TW201904353A - Energy-saving street light system - Google Patents

Abstract

The present invention relates to an energy-saving street lamp system, and more particularly, to an energy-saving street lamp system using images to visually detect the change of an optical pattern caused by an object on a road to control brightness of a street lamp. The present invention includes a plurality of illumination units, two detection units, and at least one image processing unit. The present invention uses a hardware design in which an image capture module of a camera is configured to visually detect a shape change of an optical pattern emitted by a laser light emitting module, to effectively arrange the detection units for emitting optical patterns on the foremost and rearmost street lamp devices along the road traveling direction, so as to adjust the brightness of the street lamp devices through the shape change of the optical pattern caused by the object. Thereby, the present invention can reliably enhance or reduce the brightness of the street lamp device based on whether an object passes the road, and achieve the effect of energy saving.

Description

   Energy-saving street light system   

The invention relates to an energy-saving street lamp system, in particular to an energy-saving street lamp system that uses images to visually detect changes in optical patterns caused by objects on the road to adjust the brightness of the street lamp.

According to the press, the main function of the general street light device is to provide lighting at night. Pedestrians need to rely on the lighting of the street light device or the headlight of the vehicle to maintain the safety of the line; however, traditional street light devices are turned on or off at a fixed time, such as Starting from 6 pm to 6 am the next day, and during these 12 hours, whether there are vehicles or pedestrians passing by on the road, or on a more remote or mountain road, the street lights that are turned on all the time are likely to cause waste of power resources And increase the cost of electricity for government units; In addition, the street lights that are turned on all the time are also likely to cause the stability and brightness of the light bulb to decline in efficiency and increase the cost of repairs for government units.

The new patent No. M447520 of the Republic of China "Intelligent Energy-saving Street Lamp Automatic Opening and Closing Structure" is used to solve the above problems. This patent includes a plurality of street lamp control devices, each of which is located on a street lamp and between the street lamps. A wire is connected, and is connected to a power source through the wire to provide the power required by the street lamp, and the street lamp is provided with a switch to open and close the street lamp, wherein a street lamp control device includes a sensing module, a transmission unit and a receiving unit, The sensing module and the transmission unit are electrically connected to the switch, respectively, and the transmission unit is electrically connected to the receiving unit of another street lamp control device through a wire; thereby, the effect of turning on the street lamp in sections, saving energy, saving electricity and guiding road conditions are achieved ; This patent is mainly to detect the vehicles on the road through one of the sensing elements such as infrared sensing module or ultrasonic sensing module installed on the street lamp to make the street lamp shine, and drive a Street lights within the predetermined range are all turned on; however, this patent uses infrared sensors or ultrasonic sensors to detect vehicles that are prone to problems with low accuracy, and these sensors are also in poor weather conditions There are shortcomings of undetectable objects; therefore, how to effectively use the innovative hardware design to effectively respond to the presence or absence of vehicles or pedestrians on the road to increase or decrease the brightness of the street lamp device is still an energy-saving street lamp system and other related industries Developers and related researchers need to continuously strive to overcome and solve the problems.

Now, in view of the fact that the above-mentioned traditional street lamp system still has many shortcomings in actual implementation, the inventor is a tireless spirit, and is improved by its rich professional knowledge and many years of practical experience, and improved Accordingly, the present invention was developed.

The main purpose of the present invention is to provide an energy-saving street lamp system, in particular to an energy-saving street lamp system that uses images to visually detect changes in the optical pattern caused by objects on the road to adjust the brightness of the street lamp, mainly by the image capture of the camera The hardware design of the image visual detection such as the shape change of the optical pattern emitted by the laser light emitting module and the module detection, effectively sets the detection of the emitted optical pattern on the front and rear street light devices according to the direction of road travel The unit adjusts the brightness of the street light device based on the change in the shape of the optical pattern caused by the passing objects, and indeed achieves the effect of increasing or decreasing the brightness of the street light device corresponding to whether there are objects passing through the road, and achieving the energy-saving effect.

In order to achieve the above-mentioned implementation objective, the inventor proposes an energy-saving street lamp system, which includes at least a plurality of lighting units, two detection units, and at least one image processing unit; a plurality of lighting units, each lighting unit includes a plurality of A street lamp device arranged side by side along the traveling direction of a road, each street lamp device includes a lamp holder, a lamp cover connected to the lamp holder, a lighting element arranged inside the lamp cover, and a control module electrically connected to the lighting element Group, in which the control module adjusts the brightness of the lighting element to provide illumination of at least one object on the road, and the street light device is electrically connected to each other through the control module; the two detection units are correspondingly provided on the two street light device Each detection unit includes a light emitting module, an image capture module corresponding to the light emitting module, and a transfer module electrically connected to the image capture module, wherein the light emitting module emits a A light beam with an optical pattern is on the road, and the optical pattern is changed by being irradiated on the object. The image capturing module uses a built-in optical lens to capture the image of the object and optical pattern on the road. Imaging on a photosensitive element connected sexually, and the transfer module transfers the image captured by the image capture module; at least one image processing unit is provided on the street light device and is electrically connected to the control module and the transfer module, The image processing unit corresponds to the image transmitted by the receiving and transmitting module to identify the state of the optical pattern in the image. When the optical pattern changes due to contact with the object, the image processing unit transmits a plurality of control signals to the control module. To control the brightness of the lighting element.

As mentioned above, in the energy-saving street lamp system, the energy-saving street lamp system may be further provided with a storage unit, which is electrically connected to the image capture module to store the image captured by the image capture module.

The energy-saving street lamp system as described above, wherein the energy-saving street lamp system may be further provided with at least one transmission unit, which is electrically connected to the image capture module to transmit the image captured by the image capture module to a back end system.

As mentioned above, in the energy-saving street lamp system, the object is one of a large vehicle, a special vehicle, a small vehicle, a locomotive, a bicycle or a pedestrian, or a combination of two or more.

In the energy-saving street lamp system as described above, the detection unit is arranged on the front and rear street lamp devices provided along the road traveling direction.

In the energy-saving street lamp system as described above, the light-emitting module is one of laser, light-emitting diode, or light-emitting element for outputting a light beam.

As mentioned above, in the energy-saving street lamp system, the optical pattern is one of grids, straight lines, regularly arranged points, or irregularly arranged points.

As mentioned above, in the energy-saving street lamp system, the optical lens is a device such as a fisheye lens, a wide-angle lens, or a standard lens.

In the energy-saving street lamp system as described above, the photosensitive element is one of a photocoupler (Charge Coupled Device, CCD) or a complementary metal oxide semiconductor (Complementary Metal-Oxide-Semiconductor, CMOS) and other devices.

In the energy-saving street lamp system as described above, the light-emitting module may further be a flashing light source. The flashing frequency of the flashing light source is the same as the frequency of the image capturing module capturing the image.

In the energy-saving street lamp system as described above, the image processing unit can further compare the difference between the image before and after the image capturing module captures to determine the change of the optical pattern.

In this way, the energy-saving street lamp system of the present invention is mainly designed by the hardware design of image visual detection such as the shape change of the optical pattern emitted by the laser light-emitting module by the image capture module of the camera, which effectively depends on the direction of road travel A detection unit that emits optical patterns is provided on the front and rear street light devices to adjust the light and shade of the street light device to change the shape of the optical patterns caused by the passing objects, and indeed to achieve whether the corresponding road passes through and increases or decreases. The brightness of the street light device and the energy saving effect; in addition, the image capturing unit of the energy-saving street light system of the present invention activates the recording function when the object causes the optical pattern to change, and simultaneously transmits the captured image To the storage system and the police unit rear end system, in order to achieve the effect of video recording, evidence search and report; the energy-saving street lamp system of the present invention is mainly through the setting of light emitting modules such as laser elements, which is effective at night or weather The poor environment provides optical patterns so that the image capture unit can clearly capture and identify, effectively solving the problem of low accuracy caused by the use of infrared and other sensing elements in traditional street light devices, and indeed achieving accurate detection of the presence of vehicles or pedestrians. Provide appropriate lighting to maintain the advantages of pedestrians or driving safety.

(1) ‧‧‧Lighting unit

(11) ‧‧‧Street light device

(111) ‧‧‧lamp holder

(112) ‧‧‧Shade

(113) ‧‧‧Lighting components

(1131) ‧‧‧ lightness

(114) ‧‧‧Control module

(12) ‧‧‧The first street light device

(13) ‧‧‧Second street light device

(14) ‧‧‧The third street light device

(2) ‧‧‧Road

(3) ‧‧‧ Object

(4) ‧‧‧detection unit

(41) ‧‧‧Light module

(411) ‧‧‧beam

(4111) ‧‧‧Optical pattern

(42) ‧‧‧Image capture module

421) ‧‧‧Optical lens

(422) ‧‧‧Sensor

(43) ‧‧‧transfer module

(5) ‧‧‧Image processing unit

(6) ‧‧‧Storage unit

(7) ‧‧‧Transmission unit

(8) ‧‧‧Back-end system

Figure 1: Block diagram of the system architecture of a preferred embodiment of the energy-saving street lamp system of the present invention

Figure 2: A schematic diagram of the first street lamp device architecture of a preferred embodiment of the energy-saving street lamp system of the present invention

Figure 3: Schematic diagram of the system operation of a preferred embodiment of the energy-saving street lamp system of the present invention

In order to facilitate your examination committee to understand the technical features, content, advantages and achievable effects of the present invention, the present invention is described in detail in conjunction with the drawings and in the form of expressions of the embodiments, and the drawings used therein, Its purpose is only for illustration and supplementary description, and may not be the true scale and precise configuration after the implementation of the present invention, so it should not be interpreted and limited to the relationship between the scale and the configuration of the attached drawings, and the scope of the present invention in the actual implementation is limited , He Xianming.

First, please refer to FIGS. 1 to 3, which is a block diagram of the system architecture of a preferred embodiment of the energy-saving street lamp system of the present invention, a schematic diagram of the architecture of the first street lamp device, and a schematic diagram of the system operation. The energy-saving street lamp system of the present invention The system includes at least: a plurality of lighting units (1), each lighting unit (1) includes a plurality of street lamp devices (11) arranged side by side along the direction of travel of a road (2), each street lamp device (11) ) Includes a lampholder (111), a lampshade (112) connected to the lampholder (111), a lighting element (113) disposed inside the lampshade (112), and a control to electrically connect the lighting element (113) A module (114), wherein the control module (114) adjusts the brightness (1131) of the lighting element (113) to provide illumination of at least one object (3) on the road (2), and the street lamp device (11) is borrowed The control module (114) is electrically connected to each other; in a preferred embodiment of the present invention, a plurality of lighting units (1) are sequentially arranged along the traveling direction of the road (2), and each lighting unit (1) It includes three street lamp devices (11) arranged side by side, namely a first street lamp device (12), a second street lamp device (13), and a third street lamp device (14), and each street lamp device (11) ) Is composed of a lamp holder (111), a lamp cover (112), a light emitting element (113), and a control module (114), wherein the lamp cover (112) is connected to the lamp holder (111), Moreover, a light emitting element (113) and a control module (114) are provided inside the lampshade (112), and the control module (114) controls the brightness (1131) of the lighting element (113) to provide the road (2) At least one object (3) is used for lighting; in addition, the object (3) is a large car, special car, small car, locomotive, bicycle or pedestrian walking on the road (2), etc. One aspect or a combination of the two or more. In a preferred embodiment of the present invention, the object (3) is a small car; however, it must be noted that the street lamp device (1) provided in the above lighting unit (1) The number of 11) and the type of objects (3) are for convenience of description, not limited to the scope of the present invention, and those skilled in the art should know the number of different street lamp devices (11) as long as they can detect different objects (3) Entering and leaving the area illuminated by the lighting unit (1) will not affect the actual implementation of the present invention; the second detection unit (4) is correspondingly installed on the two-way light device (11), each detection unit (4) It includes a light emitting module (41), an image capturing module (42) corresponding to the light emitting module (41), and a transmission module electrically connected to the image capturing module (42) (43), wherein the light emitting module (41) emits a light beam (411) including an optical pattern (4111) on the road (2), and the optical pattern (4111) is changed by being irradiated on the object (3) , Image capture module (4 2) A built-in optical lens (421) is used to capture the images of the object (3) and the optical pattern (4111) on the road (2) to image on a photosensitive element (422) electrically connected thereto, and The transfer module (43) transfers the image captured by the image capture module (42); in addition, the detection unit (4) is set at the forefront and the rearmost side set along the traveling direction of the road (2) Street light device (11); In addition, the light emitting module (41) is one of laser, light emitting diode or light emitting element used to output a light beam, etc .; in addition, the optical pattern (4111) is a net Grid, straight line, regularly arranged points or irregularly arranged points, etc. Furthermore, the optical lens (421) is one of the devices such as fisheye lens, wide-angle lens or standard lens; in addition, the photosensitive element (422) It is one of photoelectric coupling device (CCD) or complementary metal oxide semiconductor (CMOS) and other devices; in a preferred embodiment of the present invention, the detection unit (4) is arranged along the road (2) The front and rear street light devices (11) set in the direction of travel, that is, the detection unit (4) are respectively provided on the first street light device (12) and the third street light device (14) to detect The light-emitting module (41) built in the unit (4) in the form of a laser beam emits a light beam (411) containing an optical pattern (4111) with a linear pattern and irradiates the road (2), and emits light The optical lens (421) built in the fish-eye lens form of the image capturing module (42) corresponding to the module (41) captures the objects (3) and optical patterns (4111) on the road (2) The image is imaged on a photosensitive metal element (422) in the form of a complementary metal oxide semiconductor (CMOS) connected to the optical lens (421), and then transferred to the image processing unit (5) through the transfer module (43); however, it must be noted Yes, the location of the above-mentioned detection unit (4) is for convenience of description, not limited to the scope of the present invention, and those skilled in the art should know the location of different detection units (4) as long as they can detect The appearance of the object to be measured (3) does not affect the actual implementation of the invention; and at least one image processing unit (5) is provided on the street light device (11) and electrically connected to the control modules ( 114) and the transfer module (43), wherein the image processing unit (5) corresponds to receive the image transmitted by the transfer module (43) to identify the state of the optical pattern (4111) in the image, when the optical pattern (4111) When a change occurs due to contact with the object (3), the image processing unit (5) transmits a plurality of control signals to the control module (114) to control the brightness (1311) of the lighting element (113); In a preferred embodiment, the image processing unit (5) is provided on the first street light device (12); please refer to FIG. 3 again, the detection unit (4) provided on the first street light device (12) ) The built-in light emitting module (41) emits optical patterns (4111 ) And illuminate on the road (2), and the optical lens (421) of the image capture module (42) captures the image of the optical pattern (4111) to be imaged on the photosensitive element (422) and passes through the transfer module (43) ) To the image processing unit (5) which is also erected on the first street light device (12). When the object (3) of the small car enters the irradiation range of the first street light device (12), the optical pattern (4111) is caused by The shape change occurs when the object (3) is irradiated on the small car vehicle. When the image processing unit (5) recognizes the optical pattern (4111) and the shape change occurs, a first control signal is transmitted to each control module (114) In order to adjust the brightness (1311) emitted by the lighting element (113) to full brightness (as indicated by the thick broken line in the figure), the object (3) of the small car enters the third street light device (14) In the irradiation range, the optical pattern (4111) emitted by the light emitting module (41) provided on the third street lamp device (14) also changes in shape due to the irradiation on the object (3). When the image processing unit (5) recognizes After the shape of the optical pattern (4111) changes, a second control signal is transmitted to each control module (114) to adjust the brightness (1311) emitted by the lighting element (113) to the darker one Brightness; In addition, since the lighting unit (1) on the left side of Figure 3 has no objects (3) passing by on the road (2), the shape of the optical pattern (4111) recognized by the image processing unit (5) remains unchanged, then The image processing unit (5) transmits a third control signal to each control module (114) to adjust the brightness (1311) emitted by the lighting element (113) to a darker brightness (as shown in the figure) (The thinner dotted line represents); however, it must be noted that the number and location of the image processing units (5) are for convenience of description, not limited to the scope of the present invention, and those skilled in the art should know As long as the number and location of different image processing units (5) can detect the change of the shape of the optical pattern (4111) caused by the object (3), it will not affect the actual implementation of the present invention.

In addition, the energy-saving street lamp system (1) of the present invention may be further provided with a storage unit (6), which is electrically connected to the image capture module (42) to store the image capture module (42) The captured image; in a preferred embodiment of the invention, the image capture module (42) is electrically connected to the storage unit (6) to cause the shape of the optical pattern (4111) to change in the object (3) At the same time, images of objects (3) on the road (2) are simultaneously captured by video recording and stored in the storage unit (6) for the user to check.

Furthermore, the energy-saving street lamp system (1) of the present invention is further provided with at least one transmission unit (7), which is electrically connected to the image capture module (42) to convert the image capture module (42) The captured image is transferred to a back-end system (8); in a preferred embodiment of the present invention, the image capture module (42) is electrically connected to the transmission unit (7) to transfer the captured image The image of the object (3) on the taken road (2) is transmitted to the rear end system (8) of the police unit via the transmission unit (7) for police officers to report violations or car accidents.

In addition, the light-emitting module (41) of the present invention is further a flashing light source. The flashing frequency of the flashing light source is the same as the frequency of image capture by the image capture module (42). The image processing unit (5) may further Compare the difference between the image capturing module (42) before and after capturing to determine the change of the optical pattern (4111); in another preferred embodiment of the present invention, the light emitting module (41) is a The blinking light source of the on-off state has the same blinking frequency as the image capturing module (42) captures the image, that is, when the light emitting module (41) emits a light beam (411) with an optical pattern (4111) ) And lights up, the image capture module (42) captures the image of the optical pattern (4111) and sends it to the image processing unit (5), and when the next time the light emitting module (41) goes out, the image The capture module (42) captures the image again and sends it to the image processing unit (5). The image processing unit (5) subtracts the two captured images before and after the time for comparison. The difference between the two images is only the presence or absence of the optical pattern (4111), so the image of the optical pattern (4111) can be left alone after the two images are subtracted, and the image processing unit (5) can more easily determine the optical pattern The shape of (4111) changes to determine whether there is an object (3).

Next, in order to enable your reviewers to further understand the purpose, features, and desired effects of the present invention, the following specific practical examples of the energy-saving street lamp system of the present invention are further proved to be practically applicable to the energy-saving street lamp system of the present invention. Scope, but it is not intended to limit the scope of the present invention in any form; when a local government can save energy consumption, it can install the energy-saving street lamp system of the present invention on the street lamps in the jurisdiction area to capture the image through the camera. The hardware design of image visual detection such as the shape change of the optical pattern (4111) emitted by the group (42) detecting the laser light emitting module (41) is effectively in front of and behind the road (2) The street light device (12) is provided with a detection unit (4) that emits an optical pattern (4111), and the light pattern of the street light device (11) is adjusted by the shape change of the optical pattern (4111) caused by the passing object (3) ( 1311), indeed to achieve the corresponding road (2) with or without objects (3) passing to enhance or weaken the brightness (1311) of the street lamp device (11), and to achieve energy-saving benefits; first, install a plurality of lighting units (1), Each lighting unit (1) includes a plurality of street lamp devices (11) arranged side by side along the direction of travel of a road (2), each street lamp device (11) includes a lamp holder (111), a connection The lampshade (112) of the lamp holder (111), a lighting element (113) disposed inside the lampshade (112), and a control module (114) electrically connected to the lighting element (113), wherein the control module (114) ) Is to adjust the brightness (1311) of the lighting element (113) to provide illumination of at least one object (3) on the road (2), and the street lamp device (11) is electrically connected to each other by the control module (114) Next, prepare two detection units (4), wherein the detection unit (4) is correspondingly provided on the two-way lamp device (11), each detection unit (4) includes a light emitting module (41), a An image capture module (42) corresponding to the light emitting module (41) and a transfer module (43) electrically connected to the image capture module (42), wherein the light emitting module (41) emits a It includes a light beam (411) with an optical pattern (4111) on the road (2). The optical pattern (4111) changes when it is irradiated on the object (3). The image capture module (42) is built in The optical lens (421) captures the image of the object (3) and the optical pattern (4111) on the road (2) to image on a photosensitive element (422) electrically connected thereto, and the transfer module (43) is Transfer the image captured by the image capturing module (42); finally, prepare at least one image processing unit (5), wherein the image processing unit (5) is installed on the street light device (11), and is controlled by electrical connection respectively A module (114) and a transfer module (43), wherein the image processing unit (5) is corresponding to receive the image transferred by the transfer module (43) to identify the optical image in the image When the optical pattern (4111) changes due to contact with the object (3), the image processing unit (43) transmits a plurality of control signals to the control module (114) to control the lighting element (4111) 113) Lightness and darkness (1311); the energy-saving street light system of the present invention adjusts the lightness and darkness (1311) of the streetlight device (11) through the shape change of the optical pattern (4111) caused by the object (3), and indeed reaches the corresponding road ( 2) Whether there are objects (3) passing to enhance or weaken the brightness (1311) of the street light device (11), as well as to achieve energy saving efficiency.

As can be seen from the above implementation description, compared with the prior art, the energy-saving street lamp system of the present invention has the following advantages:

1. The energy-saving street lamp system of the present invention is mainly based on the hardware design of image visual detection such as the shape change of the optical pattern emitted by the laser light-emitting module by the image capturing module of the camera, which effectively depends on the direction of road travel The front and rear street light devices are equipped with a detection unit that emits optical patterns to adjust the brightness of the street light device to change the shape of the optical patterns caused by the passing objects, and indeed to achieve whether the corresponding road passes or not to increase or decrease the street lights. The lightness and darkness of the device, and the energy-saving benefits.

2. The image capturing unit of the energy-saving street lamp system of the present invention activates the recording function at the same time when the object causes the optical pattern to change, and simultaneously transmits the captured images to the storage unit and the rear-end system of the police unit to confirm To achieve the effect of video recording, evidence search and publication.

3. The energy-saving street lamp system of the present invention is mainly provided by a light emitting module such as a laser element, which is effective at night or in an environment with poor weather to provide optical patterns so that the image capturing unit can clearly capture and identify, effectively solving the traditional The problem of low accuracy caused by the use of infrared and other sensing elements in the street light device does indeed accurately detect the presence of vehicles or pedestrians and provide appropriate lighting to maintain the safety of pedestrians or vehicles.

In summary, the energy-saving street lamp system of the present invention can indeed achieve the expected use effect through the embodiments disclosed above, and the present invention has not been disclosed before application, and has fully complied with the provisions and requirements of the Patent Law . I filed an application for a patent for invention in accordance with the law, pleaded for the review, and granted the patent.

However, the illustrations and descriptions disclosed above are only preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention; those who are familiar with the art, according to the characteristic scope of the present invention, do other things Equivalent changes or modifications should be regarded as not departing from the design scope of the present invention.

Claims (11)

    An energy-saving street lamp system at least includes: a plurality of lighting units, each of which includes a plurality of street lamp devices arranged side by side along the direction of travel of a road, each of the street lamp devices includes a lamp holder, a A lampshade connected to the lamp holder, a lighting element disposed inside the lampshade, and a control module electrically connected to the lighting element, wherein the control module adjusts the brightness of the lighting element to provide at least one on the road Lighting of objects, and the street lamp devices are electrically connected to each other through the control modules; two detection units are correspondingly arranged on the two street lamp devices, and each of the detection units includes a light emitting module , An image capture module corresponding to the light emitting module, and a transfer module electrically connected to the image capture module, wherein the light emitting module emits a light beam including an optical pattern on the road , The optical pattern is changed by being irradiated on the object, and the image capturing module uses a built-in optical lens to capture the image of the object on the road and the optical pattern in an electrical connection Imaging on the photosensitive element, and the transfer module transfers the image captured by the image capture module; and at least one image processing unit, which is provided on the street light device, and electrically connects the control modules and The transfer modules, wherein the image processing unit receives the images transferred by the transfer modules correspondingly to identify the patterns of the optical patterns in the images, when the optical patterns change due to contact with the object At this time, the image processing unit transmits a plurality of control signals to the control modules to control the brightness of the lighting elements.         The energy-saving street lamp system as described in item 1 of the patent application range, wherein the energy-saving street lamp system is further provided with a storage unit, the storage unit is electrically connected to the image capture module to store the image capture module Take the image.         The energy-saving street lamp system as described in item 1 of the patent application range, wherein the energy-saving street lamp system is further provided with at least one transmission unit, the transmission unit is electrically connected to the image capture module, to capture the image capture module The captured images are transferred to a back-end system.         The energy-saving street light system as described in item 1 of the scope of patent application, wherein the object is one or a combination of two or more of large vehicles, special vehicles, small vehicles, locomotives, bicycles or pedestrians.         The energy-saving street lamp system as described in item 1 of the scope of the patent application, wherein the detection units are grouped on the front and rear street lamp devices provided along the direction of travel of the road.         The energy-saving street lamp system as described in item 1 of the patent application scope, wherein the light-emitting module is one of a laser, a light-emitting diode, or a light-emitting element for outputting a light beam.         The energy-saving street lamp system as described in item 1 of the patent application scope, wherein the optical pattern is one of a grid, a straight line, a regularly arranged point or an irregularly arranged point.         The energy-saving street lamp system as described in item 1 of the patent application scope, wherein the optical lens is one of a fisheye lens, a wide-angle lens, or a standard lens.         The energy-saving street lamp system as described in item 1 of the patent application range, wherein the photosensitive element is one of a photoelectric coupling element (CCD) or a complementary metal oxide semiconductor (CMOS).         The energy-saving street lamp system as described in item 1 of the patent application range, wherein the light-emitting module is further a blinking light source, and the blinking frequency of the blinking light source is the same as the frequency of the image capturing module capturing images.         An energy-saving street lamp system as described in item 10 of the patent application range, wherein the image processing unit further compares the difference between before and after images captured by the image capturing module to determine the change in the optical pattern.