Road lighting method and device and electronic equipment

Abstract

The invention relates to the technical field of road lighting, and provides a road lighting method and device and electronic equipment. The method comprises the following steps: receiving V2X information of all vehicles in a preset signal range of a target street lamp; based on the vehicle V2X information, determining a relative distance between a vehicle corresponding to each vehicle V2X information and the target street lamp; determining a minimum relative distance as a target distance; when the target distance is smaller than the preset illumination distance of the target street lamp, determining the current street lamp brightness based on the preset negative correlation between the control distance and the street lamp brightness; and controlling the target street lamp according to the current street lamp brightness. The vehicle V2X information in the preset signal range of the target street lamp is dynamically received to analyze the relative distance between each vehicle and the target street lamp, and the brightness of the street lamp is adjusted according to the relative distance when the relative distance is smaller than the preset illumination distance, so that the energy consumption and light pollution are remarkably reduced while the road illumination requirement of the vehicle is met, and the user experience is improved. And green and environment-friendly illumination is realized.

Description

Technical Field

[0001] The present application relates to the technical field of road lighting, and in particular to a road lighting method, device and electronic equipment. Background Art

[0002] In traditional road lighting systems, lighting activation is usually set to a fixed time or triggered by ambient light brightness sensing. After the lighting is activated, the lighting brightness usually remains fixed and does not change. This lighting method does not take into account the volume of traffic on the road. Even if the road is remote and the traffic volume is light at night, it always provides a constant and bright lighting effect for the road, resulting in a waste of electricity and unnecessary light pollution.

[0003] Therefore, how to provide a solution to the above technical problems is a problem that technicians in this field need to solve. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a road lighting method, device and electronic equipment to solve the problems of street lighting energy consumption and light pollution in the prior art.

[0005] According to a first aspect of an embodiment of the present application, a road lighting control method is provided, which is applied to a controller of a target street lamp, comprising:

[0006] Receive all vehicle V2X information within the preset signal range of the target street lamp; the vehicle V2X information includes the vehicle location;

[0007] Based on the vehicle V2X information, determine the relative distance between the vehicle corresponding to each vehicle V2X information and the target street lamp;

[0008] Determine the smallest relative distance among all relative distances as the target distance;

[0009] When the target distance is less than the preset lighting distance of the target street lamp, the target distance is used as the control distance, and the current street lamp brightness is determined based on the preset negative correlation between the control distance and the street lamp brightness;

[0010] Control the target street light according to the current street light brightness.

[0011] According to a second aspect of an embodiment of the present application, a road lighting control device is provided, comprising:

[0012] A receiving module, used to receive all vehicle V2X information within a preset signal range of a target street lamp; the vehicle V2X information includes the vehicle position;

[0013] A distance determination module, used to determine the relative distance between the vehicle corresponding to each vehicle's V2X information and the target street lamp based on the vehicle's V2X information;

[0014] A distance comparison module is used to determine the smallest relative distance among all relative distances as the target distance;

[0015] A brightness determination module, for determining the current street lamp brightness based on a preset negative correlation between the control distance and the street lamp brightness, using the target distance as the control distance when the target distance is less than the preset lighting distance of the target street lamp;

[0016] The control module is used to control the target street light according to the current street light brightness.

[0017] According to a third aspect of an embodiment of the present application, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0018] According to a fourth aspect of an embodiment of the present application, a computer-readable storage medium is provided, which stores a computer program, and when the computer program is executed by a processor, the steps of the above method are implemented.

[0019] Compared with the prior art, the beneficial effects of the embodiments of the present application include at least the following: the embodiments of the present application dynamically receive V2X information of vehicles within the preset signal range of the target street lamp to analyze whether the relative distance between each vehicle and the target street lamp is less than the preset lighting distance, and adjust the brightness of the street lamp according to the relative distance when it is less than the preset lighting distance. As the relative distance between the vehicle and the target street lamp becomes smaller, the brightness of the target street lamp becomes brighter, thereby achieving the effect of providing necessary lighting for the vehicle when a vehicle passes through the lighting area that the target street lamp is responsible for. If there is no vehicle in the lighting area, the brightness of the street lamp is maintained at a low level, thereby significantly reducing energy consumption and light pollution while meeting the road lighting needs of the vehicle, and implementing green and environmentally friendly lighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of an application scenario of an embodiment of the present application;

[0022] Figure 2 It is a flowchart of a street lamp lighting control method provided in an embodiment of the present application;

[0023] Figure 3 It is a curve change diagram of a preset negative correlation provided in an embodiment of the present application;

[0024] Figure 4 It is a structural schematic diagram of a street lamp lighting control device provided in an embodiment of the present application;

[0025] Figure 5 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

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

[0027] A road lighting method, device and electronic device according to an embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0028] Figure 1 1 is a schematic diagram of an application scenario of an embodiment of the present application. The application scenario may include a first terminal device 101, a second terminal device 102, a third terminal device 103, a server 104 and a network 105.

[0029] The first terminal device 101, the second terminal device 102, and the third terminal device 103 can be hardware or software. When the first terminal device 101, the second terminal device 102, and the third terminal device 103 are hardware, they can be various electronic devices with display screens and support communication with the server 104, including but not limited to vehicle systems, smart phones, tablet computers, laptop portable computers, and desktop computers; when the first terminal device 101, the second terminal device 102, and the third terminal device 103 are software, they can be installed in the above electronic devices. The first terminal device 101, the second terminal device 102, and the third terminal device 103 can be implemented as multiple software or software modules, or as a single software or software module, which is not limited in the embodiment of the present application. Further, various applications can be installed on the first terminal device 101, the second terminal device 102, and the third terminal device 103, such as data processing applications, instant messaging tools, social platform software, search applications, shopping applications, etc.

[0030] The server 104 may be a server that provides various services, for example, a background server that receives a request sent by a terminal device that establishes a communication connection with the server, and the background server may receive and analyze the request sent by the terminal device, and generate a processing result. The server 104 may be a single server, or a server cluster composed of several servers, or a cloud computing service center, which is not limited in the present embodiment of the application.

[0031] It should be noted that the server 104 can be hardware or software. When the server 104 is hardware, it can be various electronic devices that provide various services for the first terminal device 101, the second terminal device 102, and the third terminal device 103. When the server 104 is software, it can be multiple software or software modules that provide various services for the first terminal device 101, the second terminal device 102, and the third terminal device 103, or it can be a single software or software module that provides various services for the first terminal device 101, the second terminal device 102, and the third terminal device 103, and the embodiment of the present application does not limit this.

[0032] The network 105 can be a wired network connected by coaxial cable, twisted pair and optical fiber, or it can be a wireless network that can interconnect various communication devices without wiring, such as Bluetooth, Near Field Communication (NFC), infrared, etc., which is not limited in the embodiments of the present application.

[0033] It should be noted that the specific types, quantities and combinations of the first terminal device 101, the second terminal device 102, the third terminal device 103, the server 104 and the network 105 can be adjusted according to the actual needs of the application scenario, and the embodiments of the present application do not limit this.

[0034] Figure 2 It is a flow chart of a street lamp lighting control method provided in an embodiment of the present application. Figure 2 The street lamp lighting control method can be executed by a controller of a target street lamp, the controller being Figure 1 The first terminal device, the second terminal device, or the third terminal device is implemented. Figure 2 As shown, the street lamp lighting control method includes:

[0035] S201: Receive all vehicle V2X information within a preset signal range of a target street lamp; the vehicle V2X information includes the vehicle location;

[0036] S202: Determine the relative distance between the vehicle and the target street lamp corresponding to each vehicle's V2X information based on the vehicle's V2X information;

[0037] S203: Determine the minimum relative distance among all relative distances as the target distance;

[0038] S204: When the target distance is less than the preset lighting distance of the target street lamp, the target distance is used as the control distance, and the current street lamp brightness is determined based on a preset negative correlation between the control distance and the street lamp brightness;

[0039] S205: Control the target street light according to the current street light brightness.

[0040] It can be understood that if the target distance is not less than the preset lighting distance, that is, there is no vehicle within the preset lighting distance, the street lamp brightness is maintained at the minimum value of the street lamp brightness in the preset negative correlation relationship.

[0041] It can be understood that the lighting control method in this embodiment can be applied to any street lamp controller, and the street lamp controlled by any controller is also the target street lamp corresponding to the controller. The street lamp refers to a street lamp located at a relevant position of the road to be illuminated, such as on both sides of the road or in the middle of the road, and is used to illuminate the road to be illuminated. The specific street lamp form and type can be set according to the actual situation and lighting needs, and are not limited here.

[0042] The controller of any street lamp is ordered to execute this method, so that the controller controls the target street lamp according to the current street lamp brightness determined by this method, and the target street lamp will work according to the street lamp brightness, thereby providing lighting effects for relevant vehicles passing through the road to be illuminated.

[0043] Specifically, when the controller executes this method, it determines the vehicle closest to the target street light based on the V2X information of all vehicles, uses the relative distance between the vehicle and the target street light as the basis for brightness adjustment, determines the street light brightness and controls the target street light to illuminate according to the street light brightness. This method realizes the intelligent management of road lighting, promotes energy conservation, emission reduction and environmental protection, and has important social significance and economic benefits.

[0044] Specifically, the controller and the vehicle exchange information based on the V2X (Vehicle to Everything) function, which refers to the V2I (Vehicle to Infrastructure) function. In the method of this embodiment, the controller is the communication object of the vehicle implementing the V2I function, that is, the infrastructure, which can receive the vehicle V2X information sent by any vehicle within the preset signal range centered on the controller through the V2I function. When the vehicle detects the existence of infrastructure that can receive vehicle V2X information, it will send the vehicle V2X information to the infrastructure through the V2I function. Therefore, for each vehicle, the vehicle will continuously send vehicle V2X information to each controller; for each controller, the controller will continuously receive vehicle V2X information sent by any vehicle.

[0045] Specifically, each vehicle V2X information received by the controller includes at least the vehicle position. Based on each vehicle position and the street lamp position of the target street lamp, the relative distance between the two is calculated, specifically:

[0046]

[0047] Where d is the relative distance, (x l ,y l ) is the coordinate of the street light location, (x v ,y v ) is the coordinate of the vehicle position.

[0048] The controller calculates the relative distance between the corresponding vehicle and the target street light for all received vehicle V2X information. The control principle of the target street light in this embodiment is that when the vehicle enters the lighting area of ​​the target street light, the closer it is to the target street light, the higher the brightness of the street light. When there is no vehicle in the lighting area, the brightness of the street light can be kept at the lowest brightness. Therefore, the control basis for whether the target street light should increase the brightness of the street light is actually to select the smallest relative distance among all relative distances, that is, the target distance. When the target distance is not less than the preset lighting distance of the target street light, there is no vehicle in the lighting area of ​​the current target street light, and the target street light can maintain the lowest brightness. When the target distance is less than the preset lighting distance, there is at least one vehicle corresponding to the target distance in the lighting area of ​​the target street light, and the brightness of the street light is controlled based on the target distance.

[0049] Furthermore, the preset negative correlation between the control distance and the street light brightness indicates that the street light brightness increases as the target distance decreases. In the specific preset negative correlation, there is a minimum street light brightness corresponding to the maximum target distance, which means that when there is no vehicle in the lighting area, the target distance is greater than the preset lighting distance, or the vehicle is at the boundary of the lighting area and the target distance is equal to the preset lighting distance, the street light brightness is the minimum street light brightness. When the target distance is less than the preset lighting distance, as the target distance decreases, the street light brightness gradually increases from the minimum street light brightness to the maximum street light brightness. Usually this change can be set to a linear or other relationship. When the street light brightness increases to the maximum street light brightness as the target distance decreases, the target distance reaches the maximum brightness retention distance. After that, the street light brightness maintains the maximum street light brightness during the decrease or increase of the target distance until the target distance is greater than the maximum brightness retention distance again. The target distance corresponding to the maximum street light brightness can be 0 or a positive value less than the preset lighting distance. It can be set according to the specific situation. At this time, the preset negative correlation can be expressed as:

[0050]

[0051] Where d is the target distance, d1 and d2 are the target distances corresponding to the minimum street light brightness and the maximum street light brightness respectively, d1 is the preset lighting distance, d2 is the maximum brightness maintaining distance, d1>d2≥0; L(d) is the street light brightness that changes with the target distance d, L min and L max are the minimum and maximum street light brightness respectively, g(d) is the function of the street light brightness increasing from the minimum to the maximum when the target distance decreases from the preset lighting distance, usually a decreasing function; L(d) is usually a continuous function, so: L(d1)=L min =L min +g(d1),L(d2)=L max =L min +g(d2), and then g(d2)=L max -L min , g(d1)=0. Assuming g(d) is a linear function, we can further get the accurate function expression of g(d), specifically: like Figure 3 The curve change diagram shown. Of course, in addition to the linear function, g(d) can also be other forms of decreasing functions, as long as the target distance and the street light brightness are negatively correlated, and there is no restriction here. The decreasing speed of the decreasing function is set according to the reaction characteristics of human physiological vision, the speed limit of the road to be illuminated, and other specific criteria.

[0052] In an exemplary embodiment, it is assumed that the target street lamp is located in the middle of the road to be illuminated. There is only one vehicle traveling on the road to be illuminated, which is recorded as the target vehicle. The target vehicle drives from one end of the road to the other. During the process of the target vehicle traveling on the road, since there is only one vehicle on the road to be illuminated, the relative distance of the target vehicle is the target distance. The target vehicle will gradually approach the target street lamp and then gradually move away from the target street lamp. The controller of the target street lamp continues to receive the vehicle V2X information of the target vehicle. The relative distance calculated based on the vehicle V2X information gradually decreases to a certain value and then gradually increases. As the target vehicle travels at a constant speed, the street lamp brightness of the target street lamp is initially maintained at the minimum street lamp brightness. After the relative distance is less than the preset lighting distance, the street lamp brightness gradually increases until it reaches the maximum street lamp brightness. At this time, the relative distance is the maximum brightness maintenance distance. After that, the street lamp brightness maintains the maximum street lamp brightness. At this time, the target vehicle passes the target street lamp and gradually moves away from the target street lamp. During the moving away process, the relative distance gradually increases until it is greater than the maximum brightness maintenance distance. At this time, the street lamp brightness begins to gradually decrease to the minimum street lamp brightness. The target vehicle drives out of the lighting area of ​​the target street lamp, and the target street lamp returns to the maintenance state of the minimum street lamp brightness.

[0053] It is understandable that the primary purpose of setting the streetlight brightness of the target streetlight is to ensure that the driver has a clear field of vision and sufficient reaction time during the driving process of the vehicle. Therefore, the preset lighting distance related to the streetlight brightness and the values ​​of the maximum streetlight brightness and the minimum streetlight brightness are all based on this purpose. For example, for high-speed vehicles or for complex sections such as curves and ramps, a larger preset lighting distance is required as a transition distance to ensure that the driver has sufficient reaction time to ensure driving safety. For example, at night or in severe weather conditions, a larger streetlight brightness is required to ensure a clearer lighting field of vision. Therefore, the adjustable parameters in the negative correlation include the preset lighting distance, the maximum streetlight brightness and the minimum streetlight brightness. The maximum streetlight brightness and the minimum streetlight brightness are also the maximum and minimum values ​​of the streetlight brightness. The adjustment factors include the road speed limit of the road to be illuminated, the complexity of the road section, the real-time traffic flow, the ambient brightness, the content of solid and liquid particulate matter in the air, etc.

[0054] Among them, the preset lighting distance and the minimum value of street lamp brightness are both positively correlated with the road speed limit and the complexity of the road section. The complexity of the road section is determined by the structural parameters of the road such as road slope and road curve parameters. When the complexity of the road section is manifested as the steeper the road slope or the greater the sharp turn, the higher the complexity of the road section, the more necessary it is to reserve sufficient buffer space and reaction time so that the driver can see the larger lighting area at a farther distance.

[0055] Furthermore, the minimum and maximum values ​​of street lamp brightness are also related to the traffic volume, ambient brightness, and the content of solid and liquid particles in the air. When the traffic volume is large, the driver needs to pay attention to the position of other vehicles. Therefore, the maximum and minimum values ​​of street lamp brightness are positively correlated with the traffic volume. The traffic volume can be set through the time window, thereby increasing the prediction effect in the time dimension; ambient brightness refers to the brightness caused by the light source of non-target street lamps to the ambient lighting. The light source usually refers to the sun or other roadside lighting settings. The higher the ambient brightness, the smaller the driver's demand for the target street lamp. Therefore, the maximum and minimum values ​​of street lamp brightness are negatively correlated with the ambient brightness; the content of solid and liquid particles in the air refers to the factors that affect light transmission in the air. Usually, in bad weather such as rain, snow, haze, and sandstorms, the content of solid and liquid particles in the air is high, which interferes with light transmission. For the same street lamp brightness, the driver's perceived field of vision clarity in bad weather will be significantly reduced compared to weather with good air quality. Therefore, it is necessary to increase the minimum and maximum values ​​of street lamp brightness in weather with unclear vision. At this time, the minimum and maximum values ​​of street lamp brightness are positively correlated with the content of solid and liquid particles in the air.

[0056] Specifically, considering the difficulty of parameter setting and application, the adjustment factors of the preset lighting distance, the maximum value and the minimum value of the street lamp brightness can be adjusted respectively. Usually, a fixed road structure is used as the basis for setting the preset lighting distance. In this case, the preset lighting distance is determined according to at least one of the road speed limit, road slope, and road curve parameters of the road to be illuminated where the target street lamp is located.

[0057] Accordingly, since the brightness of the street lamp itself changes dynamically, the maximum and minimum values ​​of the brightness of the street lamp can be dynamically adjusted according to actual conditions, so the method of this embodiment also includes:

[0058] Acquire real-time environmental data of the current target street lamp; the real-time environmental data includes at least one of the traffic volume of the road to be illuminated, the ambient brightness, and the content of solid and liquid particles in the air;

[0059] According to the real-time environmental data, the minimum and maximum values ​​of the street light brightness in the preset negative correlation are adjusted.

[0060] The method of the embodiment of the present application dynamically receives the V2X information of vehicles within the preset signal range of the target street lamp to analyze whether the relative distance between each vehicle and the target street lamp is less than the preset lighting distance, and adjusts the brightness of the street lamp according to the relative distance when it is less than the preset lighting distance. As the relative distance between the vehicle and the target street lamp becomes smaller, the brightness of the target street lamp becomes brighter, thereby achieving the effect of providing necessary lighting for the vehicle when a vehicle passes through the lighting area that the target street lamp is responsible for. If there is no vehicle in the lighting area, the brightness of the street lamp is maintained at a low level, thereby significantly reducing energy consumption and light pollution while meeting the road lighting needs of the vehicle, and implementing green and environmentally friendly lighting.

[0061] In some exemplary embodiments, the control of street lamp brightness can be optimized from different dimensions based on the principle of relative distance to the nearest vehicle, thereby improving the efficiency and accuracy of control.

[0062] Specifically, for vehicles, for the lighting of street lamps in front of the vehicle and the lighting of street lamps behind the vehicle, the driver's field of vision clarity is different under the same lighting brightness and the same relative distance of the street lamps. Therefore, it is necessary to ensure that lighting in different directions can achieve a relatively ideal field of vision clarity as much as possible. Based on the relative orientation of the street lamps and the vehicles, the vehicles can be divided into two states: driving towards the target street lamp and driving away from the target street lamp. The vehicle directions in the two states can be regarded as two vectors in opposite directions on the straight line where the road to be illuminated corresponding to the target street lamp is located. Different street lamp brightness adjustment parameters are set for the two states respectively. In the street lamp brightness adjustment logic, the control distance and the street lamp brightness are always negatively correlated, but the values ​​of the corresponding related parameters in the negative correlation of the two states are different, which are respectively recorded as the first preset negative correlation and the second preset negative correlation. At this time: the vehicle V2X information also includes the vehicle direction, and the vehicle direction includes a first direction close to the target street lamp and a second direction away from the target street lamp;

[0063] The process of determining the minimum relative distance among all relative distances as the target distance includes:

[0064] Determine the minimum relative distance among all relative distances corresponding to the first direction as the first target distance;

[0065] Determine the minimum relative distance among all relative distances corresponding to the second direction as the second target distance;

[0066] When the target distance is less than the preset lighting distance of the target street lamp, the target distance is used as the control distance, and the process of determining the current street lamp brightness based on the preset negative correlation between the control distance and the street lamp brightness includes:

[0067] When the first target distance is less than the first preset lighting distance of the target street lamp or the second target distance is less than the second preset lighting distance of the target street lamp, the first target distance is used as the first control distance, and the current first brightness is determined based on the first preset negative correlation between the first control distance and the brightness of the street lamp, and the second target distance is used as the second control distance, and the current second brightness is determined based on the second preset negative correlation between the second control distance and the brightness of the street lamp;

[0068] The larger value between the current first brightness and the current second brightness is taken as the current street lamp brightness.

[0069] It can be understood that if the first target distance is not less than the first preset lighting distance, the current first brightness is determined to be the minimum value of the target street lamp in the first preset negative correlation according to the first preset negative correlation. Similarly, if the second target distance is not less than the second preset lighting distance, the current second brightness is determined to be the minimum value of the target street lamp in the second preset negative correlation according to the second preset negative correlation.

[0070] It can be understood that for the same target street light, the first brightness is the maximum lighting brightness required by vehicles in the first direction, and the second brightness is the maximum lighting brightness required by vehicles in the second direction. The target street light uses the maximum lighting brightness required by all vehicles as the final control brightness, so the larger value of the first brightness and the second brightness is taken as the current street light brightness. At this time, the target street light takes into account the different lighting needs of vehicles in the two states, and uses the maximum lighting brightness corresponding to the lighting needs of the two vehicles as the street light brightness during actual lighting control.

[0071] It is understandable that when a vehicle sends vehicle V2X information to the infrastructure, it can carry the vehicle speed. Based on the vehicle speed and vehicle position, the change of the vehicle position over a period of time can be inferred. Therefore, the method of this embodiment can determine the change of street lamp brightness over a period of time based on the change of the vehicle position in the time dimension. At this time, the vehicle V2X information also includes the vehicle speed and the vehicle navigation direction angle; based on the vehicle V2X information, the process of determining the relative distance between the vehicle corresponding to each vehicle V2X information and the target street lamp includes:

[0072] Based on the vehicle position, vehicle speed and vehicle navigation direction angle, determine the relative distance between the vehicle and the target street light corresponding to each vehicle's V2X information over time;

[0073] The process of determining the minimum relative distance among all relative distances as the target distance includes:

[0074] The target distance that changes over time is determined based on all relative distances; the target distance at each moment is the minimum relative distance at the corresponding moment.

[0075] It is understandable that when receiving multiple vehicle V2X information, each vehicle V2X information includes the current vehicle position (x v (t0),y v (t0)), vehicle speed vel v and the vehicle navigation direction angle, t0 is the current moment. Based on the relative position relationship between the target street lamp and the road to be illuminated and the vehicle navigation direction angle, the vehicle's driving direction angle can be determined, that is, the relative direction angle of the vehicle's navigation direction relative to the target street lamp. At this time, the calculation process of the relative distance changing with time is as follows:

[0076] x v (t) = x v (t0)+vel v ×cosθ×t;

[0077] y v (t) = y v (t0)+velv × sinθ × t;

[0078]

[0079] Among them, (x v (t),y v (t)) is the coordinate of the vehicle position changing with time, t is time, d(t) is the relative distance of the vehicle changing with time, and θ is the driving direction angle of the vehicle.

[0080] It is understandable that after calculating the relative distance of each vehicle as its position changes, the target distance that changes with time is determined from all relative distances. The target distance required for the streetlight brightness of the target streetlight belongs to the vehicle that is closest to the target streetlight at each moment, but considering the differences in vehicle speed and vehicle position between vehicles, the vehicle corresponding to the target distance may not always be the same vehicle as time changes. For example, when the current relative distance of vehicle V1 is close but the vehicle speed is slow, the current relative distance of vehicle V2 is far and the vehicle speed is fast. Vehicle V2 overtakes vehicle V1 and drives faster to the target streetlight. When the overtaking is completed, the target distance is switched from the relative distance of vehicle V1 to the relative distance of vehicle V2. Therefore, the target distance that changes with time is actually a collection of the smallest relative distances at each moment in the relative distances that change with time.

[0081] It is understandable that obtaining the target distance that changes with time is actually a prediction of the driving conditions of each vehicle in the future, which can control the brightness of the street lamps more timely and reduce the impact of control delays.

[0082] It is understandable that if there are other street lights near the target street light, when the target street light controls its own street light brightness, it can also share relevant information with other street lights to prompt other street lights to adjust the brightness in time. Specifically, the vehicle V2X information also includes the vehicle speed and the vehicle navigation direction angle, and the method also includes:

[0083] Based on the relative position of the target street lamp and other street lamps, the recommended brightness of other street lamps is determined according to the current street lamp brightness, the vehicle speed corresponding to the street lamp brightness, and the vehicle navigation direction angle;

[0084] The recommended brightness is sent to the controller of the corresponding street light, so that the controller receiving the recommended brightness controls the corresponding street light according to the recommended brightness.

[0085] Specifically, the relative position of the target street light and other street lights can determine the driving distance of the vehicle from the target street light to other street lights. When the lighting needs of the vehicle are met in a timely manner, there is a delay between the lighting action of the target street light and the lighting action of other street lights. For example, the target street light is at the maximum street light brightness at the current moment, and the vehicle reaches the lighting area of ​​another street light 1 second later, then the other street light starts to adjust the brightness 1 second later. Therefore, after the controller of the target street light has calculated the driving trajectory of the vehicle over time through the vehicle V2X information, it can further calculate the relevant distance between the vehicle and other street lights over time, and then determine the control brightness of other street lights over time, and send the control brightness as the recommended brightness to the controllers of other street lights as the basis for lighting other street lights.

[0086] Furthermore, when the controller of each street lamp receives the recommended brightness sent by the controller of other street lamps, the recommended brightness is not the only basis for determining the final street lamp brightness. The controller of each street lamp will execute the road lighting control method of this embodiment to determine a street lamp brightness by itself. The received recommended brightness can be used as a correction reference value for the current street lamp brightness. That is, if the communication device fails or other reasons occur, the calculation is not comprehensive enough, and the street lamp brightness directly determined by itself cannot fully include the current actual road conditions. In this case, the street lamp brightness may not meet the lighting brightness required by the actual vehicle. At this time, the recommended brightness is used as a reference value, and the current street lamp brightness is updated with the larger value of the current street lamp brightness and the recommended brightness to ensure that the lighting needs of all vehicles are met as fully as possible. Therefore, before the method of this embodiment controls the target street lamp according to the current street lamp brightness, it also includes:

[0087] Receive recommended brightness from controllers of other street lights;

[0088] When the received recommended brightness is higher than the current street lamp brightness, the current street lamp brightness is updated to the maximum value of the received recommended brightness.

[0089] It is understandable that in order to ensure that the brightness of street lamps can fully meet the lighting needs of all vehicles, redundant detection equipment of the vehicle can be set when determining the target distance, so as to have a more comprehensive understanding of the current road conditions and avoid the failure of the communication device to receive the vehicle V2X information when the vehicle passes by, and the omission of certain vehicles when calculating the relative distance due to the failure, non-installation or incompatibility of the communication device. The redundant detection equipment here is mainly implemented by road sensors, including but not limited to image sensors and radar speed meters, analyzing the sensor information of the road sensors, such as image analysis and data analysis, to obtain vehicle monitoring results, including whether there are vehicles on the road to be illuminated, and also including the vehicle position, vehicle speed, and vehicle direction of the vehicle. It can also obtain a set of distance results between the vehicle and the target street lamp, and then use the distance result to correct the relative distance from the vehicle V2X information to ensure that the relative distance is comprehensive, reliable and accurate. Therefore, before determining the smallest relative distance among all relative distances as the target distance, it also includes:

[0090] Acquiring sensor information through a road sensor; the road sensor includes at least one of an image sensor or a radar speed meter, and the sensor information corresponds to the road to be illuminated where the target street lamp is located;

[0091] Analyze sensor information to obtain vehicle monitoring results;

[0092] Based on the vehicle monitoring results, all relative distances are corrected.

[0093] It is understandable that in actual applications, the vehicle monitoring results do not necessarily include all specific vehicle information, as long as it can be determined that the vehicle in the vehicle monitoring results is consistent with the vehicle in the vehicle V2X information. If there is an inconsistent vehicle, that is, the controller does not receive the corresponding vehicle V2X information of the vehicle that appears in the vehicle monitoring results, it is necessary to calculate the relative distance of the vehicle based on the vehicle detection results. In other words, the vehicle monitoring results are a redundant supplement to the vehicle V2X information to improve the comprehensiveness of the road lighting control method for road lighting, ensure the reliable operation of the lighting system, and improve road safety and traffic efficiency.

[0094] The sight lines of the above method embodiments need to comprehensively consider hardware performance, software algorithms and system integration according to actual conditions and user needs to achieve the best detection effect and response speed and achieve the most accurate and reliable lighting effect.

[0095] The method of the embodiment of the present application dynamically receives the V2X information of vehicles within the preset signal range of the target street lamp to analyze whether the relative distance between each vehicle and the target street lamp is less than the preset lighting distance, and adjusts the brightness of the street lamp according to the relative distance when it is less than the preset lighting distance. As the relative distance between the vehicle and the target street lamp becomes smaller, the brightness of the target street lamp becomes brighter, thereby achieving the effect of providing necessary lighting for the vehicle when a vehicle passes through the lighting area that the target street lamp is responsible for. If there is no vehicle in the lighting area, the brightness of the street lamp is maintained at a low level, thereby significantly reducing energy consumption and light pollution while meeting the road lighting needs of the vehicle, and implementing green and environmentally friendly lighting.

[0096] All the above optional technical solutions can be combined in any way to form optional embodiments of the present application, and will not be described in detail here. It should be understood that the size of the sequence number of each step in the above embodiment does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0097] The following is an embodiment of the device of the present application, which can be used to execute the embodiment of the method of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the method of the present application.

[0098] Figure 4 Schematic diagram of a road lighting control device provided in an embodiment of the present application. Figure 4 As shown, the road lighting control device includes:

[0099] The receiving module 401 is used to receive all vehicle V2X information within a preset signal range of the target street lamp; the vehicle V2X information includes the vehicle position;

[0100] A distance determination module 402 is used to determine the relative distance between the vehicle corresponding to each vehicle V2X information and the target street lamp based on the vehicle V2X information;

[0101] The distance comparison module 403 is used to determine the minimum relative distance among all relative distances as the target distance;

[0102] The brightness determination module 404 is used to determine the current street lamp brightness based on a preset negative correlation between the control distance and the street lamp brightness by using the target distance as the control distance when the target distance is less than the preset lighting distance of the target street lamp;

[0103] The control module 405 is used to control the target street light according to the current street light brightness.

[0104] The device of the embodiment of the present application dynamically receives V2X information of vehicles within the preset signal range of the target street lamp to analyze whether the relative distance between each vehicle and the target street lamp is less than the preset lighting distance, and adjusts the brightness of the street lamp according to the relative distance when it is less than the preset lighting distance. As the relative distance between the vehicle and the target street lamp becomes smaller, the brightness of the target street lamp becomes brighter, thereby achieving the effect of providing necessary lighting for the vehicle when a vehicle passes through the lighting area that the target street lamp is responsible for. If there is no vehicle in the lighting area, the brightness of the street lamp is maintained at a low level, thereby significantly reducing energy consumption and light pollution while meeting the road lighting needs of the vehicle, and implementing green and environmentally friendly lighting.

[0105] In an exemplary embodiment, the vehicle V2X information further includes a vehicle direction, the vehicle direction including a first direction close to a target street lamp and a second direction away from the target street lamp;

[0106] The distance comparison module is specifically used for:

[0107] Determine the minimum relative distance among all relative distances corresponding to the first direction as the first target distance;

[0108] Determine the minimum relative distance among all relative distances corresponding to the second direction as the second target distance;

[0109] The brightness determination module is specifically used for:

[0110] When the first target distance is less than the first preset lighting distance of the target street lamp or the second target distance is less than the second preset lighting distance of the target street lamp, the first target distance is used as the first control distance, and the current first brightness is determined based on the first preset negative correlation between the first control distance and the brightness of the street lamp, and the second target distance is used as the second control distance, and the current second brightness is determined based on the second preset negative correlation between the second control distance and the brightness of the street lamp;

[0111] The larger value between the current first brightness and the current second brightness is taken as the current street lamp brightness.

[0112] In an exemplary embodiment, the vehicle V2X information further includes the vehicle speed and the vehicle navigation direction angle; the distance determination module is specifically used for:

[0113] Based on the vehicle position, vehicle speed and vehicle navigation direction angle, determine the relative distance between the vehicle and the target street light corresponding to each vehicle's V2X information over time;

[0114] The distance comparison module is specifically used for:

[0115] The target distance that changes over time is determined based on all relative distances; the target distance at each moment is the minimum relative distance at the corresponding moment.

[0116] In an exemplary embodiment, the vehicle V2X information further includes the vehicle speed and the vehicle navigation direction angle, and the device further includes a brightness recommendation module for:

[0117] Based on the relative position of the target street lamp and other street lamps, the recommended brightness of other street lamps is determined according to the current street lamp brightness, the vehicle speed corresponding to the street lamp brightness, and the vehicle navigation direction angle;

[0118] The recommended brightness is sent to the controller of the corresponding street light, so that the controller receiving the recommended brightness controls the corresponding street light according to the recommended brightness.

[0119] In an exemplary embodiment, the brightness determination module is further configured to:

[0120] Receive recommended brightness from controllers of other street lights;

[0121] When the received recommended brightness is higher than the current street lamp brightness, the current street lamp brightness is updated to the maximum value of the received recommended brightness.

[0122] In an exemplary embodiment, the preset lighting distance is determined according to at least one of the road speed limit, road slope, and road curve parameters of the road to be illuminated where the target street lamp is located.

[0123] In an exemplary embodiment, the apparatus further includes a brightness update module, configured to:

[0124] Acquire real-time environmental data of the current target street lamp; the real-time environmental data includes at least one of the traffic volume of the road to be illuminated, the ambient brightness, and the content of solid and liquid particles in the air;

[0125] According to the real-time environmental data, the minimum and maximum values ​​of the street light brightness in the preset negative correlation are adjusted.

[0126] In an exemplary embodiment, the distance determination module is further configured to:

[0127] Acquiring sensor information through a road sensor; the road sensor includes at least one of an image sensor or a radar speed meter, and the sensor information corresponds to the road to be illuminated where the target street lamp is located;

[0128] Analyze sensor information to obtain vehicle monitoring results;

[0129] Based on the vehicle monitoring results, all relative distances are corrected.

[0130] Figure 5 Schematic diagram of an electronic device 5 provided in an embodiment of the present application. Figure 5As shown, the electronic device 5 of this embodiment includes: a processor 501, a memory 502, and a computer program 503 stored in the memory 502 and executable on the processor 501. When the processor 501 executes the computer program 503, the steps in the above-mentioned method embodiments are implemented. Alternatively, when the processor 501 executes the computer program 503, the functions of the modules / units in the above-mentioned device embodiments are implemented.

[0131] The electronic device 5 may be a desktop computer, a notebook, a PDA, a cloud server, or other electronic device. The electronic device 5 may include, but is not limited to, a processor 501 and a memory 502. Those skilled in the art will appreciate that Figure 5 The electronic device 5 is merely an example and does not limit the electronic device 5 , and may include more or less components than those shown in the figure, or different components.

[0132] The processor 501 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0133] The memory 502 may be an internal storage unit of the electronic device 5, for example, a hard disk or memory of the electronic device 5. The memory 502 may also be an external storage device of the electronic device 5, for example, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device 5. The memory 502 may also include both an internal storage unit of the electronic device 5 and an external storage device. The memory 502 is used to store computer programs and other programs and data required by the electronic device.

[0134] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units.

[0135] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. The computer program may include computer program code, which may be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc.

[0136] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A road lighting control method, characterized in that: The controllers used for the target street lights include: Receive vehicle-to-everything (V2X) information from all vehicles within a preset signal range of the target street lamp; the vehicle V2X information includes the vehicle location; Based on the vehicle V2X information, determine the relative distance between the vehicle corresponding to each vehicle V2X information and the target street lamp; Determining the smallest relative distance among all the relative distances as the target distance; In the case where the target distance is less than the preset lighting distance of the target street lamp, the target distance is used as the control distance, and the current brightness of the street lamp is determined based on a preset negative correlation between the control distance and the brightness of the street lamp; The target street light is controlled according to the current brightness of the street light.

2. The method according to claim 1, characterized in that The vehicle V2X information further includes a vehicle direction, wherein the vehicle direction includes a first direction close to the target street lamp and a second direction away from the target street lamp; The process of determining the minimum relative distance among all the relative distances as the target distance includes: Determine the smallest relative distance among all the relative distances corresponding to the first direction as a first target distance; Determine the smallest relative distance among all the relative distances corresponding to the second direction as the second target distance; In the case where the target distance is less than the preset lighting distance of the target street lamp, the target distance is used as the control distance, and the process of determining the current brightness of the street lamp based on the preset negative correlation between the control distance and the brightness of the street lamp includes: In the case where the first target distance is less than the first preset lighting distance of the target street lamp or the second target distance is less than the second preset lighting distance of the target street lamp, the first target distance is used as the first control distance, and based on the first preset negative correlation between the first control distance and the brightness of the street lamp, the current first brightness is determined; the second target distance is used as the second control distance, and based on the second preset negative correlation between the second control distance and the brightness of the street lamp, the current second brightness is determined; The larger value between the current first brightness and the current second brightness is taken as the current street lamp brightness.

3. The method according to claim 1, characterized in that The vehicle V2X information also includes a vehicle speed and a vehicle navigation direction angle; and based on the vehicle V2X information, a process of determining a relative distance between a vehicle corresponding to each vehicle V2X information and the target street lamp includes: Determine, based on the vehicle position, the vehicle speed and the vehicle navigation direction angle, the relative distance between the vehicle corresponding to each vehicle V2X information and the target street lamp changing over time; The process of determining the minimum relative distance among all the relative distances as the target distance includes: The target distance that changes with time is determined based on all the relative distances; the target distance at each moment is the minimum relative distance at the corresponding moment.

4. The method according to claim 1, characterized in that: The vehicle V2X information also includes vehicle speed and vehicle navigation direction angle, and the method further includes: Based on the relative positions of the target street lamp and other street lamps, and according to the current brightness of the street lamp, the vehicle speed corresponding to the brightness of the street lamp, and the navigation direction angle of the vehicle, the recommended brightness of the other street lamps is determined; The recommended brightness is sent to the controller of the corresponding street light, so that the controller receiving the recommended brightness controls the corresponding street light according to the recommended brightness.

5. The method according to claim 4, characterized in that Before controlling the target street lamp according to the current street lamp brightness, the method further includes: receiving the recommended brightness sent by the controller of the other street lamps; In a case where the received recommended brightness is higher than the current brightness of the street lamp, the current brightness of the street lamp is updated to a maximum value of the received recommended brightnesses.

6. The method according to claim 1, characterized in that The preset lighting distance is determined according to at least one of the road speed limit, road slope, and road curve parameters of the road to be illuminated where the target street lamp is located.

7. The method according to claim 6, characterized in that Also includes: Acquire the real-time environmental data of the current target street lamp; the real-time environmental data includes at least one of the traffic volume of the road to be illuminated, the ambient brightness, and the content of solid and liquid particles in the air; According to the real-time environmental data, the minimum value and the maximum value of the street lamp brightness in the preset negative correlation are adjusted.

8. The method according to any one of claims 1 to 7, characterized in that: Before determining the minimum relative distance among all the relative distances as the target distance, the method further includes: Acquire sensor information through a road sensor; the road sensor includes at least one of an image sensor or a radar speed meter, and the sensor information corresponds to the road to be illuminated where the target street lamp is located; Analyzing the sensor information to obtain vehicle monitoring results; Based on the vehicle monitoring result, all the relative distances are corrected.

9. A road lighting control device, characterized in that: include: A receiving module, used to receive V2X information of all vehicles within a preset signal range of the target street lamp; The vehicle V2X information includes the vehicle location; A distance determination module, used to determine the relative distance between the vehicle corresponding to each vehicle V2X information and the target street lamp based on the vehicle V2X information; A distance comparison module, used for determining the smallest relative distance among all the relative distances as the target distance; a brightness determination module, configured to, when the target distance is less than a preset lighting distance of the target street lamp, use the target distance as a control distance, and determine the current brightness of the street lamp based on a preset negative correlation between the control distance and the brightness of the street lamp; A control module is used to control the target street light according to the current brightness of the street light.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 8 are implemented.

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