TW202241213A - Pedestrian intelligent lighting system and control method thereof - Google Patents

Abstract

Present invention discloses a pedestrian intelligent lighting system and a control method thereof. The pedestrian intelligent lighting system includes: an illuminating device for generating an illuminating light projected on an illuminated area covering a pedestrian crossing; a first detecting device configured to detect an ambient lighting condition of the pedestrian crossing; a second detection device configured to detect whether a pedestrian passing through the pedestrian crossing; a control device configured to can be control the lighting device to generate illumination light when the ambient lighting condition of the pedestrian crossing meet the low-vision state, and second detection device detects that a pedestrian entering the pedestrian crossing.

Description

Pedestrian intelligent lighting system and its control method

The invention relates to a pedestrian intelligent lighting system and a control method thereof, in particular to a pedestrian intelligent lighting system and a control method thereof arranged on roads.

Press, the main function of the general street lighting device is to provide lighting at night, and passers-by need to rely on the lighting of the street lighting device or vehicle headlights to maintain the safety of walking; however, the traditional road lighting devices are turned on or off at a fixed time, such as From 6:00 in the evening to 6:00 in the morning of the next day, during these 12 hours, regardless of whether there are vehicles or pedestrians passing by on the road, or on remote or mountainous roads, the street lights that are turned on all the time are likely to cause waste of power resources. This will increase the electricity cost of government units; moreover, the existing street lighting system usually illuminates a wide area with strong light, so it is easy to cause light damage to residential buildings or passers-by in the area around the road.

Therefore, the inventor believes that the above-mentioned defects can be improved, Naite devoted himself to research and combined with the application of scientific principles, and finally proposed an invention with reasonable design and effective improvement of the above-mentioned defects.

The technical problem to be solved by the present invention is to improve the defects of the existing street lighting system.

In order to solve the above problems, an embodiment of the present invention provides a pedestrian intelligent lighting system, which is installed in a pedestrian crossing of a road. The pedestrian intelligent lighting system includes: a lighting device, which is used to generate an illumination light and project it on the pedestrian crossing , the projected range of the illumination light covers the crosswalk and the area near the crosswalk to form an illumination area; a first detection device, the first detection device is configured to detect An ambient lighting condition of the surrounding environment of the crosswalk; a second detection device configured to be capable of detecting a detection covering the crosswalk and the vicinity of the crosswalk area to detect whether there are pedestrians entering the detection area; a control device connected to the lighting device and the first detection device and the second detection device to receive the The signals output by the first detection device and the second detection device, and the lighting device is controlled according to the signals output by the first detection device and the second detection device; wherein, The control device is programmed to detect whether there is a pedestrian entering the detection device through the second detection device when the first detection device detects that the ambient lighting condition meets a low visibility state. In the detection area, and when the second detection device detects that a pedestrian enters the detection area, the lighting device is controlled to generate the illumination light, so as to improve the traffic safety of the pedestrian crossing. Pedestrian visibility.

An embodiment of the present invention also provides a control method for a pedestrian intelligent lighting system. The control method includes: a first detection step: to detect whether the ambient lighting conditions in the area around the pedestrian crossing are detected through the first detection device. It is the low-visibility state; the second detection step is to detect whether a pedestrian enters a detection area covering the crosswalk through the second detection device, so as to determine whether a pedestrian crosses the Pedestrian crossing; lighting step: when the ambient lighting condition is a low visibility state and pedestrians pass through the pedestrian crossing, activate the lighting device to generate lighting rays projected on a road covering the pedestrian crossing lighting area.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention. However, the provided drawings are only for reference and description, and are not intended to limit the present invention.

The following is a specific embodiment to illustrate the implementation of the "pedestrian intelligent lighting system and its control method" disclosed in the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only for simple illustration, and are not drawn according to the actual size, which is stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention. In addition, the term "or" used herein may include any one or a combination of more of the associated listed items depending on the actual situation.

For ease of description, this specification will first introduce the pedestrian intelligent lighting system 100 , and then introduce the control method of the pedestrian intelligent lighting system.

As shown in FIG. 1 to FIG. 3 , the pedestrian intelligent lighting system 100 of the present invention is installed on a pedestrian crossing 2 of a road 1 . The road 1 is provided with a plurality of traffic signal devices 3 , a plurality of pedestrian signal devices 4 , and a signal controller 5 . Wherein the traffic signal device 3 can at least display the green light and the red light signal used to indicate the state of vehicle traffic, and is used to control the crossing of the road and the crosswalk 2 for vehicles, the pedestrian signal The device 4 is arranged at both ends of the crosswalk 2, which can at least display the green light and the red light signal of the pedestrian crossing state, so as to control whether pedestrians can pass through the crosswalk 2.

A signal controller 5 is connected to a plurality of said traffic signal devices 3 and a plurality of said pedestrian signal devices 4 to control the displayed signals of a plurality of said traffic signal devices 3 and a plurality of said pedestrian signal devices 4 and the plurality of traffic signal devices 3 and the plurality of pedestrian signal devices 4 installed at various positions of the intersection of the road can be interlocked with each other.

Referring to FIG. 1 and FIG. 2 , the pedestrian smart lighting system 100 of the present invention includes: a lighting device 110 , a first detection device 120 , a second detection device 130 , and a control device 140 . As shown in Figures 1 and 3, the lighting device 110 is located at the pedestrian crossing 2, and projects illuminating light on the pedestrian crossing 2 to form a bridge covering the pedestrian crossing 2. Lighting area 160 .

More specifically, in this embodiment, the lighting device 110 can be installed on the fixed pole of the traffic signal device 3 or the pedestrian signal device 4, or be installed on the pedestrian through other frames or fixing devices. crosswalk 2, and project the illuminating light to the pedestrian crosswalk 2 through a special optical design. And the lighting device 110 can control the light pattern of the lighting light projected by the lighting device 110 through the light control device (for example: lens, light control cover), so that the lighting light can form a predetermined light pattern , and the shape of the lighting area 160 formed by the lighting light can conform to the shape of the crosswalk 2, so that the lighting area 160 can cover the two ends of the crosswalk 2 in the longitudinal direction. The entrance area, and the adjacent areas on both lateral sides of the crosswalk 2 . Of course, the lighting device 110 is not limited thereto. In other embodiments of the present invention not shown in the figure, the lighting device 110 may also be composed of a plurality of light emitting elements (such as LEDs) arranged in an array, and By adjusting the shape of the array formed by the arrangement of the plurality of light-emitting elements, the illumination light generated by it can form the predetermined light pattern.

In more detail, the lighting area 160 formed by the lighting device 110 projecting light onto the pedestrian crossing 2 is preferably a narrow rectangular or oblong shape that matches the length and width of the pedestrian crossing 2. The shape, and the angle of light projection can avoid direct eyes of pedestrians or drivers, and avoid causing glare and affecting sight.

In particular, the illumination light generated by the illumination device 110 may be pure visible light, or a mixture of visible light and invisible light (for example: infrared light, laser light of invisible wavelength). The purpose of the illuminating light emitted by the illuminating device 110 including invisible light is mainly to provide an auxiliary light source for the invisible light image sensor (for example: infrared image sensor or lidar) used in existing self-driving vehicles, to Improve the recognition ability of the image sensor of the self-driving vehicle.

The illumination area 160 formed by the illumination light generated by the illumination device 110 in the present invention is limited to the pedestrian crossing 2 and the area near the pedestrian crossing 2, and its main purpose is to avoid the The illumination light is projected onto the vehicles traveling on the road 1, as well as the buildings or other optical or electronic devices in the surrounding area of the crosswalk 2, so as to avoid disturbing the driver's driving line of sight, or irritating other passers-by vision, and to avoid the interference of the automatic driving instrument on the vehicle and the surrounding optical or electronic devices (such as road monitors) caused by scattering.

The first detection device 120 is used to detect the ambient lighting conditions of the surrounding environment of the crosswalk 2 . The first detection device 120 can be a light sensor, or an image sensor, and the first detection device 120 can detect the illuminance of the ambient light of the pedestrian crossing 2 through the light sensor, Alternatively, an image of the area around the crosswalk 2 is captured by an image sensor, and then the ambient lighting conditions of the area around the crosswalk 2 are recognized through the image.

The second detection device 130 is used to detect whether pedestrians enter the crosswalk 2 . As shown in FIG. 1 , the second detection device 130 may be a camera device, a millimeter-wave radar, or a sensor such as a LiDAR (LIDAR), and the second detection device 130 is configured to target A detection area covering the crosswalk 2 and the vicinity of the crosswalk 2 is detected to detect whether there are pedestrians in the detection area 150 .

The control device 140 is connected to the lighting device 110 and the first detection device 120 and the second detection device 130 . The control device 140 is configured to receive the detection signals output by the first detection device 120 and the second detection device, and according to the output of the first detection device 120 and the second detection device 130 The signal is based on controlling the lighting device 110 .

The control device 140 is designed to be able to further pass through the second detection device when the first detection device 120 detects that the ambient lighting condition of the pedestrian crossing 2 meets a low visibility state. 130 detects whether a pedestrian enters the detection area 150, and controls the lighting device 110 when the second detection device 130 detects that a pedestrian enters the detection area 150 The illumination light generated is projected on the illumination area 160 of the pedestrian crossing 2 to improve the recognizability of pedestrians passing on the pedestrian crossing 2 .

In particular, the so-called low visibility state in this manual refers to the situation where the driver recognizes whether there are pedestrians crossing the crosswalk due to insufficient illumination of ambient light or interference from other factors. The low visibility state can be based on the light illuminance of the surrounding environment of the crosswalk 2, or the visibility of the crosswalk, for example: the light intensity of the surrounding environment of the crosswalk 2 is lower than a lower limit, or It is the situation where the visibility of the crosswalk 2 is poor due to fog and haze.

In addition, the control device 140 in this embodiment also has a communication unit 141 , and communicates with the signal controller 5 through the communication unit 141 . The control device 140 can obtain the status of the pedestrian signal device 4 displaying the light signal through the signal controller 5, and can be configured so that only when the pedestrian signal device 4 displays a green light and the second detection The lighting device 110 is activated to illuminate only when the detection device 130 detects that a pedestrian enters the detection area 150 .

As shown in Figures 5 to 7, the control device of the present invention is also configured with a control interface display device 142. In this embodiment, the control interface display device 142 can be a computer monitor or a touch display device, so The control interface display device 142 can provide a graphical control screen 143 , and the control screen 143 can display an image or image of an original detection area 150 of the second detection device 130 . And the operator can select a plurality of control points 144 from the control screen 143 through a mouse or a pointing input device, and a circled area 145 is formed around the plurality of control points 144, and the control device 140 then uses the control device 140 The circled area 145 determines the detection area 150 of the second detection device 130 .

More specifically, what the control screen 143 displays is the detection image of the entire detection range of the second detection device 130 without setting, and the operator can Click the control point 144 to form the circled area 145 around it. The circled area 145 can be regarded as the detection range selected by the operator to specify the second detection device 130. In other words, the circled area 145 The selected area 145 is the position in the control screen corresponding to the detection area 150 of the crosswalk 2 that the operator intends to designate.

For example, as shown in FIG. 6 , it is an embodiment in which the second detection device 130 is a camera device, wherein the control screen 143 can be the crosswalk 2 captured by the second detection device 130 , and during the process of setting the detection area 150, the operator can use the mouse or pointing input device to select four points at the beginning and end ends of the crosswalk 2 and nearby areas in the control screen 143. A control point 144, the four control points 144 surround a circled area 145, and the circled area 145 can represent the second detection device that the operator wants to specify in the control screen 143 130 of the detection area 150 . After the procedure of specifying the detection area 150 by the operator is completed, the control device 140 can store the scope of the detection area 150 of the second detection device 130 , and retrieve the detection area by identifying the second detection device 130 Whether there are pedestrians in the detection area 150 in the image to determine whether there are pedestrians passing through the crosswalk 2 .

As shown in FIG. 7 , it is an embodiment in which radar or lidar is used as the second detection device 130 in the present invention. In this embodiment, the control screen 143 displayed by the control interface display device 142 can display Out of an original detection range 146 of the second detection device 130, the original detection range 146 can be the graphics of the original scanning area of the radar or lidar, the operator can use the mouse or pointing input device in the In the control screen 143 , a plurality of control points 144 are selected on the graph of the original detection range 146 to form a circled area 145 around it. A plurality of control points 144 correspond to a plurality of vertices corresponding to the outer periphery of the predetermined detection area of the crosswalk 2 in the control picture, so that the circle defined by the plurality of control points 144 The selected area 145 can correspond to a predetermined detection area 150 . Then the control device 140 can store the range of the detection area 150 of the second detection device 130, and by identifying the image captured by the second detection device 130 within the range of the detection area 150 Whether there is a way to judge whether there are pedestrians passing through the crosswalk 2 .

In addition, when the second detection device 130 of the present invention is a radar or lidar sensor, it can also operate in the same way, and the description will not be repeated in this description.

As shown in Figure 4, it is the control method S100 of the intelligent pedestrian lighting system of the present invention. The control method S100 mainly includes: the first detection step S120, the communication step S130, the signal state confirmation step S140, and the second detection step S150 , and the lighting step S160.

Wherein the first detection step S120 is to detect whether the ambient lighting condition of the surrounding area of the crosswalk 2 is the low visibility state through the first detection device 120 .

The communication step S130 is that the control device 140 communicates with the signal controller 5 through the communication unit 141 , and obtains the status of the display light of the pedestrian signal device 4 . The signal state confirmation step S140 is to confirm whether the light signal displayed by the pedestrian signal device 4 is in a green light state.

The second detection step S150 is to use the second detection device 130 to detect whether there is a pedestrian entering the environment when the ambient lighting condition is low visibility and the pedestrian signal device 4 displays a green light. The detection area 150 is used to determine whether there is a pedestrian crossing the crosswalk 2 .

The lighting step S160 is to activate the lighting device 110 to generate the lighting under the condition that the ambient lighting condition is a low visibility state, the pedestrian signal device 4 displays a green light, and there are pedestrians passing the crosswalk 2 The light is projected on the lighting area to improve the visibility of pedestrians on the crosswalk 2 .

In particular, in the process of the above control method S100, a detection area setting program S200 can also be included, and the detection area setting program S200 includes: a control screen display step S220, a selection step S230, and a detection area determination Step 240. The control screen display step S220 is to display the control screen 143 through a control interface display device 142 , and the control screen 143 includes a graphic of the original detection range of the second detection device 130 . In the selecting step S230, the operator selects a plurality of control points 144 from the control screen 143 through a mouse or a pointing input device, and forms a circled area 145 around the plurality of control points 144 . In the detection area determination step 240, the information of the circled area 145 selected by the operator is stored for the control device 140, and the circled area 145 is used to determine the selected area of the second detection device 130. The above detection area 150.

In addition, in the control method of the present invention, the communication step S130 and the flag state confirmation step S140 are not necessary steps. For example: when the intelligent pedestrian lighting system 100 of the present invention is installed on a pedestrian crossing without a sign, or when the pedestrian sign device 4 is set to a deactivated state during traffic off-peak hours (such as at night), the control method In this case, the communication step S130 and the signal state confirmation step S140 can be omitted. In other words, in this state, the smart pedestrian lighting system 100 of the present invention can be set so that regardless of the state of the light signal displayed by the pedestrian signal device 4 , whenever the ambient lighting is detected by the first detection device 120 When the condition is the low-visibility state, and the second detection device 130 detects that there are pedestrians entering the detection area 150, the lighting device 110 can be controlled to generate light to illuminate the lighting Area 160.

[Advantageous Effects of Embodiment]

One of the beneficial effects of the intelligent pedestrian lighting system and its control method of the present invention is that the environmental lighting conditions can be detected by the first detection device, and whether there are pedestrians passing the crosswalk can be detected by the second detection device, and When the ambient lighting condition is low visibility and there are pedestrians passing through the crosswalk, the lighting device is activated to project lighting light on the crosswalk, so as to improve the recognition of pedestrians passing through the crosswalk. Therefore, the technology of the present invention can enhance the driver's ability to identify pedestrians and reduce the chance of traffic accidents. In addition, through the cooperation of the first detection device and the second detection device in the technology of the present invention, the lighting device can be activated to project light only when the ambient lighting conditions are not good and pedestrians pass through the crosswalk, thus reducing unnecessary Necessary energy waste, and reduce the light pollution caused by the lighting light to the surrounding environment.

Furthermore, the present invention can also determine the detection area of the second detection device by clicking a control point on the graphical control screen, thus making the operation and setting of the intelligent pedestrian lighting system of the present invention more convenient, and Can precisely control the detection range.

The content disclosed above is only a preferred feasible embodiment of the present invention, and does not therefore limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.

1: road 2: Crosswalk 3: Traffic signal device 4: Pedestrian signal device 5: Signal controller 100: Intelligent Pedestrian Lighting System 110: lighting device 120: The first detection device 130: Second detection device 140: Control device 141: Communication unit 142: Control interface display device 143: Control screen 144: Control Point 145: Circle the area 146: Original detection range 150: detection area 160: lighting area S100: Control method S110: Start steps S120: the first detection step S130: Communication steps S140: Confirmation steps of signal state S150: the second detection step S160: Lighting procedure S200: Detection area setting procedure S210: Start steps S220: control screen display steps S230: selection step S240: Detection area determination step

Fig. 1 is a three-dimensional schematic diagram of a road and a pedestrian crossing provided with the intelligent pedestrian lighting system of the present invention.

FIG. 2 is a system block diagram of the pedestrian intelligent lighting system of the present invention.

FIG. 3 is a schematic plan view of a pedestrian intelligent lighting system.

Fig. 4 is a flow chart of the control method of the present invention.

FIG. 5 is a flow chart of the detection area setting procedure in the control method of the present invention.

FIG. 6 is a schematic diagram of the operation method of the detection area setting program in the control method of the present invention.

FIG. 7 is a schematic diagram of the operation method of using radar or lidar to set a program for the detection area of the detection device according to the present invention.

1: road

2: Crosswalk

3: Traffic signal device

4: Pedestrian signal device

5: Signal controller

100: Intelligent Pedestrian Lighting System

110: lighting device

120: The first detection device

130: Second detection device

140: Control device

150: detection area

160: lighting area

Claims (10)

A pedestrian intelligent lighting system is set on a pedestrian crossing of a road, the pedestrian intelligent lighting system includes: A lighting device, used to generate an illuminating light to project on the pedestrian crossing, the projected range of the illuminating light covers the pedestrian crossing and the area near the pedestrian crossing to form an illumination area; a first detection device configured to detect an ambient lighting condition of the environment surrounding the crosswalk; A second detection device, the second detection device is configured to be able to detect a detection area covering the crosswalk and the vicinity of the crosswalk, so as to detect whether a pedestrian enters the crosswalk within the detection area; a control device, connected to the lighting device and the first detection device and the second detection device, for receiving the signals output by the first detection device and the second detection device, and controlling the lighting device according to the signals output by the first detection device and the second detection device; Wherein, the control device is programmed to be able to detect through the second detection device whether there is a pedestrian entering the In the detection area, and when the second detection device detects that a pedestrian enters the detection area, control the lighting device to generate the illumination light to improve the pedestrian crossing. The legibility of passing pedestrians. The pedestrian intelligent lighting system according to claim 1, wherein the lighting light projected by the lighting device is projected on the pedestrian crossing in a predetermined light pattern, so that the lighting area formed by the lighting light matches the pedestrian The shape of the crossing. The pedestrian intelligent lighting system according to claim 2, wherein the lighting light projected by the lighting device is a mixture of visible light and invisible light. The pedestrian intelligent lighting system according to claim 1, wherein the second detection device is one of a camera, a radar, or a lidar. The intelligent lighting system for pedestrians as described in claim 4, wherein the control device is configured with a control interface display device, and the control interface display device provides a control screen, and the control screen can display the information of the second detection device An original detection area, and the operator selects a plurality of control points from the control screen, and forms a circled area surrounded by the plurality of control points, and the plurality of control points correspond to the pedestrian crossing A plurality of vertices on the outer periphery of the detection area of the track; the control device stores the information of the circled area, and determines the detection area of the second detection device through the circled area. The pedestrian intelligent lighting system as described in claim 1, wherein the control device is also connected to a communication unit, and is connected to a signal controller through the communication unit; the control device can communicate with the signal through the communication unit Communicating with the sign controller to obtain the status of the light signal displayed by the pedestrian sign device. A control method for a pedestrian intelligent lighting system, wherein the pedestrian intelligent lighting system is set on a pedestrian crossing, the pedestrian intelligent lighting system has a first detection device, a second detection device, and a control device, the control Methods include: The first detection step: detecting whether the ambient lighting condition of the surrounding area of the crosswalk is the low-visibility state through the first detection device; The second detection step: detecting whether a pedestrian enters a detection area covering the crosswalk through the second detection device, so as to determine whether there is a pedestrian crossing the crosswalk; Illumination step: when the ambient lighting condition is a low-visibility state and pedestrians pass through the crosswalk, activate the lighting device to generate illumination light to project a lighting area covering the crosswalk. The control method of pedestrian intelligent lighting system as described in claim 7, which further includes a communication step and a signal state confirmation step between the first detection step and the second detection step, wherein The communication step is that the control device communicates with a signal controller through a communication unit, and obtains the display light status of the pedestrian signal device installed on the pedestrian crossing; the confirmation step of the signal status is Confirm whether the light signal displayed by the pedestrian signal device is in a green light state. The control method of pedestrian intelligent lighting system as described in claim 7, which also includes a detection area setting program, the detection area setting program includes: Control screen display step: to display a control screen through a control interface display device, the control screen includes graphics of the original detection range of the second detection device; Selecting step: select a plurality of control points from the control screen, and form a circled area surrounded by the control points, and the plurality of control points correspond to the detection area covering the pedestrian crossing vertices of the outer periphery of ; and Detection area determination step: storing the circled area through the control device, and the control device uses the circled area to determine the detection area of the second detection device. The control method of the intelligent lighting system for pedestrians according to claim 7, wherein the detection area and the lighting area cover the pedestrian crossing and the area near the pedestrian crossing.

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