Tunnel guiding system and control method

Abstract

The invention relates to the technical field of traffic safety, and discloses a tunnel guidance system and a control method, in the system, a data acquisition module comprises an environmental data detection device and a vehicle information acquisition device of a tunnel area; the lighting module comprises a lighting lamp located in the tunnel and a lighting lamp located at a tunnel portal. The illumination lamp at the tunnel portal at least comprises two brightness levels; the line-shaped identification module comprises a plurality of identification devices arranged at a tunnel portal and in a tunnel; and the system control module is used for adjusting the luminance of each identification device in the line-shaped identification module and each lighting lamp in the lighting module according to the data acquired by the data acquisition module. According to the scheme, the illumination and identification modules of the tunnel are automatically adjusted according to real-time information such as ambient illumination, meteorological conditions and traffic flow conditions inside and outside the tunnel, and the black frame effect is relieved, so that the visual adaptation experience of a driver is improved, and the driving safety is enhanced.

Description

Technical Field

[0001] The present application relates to the field of traffic safety technology, and in particular to a tunnel guidance system and a control method. Background Art

[0002] In the daytime, when the driver observes the tunnel from a distance outside the tunnel, the tunnel walls, arches, and road surface may appear dark due to the large brightness difference between the inside and outside of the tunnel entrance. The driver can also see the "bright" environment with high brightness outside the tunnel exit. At this time, a "black frame" will appear in the driver's perspective. The "black frame" formed in the shadow will reduce the driver's visual perception performance and increase the difficulty of identifying visual information. This phenomenon is called the "black frame effect."

[0003] The black frame effect not only affects the driver's visual perception, but may also increase the risk of traffic accidents at the tunnel entrance. Traditional tunnel lighting modules and sign modules usually use fixed control schemes and fail to dynamically adjust according to actual lighting conditions, traffic conditions and weather changes, resulting in an unsmooth visual transition and failure to effectively alleviate the black frame effect. Therefore, there is an urgent need for a tunnel guidance system that can effectively alleviate the black frame effect. Summary of the invention

[0004] In view of this, the present application provides a tunnel guidance system and control method, which can effectively alleviate the black frame effect. The technical solution is as follows.

[0005] In a first aspect, a tunnel guidance system is provided, wherein the system is provided with a data acquisition module, a system control module, a linear marking module and a lighting module;

[0006] The data acquisition module includes an environmental data detection device for the tunnel area and a vehicle information acquisition device;

[0007] The lighting module includes a lighting fixture located inside the tunnel and a lighting fixture at the tunnel entrance; the lighting fixture at the tunnel entrance includes at least two brightness levels;

[0008] The linear identification module includes a plurality of identification devices arranged at the tunnel entrance and inside the tunnel;

[0009] The system control module is used to adjust the luminous brightness of each identification device in the linear identification module and each lighting fixture in the lighting module according to the collected data of the data collection module.

[0010] In a possible implementation, the environmental data detection device includes: a meteorological detection device, an illumination sensor, a brightness detection device, and a color temperature sensor;

[0011] The meteorological detection device is arranged at the approach section outside the tunnel to detect the meteorological conditions outside the tunnel; the illumination sensor is arranged at the approach section outside the tunnel and the entrance section inside the tunnel to detect the light intensity inside and outside the tunnel; the brightness detection device is arranged at the entrance section, middle section and exit section inside the tunnel to detect the brightness of the inner wall and road surface of the tunnel; the color temperature sensor is arranged at the entrance section inside the tunnel to measure the color temperature change of the entrance section.

[0012] In one possible implementation, the vehicle information detection device includes a vehicle detection sensor; the vehicle detection sensor includes at least one of an image acquisition device and a radar; the vehicle detection sensor is distributed in the approach section and the departure section outside the tunnel, and is used to detect vehicle information of vehicles passing through the tunnel.

[0013] In a possible implementation, the linear identification module includes: a longitudinal side wall identification, a longitudinal roadside identification, a longitudinal roadside luminous strip, a vertical luminous ring, and a vertical guide column; the lighting module includes: a basic lighting fixture at the opening, an enhanced lighting fixture at the opening, and a lighting fixture inside the opening.

[0014] In a possible implementation, the longitudinal side wall marking includes a waistline and a luminous arrow set on the walls on both sides of the tunnel; the waistline is set using a highly reflective paint;

[0015] The luminous arrow is in the shape of an arrow or a triangle, and is provided with an LED lamp bead as a light source; the LED lamp bead sets a flashing frequency according to the speed of the traffic flow, and the surface of the luminous arrow is affixed with a reversibly reflective orange reflective film;

[0016] The spacing and size of the luminous arrows are set according to the design speed; when the design speed is less than 40km / h, the spacing is set to 20-25m, the vertical length L is 30-35cm, and the longitudinal length W is 20-25cm; when the design speed is between 40-80km / h, the spacing is set to 25-50m, the vertical length L is 40-45cm, and the longitudinal length W is 25-30cm; when the design speed is greater than 80km / h, the spacing is set to 50-100m, the vertical length L is 50-55cm, and the longitudinal length W is 30-35cm;

[0017] The longitudinal roadside signs are set on the sides of the inspection road curbs on both sides of the tunnel. They are 0.5 to 2 meters long and made of aluminum plates with yellow or white reflective film on the surface. The cross section is trapezoidal.

[0018] The spacing of the longitudinal roadside signs is adjusted according to the design speed; when the design speed is less than 40 km / h, the spacing is 6-10 m; when the design speed is between 40 and 80 km / h, the spacing is 10-12.5 m; when the design speed is greater than 80 km / h, the spacing is 12.5-15 m;

[0019] The longitudinal roadside luminous strip is arranged on the side top of the inspection road edge on both sides of the tunnel from the tunnel entrance to the tunnel exit; the longitudinal roadside luminous strip is composed of a longitudinal light strip and a longitudinal lampshade; the longitudinal light strip is composed of LED lamp beads, the lamp beads are set to be always on or set the flashing frequency according to the traffic speed, and the color temperature is adjusted according to the position and the external environment; the lampshade is arranged above the longitudinal light strip, used to shield the light emission of the lamp beads, and the interior is arc-shaped and made of retro-reflective material;

[0020] The vertical guide column is arranged 0.1 to 0.3 m outside the lane markings of the approach section and the departure section outside the tunnel; the vertical guide column is arranged at the outer edge above the inspection road of the entrance section and the exit section inside the tunnel; the height of the vertical guide column is 0.8 to 1.6 m, and its color is fluorescent yellow-green and red, each color is arranged alternately, with a total of 4 to 8 color blocks, and the color block length is 0.2 to 0.4 cm. The surface of the 2 to 4 color blocks at the bottom is only made of reflective film material, and the surface of the 2 to 4 color blocks at the top is not only made of reflective film material, but also has lamp beads inside;

[0021] An indicator arrow is provided above the first vertical guide column in the approach section. The arrow direction is the lower right corner when on the left side of the road, and the arrow direction is the lower left corner when on the right side of the road; an LED light bead is provided inside the indicator arrow; the vertical guide column is set in a range of 50 to 100m in the approach and departure sections of the tunnel, and in a range of 25 to 50m in the entrance and exit sections, with a setting spacing of 5 to 10m.

[0022] In a possible implementation, when the difference in illumination or brightness between the inside and outside of the tunnel does not exceed 25%, the lighting module only uses the basic lighting fixtures at the entrance, and the linear sign module uses the longitudinal side wall sign, longitudinal roadside light strip and vertical light ring light strip or lamp bead lighting; the color temperature of the linear sign module is 3000-3500K at the entrance and exit section, and 6000-7000K in the middle section;

[0023] When the illumination or brightness difference is between 25% and 50%, the lighting module uses the basic lighting fixtures at the entrance and the basic lighting fixtures inside the tunnel, and the linear sign module uses the light strips or lamp beads of the longitudinal side wall signs, longitudinal roadside light strips, vertical light rings and vertical guide columns; the color temperature of the linear sign module is 2500-3000K at the entrance and exit section, and 5000-6000K in the middle section;

[0024] When the illumination or brightness difference exceeds 50%, the lighting module activates the basic lighting fixtures at the opening, the enhanced lighting fixtures at the opening and the basic lighting fixtures inside the opening; the linear sign module activates the light strips or lamp beads of the longitudinal side wall signs, longitudinal roadside light strips, vertical light rings, and vertical guide columns, and turns on the spotlights in the vertical light rings to further enhance the brightness inside the opening; the color temperature of the linear sign module at the entrance and exit sections is 2000~2500K, and the color temperature in the middle section is 4000~5000K.

[0025] In one possible implementation, the system control module is used to adjust the working states of the basic entrance lighting fixtures, entrance enhancement lighting fixtures, interior lighting fixtures, longitudinal side wall markings, longitudinal roadside light strips, vertical light rings and vertical guide columns according to the illumination difference or brightness difference inside and outside the tunnel.

[0026] In a possible implementation, the system control module is further configured to turn off the entrance enhancement lighting fixtures in the lighting module, the tunnel lighting fixtures, and each identification device in the linear identification module when there is no vehicle within the decision sight distance of the tunnel entrance and there is no vehicle passing through the tunnel;

[0027] The decision sight distance length DSD=0.278*v*t, wherein v is the design speed of the tunnel and t is the preset maneuvering time.

[0028] In one possible implementation, the system control module is used to determine the control range inside the tunnel based on the position of the vehicle from the tunnel entrance portal and the decision-making sight distance length, so as to adjust the working states of the basic entrance lighting fixtures, entrance enhancement lighting fixtures, interior lighting fixtures, longitudinal side wall markings, longitudinal roadside light strips, vertical light rings and vertical guide columns within the control range.

[0029] In a possible implementation, the control range of the guidance system inside the tunnel is Where R is the radius of the tunnel, W is the width of the tunnel interface, and a is the distance between the driver and the center line of the lane.

[0030] In a second aspect, a tunnel guidance system control method is provided, the method being executed by a system control module in the above system, the method comprising:

[0031] Acquire collected data; the collected data is collected by a data collection module; the data collection module includes an environmental data detection device and a vehicle information collection device in the tunnel area;

[0032] According to the collected data, the light brightness of each identification device in the linear identification module and each lighting fixture in the lighting module is adjusted.

[0033] In a third aspect, a tunnel guidance system control device is provided, the device being arranged in a system control module of the above system, the device comprising:

[0034] A data acquisition module is used to obtain collected data; the collected data is collected by the data acquisition module; the data acquisition module includes an environmental data detection device and a vehicle information collection device in the tunnel area;

[0035] The lighting control module is used to adjust the luminous brightness of each identification device in the linear identification module and each lighting fixture in the lighting module according to the collected data.

[0036] In a third aspect, a computer device is provided, comprising a processor and a memory, wherein the memory stores at least one instruction, and the at least one instruction is loaded and executed by the processor to implement the above-mentioned tunnel guidance system control method.

[0037] In a fourth aspect, a computer-readable storage medium is provided, wherein at least one instruction is stored in the storage medium, and the at least one instruction is loaded and executed by a processor to implement the above-mentioned tunnel guidance system control method.

[0038] In a fifth aspect, a computer program product or a computer program is provided, wherein the computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the tunnel guidance system control method.

[0039] The technical solution provided by this application may have the following beneficial effects:

[0040] The tunnel guidance system shown in the present application is provided with a data acquisition module, a system control module, a linear identification module and a lighting module, and the data acquisition module includes an environmental data detection device and a vehicle information collection device of the tunnel area; the lighting module includes lighting fixtures located inside the tunnel and lighting fixtures at the tunnel entrance; the lighting fixtures at the tunnel entrance include at least two brightness levels; the linear identification module includes a plurality of identification devices arranged at the tunnel entrance and inside the tunnel. At this time, the system control module can adjust the luminous brightness of each identification device in the linear identification module and each lighting fixture in the lighting module according to the collected data of the data acquisition module, that is, the environmental data of the tunnel area and the vehicle information approaching the tunnel or traveling in the tunnel, thereby realizing automatic adjustment of the lighting and identification modules of the tunnel according to real-time information such as ambient light, meteorological conditions, and traffic conditions inside and outside the tunnel, alleviating the black frame effect, thereby improving the driver's visual adaptation experience and enhancing driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 The present invention is a system block diagram of a tunnel guidance system according to an exemplary embodiment.

[0043] Figure 2 A schematic diagram of the setting of the data acquisition module involved in the embodiment of the present application is shown.

[0044] Figure 3 A schematic diagram of the side layout of a linear identification module and a lighting module involved in an embodiment of the present application is shown.

[0045] Figure 4 A schematic diagram of partial facility control of a linear identification module involved in an embodiment of the present application is shown.

[0046] Figure 5 A structural schematic diagram of a luminous arrow involved in an embodiment of the present application is shown.

[0047] Figure 6 A schematic structural diagram of a vertical luminous ring involved in an embodiment of the present application is shown.

[0048] Figure 7 A schematic structural diagram of a vertical guide column involved in an embodiment of the present application is shown.

[0049] Figure 8 A logic block diagram of a tunnel guidance system control method involved in an embodiment of the present application is shown.

[0050] Fig. 9 It is a structural schematic diagram of a tunnel guidance system control device provided in an embodiment of the present application.

[0051] Fig.10 It is a structural diagram of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0053] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.

[0054] Figure 1 FIG. 1 is a system block diagram of a tunnel guidance system according to an exemplary embodiment. Figure 1 As shown, the system is provided with a data acquisition module, a system control module, a line-shaped identification module and a lighting module;

[0055] The data acquisition module includes an environmental data detection device for the tunnel area and a vehicle information acquisition device;

[0056] The lighting module includes a lighting fixture located inside the tunnel and a lighting fixture at the tunnel entrance; the lighting fixture at the tunnel entrance includes at least two brightness levels;

[0057] The linear identification module includes a plurality of identification devices arranged at the tunnel entrance and inside the tunnel;

[0058] The system control module is used to adjust the luminous brightness of each identification device in the linear identification module and each lighting fixture in the lighting module according to the collected data of the data collection module.

[0059] In the data acquisition module, the environmental data detection device and the vehicle information collection device communicate through the data bus, collect the environmental parameters and vehicle information inside and outside the tunnel in real time, and provide accurate input data; the system control module controls the dynamic adjustment of the linear identification module and the lighting module through a feedback mechanism based on the collected data.

[0060] Please refer to Figure 2 , which shows a schematic diagram of the setting of the data acquisition module involved in the embodiment of the present application. Figure 2As shown, the tunnel can be divided into an approach section (e.g., 100 to 500 meters before entering the tunnel), an entrance section (e.g., 100 meters outside the tunnel to 100 meters inside the tunnel), a middle section, an exit section (e.g., 100 meters inside the tunnel to 100 meters outside the tunnel), and a departure end (e.g., 100 to 500 meters after exiting the tunnel) according to the driving direction; multiple environmental data detection devices can be deployed inside and outside the tunnel; and at the tunnel entrance, a vehicle information detection device can be deployed to detect vehicles in the approach section and vehicles in the departure section respectively.

[0061] Further, the environmental data detection device includes: a meteorological detection device, an illumination sensor, a brightness detection device, and a color temperature sensor;

[0062] The meteorological detection device is arranged at the approach section outside the tunnel to detect the meteorological conditions outside the tunnel; the illumination sensor is arranged at the approach section outside the tunnel and the entrance section inside the tunnel to detect the light intensity inside and outside the tunnel; the brightness detection device is arranged at the entrance section, middle section and exit section inside the tunnel to detect the brightness of the inner wall and road surface of the tunnel; the color temperature sensor is arranged at the entrance section inside the tunnel to measure the color temperature change of the entrance section.

[0063] The meteorological detection device 111 uses a multifunctional meteorological sensor that can detect parameters such as temperature, humidity, wind speed, etc. in real time, and transmit data to the system control module through a wireless network, so as to dynamically adjust the lighting and identification modules in the tunnel according to external weather conditions. The illumination sensor 112 is set at the approach section outside the tunnel and the entrance section inside the tunnel, and is used to detect the difference in light intensity outside the tunnel entrance and at the entrance inside the tunnel, especially in the early morning and dusk, when the light conditions change greatly, to automatically adjust the brightness of the lighting equipment to reduce the visual impact of the driver. The brightness detection device 113 monitors the brightness changes at different positions inside the tunnel through the brightness sensors set up in the entrance section, middle section and exit section of the tunnel, ensuring that the brightness of the inner wall and road surface of the tunnel is always kept in an appropriate range. The color temperature sensor 114 is responsible for monitoring the color temperature of the entrance section of the tunnel to ensure the stability of the color temperature and reduce the impact of the light source on the driver's vision.

[0064] Furthermore, the vehicle information detection device includes a vehicle detection sensor; the vehicle detection sensor includes at least one of an image acquisition device and a radar; the vehicle detection sensor is distributed in the approach section and the departure section outside the tunnel, and is used to detect vehicle information of vehicles passing through the tunnel.

[0065] Optionally, the image acquisition device can be a high-precision camera. The high-precision camera 121 uses high-definition digital camera technology to accurately identify the type of vehicle (such as cars, trucks, etc.), speed and lane position entering the tunnel, and cooperates with the radar 122 to achieve real-time tracking of the vehicle. The radar 122 uses short-range high-frequency radar detection technology to provide real-time position and speed information of the vehicle. The two work together to achieve accurate analysis of the vehicle flow, speed and traffic status about to enter the tunnel, and provide real-time data for the dynamic adjustment of the lighting module and the identification module.

[0066] In an embodiment of the present application, the linear identification module includes: a longitudinal side wall identification, a longitudinal roadside identification, a longitudinal roadside luminous strip, a vertical luminous ring, and a vertical guide column; the lighting module includes: a basic lighting fixture at the opening, an enhanced lighting fixture at the opening, and a lighting fixture inside the opening.

[0067] Please refer to Figure 3 , which shows a schematic diagram of the side layout of a linear identification module and a lighting module involved in an embodiment of the present application. Please refer to Figure 4 , which shows a schematic diagram of partial facility control of a linear identification module involved in an embodiment of the present application. Figure 3 and Figure 4 As shown, the longitudinal side wall marking 31 provides clear driving guidance by setting a waistline 311 and a luminous arrow 312 on the walls on both sides of the tunnel. The waistline 311 uses a highly reflective paint, which can reflect the light of the car lights in low light conditions to improve visibility. The luminous arrow 312 is an arrow-shaped or triangular guiding pattern, and uses LED lamp beads as the light source. The LED lamp beads can be set to flash at a frequency of 1-2Hz according to the speed of the traffic flow. The surface is affixed with a reversible orange reflective film. The spacing and size are set according to the design speed. When the design speed is less than 40km / h, the spacing is set to 20-25m, the vertical length L is 30-35cm, and the longitudinal length W is 20-25cm; when the design speed is between 40-80km / h, the spacing is set to 25-50m, the vertical length L is 40-45cm, and the longitudinal length W is 25-30cm; when the design speed is greater than 80km / h, the spacing is set to 50-100m, the vertical length L is 50-55cm, and the longitudinal length W is 30-35cm. Please refer to Figure 5 , which shows a structural schematic diagram of a luminous arrow involved in an embodiment of the present application.

[0068] The longitudinal roadside signs 32 are arranged on the sides of the inspection road curbs on both sides of the tunnel, with a length of 0.5 to 2 meters, made of aluminum plates with yellow or white reflective film on the surface, and with a trapezoidal cross section, which can reflect the light projected by the longitudinal roadside luminous belt 33 over a large area. The spacing is adjusted according to the design speed: when the design speed is less than 40 km / h, the spacing is 6-10 meters; when the design speed is between 40 and 80 km / h, the spacing is 10-12.5 meters; when the design speed is greater than 80 km / h, the spacing is 12.5-15 meters;

[0069] The longitudinal roadside luminous strip 33 is arranged on the lateral top of the inspection road edge on both sides of the tunnel, and is applied from the tunnel entrance to the tunnel exit; the longitudinal roadside luminous strip 33 is composed of a longitudinal light strip 331 and a longitudinal lampshade 332; the longitudinal light strip 331 is composed of LED lamp beads, which can be set to be always on or set to a flashing frequency of 1-2Hz according to the speed of the traffic flow, and the color temperature can be adjusted according to the position and external environment. The lampshade 332 is arranged above the longitudinal light strip 331 to block the light emission of the lamp beads, and the interior is arc-shaped and made of retroreflective material, which can reflect the light emitted by the lamp beads. Effectively concentrate the light beam and improve the lighting effect.

[0070] Please refer to Figure 6 , which shows a schematic diagram of the structure of a vertical luminous ring involved in an embodiment of the present application. Figure 6 As shown, the vertical luminous ring 34 is in the shape of a ring strip, which is set on the tunnel arch wall and extends to the surface of the inspection road; the vertical luminous ring 34 is made of aluminum-plastic plate material, with a "U"-shaped cross section, and a layer of white reflective film 341 is attached to the outside, and the reflective side is at an angle of 75° with the driving direction; the bottom and the top cross sections of the vertical luminous ring 34 are both "∩"-shaped, and are each provided with a vertical light strip 342. The vertical light strip 342 is composed of LED lamp beads, which can be set to be always on, or the flashing frequency can be set to 1-2Hz according to the traffic speed, and the color temperature can be adjusted according to the position and external environment. The "∩"-shaped structure can block the light of the LED lamp beads and reflect the light of the LED lamp beads. The vertical luminous ring 34 is provided with a spotlight 343 on the side facing the driving direction and at a height range of 2 to 3m. The spotlight 343 can emit light upward and downward to illuminate the reflective film 341. The spacing of the vertical luminous rings 34 is adjusted according to the design speed: when the design speed is less than 40 km / h, the spacing between the entrance section and the exit section is 30 to 40 m, and the spacing between the middle section is 60 to 80 m; when the design speed is between 40 and 80 km / h, the spacing between the entrance section and the exit section is 40 to 50 m, and the spacing between the middle section is 80 to 100 m; when the design speed is greater than 80 km / h, the spacing between the entrance section and the exit section is 50 to 100 m, and the spacing between the middle section is 100 to 200 m.

[0071] Please refer to Figure 7, which shows a schematic diagram of the structure of a vertical guide column involved in an embodiment of the present application. The vertical guide column 35 is arranged 0.1 to 0.3 m outside the lane markings of the approach section and the departure section outside the tunnel. The vertical guide column 35 is arranged at the outer edge above the inspection road of the entrance section and the exit section in the tunnel; the height of the vertical guide column 35 is 0.8 to 1.6 m, and its color is fluorescent yellow-green and red, each color is arranged alternately, with a total of 4 to 8 color blocks, and the color block length is 0.2 to 0.4 cm. The surface of the lower 2 to 4 color blocks is only made of reflective film material, and the surface of the upper 2 to 4 color blocks is made of reflective film material, and there are also lamp beads inside, which can actively emit light. An indication arrow 353 is arranged above the first vertical guide column 35 of the approach section. When on the left side of the road, the arrow direction is the lower right corner, and when on the right side of the road, the arrow direction is the lower left corner, which assists the driver to accurately identify the driving direction. An LED lamp bead is arranged inside the indication arrow 353, which can flash and emit light. The vertical guide columns 35 are arranged in a range of 50 to 100 m at the approach section and the departure section of the tunnel, in a range of 25 to 50 m at the entrance section and the exit section, and the arrangement interval is 5 to 10 m.

[0072] In the embodiment of the present application, the system control module is further used to turn off the entrance enhancement lighting fixture 42, the tunnel lighting fixture 43 and each identification device in the linear identification module in the lighting module when there is no vehicle within the decision sight distance of the tunnel entrance and there is no vehicle passing through the tunnel;

[0073] The decision sight distance length DSD = 0.278*v*t, where v is the design speed of the tunnel and t is the preset maneuvering time (and the driver's maneuvering time, which is 12.1 to 12.9 seconds).

[0074] Furthermore, in the embodiment of the present application, the system control module can also adjust the working status of the basic lighting fixtures at the tunnel entrance, the enhanced lighting fixtures at the tunnel entrance, the lighting fixtures inside the tunnel, the longitudinal side wall markings, the longitudinal roadside light strips, the vertical light rings and the vertical guide columns according to the difference in illumination or brightness inside and outside the tunnel.

[0075] Specifically, when a vehicle is detected passing through, the system will automatically start the control program, dynamically adjust the opening of the basic lighting fixtures 41 at the tunnel entrance, the enhanced lighting fixtures 42 at the tunnel entrance, the lighting fixtures 43 inside the tunnel, the longitudinal side wall signs 31, the longitudinal roadside light strips 33, the vertical light rings 34 and the vertical guide columns 35, to change the brightness and color temperature inside the tunnel. When the difference in illumination or brightness between the inside and outside of the tunnel is greater, the lighting module 4 and the linear sign module 3 enable more lamps and luminous signs, and the color temperature of the luminous signs gradually decreases, realizing a transition from cold tones to warm tones, so as to provide a safer and more comfortable light environment. In addition, when the system detects that the vehicle speed is high, the flashing frequency of the signs will increase to enhance the driver's reaction time to the signs. The details are as follows:

[0076] 1) When the difference in illumination or brightness inside and outside the tunnel does not exceed 25%, the lighting module 4 only activates the basic lighting fixture 41 at the entrance, and the linear sign module 3 activates the light strips or lamp beads of the longitudinal side wall sign 31, the longitudinal roadside light strip 33 and the vertical light ring 34; the color temperature of the linear sign module 3 at the entrance and exit section is 3000~3500K, and the color temperature in the middle section is 6000~7000K.

[0077] 2) When the illumination or brightness difference is between 25% and 50%, the lighting module 4 activates the basic lighting fixtures 41 at the entrance and the lighting fixtures 43 inside the cave, and the linear identification module 3 activates the light strips or lamp beads of the longitudinal side wall identification 31, the longitudinal roadside light strip 33, the vertical light ring 34 and the vertical guide column 35; the color temperature of the linear identification module 3 in the entrance and exit section is 2500-3000K, and the color temperature in the middle section is 5000-6000K.

[0078] 3) When the illumination or brightness difference exceeds 50%, the lighting module 4 activates the basic lighting fixtures 41 at the entrance, the enhanced lighting fixtures 42 at the entrance and the lighting fixtures 43 inside the cave, and the linear identification module 3 activates the light strips or lamp beads of the longitudinal side wall identification 31, the longitudinal roadside light strip 33, the vertical light ring 34, and the vertical guide column 35, and turns on the spotlights 343 in the vertical light ring 34 to further enhance the brightness inside the cave; the color temperature of the linear identification module 3 in the entrance and exit section is 2000~2500K, and the color temperature in the middle section is 4000~5000K.

[0079] Furthermore, the lamps and marking devices in the lighting module and line marking module are not adjusted uniformly, but a suitable adjustment range is determined according to the driving position of the vehicle. In other words, the system control module can determine the control range inside the tunnel according to the position of the vehicle from the tunnel entrance portal and the decision sight distance length, so as to adjust the working states of the basic lighting lamps at the tunnel entrance, the enhanced lighting lamps at the tunnel entrance, the lighting lamps inside the tunnel, the longitudinal sidewall markings, the longitudinal roadside luminous strips, the vertical luminous rings and the vertical guide columns within the control range.

[0080] Specifically, the control range is dynamically adjusted according to the position of the vehicle from the tunnel entrance. Assuming that the straight-line distance between the vehicle and the tunnel entrance is d, if the tunnel exit is always visible, when the vehicle is outside the tunnel, the control range inside the tunnel is S = DSD-d; if the vehicle is not visible at a long distance from the exit, the control range of the guidance system inside the tunnel is S = DSD-d from the time the first vehicle enters the decision-making sight distance from the tunnel entrance. Where R is the radius of the tunnel, W is the width of the tunnel interface, and a is the distance between the driver and the center line of the lane.

[0081] In summary, the tunnel guidance system shown in the present application is provided with a data acquisition module, a system control module, a linear identification module and a lighting module, and the data acquisition module includes an environmental data detection device and a vehicle information collection device in the tunnel area; the lighting module includes lighting fixtures located inside the tunnel and lighting fixtures at the tunnel entrance; the lighting fixtures at the tunnel entrance include at least two brightness levels; the linear identification module includes a number of identification devices arranged at the tunnel entrance and inside the tunnel. At this time, the system control module can adjust the luminous brightness of each identification device in the linear identification module and each lighting fixture in the lighting module according to the collected data of the data acquisition module, that is, the environmental data of the tunnel area and the vehicle information approaching the tunnel or traveling in the tunnel, thereby realizing automatic adjustment of the lighting and identification modules of the tunnel according to real-time information such as ambient light, meteorological conditions, and traffic conditions inside and outside the tunnel, alleviating the black frame effect, thereby improving the driver's visual adaptation experience and enhancing driving safety.

[0082] Please refer to Figure 8 , which shows a logic block diagram of a tunnel guidance system control method involved in an embodiment of the present application. The control method is as follows Figure 1 The method is executed by a system control module in the system shown in the figure, and the system control module can be implemented as a computer device. The method includes:

[0083] Step 801, acquiring collected data; the collected data is collected by a data collection module; the data collection module includes an environmental data detection device and a vehicle information collection device in the tunnel area.

[0084] Step 802: adjusting the luminous brightness of each identification device in the linear identification module and each lighting fixture in the lighting module according to the collected data.

[0085] The specific implementation method of each step in the embodiment of the present application can be found in Figure 1 The system embodiments described will not be described in detail here.

[0086] In summary, the tunnel guidance system shown in the present application is provided with a data acquisition module, a system control module, a linear identification module and a lighting module, and the data acquisition module includes an environmental data detection device and a vehicle information collection device in the tunnel area; the lighting module includes lighting fixtures located inside the tunnel and lighting fixtures at the tunnel entrance; the lighting fixtures at the tunnel entrance include at least two brightness levels; the linear identification module includes a number of identification devices arranged at the tunnel entrance and inside the tunnel. At this time, the system control module can adjust the luminous brightness of each identification device in the linear identification module and each lighting fixture in the lighting module according to the collected data of the data acquisition module, that is, the environmental data of the tunnel area and the vehicle information approaching the tunnel or traveling in the tunnel, thereby realizing automatic adjustment of the lighting and identification modules of the tunnel according to real-time information such as ambient light, meteorological conditions, and traffic conditions inside and outside the tunnel, alleviating the black frame effect, thereby improving the driver's visual adaptation experience and enhancing driving safety.

[0087] In the embodiments of the present application, a tunnel guidance system control device is also provided, which is used to implement the above embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0088] The present application embodiment provides a tunnel guidance system control device, Fig. 9 : is a schematic diagram of a structure of a tunnel guidance system control device provided in an embodiment of the present application, the device comprising:

[0089] The data acquisition module 901 is used to obtain the collected data; the collected data is collected by the data acquisition module; the data acquisition module includes an environmental data detection device and a vehicle information collection device in the tunnel area;

[0090] The lighting control module 902 is used to adjust the light brightness of each identification device in the linear identification module and each lighting fixture in the lighting module according to the collected data.

[0091] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0092] The tunnel guidance system control device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0093] The present application also provides a computer device, which can be implemented as follows: Figure 1 The system control module in the system shown in the figure is provided with the above Fig. 9 The device shown can achieve the following Figure 8 The control method shown.

[0094] See also Fig.10 , Fig.10 is a schematic diagram of the structure of a computer device provided in an embodiment of the present application, such as Fig.10 As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process instructions executed in the computer device, including instructions stored in or on the memory to display graphic information in a graphical user interface on an external input / output device (such as a display device coupled to an interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Fig.10 A processor 10 is taken as an example.

[0095] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0096] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0097] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0098] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0099] The computer device further comprises a communication interface 30 for the computer device to communicate with other devices or a communication network.

[0100] The embodiment of the present application also provides a computer-readable storage medium. The above method according to the embodiment of the present application can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0101] Part of the present application may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present application through the operation of the computer. Those skilled in the art should understand that the existence of computer program instructions in computer-readable media includes but is not limited to source files, executable files, installation package files, etc., and accordingly, the way in which computer program instructions are executed by a computer includes but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to the computer.

[0102] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A tunnel guidance system, characterized in that: The system is provided with a data acquisition module, a system control module, a line-shaped identification module and a lighting module; The data acquisition module includes an environmental data detection device for the tunnel area and a vehicle information acquisition device; The lighting module includes a lighting fixture located inside the tunnel and a lighting fixture at the tunnel entrance; the lighting fixture at the tunnel entrance includes at least two brightness levels; The linear identification module includes a plurality of identification devices arranged at the tunnel entrance and inside the tunnel; The system control module is used to adjust the luminous brightness of each identification device in the linear identification module and each lighting fixture in the lighting module according to the collected data of the data collection module.

2. The system according to claim 1, characterized in that The environmental data detection device includes: a meteorological detection device, an illumination sensor, a brightness detection device, and a color temperature sensor; The meteorological detection device is arranged at the approach section outside the tunnel to detect the meteorological conditions outside the tunnel; the illumination sensor is arranged at the approach section outside the tunnel and the entrance section inside the tunnel to detect the light intensity inside and outside the tunnel; the brightness detection device is arranged at the entrance section, middle section and exit section inside the tunnel to detect the brightness of the inner wall and road surface of the tunnel; the color temperature sensor is arranged at the entrance section inside the tunnel to measure the color temperature change of the entrance section.

3. The system according to claim 2, characterized in that The vehicle information detection device includes a vehicle detection sensor; the vehicle detection sensor includes at least one of an image acquisition device and a radar; the vehicle detection sensor is distributed in the approach section and the departure section outside the tunnel, and is used to detect vehicle information of vehicles passing through the tunnel.

4. The system according to any one of claims 1 to 3, characterized in that: The linear identification module includes: longitudinal side wall identification, longitudinal roadside identification, longitudinal roadside luminous strip, vertical luminous ring, and vertical guide column; the lighting module includes: cave entrance basic lighting fixture, cave entrance enhanced lighting fixture, and cave interior lighting fixture.

5. The system according to claim 4, characterized in that The longitudinal side wall markings include waistlines and luminous arrows set on the walls on both sides of the tunnel; the waistlines are set using highly reflective paint; The luminous arrow is in the shape of an arrow or a triangle, and is provided with an LED lamp bead as a light source; the LED lamp bead sets a flashing frequency according to the speed of the traffic flow, and the surface of the luminous arrow is affixed with a reversibly reflective orange reflective film; The spacing and size of the luminous arrows are set according to the design speed; when the design speed is less than 40km / h, the spacing is set to 20-25m, the vertical length L is 30-35cm, and the longitudinal length W is 20-25cm; when the design speed is between 40-80km / h, the spacing is set to 25-50m, the vertical length L is 40-45cm, and the longitudinal length W is 25-30cm; when the design speed is greater than 80km / h, the spacing is set to 50-100m, the vertical length L is 50-55cm, and the longitudinal length W is 30-35cm; The longitudinal roadside signs are set on the sides of the inspection road curbs on both sides of the tunnel. They are 0.5 to 2 meters long and made of aluminum plates with yellow or white reflective film on the surface. The cross section is trapezoidal. The spacing of the longitudinal roadside signs is adjusted according to the design speed; when the design speed is less than 40 km / h, the spacing is 6-10 m; When the design speed is between 40 and 80 km / h, the spacing is 10-12.5 m; when the design speed is greater than 80 km / h, the spacing is 12.5-15 m; The longitudinal roadside luminous strip is arranged on the top of the side of the inspection road edge on both sides of the tunnel from the tunnel entrance to the tunnel exit; The longitudinal roadside light strip is composed of a longitudinal light strip and a longitudinal lampshade; the longitudinal light strip is composed of LED lamp beads, which are set to be always on or set to flash at a frequency according to the speed of the traffic flow, and the color temperature is adjusted according to the position and the external environment; the lampshade is set above the longitudinal light strip to block the light emission of the lamp beads, and the interior is arc-shaped and made of retro-reflective material; The vertical guide column is arranged 0.1 to 0.3 m outside the lane markings of the approach section and the departure section outside the tunnel; the vertical guide column is arranged at the outer edge above the inspection road of the entrance section and the exit section inside the tunnel; the height of the vertical guide column is 0.8 to 1.6 m, and its color is fluorescent yellow-green and red, each color is arranged alternately, with a total of 4 to 8 color blocks, and the color block length is 0.2 to 0.4 cm. The surface of the 2 to 4 color blocks at the bottom is only made of reflective film material, and the surface of the 2 to 4 color blocks at the top is not only made of reflective film material, but also has lamp beads inside; An indicator arrow is provided above the first vertical guide column in the approach section. The arrow direction is the lower right corner when on the left side of the road, and the arrow direction is the lower left corner when on the right side of the road; an LED light bead is provided inside the indicator arrow; the vertical guide column is set in a range of 50 to 100m in the approach and departure sections of the tunnel, and in a range of 25 to 50m in the entrance and exit sections, with a setting spacing of 5 to 10m.

6. The system according to claim 4, characterized in that The system control module is used to adjust the working states of the basic lighting fixtures at the tunnel entrance, the enhanced lighting fixtures at the tunnel entrance, the lighting fixtures inside the tunnel, the longitudinal side wall markings, the longitudinal roadside light strips, the vertical light rings and the vertical guide columns according to the illumination difference or brightness difference inside and outside the tunnel.

7. The system according to claim 6, characterized in that When the difference in illumination or brightness between the inside and outside of the tunnel does not exceed 25%, the lighting module only uses the basic lighting fixtures at the entrance, and the linear sign module uses the longitudinal side wall sign, longitudinal roadside light strip and vertical light ring light strip or lamp bead lighting; the color temperature of the linear sign module is 3000-3500K at the entrance and exit section, and 6000-7000K in the middle section; When the illumination or brightness difference is between 25% and 50%, the lighting module uses the basic lighting fixtures at the entrance and the basic lighting fixtures inside the tunnel, and the linear sign module uses the light strips or lamp beads of the longitudinal side wall signs, longitudinal roadside light strips, vertical light rings and vertical guide columns; the color temperature of the linear sign module is 2500-3000K at the entrance and exit section, and 5000-6000K in the middle section; When the illumination or brightness difference exceeds 50%, the lighting module activates the basic lighting fixtures at the opening, the enhanced lighting fixtures at the opening and the basic lighting fixtures inside the opening; the linear sign module activates the light strips or lamp beads of the longitudinal side wall signs, longitudinal roadside light strips, vertical light rings, and vertical guide columns, and turns on the spotlights in the vertical light rings to further enhance the brightness inside the opening; the color temperature of the linear sign module at the entrance and exit sections is 2000~2500K, and the color temperature in the middle section is 4000~5000K.

8. The system according to claim 7, characterized in that The system control module is further used to turn off the entrance enhancement lighting fixtures in the lighting module, the tunnel lighting fixtures and each identification device in the linear identification module when there is no vehicle within the decision sight distance of the tunnel entrance and there is no vehicle passing through the tunnel; The decision sight distance length DSD=0.278*v*t, wherein v is the design speed of the tunnel and t is the preset maneuvering time.

9. The system according to claim 6, characterized in that The system control module is used to determine the control range inside the tunnel according to the position of the vehicle from the tunnel entrance portal and the decision sight distance length, so as to adjust the working states of the basic lighting fixtures at the tunnel entrance, the enhanced lighting fixtures at the tunnel entrance, the lighting fixtures inside the tunnel, the longitudinal side wall markings, the longitudinal roadside light strips, the vertical light rings and the vertical guide columns within the control range.

10. The system according to claim 8, characterized in that The control range of the guidance system inside the tunnel is Where R is the radius of the tunnel, W is the width of the tunnel interface, and a is the distance between the driver and the center line of the lane.

11. A tunnel guidance system control method, characterized in that: The method is executed by a system control module in the system according to any one of claims 1 to 9, and the method comprises: Acquire collected data; the collected data is collected by a data collection module; the data collection module includes an environmental data detection device and a vehicle information collection device in the tunnel area; According to the collected data, the light brightness of each identification device in the linear identification module and each lighting fixture in the lighting module is adjusted.

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