Street lamp intelligent control method and system based on data feedback and storage medium

Abstract

The invention discloses a street lamp intelligent control method and system based on data feedback and a storage medium, and relates to the field of urban road illumination, and the method comprises the steps: determining the preset turn-on and turn-off time of a street lamp according to meteorological information; after the preset turn-on time is up, determining the reference illumination intensity after the street lamp is turned on according to the meteorological visibility information and the environment illumination intensity; real-time traffic information of a road section where the street lamp is located is monitored, and the illumination intensity of the current street lamp is dynamically adjusted according to the information; and after the preset turn-off time is reached, determining the specific turn-off time according to the meteorological visibility information and the environment illumination intensity. The on-off time of the street lamp is determined according to the real-time weather information, after the street lamp is turned on, the reference illumination intensity of the street lamp is determined in combination with the weather visibility level and the environment illumination intensity, the illumination intensity of the street lamp is dynamically adjusted according to the real-time traffic information, the road illumination quality in bad weather is guaranteed, and the road illumination efficiency is improved. And electric energy is greatly saved.

Description

Technical Field

[0001] The present invention relates to the technical field of urban road lighting, and in particular to a street lamp intelligent control method, system and storage medium based on data feedback. Background Art

[0002] With the development of social economy and the continuous improvement of urbanization level, the number of urban road construction is also increasing. As a necessary public facility in urban road construction, the effective control of road lighting system is also related to the vital interests of urban residents. Rational control of lighting system can save energy and improve the utilization rate and lighting effect of lighting facilities such as street lamps, and protect the health of residents traveling at night.

[0003] However, the existing road lighting solutions have the following problems: first, the opening and closing times of road lamps are basically fixed, and are not adjusted according to the specific sunrise and sunset information. Turning on too early or turning off too late will lead to a waste of electricity resources. Turning on too late or turning off too early will lead to insufficient road brightness, affecting normal vehicle driving. Second, the brightness of road lamps remains unchanged after being turned on. There is no way to adjust the brightness of road lamps according to current meteorological visibility, ambient light and real-time traffic information, resulting in the road lighting brightness not meeting the standard in bad weather conditions, which may cause traffic accidents. Summary of the invention

[0004] In order to solve the above technical problems, a method, system and storage medium for intelligent control of street lamps based on data feedback are provided. This technical solution solves the problems proposed in the above background technology, such as the waste of electric power resources and insufficient road lighting brightness affecting the normal driving of vehicles due to the fixed opening time of street lamps and the inability to adjust the brightness in real time.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A street lamp intelligent control method based on data feedback, comprising:

[0007] Obtain real-time weather information in the area, and determine the scheduled opening and closing times of street lights in the current area based on the sunrise and sunset times in the weather information;

[0008] According to the real-time weather information in the area, obtain the real-time weather visibility information of the current area;

[0009] After the scheduled opening time is reached, the light intensity required to meet the road lighting standards in the area under the current meteorological visibility level is determined based on the real-time meteorological visibility information of the current area;

[0010] Calculate the ambient light intensity at the location of the street lamp, adjust the reference light intensity of the current street lamp according to the light intensity and ambient light intensity required to meet the road lighting standards in the area at this time, use this reference light intensity as the initial light intensity of the street lamp, and turn on the street lamp;

[0011] Monitor the real-time traffic information of the road section where the street lights are located, and adjust the light intensity of the current street lights according to the real-time traffic information;

[0012] After the scheduled closing time is reached, the light intensity required for the area to meet the road lighting standards under the current visibility level is determined based on the real-time meteorological visibility information of the current area, and the ambient light intensity information of the current location of the street lamp is measured. If the ambient light intensity is higher than the required light intensity, the current street lamp is turned off. If the ambient light intensity is lower than the required light intensity, the ambient light intensity information continues to be monitored until it is higher than the required light intensity, and the street lamp is turned off.

[0013] Preferably, the specific method of determining the light intensity required for the area to meet the road lighting standard at the current visibility level according to the meteorological visibility information in the real-time meteorological information in the area is:

[0014] According to the urban road lighting design standards, determine the standard light intensity of road lighting in the area;

[0015] Determine the calculation formula of the influence coefficient of meteorological visibility on the illumination intensity in the area according to the meteorological visibility level, street light illumination intensity, road brightness coefficient and road brightness information in the historical data, and substitute the current meteorological visibility value into the formula to obtain the influence coefficient at this time;

[0016] Using Formula E 0 = E × K to calculate the light intensity required to meet the road lighting standards under the current meteorological visibility level;

[0017] In the formula, E 0 is the standard illumination intensity of road lighting in the area, K is the influence coefficient of meteorological visibility on the illumination intensity in the area, and E is the illumination intensity required to meet the road lighting standard in the area under the current meteorological visibility level.

[0018] Preferably, adjusting the reference illumination intensity of the current street lamp according to the illumination intensity and ambient illumination intensity required to meet the road lighting standard in the area under the current visibility level specifically includes:

[0019] After the street lights are turned on, a round of ambient light intensity measurement is performed every 15 minutes, with 10 measurements per round and an interval of 20 seconds between each round.

[0020] Obvious outliers are removed from the 10 measured data, and the remaining data are used as the real-time data set. The average value of these values ​​is calculated as the real-time ambient light intensity during the period.

[0021] The reference light intensity of the current street lamp is calculated based on the real-time ambient light intensity of the time period and the light intensity required for the area to meet the road lighting standard determined according to the meteorological visibility. If the reference light intensity value is less than 0, the reference light intensity value is set to 30% of the light intensity value required for the road;

[0022] The calculation formula of the reference illumination intensity of the street lamp is:

[0023]

[0024] Where E is the light intensity value required for the area to meet the road lighting standard determined according to meteorological visibility, B is the real-time light intensity value, K is the influence coefficient of meteorological visibility on the light intensity in the area, and L is the obtained street lamp benchmark light intensity value.

[0025] Preferably, the specific method of adjusting the illumination intensity of the current street lamp according to the real-time traffic information is:

[0026] Obtain the street lamp benchmark light intensity value, and take 50% of it as the street lamp energy-saving light intensity value;

[0027] The street lamp uses the reference light intensity as the initial light intensity for road lighting;

[0028] Monitoring the street lamp area based on the motion sensor to obtain regional monitoring information, wherein the regional monitoring information is related information of the moving target obtained by monitoring the moving target within the monitoring range of the street lamp;

[0029] According to the regional monitoring information, determine whether there is a moving target within the monitoring range of the street lamp. If so, cancel the timing and analyze the moving direction of the moving target; if not, the street lamp maintains the current state unchanged;

[0030] According to the regional monitoring information, the moving direction of the moving target is analyzed. If the moving direction is away from the current street lamp, the timer is started after the moving target leaves the lighting range of the street lamp, and the light intensity of the current street lamp is adjusted to the energy-saving light intensity after the timer returns to zero. If the moving direction is close to the current street lamp, the street lamp light intensity is adjusted to the benchmark light intensity.

[0031] Preferably, the method for obtaining the street lamp monitoring range is:

[0032] Acquire street light parameter information, wherein the street light parameter information includes street light fixture specification information and street light installation information;

[0033] According to the street lamp parameter information, obtain the lighting radius of the street lamp;

[0034] Assume that the vehicle travels at the maximum speed limit of the road, and the distance traveled by the vehicle in 10 seconds is taken as the buffer distance;

[0035] The sum of the lighting radius and the buffer distance is used as the monitoring radius of the street lamp;

[0036] Based on the monitoring radius, a street lamp monitoring area is obtained, where the street lamp monitoring area represents a circular area with the street lamp position as the center and the monitoring radius as the radius;

[0037] The overlapping area of ​​the street light monitoring area and the road where the street light is located is taken as the monitoring range of the street light.

[0038] Preferably, the specific method for determining whether the moving target is within the monitoring range of the street lamp and determining the moving direction of the moving target is:

[0039] Use the motion sensor to send two pulse signals to the moving target. The time of the two pulse signals is m. 1 and n 1 ;

[0040] The motion sensor receives the pulse signal reflected by the moving target, and the time for the two pulse signals to return is m. 2 and n 2 ;

[0041] If m 2 -m 1 The value is less than n 2 -n 1 If the value of m is 2 -m 1 The value is greater than n 2 -n 1 If the value of is too high, it means that the moving target is approaching the street lamp;

[0042] Based on the pulse emission time m 1 and the pulse return time m 2 , obtain the distance between the moving target and the street lamp. If the distance is less than the monitoring radius of the street lamp, it means that the moving target is within the monitoring range of the street lamp;

[0043] Among them, the calculation formula for the distance between the moving target and the street lamp is:

[0044]

[0045] In the formula, c represents the speed of light, m 1 is the emission time of the first pulse, m 2is the return time of the first pulse, and the obtained value d is the distance of the moving target from the street lamp when the pulse is emitted.

[0046] Preferably, the method for adjusting the street light illumination intensity specifically includes:

[0047] Determine the minimum contrast between street light intensity and ambient light intensity to be 0.4;

[0048] After the moving target enters the monitoring range, the contrast between the street light intensity and the ambient light intensity is calculated to determine whether it is lower than the minimum contrast. If so, the street light intensity is adjusted until the contrast between the street light intensity and the ambient light intensity is not lower than the minimum contrast.

[0049] Keep the contrast between street light intensity and ambient light intensity not less than the minimum contrast, and gradually increase the street light intensity to the benchmark light intensity within the buffer distance by 10% of the benchmark light intensity;

[0050] After the moving target leaves the lighting range, based on the timer set on the street lamp, after the timer returns to zero, the street lamp illumination intensity is reduced by 10% of the reference illumination every 1 second until it is reduced to the energy-saving illumination intensity after 5 seconds;

[0051] Among them, the contrast calculation formula of street light illumination intensity and ambient light intensity is:

[0052]

[0053] Where, L o is the street light intensity, L b is the ambient light intensity, and the result C is the contrast between the street light intensity and the ambient light intensity.

[0054] Preferably, the specific method of setting the timer is:

[0055] Set an initial timing time, an exponential factor, a maximum timing time, and a timing time adjustment number;

[0056] Set the timer of the street light to the initial time;

[0057] According to the monitoring information, determine whether there is a moving target within the monitoring range during the timing time. If so, adjust the light intensity of the current street lamp to the reference light intensity and cancel the timing. If a moving target is detected within the monitoring range of the street lamp before the timer returns to zero for three consecutive times, calculate the next timing time according to the exponential backoff algorithm based on the current timing time, exponential factor and the number of timing time adjustments, and add 1 to the number of timing time adjustments. If not, adjust the light intensity of the current street lamp to the energy-saving light intensity and keep the next timing time unchanged;

[0058] Get the next timing time and determine whether it exceeds the maximum timing time. If so, use the maximum timing time as the next timing time. Determine whether there is a moving target within the monitoring range during the timing time based on the monitoring information. If so, adjust the light intensity of the current street lamp to the reference light intensity and cancel the timing. If not, adjust the light intensity of the current street lamp to the energy-saving light intensity, set the next timing to the initial timing time, and reset the timing time adjustment times to zero.

[0059] The calculation formula for obtaining the next timing time according to the exponential backoff algorithm based on the current timing time, the exponential factor and the number of timing time adjustments is:

[0060] T 2 =T 1 ×a i

[0061] Where, T 1 is the current timing time, a is the exponential factor, i is the number of times the timing time is adjusted, T 2 The next scheduled time.

[0062] Furthermore, a street lamp intelligent control system based on data feedback is proposed, which is used to implement a street lamp intelligent control method based on data feedback as described above, and the system includes a data input unit, a light intensity determination unit, a light intensity adjustment unit and a control center;

[0063] The data input unit is used to receive weather information from the control center, including the sunrise and sunset information of the day and real-time weather visibility information;

[0064] The illumination intensity determination unit is used to determine the illumination intensity of the street lamps in the current area according to the current real-time meteorological visibility information and the real-time ambient illumination intensity information in the area after the scheduled opening time of the street lamps on the day is reached;

[0065] The illumination intensity adjustment unit is used to adjust the illumination intensity of the street lamp in real time according to the traffic information of the road section;

[0066] The control center communicates directly with the street lamps to perform real-time information transmission and real-time control of the street lamps.

[0067] Optionally, the illumination intensity determination unit includes a road required illumination intensity calculation unit, an ambient illumination intensity measurement unit, and a street light illumination intensity calculation unit;

[0068] The road required illumination intensity calculation unit is used to determine the illumination intensity required to meet the road lighting standard in the area at this time according to the real-time meteorological visibility information of the current area;

[0069] The ambient light intensity calculation unit is used to calculate the ambient light intensity information at the location of the street lamp;

[0070] The street light illumination intensity calculation unit is used to determine the reference illumination intensity of the street light according to the illumination intensity information required to meet the road lighting standard in the area and the ambient illumination intensity information of the location of the street light.

[0071] Optionally, the illumination intensity adjustment unit includes a traffic monitoring unit and a street light illumination intensity adjustment unit;

[0072] The traffic monitoring unit monitors the road section where the street lamp is located in real time through the motion sensor, and sends the real-time data of the moving target within the monitoring range to the street lamp illumination intensity adjustment unit;

[0073] The street light illumination intensity adjustment unit performs real-time adjustment of the street light illumination intensity according to the real-time data sent by the traffic monitoring unit.

[0074] Furthermore, a computer-readable storage medium is proposed, on which a computer-readable program is stored. When the computer-readable program is called, it executes the above-mentioned intelligent control method of street lamps based on data feedback.

[0075] Compared with the prior art, the present invention has the following beneficial effects:

[0076] The present invention provides an intelligent street lamp control method based on data feedback. The method determines the scheduled turning on and off time of the street lamp in the current area by obtaining the sunrise and sunset times in the meteorological information of the area where the street lamp is located, so as to prevent the waste of power resources caused by the street lamp being turned on too early or turned off too late, and the insufficient road lighting brightness caused by the street lamp being turned on too late or turned off too early, which affects the normal driving of vehicles; and determines the reference light intensity required for the street lamp according to the real-time meteorological visibility information and ambient light intensity information of the current area after the scheduled turning on time is reached, so as to prevent the street lamp from being too bright or too dark and affecting the driver's vision; and at the same time, monitors the traffic information of the road section where the street lamp is located in real time, adjusts the light intensity of the street lamp according to the real-time traffic information, and dims or even turns off the street lamp in time when no car passes through the current road section to save power resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] Figure 1 This is a flow chart of a street lamp intelligent control method based on data feedback according to an embodiment of the present invention;

[0078] Figure 2 A flow chart of determining the required illumination intensity of a road in a current area according to meteorological visibility in a street lamp intelligent control method based on data feedback according to an embodiment of the present invention;

[0079] Figure 3A flowchart of adjusting the current reference light intensity of a street lamp according to the ambient light intensity in a street lamp intelligent control method based on data feedback according to an embodiment of the present invention;

[0080] Figure 4 A flow chart of adjusting the illumination intensity of the current street lamp according to traffic information in a street lamp intelligent control method based on data feedback in an embodiment of the present invention;

[0081] Figure 5 A flow chart of determining whether a moving target is within a street lamp monitoring range and determining a moving direction of the moving target in a street lamp intelligent control method based on data feedback according to an embodiment of the present invention;

[0082] Figure 6 The system block diagram of a street lamp intelligent control system based on data feedback according to an embodiment of the present invention. DETAILED DESCRIPTION

[0083] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0084] Reference Figure 1 As shown, an embodiment of the present invention provides a street lamp intelligent control method based on data feedback, and the method specifically includes the following steps:

[0085] Obtain real-time weather information in the area, and determine the scheduled opening and closing times of street lights in the current area based on the sunrise and sunset times in the weather information;

[0086] According to the real-time weather information in the area, obtain the real-time weather visibility information of the current area;

[0087] After the scheduled opening time is reached, the light intensity required to meet the road lighting standards in the area under the current meteorological visibility level is determined based on the real-time meteorological visibility information of the current area;

[0088] Calculate the ambient light intensity at the location of the street lamp, adjust the reference light intensity of the current street lamp according to the light intensity and ambient light intensity required to meet the road lighting standards in the area at this time, use this reference light intensity as the initial light intensity of the street lamp, and turn on the street lamp;

[0089] Monitor the real-time traffic information of the road section where the street lights are located, and adjust the light intensity of the current street lights according to the real-time traffic information;

[0090] After the scheduled closing time is reached, the light intensity required for the area to meet the road lighting standards under the current visibility level is determined based on the real-time meteorological visibility information of the current area, and the ambient light intensity information of the current location of the street lamp is measured. If the ambient light intensity is higher than the required light intensity, the current street lamp is turned off. If the ambient light intensity is lower than the required light intensity, the ambient light intensity information continues to be monitored until it is higher than the required light intensity, and the street lamp is turned off.

[0091] In this embodiment, the real-time weather information in the area comes from a meteorological unit. The sunrise and sunset times in the weather information change with the seasons. The specific real-time information is transmitted by the control center to the street lamp devices in the area.

[0092] Reference Figure 2 As shown, in this embodiment, the specific method for determining the light intensity required for the area to meet the road lighting standard at the current visibility level according to the meteorological visibility information in the real-time meteorological information in the area is:

[0093] According to the urban road lighting design standards, determine the standard light intensity of road lighting in the area;

[0094] Determine the calculation formula of the influence coefficient of meteorological visibility on the illumination intensity in the area according to the meteorological visibility level, street light illumination intensity, road brightness coefficient and road brightness information in the historical data, and substitute the current meteorological visibility value into the formula to obtain the influence coefficient at this time;

[0095] Using Formula E 0 = E × K to calculate the light intensity required to meet the road lighting standards under the current meteorological visibility level;

[0096] In the formula, E 0 is the standard illumination intensity of road lighting in the area, K is the influence coefficient of meteorological visibility on the illumination intensity in the area, and E is the illumination intensity required to meet the road lighting standard in the area under the current meteorological visibility level.

[0097] Reference Figure 3 As described above, in this embodiment, the reference illumination intensity of the current street lamp is adjusted according to the illumination intensity and ambient illumination intensity required to meet the road lighting standard in the area under the current visibility level, specifically including:

[0098] After the street lights are turned on, a round of ambient light intensity measurement is performed every 15 minutes, with 10 measurements per round and an interval of 20 seconds between each round.

[0099] Obvious outliers are removed from the 10 measured data, and the remaining data are used as the real-time data set. The average value of these values ​​is calculated as the real-time ambient light intensity during the period.

[0100] The reference light intensity of the current street lamp is calculated based on the real-time ambient light intensity of the time period and the light intensity required for the area to meet the road lighting standard determined according to the meteorological visibility. If the reference light intensity value is less than 0, the reference light intensity value is set to 30% of the light intensity value required for the road;

[0101] The calculation formula of the reference illumination intensity of the street lamp is:

[0102]

[0103] Where E is the light intensity value required for the area to meet the road lighting standard determined according to meteorological visibility, B is the real-time light intensity value, K is the influence coefficient of meteorological visibility on the light intensity in the area, and L is the obtained street lamp benchmark light intensity value.

[0104] In this embodiment, if the measurement results of three consecutive rounds of ambient light intensity are not much different, the measurement interval can be adjusted to twice the previous interval until the data shows a significant difference and then the interval is reset to the initial interval.

[0105] Reference Figure 4 The specific method of adjusting the illumination intensity of the current street lamp according to the real-time traffic information in this embodiment is as follows:

[0106] Obtain the street lamp benchmark light intensity value, and take 50% of it as the street lamp energy-saving light intensity value;

[0107] The street lamp uses the reference light intensity as the initial light intensity for road lighting;

[0108] Monitoring the street lamp area based on the motion sensor to obtain regional monitoring information, wherein the regional monitoring information is related information of the moving target obtained by monitoring the moving target within the monitoring range of the street lamp;

[0109] According to the regional monitoring information, determine whether there is a moving target within the monitoring range of the street lamp. If so, cancel the timing and analyze the moving direction of the moving target; if not, the street lamp maintains the current state unchanged;

[0110] According to the regional monitoring information, the moving direction of the moving target is analyzed. If the moving direction is away from the current street lamp, the timer is started after the moving target leaves the lighting range of the street lamp, and the light intensity of the current street lamp is adjusted to the energy-saving light intensity after the timer returns to zero. If the moving direction is close to the current street lamp, the street lamp light intensity is adjusted to the benchmark light intensity.

[0111] In this embodiment, the method for obtaining the street lamp monitoring range is:

[0112] Acquire street light parameter information, wherein the street light parameter information includes street light fixture specification information and street light installation information;

[0113] According to the street lamp parameter information, obtain the lighting radius of the street lamp;

[0114] Assume that the vehicle travels at the maximum speed limit of the road, and the distance traveled by the vehicle in 10 seconds is taken as the buffer distance;

[0115] The sum of the lighting radius and the buffer distance is used as the monitoring radius of the street lamp;

[0116] Based on the monitoring radius, a street lamp monitoring area is obtained, where the street lamp monitoring area represents a circular area with the street lamp position as the center and the monitoring radius as the radius;

[0117] The overlapping area of ​​the street light monitoring area and the road where the street light is located is taken as the monitoring range of the street light.

[0118] In this embodiment, the specific method for adjusting the street light illumination intensity is:

[0119] Determine the minimum contrast between street light intensity and ambient light intensity to be 0.4;

[0120] After the moving target enters the monitoring range, the contrast between the street light intensity and the ambient light intensity is calculated to determine whether it is lower than the minimum contrast. If so, the street light intensity is adjusted until the contrast between the street light intensity and the ambient light intensity is not lower than the minimum contrast.

[0121] Keep the contrast between street light intensity and ambient light intensity not less than the minimum contrast, and gradually increase the street light intensity to the benchmark light intensity within the buffer distance by 10% of the benchmark light intensity;

[0122] After the moving target leaves the lighting range, based on the timer set on the street lamp, after the timer returns to zero, the street lamp illumination intensity is reduced by 10% of the reference illumination every 1 second until it is reduced to the energy-saving illumination intensity after 5 seconds;

[0123] Among them, the contrast calculation formula of street light illumination intensity and ambient light intensity is:

[0124]

[0125] Where, L o is the street light intensity, L b is the ambient light intensity, and the result C is the contrast between the street light intensity and the ambient light intensity.

[0126] In this embodiment, the specific method of setting the timer is:

[0127] Set an initial timing time, an exponential factor, a maximum timing time, and a timing time adjustment number;

[0128] Set the timer of the street light to the initial time;

[0129] According to the monitoring information, determine whether there is a moving target within the monitoring range during the timing time. If so, adjust the light intensity of the current street lamp to the reference light intensity and cancel the timing. If a moving target is detected within the monitoring range of the street lamp before the timer returns to zero for three consecutive times, calculate the next timing time according to the exponential backoff algorithm based on the current timing time, exponential factor and the number of timing time adjustments, and add 1 to the number of timing time adjustments. If not, adjust the light intensity of the current street lamp to the energy-saving light intensity and keep the next timing time unchanged;

[0130] Get the next timing time and determine whether it exceeds the maximum timing time. If so, use the maximum timing time as the next timing time. Determine whether there is a moving target within the monitoring range during the timing time based on the monitoring information. If so, adjust the light intensity of the current street lamp to the reference light intensity and cancel the timing. If not, adjust the light intensity of the current street lamp to the energy-saving light intensity, set the next timing to the initial timing time, and reset the timing time adjustment times to zero.

[0131] The calculation formula for obtaining the next timing time according to the exponential backoff algorithm based on the current timing time, the exponential factor and the number of timing time adjustments is:

[0132] T 2 =T 1 ×a i

[0133] Where, T 1 is the current timing time, a is the exponential factor, i is the number of times the timing time is adjusted, T 2 The next scheduled time.

[0134] In this embodiment, the initial timing time is set to 2s, the exponential factor is set to 2, the maximum timing time is set to 32s, and the timing time adjustment times is set to 0.

[0135] Reference Figure 5 As shown, in this embodiment, the specific method for determining whether a moving target is within the monitoring range of a street lamp and determining the moving direction of the moving target is:

[0136] Use the motion sensor to send two pulse signals to the moving target. The time of the two pulse signals is m. 1 and n 1 ;

[0137] The motion sensor receives the pulse signal reflected by the moving target, and the time for the two pulse signals to return is m. 2 and n 2 ;

[0138] If m 2 -m 1 The value is less than n 2 -n 1 If the value of m is 2 -m 1 The value is greater than n 2 -n 1 If the value of is too high, it means that the moving target is approaching the street lamp;

[0139] Based on the pulse emission time m 1 and the pulse return time m 2 , obtain the distance between the moving target and the street lamp. If the distance is less than the monitoring radius of the street lamp, it means that the moving target is within the monitoring range of the street lamp;

[0140] Among them, the calculation formula for the distance between the moving target and the street lamp is:

[0141]

[0142] In the formula, c represents the speed of light, m 1 is the emission time of the first pulse, m 2 is the return time of the first pulse, and the obtained value d is the distance of the moving target from the street lamp when the pulse is emitted.

[0143] Reference Figure 6 As shown, an embodiment of the present invention further provides a street lamp intelligent control system based on data feedback, wherein the street lamp intelligent control system based on data feedback adopts the above-mentioned street lamp intelligent control method based on data feedback to control street lamp lighting, and the street lamp intelligent control system based on data feedback includes a data input unit, a light intensity determination unit, a light intensity adjustment unit and a control center;

[0144] The data input unit is used to receive weather information from the control center, including the sunrise and sunset information of the day and real-time weather visibility information;

[0145] The illumination intensity determination unit is used to determine the illumination intensity of the street lamps in the current area according to the current real-time meteorological visibility information and the real-time ambient illumination intensity information in the area after the scheduled opening time of the street lamps on the day is reached;

[0146] The illumination intensity adjustment unit is used to adjust the illumination intensity of the street lamp in real time according to the traffic information of the road section;

[0147] The control center communicates directly with the street lamps to perform real-time information transmission and real-time control of the street lamps.

[0148] The illumination intensity determination unit includes a road required illumination intensity calculation unit, an ambient illumination intensity measurement unit and a street lamp illumination intensity calculation unit;

[0149] The road required illumination intensity calculation unit is used to determine the illumination intensity required to meet the road lighting standard in the area at this time according to the real-time meteorological visibility information of the current area;

[0150] The ambient light intensity calculation unit is used to calculate the ambient light intensity information at the location of the street lamp;

[0151] The street light illumination intensity calculation unit is used to determine the reference illumination intensity of the street light according to the illumination intensity information required to meet the road lighting standard in the area and the ambient illumination intensity information of the location of the street light.

[0152] The illumination intensity adjustment unit includes a traffic monitoring unit and a street light illumination intensity adjustment unit;

[0153] The traffic monitoring unit monitors the road section where the street lamp is located in real time through the motion sensor, and sends the real-time data of the moving target within the monitoring range to the street lamp illumination intensity adjustment unit;

[0154] The street light illumination intensity adjustment unit performs real-time adjustment of the street light illumination intensity according to the real-time data sent by the traffic monitoring unit.

[0155] In one embodiment of the present invention, a computer-readable storage medium is further provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented:

[0156] Obtain real-time weather information in the area, and determine the scheduled opening and closing times of street lights in the current area based on the sunrise and sunset times in the weather information;

[0157] According to the real-time weather information in the area, obtain the real-time weather visibility information of the current area;

[0158] After the scheduled opening time is reached, the light intensity required to meet the road lighting standards in the area under the current meteorological visibility level is determined based on the real-time meteorological visibility information of the current area;

[0159] Calculate the ambient light intensity at the location of the street lamp, adjust the reference light intensity of the current street lamp according to the light intensity and ambient light intensity required to meet the road lighting standards in the area at this time, use this reference light intensity as the initial light intensity of the street lamp, and turn on the street lamp;

[0160] Monitor the real-time traffic information of the road section where the street lights are located, and adjust the light intensity of the current street lights according to the real-time traffic information;

[0161] After the scheduled closing time is reached, the light intensity required for the area to meet the road lighting standards under the current visibility level is determined based on the real-time meteorological visibility information of the current area, and the ambient light intensity information of the current location of the street lamp is measured. If the ambient light intensity is higher than the required light intensity, the current street lamp is turned off. If the ambient light intensity is lower than the required light intensity, the ambient light intensity information continues to be monitored until it is higher than the required light intensity, and the street lamp is turned off.

[0162] To sum up, the advantages of the present invention are: by obtaining the sunrise and sunset times in the meteorological information of the area where the street lights are located, the scheduled turning on and off times of the street lights in the current area are determined, so as to prevent the waste of electric power resources caused by the street lights being turned on too early or turned off too late, and the insufficient road lighting brightness caused by the turning on too late or turning off too early affecting the normal driving of vehicles; and after reaching the scheduled turning on time, the benchmark light intensity required for the street lights is determined according to the real-time meteorological visibility information and ambient light intensity information of the current area, so as to prevent the street lights from being too bright or too dark and affecting the driver's vision; at the same time, the traffic information of the road section where the street lights are located is monitored in real time, and the light intensity of the street lights is adjusted according to the real-time traffic information, and the street lights are dimmed or even turned off in time when there are no vehicles passing through the current road section to save electric power resources.

[0163] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A street lamp intelligent control method based on data feedback, characterized in that: include: Obtain real-time weather information in the area, and determine the scheduled opening and closing times of street lights in the current area based on the sunrise and sunset times in the weather information; According to the real-time weather information in the area, obtain the real-time weather visibility information of the current area; After the scheduled opening time is reached, the light intensity required to meet the road lighting standards in the area under the current meteorological visibility level is determined based on the real-time meteorological visibility information of the current area; Calculate the ambient light intensity at the location of the street lamp, adjust the reference light intensity of the current street lamp according to the light intensity and ambient light intensity required to meet the road lighting standards in the area at this time, use this reference light intensity as the initial light intensity of the street lamp, and turn on the street lamp; Monitor the real-time traffic information of the road section where the street lights are located, and adjust the light intensity of the current street lights according to the real-time traffic information; After the scheduled closing time is reached, the light intensity required for the area to meet the road lighting standards under the current visibility level is determined based on the real-time meteorological visibility information of the current area, and the ambient light intensity information of the position where the current street lamp is visible is measured. If the ambient light intensity is higher than the required light intensity, the current street lamp is turned off. If the ambient light intensity is lower than the required light intensity, the ambient light intensity information is continuously monitored until it is higher than the required light intensity, and the street lamp is turned off. The specific method for determining the illumination intensity required for the area to meet the road lighting standard under the current meteorological visibility level according to the meteorological visibility information in the real-time meteorological information in the area is: According to the urban road lighting design standards, determine the standard light intensity of road lighting in the area; Determine the calculation formula of the influence coefficient of meteorological visibility on the illumination intensity in the area according to the meteorological visibility level, street light illumination intensity, road brightness coefficient and road brightness information in the historical data, and substitute the current meteorological visibility value into the formula to obtain the influence coefficient at this time; The formula E0 = E × K is used to calculate the light intensity required to meet the road lighting standards under the current meteorological visibility level; Where E0 is the standard illumination intensity of road lighting in the area, K is the influence coefficient of meteorological visibility on the illumination intensity in the area, and E is the illumination intensity required to meet the road lighting standard in the area under the current meteorological visibility level.

2. According to claim 1, a street lamp intelligent control method based on data feedback is characterized in that: The step of adjusting the reference illumination intensity of the current street lamp according to the illumination intensity and ambient illumination intensity required to meet the road illumination standard in the area under the current visibility level specifically includes: After the street lights are turned on, a round of ambient light intensity measurement is performed every 15 minutes, with 10 measurements per round and an interval of 20 seconds between each round. The outliers are removed from the 10 measured data, and the remaining data are used as the real-time data set. The average value of these values ​​is calculated as the real-time ambient light intensity of the period. The reference light intensity of the current street lamp is calculated based on the real-time ambient light intensity of the time period and the light intensity required for the area to meet the road lighting standard determined according to the meteorological visibility. If the reference light intensity value is less than 0, the reference light intensity value is set to 30% of the light intensity value required for the road; The calculation formula of the reference illumination intensity of the street lamp is: Where E is the light intensity value required for the area to meet the road lighting standard determined according to meteorological visibility, B is the real-time light intensity value, K is the influence coefficient of meteorological visibility on the light intensity in the area, and L is the obtained street lamp benchmark light intensity value.

3. The intelligent street lamp control method based on data feedback according to claim 1 is characterized in that: The specific method of adjusting the illumination intensity of the current street lamp according to the real-time traffic information is: Obtain the street lamp benchmark light intensity value, and take 50% of it as the street lamp energy-saving light intensity value; The street lamp uses the reference light intensity as the initial light intensity for road lighting; Monitoring the street lamp area based on the motion sensor to obtain regional monitoring information, wherein the regional monitoring information is related information of the moving target obtained by monitoring the moving target within the monitoring range of the street lamp; According to the regional monitoring information, determine whether there is a moving target within the monitoring range of the street lamp. If so, cancel the timing and analyze the moving direction of the moving target; if not, the street lamp maintains the current state unchanged; According to the regional monitoring information, the moving direction of the moving target is analyzed. If the moving direction is away from the current street lamp, the timer is started after the moving target leaves the lighting range of the street lamp, and the light intensity of the current street lamp is adjusted to the energy-saving light intensity after the timer returns to zero. If the moving direction is close to the current street lamp, the street lamp light intensity is adjusted to the benchmark light intensity.

4. The method for intelligent street lamp control based on data feedback according to claim 3 is characterized in that: The method for obtaining the street lamp monitoring range is: Acquire street light parameter information, wherein the street light parameter information includes street light fixture specification information and street light installation information; According to the street lamp parameter information, obtain the lighting radius of the street lamp; Assume that the vehicle travels at the maximum speed limit of the road, and the distance traveled by the vehicle in 10 seconds is taken as the buffer distance; The sum of the lighting radius and the buffer distance is used as the monitoring radius of the street lamp; Based on the monitoring radius, a street lamp monitoring area is obtained, where the street lamp monitoring area represents a circular area with the street lamp position as the center and the monitoring radius as the radius; The overlapping area of ​​the street light monitoring area and the road where the street light is located is taken as the monitoring range of the street light.

5. The method for intelligent street lamp control based on data feedback according to claim 3 is characterized in that: The specific method for determining whether the moving target is within the monitoring range of the street lamp and determining the moving direction of the moving target is: Use the motion sensor to send two pulse signals to the moving target, and record the time of the two pulse signals as m1 and n1 respectively; The motion sensor receives the pulse signal reflected by the moving target, and the time for the two pulse signals to return is recorded as m2 and n2 respectively; If the value of m2-m1 is less than the value of n2-n1, it means that the moving target is moving away from the street lamp. If the value of m2-m1 is greater than the value of n2-n1, it means that the moving target is approaching the street lamp. Based on the pulse emission time m1 and the pulse return time m2, the distance between the moving target and the street lamp is obtained. If the distance is less than the monitoring radius of the street lamp, it means that the moving target is within the monitoring range of the street lamp. Among them, the calculation formula for the distance between the moving target and the street lamp is: In the formula, c represents the speed of light, m1 is the emission time of the first pulse, m2 is the return time of the first pulse, and the obtained value d is the distance between the moving target and the street lamp when the pulse is emitted.

6. The method for intelligent street lamp control based on data feedback according to claim 3 is characterized in that: The method for adjusting the illumination intensity of street lamps specifically comprises: Determine the minimum contrast between street light intensity and ambient light intensity to be 0.4; After the moving target enters the monitoring range, the contrast between the street light intensity and the ambient light intensity is calculated to determine whether it is lower than the minimum contrast. If so, the street light intensity is adjusted until the contrast between the street light intensity and the ambient light intensity is not lower than the minimum contrast. Keep the contrast between street light intensity and ambient light intensity not less than the minimum contrast, and gradually increase the street light intensity to the benchmark light intensity within the buffer distance by 10% of the benchmark light intensity; After the moving target leaves the lighting range, based on the timer set on the street lamp, after the timer returns to zero, the street lamp illumination intensity is reduced by 10% of the reference illumination every 1 second until it is reduced to the energy-saving illumination intensity after 5 seconds; Among them, the contrast calculation formula of street light illumination intensity and ambient light intensity is: Where, L o is the street light intensity, L b is the ambient light intensity, and the result C is the contrast between the street light intensity and the ambient light intensity.

7. The method for intelligent street lamp control based on data feedback according to claim 3, characterized in that: The method for setting a timer specifically includes: Set an initial timing time, an exponential factor, a maximum timing time, and a timing time adjustment number; Set the timer of the street light to the initial time; According to the monitoring information, determine whether there is a moving target within the monitoring range during the timing time. If so, adjust the light intensity of the current street lamp to the reference light intensity and cancel the timing. If a moving target is detected within the monitoring range of the street lamp before the timer returns to zero for three consecutive times, calculate the next timing time according to the exponential backoff algorithm based on the current timing time, exponential factor and the number of timing time adjustments, and add 1 to the number of timing time adjustments. If not, adjust the light intensity of the current street lamp to the energy-saving light intensity and keep the next timing time unchanged; Get the next timing time and determine whether it exceeds the maximum timing time. If so, use the maximum timing time as the next timing time. Determine whether there is a moving target within the monitoring range during the timing time based on the monitoring information. If so, adjust the light intensity of the current street lamp to the reference light intensity and cancel the timing. If not, adjust the light intensity of the current street lamp to the energy-saving light intensity, set the next timing to the initial timing time, and reset the timing time adjustment times to zero. The calculation formula for obtaining the next timing time according to the exponential backoff algorithm based on the current timing time, the exponential factor and the number of timing time adjustments is: T2=T1×a i Where, T1 is the current timing time, a is the exponential factor, i is the number of timing time adjustments, and T2 is the next timing time.

8. A street lamp intelligent control system based on data feedback, characterized in that: Used to implement a street lamp intelligent control method based on data feedback as described in any one of claims 1 to 7, comprising a data input unit, a light intensity determination unit, a light intensity adjustment unit and a control center; The data input unit is used to receive weather information from the control center, including the sunrise and sunset information of the day and real-time weather visibility information; The illumination intensity determination unit is used to determine the illumination intensity of the street lamps in the current area according to the current real-time meteorological visibility information and the real-time ambient illumination intensity information in the area after the scheduled opening time of the street lamps on the day is reached; The illumination intensity adjustment unit is used to adjust the illumination intensity of the street lamp in real time according to the traffic information of the road section; The control center communicates directly with the street lamps to perform real-time information transmission and real-time control of the street lamps.

9. The intelligent street lamp control system based on data feedback according to claim 8, characterized in that: The illumination intensity determination unit includes a road required illumination intensity calculation unit, an ambient illumination intensity measurement unit and a street lamp illumination intensity calculation unit; The road required illumination intensity calculation unit is used to determine the illumination intensity required to meet the road lighting standard in the area at this time according to the real-time meteorological visibility information of the current area; The ambient light intensity calculation unit is used to calculate the ambient light intensity information at the location of the street lamp; The street light illumination intensity calculation unit is used to determine the reference illumination intensity of the street light according to the illumination intensity information required to meet the road lighting standard in the area and the ambient illumination intensity information of the location where the street light is located; The illumination intensity adjustment unit includes a traffic monitoring unit and a street light illumination intensity adjustment unit; The traffic monitoring unit monitors the road section where the street lamp is located in real time through the motion sensor, and sends the real-time data of the moving target within the monitoring range to the street lamp illumination intensity adjustment unit; The street light illumination intensity adjustment unit performs real-time adjustment of the street light illumination intensity according to the real-time data sent by the traffic monitoring unit.

10. A computer-readable storage medium having a computer-readable program stored thereon, characterized in that: When the computer-readable program is called, it executes a street lamp intelligent control method based on data feedback as described in any one of claims 1-7.

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