Brightness adjusting method, electronic equipment and field bridge

Abstract

The invention relates to a brightness adjusting method, electronic equipment and a field bridge. The brightness adjusting method comprises the following steps: acquiring a target image; obtaining the brightness of a target area in the target image, and determining the brightness difference between the brightness and the target brightness; judging whether the absolute value of the brightness difference is greater than a preset threshold; and if the absolute value of the brightness difference is greater than a preset threshold, adjusting the brightness of the lighting equipment based on the brightness difference. Thus, the brightness of the lighting equipment is adjusted based on the brightness difference between the brightness of the target area in the target image and the target brightness, the brightness of the target area can be adjusted in real time, it is ensured that the brightness of the target area is within an ideal range, overexposure or underexposure of the target image is avoided, a foundation is laid for accurately grabbing and releasing a container, and the efficiency of grabbing and releasing the container is improved. Moreover, the brightness difference is compared with the preset threshold value to adjust the brightness of the lighting equipment, so that the problem of brightness oscillation in the adjustment process can be completely eradicated, the accuracy and stability of brightness adjustment are ensured, and the working efficiency of the field bridge is improved.

Description

Technical Field

[0001] The present application relates to the technical field of engineering machinery, and in particular to a brightness adjustment method, an electronic device and a field bridge. Background Art

[0002] With the development of science and technology, yard cranes, as engineering machinery equipment widely used in ports, railway stations and other areas, have provided great convenience for the loading and unloading of containers. Among them, improving the accuracy and stability of brightness adjustment of yard cranes when working at night has always attracted people's attention as an important technical means to improve the working efficiency of yard cranes. Summary of the invention

[0003] In view of this, the present application is committed to providing a brightness adjustment method, an electronic device and a field bridge, which can improve the accuracy and stability of brightness adjustment when the field bridge works at night, thereby improving the working efficiency of the field bridge.

[0004] A first aspect of the present application provides a brightness adjustment method, which is applied to a field bridge, wherein a lighting device is provided on a hanger of the field bridge, and the lighting device provides lighting for a target area; the method comprises:

[0005] Acquire a target image; the target image is an image including the target area;

[0006] Acquire the brightness of the target area in the target image, and determine the brightness difference between the brightness and the target brightness;

[0007] Determining whether the absolute value of the brightness difference is greater than a preset threshold;

[0008] If the absolute value of the brightness difference is greater than a preset threshold, the brightness of the lighting device is adjusted based on the brightness difference.

[0009] Optionally, it also includes:

[0010] If the absolute value of the brightness difference is less than or equal to a preset threshold, the brightness of the lighting device is maintained.

[0011] Optionally, an image acquisition device is also provided on the lifting device of the field bridge;

[0012] The acquiring of the target image comprises:

[0013] Based on the image acquisition device, the target area is imaged to obtain the target image.

[0014] Optionally, the field bridge includes 8 lighting devices and 4 image acquisition devices; the 4 corner ends of the spreader correspond to 4 target areas; the target areas include areas corresponding to the corner ends of the container to be grabbed and far from the ground, or areas corresponding to the corner ends of the container to be lowered and close to the ground;

[0015] The four image acquisition devices are respectively arranged at the four corner ends of the sling, and each corner end is provided with two lighting devices; the distance between the two lighting devices located at the same corner end in the horizontal direction is greater than a preset distance;

[0016] The step of performing image acquisition on the corresponding target area based on the image acquisition device to obtain the target image includes:

[0017] Under the illumination of the illumination device, the image acquisition device located at the same corner end acquires the image of the corresponding target area to obtain the target image.

[0018] Optionally, acquiring the brightness of the target area in the target image includes:

[0019] Determine the region where the target region is located from the target image;

[0020] The brightness mean of the region where the target region is located is calculated, and the brightness mean is determined as the brightness of the target region in the target image.

[0021] Optionally, adjusting the brightness of the lighting device based on the brightness difference includes:

[0022] If the brightness difference is greater than 0, then based on a preset adjustment coefficient and the brightness difference, lowering the brightness of the lighting device;

[0023] If the brightness difference is less than 0, the brightness of the lighting device is increased based on a preset adjustment coefficient and the brightness difference.

[0024] Optionally, before acquiring the target image, the method further includes:

[0025] Detecting whether the height of the spreader is less than a preset height;

[0026] If the height of the sling is less than the preset height, the step of acquiring the target image is continued.

[0027] A second aspect of the present application provides an electronic device, including:

[0028] A processor, and a memory connected to the processor;

[0029] The memory is used to store computer programs;

[0030] The processor is used to call and execute the computer program in the memory to perform the brightness adjustment method as described in the first aspect of the present application.

[0031] A third aspect of the present application provides a field bridge, comprising the electronic device as described in the second aspect of the present application;

[0032] Wherein, a lighting device is arranged on the hoisting device of the field bridge, and the lighting device provides lighting for the target area.

[0033] Optionally, it includes 8 of the lighting devices and 4 of the image acquisition devices; the 4 image acquisition devices are respectively arranged at the 4 corner ends of the sling, and each corner end is provided with 2 of the lighting devices; the distance between the 2 lighting devices located at the same corner end in the horizontal direction is greater than a preset distance.

[0034] In the scheme of the present application, the brightness adjustment method can be applied to the field bridge. The field bridge's hoist is provided with a lighting device, and the lighting device provides lighting for the target area. When implemented, the target image can be first obtained, and the target image is an image including the target area; then the brightness of the target area in the target image is obtained, and the brightness difference between the brightness and the target brightness is determined; it is determined whether the absolute value of the brightness difference is greater than the preset threshold; if the brightness difference is greater than the preset threshold, it means that the brightness of the target area is too high or too low, and the brightness of the lighting device can be adjusted based on the brightness difference. In this way, the brightness of the lighting device is adjusted based on the brightness difference between the brightness of the target area in the target image and the target brightness, which can achieve real-time adjustment of the brightness of the target area, thereby ensuring that the brightness of the target area is within the ideal range, avoiding overexposure or underexposure of the target image, and laying the foundation for accurately grabbing and releasing containers. In addition, by comparing the brightness difference with the preset threshold to adjust the brightness of the lighting device, the problem of brightness oscillation during the adjustment process can be eliminated, ensuring the accuracy and stability of the brightness adjustment, thereby improving the working efficiency of the field bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, 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 creative work.

[0036] Figure 1 It is a flowchart of a brightness adjustment method provided by an embodiment of the present application.

[0037] Figure 2It is a structural schematic diagram of a sling platform provided in one embodiment of the present application.

[0038] Figure 3 It is a schematic diagram of a target image provided by an embodiment of the present application.

[0039] Figure 4 It is a structural schematic diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] Currently, when the yard crane works at night, cameras are usually used to shoot containers for position identification. Therefore, the setting of the light source plays a key role in the accuracy of position identification.

[0042] Taking the automated yard crane as an example, the light source is set on the main beam of the yard crane and projects onto the ground. However, since the relative position of the light source and the target container is not fixed, under certain working conditions, there will be obstructions between the light source and the target container, resulting in the light source being unable to be projected to the target container. At this time, the overall picture taken by the camera is dark, resulting in poor recognition effect.

[0043] Therefore, how to improve the accuracy and stability of brightness adjustment when the field bridge works at night is an urgent problem to be solved.

[0044] To this end, an embodiment of the present application provides a brightness adjustment method, which can be applied to a field crane, where a lighting device is provided on a hanger of the field crane, and the lighting device provides lighting for a target area.

[0045] like Figure 1 As shown, the brightness adjustment method may at least include the following steps:

[0046] S101, acquiring a target image; the target image is an image including a target area.

[0047] The target area is the area that needs to be supplemented with light. When implemented, the target area can be the area where the container is grabbed or lowered during the field crane operation. Using lighting equipment to supplement the target area can make the target area in the target image clearer, thereby providing a basis for accurately identifying the location of the area where the container is grabbed or lowered, ensuring the accuracy of the field crane operation and improving the operation efficiency.

[0048] In the application, when container location recognition is required, the brightness of the target area can be adjusted first to avoid overexposure or underexposure of the target image.

[0049] S102: Acquire the brightness of the target area in the target image, and determine the brightness difference between the brightness and the target brightness.

[0050] After acquiring the target image, the brightness of the target area in the target image can be obtained, providing data support for determining whether the target image is overexposed or underexposed, which may affect recognition accuracy.

[0051] The target brightness is a preset ideal brightness, that is, the target area under the target brightness can show more area details to ensure the accuracy of recognition.

[0052] Specifically, the value of the target brightness may be manually set based on user experience, or determined based on multiple tests, which is not specifically limited here.

[0053] After obtaining the brightness of the target area in the target image, the brightness difference can be determined according to the target brightness, which provides a basis for subsequent adjustment of the brightness of the lighting equipment.

[0054] S103: Determine whether the absolute value of the brightness difference is greater than a preset threshold.

[0055] Among them, the preset threshold can be set according to actual needs and is not specifically limited here.

[0056] S104: If the absolute value of the brightness difference is greater than a preset threshold, adjust the brightness of the lighting device based on the brightness difference.

[0057] If the absolute value of the brightness difference is greater than the preset threshold, it means that there is a large difference between the brightness of the target area and the target brightness, and the brightness of the target area needs to be adjusted. Based on the brightness difference, the brightness of the lighting equipment can be adjusted to reduce the brightness difference so that the brightness of the target area is at the optimal brightness.

[0058] In this embodiment, the target image can be first obtained, and the target image is an image including the target area; then the brightness of the target area in the target image is obtained, and the brightness difference between the brightness and the target brightness is determined; it is determined whether the absolute value of the brightness difference is greater than a preset threshold; if the brightness difference is greater than the preset threshold, it means that the brightness of the target area is too high or too low, and the brightness of the lighting device can be adjusted based on the brightness difference. In this way, the brightness of the lighting device is adjusted based on the brightness difference between the brightness of the target area in the target image and the target brightness, so that the brightness of the target area can be adjusted in real time, thereby ensuring that the brightness of the target area is within the ideal range, avoiding overexposure or underexposure of the target image, and laying the foundation for accurate container capture and release. In addition, by comparing the brightness difference with the preset threshold to adjust the brightness of the lighting device, the problem of brightness oscillation during the adjustment process can be eliminated, ensuring the accuracy and stability of brightness adjustment, thereby improving the working efficiency of the field bridge.

[0059] In some implementations, the brightness adjustment method may further include: if the absolute value of the brightness difference is less than or equal to a preset threshold, maintaining the brightness of the lighting device.

[0060] If the absolute value of the brightness difference is less than or equal to the preset threshold, it means that the brightness of the target area is not much different from the target brightness, and the brightness of the target area does not need to be adjusted, so the brightness of the current lighting device can be maintained.

[0061] In some embodiments, in order to acquire the target image in real time and ensure the real-time adjustment of the brightness of the target area, an image acquisition device may be provided on the hoist of the field bridge; accordingly, when acquiring the target image, the target area may be imaged based on the image acquisition device to obtain the target image.

[0062] Among them, the image acquisition device may include a camera. The camera is set on the sling. The shooting area of ​​the camera includes the target area. Based on this, the target image can be directly acquired through the camera. The target image can be used to detect and adjust the brightness of the target area, and can also be used to identify and adjust the position of the container.

[0063] It should be noted that a container has 6 faces, and the area where every three faces intersect is a corner end. Each container has 8 corner ends, of which every 4 are located in the same horizontal plane. That is, on the container to be grabbed or lowered by the sling, there are 4 corner ends far from the ground and 4 corner ends close to the ground.

[0064] When the spreader is lowering a container, the lowering position of the container needs to be detected to ensure that the container to be lowered can be accurately placed at the target position. Similarly, when the spreader is grabbing a container, the grabbing position of the container needs to be detected to ensure that the container can be accurately grabbed. When detecting the lowering position / grasping position of the container, the lowering position / grasping position can be identified through the target image.

[0065] Accordingly, the target area may include an area corresponding to a corner end of the container to be grabbed and away from the ground, or an area corresponding to a corner end of the container to be lowered and close to the ground.

[0066] When the spreader grabs the container, the grabbing position is located at the four corners of the container facing away from the ground, that is, the four corners of the container far from the ground; when the spreader lowers the container, the lowering position is the four corners of the container close to the ground, that is, the positions corresponding to the four corners of the container close to the ground. Therefore, the four corners of the spreader correspond to the four target areas.

[0067] In order to accurately obtain the lowering position / grabbing position of the container, the number of lighting devices may be 8 and the number of image acquisition devices may be 4.

[0068] like Figure 2 As shown, four image acquisition devices (illustrated as L1, L2, L3 and L4) are respectively arranged at the four corner ends of the spreader, and the shooting area of ​​each image acquisition device includes the target area corresponding to the corner end where the image acquisition device is located. In this way, the images of the corresponding target areas can be obtained respectively through the four image acquisition devices.

[0069] Each corner is equipped with 2 lighting devices (such as Figure 2 As shown in S1 and S2, or S3 and S4, or S5 and S6, or S7 and S8), wherein the distance in the horizontal direction between the two lighting settings located at the same corner end is greater than a preset distance.

[0070] Among them, the preset distance can be set according to actual needs and is not specifically limited here.

[0071] It should be noted that the distance between the two lighting devices at the same corner end in the horizontal direction is greater than the preset distance, which can increase the lighting range and thus improve the accurate identification of the container position in the target area.

[0072] Specifically, two lighting devices located at the same corner end can be set at the two sides constituting the corner end, and the distance between the two lighting devices in the horizontal direction is greater than the preset distance. Such a setting can enable the lighting area to involve at least two sides of the container in the target area, thereby providing a guarantee for more accurate identification of the lowering position / grabbing position.

[0073] Correspondingly, the above-mentioned image acquisition device is based on the target area to acquire the target image, which can specifically include: under the illumination of the lighting device, the image acquisition device located at the same corner end acquires the image of the corresponding target area to obtain the target image.

[0074] Based on the brightness provided by the eight lighting devices, four image acquisition devices are used to respectively acquire images of the four target areas, thereby obtaining target images including each target area, thus laying a foundation for realizing brightness adjustment of all target areas.

[0075] Of course, in the implementation manner of the present application, only the example in which the number of lighting devices is 8 and the number of image acquisition devices is 4 is used for explanation, but the present application is not limited to this. In some other implementation manners, the number of lighting devices can also be 4, 12, 16, and so on; the number of image acquisition devices can also be more than 4, such as 8, and so on.

[0076] In some implementations, obtaining the brightness of a target area in a target image may specifically include: determining the region where the target area is located from the target image; calculating the average brightness of the region where the target area is located, and determining the average brightness as the brightness of the target area in the target image.

[0077] During implementation, a specific area can be determined from the acquisition area of ​​the image acquisition device, such as Figure 3 As shown, the specific area is the area where the target area is located in the target image. That is to say, when installing the image acquisition device, the shooting angle of the image acquisition device can be set so that when the image is acquired, the target area is just in the specific area of ​​the acquisition area. In this way, after obtaining the target image, the specific area can be directly determined as the area where the target area is located, and the brightness mean of the specific area can be calculated to obtain the brightness of the target area in the target image.

[0078] Specifically, the specific implementation method of calculating the brightness mean value of a specific area in the target image can refer to the existing related technology, which will not be repeated here.

[0079] In some embodiments, when adjusting the brightness of a lighting device based on the brightness difference, it can specifically include: if the brightness difference is greater than 0, then based on a preset adjustment coefficient and the brightness difference, lowering the brightness of the lighting device; if the brightness difference is less than 0, then based on the preset adjustment coefficient and the brightness difference, increasing the brightness of the lighting device.

[0080] If the brightness difference is greater than 0, it means that the brightness of the current target area is greater than the target brightness. The target image may be overexposed and the brightness of the target area needs to be lowered.

[0081] If the brightness difference is less than 0, it means that the brightness of the current target area is less than the target brightness. The target image may be underexposed and the brightness of the target area needs to be increased.

[0082] Specifically, a preset adjustment coefficient may be pre-set so that the brightness difference multiplied by the preset adjustment coefficient is equal to the actual brightness difference. For example, in the target image, the brightness of the target area is X, the actual brightness of the target area is Y, and the preset adjustment coefficient is α, then α*X=Y. Similarly, in the target image, the brightness difference between the brightness of the target area and the target brightness is M, then the brightness difference between the actual brightness of the target area and the actual target brightness is N=α*M.

[0083] In the application, the specific value of the preset adjustment coefficient can be set according to the actual situation and is not specifically limited here.

[0084] In this way, when the brightness difference is greater than 0, the actual adjustment value can be determined according to the product of the preset adjustment coefficient and the brightness difference, so that the actual adjustment value obtained is used as a decrement to reduce the brightness of the lighting equipment, so that the brightness of the target area is at the optimal brightness, avoiding overexposure or underexposure of the target image, and providing a guarantee for improving the accuracy of position recognition.

[0085] In some implementations, before acquiring the target image, the brightness adjustment method may further include: detecting whether the height of the sling is less than a preset height; if the height of the sling is less than the preset height, continuing to execute the step of acquiring the target image.

[0086] Specifically, when the yard crane performs container grabbing or lowering operations, it is necessary to detect the grabbing position / lowering position. By collecting images of the grabbing position / lowering position, position recognition can be performed to ensure the accuracy of grabbing / lowering. Accordingly, in the process of the spreader grabbing or lowering the container, a preset height can be set. The preset height represents the height for starting position recognition. In order to obtain a clear target image, the brightness of the target area needs to be detected and adjusted. Therefore, if the height of the spreader is monitored to be less than the preset height, it means that the identification of the lowering position / grabbing position can be started at present, and the target image can be obtained to detect and adjust the brightness of the target area so that the brightness of the target area is at the optimal brightness, thereby making the target area in the target image have clearer detail features, laying the foundation for accurate identification of position information.

[0087] As another optional implementation of the contents disclosed in the present application, an embodiment of the present application further provides a brightness adjustment device, which can be applied to a field bridge, wherein a lighting device is provided on the hoisting device of the field bridge, and the lighting device provides lighting for a target area; the brightness adjustment device may include: an acquisition module, for acquiring a target image; the target image is an image including a target area; an acquisition and determination module, for acquiring the brightness of the target area in the target image, and determining the brightness difference between the brightness and the target brightness; a judgment module, for judging whether the absolute value of the brightness difference is greater than a preset threshold; an adjustment module, for adjusting the brightness of the lighting device based on the brightness difference if the absolute value of the brightness difference is greater than the preset threshold.

[0088] Optionally, the adjustment module may also be configured to: if the absolute value of the brightness difference is less than or equal to a preset threshold, maintain the brightness of the lighting device.

[0089] Optionally, an image acquisition device is also provided on the lifting device of the field bridge; accordingly, the acquisition module can be used to: based on the image acquisition device, perform image acquisition on the target area to obtain the target image.

[0090] Optionally, the field bridge includes 8 lighting devices and 4 image acquisition devices; the four corner ends of the spreader correspond to 4 target areas; the target areas include areas corresponding to the corner ends of the container to be grabbed that are far from the ground, or areas corresponding to the corner ends of the container to be lowered that are close to the ground; the four image acquisition devices are respectively arranged at the four corner ends of the spreader, and each corner end is provided with 2 lighting devices; the distance between the two lighting devices located at the same corner end in the horizontal direction is greater than a preset distance; accordingly, the acquisition module can be specifically used for: under the illumination of the lighting device, the image acquisition device located at the same corner end performs image acquisition on the corresponding target area to obtain a target image.

[0091] Optionally, when acquiring the brightness of the target area in the target image, the acquisition and determination module can be specifically used to: determine the area where the target area is located from the target image; calculate the brightness mean of the area where the target area is located, and determine the brightness mean as the brightness of the target area in the target image.

[0092] Optionally, when adjusting the brightness of the lighting device based on the brightness difference, the adjustment module can be specifically used to: if the brightness difference is greater than 0, lower the brightness of the lighting device based on the preset adjustment coefficient and the brightness difference; if the brightness difference is less than 0, increase the brightness of the lighting device based on the preset adjustment coefficient and the brightness difference.

[0093] Optionally, the brightness adjustment device may further include a detection module, which may be specifically used to: detect whether the height of the sling is less than a preset height; if the height of the sling is less than the preset height, continue to execute the step of acquiring the target image.

[0094] The specific implementation of the brightness adjustment device provided in the embodiment of the present application can refer to the implementation of the brightness adjustment method described in any of the above embodiments, which will not be repeated here.

[0095] As another optional implementation of the content disclosed in this application, an embodiment of this application further provides an electronic device, such as Figure 4 As shown, the electronic device may include: a memory 401 and a processor 402; wherein the memory 401 is connected to the processor 402 and is used to store programs; the processor 402 is used to implement the brightness adjustment method disclosed in any of the above embodiments by running the program stored in the memory 401.

[0096] Specifically, the electronic device may further include: a bus, a communication interface 403 , an input device 404 and an output device 405 .

[0097] The processor 402, the memory 401, the communication interface 403, the input device 404 and the output device 405 are connected to each other via a bus.

[0098] A bus may include a pathway that transfers information between components of a computer system.

[0099] Processor 402 may be a general-purpose processor, such as a general-purpose central processing unit (CPU), a microprocessor, etc., or an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application. It may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0100] The processor 402 may include a main processor, and may also include a baseband chip, a modem, and the like.

[0101] The memory 401 stores a program for executing the technical solution of the present application, and may also store an operating system and other key services. Specifically, the program may include a program code, and the program code includes computer operation instructions. More specifically, the memory 401 may include a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a random access memory (RAM), other types of dynamic storage devices that can store information and instructions, a disk storage, a flash, and the like.

[0102] The input device 404 may include a device for receiving data and information input by a user, such as a keyboard, a mouse, a camera, a scanner, a light pen, a voice input device, a touch screen, a pedometer, or a gravity sensor.

[0103] Output device 405 may include a device that allows information to be output to a user, such as a display screen, a printer, a speaker, etc.

[0104] The communication interface 403 may include any transceiver or the like to communicate with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.

[0105] The processor 402 executes the program stored in the memory 401 and calls other devices, which can be used to implement each step of the brightness adjustment method provided in the above-mentioned embodiment of the present application.

[0106] An embodiment of the present application further provides a field bridge, which includes the electronic device as described in any of the above embodiments.

[0107] Among them, lighting equipment is installed on the hoisting device of the field crane, and the lighting equipment provides lighting for the target area.

[0108] In some implementations, an image acquisition device is also provided on the lifting device of the field crane.

[0109] Specifically, the field bridge may include 8 lighting devices and 4 image acquisition devices; the 4 image acquisition devices are respectively arranged at the 4 corner ends of the sling, and each corner end is provided with 2 lighting devices; the distance between the 2 lighting devices located at the same corner end in the horizontal direction is greater than the preset distance.

[0110] Based on the brightness provided by the eight lighting devices, four image acquisition devices are used to respectively acquire images of the four target areas, thereby obtaining target images including each target area, thus laying a foundation for realizing brightness adjustment of all target areas.

[0111] An embodiment of the present application further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a computer, the computer executes the brightness adjustment method in any of the above embodiments.

[0112] An embodiment of the present application further provides a computer program product comprising instructions, which, when executed by a computer, enables the computer to execute the brightness adjustment method described in any of the above embodiments.

[0113] It should be understood that the specific examples herein are only intended to help those skilled in the art to better understand the embodiments of the present specification, rather than to limit the scope of the present invention.

[0114] It can be understood that in the various implementations of this specification, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the implementation methods of this specification.

[0115] It can be understood that the various embodiments described in this specification can be implemented individually or in combination, and the embodiments of this specification are not limited to this.

[0116] Unless otherwise specified, all technical and scientific terms used in the embodiments of this specification have the same meaning as those generally understood by those skilled in the art of the technical field of this specification. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the scope of this specification. The term "and / or" used in this specification includes any and all combinations of one or more related listed items. The singular forms of "a", "above", and "the" used in the embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0117] It can be understood that the processor of the embodiment of this specification can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method implementation can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiment of this specification can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of this specification can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0118] It is understood that the memory in the embodiments of this specification may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (programmable ROM, PROM), an erasable programmable read-only memory (erasablePROM, EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory. The volatile memory may be a random access memory (RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0119] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this specification.

[0120] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method implementation methods and will not be repeated here.

[0121] In the several embodiments provided in this specification, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device implementation described above is only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0122] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0123] In addition, each functional unit in each embodiment of the present specification may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0124] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this specification, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of this specification. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

[0125] The above is only a specific implementation of this specification, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in this specification, which should be included in the protection scope of this specification. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A brightness adjustment method, characterized in that: Applied to a field bridge, a lighting device is provided on the hanger of the field bridge, and the lighting device provides lighting for a target area; the method comprises: Acquire a target image; the target image is an image including the target area; Acquire the brightness of the target area in the target image, and determine the brightness difference between the brightness and the target brightness; Determining whether the absolute value of the brightness difference is greater than a preset threshold; If the absolute value of the brightness difference is greater than a preset threshold, the brightness of the lighting device is adjusted based on the brightness difference.

2. The method according to claim 1, characterized in that Also includes: If the absolute value of the brightness difference is less than or equal to a preset threshold, the brightness of the lighting device is maintained.

3. The method according to claim 1, characterized in that An image acquisition device is also provided on the lifting device of the field bridge; The acquiring of the target image comprises: Based on the image acquisition device, the target area is imaged to obtain the target image.

4. The method according to claim 1, characterized in that The field bridge includes 8 lighting devices and 4 image acquisition devices; the 4 corner ends of the spreader correspond to 4 target areas; the target areas include the areas corresponding to the corner ends of the container to be grabbed and far from the ground, or the areas corresponding to the corner ends of the container to be lowered and close to the ground; The four image acquisition devices are respectively arranged at the four corner ends of the sling, and each corner end is provided with two lighting devices; The distance between the two lighting devices located at the same corner end in the horizontal direction is greater than the preset distance; The step of performing image acquisition on the corresponding target area based on the image acquisition device to obtain the target image includes: Under the illumination of the illumination device, the image acquisition device located at the same corner end acquires the image of the corresponding target area to obtain the target image.

5. The method according to claim 1, characterized in that The obtaining the brightness of the target area in the target image includes: Determine the region where the target region is located from the target image; The brightness mean of the region where the target region is located is calculated, and the brightness mean is determined as the brightness of the target region in the target image.

6. The method according to claim 1, characterized in that The step of adjusting the brightness of the lighting device based on the brightness difference comprises: If the brightness difference is greater than 0, then based on a preset adjustment coefficient and the brightness difference, lowering the brightness of the lighting device; If the brightness difference is less than 0, the brightness of the lighting device is increased based on a preset adjustment coefficient and the brightness difference.

7. The method according to claim 1, characterized in that Before acquiring the target image, the method further includes: Detecting whether the height of the spreader is less than a preset height; If the height of the sling is less than the preset height, the step of acquiring the target image is continued.

8. An electronic device, characterized in that: include: A processor, and a memory connected to the processor; The memory is used to store computer programs; The processor is used to call and execute the computer program in the memory to perform the brightness adjustment method according to any one of claims 1 to 7.

9. A field bridge, characterized in that: comprising the electronic device as claimed in claim 8; Wherein, a lighting device is arranged on the hoisting device of the field bridge, and the lighting device provides lighting for the target area.

10. The field bridge according to claim 9, characterized in that: It comprises 8 lighting devices and 4 image acquisition devices; the 4 image acquisition devices are respectively arranged at the 4 corner ends of the sling, and each corner end is provided with 2 lighting devices; The distance between the two lighting devices located at the same corner end in the horizontal direction is greater than a preset distance.

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