

[0048] The transport robot 202 is used to transport the automobile parts processed on the fixture 204 to the unloading area 1 .

[0049] In application, the robot welding area 2 includes 5 automated robots, 4 of which are spot welding robots 201 and 1 is a gripper handling robot 202. The 4 spot welding robots are distributed on both sides of the welding fixture 204, and the gripper robot is located at one end of the welding fixture 204 facing the lower part area 1.

[0050] The embodiment of the present application introduces a transfer track 203 between the robot welding area 2 and the loading area 3, and configures a fixture 204 slidably set on the track and a separately set welding robot 201, thereby optimizing the material flow efficiency in the production process. The application of the handling robot 202 further simplifies the process from processing to finished product unloading, and realizes an efficient and automated production mode. This layout allows each component to function in its optimal working position, reduces unnecessary movement time, improves overall productivity and flexibility, and also reduces errors caused by manual operation.

[0051] In one embodiment, the camera device includes a first camera device 205 and a second camera device 206;

[0052] One side boundary of the first camera device 205 extends to the entrance of the safety door 102, and the other side boundary extends to the center line of a pair of welding robots 201 facing the loading area 3;

[0053] One side boundary of the second camera device 206 extends to between the two pairs of welding robots 201, and the other side boundary extends to the boundary line between the robot welding area 2 and the component loading area 3.

[0054] In the application, the camera device uses a personnel recognition camera with 8 million pixels and a wide-angle lens. The camera recognition adopts ∠0°~∠75° dynamic recognition of human form and has night recognition capabilities. The camera uses an AI event camera, which can continuously shoot people who enter the camera range. After the person leaves, the event ends and is archived. When a person breaks into the alarm area, the AI ​​camera sends a signal to the control device PLC, which controls the alarm and equipment shutdown.

[0055] The embodiment of the present application uses the first camera device 205 and the second camera device 206 to cover different key monitoring areas. This dual camera arrangement strategy can not only comprehensively monitor the robot welding area 2 and its surrounding environment, but also effectively avoid the existence of monitoring blind spots. The first camera device 205 covers the center line from the entrance of the safety door 102 to a pair of welding robots 201, ensuring effective monitoring of the entrance and the working area; while the second camera device 206 covers the area between the two pairs of welding robots 201 to the partition boundary, ensuring the monitoring of the channel between the welding core area and the loading area 3. This precise monitoring configuration greatly enhances the system's response speed and accuracy to abnormal situations.

[0056] In one embodiment, the angles between the optical axes of the first camera device 205 and the second camera device 206 and the horizontal plane are both 0-75°, the projection of the optical axis of the first camera device 205 on the ground is parallel to the center line passing through the robot welding area 2, the upper part area 3, and the lower part area 1, and the projection of the optical axis of the second camera device 206 on the ground is perpendicular to the center line. The first camera device 205 is installed on the steel column directly above the fixture, and the second camera device 206 is fixed to the column of the safety fence at the junction of the welding area and the upper part area, 2 meters from the ground.

[0057] In application, the second camera device 206 can be set on a column of the safety fence 207, and can be located on one side of the fence or the other opposite side of the fence, as long as the lens is directed toward the center line.

[0058] In the application, the pixel size of the camera device is 2um*2um. After taking pictures in real time through the camera, the warning area and the alarm area are demarcated. Among them, for the first camera device 205, the camera shooting range is located in the lower piece area 1, which is the warning area, that is, as long as the person enters the fence, the camera tracking will be triggered. Starting from the boundary line between the lower piece area 1 and the robot welding area 2, the part entering the robot welding area 2 is the alarm area. After recognizing that the body and limbs of the person enter the alarm area for more than 5cm, the device alarms, thereby avoiding false alarms of the device. For the second camera device 206, the boundary of the shooting picture on one side overlaps with the boundary of the first camera device 205 to avoid visual blind spots. The boundary on the other side is located at the boundary between the robot welding area 2 and the upper piece area 3. When it is recognized that the body and limbs of the person enter the alarm area of ​​the second camera device 206 for more than 5cm, an alarm will also be triggered. In this embodiment, the alarm of the first camera device 205 and the second camera device 206 refers to sending a monitoring warning signal to the control device to inform the PLC that a person has entered the robot welding area 2.

[0059] The specific setting of the optical axis angle (0-75°) and direction of the camera device in the embodiment of the present application takes into account various factors that may be encountered in the actual production environment, such as the range of the camera, changes in lighting conditions and the influence of obstacles, to ensure the optimization of image quality. In addition, the relationship between the projection of the optical axis of the camera device on the ground and the center line of the production line (parallel or vertical) ensures all-round and blind-angle-free monitoring of the robot welding area 2 and the loading area 3. Such a design not only improves the monitoring effect, but also ensures that potential security threats can be accurately identified and responded to under any circumstances.

[0060] In one embodiment, the sensing device includes a first sensing device 301, a second sensing device 302 and a third sensing device 303. The first sensing device 301 and the second sensing device 302 are arranged in parallel on both sides of the conveying track 203 of the lower work area 1. The third sensing device 303 is perpendicular to the first sensing device 301 and the second sensing device 302, and is arranged at the junction of the robot welding area 2 and the upper work area 3.

[0061] In the application, the sensing device is a photoelectric sensor, which realizes high-level or low-level output by sending laser signal transmitting end, grating and receiving end and other devices. Under normal circumstances, when there is no obstruction, a high-level signal is output, and when there is an obstruction, a low-level signal is output. Therefore, by judging whether the level signal jumps, it can be judged whether there is a person triggering the safety warning line formed by the photoelectric sensor. Among them, the sensing devices located on both sides of the conveying track 203 of the three sensing devices are used to detect whether there is a person entering the fixture 204, and the other sensing device is used to detect whether there is a person entering the robot welding area 2, which is used to form redundancy with the camera device to improve the accuracy of personnel detection in the robot welding area 2.

[0062] In the application, during the loading stage, the operator will block the photoelectric sensor due to the loading operation, so the PLC ignores the sensing signal during the loading stage. In the non-loading stage, personnel are not allowed to enter the safety warning line formed by the photoelectric sensor. At this time, the PLC monitors the state of the sensing signal. When the level signal jumps, an alarm is triggered and all equipment on the line is shut down to ensure the safety of personnel.

[0063] The embodiment of the present application introduces multiple sensing devices (first, second, and third sensing devices 303) and arranges them at key locations to form a multi-level personnel activity monitoring network. These sensing devices can detect the behavior of personnel approaching the fixture 204 or entering the robot welding area 2 in real time, and trigger corresponding early warning mechanisms according to changes in sensing signals to quickly respond to emergencies. The setting of this multi-level sensing device not only improves the system's perception ability, but also provides an additional layer of security to prevent potential dangers, significantly enhancing the safety performance of the system.

[0064] like Figure 2 As shown, a method for safely identifying an automobile production system provided in an embodiment of the present application includes the following steps S101 to S104:

[0065] Step S101: In response to the user's entry operation, obtain the person's identity information to perform entry verification.

[0066] Step S102: When the entry verification is passed, the safety door 102 is controlled to open.

[0067] Step S103: In response to the user's logout operation, obtain the personnel identity information to perform logout verification.

[0068] Step S104: When the exit check passes and it is determined that no personnel are in the robot welding area 2, the safety door 102 is controlled to close.

[0069] In applications, such as Figure 3 As shown, this process is the control process of the safety door 102 when a person enters the automation line. It is specifically implemented as follows:

[0070] When a person enters the line, he or she first needs to enter the facial recognition access control system and obtain authorization permission. The facial recognition access control system will feed back to the PLC control program, and the security door 102 can be opened. If the person does not obtain facial recognition, he or she cannot obtain authorization permission and cannot open the security door 102 of the line equipment, thereby ensuring that the person passes the authorization permission.

[0071] After the personnel are authorized, they open the safety door 102. At this time, the safety door 102 feeds back the open state signal to the PLC, and the PLC outputs an alarm signal to the alarm device 4. The alarm device 4 can use one or more alarm tricolor lights. In this embodiment, two alarm tricolor lights (i.e., alarm tricolor lights A and B) are used. At this time, the yellow light warning of the alarm tricolor lights A and / or B is triggered. When a person enters the inside of the line body, the personnel identification camera (the first camera device 205 and / or the second camera device 206) captures the personnel entry status and feeds back to the PLC (which can be a monitoring warning signal, which is realized by a level signal and can also be transmitted in other data forms), and the PLC outputs an alarm signal to the alarm device 4. The alarm tricolor lights A and / or B light up the red light on the basis of the yellow light. At this time, both alarm tricolor lights light up the yellow and red lights, and the buzzer 5 sounds a prompt sound. The alarm tricolor lights can be set on the fence posts between the robot welding area 2 and the loading area 3, or they can be set in other areas that are convenient for warning.

[0072] After the personnel finish their work in the robot welding area 2 and walk out of the line, the first camera device 205 and / or the second camera device 206 can no longer capture the personnel image, and a corresponding indication signal, such as a level signal, is fed back to the PLC. The PLC control program feeds back the information to the alarm tricolor light and the buzzer 5, the alarm tricolor light turns yellow, and the buzzer 5 turns off.

[0073] When the face recognition access control system fails to identify the personnel exit information, the safety door 102 cannot be closed and the line body cannot enter the automatic operation mode. The personnel confirm the exit of the face recognition access control system at the door. When the face recognition access control system recognizes the personnel exit, it will feedback to the PLC control system, and the safety door 102 is allowed to be closed. After the safety door 102 is closed, the yellow alarm tricolor light goes out, and after the line body enters the automatic operation mode, the green alarm tricolor light turns on.

[0074] The embodiment of the present application obtains and verifies the identity information of personnel to perform accurate entry and exit verification, ensuring that only authorized personnel can access specific areas. It also combines the unmanned detection function in the area, and allows the security door 102 to be closed only when it is confirmed that no one is there and the exit verification passes, ensuring that all operations are performed under strict safety regulations.

[0075] In one embodiment, it further includes:

[0076] Acquire a sensing signal from a sensing device;

[0077] If a person image is captured in the robot welding area 2, or a level state change of the sensing signal is detected in the non-loading stage, an alarm signal is output to the alarm device 4 and the welding robot 201 and the handling robot 202 are controlled to shut down.

[0078] In the application, when a person breaks into the robot welding area 2, he / she can be captured by the camera. If he / she enters the robot welding area 2 from the loading area 3, he / she can also be identified by the photoelectric sensing device (i.e., safety grating). When a person in the loading area 3 enters the safety warning line on both sides of the fixture 204, he / she will also be identified. The above situation will trigger the alarm tricolor light and the line body will stop suddenly. The line body will not return to normal until the person is reset.

[0079] The embodiment of the present application adds the function of obtaining the signal of the sensing device, and adjusts the alarm status and machine operation according to these signals, so that the system has stronger adaptability and safety. When the system detects that someone has entered the robot welding area 2 or the sensing signal changes in the non-loading stage, it will immediately output an alarm signal and stop the operation of the relevant machine. This instant response mechanism can detect and prevent potential risks at the first time, protecting the safety of equipment and personnel. This function enhances the intelligence level of the system, enabling it to respond to various complex work scenarios more flexibly.

[0080] In one embodiment, it further includes:

[0081] When the safety door 102 is in the open state, a first alarm signal is output;

[0082] When a person image is captured in the robot welding area 2, or a level state change of the sensing signal is detected in the non-loading stage, a second alarm signal is output;

[0083] When the alarm device 4 receives the first alarm signal, it issues a first alarm;

[0084] When the alarm device 4 receives the second alarm signal, it issues a second alarm and controls the welding robot 201 and the handling robot 202 to shut down.

[0085] The first alarm and the second alarm have different alarm forms.

[0086] The embodiment of the present application refines the alarm signal type and defines different levels of alarm forms (such as the first alarm signal and the second alarm signal), so that the alarm information is more specific and clear, which is convenient for the staff to quickly judge the extent of the emergency and take corresponding measures. The hierarchical alarm mechanism not only improves the efficiency of emergency handling, but also reduces the possibility of false alarms and ensures the stable operation of the system. By conveying alarm information through dual visual and auditory stimulation, the attention of the staff can be quickly attracted, helping them make correct decisions and minimize risks and losses.

[0087] In one embodiment, the first alarm is a first color light alarm, and the second alarm is a second color light and sound alarm.

[0088] The embodiment of the present application uses a color-differentiated first alarm and a second alarm design that includes color and sound prompts to improve the communication effect of the alarm information through multi-sensory stimulation. This design not only allows staff to quickly notice the alarm, but also helps them quickly understand the urgency of the incident and take appropriate actions. In this way, the system can provide a safer and more reliable working environment while maintaining efficient operation, enhancing the level of safety management on site.

[0089] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A safety identification automobile production system, characterized in that: The system includes a robot welding area, a loading area, an unloading area, a camera device, a sensing device, an identity recognition device, a safety door, an alarm device and a control device; The robot welding area is a closed area isolated from the upper area and the lower area, and is equipped with a welding robot, a handling robot, a fixture and a camera device. The fixture is configured to reciprocate between the upper area and the robot welding area; the upper area is an open area, adjacent to one side of the robot welding area, and is equipped with a sensing device; the lower area is an open area, adjacent to the other side of the robot welding area, and is equipped with an identity recognition device and a safety door; the signal input end of the control device is electrically connected to the signal output end of the camera device, the sensing device, the identity recognition device and the safety door, and the signal output end is electrically connected to the signal input end of the safety door, the welding robot, the handling robot and the alarm device; The identity recognition device is used to obtain personnel identity information and send it to the control device, and the control device is used to perform entry verification and exit verification on the personnel identity information, and control the safety door to open when the entry verification passes, and control the safety door to close when the exit verification passes and it is determined that no personnel are in the robot welding area; The camera device is used to monitor personnel in the robot welding area and send a monitoring warning signal to the control device when a personnel image is captured in the robot welding area; The sensing device is used to generate a sensing signal based on the shielding of the personnel when the personnel approaches the fixture or enters the robot welding area, and send it to the control device; The control device is also used to receive the monitoring warning signal and the sensing signal, and output an alarm signal to the alarm device when it is determined that a person is in the welding area of ​​the robot or a person is close to the fixture, and shut down the welding robot and the handling robot; The alarm device is used to issue a corresponding alarm based on the alarm signal output by the control device.

2. The safety identification automobile production system according to claim 1, characterized in that: The robot welding area is provided with a safety fence for isolating the robot welding area, and a safety door for entering the interior of the safety fence is provided on the side of the unloading area away from the robot welding area.

3. The safety identification automobile production system according to claim 1, characterized in that: A conveying track is provided between the robot welding area and the loading area, the fixture is slidably arranged on the conveying track, the welding robots are an even number and are separately arranged on both sides of the conveying track, and the handling robot is arranged on the conveying track at one end of the robot welding area; The fixture is used to load the workpieces from the loading area and move to between the welding robots through the conveying track; The welding robot is used to perform welding processing on the automobile parts on the fixture; The transport robot is used to transport the automobile parts processed on the fixture to the unloading area.

4. The safety identification automobile production system as claimed in claim 3, characterized in that: The camera device includes a first camera device and a second camera device; One side boundary of the first camera device extends to the entrance of the safety door, and the other side boundary extends to the center line of a pair of welding robots facing the loading area; One side boundary of the second camera device extends to between the two pairs of welding robots, and the other side boundary extends to the boundary line of the robot welding area and the loading area.

5. The safety identification automobile production system according to claim 4, characterized in that: The angles between the optical axes of the first camera device and the second camera device and the horizontal plane are both 0 to 75 degrees. The projection of the optical axis of the first camera device on the ground is parallel to the center line passing through the robot welding area, the upper work area, and the lower work area. The projection of the optical axis of the second camera device on the ground is perpendicular to the center line.

6. The safety identification automobile production system as claimed in claim 3, characterized in that: The sensing device includes a first sensing device, a second sensing device and a third sensing device. The first sensing device and the second sensing device are arranged in parallel on both sides of the conveying track of the lower piece area. The third sensing device is perpendicular to the first sensing device and the second sensing device, and is arranged at the junction of the robot welding area and the upper piece area.

7. A method for safely identifying an automobile production system, characterized in that: include: In response to the user's entry operation, obtaining personnel identity information for entry verification; When the entry verification is passed, the safety door is controlled to open; Monitor the robot welding area, and determine that no personnel are in the robot welding area when no personnel image is captured in the robot welding area; In response to the user's logout operation, obtaining the person's identity information for logout verification; When the exit check passes and it is determined that no personnel are in the robot welding area, the safety door is controlled to close.

8. The security identification method according to claim 7, characterized in that: Also includes: Acquire a sensing signal from a sensing device; If a person image is captured in the robot welding area, or a level state change of the sensing signal is detected in the non-loading stage, an alarm signal is output to the alarm device and the welding robot and the handling robot are controlled to shut down.

9. The security identification method according to claim 8, characterized in that: Also includes: When the safety door is in an open state, outputting a first alarm signal; When a person image is captured in the robot welding area, or when a level state change of the sensing signal is detected in a non-loading stage, a second alarm signal is output; When the alarm device receives the first alarm signal, it issues a first alarm; When the alarm device receives the second alarm signal, it issues a second alarm and controls the welding robot and the handling robot to shut down. The first alarm and the second alarm have different alarm forms.

10. The security identification method according to claim 9, characterized in that: The first alarm is a first color light alarm, and the second alarm is a second color light and sound alarm.

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