Intelligent energy-saving guide sign control system based on solar power supply and related equipment
By introducing solar power supply and intelligent control modules into the guide identification control system, and using the camera unit to collect image information for feature extraction and adjustment, the problems of energy waste and inaccurate information expression of traditional guide identification equipment are solved, and more efficient and accurate guide identification control is achieved.
Patent Information
- Application Number
- CN202411772824.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-03-14
AI Technical Summary
Traditional guide marking equipment continues to supply power when there is no user, resulting in waste of energy; its control system cannot accurately control information transmission, resulting in inaccurate information expression and inability to meet user needs.
An intelligent energy-saving guide and identification control system based on solar power supply is designed, which includes a solar module, an information acquisition module, an information processing module, a control module and a guide and identification module. Image information is collected by the camera unit, feature extraction operations are performed, and the brightness and color of the guide logo are adjusted according to the environmental brightness and flow characteristic information.
The energy consumption of guide signs is reduced, the accuracy and stability of guide sign control is improved, and the user experience is improved.
Smart Images
Figure CN119625445A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of guide sign control, and in particular to an intelligent energy-saving guide sign control system based on solar power supply and related equipment. Background Art
[0002] Under existing technologies, traditional signage equipment is generally powered directly by electricity, which means that they are continuously powered regardless of whether or not there are users who need to use these devices. This uninterrupted power supply method results in a large amount of energy waste, especially at night or during off-peak hours, when the frequency of use of signage is greatly reduced, and the energy waste is particularly significant. Secondly, traditional signage control systems are often unable to accurately control the transmission of information, resulting in inaccurate information expression and failure to meet the specific needs of users. Especially when tourists are faced with a large amount of information, it is difficult to quickly and accurately obtain the required information, resulting in a poor experience. Therefore, how to reduce the energy consumption of signage, achieve a more accurate and stable signage control system, and improve the user experience has become a technical problem that needs to be solved urgently. Summary of the invention
[0003] The main purpose of this application is to provide an intelligent energy-saving guide sign control system and related equipment based on solar power supply, aiming to reduce the energy consumption of guide signs.
[0004] In a first aspect, the present application provides an intelligent energy-saving guide sign control system based on solar power supply, comprising: Solar module, information collection module, information processing module, control module, guide identification module; The solar module is connected to the guide identification module to provide electrical energy to the guide identification module; The information acquisition module includes a camera unit, and the camera unit is used to acquire image information; The information processing module is connected to the information acquisition module and is used to perform a feature extraction operation on the image information to obtain feature information corresponding to the image information; The control module is connected to the information processing module and is used to issue control instructions according to the characteristic information; The guidance identification module is connected to the control module and is used to adjust the guidance identification information in the guidance identification module according to the control instruction.
[0005] In some embodiments, the solar-powered intelligent energy-saving guide sign control system further includes a brightness measurement module, which is used to obtain the ambient brightness of the environment in which the guide sign module is located; the information processing module performs a feature extraction operation on the image information to obtain feature information corresponding to the image information, and is used to: Performing a first feature extraction operation on the image information based on the ambient brightness to obtain brightness feature information corresponding to the image information; A second feature extraction operation is performed on the image information to obtain pedestrian flow feature information corresponding to the image information.
[0006] In some embodiments, performing a first feature extraction operation on the image information based on the ambient brightness to obtain brightness feature information corresponding to the image information includes: Converting the image information into grayscale image information, and extracting the pixel grayscale value of each pixel of the grayscale image information; Determine the number of highlighted pixels in the image information according to the preset grayscale threshold corresponding to the pixel grayscale value and the ambient brightness, and determine the brightness feature information according to the number of pixels; The preset grayscale threshold is determined based on the following formula: represents the preset threshold value, represents the ambient brightness, is the preset ambient brightness threshold, is the maximum value of the preset grayscale threshold.
[0007] In some embodiments, performing a second feature extraction operation on the image information to obtain pedestrian flow feature information corresponding to the image information includes: Acquire background human body information corresponding to the image information, and perform human body recognition on the image information to obtain human body quantity information; The human body quantity information is eliminated according to the background human body information to obtain the foreground human body information corresponding to the image information as the human flow characteristic information.
[0008] In some embodiments, the obtaining of background human body information corresponding to the image information includes: Extracting historical image information from the image information collected by the camera unit based on a preset image extraction rule; Performing background extraction on the historical image information to obtain background image information; Performing human body detection on the background image information to obtain the background human body information.
[0009] In some embodiments, the control module, in the process of issuing a control instruction according to the characteristic information, is used to: Brightness adjustment information and / or color adjustment information is sent to the guide identification module according to the characteristic information.
[0010] In some embodiments, the sending brightness adjustment information and / or color adjustment information to the guide identification module according to the characteristic information includes: Based on a preset mapping relationship between characteristic information and target brightness, determining the target brightness of the guide sign module according to the characteristic information, and issuing the brightness adjustment information based on the target brightness, wherein the target brightness is positively correlated with the brightness characteristic information and / or the pedestrian flow characteristic information; Based on a preset mapping relationship between characteristic information and target color, the target color of the guide sign module is determined according to the characteristic information, and the color adjustment information is issued based on the target color, wherein the size of the G component in the RGB value of the target color is positively correlated with the characteristic information of human flow.
[0011] In some embodiments, issuing a control instruction according to the characteristic information includes: Inputting the input signal into the forward path of the control module to obtain a direct transfer function corresponding to the input signal; Inputting the input signal into the feedback path of the control module to obtain a feedback transfer function corresponding to the input signal; Based on the direct transfer function and the feedback transfer function, obtaining an output signal output by the control module; The control instruction is sent to the guidance identification module according to the output signal.
[0012] In some embodiments, the expression corresponding to the control module is: Where s represents the input signal, represents the direct transfer function, represents the feedback transfer function, represents the output signal.
[0013] In a second aspect, the present application also provides an intelligent energy-saving guide sign based on solar power supply, including: a processor, a memory, and an intelligent energy-saving guide sign control system based on solar power supply as described in any one of the embodiments of the present application.
[0014] The present application provides an intelligent energy-saving sign control system and related equipment based on solar power supply. The present application connects the sign module with the sign module through the solar module to provide power to the sign module; the information acquisition module includes a camera unit, and the camera unit is used to collect image information; the information processing module is connected to the information acquisition module, and is used to perform feature extraction operations on the image information to obtain feature information corresponding to the image information; the control module is connected to the information processing module, and is used to issue control instructions according to the feature information; the sign module is connected to the control module, and is used to adjust the sign information in the sign module according to the control instructions. Since the sign module is adjusted according to the image information collected by the camera unit, the sign module can change display parameters such as brightness according to external environmental information such as human flow and ambient brightness, thereby improving the flexibility of the sign module and reducing power consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are 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.
[0016] Figure 1 A schematic block diagram of an intelligent energy-saving guide sign control system based on solar power supply provided in one embodiment of the present application. DETAILED DESCRIPTION
[0017] 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 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.
[0018] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.
[0019] The embodiments of the present application provide an intelligent energy-saving guide sign control system and related equipment based on solar power supply.
[0020] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0021] Please refer to Figure 1 , Figure 1 A schematic block diagram of an intelligent energy-saving guide sign control system based on solar power supply provided in one embodiment of the present application.
[0022] like Figure 1 As shown, the solar-powered intelligent energy-saving sign control system 100 provided in the embodiment of the present application includes: a solar module 101, an information collection module 102, an information processing module 103, a control module 104, and a sign module 105; The solar module 101 is connected to the guide identification module 105 to provide electric energy to the guide identification module 105; The information acquisition module 102 includes a camera unit, which is used to acquire image information; The information processing module 103 is connected to the information acquisition module 102 and is used to perform a feature extraction operation on the image information to obtain feature information corresponding to the image information; The control module 104 is connected to the information processing module 103 and is used to issue control instructions according to the characteristic information; The guidance identification module 105 is connected to the control module 104 and is used to adjust the guidance identification information in the guidance identification module 105 according to the control instruction.
[0023] For example, the guide sign module is used to guide and direct people's direction and position in a specific environment. It is widely used in indoor and outdoor public places such as shopping centers, malls, hotels, parks, etc., to display maps, signs, directional markers, etc., to help people find their way in different environments. In order to improve the conspicuousness of the guide sign, the guide sign module can be connected to a solar module, and the solar module is used to power the guide sign module, so that the guide sign module has a light-emitting function, thereby enhancing the function of visual recognition.
[0024] The sign module in the related art usually emits light continuously with a fixed brightness and color. When the sunlight is strong, the solar module can provide sufficient power for the sign module. However, in this case, due to the sufficient sunlight, the user can clearly identify the sign even if it does not emit light. On the contrary, when the sunlight is weak, the sign module needs to emit light to increase its conspicuity in a low-brightness environment. However, the power of the solar module is not enough to support the light emission of the sign module. The unreasonable power configuration causes a waste of power.
[0025] In order to solve this problem and improve the flexibility of the guide sign control and the rationality of the power configuration, the intelligent energy-saving guide sign control system based on solar power supply provided in the embodiment of the present application can adjust the display parameters of the guide sign module according to the image information collected by the camera unit, so that the guide sign module can adapt to actual needs.
[0026] In some embodiments, the solar-powered intelligent energy-saving guide sign control system further includes a brightness measurement module, which is used to obtain the ambient brightness of the environment in which the guide sign module is located; the information processing module performs a feature extraction operation on the image information to obtain feature information corresponding to the image information, and is used to: Performing a first feature extraction operation on the image information based on the ambient brightness to obtain brightness feature information corresponding to the image information; A second feature extraction operation is performed on the image information to obtain pedestrian flow feature information corresponding to the image information.
[0027] Exemplarily, the identification function of the guide identification module is related to the brightness of the outside world. When the outside brightness is high, the user may easily observe the guide identification with the help of an external light source, while when the outside brightness is low, the guide identification module itself may need to emit light to facilitate user identification. A brightness measurement module can be set on the solar-powered intelligent energy-saving guide identification control system to obtain the ambient brightness. Since the brightness measurement module is set close to the guide identification module, the ambient brightness obtained by the brightness measurement module is actually the brightness of the position adjacent to the guide identification module. The ambient light detected by the brightness measurement module not only cannot provide assistance for the user to identify the guide identification module, but may also cause obstruction and interference to the guide identification module. What provides assistance for the user to identify the guide identification module is the brightness of the light source on the same side as the user. Therefore, it is necessary to extract brightness feature information from the image information facing the user.
[0028] It is understandable that in this scenario, the ambient brightness is equivalent to the brightness of the fill light when shooting image information. The greater the ambient brightness, the greater the fill light effect on the image information. Conversely, the smaller the ambient brightness, the smaller the fill light effect on the image information. Therefore, when performing the first feature extraction operation to extract brightness feature information from the image information, it is necessary to combine the ambient brightness.
[0029] Exemplarily, the identification function of the guide sign module is also related to the flow of people. The greater the flow of people, the narrower the user's field of vision. It is necessary to increase the brightness of the guide sign module to make it easier for users to find the guide sign module, increase the evacuation speed of the flow of people, and avoid congestion.
[0030] In some implementations, performing a first feature extraction operation on the image information based on the ambient brightness to obtain brightness feature information corresponding to the image information includes: Converting the image information into grayscale image information, and extracting the pixel grayscale value of each pixel of the grayscale image information; Determine the number of highlighted pixels in the image information according to the preset grayscale threshold corresponding to the pixel grayscale value and the ambient brightness, and determine the brightness feature information according to the number of pixels; The preset grayscale threshold is determined based on the following formula: represents the preset threshold value, represents the ambient brightness, is the preset ambient brightness threshold, is the maximum value of the preset grayscale threshold.
[0031] Exemplarily, the brightness of the image information can be determined based on the pixel grayscale value of each pixel in the grayscale image information obtained by converting the image information. It can be understood that the range of the pixel grayscale value is usually from 0 to 255, where 0 represents black (darkest) and 255 represents white (brightest). Therefore, the higher the grayscale value, the brighter the pixel. Therefore, the more pixels whose pixel grayscale value is greater than the preset grayscale threshold, the higher the brightness of the image information. Among them, the setting of the preset grayscale threshold is crucial.
[0032] Since the ambient brightness serves as fill-in light for the brightness of the image information, the higher the ambient brightness, the stronger the fill-in light effect of the ambient brightness. The actual brightness of the image information may not be as high as reflected in the image information. In this case, a higher preset grayscale threshold needs to be set; conversely, the lower the ambient brightness, the weaker the fill-in light effect of the ambient brightness, and the size of the preset grayscale threshold can be relatively reduced.
[0033] For example, according to Determine the preset grayscale threshold T. If the ambient brightness lux is greater than the preset ambient brightness threshold lux_max, it means that the ambient brightness is relatively large. The preset grayscale threshold is directly set to the maximum value T_max of the preset grayscale threshold. When the ambient brightness lux is not greater than the preset ambient brightness threshold lux_max, the preset grayscale threshold T is positively correlated with the ambient brightness lux. The constant 10.2 represents the sensitivity of the preset grayscale threshold T to the ambient brightness lux, and 28.5 is the minimum value of the preset grayscale threshold T. The logarithmic function is used to compress a very large ambient brightness range into a smaller range.
[0034] In some implementations, performing a second feature extraction operation on the image information to obtain pedestrian flow feature information corresponding to the image information includes: Acquire background human body information corresponding to the image information, and perform human body recognition on the image information to obtain human body quantity information; The human body quantity information is eliminated according to the background human body information to obtain the foreground human body information corresponding to the image information as the human flow characteristic information.
[0035] Exemplarily, human body recognition is performed on image information to determine the flow of people in the image information. Different from the human body recognition algorithm in the related art, the human body recognition in the embodiment of the present application only needs to count the number of human bodies in the image information, and does not need to re-identify pedestrians, thereby reducing the computational complexity of human body recognition.
[0036] However, in indoor and outdoor scenes where guide sign modules are commonly used, human bodies may also appear in the background, such as plastic models, advertising decorations containing human portraits, etc. Therefore, it is necessary to eliminate the interference of this part of background human body information on the pedestrian flow characteristic information and subtract the background human body information from the human body quantity information to obtain the pedestrian flow characteristic information.
[0037] In some implementations, obtaining background human body information corresponding to the image information includes: Extracting historical image information from the image information collected by the camera unit based on a preset image extraction rule; Performing background extraction on the historical image information to obtain background image information; Performing human body detection on the background image information to obtain the background human body information.
[0038] For example, in order to remove background human body information from human body quantity information, the background human body information needs to be obtained first. It can be understood that the background human body information is a human body that is still and has basically the same posture in multiple frames of historical image information. In order to avoid identifying pedestrians waiting or resting in historical image information as background human bodies, it is necessary to extract as many historical image information taken at different times as possible.
[0039] Specifically, 6 frames are randomly selected from the image information captured every hour to obtain a set of 24*6 frames of image information as historical image information. Of course, this is not limited to this, and historical image information can also be extracted from image information based on other time periods and quantities, which is not limited here.
[0040] Exemplarily, the unchanged part of multiple frames of historical image information is extracted as background image information, and then human body detection is performed on the background image information to obtain background human body information in the background image information. This part of the background human body information may be human body information corresponding to plastic models, advertising signs, etc.
[0041] In some implementations, the control module, in the process of issuing a control instruction according to the characteristic information, is used to: Brightness adjustment information and / or color adjustment information is sent to the guide identification module according to the characteristic information.
[0042] Exemplarily, the prominence of the guide sign module is related to the brightness. When the prominence of the guide sign module needs to be improved, brightness adjustment information is issued to increase the brightness of the guide sign module; conversely, when the prominence of the guide sign module does not need to be improved, brightness adjustment information can be issued to appropriately reduce the brightness of the guide sign module.
[0043] Exemplarily, the prominence of the guide sign module is also related to the color of its backlight. The human eye is more sensitive to some colors than others. When it is necessary to increase the prominence of the guide sign module, color adjustment information can be sent to adjust the backlight of the guide sign module to a color that the human eye is more sensitive to. Conversely, when it is not necessary to increase the prominence of the guide sign module, the guide sign module can be displayed in a pre-set color to improve the coordination between the guide sign module and the surrounding environment.
[0044] Exemplarily, in some cases, the brightness and color of the guide sign module may be adjusted simultaneously to maximize the brightness of the guide sign module.
[0045] In some implementations, the sending brightness adjustment information and / or color adjustment information to the guide identification module according to the characteristic information includes: Based on a preset mapping relationship between characteristic information and target brightness, determining the target brightness of the guide sign module according to the characteristic information, and issuing the brightness adjustment information based on the target brightness, wherein the target brightness is negatively correlated with the brightness characteristic information and / or positively correlated with the pedestrian flow characteristic information; Based on a preset mapping relationship between characteristic information and target color, the target color of the guide sign module is determined according to the characteristic information, and the color adjustment information is issued based on the target color, wherein the size of the G component in the RGB value of the target color is positively correlated with the characteristic information of human flow.
[0046] For example, when the external brightness characteristic information is high, the user can easily identify the guide sign module with the assistance of the external light source. At this time, the target brightness of the guide sign module can be lowered, so the target brightness is negatively correlated with the brightness characteristic information; correspondingly, the larger the flow of people, the narrower the user's field of view, and the brightness of the guide sign module needs to be increased to make it easier for users to find the guide sign module, increase the evacuation speed of the flow of people, and avoid congestion. At this time, the target brightness of the guide sign module can be increased, so the target brightness is positively correlated with the flow of people characteristic information.
[0047] For example, since the human eye is most sensitive to the green component in the RGB value, when the flow of people is large and the prominence of the guide sign module needs to be increased, the G component in the RGB value of the target color of the guide sign module can be increased. Therefore, the size of the G component in the RGB value of the target color is positively correlated with the characteristic information of the flow of people.
[0048] In some implementations, issuing a control instruction according to the characteristic information includes: Inputting the input signal into the forward path of the control module to obtain a direct transfer function corresponding to the input signal; Inputting the input signal into the feedback path of the control module to obtain a feedback transfer function corresponding to the input signal; Based on the direct transfer function and the feedback transfer function, obtaining an output signal output by the control module; The control instruction is sent to the guidance identification module according to the output signal.
[0049] Exemplarily, the direct transfer function is used for open-loop transfer, that is, the transfer function from input to output of the control module when there is no feedback; the feedback transfer function is used for closed-loop transfer, taking into account the feedback mechanism, so that the control module can be more robust to disturbances and parameter changes. Combining the direct transfer function and the direct transfer function for control helps to reduce errors and improve the stability and reliability of the system.
[0050] In some implementations, the expression corresponding to the control module is: Where s represents the input signal, represents the direct transfer function, represents the feedback transfer function, represents the output signal.
[0051] Exemplarily, the formula of the transfer function reduces the error of the system by introducing a feedback mechanism. The control module in the control method of the intelligent energy-saving guide sign control system can dynamically adjust the variables of the direct transfer function and / or the feedback transfer function, and adjust the variables of the direct transfer function and / or the feedback transfer function in the control module to the best, so that the output signal output by the control module sends the accurate control instruction to the guide sign module, so that the intelligent energy-saving guide sign control system performs the corresponding display operation according to the control instruction issued by the control module, accurately reflects the user's needs, and improves the user's experience.
[0052] The present application provides an intelligent energy-saving sign control system based on solar power supply, wherein the solar module is connected to the sign module to provide electric energy to the sign module; the information acquisition module includes a camera unit, and the camera unit is used to acquire image information; the information processing module is connected to the information acquisition module to perform feature extraction operations on the image information to obtain feature information corresponding to the image information; the control module is connected to the information processing module to issue control instructions according to the feature information; the sign module is connected to the control module to adjust the sign information in the sign module according to the control instructions. Since the sign module is adjusted according to the image information acquired by the camera unit, the sign module can change display parameters such as brightness according to external environmental information such as human flow and ambient brightness, thereby improving the flexibility of the sign module and reducing power consumption.
[0053] The embodiment of the present application also provides an intelligent energy-saving guide sign based on solar power supply, which is characterized by comprising: a processor, a memory, and an intelligent energy-saving guide sign control system based on solar power supply as described in any one of the embodiments of the present application.
[0054] In one embodiment, the processor is used to run a computer program stored in the memory to implement the following steps: Performing a first feature extraction operation on the image information based on the ambient brightness to obtain brightness feature information corresponding to the image information; A second feature extraction operation is performed on the image information to obtain pedestrian flow feature information corresponding to the image information.
[0055] In one embodiment, the processor is used to run a computer program stored in the memory to implement the following steps: Converting the image information into grayscale image information, and extracting the pixel grayscale value of each pixel of the grayscale image information; Determine the number of highlighted pixels in the image information according to the preset grayscale threshold corresponding to the pixel grayscale value and the ambient brightness, and determine the brightness feature information according to the number of pixels; The preset grayscale threshold is determined based on the following formula: represents the preset threshold value, represents the ambient brightness, is the preset ambient brightness threshold, is the maximum value of the preset grayscale threshold.
[0056] In one embodiment, the processor is used to run a computer program stored in the memory to implement the following steps: Acquire background human body information corresponding to the image information, and perform human body recognition on the image information to obtain human body quantity information; The human body quantity information is eliminated according to the background human body information to obtain the foreground human body information corresponding to the image information as the human flow characteristic information.
[0057] In one embodiment, the processor is used to run a computer program stored in the memory to implement the following steps: Extracting historical image information from the image information collected by the camera unit based on a preset image extraction rule; Performing background extraction on the historical image information to obtain background image information; Performing human body detection on the background image information to obtain the background human body information.
[0058] In one embodiment, the processor is used to run a computer program stored in the memory to implement the following steps: Brightness adjustment information and / or color adjustment information is sent to the guide identification module according to the characteristic information.
[0059] In one embodiment, the processor is used to run a computer program stored in the memory to implement the following steps: Based on a preset mapping relationship between characteristic information and target brightness, determining the target brightness of the guide sign module according to the characteristic information, and issuing the brightness adjustment information based on the target brightness, wherein the target brightness is negatively correlated with the brightness characteristic information and / or positively correlated with the pedestrian flow characteristic information; Based on a preset mapping relationship between characteristic information and target color, the target color of the guide sign module is determined according to the characteristic information, and the color adjustment information is issued based on the target color, wherein the size of the G component in the RGB value of the target color is positively correlated with the characteristic information of human flow.
[0060] In one embodiment, the processor is used to run a computer program stored in the memory to implement the following steps: Inputting the input signal into the forward path of the control module to obtain a direct transfer function corresponding to the input signal; Inputting the input signal into the feedback path of the control module to obtain a feedback transfer function corresponding to the input signal; Based on the direct transfer function and the feedback transfer function, obtaining an output signal output by the control module; The control instruction is sent to the guidance identification module according to the output signal.
[0061] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In a hardware embodiment, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or transient medium). As is known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those skilled in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.
[0062] It should be understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, including these combinations. It should be noted that, in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "including a..." does not exclude the presence of other identical elements in the process, method, article or system including the element.
[0063] The serial numbers of the embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments. The above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.
Claims
1. An intelligent energy-saving sign control system based on solar power supply, characterized in that: include: Solar module, information collection module, information processing module, control module, guide identification module; The solar module is connected to the guide identification module to provide electrical energy to the guide identification module; The information acquisition module includes a camera unit, and the camera unit is used to acquire image information; The information processing module is connected to the information acquisition module and is used to perform a feature extraction operation on the image information to obtain feature information corresponding to the image information; The control module is connected to the information processing module and is used to issue control instructions according to the characteristic information; The guidance identification module is connected to the control module and is used to adjust the guidance identification information in the guidance identification module according to the control instruction.
2. According to the solar-powered intelligent energy-saving sign control system of claim 1, it is characterized in that: The solar-powered intelligent energy-saving guide sign control system further includes a brightness measurement module, which is used to obtain the ambient brightness of the environment in which the guide sign module is located; the information processing module performs a feature extraction operation on the image information to obtain feature information corresponding to the image information, and is used to: Performing a first feature extraction operation on the image information based on the ambient brightness to obtain brightness feature information corresponding to the image information; A second feature extraction operation is performed on the image information to obtain pedestrian flow feature information corresponding to the image information.
3. The solar-powered intelligent energy-saving sign control system according to claim 2 is characterized in that: The performing a first feature extraction operation on the image information based on the ambient brightness to obtain brightness feature information corresponding to the image information includes: Converting the image information into grayscale image information, and extracting the pixel grayscale value of each pixel of the grayscale image information; Determine the number of highlighted pixels in the image information according to the preset grayscale threshold corresponding to the pixel grayscale value and the ambient brightness, and determine the brightness feature information according to the number of pixels; The preset grayscale threshold is determined based on the following formula: represents the preset threshold value, represents the ambient brightness, is the preset ambient brightness threshold, is the maximum value of the preset grayscale threshold.
4. According to the solar-powered intelligent energy-saving sign control system of claim 2, it is characterized in that: The performing a second feature extraction operation on the image information to obtain pedestrian flow feature information corresponding to the image information includes: Acquire background human body information corresponding to the image information, and perform human body recognition on the image information to obtain human body quantity information; The human body quantity information is eliminated according to the background human body information to obtain the foreground human body information corresponding to the image information as the human flow characteristic information.
5. The solar-powered intelligent energy-saving sign control system according to claim 4 is characterized in that: The obtaining of background human body information corresponding to the image information includes: Extracting historical image information from the image information collected by the camera unit based on a preset image extraction rule; Performing background extraction on the historical image information to obtain background image information; Performing human body detection on the background image information to obtain the background human body information.
6. The solar-powered intelligent energy-saving sign control system according to claim 1 is characterized in that: The control module, in the process of issuing a control instruction according to the characteristic information, is used to: Brightness adjustment information and / or color adjustment information is sent to the guide identification module according to the characteristic information.
7. The solar-powered intelligent energy-saving sign control system according to claim 6 is characterized in that: The sending brightness adjustment information and / or color adjustment information to the guide identification module according to the characteristic information includes: Based on a preset mapping relationship between characteristic information and target brightness, determining the target brightness of the guide sign module according to the characteristic information, and issuing the brightness adjustment information based on the target brightness, wherein the target brightness is negatively correlated with the brightness characteristic information and / or positively correlated with the pedestrian flow characteristic information; Based on a preset mapping relationship between characteristic information and target color, the target color of the guide sign module is determined according to the characteristic information, and the color adjustment information is issued based on the target color, wherein the size of the G component in the RGB value of the target color is positively correlated with the characteristic information of human flow.
8. The solar-powered intelligent energy-saving sign control system according to claim 1 is characterized in that: The issuing of a control instruction according to the characteristic information comprises: Inputting the input signal into the forward path of the control module to obtain a direct transfer function corresponding to the input signal; Inputting the input signal into the feedback path of the control module to obtain a feedback transfer function corresponding to the input signal; Based on the direct transfer function and the feedback transfer function, obtaining an output signal output by the control module; The control instruction is sent to the guidance identification module according to the output signal.
9. The solar-powered intelligent energy-saving sign control system according to claim 8 is characterized in that: The expression corresponding to the control module is: Where s represents the input signal, represents the direct transfer function, represents the feedback transfer function, represents the output signal.
10. An intelligent energy-saving sign based on solar power supply, characterized in that: include: A processor, a memory, and an intelligent energy-saving guide sign control system based on solar power supply as described in any one of claims 1 to 9.