AGV laser warning assembly

Abstract

The utility model relates to an AGV laser warning assembly, laser lines can be projected around an AGV through a linear laser lamp, a safety area is delimited, the AGV can pass smoothly as long as no personnel or obstacles exist in the safety area, images around the AGV are shot through a 3D obstacle avoidance camera, the driving safety of the AGV is judged, and the AGV can pass through the 3D obstacle avoidance camera. And an alarm can be used for alarming and prompting. The AGV laser warning assembly comprises a laser lamp, a 3D obstacle avoidance camera and an alarm, the laser lamp is used for projecting laser lines around the AGV to form a closed safety area with the AGV as the center, and the 3D obstacle avoidance camera is used for collecting images around the AGV and judging whether intruding objects influencing safe passing of the AGV exist in the safety area or not. And the 3D obstacle avoidance camera is in electric signal connection with a driving controller and an alarm of the AGV.

Description

Technical Field

[0001] The utility model relates to the technical field of AGV, in particular to an AGV laser warning component. Background Art

[0002] AGV is an intelligent autonomous device that can operate autonomously without human intervention. During operation, AGV needs to avoid collisions with people or surrounding objects. Therefore, AGV equipment needs to be equipped with corresponding warning reminders and anti-collision measures, otherwise, in the face of emergencies, it may cause casualties and losses of equipment and property.

[0003] On existing AGVs, three-color lights are generally used for safety warnings, and some also add voice prompts to assist in warning measures. The different colors and flashing states of the three-color lights can show the current operating status of the AGV, such as: red light is always on, green light is always on, yellow light is always on, red light flashes, green light flashes, yellow light flashes. Voice prompts can more intuitively express the current operating status of the AGV body. Voice prompts are generally set to prompt voices such as: AGV passing, please pay attention to avoid, etc.

[0004] The disadvantage of the existing warning method is that different states of the three-color light usually represent different meanings, and directly observing the three-color light cannot quickly determine the AGV status through the light. In the case of panic, it is even more difficult to avoid the AGV vehicle. The voice prompt has a certain delay, and the emergency situation cannot make the personnel have a clear understanding. If some voices are too long, the personnel cannot listen to them all in a short time. Summary of the invention

[0005] The utility model aims to provide an AGV laser warning component to solve the problem that the existing AGV warning measures combining three-color lights and voices described in the background technology cannot quickly determine the traffic status of the AGV.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An AGV laser warning component includes a straight laser light, a 3D obstacle avoidance camera and an alarm. The straight laser light is used to project laser lines around the AGV to form a closed safety area centered on the AGV. The 3D obstacle avoidance camera is used to collect images around the AGV and determine whether there are intruders in the safety area that affect the safe passage of the AGV. The 3D obstacle avoidance camera is connected to the driving controller of the AGV and the alarm by electrical signals.

[0008] In the above scheme, the laser lights include straight laser lights arranged on the AGV vehicle in four directions, front, back, left, and right. By setting four straight laser lights, a rectangular safety area can be formed around the AGV vehicle. The setting range of the safety area can be adjusted according to actual conditions. For example, it can be adjusted to a range of 1 meter from the AGV vehicle as a safety area. When an intruder enters this range, the 3D obstacle avoidance camera captures the image and can sound an alarm through the alarm. At the same time, the AGV vehicle controller controls the AGV vehicle to slow down, brake or turn. Moreover, by setting a safety area, the staff can also quickly determine whether there are obstacles entering the safety area, and then determine whether there are obstacles to the passage of the AGV vehicle, so as to remove obstacles in time and ensure the smooth passage of the AGV vehicle.

[0009] In the above scheme, the alarm is an audible and visual alarm, which includes an alarm light and a sound alarm, the alarm light is a three-color alarm light, and the sound alarm is a buzzer alarm or a voice alarm. By setting the audible and visual alarm, the driving status of the AGV can be displayed, and the audible and visual alarm mode can be a three-color alarm light combined with a buzzer alarm or a voice alarm, so that the staff can quickly judge the traffic status of the AGV.

[0010] In the above scheme, the 3D obstacle avoidance cameras include at least two, which are respectively arranged at the front and rear of the AGV. This arrangement ensures that when the AGV turns, the 3D obstacle avoidance cameras can still capture images around the AGV without blind spots, and accurately determine whether it can pass safely.

[0011] It should be noted that the 3D obstacle avoidance camera in the present invention needs to analyze the collected images to determine whether there are intruders in the safety area demarcated by the laser light. If there are no people or obstacles in the safety area, it is determined that the AGV can pass smoothly. If there are people or obstacles, it means that the AGV has obstacles and cannot pass smoothly. This recognition technology requires the use of image recognition technology in the prior art, and the software of this image recognition technology can use existing image recognition software. Therefore, the present invention does not need to make improvements to the software part, and the present invention complies with the provisions of the protected object stipulated in the Patent Law.

[0012] The utility model has positive effects: the AGV laser warning component of the utility model is equipped with a straight laser light on the AGV vehicle. The straight laser light can project laser lines around the AGV vehicle to demarcate a safe area. As long as there are no personnel or obstacles in the safe area, the AGV vehicle can pass smoothly. If there are personnel or obstacles entering the safe area, there is a safety risk. This setting can quickly determine the safety of the AGV vehicle during driving, so that the staff can quickly determine the safety risk and eliminate the existing safety hazards in time. The AGV laser warning component of the utility model, the three-color warning light and the vehicle body sound alarm can be used in combination with the straight laser light. When the AGV vehicle is at a safety risk, an alarm can be quickly sounded. Because the safety area is demarcated by the straight laser light, the safety status of the AGV vehicle can be quickly determined in combination with the safety area. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the AGV laser warning component of the present utility model.

[0014] Figure 2 This is a structural block diagram of the AGV laser warning component of the present utility model.

[0015] The reference numerals in the figure are: AGV vehicle 1, straight laser light 2, 3D obstacle avoidance camera 3, alarm 4, three-color warning light 41, sound alarm 42, safety area 5. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is described clearly and completely below through embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] like Figure 1 An AGV laser warning component is shown, which includes a straight laser light 2, a 3D obstacle avoidance camera 3 and an alarm 4. The straight laser light 2 is used to project laser lines around the AGV vehicle 1 to form a closed safety area 5 centered on the AGV vehicle 1. The 3D obstacle avoidance camera 3 is used to collect images around the AGV vehicle 1 and determine whether there are intruders in the safety area that affect the safe passage of the AGV vehicle 1. The 3D obstacle avoidance camera 3 is electrically connected to the driving controller of the AGV vehicle 1 and the alarm 4.

[0018] The alarm 4 is an audible and visual alarm, which includes an alarm light and a sound alarm. The alarm light is a three-color warning light 41. The three-color warning light 41 can adopt an existing three-color warning light, which can emit red, yellow and green lights. There are six states: red light is always on, green light is always on, yellow light is always on, red light flashes, green light flashes, and yellow light flashes. The six operating states of the AGV vehicle can be displayed through the six states.

[0019] The sound alarm 42 is a buzzer alarm or a voice alarm, which can emit an alarm sound, such as a rapid beeping sound, to warn people around.

[0020] The line laser light 2 can adopt an existing line laser light, for example, the line laser light 2 can select a line laser light that can emit red laser. The line laser light 2 projects laser lines around the vehicle body to define a safe area for the activity space of the AGV vehicle 1, such as Figure 1 As shown, the dotted line range is the safety area 5 demarcated by the straight laser light 2 for the AGV vehicle 1. There are four straight laser lights 2, forming a rectangular safety area 5 around the AGV vehicle 1. As long as no personnel or obstacles enter the safety area 5, the AGV vehicle 1 is safe. When personnel or obstacles enter the safety area 5, the AGV vehicle 1 will have safety risks when driving. After the 3D obstacle avoidance camera 3 captures the image of personnel or obstacles entering the safety area, it can send a signal to the three-color warning light 41 and the vehicle body sound alarm 42 to sound and light alarm. If a person breaks into the safety area, he can quickly leave the safety area to avoid accidents. If an obstacle is in the safety area, a signal is sent to the workbench while the alarm is sounded, so that the maintenance personnel can quickly arrive at the scene, remove the obstacle, and ensure the safe passage of the AGV vehicle.

[0021] The 3D obstacle avoidance camera 3 may use an existing 3D obstacle avoidance camera. The 3D obstacle avoidance camera 3 can capture the road conditions during the driving of the AGV vehicle 1 to determine whether the AGV vehicle 1 has a safety risk.

[0022] As a preferred embodiment, the 3D obstacle avoidance camera 3 includes at least two, and the 3D obstacle avoidance cameras 3 are respectively arranged at the front and rear of the AGV vehicle 1. Through this arrangement, it can be ensured that when the AGV vehicle 1 turns, the 3D obstacle avoidance camera 3 can still collect images around the AGV vehicle without blind spots, and accurately determine whether it can pass safely.

[0023] The AGV laser warning component of this utility model can mark the safety area with a straight laser light, reminding nearby workers to pay attention to the existence and operation of the AGV, and avoid intrusion into the travel range of the AGV. If the AGV encounters an obstacle during movement, the AGV must be able to identify the obstacle promptly and accurately, and avoid or stop in time. By setting a three-color warning light, the status of the AGV can be judged by different light colors and constant or flashing states, thereby achieving a warning effect.

[0024] During the AGV's movement, it also needs to autonomously identify obstacles. The 3D obstacle avoidance camera can enable the AGV to autonomously identify and avoid obstacles. A 3D obstacle avoidance camera needs to be installed at the front and back, so that it can also detect obstacles when the AGV turns. When an obstacle is detected, the AGV can make a beeping sound to alert people around the AGV transport vehicle. When encountering an obstacle that can be circumvented, it can turn around and bypass it. When encountering a situation where it cannot be circumvented, it can also be used to send a help message to the operator to ask for help in moving the obstacle.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An AGV laser warning component, characterized in that: It includes a straight laser light, a 3D obstacle avoidance camera and an alarm. The straight laser light is used to project laser lines around the AGV to form a closed safety area centered on the AGV. The 3D obstacle avoidance camera is used to collect images around the AGV and determine whether there are intruders in the safety area that may affect the safe passage of the AGV. The 3D obstacle avoidance camera is electrically connected to the AGV's travel controller and alarm.

2. The AGV laser warning assembly according to claim 1, characterized in that: The in-line laser lights include in-line laser lights arranged on the AGV vehicle and facing four directions: front, back, left, and right.

3. The AGV laser warning assembly according to claim 1, characterized in that: The alarm is an audible and visual alarm, which includes an alarm light and a sound alarm. The alarm light is a three-color warning light, and the sound alarm is a buzzer alarm or a voice alarm.

4. The AGV laser warning assembly according to claim 1, characterized in that: The 3D obstacle avoidance cameras include at least two, and the 3D obstacle avoidance cameras are respectively arranged at the front and rear of the AGV vehicle.

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