Highway tunnel segmented dimming control method, device, equipment and medium

Abstract

The invention relates to a road tunnel segmented dimming control method, device and equipment and a medium, and the method comprises the steps: employing a preset tunnel dimming control model to determine the required brightness of a first tunnel entrance section and a tunnel middle section of a target road tunnel according to the vehicle speed and traffic flow of an arriving vehicle and the brightness outside a tunnel hole; respectively calculating and determining the required brightness of a second tunnel entrance section and the required brightness of a tunnel transition section according to the required brightness of the first tunnel entrance section, and respectively calculating and determining the required brightness of a first tunnel exit section and the required brightness of a second tunnel exit section by adopting the required brightness of the tunnel middle section; according to the required brightness of each tunnel segment, tunnel lamp power of each tunnel segment of the target highway tunnel is calculated and determined; and inputting the tunnel lamp power of each tunnel segment to a preset PID control model to control the tunnel lamp brightness of each tunnel segment in the target highway tunnel. The performance of the tunnel lighting system can be optimized, and energy consumption can be reduced.

Description

Technical Field

[0001] The present application relates to the field of dimming control, and particularly to a method for segmental dimming control of highway tunnels, a corresponding device, an electronic device, and a computer-readable storage medium. Background Art

[0002] With the rapid development of highway tunnels, the increase in tunnel lighting energy consumption has become a key issue. In recent years, scholars at home and abroad have carried out different discussions and researches on meeting the tunnel lighting brightness requirements, and proposed many relatively effective lighting optimization methods.

[0003] Previous highway tunnel lighting dimming methods maintain a constant lighting brightness throughout the day, or manually adjust the tunnel lighting brightness in different time periods. There are also dimming methods where the tunnel lights turn on when a vehicle enters and turn off when a vehicle exits. However, when the traffic flow, vehicle speed, and the brightness outside the tunnel are low, excessive lighting power may be generated by traditional highway tunnel lighting dimming methods. Since the traffic flow, vehicle speed, and the brightness outside the tunnel may vary in different seasons of the year and at different times of the day, the required brightness inside the tunnel also changes accordingly. However, the lighting facilities inside the tunnel operate at the highest required lighting level throughout the day and throughout the year, which will cause great energy waste in the context of global energy shortage.

[0004] In summary, in view of the problems in the prior art that the traffic flow, vehicle speed, and the brightness outside the tunnel vary in different seasons and at different times, while the lighting facilities inside the tunnel operate at the highest required lighting level throughout the day and throughout the year, resulting in great energy waste, the applicant has made corresponding explorations to solve this problem. Summary of the Invention

[0005] The purpose of the present application is to solve the above problems and provide a method for segmental dimming control of highway tunnels, a corresponding device, an electronic device, and a computer-readable storage medium.

[0006] To achieve the various purposes of the present application, the following technical solutions are adopted:

[0007] A method for segmental dimming control of highway tunnels proposed to meet one of the purposes of the present application includes:

[0008] In response to an instruction for segmental dimming control of a highway tunnel, obtaining the vehicle speed, traffic flow, and the brightness outside the tunnel of the arriving vehicles in the target highway tunnel, where the target highway tunnel is constructed by successively connecting a first tunnel entrance section, a second tunnel entrance section, a tunnel middle section, a tunnel transition section, a first tunnel exit section, and a second tunnel exit section;

[0009] Using a preset tunnel dimming control model, respectively determine the required brightness of the corresponding first tunnel entrance section and the tunnel middle section of the target highway tunnel according to the vehicle speed of the arriving vehicle, the traffic flow, and the brightness outside the tunnel entrance;

[0010] According to the required brightness of the first tunnel entrance section, respectively calculate and determine the required brightness of the second tunnel entrance section and the required brightness of the tunnel transition section, and use the required brightness of the tunnel middle section to calculate and determine the required brightness of the first tunnel exit section and the required brightness of the second tunnel exit section respectively;

[0011] According to the required brightness of the first tunnel entrance section, the second tunnel entrance section, the tunnel middle section, the tunnel transition section, the first tunnel exit section, and the second tunnel exit section, respectively calculate and determine the tunnel lamp power corresponding to each tunnel section of the target highway tunnel;

[0012] Input the tunnel lamp power corresponding to each tunnel section into a preset PID control model to control the tunnel lamp brightness of each tunnel section in the target highway tunnel, so as to complete the sectional dimming control of the target highway tunnel.

[0013] Optionally, the step of using a preset tunnel dimming control model to respectively determine the required brightness of the corresponding first tunnel entrance section and the tunnel middle section of the target highway tunnel according to the vehicle speed of the arriving vehicle, the traffic flow, and the brightness outside the tunnel entrance includes:

[0014] The expression for the required brightness of the first tunnel entrance section is:

[0015]

[0016] Where L th1 represents the required brightness of the first tunnel entrance section, N represents the traffic flow, V represents the vehicle speed of the arriving vehicle, and L 20 (S) represents the brightness outside the tunnel entrance.

[0017] Optionally, the step of using a preset tunnel dimming control model to respectively determine the required brightness of the corresponding first tunnel entrance section and the tunnel middle section of the target highway tunnel according to the vehicle speed of the arriving vehicle, the traffic flow, and the brightness outside the tunnel entrance includes:

[0018] The expression for the required brightness of the tunnel middle section is:

[0019]

[0020] Where L in represents the required brightness of the tunnel middle section.

[0021] Optionally, the steps of calculating and determining the required luminance of the second tunnel entrance section and the required luminance of the tunnel transition section according to the required luminance of the first tunnel entrance section include:

[0022] The expression for the required luminance of the second tunnel entrance section is:

[0023] L th2 = 0.5 × L th1 ,

[0024] where L th2 represents the required luminance of the second tunnel entrance section;

[0025] The expression for the required luminance of the tunnel transition section is:

[0026] L tr = 0.15 × L th1 ,

[0027] where L tr represents the required luminance of the tunnel transition section.

[0028] Optionally, the steps of calculating and determining the required luminance of the first tunnel exit section and the required luminance of the second tunnel exit section using the required luminance of the middle section of the tunnel include:

[0029] The expression for the required luminance of the first tunnel exit section is:

[0030] L ex1 = 3 × L in ,

[0031] where L ex1 represents the required luminance of the first tunnel exit section;

[0032] The expression for the required luminance of the second tunnel exit section is:

[0033] L ex2 = 5 × L in ,

[0034] where L ex2 represents the required luminance of the second tunnel exit section.

[0035] Optionally, the expression for the tunnel lamp power corresponding to each tunnel segment of the target highway tunnel includes:

[0036] E i = L i × θ,

[0037] where E i represents the illuminance value of the i-th section of the target highway tunnel, L iDenote the required luminance of the i-th section of the target highway tunnel as \(L\). i It includes the first tunnel entrance section, the second tunnel entrance section, the tunnel middle section, the tunnel transition section, the first tunnel exit section, and the second tunnel exit section. \(\theta\) represents the conversion coefficient between the road surface illuminance and the road surface luminance.

[0038]

[0039] Among them, \(\varPhi\) i Denotes the luminous flux of the lighting fixture that meets the required illuminance. \(\eta\) represents the utilization coefficient of the lighting fixture. \(N^*\) represents the layout coefficient of the lighting fixture. \(M^*\) represents the maintenance coefficient of the lighting fixture. \(W\) represents the road surface width of the target highway tunnel. \(S\) represents the layout spacing of the lighting fixtures.

[0040]

[0041] Among them, \(P\) i Denotes the lamp power of the i-th section of the target highway tunnel. \(b\) represents the luminous efficacy coefficient of the lighting fixture.

[0042] Optionally, the tunnel dimming control model is used to control the required luminance of the first tunnel entrance section and the required luminance of the tunnel middle section.

[0043] A highway tunnel sectional dimming control device provided to meet another object of the present application includes:

[0044] A data acquisition module, configured to respond to an instruction for sectional dimming control of a highway tunnel, and acquire the vehicle speed, traffic flow, and tunnel outside brightness of the arriving vehicles in the target highway tunnel. Among them, the target highway tunnel is constructed by sequentially connecting the first tunnel entrance section, the second tunnel entrance section, the tunnel middle section, the tunnel transition section, the first tunnel exit section, and the second tunnel exit section.

[0045] A first required luminance calculation module, configured to use a preset tunnel dimming control model to respectively determine the required luminance of the corresponding first tunnel entrance section and tunnel middle section of the target highway tunnel according to the vehicle speed, traffic flow, and tunnel outside brightness of the arriving vehicles.

[0046] A second required luminance calculation module, configured to respectively calculate and determine the required luminance of the second tunnel entrance section and the required luminance of the tunnel transition section according to the required luminance of the first tunnel entrance section, and respectively calculate and determine the required luminance of the first tunnel exit section and the required luminance of the second tunnel exit section by using the required luminance of the tunnel middle section.

[0047] The tunnel light power calculation module is configured to calculate and determine the tunnel light power corresponding to each tunnel section of the target highway tunnel according to the required brightness of the first tunnel entrance section, the second tunnel entrance section, the tunnel middle section, the tunnel transition section, the first tunnel exit section, and the second tunnel exit section respectively;

[0048] The segmented dimming control module is configured to input the tunnel light power corresponding to each tunnel section into a preset PID control model to control the tunnel light brightness of each tunnel section in the target highway tunnel, so as to complete the segmented dimming control of the target highway tunnel.

[0049] An electronic device provided to meet another object of the present application includes a central processing unit and a memory. The central processing unit is used to call and run a computer program stored in the memory to execute the steps of the method for controlling the segmented dimming of the highway tunnel described in the present application.

[0050] A computer-readable storage medium provided to meet another object of the present application stores a computer program implemented according to the method for controlling the segmented dimming of the highway tunnel in the form of computer-readable instructions. When the computer program is called and run by a computer, it executes the steps included in the corresponding method.

[0051] Compared with the prior art, in view of the problems in the prior art that the traffic flow, vehicle speed, and the brightness outside the tunnel are different in each season and each time period, and the lighting facilities in the tunnel have been operating at the highest required lighting level throughout the day and year, resulting in great energy waste, the present application includes but is not limited to the following beneficial effects:

[0052] First, the method for controlling the segmented dimming of the highway tunnel in the present application can significantly reduce energy consumption and improve the energy conservation and environmental protection efficiency. Most of the existing tunnel lighting relies on fixed brightness or manual adjustment in different time periods. This method cannot fully adjust the lighting brightness according to the real-time traffic flow, vehicle speed, and the brightness outside the tunnel, resulting in energy waste. The method for controlling the segmented dimming of the highway tunnel in the present application can flexibly adjust the lighting requirements according to the real-time conditions inside and outside the tunnel, such as traffic flow, vehicle speed, and the brightness outside the tunnel, avoiding unnecessary high-power lighting. Especially when the traffic flow is small, the vehicle speed is low, and the brightness outside the tunnel is high, it reduces the consumption of lighting power. By accurately calculating the required brightness of each section of the tunnel, it can provide sufficient lighting only when necessary, reducing the overall energy consumption and meeting the requirements of energy conservation and environmental protection.

[0053] Second, the segmented dimming control method for highway tunnels in this application can significantly reduce energy consumption while greatly improving safety and driving visibility. By monitoring and adjusting the lighting brightness of each tunnel segment in real time, it can ensure that the lighting brightness always remains within a range that can guarantee safe driving while avoiding energy waste. Especially when the vehicle speed is low or the traffic density is high, it can adjust the lighting according to the actual situation to ensure clear visibility for the driver and avoid affecting driving safety due to insufficient or excessive lighting. Therefore, safety is enhanced without increasing unnecessary energy consumption.

[0054] Third, the segmented dimming control method for highway tunnels in this application is based on a PID control model. The tunnel lighting system can make fine adjustments according to the error between the actual lighting demand and the target brightness, promptly correct the deviation, and avoid over-illumination or under-illumination caused by control lag or inaccuracy. PID control can reduce the error in the lighting adjustment process, provide stable and accurate lighting intensity, and enhance the reliability and adaptability of the control system.

[0055] Fourth, the segmented dimming control method for highway tunnels in this application can respond in real time to changes in vehicle speed, traffic flow, and external tunnel brightness. The lighting demand of highway tunnels is affected by multiple factors, especially traffic flow, vehicle speed, and external tunnel brightness, which change under different times, seasons, weather conditions, etc. Traditional constant lighting or lighting adjustment at fixed time intervals cannot cope with these changes. By introducing a dimming model with multi-information collaboration, it can monitor and comprehensively consider these dynamic factors in real time, and thus accurately calculate the required brightness of each tunnel section according to the changes in vehicle speed, traffic flow, and external tunnel brightness, and flexibly adjust the lighting intensity. This intelligent and real-time responsive lighting adjustment can effectively avoid unnecessary energy waste and reduce the burden on the environment.

[0056] Fifth, the segmented dimming control method for highway tunnels in this application can achieve fine and accurate segmented dimming. Highway tunnels usually consist of multiple segments, and the lighting demand for each segment is different. For example, the entrance section of the tunnel requires higher brightness for the driver to quickly adapt to the tunnel environment, while the middle section of the tunnel may require lower brightness. By dividing the tunnel into multiple segments and independently dimming according to the required brightness of each segment, the system can provide different lighting intensities for the actual needs of different segments, thereby further optimizing energy use and maintaining safety.

[0057] Sixthly, the segmented dimming control method for highway tunnels of the present application can greatly improve the automation and intelligence of the tunnel lighting system. By utilizing real-time data (traffic flow, vehicle speed, and outside-tunnel brightness) and an automatic control model, the intelligence level of the tunnel lighting system is enhanced. Traditional manual adjustment or time-based adjustment methods often cannot effectively respond to changing traffic conditions and environmental brightness, while a system based on real-time data and a dimming control model can automatically and intelligently adjust the lighting, making the tunnel lighting system more efficient and intelligent, and reducing manual intervention and misoperations.

[0058] Seventhly, the segmented dimming control method for highway tunnels of the present application fully considers the changes in factors such as different seasons, different times, different traffic flows, vehicle speeds, and outside-tunnel brightness, and can adjust the requirements for tunnel lighting according to different environmental conditions. Whether it is day or night, sunny or rainy, during the peak traffic flow period or in an empty period, the system can accurately adjust the lighting intensity according to the actual situation, ensuring high efficiency and energy conservation while meeting safety requirements.

[0059] Furthermore, by introducing a multi-information collaborative dimming method based on traffic flow, vehicle speed, and outside-tunnel brightness, combined with the fine adjustment of the PID control model, the performance of the tunnel lighting system can be significantly optimized, energy consumption can be reduced, the adaptability and intelligence level of the tunnel lighting system can be improved, and the goals of energy conservation and environmental protection can be achieved while ensuring driving safety. This method can not only solve the limitations of traditional lighting methods but also meet the requirements for safety, comfort, economy, and environmental friendliness during tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The above and / or additional aspects and advantages of the present application will become apparent and understandable from the following description of the embodiments in conjunction with the drawings, where:

[0061] Figure 1 is a schematic flowchart of the segmented dimming control method for highway tunnels in an embodiment of the present application;

[0062] Figure 2 is an exemplary architecture of the tunnel lighting segmented dimming simulation model in an embodiment of the present application;

[0063] Figure 3 is an exemplary architecture of the PID control model in an embodiment of the present application;

[0064] Figure 4 is a principle block diagram of the segmented dimming control device for highway tunnels in an embodiment of the present application;

[0065] Figure 5 is a schematic structural diagram of a computer device in an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0066] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0067] Those skilled in the art of the present technology can understand that, unless specifically stated otherwise, the singular forms "a", "an", "the", and "said" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of the present application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or their groups. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may also be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0068] Those skilled in the art of the present technology can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of those of ordinary skill in the art to which the present application pertains. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless specifically defined as here.

[0069] Those skilled in the art can understand that the "client", "terminal", and "terminal device" used herein include both devices with wireless signal receivers that only have the ability to receive and no transmitting ability, and devices with receiving and transmitting hardware that have the receiving and transmitting hardware capable of two-way communication on a two-way communication link. Such devices can include: cellular or other communication devices such as personal computers, tablet computers, etc., which have a single-line display or a multi-line display or a cellular or other communication device without a multi-line display; PCS (Personal Communications Service), which can combine voice, data processing, fax, and / or data communication capabilities; PDA (Personal Digital Assistant), which can include a radio frequency receiver, a pager, Internet / intranet access, a web browser, a notepad, a calendar, and / or a GPS (Global Positioning System) receiver; conventional laptop and / or palm computers or other devices, which are conventional laptop and / or palm computers or other devices with and / or including a radio frequency receiver. The "client", "terminal", and "terminal device" used herein can be portable, transportable, installed in a vehicle (air, sea, and / or land), or suitable for and / or configured to run locally, and / or run in a distributed manner at any other location on the earth and / or in space. The "client", "terminal", and "terminal device" used herein can also be a communication terminal, an Internet access terminal, a music / video playback terminal, such as a PDA, a MID (Mobile Internet Device), and / or a mobile phone with music / video playback function, or can also be a smart TV, a set-top box, and other devices.

[0070] The hardware referred to by names such as "server", "client", and "service node" in this application is essentially an electronic device with the equivalent capabilities of a personal computer, and is a hardware device with the necessary components disclosed by the von Neumann principle, including a central processing unit (including an arithmetic unit and a controller), a memory, an input device, and an output device. The computer program is stored in its memory, and the central processing unit loads the program stored in the external memory into the memory for execution, executes the instructions in the program, and interacts with the input / output devices to complete specific functions.

[0071] It should be noted that the concept of "server" referred to in this application can similarly be extended to the case applicable to a server cluster. According to the network deployment principle understood by those skilled in the art, the various servers should be logically divided. Physically, these servers can either be independent of each other but can be invoked through an interface, or be integrated into a physical computer or a set of computer clusters. Those skilled in the art should understand this flexibility and should not be restricted by this in the implementation manner of the network deployment method of this application.

[0072] One or several technical features of this application, unless expressly specified, can either be deployed on a server for implementation and accessed by a client remotely invoking an online service interface provided by the server, or be directly deployed and run on the client for implementation and access.

[0073] The neural network models cited or possibly cited in this application, unless expressly specified, can either be deployed on a remote server and remotely invoked on the client, or be deployed on a client with sufficient device capabilities for direct invocation. In some embodiments, when it runs on the client, its corresponding intelligence can be obtained through transfer learning to reduce the requirements for the client's hardware operating resources and avoid over-occupying the client's hardware operating resources.

[0074] All kinds of data involved in this application, unless expressly specified, can either be remotely stored on a server or stored on a local terminal device, as long as it is suitable for being invoked by the technical solution of this application.

[0075] Those skilled in the art should be aware of this: Although the various methods of this application are described based on the same concept and thus show commonality with each other, unless otherwise specified, these methods can all be executed independently. Similarly, for each embodiment disclosed in this application, they are all proposed based on the same inventive concept. Therefore, for concepts with the same expression, as well as concepts that are only appropriately transformed for convenience although the concept expressions are different, they should be equally understood.

[0076] For each embodiment to be disclosed in this application, unless expressly pointed out that there is a mutually exclusive relationship between them, otherwise, the relevant technical features involved in each embodiment can be cross-combined to flexibly construct new embodiments, as long as this combination does not deviate from the creative spirit of this application and can meet the requirements in the prior art or solve certain deficiencies in the prior art. Those skilled in the art should be aware of this flexibility.

[0077] Please refer to Figure 1 , in one embodiment of the highway tunnel sectional dimming control method of this application, it includes:

[0078] Step S10: In response to an instruction for segmental dimming control of a highway tunnel, obtain the vehicle speed, traffic flow, and the luminance outside the tunnel of the arriving vehicles in the target highway tunnel, where the target highway tunnel is constructed by successively connecting a first tunnel entrance section, a second tunnel entrance section, a tunnel middle section, a tunnel transition section, a first tunnel exit section, and a second tunnel exit section;

[0079] The highway tunnel segmental dimming control system in the terminal device can, in response to an instruction for segmental dimming control of a highway tunnel, obtain the vehicle speed, traffic flow, and the luminance outside the tunnel of the arriving vehicles in the target highway tunnel, where the target highway tunnel is constructed by successively connecting a first tunnel entrance section (entrance section 1), a second tunnel entrance section (entrance section 2), a tunnel middle section (middle section), a tunnel transition section (transition section), a first tunnel exit section (exit section 1), and a second tunnel exit section (exit section 2);

[0080] In some embodiments, the vehicle speed of the arriving vehicles refers to the speed of the vehicles traveling in the tunnel when they arrive, and this data can be obtained through speed measurement devices in the tunnel (such as radars, cameras, etc.). Monitoring the vehicle speed helps to judge the smoothness of the traffic flow, the traffic conditions, and provides a decision-making basis for controlling the lights.

[0081] The traffic flow refers to the number of vehicles passing through the tunnel within a certain period of time, and the traffic flow can be monitored by sensors installed in the tunnel (such as induction coils, infrared sensors, video surveillance systems, etc.). Monitoring the traffic flow helps to judge the traffic density in the tunnel, which in turn affects the adjustment of the light intensity. If the traffic flow is large, it may be necessary to enhance the lighting to ensure safety; if the traffic flow is small, the lighting may be reduced to save energy. The luminance outside the tunnel refers to the ambient light luminance outside the tunnel exit or tunnel entrance, and this data is usually measured by a light sensor, which reflects the natural light intensity outside the tunnel. The luminance outside the tunnel directly affects the lighting requirements inside the tunnel. For example, in the daytime or under sunny conditions, the luminance outside the tunnel is high, and the lighting inside the tunnel can be appropriately reduced; while at night or on cloudy days, the luminance outside the tunnel is low, and the lighting inside the tunnel needs to be brightened.

[0082] In some embodiments, the first tunnel entrance section is the first part where vehicles enter the tunnel. Usually, there is a significant difference in ambient light. Tunnel lighting needs to adapt to the transition from external light to the inside of the tunnel to ensure the driver's visual adaptation. The second tunnel entrance section is adjacent to the first tunnel entrance section and is the second section after entering the tunnel. The lighting control in this section usually needs to be adjusted according to the brightness outside the tunnel and the driving conditions of the vehicle. The middle section of the tunnel is the main part of the tunnel. The vehicle speed and traffic flow may be relatively stable, and the lighting needs to be adjusted according to the passing of vehicles to ensure the safety and visibility of the driver. The tunnel transition section is the part where the tunnel is about to reach the exit. The lighting system usually gradually reduces the lighting to match the brightness of the external ambient light and avoid strong light changes affecting the driver. The first tunnel exit section represents the first exit section of the tunnel. Usually, it is the first section transitioning from the tunnel to the external environment. The lighting needs to gradually transition according to the brightness outside the tunnel to reduce the visual impact on the driver. The second tunnel exit section is the last part where the vehicle completely exits the tunnel. The tunnel lighting may be completely turned off or significantly reduced to match the external natural light.

[0083] By obtaining data such as the vehicle speed, traffic flow, and the brightness outside the tunnel of the arriving vehicles, the tunnel lighting system can automatically adjust according to the changes in vehicle speed, traffic flow, and external brightness to ensure the safety, visibility, and reasonable utilization of energy inside the tunnel.

[0084] In some embodiments, referring to Figure 2 , the tunnel lighting segmented dimming simulation model includes a signal input module, a brightness prediction module, a power calculation module, and a power adjustment module. The signal input module in the tunnel lighting segmented dimming simulation model in the highway tunnel segmented dimming control system can collect the traffic flow, vehicle speed, and the brightness data outside the tunnel of the target tunnel, establish three variables in the Matlab workspace, named luminance, velocity, and flow respectively, assign the data in the table to these three variables, and use the assignin function to transfer the three variables to simulink. In simulink, use the simin component to connect these three variables to the signal input section in the tunnel lighting segmented dimming simulation model and generate signals respectively, and use the scope component in the sinks component library to display the vehicle speed, traffic flow, and the brightness outside the tunnel of the arriving vehicles.

[0085] Step S20: Determine the required brightness of the corresponding first tunnel entrance section and the middle section of the target highway tunnel respectively according to the vehicle speed of the arriving vehicle, the traffic flow, and the brightness outside the tunnel by using a preset tunnel dimming control model.

[0086] After obtaining the vehicle speed, traffic flow, and the brightness outside the tunnel of the arriving vehicles in the target highway tunnel, use a preset tunnel dimming control model to determine the required brightness of the corresponding first tunnel entrance section and the tunnel middle section of the target highway tunnel according to the vehicle speed of the arriving vehicles, the traffic flow, and the brightness outside the tunnel; wherein, the tunnel dimming control model is used to control the required brightness of the first tunnel entrance section and the required brightness of the tunnel middle section, and the tunnel dimming control model includes an expression for the required brightness of the first tunnel entrance section and an expression for the required brightness of the tunnel middle section.

[0087] In a specific embodiment, the steps of using a preset tunnel dimming control model to determine the required brightness of the corresponding first tunnel entrance section and the tunnel middle section of the target highway tunnel according to the vehicle speed of the arriving vehicles, the traffic flow, and the brightness outside the tunnel include:

[0088] The expression for the required brightness of the first tunnel entrance section is:

[0089]

[0090] wherein, L th1 represents the required brightness of the first tunnel entrance section, N represents the traffic flow, V represents the vehicle speed of the arriving vehicles, and L 20 (S) represents the brightness outside the tunnel.

[0091] The expression for the required brightness of the tunnel middle section is:

[0092]

[0093] wherein, L in represents the required brightness of the tunnel middle section.

[0094] From the above expressions for the required brightness of the first tunnel entrance section and the required brightness of the tunnel middle section, the required brightness of the corresponding first tunnel entrance section and the tunnel middle section of the target highway tunnel can be calculated and determined, so as to perform the calculation of the required brightness of other tunnel sections subsequently and calculate and determine the tunnel lamp power corresponding to each tunnel section of the target highway tunnel, so as to perform the sectional dimming control of the target highway tunnel.

[0095] Step S30: Calculate and determine the required brightness of the second tunnel entrance section and the required brightness of the tunnel transition section respectively according to the required brightness of the first tunnel entrance section, and calculate and determine the required brightness of the first tunnel exit section and the required brightness of the second tunnel exit section respectively by using the required brightness of the tunnel middle section;

[0096] After determining the required brightness of the corresponding first tunnel entrance section and the tunnel middle section of the target highway tunnel according to the vehicle speed of the arriving vehicle, the traffic flow, and the brightness outside the tunnel using a preset tunnel dimming control model, the required brightness of the second tunnel entrance section and the required brightness of the tunnel transition section are respectively calculated and determined based on the required brightness of the first tunnel entrance section, and the required brightness of the first tunnel exit section and the required brightness of the second tunnel exit section are respectively calculated and determined using the required brightness of the tunnel middle section;

[0097] In some embodiments, after calculating and determining the required brightness of the corresponding first tunnel entrance section and the tunnel middle section of the target highway tunnel according to the above tunnel dimming control model, the steps of calculating and determining the required brightness of the second tunnel entrance section and the required brightness of the tunnel transition section based on the required brightness of the first tunnel entrance section include:

[0098] The expression for the required brightness of the second tunnel entrance section is:

[0099] L th2 = 0.5 × L th1 ,

[0100] where L th2 represents the required brightness of the second tunnel entrance section;

[0101] The expression for the required brightness of the tunnel transition section is:

[0102] L tr = 0.15 × L th1 ,

[0103] where L tr represents the required brightness of the tunnel transition section.

[0104] The required brightness of the second tunnel entrance section and the required brightness of the tunnel transition section can be calculated and determined from the above expressions for the required brightness of the second tunnel entrance section and the required brightness of the tunnel transition section.

[0105] In some embodiments, the steps of calculating and determining the required brightness of the first tunnel exit section and the required brightness of the second tunnel exit section using the required brightness of the tunnel middle section include:

[0106] The expression for the required brightness of the first tunnel exit section is:

[0107] L ex1 = 3 × L in ,

[0108] where L ex1 represents the required brightness of the first tunnel exit section;

[0109] The expression for the required luminance of the second tunnel exit section is as follows:

[0110] L ex2 = 5 × L in ,

[0111] where L ex2 represents the required luminance of the second tunnel exit section.

[0112] From the expression for the required luminance of the first tunnel exit section and the expression for the required luminance of the second tunnel exit section above, the required luminance of the second tunnel entrance section and the required luminance of the tunnel transition section can be calculated and determined, providing sufficient data preparation for subsequent calculation and determination of the tunnel lamp power corresponding to each tunnel section of the target highway tunnel.

[0113] Step S40: According to the required luminances of the first tunnel entrance section, the second tunnel entrance section, the tunnel middle section, the tunnel transition section, the first tunnel exit section, and the second tunnel exit section, calculate and determine the tunnel lamp power corresponding to each tunnel section of the target highway tunnel respectively;

[0114] After calculating and determining the required luminance of the second tunnel entrance section and the required luminance of the tunnel transition section respectively according to the required luminance of the first tunnel entrance section, and calculating and determining the required luminance of the first tunnel exit section and the required luminance of the second tunnel exit section respectively using the required luminance of the tunnel middle section, then according to the required luminances of the first tunnel entrance section, the second tunnel entrance section, the tunnel middle section, the tunnel transition section, the first tunnel exit section, and the second tunnel exit section, calculate and determine the tunnel lamp power corresponding to each tunnel section of the target highway tunnel respectively;

[0115] In some embodiments, the expression for the tunnel lamp power corresponding to each tunnel section of the target highway tunnel includes:

[0116] E i = L i × θ,

[0117] where E i represents the illuminance value of the i-th section of the target highway tunnel, L i represents the required luminance of the i-th section of the target highway tunnel, L i includes the first tunnel entrance section, the second tunnel entrance section, the tunnel middle section, the tunnel transition section, the first tunnel exit section, and the second tunnel exit section, and θ represents the conversion coefficient between road surface illuminance and road surface luminance;

[0118]

[0119] where Φ iP represents the luminous flux of the lighting fixture that meets the required illuminance, η represents the utilization coefficient of the lighting fixture, N* represents the layout coefficient of the lighting fixture, M* represents the maintenance coefficient of the lighting fixture, W represents the road surface width of the target highway tunnel, and S represents the layout spacing of the lighting fixtures;

[0120]

[0121] Among them, P i represents the lamp power of the i-th section of the target highway tunnel, and b represents the luminous efficacy coefficient of the lighting fixture.

[0122] From the expressions of the tunnel lamp powers corresponding to the respective tunnel segments of the above-mentioned target highway tunnel, the tunnel lamp powers corresponding to the first tunnel entrance section, the second tunnel entrance section, the tunnel middle section, the tunnel transition section, the first tunnel exit section, and the second tunnel exit section in the target highway tunnel can be calculated and determined.

[0123] Step S50: Input the tunnel lamp powers corresponding to the respective tunnel segments into a preset PID control model to control the tunnel lamp brightness of each tunnel segment in the target highway tunnel, so as to complete the segmented dimming control of the target highway tunnel.

[0124] After calculating and determining the tunnel lamp powers corresponding to the respective tunnel segments of the target highway tunnel according to the required brightnesses of the first tunnel entrance section, the second tunnel entrance section, the tunnel middle section, the tunnel transition section, the first tunnel exit section, and the second tunnel exit section, input the tunnel lamp powers corresponding to the respective tunnel segments into a preset PID control model to control the tunnel lamp brightness of each tunnel segment in the target highway tunnel, so as to complete the segmented dimming control of the target highway tunnel.

[0125] In some embodiments, please refer to Figure 3 , the PID control model realizes control by comparing the error between the actual data of the controlled object and the target value in the way of Proportion, Integral, and Differential. There are 6 groups of PID control systems in the PID control board, and each group corresponds to a tunnel segment. A group of PID control systems is divided into three parts, namely the control target value, the PID control model, and the controlled object. The control target value is the lighting power from the previous board and serves as the input to the PID control model. The controlled object is the lighting fixtures in the tunnel segment. The PID control model takes the control result of the controlled object as feedback, calculates its error from the control target value, and performs proportional adjustment, integral adjustment, and differential adjustment.

[0126] In proportional control, the controller responds proportionally to the error between the control target value and the control result, and changes the state of the controlled object to reduce the deviation. Increasing the proportional control parameter can speed up the adjustment and reduce the error. However, if the proportional control parameter is too large, the stability of the system will be reduced. Although proportional control has a fast response and a simple structure, it will produce a static error in a self-balancing system and cause oscillation when facing a time-delay system, and its dynamic characteristics are also poor. The proportional control parameter of the PID control model in this application is set to 1.

[0127] There is a steady-state error in the system, and integral control needs to be added to eliminate it. In the PID control model, when an error occurs, the integral term accumulates the error over time until the error is eliminated. At this time, the integral control outputs a constant value, which is used to be superimposed on the proportional control. The strength of the integral action is closely related to the integral time. The longer the integral time, the smaller the integral action; on the contrary, the shorter the integral time, the greater the integral action. The integral control parameter of the PID control model in this application is set to 0.3.

[0128] In PID control, proportional control controls the current error, integral control controls the past error, and derivative control can be regarded as a way to control the future error. In order to achieve the purpose of accelerating the system response speed and improving the dynamic characteristics of the system, derivative control can predict the trend of error change and reduce the error in time. By changing the adjustment direction in advance, an anticipatory control effect is generated before the error signal becomes larger. However, it should be noted that derivative control will also amplify the noise interference in the system. Therefore, when the derivative control parameter is too large, the anti-interference ability of the system will be reduced. In addition, derivative control cannot be used alone because it depends on the system change rate. When there is no change in the controlled object of the system, derivative control will not output and no control effect will be generated. The derivative control parameter of the PID control model in this application is set to 0.03. In the PID control model of this application, proportional control, integral control and derivative control all act simultaneously.

[0129] As can be seen from the above embodiments, compared with the prior art, in view of the problems in the prior art that the traffic flow, vehicle speed and the brightness outside the tunnel vary in different seasons and different time periods, while the lighting facilities in the tunnel have been operating at the highest demand for lighting throughout the day and throughout the year, resulting in a great waste of energy, etc., this application includes but is not limited to the following beneficial effects:

[0130] First, the segmented dimming control method for highway tunnels in this application can significantly reduce energy consumption and improve energy conservation and environmental protection efficiency. Most existing tunnel lighting systems rely on fixed brightness or manual adjustment by time periods. This method cannot fully adjust the lighting brightness according to real-time traffic flow, vehicle speed, and outside-tunnel brightness, resulting in energy waste. The segmented dimming control method for highway tunnels in this application can flexibly adjust lighting requirements according to real-time conditions inside and outside the tunnel, such as traffic flow, vehicle speed, and outside-tunnel brightness, avoiding unnecessary high-power lighting. Especially when the traffic flow is low, the vehicle speed is low, and the outside-tunnel brightness is high, it can reduce the consumption of lighting power. By accurately calculating the required brightness of each section of the tunnel, it can provide sufficient lighting only when necessary, reducing the overall energy consumption and meeting the requirements of energy conservation and environmental protection.

[0131] Second, the segmented dimming control method for highway tunnels in this application can not only significantly reduce energy consumption but also greatly improve safety and driving visibility. By real-time monitoring and adjusting the lighting brightness of each tunnel section, it can ensure that the lighting brightness is always within a range that can guarantee safe driving and avoid energy waste. Especially when the vehicle speed is low or the traffic density is high, it can adjust the lighting according to the actual situation to ensure that the driver's line of sight is clear and avoid affecting driving safety due to insufficient or excessive lighting. Therefore, safety is improved without increasing unnecessary energy consumption.

[0132] Third, the segmented dimming control method for highway tunnels in this application is based on a PID control model. The tunnel lighting system can finely adjust according to the error between the actual lighting demand and the target brightness, promptly correct the deviation, and avoid over-illumination or under-illumination caused by control lag or inaccuracy. PID control can reduce the error in the lighting adjustment process, provide stable and accurate lighting intensity, and enhance the reliability and adaptability of the control system.

[0133] Fourth, the segmented dimming control method for highway tunnels in this application can respond in real time to changes in vehicle speed, traffic flow, and outside-tunnel brightness. The lighting requirements of tunnels are affected by multiple factors, especially traffic flow, vehicle speed, and outside-tunnel brightness, which change under different times, seasons, weather conditions, etc. Traditional constant lighting or fixed-time lighting adjustment cannot cope with these changes. By introducing a dimming model with multi-information collaboration, it can real-time monitor and comprehensively consider these dynamic factors, and thus accurately calculate the required brightness of each section of the tunnel according to changes in vehicle speed, traffic flow, and outside-tunnel brightness, and flexibly adjust the lighting intensity. This intelligent and real-time responsive lighting adjustment can effectively avoid unnecessary energy waste and reduce the burden on the environment.

[0134] Fifthly, the sectional dimming control method for highway tunnels of the present application can achieve fine and accurate sectional dimming. Highway tunnels usually consist of multiple sections, and the lighting requirements for each section are different. For example, a higher brightness is required at the tunnel entrance section for drivers to quickly adapt to the tunnel environment, while a lower brightness may be needed in the middle section of the tunnel. By dividing the tunnel into multiple sections and independently dimming according to the required brightness of each section, the system can provide different lighting intensities according to the actual needs of different sections, thereby further optimizing energy use and maintaining safety.

[0135] Sixthly, the sectional dimming control method for highway tunnels of the present application can greatly improve the automation and intelligence of the tunnel lighting system. By using real-time data (traffic flow, vehicle speed, and outside-tunnel brightness) and an automatic control model, the intelligence level of the tunnel lighting system is enhanced. Traditional manual adjustment or time-based adjustment methods often cannot effectively cope with changing traffic conditions and environmental brightness, while a system based on real-time data and a dimming control model can automatically and intelligently adjust the lighting, making the tunnel lighting system more efficient and intelligent, and reducing manual intervention and misoperation.

[0136] Seventhly, the sectional dimming control method for highway tunnels of the present application fully considers the changes in factors such as different seasons, different times, different traffic flows, vehicle speeds, and outside-tunnel brightness, and can adjust the tunnel lighting requirements according to different environmental conditions. Whether it is day or night, sunny or rainy, peak traffic flow or empty periods, the system can accurately adjust the lighting intensity according to the actual situation, ensuring high efficiency and energy conservation on the premise of meeting safety requirements.

[0137] Furthermore, by introducing a multi-information collaborative dimming method based on traffic flow, vehicle speed, and outside-tunnel brightness, combined with the fine adjustment of the PID control model, the performance of the tunnel lighting system can be significantly optimized, energy consumption can be reduced, the adaptability and intelligence level of the tunnel lighting system can be improved, and the goals of energy conservation and environmental protection can be achieved on the premise of ensuring driving safety. This method can not only solve the limitations of traditional lighting methods but also meet the requirements for safety, comfort, economy, and environmental friendliness during the tunnel construction process.

[0138] Please refer to Figure 4, A highway tunnel sectional dimming control device provided to meet one of the purposes of this application, including a data acquisition module 1100, a first required brightness calculation module 1200, a second required brightness calculation module 1300, a tunnel lamp power calculation module 1400, and a sectional dimming control module 1500. Among them, the data acquisition module 1100 is set to respond to an instruction for sectional dimming control of a highway tunnel and acquire the vehicle speed, traffic flow, and tunnel outside brightness of the arriving vehicles in the target highway tunnel. The target highway tunnel is constructed by a first tunnel entrance section, a second tunnel entrance section, a tunnel middle section, a tunnel transition section, a first tunnel exit section, and a second tunnel exit section connected in sequence; the first required brightness calculation module 1200 is set to use a preset tunnel dimming control model to respectively determine the required brightness of the corresponding first tunnel entrance section and tunnel middle section of the target highway tunnel according to the vehicle speed, traffic flow, and tunnel outside brightness of the arriving vehicles; the second required brightness calculation module 1300 is set to calculate and determine the required brightness of the second tunnel entrance section and the tunnel transition section respectively according to the required brightness of the first tunnel entrance section, and calculate and determine the required brightness of the first tunnel exit section and the second tunnel exit section respectively using the required brightness of the tunnel middle section; the tunnel lamp power calculation module 1400 is set to calculate and determine the tunnel lamp power corresponding to each tunnel section of the target highway tunnel respectively according to the required brightness of the first tunnel entrance section, the second tunnel entrance section, the tunnel middle section, the tunnel transition section, the first tunnel exit section, and the second tunnel exit section; the sectional dimming control module 1500 is set to input the tunnel lamp power corresponding to each tunnel section into a preset PID control model to control the tunnel lamp brightness of each tunnel section in the target highway tunnel, so as to complete the sectional dimming control of the target highway tunnel.

[0139] Based on any embodiment of this application, please refer to Figure 5 , Another embodiment of this application further provides an electronic device, which can be implemented by a computer device, such as Figure 5As shown, it is a schematic diagram of the internal structure of a computer device. The computer device includes a processor, a computer-readable storage medium, a memory, and a network interface connected via a system bus. Among them, the computer-readable storage medium of the computer device stores an operating system, a database, and computer-readable instructions. The database can store a control information sequence. When the computer-readable instructions are executed by the processor, the processor can implement a method for segmental dimming control of a highway tunnel. The processor of the computer device is used to provide computing and control capabilities to support the operation of the entire computer device. The memory of the computer device can store computer-readable instructions. When the computer-readable instructions are executed by the processor, the processor can execute the method for segmental dimming control of the highway tunnel in this application. The network interface of the computer device is used to connect and communicate with a terminal. Those skilled in the art can understand that Figure 5 the structure shown in it is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the computer device to which the solution of this application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

[0140] In this embodiment, the processor is used to execute Figure 4 the specific functions of each module in it. The memory stores the program code and various types of data required to execute the above modules or sub-modules. The network interface is used for data transmission between the user terminal and the server. The memory in this embodiment stores the program code and data required to execute all modules in the device for segmental dimming control of the highway tunnel in this application. The server can call the program code and data of the server to execute the functions of all modules.

[0141] This application also provides a storage medium storing computer-readable instructions. When the computer-readable instructions are executed by one or more processors, the one or more processors are caused to execute the steps of the method for segmental dimming control of the highway tunnel according to any embodiment of this application.

[0142] This application also provides a computer program product, including a computer program / instructions. When the computer program / instructions are executed by one or more processors, the steps of the method for segmental dimming control of the highway tunnel according to any embodiment of this application are implemented.

[0143] Those of ordinary skill in the art can understand that all or part of the processes in the above-described embodiments of the present application can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned various methods. Among them, the aforementioned storage medium can be a computer-readable storage medium such as a magnetic disk, an optical disc, a read-only memory (ROM), or a random access memory (RAM), etc.

[0144] The above are only some embodiments of the present application. It should be noted that for those of ordinary skill in the technical field, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A segmented dimming control method for a highway tunnel, characterized in that: include: In response to an instruction to perform segmented dimming control on a highway tunnel, the speed of arriving vehicles, the traffic volume, and the brightness outside the tunnel in a target highway tunnel are obtained, wherein the target highway tunnel is constructed by a first tunnel entrance section, a second tunnel entrance section, a tunnel middle section, a tunnel transition section, a first tunnel exit section, and a second tunnel exit section that are sequentially connected; Using a preset tunnel dimming control model, according to the speed of the arriving vehicle, the traffic volume and the brightness outside the tunnel, respectively determine the required brightness of the first tunnel entrance section and the middle section of the tunnel corresponding to the target highway tunnel; The required brightness of the second tunnel entrance section and the required brightness of the tunnel transition section are calculated and determined according to the required brightness of the first tunnel entrance section, and the required brightness of the first tunnel exit section and the required brightness of the second tunnel exit section are calculated and determined according to the required brightness of the tunnel middle section; According to the required brightness of the first tunnel entrance section, the second tunnel entrance section, the tunnel middle section, the tunnel transition section, the first tunnel exit section and the second tunnel exit section, respectively calculate and determine the tunnel lamp power corresponding to each tunnel section of the target highway tunnel; The tunnel lamp power corresponding to each tunnel segment is input into a preset PID control model to control the tunnel lamp brightness of each tunnel segment in the target highway tunnel to complete the segmented dimming control of the target highway tunnel.

2. The section dimming control method for a highway tunnel according to claim 1, characterized in that: The steps of using a preset tunnel dimming control model to determine the required brightness of the first tunnel entrance section and the middle section of the tunnel corresponding to the target highway tunnel according to the speed of the arriving vehicle, the traffic volume and the brightness outside the tunnel respectively include: The expression of the required brightness of the first tunnel entrance section is: Among them, L th1 represents the required brightness of the first tunnel entrance section, N represents the traffic volume, V represents the speed of the arriving vehicles, and L 20 (S) represents the brightness outside the tunnel.

3. The section dimming control method for a highway tunnel according to claim 2, characterized in that: The steps of using a preset tunnel dimming control model to determine the required brightness of the first tunnel entrance section and the middle section of the tunnel corresponding to the target highway tunnel according to the speed of the arriving vehicle, the traffic volume and the brightness outside the tunnel respectively include: The expression of the required brightness of the middle section of the tunnel is: Among them, L in Indicates the required brightness of the middle section of the tunnel.

4. The section dimming control method for a highway tunnel according to claim 2, characterized in that: The step of respectively calculating and determining the required brightness of the second tunnel entrance section and the required brightness of the tunnel transition section according to the required brightness of the first tunnel entrance section comprises: The expression of the required brightness of the second tunnel entrance section is: L th2 =0.5×L th1 , Among them, L th2 Indicates the required brightness of the second tunnel entrance section; The required brightness of the tunnel transition section is expressed as: L tr =0.15×L th1 , Among them, L tr Indicates the required brightness of the tunnel transition section.

5. The section dimming control method for a highway tunnel according to claim 3, characterized in that: The step of respectively calculating and determining the required brightness of the first tunnel exit section and the required brightness of the second tunnel exit section by using the required brightness of the tunnel middle section comprises: The expression of the required brightness of the first tunnel exit section is: L ex1 =3×L in , Among them, L ex1 Indicates the required brightness of the first tunnel exit section; The expression of the required brightness of the second tunnel exit section is: L ex2 =5×L in , Among them, L ex2 Indicates the required brightness of the second tunnel exit section.

6. The section dimming control method for a highway tunnel according to claim 1, characterized in that: The expressions of the tunnel light power corresponding to each tunnel segment of the target highway tunnel include: AND i =L i ×θ, Among them, E i represents the illumination value of the target highway tunnel section i, L i represents the required brightness of the target highway tunnel section i, L i It includes a first tunnel entrance section, a second tunnel entrance section, a tunnel middle section, a tunnel transition section, a first tunnel exit section and a second tunnel exit section, and θ represents a conversion coefficient between road surface illumination and road surface brightness; Among them, Φ i represents the luminous flux of the lighting fixture that meets the required illumination, η represents the lighting fixture utilization coefficient, N* represents the lighting fixture layout coefficient, M* represents the lighting fixture maintenance coefficient, W represents the road surface width of the target highway tunnel, and S represents the layout spacing of the lighting fixtures; Among them, P i represents the lamp power of the i-th section of the target highway tunnel, and b represents the light efficiency coefficient of the lighting fixture.

7. The highway tunnel segmented dimming control method according to any one of claims 1 to 6, characterized in that: The tunnel dimming control model is used to control the required brightness of the first tunnel entrance section and the required brightness of the middle section of the tunnel.

8. A road tunnel segment dimming control device, characterized in that: include: a data acquisition module, configured to respond to an instruction to perform segmented dimming control on a highway tunnel, and acquire the speed of arriving vehicles, the traffic volume, and the brightness outside the tunnel in a target highway tunnel, wherein the target highway tunnel is constructed by a first tunnel entrance section, a second tunnel entrance section, a tunnel middle section, a tunnel transition section, a first tunnel exit section, and a second tunnel exit section that are sequentially connected; A first required brightness calculation module is configured to use a preset tunnel dimming control model to determine the required brightness of the first tunnel entrance section and the tunnel middle section corresponding to the target highway tunnel according to the speed of the arriving vehicle, the traffic volume and the brightness outside the tunnel; A second required brightness calculation module is configured to calculate and determine the required brightness of the second tunnel entrance section and the required brightness of the tunnel transition section according to the required brightness of the first tunnel entrance section, and to calculate and determine the required brightness of the first tunnel exit section and the required brightness of the second tunnel exit section using the required brightness of the tunnel middle section; a tunnel lamp power calculation module, configured to calculate and determine the tunnel lamp power corresponding to each tunnel segment of the target highway tunnel according to the required brightness of the first tunnel entrance segment, the second tunnel entrance segment, the tunnel middle segment, the tunnel transition segment, the first tunnel exit segment and the second tunnel exit segment; The segmented dimming control module is configured to input the tunnel light power corresponding to each tunnel segment into a preset PID control model to control the tunnel light brightness of each tunnel segment in the target highway tunnel to complete the segmented dimming control of the target highway tunnel.

9. An electronic device, comprising a central processing unit and a memory, characterized in that: The central processing unit is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: It stores a computer program implemented according to the method described in any one of claims 1 to 7 in the form of computer-readable instructions, and when the computer program is called and executed by a computer, the steps included in the corresponding method are executed.

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