A street lamp lighting control method and street lamp

Abstract

The present invention provides a control method for street lighting and a street lamp, wherein the method is applied to a street lamp system, and comprises the following steps: determining whether there is an observer in the detection area of ​​a detection mechanism; if so, obtaining the current position information of the observer in real time, determining the first current position information obtained as the initial position information, the current position information at least includes coordinates and an angle, the angle being the angle between the line connecting the detection mechanism and the observer and the road surface; calculating the movement information of the observer according to the current position information and the initial position information of the observer, the movement information at least including vector displacement and angle difference; controlling the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information. The present invention avoids excessive light intensity within the visual angle range of the observer, and effectively avoids the occurrence of traffic accidents.

Description

Technical Field

[0001] The present invention belongs to the technical field of road lighting, and in particular relates to a street lamp lighting control method and a street lamp. Background Art

[0002] Road lighting lamps must have the technical characteristics of wide angle, high brightness and large area illumination range. The existing traditional LED lighting lamps usually adopt bat-wing asymmetric light distribution scheme, which is designed in accordance with the national industry standard "Urban Road Lighting Design Standard CJJ455-2015". However, while this light distribution scheme has large angle, high brightness and wide area illumination, the glare value is also increasing simultaneously. In fact, in the application process, because LED is a point-like light source, the luminous flux is concentrated to one light point, so the excessive pursuit of road landscape lighting effect, uncontrolled increase in brightness without effective control - light propagation mode, causes the light intensity within the visible angle range to be too high. For drivers on the road, the glare value is very serious, especially for long-term drivers. If the glare value is too high, it is very easy to have temporary visual blackening phenomenon, which is very easy to cause traffic accidents. Summary of the invention

[0003] The object of the present invention is to provide a control method for street lamp lighting and a street lamp, so as to avoid excessive light intensity within the visual angle range of an observer and effectively avoid the occurrence of traffic accidents.

[0004] The present invention is achieved through the following technical solutions:

[0005] A method for controlling street lamp lighting is applied to a street lamp system, wherein the street lamp system includes a plurality of street lamps arranged at intervals on one side or both sides of a road and a detection mechanism arranged on the street lamps, and the method includes the following steps:

[0006] Determine whether there are observers in the testing area of ​​the testing agency;

[0007] If yes, the current position information of the observer is obtained in real time, and the first current position information obtained is determined as the initial position information, where the current position information at least includes coordinates and an angle, where the angle is the angle between the line connecting the detection mechanism and the observer and the road surface;

[0008] Calculate the movement information of the observer according to the current position information and the initial position information of the observer, where the movement information at least includes a vector displacement and an angle difference;

[0009] The brightness and illumination angle of the lighting module of the street lamp are controlled according to the calculated movement information.

[0010] Furthermore, the detection mechanism includes at least a distance detection component, and the step of obtaining the current position information of the observer in real time includes:

[0011] Draw a first perpendicular line from the position of the distance detection component to the road surface, and establish a coordinate system with the intersection of the first perpendicular line and the road surface as the origin, in which the direction of the y-axis is the same as the direction of the road;

[0012] Draw a parallel line from the observer's position to the y-axis of the coordinate system, draw a second perpendicular line from the distance detection component's position to the parallel line, and calculate a first distance L1 between the intersection of the second perpendicular line and the parallel line and the distance detection component;

[0013] Acquire a second distance L2 between the current position of the observer and the distance detection component in real time through the distance detection component;

[0014] According to the formula and formula Calculate the values ​​of x and y, where x is the distance between the current position of the observer and the y-axis of the coordinate system, H is the height distance between the distance detection component and the road surface, and y is the distance between the current position of the observer and the x-axis of the coordinate system;

[0015] Based on the preset judgment rules, the quadrant of the observer's current position is obtained, and the coordinates (x, y) of the observer's current position are obtained according to the positive and negative values ​​of x and y in the quadrant;

[0016] The angle ∠α is calculated according to the formula ∠α=90°-arccos(H / L2), and the current position information of the observer is obtained according to the coordinates (x, y) of the observer's current position.

[0017] Furthermore, the step of controlling the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information specifically includes:

[0018] Based on the preset correspondence between the movement information and the control signal, a control signal corresponding to the movement information is obtained, where the control signal includes a brightness signal and an angle signal;

[0019] The brightness of the lighting module of the street lamp is controlled according to the brightness signal, and the illumination angle of the street lamp is controlled according to the angle signal.

[0020] Furthermore, the detection mechanism further includes a communication module, and after the step of calculating the movement information of the observer, the method further includes:

[0021] The mobile information is transmitted to the communication modules of all street lamps within its communication range through the communication module.

[0022] Furthermore, before the step of determining whether there is an observer in the detection area of ​​the detection mechanism, the method further includes:

[0023] Detect whether the communication module receives mobile information;

[0024] If yes, the received mobile information is confirmed as auxiliary mobile information;

[0025] Before the step of controlling the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information, the method further includes:

[0026] Acquire a corresponding auxiliary brightness signal according to the auxiliary movement information;

[0027] Determine whether the auxiliary brightness signal is greater than a preset brightness threshold;

[0028] If yes, then obtain the corresponding angle signal according to the calculated movement information, and obtain the preset default brightness signal, control the brightness of the lighting module of the street lamp according to the default brightness signal, and control the illumination angle of the street lamp according to the angle signal;

[0029] If not, the step of controlling the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information is executed.

[0030] Furthermore, the distance detection component includes a microwave distance sensor and an infrared distance sensor arranged in parallel, and the step of obtaining the second distance L2 between the observer's current position and the distance detection component in real time through the distance detection component includes:

[0031] Acquire a third distance between the observer's current position and the microwave distance sensor through the microwave distance sensor;

[0032] obtaining a fourth distance between the observer's current position and the microwave distance sensor through the infrared distance sensor;

[0033] Determine whether the absolute value of the difference between the first distance and the fourth distance is less than or equal to a preset error threshold;

[0034] If so, the average of the third distance and the fourth distance is taken as the second distance L2 between the observer's current position and the distance detection component.

[0035] The present invention also provides a street lamp, comprising a street lamp body and a detection mechanism arranged on the street lamp body, the street lamp body comprising a lamp pole, a lamp housing arranged on the lamp pole and a plurality of lighting modules rotatably arranged in the lamp housing, the detection mechanism comprising a controller, a servo motor, a dimming unit and a distance detection component, the controller being respectively connected to the servo motor, the dimming unit and the distance detection component, the servo motor controlling the rotation of the plurality of lighting modules according to a control signal received from the controller, the dimming unit controlling the input current of the lighting module according to the control signal received from the controller to control the brightness of the lighting module, and the distance detection component being used to transmit the detected distance between the observer and the distance detection component to the controller.

[0036] Furthermore, the distance detection component includes a probe base, a hemispherical lens, a microwave distance sensor and an infrared distance sensor, the probe base is arranged on the lamp housing, the hemispherical lens is arranged on the probe base, the microwave distance sensor and the infrared distance sensor are both located in the hemispherical lens and arranged side by side on the probe base.

[0037] Furthermore, the street lamp further comprises a rotating rod rotatably arranged in the lamp housing, the plurality of lighting modules are arranged on the rotating rod, and the servo motor drives the rotating rod to rotate.

[0038] Furthermore, the detection mechanism also includes a communication module connected to the controller.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows: when the detection mechanism detects that an observer has entered its detection range, the position information of the observer is obtained in real time. When the position of the observer changes, the detection mechanism controls the brightness and illumination angle of the lighting module of the street lamp according to the vector position and angle difference of the observer, so as to avoid excessive light intensity within the visual angle range of the observer, thereby avoiding excessive glare values ​​and preventing the observer from experiencing temporary visual blackening, thereby effectively avoiding the occurrence of traffic accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A flowchart of the steps of the street lamp lighting control method of the present invention;

[0041] Figure 2 A schematic diagram of establishing a coordinate system in the street lamp lighting control method of the present invention;

[0042] Figure 3 It is a schematic diagram of the structure of the street lamp of the present invention;

[0043] Figure 4 is a side view of the street lamp of the present invention;

[0044] Figure 5This is an exploded view of the distance detection component in the street lamp of the present invention;

[0045] Figure 6 A schematic diagram of a rotation of the street lamp of the present invention;

[0046] Figure 7 FIG. 2 is another rotation schematic diagram of the street lamp of the present invention.

[0047] In the figure, 1-lamp housing, 11-lamp pole mounting part, 12-lamp cover, 2-lighting module, 21-PCBA board, 22-lighting lens, 3-servo motor, 4-distance detection component, 41-probe base, 42-hemispherical lens, 43-microwave distance sensor, 44-infrared distance sensor, 5-rotating rod, 6-lamp pole, 7-road. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0052] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0053] See also Figure 1 , Figure 1 A method for controlling street lighting is applied to a street lighting system, wherein the street lighting system includes a plurality of street lights arranged at intervals on one side or both sides of a road and a detection mechanism arranged on the street lights. The method includes the following steps:

[0054] S1. Determine whether there is an observer in the detection area of ​​the detection agency;

[0055] S2, if yes, then obtain the current position information of the observer in real time, determine the first current position information obtained as the initial position information, the current position information at least includes coordinates and an angle, the angle being the angle between the line connecting the detection mechanism and the observer and the road surface;

[0056] S3, calculating the movement information of the observer according to the current position information and the initial position information of the observer, where the movement information at least includes a vector displacement and an angle difference;

[0057] S4. Control the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information.

[0058] In the above step S1, the detection mechanism scans within a conical area with its location as the top, and the detection area of ​​the detection mechanism is larger than the illumination area of ​​the street lamp. The detection mechanism determines whether an observer has entered its detection area by whether it can receive reflected waves. Specifically, when an observer enters the detection area of ​​the detection mechanism, the electromagnetic waves emitted by the detection mechanism can be reflected by the observer, and the detection mechanism receives reflected waves, which indicates that there is an observer in its detection area.

[0059] In the above step S2, when the detection mechanism determines that there is an observer in its detection range, the detection mechanism locates the observer in real time to obtain the coordinates and angle of the observer's current position so as to subsequently identify the observer's moving position.

[0060] Please refer to Figure 2 , Figure 2 The schematic diagram of establishing a coordinate system in the control method of street lighting of the present invention. Further, in step S2, the detection mechanism includes at least a distance detection component 4, and the step of obtaining the current position information of the observer in real time includes:

[0061] S21, draw a first perpendicular line from the position of the distance detection component 4 to the road surface, and establish a coordinate system with the intersection of the first perpendicular line and the road surface as the origin, wherein the direction of the y-axis is the same as the direction of the road 7;

[0062] S22, draw a parallel line from the position of the observer to the y-axis of the coordinate system, draw a second perpendicular line from the position of the distance detection component to the parallel line, and calculate a first distance L1 between the intersection of the second perpendicular line and the parallel line and the distance detection component;

[0063] S23, obtaining in real time through the distance detection component 4 a second distance L2 between the current position of the observer and the distance detection component;

[0064] S24, according to the formula and formula Calculate the values ​​of x and y, where x is the distance between the current position of the observer and the y-axis of the coordinate system, H is the height distance between the distance detection component and the road surface, and y is the distance between the current position of the observer and the x-axis of the coordinate system;

[0065] S25, determining the quadrant of the current position of the observer based on a preset determination rule, and determining the positive and negative values ​​of x and y according to the quadrant to obtain the coordinates (x, y) of the current position of the observer;

[0066] S26. Calculate the angle ∠α according to the formula ∠α=90°-arccos(H / L2), and obtain the current position information of the observer according to the coordinates (x, y) of the observer's current position.

[0067] In the above step S21, for each detection mechanism on the street lamp, a rectangular coordinate system is first established. In the present embodiment, a first perpendicular line is drawn from the position of the distance detection component to the road surface, and a rectangular coordinate system is established with the intersection O of the first perpendicular line and the road surface as the origin, wherein the first perpendicular is used as the z-axis, and the direction of the road surface of road 7 toward the position of the detection mechanism is defined as the positive direction, the direction of the y-axis is the same as the direction of road 7, and the forward direction of the lane of the positioned road 7 is the positive direction, and the direction of the x-axis is perpendicular to the direction of the lane of road 7, and the side of the lane of road 7 away from the street lamp is the positive direction.

[0068] In the above step S22, a parallel line parallel to the y-axis of the coordinate system is drawn from the position of the observer. The parallel line can be regarded as the direction of the observer's line of sight, that is, the direction in which the observer is moving. Then, a second perpendicular line is drawn from the position of the distance detection component to the parallel line. The intersection of the second perpendicular line and the parallel line is recorded as N, and the coordinates of N are extracted. The extraction method is an existing method and will not be repeated here. Then, based on the coordinates of N and the known coordinates of the distance detection component, the first distance L1 between the intersection N of the second perpendicular line and the parallel line and the distance detection component is calculated. The distance between the intersection N of the second perpendicular line and the parallel line and the coordinate origin O is the value corresponding to the x-axis in the coordinates of the observer's current position.

[0069] In the above step S23, the second distance L2 is directly acquired by a distance detection component, and the distance detection component can adopt an existing distance detection mechanism.

[0070] Furthermore, the distance detection component includes a microwave distance sensor and an infrared distance sensor arranged in parallel, and the step of obtaining the second distance L2 between the observer's current position and the distance detection component in real time through the distance detection component includes:

[0071] S231, obtaining a third distance between the observer's current position and the microwave distance sensor through the microwave distance sensor;

[0072] S232, obtaining a fourth distance between the current position of the observer and the microwave distance sensor through the infrared distance sensor;

[0073] S233, determining whether the absolute value of the difference between the first distance and the fourth distance is less than or equal to a preset error threshold;

[0074] S234. Take the average value of the third distance and the fourth distance as the second distance L2 between the observer's current position and the distance detection component.

[0075] In the above steps S231 to S233, the microwave distance sensor detects more accurately when the observer is an object, and the infrared distance sensor detects more accurately when the observer is a person. Therefore, after obtaining the sum of the third distance and the fourth distance, it is determined whether the absolute value of the difference between the first distance and the fourth distance is less than or equal to the preset error threshold, and the error threshold may be 5 cm. If so, the average value of the third distance and the fourth distance is used as the second distance L2 between the observer's current position and the distance detection component; if not, it means that the microwave distance sensor and the infrared distance sensor may be damaged, and the obtained distance is not used. Therefore, the distance detection component uses the microwave distance sensor and the infrared distance sensor to jointly emit mixed electromagnetic waves, and the second distance L2 between the observer and the distance detection component can be accurately obtained regardless of whether the observer is an object or a person.

[0076] In the above step S24, Figure 2 According to trigonometric functions, we can get the first formula The second formula ∠D0=arccos(H / L0), the third formula M=L0*sin∠D0, the fourth formula The fifth formula is obtained by combining the second formula, the third formula and the fourth formula Thus, the distance x between the observer's current position and the y-axis of the coordinate system and the distance y between the observer's current position and the x-axis of the coordinate system can be calculated.

[0077] In the above step S25, in the coordinate system, the xoy plane is divided into the first quadrant, the second quadrant, the third quadrant and the fourth quadrant. When the observer enters the scanning area of ​​the detection mechanism, he is located in the fourth quadrant. Therefore, in the coordinates of the observer's initial position, x is a positive value and y is a negative value, and the initial coordinates (x0, y0) are obtained. When the observer moves forward along road 7, it can be determined whether the difference between the y value calculated at his current position and the y0 value of the initial position is greater than the absolute value of y0. If so, it means that the observer has moved from the fourth quadrant to the first quadrant. At this time, in the coordinates of the observer's current position, x is a positive value and y is a positive value. The positive and negative values ​​of x and y in the coordinates of the observer's current position are determined according to the quadrant of the observer's current position.

[0078] In the above step S26, Figure 2 It can be seen that according to the trigonometric function ∠α=90°-arccos(H / L2), the angle ∠α between the distance detection component and the line connecting the observer and the road surface can be obtained, and according to the coordinates of the observer's current position obtained in step S25 (x, y), the position information of the observer's current position, i.e., the coordinates (x, y) and the angle ∠α, can be obtained.

[0079] In the above step S3, the angle difference in the movement information is the difference between the angle in the current position information of the observer and the angle in the initial position information of the observer. The coordinates in the initial position information of the observer are marked as initial coordinates (x0, y0), and the angle in the initial position information of the observer is recorded as initial angle ∠α0. The coordinates in the current position information of the observer obtained subsequently are recorded as (x1, y1), (x2, y2), ..., (x n ,y n ), n is the total number of current position information obtained; similarly, the middle angles of the current position information of the observer obtained subsequently are recorded as ∠α1, ∠α2, ..., ∠α n , then the vector positions of the observer's current position and initial position are (x1-x0, y1-y0), (x2-x0, y2-y0), ..., (x n -x0,y n -y0). The angle difference between the angle of the observer at the current position and the angle of the initial position is ∠α1-∠α0, ∠α2-∠α0, ..., ∠α n -∠α0.

[0080] Furthermore, the detection mechanism further includes a communication module, and after the step of calculating the movement information of the observer, the method further includes:

[0081] S3a, transmitting the movement information to the communication modules of all street lamps within its communication range through the communication module.

[0082] In the above step S3a, after the detection mechanism calculates the movement information of the observer's current location, it converts the calculated movement information of the observer into a digital signal, and shares the digital signal to the communication modules of all street lamps within the communication area of ​​its communication module. After the communication modules of other street lamps receive the shared digital signal, the digital signal received by the detection module is reconverted into auxiliary movement information, which is combined with the movement information calculated by its own detection module to control the brightness and illumination angle of the street lamp.

[0083] In the above step S4, when the observer enters the scanning area of ​​the detection mechanism and moves toward the street lamp, the brightness of the street lamp is adjusted as the observer's vector displacement changes and the angle difference changes, and the illumination angle of the street lamp is controlled so that the illumination area of ​​the street lamp is in front of the observer, so that the observer can better and more clearly identify obstacles in front, thereby avoiding excessive light intensity within the observer's visual angle range, avoiding excessive glare values, and preventing the observer from experiencing temporary visual blackening, thereby effectively avoiding the occurrence of traffic accidents; when the observer moves forward a distance and passes the street lamp, and moves in the direction away from the street lamp, the brightness of the street lamp will also be adjusted as the observer's vector displacement changes and the angle difference changes, and the illumination angle of the street lamp will be controlled so that the illumination area of ​​the street lamp is behind the observer, so that the observer can be better and more clearly identified by other observers, thereby greatly improving the safety level of the observer's life and property.

[0084] Furthermore, the step of controlling the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information specifically includes:

[0085] S41, based on a preset correspondence relationship between movement information and control signals, obtaining a control signal corresponding to the movement information, where the control signal includes a brightness signal and an angle signal;

[0086] S42: Control the brightness of the lighting module of the street lamp according to the brightness signal, and control the illumination angle of the street lamp according to the angle signal.

[0087] In the above steps S41 and S42, the correspondence between the movement information and the control signal is preset, each vector displacement and angle difference corresponds to a brightness signal and an angle signal, and the brightness signal can be a voltage signal or a frequency signal. When the corresponding brightness signal is obtained according to the vector displacement and angle difference, the current input to the street lamp lighting module is adjusted according to the brightness signal to achieve the brightness change control of the street lamp lighting module. The corresponding angle signal is obtained according to the vector displacement and angle difference, and then the street lamp lighting module is controlled to rotate according to the angle signal to achieve the street lamp illumination angle control.

[0088] Furthermore, before the step of determining whether there is an observer in the detection area of ​​the detection mechanism, the method further includes:

[0089] S1a, detecting whether the communication module receives mobile information;

[0090] S1b, if yes, confirming the received mobile information as auxiliary mobile information;

[0091] Before the step of controlling the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information, the method further includes:

[0092] S41a, acquiring a corresponding auxiliary brightness signal according to the auxiliary movement information;

[0093] S41b, determining whether the auxiliary brightness signal is greater than a preset brightness threshold;

[0094] S41c, if yes, obtain a corresponding angle signal according to the calculated movement information, and obtain a preset default brightness signal, control the brightness of the lighting module of the street lamp according to the default brightness signal, and control the illumination angle of the street lamp according to the angle signal;

[0095] S41d: If not, executing the step of controlling the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information.

[0096] In the above steps S1a and S1b, starting from the street lamp at one end, the street lamps are numbered in sequence, and are recorded as the first street lamp, the second street lamp and the Nth street lamp, where N is the total number of street lamps. In this embodiment, if the detection mechanism of the first street lamp detects an observer in its detection area, after calculating the movement information of the observer, the calculated movement information will be shared with the communication modules of the street lamps within its communication range through the communication module. For example, the second street lamp and the third street lamp communicate with the first street lamp, so the communication modules of the second street lamp and the third street lamp receive the movement information of the observer shared by the first street lamp, and record the received movement information as the preset auxiliary information. At the same time, the detection mechanism on the second street lamp will also detect whether there is an observer in its detection area. If not, the second street lamp is controlled to maintain the initial state; if so, steps S2 and S3 are also executed. At this time, it indicates that the observer is located between the first street lamp and the second street lamp, and can be scanned by the detection mechanism on the first street lamp and the detection mechanism on the second street lamp at the same time. Similarly, the detection mechanism on the third street lamp, like the detection mechanism on the second street lamp, will also detect whether there is an observer in its detection area.

[0097] In the above steps S41a to S41d, before executing step S41, the detection mechanism of the second street lamp first obtains the corresponding auxiliary brightness signal according to the auxiliary movement information, and determines whether the auxiliary brightness signal is greater than the preset brightness threshold, that is, whether the brightness of the first street lamp irradiating the observer has met the brightness requirement. If the auxiliary brightness signal is greater than the preset brightness threshold, it means that the brightness of the first street lamp irradiating the observer has met the requirement, and the brightness of the second street lamp irradiating the observer does not need to be so bright, then the detection mechanism of the second street lamp obtains the default brightness signal, adjusts the brightness of the second street lamp according to the brightness signal, and obtains the corresponding angle signal according to the calculated movement information, and adjusts the irradiation angle of the second street lamp according to the angle signal, so that the irradiation area of ​​the second street lamp is located in front of the observer. If the auxiliary brightness signal is less than the preset brightness threshold, the detection mechanism of the second street lamp executes steps S41 and S42.

[0098] Please refer to Figure 3 , Figure 3 The present invention also provides a street lamp, comprising a street lamp body and a detection mechanism arranged on the street lamp body, the detection mechanism is used to control the illumination brightness and illumination angle of the street lamp body.

[0099] Please refer to Figure 4 , Figure 4 It is a side view of the street lamp of the present invention. Specifically, the street lamp body includes a lamp pole 6, a lamp housing 1 arranged on the lamp pole 6 and a lighting module 2 rotatably arranged in the lamp housing 1. The detection mechanism includes a controller, a servo motor 3, a dimming unit and a distance detection component 4. The controller is connected to the servo motor 3, the dimming unit and the distance detection component 4 respectively. The servo motor 3 controls the rotation of the lighting module 2 according to the control signal received from the controller. The dimming unit controls the input current of the lighting module 2 according to the control signal received from the controller to control the brightness of the lighting module 2. The distance detection component 4 is used to transmit the detected distance between the observer and the distance detection component 4 to the controller.

[0100] Please refer to Figure 5 , Figure 5 The figure is an exploded view of the distance detection component in the street lamp of the present invention. The distance detection component 4 is used to detect the distance between the observer and the distance detection component 4, and transmit the distance data to the controller. In one embodiment, the distance detection component 4 includes a probe base 41, a hemispherical lens, a microwave distance sensor 43 and an infrared distance sensor. The probe base is arranged on the lamp housing 1, the hemispherical lens is arranged on the probe base 41, and the microwave distance sensor 43 and the infrared distance sensor are both located in the hemispherical lens and arranged in parallel on the probe base 41. The microwave distance sensor 43 detects more accurately when the observer is an object, while the infrared distance sensor detects more accurately when the observer is a person. Therefore, the distance detection component 4 uses the microwave distance sensor 43 and the infrared distance sensor to jointly emit mixed electromagnetic waves, so that the distance between the observer and the distance detection component 4 can be accurately obtained regardless of whether the observer is an object or a person. In one embodiment, the detection mechanism also includes a communication module connected to the controller. Generally, a plurality of street lamps are arranged at intervals on the road 7, so a communication module is arranged on the street lamp so that the controller can communicate with other street lamps through the communication module. When the distance detection component 4 on the first street lamp at one end of the road 7 detects an observer, the communication module sends the observer's information to the communication modules of all street lamps within the communication range of its communication module, and the controller prepares for standby according to the information received by the communication module.

[0101] Furthermore, to facilitate the installation of street lamps, in one embodiment, the lamp housing 1 includes a lamp pole 6 mounting portion 11 and a lampshade 12, the mounting portion is detachably connected to the lamp pole 6, and is provided with a accommodating cavity, the lampshade 12 is detachably connected to the mounting portion, the lighting module 2 is rotatably arranged in the lampshade 12, and the controller, servo motor 3, dimming unit and communication module are arranged in the accommodating cavity.

[0102] Please refer to Figure 6 and Figure 7 , Figure 6 is a rotation schematic diagram of the street lamp of the present invention, Figure 7 Another rotation schematic diagram of the street lamp of the present invention. The controller receives the distance information sent by the distance detection component 4, processes the distance information, and then outputs control signals to the servo motor 3 and the dimming unit respectively. The servo motor 3 controls the rotation of the lighting module 2 according to the received control signal, and the dimming unit controls the brightness of the lighting module 2 according to the received control signal, so as to control the brightness and illumination angle of the lighting module 2, so that the street lamp meets people's requirements. Further, in order to make the rotation of the lighting module 2 in the housing more stable, in one embodiment, the street lamp also includes a rotating rod 5 rotatably arranged in the lamp housing 1, the lighting module 2 is arranged on the rotating rod 5, and the servo motor 3 drives the rotating rod 5 to rotate. The lighting module 2 is arranged on the rotating rod 5, and the contact part between the two is large. The lighting module 2 is driven to rotate by the rotating rod 5, so that the rotation of the lighting module 2 is more stable. In one embodiment, the lighting module 2 includes a PCBA board 21, a lighting lens 22 arranged on the PCBA board 21, and a plurality of LED light-emitting devices located in the lighting lens 22 and arranged on the PCBA board 21.

[0103] Compared with the prior art, the beneficial effects of the present invention are as follows: when the detection mechanism detects that an observer has entered its detection range, the position information of the observer is obtained in real time. When the position of the observer changes, the detection mechanism controls the brightness and illumination angle of the lighting module of the street lamp according to the vector position and angle difference of the observer, so as to avoid excessive light intensity within the visual angle range of the observer, thereby avoiding excessive glare values ​​and preventing the observer from experiencing temporary visual blackening, thereby effectively avoiding the occurrence of traffic accidents.

[0104] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A street lighting control method, applied to a street lighting system, characterized in that: The street lamp system comprises a plurality of street lamps arranged at intervals on one side or both sides of a road and a detection mechanism arranged on the street lamps, wherein the detection mechanism comprises at least a distance detection component, and the method comprises the following steps: Determine whether there are observers in the testing area of ​​the testing agency; If yes, the current position information of the observer is obtained in real time, and the first current position information obtained is determined as the initial position information, wherein the current position information at least includes coordinates and an angle, and the angle is the angle between the line connecting the detection mechanism and the observer and the road surface; Calculating the movement information of the observer according to the current position information and the initial position information of the observer, wherein the movement information at least includes a vector displacement and an angle difference; Controlling the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information; The step of obtaining the current position information of the observer in real time includes: Draw a first perpendicular line from the position of the distance detection component to the road surface, and establish a coordinate system with the intersection of the first perpendicular line and the road surface as the origin, wherein the direction of the y-axis in the coordinate system is the same as the direction of the road; Draw a parallel line from the position of the observer to the y-axis of the coordinate system, draw a second perpendicular line from the position of the distance detection component to the parallel line, and calculate a first distance L1 between the intersection of the second perpendicular line and the parallel line and the distance detection component; Acquire in real time a second distance L2 between the current position of the observer and the distance detection component through the distance detection component; According to the formula and formula Calculate the values ​​of x and y, where x is the distance between the current position of the observer and the y-axis of the coordinate system, H is the height distance between the distance detection component and the road surface, and y is the distance between the current position of the observer and the x-axis of the coordinate system; The quadrant of the observer's current location is obtained based on the preset judgment rule, and the positive and negative values ​​of x and y are taken according to the quadrant to obtain the coordinates (x, y) of the observer's current location; The angle ∠α is calculated according to the formula ∠α=90°-arccos(H / L2), and the current position information of the observer is obtained according to the coordinates (x, y) of the current position of the observer.

2. The street lighting control method according to claim 1, characterized in that: The step of controlling the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information specifically includes: Based on a preset correspondence between the movement information and the control signal, obtaining a control signal corresponding to the movement information, wherein the control signal includes a brightness signal and an angle signal; The brightness of the lighting module of the street lamp is controlled according to the brightness signal, and the illumination angle of the street lamp is controlled according to the angle signal.

3. The street lighting control method according to claim 2, characterized in that: The detection mechanism further includes a communication module. After the step of calculating the movement information of the observer, the method further includes: The mobile information is transmitted to the communication modules of all street lamps within its communication range through the communication module.

4. The street lighting control method according to claim 3, characterized in that: Before the step of determining whether there is an observer in the detection area of ​​the detection mechanism, the method further includes: Detecting whether the communication module receives mobile information; If yes, the received mobile information is confirmed as auxiliary mobile information; Before the step of controlling the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information, the method further includes: Acquire a corresponding auxiliary brightness signal according to the auxiliary movement information; Determining whether the auxiliary brightness signal is greater than a preset brightness threshold; If yes, then obtain a corresponding angle signal according to the calculated movement information, and obtain a preset default brightness signal, control the brightness of the lighting module of the street lamp according to the default brightness signal, and control the illumination angle of the street lamp according to the angle signal; If not, the step of controlling the brightness and illumination angle of the lighting module of the street lamp according to the calculated movement information is executed.

5. The street lighting control method according to claim 1, characterized in that: The distance detection component includes a microwave distance sensor and an infrared distance sensor arranged in parallel, and the step of obtaining the second distance L2 between the observer's current position and the distance detection component in real time through the distance detection component includes: Acquiring a third distance between the observer's current position and the microwave distance sensor through the microwave distance sensor; Acquiring a fourth distance between the current position of the observer and the microwave distance sensor by means of the infrared distance sensor; Determine whether the absolute value of the difference between the first distance and the fourth distance is less than or equal to a preset error threshold; If so, the average value of the third distance and the fourth distance is taken as the second distance L2 between the current position of the observer and the distance detection component.

6. A street lamp, characterized in that: The method comprises a street lamp body and a detection mechanism arranged on the street lamp body, wherein the street lamp body comprises a lamp pole, a lamp housing arranged on the lamp pole and a plurality of lighting modules rotatably arranged in the lamp housing, wherein the detection mechanism comprises a controller, a servo motor, a dimming unit and a distance detection component, wherein the controller is respectively connected to the servo motor, the dimming unit and the distance detection component, wherein the servo motor controls the rotation of the plurality of lighting modules according to a control signal received from the controller, wherein the dimming unit controls the input current of the lighting module according to a control signal received from the controller so as to control the brightness of the lighting module, wherein the distance detection component is used to transmit the detected distance between the observer and the distance detection component to the controller, and wherein the controller is used to execute the street lamp lighting control method as described in any one of claims 1 to 5.

7. The street lamp according to claim 6, characterized in that: The distance detection component includes a probe base, a hemispherical lens, a microwave distance sensor and an infrared distance sensor. The probe base is arranged on the lamp housing, the hemispherical lens is arranged on the probe base, and the microwave distance sensor and the infrared distance sensor are both located in the hemispherical lens and arranged in parallel on the probe base.

8. The street lamp according to claim 6, characterized in that: The street lamp further comprises a rotating rod rotatably arranged in the lamp housing, the plurality of lighting modules are arranged on the rotating rod, and the servo motor drives the rotating rod to rotate.

9. The street lamp according to claim 6, characterized in that: The detection mechanism also includes a communication module connected to the controller.

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