Intelligent street lamp control method
A control method and technology for smart street lamps, applied in energy-saving control technology, electrical components, etc., can solve the problems of high cost and inaccurate identification of complex scenes, and achieve the effect of low cost
Active Publication Date: 2021-04-16
FENGHUO COMM SCI & TECH CO LTD
30 Cites 2 Cited by
AI-Extracted Technical Summary
Problems solved by technology
[0005] Aiming at one of the defects existing in the prior art, the purpose of this application is to provide a smart street lamp control method to solve the problem...
Method used
[0133] The control system of this embodiment is applicable to each of the above-mentioned control methods. Through the combination of an intelligent gateway, a non-intelligent camera and an environmental sensor, it is possible to complete the targeted lighting control of street lamps at night for different targets, realize cost disclosure, and control respo...
Abstract
The invention discloses an intelligent street lamp control method, and relates to the technical field of urban lighting. The method comprises the following steps that: according to road monitoring information, a target on a monitored road section, a street lamp to which the position of the target belongs, and a relative position of the target and the street lamp to which the target belongs are acquired, wherein the target can be a person or a vehicle; the moving speed of the target is calculated; when the moving speed is not zero, the street lamp to which the target belongs is controlled to be turned on through a gateway, and when the target exceeds the preset range of the street lamp to which the target belongs, the next street lamp on the moving route of the target is controlled to be turned on through the gateway, wherein the preset range is smaller than the illumination range of the street lamp; when the moving speed is zero, if the target is a person or the target is a vehicle with a person therein, the street lamp to which the target belongs is controlled to be turned on; and otherwise, the street lamp to which the target belongs is controlled to be turned off. According to the invention, different control over the street lamp is achieved according to different targets and moving speeds of the targets, the most reasonable and economical lighting mode can be adopted for the street lamp under different conditions, and the implementation cost is low.
Application Domain
Electrical apparatusEnergy saving control techniques
Technology Topic
Automotive engineeringIllumination Technique +2
Image
Examples
- Experimental program(1)
Example Embodiment
[0044] In order to make the purpose, technical solution and advantages of the present application clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. 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 constitute a conflict with each other.
[0045] The embodiment of the present application provides a smart street lamp control method, which can solve the problems in related technologies that the implementation cost of street lamp control is high, and it is impossible to accurately identify and control street lamps in relatively complex scenes.
[0046] like figure 1 As shown, the smart street lamp control method of the embodiment of the present application includes the steps of:
[0047] S1. According to the road monitoring information, obtain the target on the monitored road section, the street light to which the target is located, and the relative position between the target and the street light to which it belongs; the above targets include people and vehicles.
[0048] Among them, a camera can be mounted on the light pole of the first smart street lamp in the monitored road section, so as to obtain road monitoring information through the camera and complete the monitoring of the road section.
[0049] S2. Calculate and obtain the moving speed of the above target according to the road monitoring information.
[0050] In this embodiment, an associated event can be generated according to the target and its moving speed. Among them, when the moving speed of the target is not zero, the associated events include the event of people not staying and the event of not stopping the car; when the moving speed of the target is zero, if the target is a person, then the associated event is a person staying event, and if the target is a car, Then the related events include the event that the car stays with people in the car and the event that the car stops with no one in the car.
[0051] S3. When the above-mentioned moving speed is not zero, control the street light of the above-mentioned target to turn on through the gateway, and when the above-mentioned target exceeds the preset range of the street light to which it belongs, control the next street light on the moving route of the above-mentioned target to turn on through the gateway; the above-mentioned street light The preset range is smaller than the lighting range of the street lamp, so that the next street lamp can be controlled in advance.
[0052]Optionally, for different moving speed ranges, the preset range of the associated street lamp is different. When the moving speed is higher, the preset range of the associated street lamp is smaller; when the moving speed is lower, the preset range of the associated street lamp is larger.
[0053] S4. When the above-mentioned moving speed is zero, if the above-mentioned target is a person, or if the target is a car and there are people in the car, control the street light of the target through the gateway to turn on; otherwise, when the target is a car and there is no one in the car, control it through the gateway The target's own street light is turned off.
[0054] In the control method of this embodiment, when the moving speed of the target is not zero, the street light to which the target belongs is turned on, and when the target exceeds the preset range of the street light to which the target belongs, the next street light on the moving route of the target is turned on; when the moving speed of the target When it is zero, if the target is a person, or if the target is a car and there are people in the car, the street light belonging to the control target is turned on; otherwise, the street light belonging to the control target is turned off. Therefore, different control of the street light is realized for different targets and their moving speeds , so that street lamps can adopt the most reasonable and economical lighting mode in different situations, and at the same time, it is not necessary to configure a collection device on each street lamp, so the realization cost is low.
[0055] On the basis of the previous embodiment, in this embodiment, when the gateway connected to the next street lamp of the above-mentioned target movement route is different from the gateway connected to the street lamp to which it belongs, the gateway connected to the street lamp to which it belongs sends a control command to the next street lamp The connected gateway, the above control command is used to trigger the gateway connected to the next street light to control the next street light to turn on. Therefore, each monitoring road section is provided with an intelligent gateway, and the gateways of adjacent monitoring road sections can be connected by communication.
[0056] Wherein, when any street lamp is controlled to be turned on and off at the same time, the street lamp is turned on.
[0057] On the basis of the above embodiments, in this embodiment, when the above moving speed is zero, it also includes:
[0058] Determine whether the next street light of the street light to which the target belongs is turned on, and if so, control the next street light to turn off. Specifically, if the moving speed of the target acquired last time is not zero, and the next street light on the target's moving route has been pre-turned on, then the pre-turned street light needs to be controlled to turn off after the current target's moving speed is zero.
[0059] On the basis of the second embodiment, in this embodiment, before turning on the next street light of the control target moving route in the above step S3, the serial number of the above-mentioned next street light is also acquired. Wherein, obtaining the serial number of the above-mentioned next road lamp specifically includes:
[0060] Firstly, the moving route of the above-mentioned target is predicted, and it is judged whether there is a route table corresponding to the above-mentioned moving route.
[0061] If there is a route table corresponding to the moving route, it is then judged whether there is a next street lamp of the moving route in the route table; the route table stores the numbers and control parameter information of the street lamps passed by the moving route.
[0062] When the above-mentioned route table exists and the above-mentioned next road lamp exists in the route table, the number of the above-mentioned next road lamp can be obtained from the route table; , the number of the next street lamp is calculated according to the relative position of the target and the street lamp to which it belongs and the map information preset by the gateway.
[0063] Among them, if the target route changes, it is necessary to update and confirm the target route in time, so as to quickly obtain the number of the next street lamp on the new moving route, and control the shutdown of street lamps that are mistakenly turned on.
[0064] When the target passes through the intersection, the gateway matches the extracted position, speed and direction information of the person or vehicle with the data in the route table. If the match is successful, it will directly obtain the information of the next street light in the route table; The information is compared with the light pole map information in the gateway. The light pole map information includes the position of the light pole and the lighting area of the street light, and calculates the next street light that the target will pass in the current position, speed, and direction, so that the street light can be turned on in advance , to ensure the lighting requirements when the target passes through the intersection.
[0065] On the basis of the above-mentioned embodiment, in this embodiment, after the above calculation of the number of the next road lamp, it also includes:
[0066] When the above-mentioned next road lamp does not exist in the above-mentioned route table, update the parameter information of the above-mentioned next road lamp into the above-mentioned route table.
[0067] When the route table does not exist, create a new route table, and enter the parameter information of the above-mentioned street lamp and the next street lamp, so that when the next target passes by, the number and parameter information of the next street lamp can be quickly obtained from the route table. The next street lights are controlled.
[0068] In this embodiment, an environmental sensor can also be mounted on the light pole of any smart street lamp in the monitored road section, and the environmental temperature, humidity and light intensity information of the currently monitored road section can be collected through the environmental sensor. Before any street lights are turned on, also include:
[0069] Firstly, the environmental light intensity when the street light is not turned on is obtained through the environmental sensor, and the light intensity range of the street light is determined according to the road lighting illuminance standard, the installation position of the environmental sensor, and the relative position between the street light and the environmental sensor.
[0070] Then, according to the dimming level and parameter information of the current street light, as well as the relative position with the environment sensor, the illumination intensity of the street light after the street light is turned on can be calculated. The illumination intensity of the street light is the illumination value from the light to the environment sensor.
[0071] Finally, the sum of the street light intensity and the ambient light intensity is used as the road light intensity after the street light is turned on to determine whether the road light intensity is within the light intensity range. If so, the follow-up can be directly based on the stored dimming level and parameter information of the street light Control, otherwise, adjust and calculate the dimming level and parameter information of the street lamp until the road light intensity is within the light intensity range, and update the calculated dimming level and parameter information to the route table to turn on the street light .
[0072] In other embodiments, the dimming level and parameter information corresponding to the ambient light intensity can also be directly stored in the street lamp, so that when the ambient light intensity obtained by the environmental sensor matches the stored ambient light intensity when the street lamp is not turned on, the Obtain the corresponding dimming level and parameter information for control to ensure that the road light intensity after the street light is turned on is within the corresponding light intensity range.
[0073] As shown in Table 1-3 below, the light intensity range is affected by the installation location of the environmental sensor, the installation location and model of the street lamp, and the type of road. Therefore, the intensity range needs to be determined in specific projects, that is, the height of the light pole and lamp parameters, and the environmental sensor. After the location is determined, it is calculated and determined according to the road type, so as to assign different illumination requirements according to the attributes of the road section where the street lamp is located.
[0074] Table 1 Lighting standards for different road types
[0075]
[0076] Table 2 Lighting Standards for Road Intersection Areas
[0077]
[0078] Table 3 Sidewalk Lighting Standards
[0079]
[0080] In this embodiment, after any street lamp is turned on, it also includes:
[0081] First, the road light intensity after the street light is turned on is obtained through the environmental sensor. When the above road light intensity exceeds the corresponding light intensity range, it indicates that the ambient light intensity at this time has changed, and the dimming level and parameter information of the street light need to be automatically adjusted. Adjust until the above-mentioned light intensity of the road is within the above-mentioned range of light intensity.
[0082] Subsequently, the changed ambient light intensity and corresponding dimming level and parameter information can also be updated to the above route table, so that the parameter information can be directly extracted for street lamp control next time when the street lamp is turned on.
[0083] Further, in the above step S1, after acquiring the street lights at the location of the target, it further includes: controlling the previous street lights of the street lights on the moving route of the target to turn off.
[0084] In this embodiment, when any street lamp is turned on, the flag bit is set for the street lamp; when the street lamp is turned off, the corresponding flag bit is cleared.
[0085] Among them, when the owner or car triggers to control the street light to turn on, it will record the sign position under the corresponding street light, and clear the sign position of the street light when the trigger person or car moves away from the street light monitoring area.
[0086] On the basis of the above embodiment, in this embodiment, in the above step S1, according to the road monitoring information, the target on the monitored road section and the street lamp to which the target is located are obtained, specifically including:
[0087] First, the video stream information of road monitoring is collected by the camera of the monitoring road section and sent to the corresponding gateway. After the gateway obtains the video stream information, it extracts the frame image from the above video stream information as the current frame image.
[0088] Then, image recognition is performed, that is, the feature information set of each target and each street lamp is obtained from the above-mentioned current frame image, and the relative position between each target and each street lamp is determined, and the street lamp to which each target is located is determined.
[0089] Finally, the gateway can calculate and obtain the number of the street lamp where the pedestrian is driving according to the latitude and longitude of the camera, the overall light pole map information, and the shooting direction, height, and elevation angle information of the camera. Wherein, the relative position between the target and the street lamp to which it belongs can also be determined through the current frame.
[0090] Further, the calculation of the moving speed of the target in the above step S2 specifically includes:
[0091] Firstly, the feature information set of each target and each street lamp, and the relative positions between each target and each street lamp are acquired from the previous frame image of the above current frame image.
[0092] Wherein, the previous frame image is extracted by the gateway from the previous video stream information sent by the camera.
[0093] Then, compare the feature information sets of the target in the current frame image and the previous frame image, and determine that the target with the same feature information in the two feature information sets is the same target.
[0094] Finally, the change amount of the relative position of the same target is obtained, and the moving speed of the same target is calculated according to the change amount of the relative position.
[0095] This embodiment also provides a smart street lamp control system, which includes a plurality of control subsystems, each control subsystem respectively controls its corresponding monitoring road section, and each monitoring road section is equipped with a plurality of smart street lamps, and the smart street lamp has Dimming function. The control subsystem mentioned above includes gateways, cameras and environmental sensors.
[0096] like figure 2 As shown, in this embodiment, a high-resolution camera and an environmental sensor can be mounted on the light pole of the first smart street lamp of the monitoring road section, so that the road monitoring information can be obtained through the camera, and the monitoring of the road section can be completed. Monitoring, through the environmental sensor to collect the environmental temperature, humidity and light intensity information of the currently monitored road section. Among them, the gateway of each monitoring road section is connected to the environmental sensors, cameras and smart street lights of the monitoring road section through the network.
[0097] Optionally, the gateway is connected to the environmental sensors, cameras and smart street lights of the monitoring section through 485 communication lines.
[0098] In this embodiment, each gateway includes an image processing module and a control module.
[0099]The image processing module is used to obtain the video stream information of road monitoring and process the video stream information to obtain the target on the monitored road section, the street light where the target is located, and the relative position between the target and the street light to which it belongs, and calculate the target's The moving speed, and then the associated event generated according to the moving speed, and information such as the generated associated event, the target moving speed, and the number of the light pole to which it belongs are sent to the control module of the gateway.
[0100] The above control module is used to control the street lights based on the information sent by the image processing module.
[0101] If the image processing module of the gateway does not obtain the signal of a person or a car during the image recognition process, it sends a signal that the number of people and cars on the monitoring section is 0 to the control module of the gateway. The control module controls all street lamps on the monitored road section to be turned off.
[0102] The above control module is used to control the street lights based on the information sent by the image processing module.
[0103] like image 3 As shown, the image processing module of this embodiment performs frame image processing process specifically includes:
[0104] A1. Get the current frame image;
[0105] A2. Determine whether there is a target in the current frame image, if so, turn to A3, otherwise, send no target information to the control module of the gateway.
[0106] A3. Obtain the feature information set of each target and each street lamp from the current frame image, and the relative position between each target and each street lamp, and determine the street lamp to which each target is located;
[0107] A4. According to the latitude and longitude of the camera, the overall light pole map information, and the shooting direction, height, and elevation angle information of the camera, calculate and obtain the number of the street light to which each target belongs, and determine the relative position of each target to the street light to which it belongs;
[0108] A5. Obtain the feature information set of each target and each street lamp from the previous frame image of the current frame image, and the relative position between each target and each street lamp;
[0109] A6. Compare the feature information sets of the target in the current frame image and the previous frame image, and determine that the target with the same feature information in the two feature information sets is the same target.
[0110] A7. Calculate the moving speed of the same target according to the variation of the relative position of the same target, generate an associated event, and send the generated associated event, the moving speed of the target, and the number of the street light to which it belongs to the control module.
[0111] In this embodiment, if the target only appears in the current frame image but not in the previous frame image, it is judged that the target has just entered the current monitoring area, and it needs to wait for the next frame image for processing. Wherein, if the target only appears in the previous frame but not in the current frame, it is judged that the target has just left the current monitoring area.
[0112] like Figure 4 As shown, the process for the control module of this embodiment to control street lamps specifically includes:
[0113] B1. Receive and analyze the information sent by the image processing module;
[0114] B2. Determine whether there is a target on the monitoring section, if so, turn to B5; otherwise, turn to B3.
[0115] B3. By inquiring whether each street lamp has a sign position, it is judged whether all the street lamps in the monitored road section are turned off, if so, turn to B1; otherwise, turn to B4.
[0116] B4. Control the unturned street lights to turn off, clear the corresponding flags, and turn to B1.
[0117] B5. Determine whether the moving speed of the target is zero, if so, turn to B6, otherwise, turn to B12.
[0118] B6. Determine whether the associated event with a moving speed of zero is a car stop with no one in the car event, if so, turn to B8; otherwise, turn to B7 if it is a person stop event, or a car stop with someone in the car event.
[0119] B7. Turn on the street lamp to which the control target belongs, set a flag for the street lamp, and turn to B9.
[0120] B8. Turn off the street lights belonging to the control target, and clear the corresponding flags;
[0121] B9. Determine whether the next street light of the street light to which it belongs is turned on, if so, turn to B10, otherwise, turn to B11.
[0122] B10. Control the next road light to turn off, and clear the corresponding flag;
[0123] B11. Control the previous street lights of the street lights on the target moving route to turn off, clear the corresponding flags, and turn to B1.
[0124] B12. Turn on the street lamp to which the control target belongs, and set a flag for the street lamp;
[0125] B13. Judging whether the target exceeds the preset range of the street light to which it belongs, if so, turn to B14, otherwise, turn to B1;
[0126] B14. Determine whether there is a route table corresponding to the moving route; if so, turn to B15; otherwise, turn to B18.
[0127] B15. Judging whether there is a next street light on the moving route in the route table, if so, turn to B16, otherwise, turn to B17.
[0128] B16. Obtain the number of the above-mentioned next road lamp from the route table, and turn to B19.
[0129] B17. Calculate and obtain the number of the next street light according to the relative position of the target and the street light and the preset map information, update the parameter information of the next street light into the route table, and turn to B19.
[0130] B18. Calculate and obtain the number of the next street light according to the relative position of the target and the street light and the preset map information, create a new route table, and enter the parameter information of the street light and the next street light;
[0131] B19. Control the turn on of the next road light on the moving route of the target, set a flag for the street light, and turn to B11.
[0132] In this embodiment, after any street light is turned on, the control module can also obtain the road light intensity after the street light is turned on through the environmental sensor, so as to judge whether the current dimming level and parameter information are valid, and whether the actual illuminance on site meets the requirements. When the above-mentioned light intensity of the road exceeds the above-mentioned light intensity range, the parameter information of the street light is adjusted until the above-mentioned light intensity is within the above-mentioned intensity range. Then, the adjusted parameter information is updated to the above route table, so that the parameter information can be directly extracted to control the street lamp next time when the street lamp is turned on.
[0133] The control system of this embodiment is applicable to the above-mentioned control methods. Through the combination of intelligent gateways, non-intelligent cameras and environmental sensors, it can complete the targeted lighting control of street lights at night for different targets, realize cost disclosure, and control responses in a timely manner. It can automatically modify the dimming level and parameter information of street lights, without human intervention, to ensure the accuracy of street light intensity. It is more suitable for campuses, parks and other scenes with open-air parking lots, and the related scene control is more refined. And more energy-saving.
[0134] The present application is not limited to the above-mentioned embodiments. For those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also considered protection of the present invention. within range. The content not described in detail in this specification belongs to the prior art known to those skilled in the art.
PUM
Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Similar technology patents
Apparatus and method for low-density cellular wood plastic composites
Owner:STRANDEX CORP
OLED apparatus having improved fault tolerance
Owner:GLOBAL OLED TECH
Preparing method of bamboo fiber winding composite tube
Owner:XINJIANG GUANGSHUI PIPE
Classification and recommendation of technical efficacy words
- low cost
Method, apparatus and article for microfluidic control via electrowetting, for chemical, biochemical and biological assays and the like
Owner:KECK GRADUATE INST OF APPLIED LIFE SCI
System and method for transmitting wireless digital service signals via power transmission lines
Owner:NEXTEL COMMUNICATIONS
System and method for determination of position
Owner:STEELE CHRISTIAN
Antenna device and method for attaching the same
Owner:NEC CORP