阅读说明：本技术 一种隧道照明系统的自适应无级调光控制系统及控制方法 (Self-adaptive stepless dimming control system and control method for tunnel lighting system ) 是由 郭桂钦 林慧如 万小准 于海洋 于 2021-09-01 设计创作，主要内容包括：本发明涉及一种隧道照明系统的自适应无级调光控制系统及控制方法,它包括隧道照明灯具、光强检测器、车辆检测器、能见度检测器和无级调光控制器；所述光强检测器、车辆检测器和能见度检测器与所述无级调光控制器连接,所述无级调光控制器控制连接所述隧道照明灯具；本发明的优点在于：在现有隧道照明的无级调光控制系统的基础上,通过增加采集隧道洞内亮度参数及隧道洞内能见度参数来调节隧道照明灯具,可以避免因灯具光通维持率衰减及隧道内能见度低带来的安全隐患,为驾驶员提供安全、舒适的驾驶环境。(The invention relates to a self-adaptive stepless dimming control system and a control method of a tunnel lighting system, which comprises a tunnel lighting lamp, a light intensity detector, a vehicle detector, a visibility detector and a stepless dimming controller, wherein the tunnel lighting lamp is arranged on the tunnel lighting lamp; the light intensity detector, the vehicle detector and the visibility detector are connected with the stepless dimming controller, and the stepless dimming controller is connected with the tunnel lighting lamp in a control mode; the invention has the advantages that: on the basis of the existing stepless dimming control system for tunnel lighting, the tunnel lighting lamp is adjusted by additionally acquiring the brightness parameters and the visibility parameters in the tunnel, so that the potential safety hazard caused by the attenuation of the light flux maintenance rate of the lamp and the low visibility in the tunnel can be avoided, and a safe and comfortable driving environment is provided for a driver.)

1. The utility model provides a stepless dimming control system of self-adaptation of tunnel lighting system which characterized in that: the tunnel lighting device comprises a tunnel lighting lamp, a light intensity detector, a vehicle detector, a visibility detector and a stepless dimming controller; the light intensity detector, the vehicle detector and the visibility detector are connected with the stepless dimming controller, and the stepless dimming controller is connected with the tunnel lighting lamp in a control mode;

the light intensity detectors are arranged inside and outside the tunnel and used for detecting the brightness inside and outside the tunnel and transmitting detection data to the stepless dimming controller;

the vehicle detector is used for detecting the traffic volume of the tunnel and transmitting detection data to the stepless dimming controller;

the visibility detector is used for detecting the visibility in the tunnel and transmitting detection data to the stepless dimming controller;

and the stepless dimming control is used for adjusting and controlling the brightness of the lighting lamp in the tunnel according to the received data.

2. The adaptive stepless dimming control system of the tunnel lighting system as claimed in claim 1, wherein: the stepless dimming controller acquires tunnel traffic volume information according to the data sent by the vehicle detector, and obtains a corresponding proportional coefficient k1 value of the whole-section illumination of the tunnel according to different traffic volumes; and acquiring brightness information outside the tunnel according to the data sent by the light intensity detector, and obtaining a corresponding proportion system k2 value of the lighting of the enhancement section according to different brightness outside the tunnel.

3. The adaptive stepless dimming control system of the tunnel lighting system as claimed in claim 2, wherein: the dimming control strategy of the stepless dimming controller comprises the following steps:

when the change rate of the illumination intensity outside the tunnel from low to high exceeds the preset change rate, starting an adjusting control instruction to adjust and control the brightness of the lamp to change from low to high at a preset smooth speed until the brightness of the lamp in the tunnel reaches k1 multiplied by k2 times of the current brightness outside the tunnel.

4. The adaptive stepless dimming control system of the tunnel lighting system as claimed in claim 2, wherein: the dimming control strategy of the stepless dimming controller further comprises:

when the change rate of the illumination intensity outside the tunnel from high to low exceeds a preset change rate and the time interval from the last lamp regulation is smaller than a preset time threshold, no lamp light regulation is carried out within the preset time threshold; and if the time interval from the last lamp regulation is larger than the preset time threshold, starting a regulation control instruction to regulate and control the brightness of the lamp to change from high to low at a preset smooth speed until the brightness of the lamp in the tunnel reaches k1 multiplied by k2 times of the brightness outside the current tunnel.

5. A self-adaptive stepless dimming control method of a tunnel lighting system is characterized by comprising the following steps: the dimming control method comprises the following steps:

acquiring tunnel external illumination intensity information, and executing a first dimming control strategy when the change rate of the tunnel external illumination intensity from low to high exceeds a preset change rate; when the change rate of the change of the illumination intensity outside the tunnel from high to low exceeds a preset change rate and the time interval from the last lamp regulation is smaller than a preset time threshold, executing a second dimming control strategy;

acquiring brightness information in the tunnel, and determining whether the regulation and control of the lighting lamp are finished or not by comparing the brightness in the tunnel with a regulation and control target brightness value;

and acquiring visibility information in the tunnel, and determining a dimming control strategy according to different visibility.

6. The adaptive stepless dimming control method of the tunnel lighting system according to claim 5, is characterized in that: the first dimming control strategy is: regulating and controlling the brightness of the lamp to change from low to high at a preset smooth speed until the brightness of the lamp in the tunnel reaches k1 multiplied by k2 times of the current brightness outside the tunnel; the second dimming control strategy is: and not adjusting the light within a preset time threshold.

7. The adaptive stepless dimming control method of the tunnel lighting system according to claim 5, is characterized in that: the acquiring of the brightness information in the tunnel and the comparing of the brightness in the tunnel with the brightness value of the regulation target to determine whether the regulation of the lighting lamp is finished specifically comprise: when the brightness value in the tunnel is 0.95-1.05 times of the brightness value of the regulation target, judging that the regulation of the lighting lamp is finished; and when the brightness value in the tunnel is less than 0.95 time of the regulation target brightness value or more than 1.05 times of the regulation target brightness value, judging that the regulation of the lighting lamp is not finished, and continuously executing a regulation control instruction to regulate the brightness of the lighting lamp at a preset smooth speed until the brightness value in the tunnel is 0.95-1.05 times of the regulation target brightness value.

8. The adaptive stepless dimming control method of the tunnel lighting system according to claim 5, is characterized in that: the determining the dimming control strategy according to different visibility includes:

when the visibility value in the tunnel does not exceed a set threshold value, dimming control of the illumination lamp in the tunnel is carried out, the brightness of the lamp is regulated and controlled to change from low to high or from high to low at a preset smooth speed until the brightness of the lamp in the tunnel reaches k1 multiplied by k2 times of the current brightness outside the tunnel;

and when the visibility value in the tunnel exceeds a set threshold value, stopping dimming control of lighting lamp light in the tunnel and starting the lighting lamp in the tunnel to the maximum degree.

9. The adaptive stepless dimming control method of the tunnel lighting system according to claim 5, is characterized in that: the dimming control method further includes: when the stepless dimming controller fails or fire occurs in the tunnel, the dimming control of the lighting lamp in the tunnel is stopped, and the lighting lamp in the tunnel is started to the maximum degree.

10. The adaptive stepless dimming control method of the tunnel lighting system according to any one of claims 5-9, characterized in that: the dimming control method further includes: acquiring tunnel traffic information, and obtaining a corresponding proportional coefficient k1 value of tunnel whole-section illumination according to different traffic; and acquiring brightness information outside the tunnel, and obtaining a corresponding proportion system k2 value of the lighting of the enhancement section according to different brightness outside the tunnel.

Technical Field

The invention relates to the technical field of dimming control, in particular to a self-adaptive stepless dimming control system and a control method for a tunnel lighting system.

Background

The tunnel lighting system is based on the visual characteristics of a driver, and ensures that a vehicle can completely enter, pass through and leave a tunnel area; the tunnel construction develops today, and more adopt stepless dimming mode control tunnel lighting lamps and lanterns.

The existing stepless dimming control system for tunnel illumination is adjusted by acquiring the external brightness parameter of the tunnel and the traffic parameter of the tunnel, and the blind vision effect caused by frequent brightness jump is solved by a reasonable control flow, but the control method has the following defects: 1. in the rated service life of the tunnel lighting lamp, the light flux maintenance rate of the lamp is attenuated, so that the actual brightness value in the tunnel after dimming is lower than a target value, and hidden danger is brought to driving safety; 2. the visibility in the tunnel is reduced due to dust, dense fog and the like brought into the tunnel by the motor vehicle, and if the brightness in the tunnel is insufficient, hidden dangers are brought to the driving safety; therefore, how to adjust and control the illumination light in the tunnel is a problem to be solved at present.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides a self-adaptive stepless dimming control system and a control method of a tunnel lighting system, and solves the defects of the prior tunnel lighting system.

The purpose of the invention is realized by the following technical scheme: a self-adaptive stepless dimming control system of a tunnel lighting system comprises a tunnel lighting lamp, a light intensity detector, a vehicle detector, a visibility detector and a stepless dimming controller; the light intensity detector, the vehicle detector and the visibility detector are connected with the stepless dimming controller, and the stepless dimming controller is connected with the tunnel lighting lamp in a control mode;

the light intensity detectors are arranged inside and outside the tunnel and used for detecting the brightness inside and outside the tunnel and transmitting detection data to the stepless dimming controller;

the vehicle detector is used for detecting the traffic volume of the tunnel and transmitting detection data to the stepless dimming controller;

the visibility detector is used for detecting the visibility in the tunnel and transmitting detection data to the stepless dimming controller;

and the stepless dimming control is used for adjusting and controlling the brightness of the lighting lamp in the tunnel according to the received data.

The stepless dimming controller acquires tunnel traffic volume information according to the data sent by the vehicle detector, and obtains a corresponding proportional coefficient k1 value of the whole-section illumination of the tunnel according to different traffic volumes; and acquiring brightness information outside the tunnel according to the data sent by the light intensity detector, and obtaining a corresponding proportion system k2 value of the lighting of the enhancement section according to different brightness outside the tunnel.

The dimming control strategy of the stepless dimming controller comprises the following steps:

when the change rate of the illumination intensity outside the tunnel from low to high exceeds the preset change rate, starting an adjusting control instruction to adjust and control the brightness of the lamp to change from low to high at a preset smooth speed until the brightness of the lamp in the tunnel reaches k1 multiplied by k2 times of the current brightness outside the tunnel.

The dimming control strategy of the stepless dimming controller further comprises:

when the change rate of the illumination intensity outside the tunnel from high to low exceeds a preset change rate and the time interval from the last lamp regulation is smaller than a preset time threshold, no lamp light regulation is carried out within the preset time threshold; and if the time interval from the last lamp regulation is larger than the preset time threshold, starting a regulation control instruction to regulate and control the brightness of the lamp to change from high to low at a preset smooth speed until the brightness of the lamp in the tunnel reaches k1 multiplied by k2 times of the brightness outside the current tunnel.

An adaptive stepless dimming control method of a tunnel lighting system, the dimming control method comprising:

acquiring tunnel external illumination intensity information, and executing a first dimming control strategy when the change rate of the tunnel external illumination intensity from low to high exceeds a preset change rate; when the change rate of the change of the illumination intensity outside the tunnel from high to low exceeds a preset change rate and the time interval from the last lamp regulation is smaller than a preset time threshold, executing a second dimming control strategy;

acquiring brightness information in the tunnel, and determining whether the regulation and control of the lighting lamp are finished or not by comparing the brightness in the tunnel with a regulation and control target brightness value;

and acquiring visibility information in the tunnel, and determining a dimming control strategy according to different visibility.

The first dimming control strategy is: regulating and controlling the brightness of the lamp to change from low to high at a preset smooth speed until the brightness of the lamp in the tunnel reaches k1 multiplied by k2 times of the current brightness outside the tunnel; the second dimming control strategy is: and not adjusting the light within a preset time threshold.

The acquiring of the brightness information in the tunnel and the comparing of the brightness in the tunnel with the brightness value of the regulation target to determine whether the regulation of the lighting lamp is finished specifically comprise: when the brightness value in the tunnel is 0.95-1.05 times of the brightness value of the regulation target, judging that the regulation of the lighting lamp is finished; and when the brightness value in the tunnel is less than 0.95 time of the regulation target brightness value or more than 1.05 times of the regulation target brightness value, judging that the regulation of the lighting lamp is not finished, and continuously executing a regulation control instruction to regulate the brightness of the lighting lamp at a preset smooth speed until the brightness value in the tunnel is 0.95-1.05 times of the regulation target brightness value.

The determining the dimming control strategy according to different visibility includes:

when the visibility value in the tunnel does not exceed a set threshold value, dimming control of the illumination lamp in the tunnel is carried out, the brightness of the lamp is regulated and controlled to change from low to high or from high to low at a preset smooth speed until the brightness of the lamp in the tunnel reaches k1 multiplied by k2 times of the current brightness outside the tunnel;

and when the visibility value in the tunnel exceeds a set threshold value, stopping dimming control of lighting lamp light in the tunnel and starting the lighting lamp in the tunnel to the maximum degree.

The dimming control method further includes: when the stepless dimming controller fails or fire occurs in the tunnel, the dimming control of the lighting lamp in the tunnel is stopped, and the lighting lamp in the tunnel is started to the maximum degree.

The dimming control method further includes: acquiring tunnel traffic information, and obtaining a corresponding proportional coefficient k1 value of tunnel whole-section illumination according to different traffic; and acquiring brightness information outside the tunnel, and obtaining a corresponding proportion system k2 value of the lighting of the enhancement section according to different brightness outside the tunnel.

The invention has the following advantages: on the basis of the existing stepless dimming control system for tunnel lighting, a tunnel lighting lamp is adjusted by additionally acquiring brightness parameters and visibility parameters in a tunnel hole, so that potential safety hazards caused by attenuation of light flux maintenance rate of the lamp and low visibility in the tunnel can be avoided, and a safe and comfortable driving environment is provided for a driver.

Drawings

FIG. 1 is a schematic flow diagram of the process of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application provided below in connection with the appended drawings is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application. The invention is further described below with reference to the accompanying drawings.

The invention relates to a self-adaptive stepless dimming control system of a tunnel lighting system, which comprises a tunnel lighting lamp, a light intensity detector, a vehicle detector, a visibility detector and a stepless dimming controller, wherein the tunnel lighting lamp is provided with a light source; the light intensity detector, the vehicle detector and the visibility detector are connected with the stepless dimming controller, and the stepless dimming controller is connected with the tunnel lighting lamp in a control mode;

the light intensity detectors are arranged inside and outside the tunnel and used for detecting the brightness inside and outside the tunnel and transmitting detection data to the stepless dimming controller;

the vehicle detector is used for detecting the traffic volume of the tunnel and transmitting detection data to the stepless dimming controller;

the visibility detector is used for detecting the visibility in the tunnel and transmitting detection data to the stepless dimming controller;

and the stepless dimming control is used for adjusting and controlling the brightness of the lighting lamp in the tunnel according to the received data.

The stepless dimming controller acquires tunnel traffic volume information according to the data sent by the vehicle detector, and obtains a corresponding proportional coefficient k1 value of the whole-section illumination of the tunnel according to different traffic volumes; and acquiring brightness information outside the tunnel according to the data sent by the light intensity detector, and obtaining a corresponding proportion system k2 value of the lighting of the enhancement section according to different brightness outside the tunnel.

When k1 is equal to the current traffic volume/the road design traffic volume, the maximum value is 1, and when k2 is equal to the current outside-tunnel brightness/the lighting design outside-tunnel brightness, the maximum value is 1.

The dimming control strategy of the stepless dimming controller comprises the following steps:

when the change rate of the illumination intensity outside the tunnel from low to high exceeds the preset change rate, starting an adjusting control instruction to adjust and control the brightness of the lamp to change from low to high at a preset smooth speed until the brightness of the lamp in the tunnel reaches k1 multiplied by k2 times of the current brightness outside the tunnel.

The dimming control strategy of the stepless dimming controller further comprises:

when the change rate of the illumination intensity outside the tunnel from high to low exceeds a preset change rate and the time interval from the last lamp regulation is smaller than a preset time threshold, no lamp light regulation is carried out within the preset time threshold; and if the time interval from the last lamp regulation is larger than the preset time threshold, starting a regulation control instruction to regulate and control the brightness of the lamp to change from high to low at a preset smooth speed until the brightness of the lamp in the tunnel reaches k1 multiplied by k2 times of the brightness outside the current tunnel.

As shown in fig. 1, another embodiment of the present invention relates to an adaptive stepless dimming control method for a tunnel lighting system, the dimming control method comprising:

(1) and acquiring tunnel traffic information, and acquiring a corresponding proportional coefficient k1 value of the whole-section illumination of the tunnel according to different traffic.

(2) Acquiring the brightness information outside the tunnel, obtaining the corresponding proportional coefficient k2 value of the lighting of the enhancement section according to different brightness outside the tunnel, and executing the following control strategy:

when the change rate of the illumination intensity outside the tunnel exceeds the preset change rate, immediately starting a regulation instruction, and smoothly regulating and controlling the brightness of the lamp to change from low to high at a certain speed until the brightness inside the tunnel reaches k1 multiplied by k2 times of the current brightness outside the tunnel;

and when the change rate of the illumination intensity outside the tunnel from high to low exceeds the preset change rate and the time interval from the last lamp regulation is less than the preset time threshold (5min), not regulating the light within the preset time threshold.

(3) And acquiring the brightness information in the tunnel, and determining whether the regulation and control of the lighting lamp are finished or not by comparing the brightness in the tunnel with the brightness value of the regulation and control target. The method specifically comprises the following steps: the acquiring of the brightness information in the tunnel and the comparing of the brightness in the tunnel with the brightness value of the regulation target to determine whether the regulation of the lighting lamp is finished specifically comprise: when the brightness value in the tunnel is 0.95-1.05 times of the brightness value of the regulation target, judging that the regulation of the lighting lamp is finished; and when the brightness value in the tunnel is less than 0.95 time of the regulation target brightness value or more than 1.05 times of the regulation target brightness value, judging that the regulation of the lighting lamp is not finished, and continuously executing a regulation control instruction to regulate the brightness of the lighting lamp at a preset smooth speed until the brightness value in the tunnel is 0.95-1.05 times of the regulation target brightness value.

(4) Acquiring visibility information in a tunnel, and determining a control strategy according to different visibility:

when the visibility value in the tunnel does not exceed a set value, dimming control of the lighting lamp in the tunnel can be performed, and the brightness of the lamp is regulated and controlled to change from low to high or from high to low at a preset smooth speed until the brightness of the lamp in the tunnel reaches k1 multiplied by k2 times of the current brightness outside the tunnel;

when the visibility value in the tunnel exceeds a set value, no matter the current illumination situation in the tunnel, the dimming control of the illumination lamp in the tunnel is stopped, and the illumination lamp in the tunnel is started to the maximum degree.

(5) When the stepless dimming controller fails and the tunnel fire condition is confirmed to be correct, the dimming control of the tunnel lighting lamp is stopped no matter the current situation of the tunnel lighting, and the tunnel lighting lamp is started to the maximum degree.

Generally, the system is placed in a programmed mode; under special conditions, such as natural disasters, major activities and the like, a manual mode can be adopted, and the brightness of the lighting lamp can be manually adjusted by managers.

The invention increases the brightness parameter in the tunnel and the visibility parameter in the tunnel by collecting the brightness parameter in the tunnel and the visibility parameter in the tunnel on the basis that the traditional stepless dimming control system for tunnel lighting is adjusted by collecting the brightness parameter outside the tunnel and the traffic parameter of the tunnel, so that the perception capability of the lighting system is stronger, and the stepless dimming control for tunnel lighting is completed in a self-adaptive mode.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.