Intelligent street lamp management method and device
By setting up key street lights of the camera on the road, identifying targets and counting historical flow changes, and dynamically controlling street light switches, the problem of insufficient electricity in solar and wind energy street lights is solved, and the energy saving and stable operation of street lights is achieved.
Patent Information
- Application Number
- CN202311784479.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2043-12-22
AI Technical Summary
In the prior art, solar and wind energy street lamps have insufficient power storage due to environmental impact, which makes street lamp management difficult to achieve energy saving to ensure long-term stable operation.
By setting up key street lights with cameras on the road, collecting image data, identifying targets and counting historical flow changes, issuing energy saving levels based on the flow conditions of the day, dynamically controlling the switching status of street lights, and realizing energy saving of street lights.
Without hindering road safety, reduce the number of street lights for lighting, realize energy saving of street lights, and ensure long-term and stable operation of street lights.
Smart Images
Figure CN117881050B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of intelligent street lamps, and in particular to an intelligent street lamp management method and device. Background Art
[0002] With the continuous development of social economy, the scale of cities continues to grow. Street lamps, as public infrastructure of cities, are not only an important part of urban construction, but also inseparable from people's daily life. They can play an immeasurable role in the city's social security, traffic safety and urban appearance.
[0003] In the prior art, the switching control of each street lamp mainly relies on manual control or switching control through a light sensor, that is, when the light sensor senses that the ambient brightness is lower than the preset brightness, the street lamp is turned on, and when the light sensor senses that the ambient brightness is not lower than the preset brightness, the street lamp is turned off.
[0004] However, with the development of new energy technologies, more and more areas, especially those with relatively low road usage rates, are gradually using solar street lights and wind street lights for road lighting. However, since solar energy and wind energy are greatly affected by the environment, there is often a situation where the power storage capacity of street lights is insufficient. At this time, how to save energy while lighting the road to ensure the long-term stable operation of street lights has become an important issue in street light management.
[0005] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in the field of this technology. Summary of the invention
[0006] The technical problem to be solved by the present invention is to provide an intelligent street lamp management method.
[0007] The present invention adopts the following technical solution:
[0008] In a first aspect, the present invention provides an intelligent street lamp management method, wherein key street lamps with cameras are arranged at each crosswalk and each intersection on a road, a key street lamp in the corresponding road is designated as a primary street lamp, the road is divided into multiple sections, and a key street lamp in each section is designated as a secondary street lamp; wherein the starting point and the end point of each section are the corresponding crosswalk or intersection; the method comprises:
[0009] Each key street light uses a camera to collect image data of the road, and sends the image data to the secondary street lights in the section where it is located. The secondary street lights perform target recognition on the image data in the section where they are located, and send the target-related data obtained by recognition to the primary street lights on the road where they are located. The primary street lights then send the data to the central control platform, which then collects statistics on the target-related data to obtain the historical traffic change patterns of each road.
[0010] According to the historical traffic change patterns of each road, determine the traffic conditions of each road on the same day, and issue energy-saving levels to the first-level street lights on each road according to the traffic conditions of each road on the same day;
[0011] The first-level street lamps issue corresponding normal switch instructions to the street lamps on the same road according to the energy-saving level, so that the street lamps on the road are partially turned on or all turned on; when the energy-saving level is level 3, all the street lamps on the road are turned on; when the energy-saving level is level 2, the street lamps on both sides of the road are turned on alternately; when the energy-saving level is level 1, the street lamps on one side of the road are turned on alternately, and the street lamps on the other side of the road are turned off;
[0012] When the energy-saving level is level 2 or level 1, the level 1 street lamp will also send the energy-saving level to each level 2 street lamp on the road, so that after the level 2 street lamp receives the energy-saving level of level 2 or level 1 and recognizes that there is a target in the section, the level 2 street lamp will further identify the target category and the target's movement trajectory, and dynamically control the opening and closing status of the street lamp in the section according to the target category and the target's movement trajectory; among them, the key street lamp is always in the on state.
[0013] Preferably, the central control platform collects statistics on target-related data to obtain the historical traffic flow change patterns of each road, specifically including:
[0014] According to the target-related data collected historically, the historical daily traffic volume of each road is counted;
[0015] Match the historical daily traffic volume of each road with the historical holiday distribution to obtain the historical traffic volume change pattern of each road;
[0016] Determining the traffic conditions of each road on the same day based on the historical traffic change rules of each road specifically includes:
[0017] According to the target-related data collected in the past preset period, the daily flow of each road is counted; wherein the target-related data collected historically is the target-related data collected before the past preset period;
[0018] Substitute the daily traffic volume of each road into the corresponding historical traffic volume variation pattern to obtain the daily traffic volume situation of each road.
[0019] Preferably, the dynamically controlling the on and off states of the street lights in the section according to the target category and the target's motion trajectory specifically includes:
[0020] Determine the target's moving direction according to its moving trajectory;
[0021] When the secondary street lamp identifies the target category as a pedestrian, the target location obtained by the last monitoring is used as the center of the circle, and a circular area is formed with the center of the circle and the preset radius;
[0022] All first subsections in the section that intersect with the circular area are obtained, and the secondary street lights send dynamic opening instructions to the street lights on the target side in each first subsection; wherein, the area between every two key positions that are closest to each other is taken as a subsection, and the key positions are corresponding crosswalks or intersections. When the corresponding street light receives the dynamic opening instruction, the street light turns on and lasts for a preset time before returning to normal.
[0023] Preferably, the method further comprises:
[0024] When it is determined that the circular area includes the first edge of the segment where the target is located, and the moving direction of the target is toward the first edge, then finding the first segment adjacent to the first edge;
[0025] The secondary street lights in the target section send circular area related information to the secondary street lights in the first section, so that the first section can pre-turn on the street lights in each subsection of the first section that intersects the circular area according to the circular area related information.
[0026] Preferably, when the energy saving level is level 1, the dynamically controlling the on and off states of the street lights in the section according to the target category and the target's motion trajectory also includes:
[0027] According to the target's motion trajectory, determine the target's motion direction and speed;
[0028] When the secondary street light recognizes that the target category is a non-motor vehicle, and it is determined that the street light on the side where the non-motor vehicle is located is in the off state, the target position obtained by the last monitoring is used as the center of the circle, and the radius is determined according to the moving speed of the target, and a circular area is formed with the center of the circle and the radius;
[0029] All first subsections in the section that intersect with the circular area are obtained, and the secondary street lights send dynamic opening instructions to the street lights on the target side in each first subsection; wherein the area between every two key positions that are closest to each other is taken as a subsection, and the key positions are the corresponding crosswalks or intersections. When the corresponding street lights receive the dynamic opening instructions, the street lights are turned on and remain on for a preset time before returning to normal.
[0030] Preferably, the method further comprises:
[0031] When the camera at the corresponding position recognizes that the non-motor vehicle is moving to the opposite side of the road, dynamic opening instructions are sent alternately to the street lights on both sides of the road and within a preset range from the position of the non-motor vehicle.
[0032] Preferably, before issuing the energy-saving level to the primary street lamps on each road according to the daily traffic conditions of each road, the method further includes:
[0033] The central control platform receives weather forecast information from third-party meteorological agencies;
[0034] When it is confirmed according to the weather forecast information that bad weather occurs in the area where the corresponding road is located in the current period, the energy saving level of the street lamps on the road is determined to be level 3; the bad weather includes one or more of foggy weather, rainy and snowy weather and haze weather.
[0035] Preferably, the energy-saving level is issued to the primary street lamps on each road according to the daily traffic conditions of each road, specifically including:
[0036] When the daily traffic volume of the corresponding road is greater than the first preset traffic volume, the energy saving level is issued to the road as level 3;
[0037] When the daily traffic volume of the corresponding road is less than or equal to the first preset traffic volume, and the daily traffic volume is greater than the second preset traffic volume, the energy saving level is issued to the road as level 2;
[0038] When the daily traffic situation of the corresponding road is less than or equal to the second preset traffic situation, the energy saving level sent to the road is level 1.
[0039] Preferably, when it is determined that the energy-saving level of the corresponding road is level 1, the daily traffic on both sides of the road is analyzed separately, and the relevant information on the side with large daily traffic is sent to the first-level street lights of the road, so that the first-level street lights can turn on the street lights on the side with large daily traffic at intervals and turn off the street lights on the side with small daily traffic.
[0040] In a second aspect, the present invention further provides an intelligent street light management device, which is used to implement the intelligent street light management method described in the first aspect, and the device includes:
[0041] At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the processor to execute the intelligent street lamp management method described in the first aspect.
[0042] In a third aspect, the present invention further provides a non-volatile computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are executed by one or more processors to complete the intelligent street light management method described in the first aspect.
[0043] The present invention predicts the traffic conditions of the day, selects a corresponding energy-saving level according to the traffic conditions of the day, and controls the opening and closing of street lamps on the road according to the energy-saving level, so as to reduce the number of street lamps when the traffic is less on the day, so as to achieve energy saving of street lamps without affecting road safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0045] Figure 1 is a schematic diagram of a first intelligent street lamp management method provided by an embodiment of the present invention;
[0046] Figure 2 It is a schematic diagram of the architecture of each street lamp in an intelligent street lamp management method provided by an embodiment of the present invention;
[0047] Figure 3 is a flow chart of a first intelligent street lamp management method provided by an embodiment of the present invention;
[0048] Figure 4 is a schematic diagram of a second intelligent street lamp management method provided by an embodiment of the present invention;
[0049] Figure 5 is a schematic diagram of a third intelligent street lamp management method provided by an embodiment of the present invention;
[0050] Figure 6 is a flow chart of a second intelligent street lamp management method provided by an embodiment of the present invention;
[0051] Figure 7 is a flow chart of a third intelligent street lamp management method provided by an embodiment of the present invention;
[0052] Figure 8 is a schematic diagram of a fourth intelligent street lamp management method provided by an embodiment of the present invention;
[0053] Fig. 9 is a schematic diagram of a fifth intelligent street lamp management method provided by an embodiment of the present invention;
[0054] Fig.10 is a flowchart of a fourth intelligent street lamp management method provided by an embodiment of the present invention;
[0055] Fig.11is a schematic diagram of a sixth intelligent street lamp management method provided by an embodiment of the present invention;
[0056] Fig.12 is a flowchart of a fifth intelligent street lamp management method provided by an embodiment of the present invention;
[0057] Fig.13 It is a schematic diagram of the architecture of an intelligent street light management device provided by an embodiment of the present invention. DETAILED DESCRIPTION
[0058] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0059] The terms "first", "second", etc. in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.
[0060] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0061] Embodiment 1:
[0062] Embodiment 1 of the present invention provides an intelligent streetlight management method, wherein key streetlights with cameras are arranged at each crosswalk and each intersection on the road, a key streetlight in the corresponding road is designated as a primary streetlight, the road is divided into multiple sections, and a key streetlight in each section is designated as a secondary streetlight; wherein the starting point and the end point of each section are the corresponding crosswalk or intersection, such as Figure 1 As shown, Figure 1 Take a section as an example; a central control platform is set up to centrally control the street lights of each road, and other street lights that are not designated as secondary street lights and primary street lights are regarded as tertiary street lights. The architecture network between the central control platform, primary street lights, secondary street lights and tertiary street lights is as follows: Figure 2 As shown, a central control platform is connected to multiple first-level street lights, a first-level street light is connected to multiple second-level street lights, and a second-level street light is connected to multiple third-level street lights.
[0063] like Figure 3 As shown, the intelligent street lamp management method includes:
[0064] In step 201, each key street light uses a camera to collect image data of the road, and sends the image data to the secondary street light in the section where it is located. The secondary street light performs target recognition on the image data of the section where it is located, and sends the recognized target-related data to the primary street light on the road where it is located, and the primary street light sends it to the central control platform. The central control platform counts the target-related data to obtain the historical traffic flow change pattern of each road; the target-related data includes the target's driving direction, and on which side of the road the target is driving, etc. The targets include pedestrians, non-motor vehicles and motor vehicles, etc.
[0065] In step 202, the daily traffic conditions of each road are determined according to the historical traffic change rules of each road, and the energy-saving level is issued to the first-level street lamps of each road according to the daily traffic conditions of each road; the energy-saving level is set by those skilled in the art based on experience. In this embodiment, three optional energy-saving levels are preset, namely, level 1, level 2 and level 3. The smaller the value, the higher the energy-saving level, that is, the greater the demand for energy saving. The lower the daily traffic, the greater the energy-saving demand, and the higher the energy-saving level. In an optional implementation, the energy-saving level is issued to the first-level street lamps of each road according to the daily traffic conditions of each road, specifically including: when the daily traffic conditions of the corresponding road are greater than the first preset traffic, the energy-saving level is issued to the road as level 3; when the daily traffic conditions of the corresponding road are less than or equal to the first preset traffic, and the daily traffic conditions are greater than the second preset traffic, the energy-saving level is issued to the road as level 2; when the daily traffic conditions of the corresponding road are less than or equal to the second preset traffic, the energy-saving level is issued to the road as level 1. The first preset traffic and the second preset traffic are obtained by those skilled in the art based on empirical analysis.
[0066] In step 203, the first-level street lamp issues corresponding normal switch instructions to each street lamp on the same road according to the energy-saving level, so that the street lamps on the road are partially turned on or all turned on; when the energy-saving level is level 3, all the street lamps on the road are turned on; when the energy-saving level is level 2, the street lamps on both sides of the road are turned on alternately, such as Figure 4 As shown; when the energy saving level is level 1, the street lights on one side of the road are turned on at intervals, and the street lights on the other side of the road are turned off, as shown in Figure 5 As shown; the staggered opening and interval opening are both for non-critical street lights, and critical street lights are not taken into consideration. In a preferred embodiment, when it is determined that the energy-saving level of the corresponding road is level 1, the daily traffic on both sides of the road is analyzed separately, and the relevant information on the side with large daily traffic is sent to the first-level street lights of the road, so that the first-level street lights can alternately open the street lights on the side with large daily traffic and turn off the street lights on the side with small daily traffic.
[0067] In step 204, when the energy-saving level is level 2 or level 1, the first-level street lamp also sends the energy-saving level to each second-level street lamp on the road, so that after the second-level street lamp receives the energy-saving level of level 2 or level 1, and recognizes that there is a target in the section, the second-level street lamp further identifies the target category and the target's motion trajectory, and dynamically controls the on and off states of the street lamps in the section according to the target category and the target's motion trajectory; wherein the key street lamp is always in the on state. The normal switch instruction includes a normal on instruction and a normal off instruction, which are used to control the long-term state of the street lamp on the day, and the dynamic control is realized by a dynamic switch instruction, which includes a dynamic on instruction and a dynamic off instruction, which are used to control the short-term state of the street lamp. For example, when the corresponding street lamp receives a normal on command, the street lamp will continue to be on. If a corresponding dynamic switch command is received during this period, the on or off state will be adjusted according to the dynamic switch command until the effective time of the dynamic switch command ends, and then the on state will be restored. Similarly, when the corresponding street lamp receives a normal off command, the street lamp will continue to be off. If a corresponding dynamic switch command is received during this period, the on or off state will be adjusted according to the dynamic switch command until the effective time of the dynamic switch command ends, and then the off state will be restored. In this embodiment, the process of performing target recognition is obtained by matching the corresponding target recognition model, and the recognition of the target's motion trajectory is obtained by trajectory tracking.
[0068] This embodiment predicts the traffic conditions of the day and selects the corresponding energy-saving level according to the traffic conditions of the day. The opening and closing of street lamps on the road are controlled according to the energy-saving level, so as to reduce the number of street lamps when the traffic is less on the day, so as to achieve energy saving of street lamps without affecting road safety.
[0069] It should be noted here that this embodiment is suitable for roads with relatively fewer people and vehicles, relatively narrow width, and unobstructed central areas, such as national highways, provincial highways, county roads and rural roads in relatively remote areas, and is suitable for night lighting scenes. When there is sufficient light during the day, there is no need to use street lights for lighting.
[0070] In actual application scenarios, the central control platform collects statistics on target-related data to obtain the historical traffic flow change patterns of each road, such as Figure 6 As shown, specifically including:
[0071] In step 301, the historical daily traffic of each road is counted based on the target related data collected historically; the historical daily traffic includes the number of motor vehicles, non-motor vehicles and pedestrians passing on the road within each day within the statistical period.
[0072] In step 302, the historical daily traffic volume of each road is matched with the historical holiday distribution to obtain the historical traffic volume change pattern of each road; the historical traffic volume change pattern is mainly the daily traffic volume change pattern before, during and after each historical holiday. Figure 8 The holidays are all included in the range indicated.
[0073] In an optional implementation, the daily traffic conditions of each road are determined according to the historical traffic change rules of each road, such as Figure 7 As shown, specifically including:
[0074] In step 401, the daily traffic volume of each road is counted based on the target related data collected within a preset period in the past; wherein the target related data collected historically is the target related data collected before the preset period in the past; the preset period is obtained by technical personnel in this field based on empirical analysis.
[0075] In step 402, the daily traffic volume of each road is substituted into the corresponding historical traffic volume variation pattern to obtain the daily traffic volume situation of each road.
[0076] by Figure 8 For example, the daily traffic volume of the corresponding statistical period (such as one year) before the preset period is collected. The historical traffic volume changes show a stable trend during non-holidays, an upward trend in the early stage of a holiday, and then a partial decline in the middle of the holiday, and then a rebound trend in the late stage of the holiday. The current time is before the holiday, and the daily traffic volume obtained in the preset period in the past relative to the current time is as follows Figure 8 As shown in the figure, the daily flow rate has decreased compared with the previous year, so it is believed that there is a trend of overall daily flow rate decrease this year compared with last year. Therefore, the daily flow rate after the decrease (that is, the daily flow rate within the preset period) is substituted into the historical flow change law, and the current flow situation is obtained as follows: Figure 8 shown.
[0077] Considering that in actual use, there may be a situation where roads are expanded and repaired. The newly expanded and repaired roads may increase the flow rate in the area, or may have no significant impact on the overall flow rate growth in the area, but will affect the flow diversion of each road. These will cause the daily flow rate of each road in the area to change, and ultimately cause the flow rate change law of the road to fluctuate greatly, making it impossible to continue to use the old historical flow rate change law. In order to solve this problem, in the scenario of a one-way road or a branch road with an upstream road at only one end, this embodiment also provides a preferred implementation method, which specifically includes:
[0078] When a new branch road is built on the corresponding road, the new daily flow in the target upstream road after the new branch road is built is counted. If the difference between the new daily flow and the old daily flow is less than the preset difference, the target upstream road and other roads further upstream of the target upstream road follow the established historical flow change law (i.e., the flow change law obtained by daily flow analysis); wherein, the old daily flow refers to the daily flow of the target upstream road before the new branch road is built. The difference can be expressed by the difference between the new daily flow and the old daily flow. The preset difference is obtained by those skilled in the art based on empirical analysis.
[0079] If the difference between the new daily flow and the old daily flow is greater than or equal to the preset difference, the direct upstream road of the target upstream road is searched, and the direct upstream road of the target upstream road is used as the next target upstream road for comparison, until the historical flow change law of the corresponding target upstream road can be continued to be used, and this target upstream road is also referred to as a stable upstream road in the future; or, when comparing to an upstream road with a higher preset level number than the newly built branch road, a stable upstream road cannot be obtained; wherein, the first target upstream road is the direct upstream road of the newly built branch road. The preset level number is obtained by those skilled in the art based on empirical analysis.
[0080] If a stable upstream road cannot be obtained when comparing to an upstream road that is higher than the preset level of the newly created branch road, the historical traffic flow variation patterns of each road will be recalculated.
[0081] After obtaining the stable upstream road, the historical flow rate change law of each downstream road of the stable upstream road is obtained by statistically obtaining the daily flow rate of each downstream road, and then using the ratio of daily flow rate between downstream roads of the same level as the basis for division, and diverting the historical daily flow rate of the previous level to obtain the historical daily flow rate of the downstream roads. Thus, based on the historical daily flow rate of the downstream roads, the historical flow rate change law of the downstream roads is obtained.
[0082] by Fig. 9 For example, according to the driving direction of the road, for a road in a certain area, Fig. 9As shown, it includes the main road 1, and downstream roads 11, 111, 112, 12, 121, 122, 1211, 12111, 12112, 1212, 12121 and 12122. Here, each downstream road is named by the serial number of the direct upstream road followed by the branch serial number corresponding to itself. Then, a new branch road 12120 is built on the road where 1212 is located. This road is the newly built branch road. First, visit the upstream from the location of the newly built branch road in sequence. Its direct upstream is road 1212. If the daily flow of road 1212 has changed significantly (that is, the difference between the new daily flow and the old daily flow is greater than or equal to the preset difference), continue to trace it upward, to road 121, road 12 and road 1 in sequence, until the upstream road with a higher preset level than the newly built branch road is traced back (for example, when the preset level is 2, the road two levels higher than road 12120 is road 121, then the traceback stops at road 121). If the daily flow of the traced road still changes significantly, the historical flow change pattern of each road in the area is re-counted.
[0083] If when tracing back to a certain road, such as road 12, it is found that the daily flow rate of this road has changed little (that is, the difference between the new daily flow rate and the old daily flow rate is less than the preset difference), the historical flow rate change law of this road will continue to be used, and the downstream roads will be divided according to the proportion. For example, if the daily flow rate ratio of road 121 to road 122 is monitored to be 1:2, then 1 / 3 of the historical daily flow rate of road 12 is divided into road 121, and 2 / 3 of the historical daily flow rate of road 12 is divided into road 122. The historical daily flow rates of roads 1211 and 1212 are obtained by dividing the historical daily flow rate of road 121, and so on, until the historical daily flow rates of all downstream roads of road 12 are divided, and then the historical flow rate change law of each road is statistically obtained.
[0084] In a preferred embodiment, the on and off states of the street lights in the section are dynamically controlled according to the target category and the target's motion trajectory, such as Fig.10 and Fig.11 As shown, specifically including:
[0085] In step 501, the moving direction of the target is determined according to the moving trajectory of the target.
[0086] In step 502, when the secondary street lamp recognizes that the target category is a pedestrian, the target position obtained by the last monitoring is used as the center of the circle, and a circular area is formed with the center of the circle and a preset radius.
[0087] In step 503, all first subsections in the section that intersect with the circular area are obtained, and the secondary street lights send dynamic opening instructions to the street lights on the target side in each first subsection; wherein the area between every two key positions that are closest to each other is taken as a subsection, and the key positions are corresponding crosswalks or intersections. When the corresponding street light receives the dynamic opening instruction, the street light turns on and lasts for a preset time before returning to normal.
[0088] The normal state is the state controlled by the normal switch command. The preset time and the preset radius are obtained by those skilled in the art based on empirical analysis, and the preset radius is greater than the length of any section of the road. The target location obtained by the last monitoring is the target location monitored by the last key street lamp for the last time. Fig.11 The left side shows the power status of street lights on the road when the energy saving level is level 3 and no pedestrians are detected. At this time, the street lights on the left side of the road are turned on at intervals, and all the street lights on the right side of the road are turned off. Fig.11 The right side shows the power status of the street lights on the road when the camera of the corresponding key street light detects the corresponding pedestrian on the right side of the road. At this time, all street lights on the right side of the road in the circular area formed by the preset radius r with the location of the pedestrian as the center are turned on. Fig.11 In the figure, from bottom to top, there are the first pedestrian crossing, the second pedestrian crossing, and the intersection. There is a pedestrian crossing on each branch road from the intersection. When the pedestrian was detected at the intersection last time, the street lights on the right side (the side where the pedestrian is) of the two branch roads included in the circular area are turned on until they are restored after the preset time. Among them, when the camera of a key street light continuously detects the target, the second street light sends a dynamic command to the corresponding street light every interval t1, and t1 is less than the preset time.
[0089] When the energy saving level is level 1, the on and off states of the street lights in the section are dynamically controlled according to the target category and the target's motion trajectory, such as Fig.12 As shown, it also includes:
[0090] In step 601, the moving direction and moving speed of the target are determined according to the moving trajectory of the target.
[0091] In step 602, when the secondary street light identifies the target category as a non-motor vehicle and determines that the street light on the side where the non-motor vehicle is located is in the off state, the target position obtained by the previous monitoring is used as the center of the circle, and the radius is determined according to the target's movement speed, and a circular area is formed with the center of the circle and the radius; the determination of the radius size based on the target's movement speed can be a plurality of speed intervals preset by a technician in this field, each speed interval corresponds to a radius size, and when the target's movement speed is within the corresponding speed interval, the radius size of the speed interval is used as the radius size of the circular area.
[0092] In step 603, all first subsections in the section that intersect with the circular area are obtained, and the secondary street lights send dynamic opening instructions to the street light intervals on the target side in each first subsection (even if the street light intervals on the target side are opened, if the street lights on the side where the street lights are located are originally in an interval open state, then the original state of each street light remains unchanged); wherein, the area between every two key positions that are closest to each other is taken as a subsection, and the key positions are corresponding crosswalks or intersections. When the corresponding street light receives the dynamic opening instruction, the street light turns on and returns to normal after a preset time.
[0093] In actual use, the method further includes:
[0094] When it is determined that the circular area includes the first edge of the segment where the target is located, and the target's moving direction is toward the first edge, the first segment adjacent to the first edge is found; the secondary street lights in the segment where the target is located send circular area related information to the secondary street lights in the first segment, so that the first segment can pre-turn on the street lights in each subsection of the first segment that intersects the circular area according to the circular area related information. The circular area related information includes the position of the center of the circle and the radius of the circular area. When the target is a pedestrian, pre-turning on the street lights in each subsection of the first segment that intersects the circular area means turning on all the street lights on the side where the pedestrian is located. When the target is a non-motor vehicle, pre-turning on the street lights in each subsection of the first segment that intersects the circular area means turning on the street lights on the side where the non-motor vehicle is located at intervals.
[0095] When a motor vehicle is detected on the road, no action is taken and the system remains in normal state. This is determined by the risks and capabilities of various types of targets. Pedestrians do not have much lighting capabilities (can only use small lighting tools) and may be at greater risk on the road, so all the street lights on their side are lit to provide them with sufficient lighting. Non-motor vehicles have a certain degree of lighting capabilities, so the street lights on their side are lit at intervals. Motor vehicles have sufficient lighting capabilities, so the street lights remain in normal state.
[0096] The method further includes: when the camera at the corresponding position recognizes that a pedestrian is moving to the opposite side of the road, a dynamic opening instruction is sent to all street lamps on both sides of the road and within a preset range from the pedestrian. When the camera at the corresponding position recognizes that a non-motor vehicle is moving to the opposite side of the road, a dynamic opening instruction is sent alternately to street lamps on both sides of the road and within a preset range from the non-motor vehicle.
[0097] The staggered sending and interval sending are both for non-critical street lights at each position. For example, interval sending is sending to some non-critical street lights on one side of the road. For example, for non-critical street lights arranged in sequence, instructions are sent to the first, third, and fifth non-critical street lights, and instructions are not sent to the second and fourth non-critical street lights, so that the street lights on one side are in an interval-open state; staggered sending is for both sides of the road, such as sending instructions to the first, third, and fifth non-critical street lights on one side, and sending instructions to the second and fourth non-critical street lights on the other side, so that the street lights are in a staggered-open state.
[0098] In a preferred embodiment, before issuing the energy-saving level to the primary street lights on each road according to the daily traffic conditions of each road, the method further includes: a central control platform receiving weather forecast information from a third-party meteorological agency; when it is confirmed according to the weather forecast information that severe weather occurs in the area where the corresponding road is located in the current period, determining that the energy-saving level of the street lights on the road is level 3; the severe weather includes one or more of heavy fog, rain and snow, and haze.
[0099] Among them, the judgment conditions for each severe weather are obtained by technical personnel in this field based on the analysis of meteorological indicators to ensure sufficient lighting in severe weather.
[0100] Embodiment 2:
[0101] like Fig.13 , which is a schematic diagram of the architecture of an intelligent street light management device according to an embodiment of the present invention. The intelligent street light management device according to this embodiment includes one or more processors 21 and a memory 22. Fig.13 A processor 21 is taken as an example.
[0102] The processor 21 and the memory 22 may be connected via a bus or other means. Fig.13 The example of connecting through bus is taken in the following.
[0103] The memory 22 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs and non-volatile computer executable programs, such as the intelligent street light management method in Example 1. The processor 21 executes the intelligent street light management method by running the non-volatile software programs and instructions stored in the memory 22.
[0104] The memory 22 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some embodiments, the memory 22 may optionally include a memory remotely arranged relative to the processor 21, and these remote memories may be connected to the processor 21 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
[0105] The program instructions / modules are stored in the memory 22, and when executed by the one or more processors 21, the intelligent street lamp management method in the above-mentioned embodiment 1 is executed.
[0106] It is worth noting that the information interaction, execution process, etc. between the modules and units within the above-mentioned devices and systems are based on the same concept as the processing method embodiment of the present invention. The specific contents can be found in the description of the method embodiment of the present invention and will not be repeated here.
[0107] A person skilled in the art may understand that all or part of the steps in the various methods of the embodiments may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the storage medium may include: a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.
[0108] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An intelligent street lamp management method, characterized in that: Key street lamps with cameras are arranged at each crosswalk and each intersection on the road, a key street lamp in the corresponding road is designated as a primary street lamp, the road is divided into multiple sections, and a key street lamp in each section is designated as a secondary street lamp; wherein the starting point and the end point of each section are the corresponding crosswalk or intersection; the method comprises: Each key street light uses a camera to collect image data of the road, and sends the image data to the secondary street lights in the section where it is located. The secondary street lights perform target recognition on the image data in the section where they are located, and send the target-related data obtained by recognition to the primary street lights on the road where they are located. The primary street lights then send the data to the central control platform, which then collects statistics on the target-related data to obtain the historical traffic change patterns of each road. According to the historical traffic change patterns of each road, determine the traffic conditions of each road on the same day, and issue energy-saving levels to the first-level street lights on each road according to the traffic conditions of each road on the same day; The first-level street lamps issue corresponding normal switch instructions to the street lamps on the same road according to the energy-saving level, so that the street lamps on the road are partially turned on or all turned on; when the energy-saving level is level 3, all the street lamps on the road are turned on; when the energy-saving level is level 2, the street lamps on both sides of the road are turned on alternately; when the energy-saving level is level 1, the street lamps on one side of the road are turned on alternately, and the street lamps on the other side of the road are turned off; When the energy-saving level is level 2 or level 1, the level 1 street lamp also sends the energy-saving level to each level 2 street lamp on the road where it is located, so that after the level 2 street lamp receives the energy-saving level of level 2 or level 1, and recognizes that there is a target in the section where it is located, the level 2 street lamp further identifies the target category and the target's motion trajectory, and dynamically controls the on and off states of the street lamps in the section according to the target category and the target's motion trajectory; wherein the key street lamp is always in the on state; the normal switch instruction is used to control the long-term state of the street lamp on the day, and the dynamic control is realized by the dynamic switch instruction, and the dynamic switch instruction is used to control the short-term state of the street lamp; The central control platform counts the target-related data to obtain the historical traffic flow change pattern of each road, specifically including: counting the historical daily traffic flow of each road based on the target-related data collected historically; matching the historical daily traffic flow of each road with the historical holiday distribution to obtain the historical traffic flow change pattern of each road; The method of determining the daily traffic conditions of each road according to the historical traffic change law of each road specifically includes: counting the daily traffic of each road according to the target-related data collected in the past preset period; wherein the target-related data collected in the past is the target-related data collected before the past preset period; substituting the daily traffic of each road into the corresponding historical traffic change law to obtain the daily traffic conditions of each road; When a branch road is newly built on the corresponding road, the new daily flow rate in the target upstream road after the new branch road is newly built is counted. If the difference between the new daily flow rate and the old daily flow rate is less than the preset difference, the target upstream road and other roads further upstream of the target upstream road continue to use the historical flow rate change law that has been formed; wherein the old daily flow rate refers to the daily flow rate of the target upstream road before the new branch road is newly built; If the difference between the new daily flow and the old daily flow is greater than or equal to the preset difference, then the direct upstream road of the target upstream road is searched, and the direct upstream road of the target upstream road is used as the next target upstream road for comparison, until the historical flow change law of the corresponding target upstream road can be continued to be used, and this target upstream road is called a stable upstream road; or, when comparing to an upstream road with a higher level than the preset level of the newly-built branch road, a stable upstream road still cannot be obtained; wherein, the first target upstream road is the direct upstream road of the newly-built branch road; If a stable upstream road cannot be obtained when comparing upstream roads with a higher level than the preset level of the newly created branch road, the historical traffic flow change patterns of each road will be recalculated; After obtaining the stable upstream road, the historical flow rate change law of each downstream road of the stable upstream road is obtained by statistically obtaining the daily flow rate of each downstream road, and then using the ratio of daily flow rate between downstream roads of the same level as the basis for division, and diverting the historical daily flow rate of the previous level to obtain the historical daily flow rate of the downstream roads. Thus, based on the historical daily flow rate of the downstream roads, the historical flow rate change law of the downstream roads is obtained.
2. The intelligent street lamp management method according to claim 1, characterized in that: The dynamically controlling the on and off states of the street lights in the section according to the target category and the target's motion trajectory specifically includes: Determine the target's moving direction according to its moving trajectory; When the secondary street lamp identifies the target category as a pedestrian, the target location obtained by the last monitoring is used as the center of the circle, and a circular area is formed with the center of the circle and the preset radius; All first subsections in the section that intersect with the circular area are obtained, and the secondary street lights send dynamic opening instructions to the street lights on the target side in each first subsection; wherein, the area between every two key positions that are closest to each other is taken as a subsection, and the key positions are corresponding crosswalks or intersections. When the corresponding street light receives the dynamic opening instruction, the street light turns on and lasts for a preset time before returning to normal.
3. The intelligent street lamp management method according to claim 2, characterized in that: The method further comprises: When it is determined that the circular area includes the first edge of the segment where the target is located, and the moving direction of the target is toward the first edge, then finding the first segment adjacent to the first edge; The secondary street lights in the target section send circular area related information to the secondary street lights in the first section, so that the first section can pre-turn on the street lights in each subsection of the first section that intersects the circular area according to the circular area related information.
4. The intelligent street lamp management method according to claim 1, characterized in that: When the energy saving level is level 1, the on and off states of the street lights in the section are dynamically controlled according to the target category and the target's motion trajectory, and further include: According to the target's motion trajectory, determine the target's motion direction and speed; When the secondary street light recognizes that the target category is a non-motor vehicle, and it is determined that the street light on the side where the non-motor vehicle is located is in the off state, the target position obtained by the last monitoring is used as the center of the circle, and the radius is determined according to the moving speed of the target, and a circular area is formed with the center of the circle and the radius; All first subsections in the section that intersect with the circular area are obtained, and the secondary street lights send dynamic opening instructions to the street lights on the target side in each first subsection; wherein the area between every two key positions that are closest to each other is taken as a subsection, and the key positions are the corresponding crosswalks or intersections. When the corresponding street lights receive the dynamic opening instructions, the street lights are turned on and remain on for a preset time before returning to normal.
5. The intelligent street lamp management method according to claim 4, characterized in that: The method further comprises: When the camera at the corresponding position recognizes that the non-motor vehicle is moving to the opposite side of the road, dynamic opening instructions are sent alternately to the street lights on both sides of the road and within a preset range from the position of the non-motor vehicle.
6. The intelligent street lamp management method according to claim 1, characterized in that: Before issuing the energy-saving level to the primary street lamps on each road according to the daily traffic conditions of each road, the method further includes: The central control platform receives weather forecast information from third-party meteorological agencies; When it is confirmed according to the weather forecast information that bad weather occurs in the area where the corresponding road is located in the current period, the energy saving level of the street lamps on the road is determined to be level 3; the bad weather includes one or more of foggy weather, rainy and snowy weather and haze weather.
7. The intelligent street lamp management method according to claim 1, characterized in that: According to the traffic conditions of each road on that day, the energy saving level is issued to the first-level street lights of each road, specifically including: When the daily traffic volume of the corresponding road is greater than the first preset traffic volume, the energy saving level is issued to the road as level 3; When the daily traffic volume of the corresponding road is less than or equal to the first preset traffic volume, and the daily traffic volume is greater than the second preset traffic volume, the energy saving level is issued to the road as level 2; When the daily traffic situation of the corresponding road is less than or equal to the second preset traffic situation, the energy saving level sent to the road is level 1.
8. The intelligent street lamp management method according to claim 1, characterized in that: When it is determined that the energy-saving level of the corresponding road is level 1, the daily traffic on both sides of the road is analyzed separately, and the relevant information on the side with large daily traffic is sent to the first-level street lights of the road, so that the first-level street lights can turn on the street lights on the side with large daily traffic at intervals and turn off the street lights on the side with small daily traffic.
9. An intelligent street light management device, characterized in that: include: at least one processor; And, a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the processor to execute the intelligent street light management method described in any one of claims 1-8.