KR102334366B1 - Smart lighting guidance display system using video transmission in road tunnel - Google Patents

Abstract

According to the present invention, a smart control system of a video transmission device for guidance in a road tunnel includes: a display area formed on one side of a tunnel; a video transmission device includes an information output unit for outputting traffic information through a monitor, and a hologram reproducing device having a hologram mirror disposed on a front side of the monitor to project traffic information as a hologram on the display area; and a controller includes a transmission control unit for controlling the transmission of the traffic information to the display area, and an illuminance control unit which adjusts the illuminance of the hologram according to the illuminance inside the tunnel and the speed of a vehicle passing through the tunnel and adjacent to the hologram reproducing device. Accordingly, by projecting the traffic information through the video transmission device, a driver can receive the traffic information more clearly.

Description

Smart control system for video transmission device for guidance in road tunnels {SMART LIGHTING GUIDANCE DISPLAY SYSTEM USING VIDEO TRANSMISSION IN ROAD TUNNEL}

The present invention relates to a smart control system for a video transmission device for guidance in a road tunnel, and more particularly, to provide necessary traffic information while driving to a driver passing through the tunnel through the video transmission device, but depending on the environment inside the tunnel It relates to a hologram smart control system for guiding a road tunnel that enables adjustment of the illuminance, location, and transmission size of an image transmission device.

In addition to lighting to illuminate the interior of the tunnel, it is common to install guide signs that provide useful information to drivers, such as safe driving messages, speed limits, and remaining distance to major destinations.

Recently, in addition to printing characters and symbols on these guide signs, attempts have been made to clearly convey and provide useful information to drivers even in dark tunnels including light emitting means.

As a prior art related to such a tunnel guide sign, Korean Patent No. 10-1818204 (title of the invention: LED guide light for tunnel) has been registered.

The prior art is a case that is fixedly installed inside the tunnel and is equipped with a guide sign on the front side; an LED module disposed inside the case and illuminating the guide sign while driving light emission according to applied driving power; a power supply unit disposed inside the case to convert the input commercial power into the form of the driving power and apply it to the LED module; and an AC input terminal block to which commercial power is supplied from the outside through a commercial power supply line, wherein the power supply includes a first converter that converts to the driving power when commercial power is applied, and the driving when commercial power is applied A second converter that converts power to a circuit is connected between the LED module, the first converter, and the second converter, and monitors the driving power output from the first converter so that when the driving power is output, it is applied to the LED module, and at the same time The driving power of the second converter cuts off the output, and when the driving power is not output from the first converter, it comprises a relay for switching operation so that the driving power of the second converter is applied to the LED module. Guidance is provided.

The prior art suggests a guide light that provides a guide sign applied to a tunnel to the driver by emitting LEDs, but the size of the LED light source is directly related to the pixel size of the guide, so a high-resolution guide cannot be provided to the driver. This follows. Of course, a high-resolution display method using LEDs is widely known, but it has a disadvantage that it is inappropriate to apply to an environment that does not obstruct the driver's view while providing an intuitive guide, such as a tunnel.

In addition, there is no size limit for guide lights installed on general roads outside the tunnel, but in the case of guide lights using LEDs, which occupies a certain volume due to space restrictions inside the tunnel, the size is limited, making it difficult to deliver clear instructions. also follow

In addition, since this type of guide light can transmit only the pre-stored guide, it is difficult to transmit the guide reflecting the traffic conditions inside and outside the tunnel that change from time to time.

Therefore, it is possible to output the guide at high resolution by providing a way of projecting the guide to a specific area within the tunnel rather than directly emitting the guide sign. Provided traffic information inside and outside the tunnel from an administrator who There is a need for a smart control system.

The present invention has been devised to overcome the problems of the above technology, and by projecting traffic information through an image transmission device so that the driver can receive traffic information more clearly, smart that can control the illumination of the output traffic information Its main purpose is to provide a control system.

Another object of the present invention is to control the location of transmission of traffic information by adjusting the angle at which traffic information is transmitted by reflecting the difference in illuminance inside and outside the tunnel.

Another object of the present invention is to adjust the size of traffic information output based on the illuminance inside the tunnel, the speed of a vehicle passing through the tunnel, and the amount of traffic passing through the tunnel.

It is a further object of the present invention to provide a separate emergency power source so that traffic information can be smoothly provided in a tunnel even in an emergency disconnection or natural disaster situation.

In order to achieve the above object, a smart control system of an image transmitting apparatus for guidance of a road tunnel according to the present invention includes: a display area formed on one side of the tunnel; an image transmission device comprising: an information output unit for outputting traffic information through a monitor; a transmission control unit for controlling transmission of the traffic information to the display area; and a controller including a transmission control module to

In addition, an illuminance sensor for measuring external illuminance near the entrance is provided at each entrance of the tunnel, and the hologram reproducing apparatus includes an inclination-angle variable means for varying the inclination angle of the hologram mirror, and the transmission control module includes: , a mirror control unit for controlling the position of the display area in which the hologram is displayed by operating the inclination angle variable means according to the illuminance inside the tunnel and the external illuminance and the speed of the vehicle.

In addition, the mirror control unit includes an illuminance value calculation part for calculating a first illuminance value based on the illuminance inside the tunnel and the external illuminance, and a final value based on the speed of the vehicle in the primary illuminance value. A final numerical calculation part, and a position adjusting part for adjusting the position of the display area in which the hologram is displayed by operating the inclination angle variable means based on the final numerical value, wherein the final numerical calculation part includes the following equation It is characterized in that the final value is calculated based on 1.

Additionally, the transmission control module may include a size adjusting unit for controlling the display area to output the hologram only in an active area including an area having a size smaller than the entire area of the display area.

According to the smart control system of the video transmission device for guidance of the road tunnel according to the present invention,

1) It provides traffic information with high resolution and various movements to the driver without obstructing the driver's field of vision, but enables smart control of the illuminance of traffic information output according to the speed of adjacent vehicles.

2) By controlling the location of the display area where traffic information is outputted according to the difference in illuminance inside and outside the tunnel and the speed of the vehicle, it is possible to clearly convey traffic information to the driver and prevent glare from the driver.

3) Power control was made possible by adjusting the size of the traffic information output based on the illuminance inside the tunnel, the speed of the vehicle passing through the tunnel, and the amount of vehicle traffic in the tunnel.

4) A separate emergency power supply is provided to enable stable transmission of traffic information through the image transmission device, and the size of the display area where traffic information is output can be adjusted based on the remaining power of the emergency power supply to ensure seamless information It has the effect of enabling transmission.

1 is a perspective view showing a schematic configuration of a system of the present invention;
Fig. 2 is a front view of a tunnel equipped with the system of the present invention;
3 is a schematic diagram showing a schematic structure of a hologram reproducing apparatus of the present invention.
Figure 4 is a block diagram showing the detailed configuration of the controller of the present invention.
5 is a perspective view illustrating a hologram mirror including a means for varying an inclination angle;
6 is a conceptual diagram illustrating a configuration of adjusting a size of a display area;
7 is a cross-sectional view showing a hologram mirror equipped with a filter panel of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and like reference numbers in each drawing refer to like elements.

Fig. 1 is a perspective view showing a schematic configuration of a system of the present invention, and Fig. 2 is a front view showing a tunnel having the system of the present invention.

The system of the present invention is based on including a display area 10 , an image transmission device, and a controller 30 .

A general tunnel takes the structure of outputting a notice by flickering the LED of the guide signboard, but the present invention is mainly characterized in that the notice is output through an image transmitting device.

That is, the image transmitting device of the present invention provides a function of floating a notice in a specific area in the tunnel, not the known LED signboard method.

Here, the image transmitting device may be a hologram reproducing device 100 or a beam projector, so that traffic information can be provided to the driver without obstructing the driver's view. However, as a preferred embodiment, the hologram reproducing apparatus 100 is shown as an example of an image transmitting apparatus.

In the present invention, the traffic information floated by the image transmitting device is provided, and a specific area within the tunnel where the traffic information is projected is called a 'display area 10'. As follows.

First, the present invention provides the aforementioned traffic information, which can be output as text, image or video. That is, traffic information consists of letters, numbers, and symbols and can be expressed visually. For example, a speed limit of 70 km/h section, a section with frequent accidents!, a distance remaining until XX time of 75 km, and congestion in tunnel A even while driving. It is possible to include a message for providing identifiable traffic information.

In the present invention, since the aforementioned hologram reproducing apparatus 100 is applied as a means for outputting such traffic information, it is based on outputting the traffic information in an image format based on the image transmission characteristics of the hologram reproducing apparatus 100. . Such traffic information may be a still image or a dynamic image in which the content and location of the traffic information change according to time.

The display area 10 means an area on which such traffic information is projected. As can be seen from FIGS. 1 and 2 , the display area 10 is the inner space or wall of the tunnel (concept including the ceiling and sidewalls of the tunnel) or is installed separately in the tunnel. It may be a screen.

First, when the image transmitting device is a beam projector, it is possible that the display area 10 is made of a screen due to the characteristics of the beam projector. Such a screen is preferably installed on the ceiling of the tunnel through a coupling means with a minimum volume that does not obstruct the driver's view in the tunnel. In this case, the beam projector needs a resolution and an illuminance output function that can project the guide image clearly on the screen. When a plurality of beam projectors are installed along the extension direction of the tunnel, the screens may be installed in a corresponding number and positions.

As the most preferred embodiment, when traffic information is output through the hologram playback device 100, the display area 10 may be a space under the ceiling of a tunnel that displays a guide image implemented as a hologram image, or a space around the side wall of the tunnel. have.

As shown in FIG. 1 , the display area 10 is spaced apart from the hologram reproducing apparatus 100 by a certain distance, where traffic information can be clearly projected at a certain distance and the hologram reproducing apparatus 100 provides a guide image. It is possible to have a distance of 1 to 3 m that does not cover , but it is not limited thereto, and it may be a longer or closer distance depending on the illumination in the tunnel and the projection performance or detailed configuration of the hologram reproducing apparatus 100 .

Hereinafter, an additional description of the structure and function of the image transmitting apparatus implemented in the form of the hologram reproducing apparatus 100 will be briefly described.

3 is a schematic diagram showing a schematic structure of a hologram reproducing apparatus of the present invention.

The hologram playback device 100 refers to a device for projecting traffic information in the form of a three-dimensional hologram image into the space inside the tunnel.

The hologram reproducing apparatus 100 basically includes an information output unit 110 and a hologram mirror 120 inside the housing via a housing mounted on the ceiling of the tunnel through a coupling means.

The information output unit 110 may include a monitor for projecting traffic information according to the driving control of the transmission control module 200, and the monitor includes an LED, OLED, It may be a variety of display devices such as LCD, and thus simultaneously projected traffic information may be processed to be projected three-dimensionally while forming an interference pattern.

The information output unit 110 may be installed so that the monitor faces the hologram mirror 120 provided in the housing as shown in FIG. 3 to reflect an image including traffic information to the hologram mirror 120 .

The hologram mirror 120 is installed obliquely in front of the monitor. Specifically, the hologram mirror 120 is installed at an inclination angle of 35 to 55 degrees in front of the monitor to reflect an image including traffic information toward the display area 10 .

In addition, the hologram mirror 120 serves to generate a holographic image that is a three-dimensional image by causing interference between the traffic information image reflected through the hologram mirror 120 and the traffic information image of multiple wavelengths projected from the monitor. .

In this case, the hologram mirror 120 may include the inclination angle variable means 130 for changing the inclination angle so as to vary the projection position of the holographic image, which will be described later.

In other words, the hologram reproducing apparatus 100 reflects and interferes with the traffic information image projected from the information output unit 110 through the hologram mirror 120 as shown in FIG. 3 to transmit the traffic information to the display area 10 in the tunnel. Provides a function to project a holographic image including

4 is a block diagram illustrating a detailed configuration of a controller according to the present invention.

The controller 30 of the present invention controls the driving of the above-described hologram reproducing apparatus 100, and a component of hardware (eg, central processing unit) and software combining means for implementing the hologram reproducing apparatus 100 . It may be included as a , or may be provided separately from the transmitting device 20 on one side of the tunnel to interwork with the transmitting device 20 through wired/wireless communication means. This controller 30 basically includes the transmission control module 200 .

The transmission control module 200 controls the transmission of a holographic image (abbreviated hologram) including traffic information to the display area 10 , and further controls the illuminance of the hologram. To this end, the transmission control module 200 includes a transmission control unit 210 and an illuminance control unit 220 .

First, the transmission control unit 210 serves to control transmission of traffic information (hologram image) to the display area 10 . To this end, the projection means (eg, a lamp) basically included in the hologram reproducing apparatus 100 . ), including a series of functions for controlling the content and movement of traffic information in the process of projecting the traffic information toward the display area 10 .

Furthermore, the transmission control module 200 includes an illuminance control unit 220, which is a hologram image projected according to the illuminance inside the tunnel and the speed of a vehicle adjacent to the hologram reproducing apparatus 100; That is, the illuminance of the hologram including traffic information is adjusted.

Here, a vehicle adjacent to the hologram reproducing apparatus 100 means passing the hologram reproducing apparatus 100 installed inside the tunnel of the present invention, and thus, of course, means a vehicle passing through the tunnel. Therefore, a vehicle adjacent to the hologram playback device 100 means a vehicle that is closer to the hologram playback device 100 than a distance that can be preset by a system administrator, where the set distance may be within 1 to 20 m. .

Accordingly, the illuminance of the hologram is adjusted according to the speed of a vehicle passing through the tunnel and the illuminance inside the tunnel, where the illuminance inside the tunnel may be measured through an illuminance sensor. To this end, an illuminance sensor is provided near the road inside the tunnel to measure illuminance. It may be a known illuminance sensor used.

In addition, in the case of measuring the speed of the vehicle, a known speed measuring camera for measuring the speed of the vehicle is provided on one side of the hologram reproducing apparatus 100 or one side inside the tunnel to determine the speed of the vehicle.

Therefore, in this configuration, the higher the speed of the vehicle and the higher the illuminance of the tunnel, the higher the illuminance of the hologram is adjusted through the illuminance control unit 220, so that the driver driving inside the tunnel can receive traffic information more clearly. is to make it

Therefore, through the smart control system of the video transmission device for guidance in the road tunnel, unlike the method of directly displaying messages informing of road traffic conditions in the tunnel through the LED signboard, which is the display method of the existing guidance display system, traffic By applying the method of projecting, ie, transmitting, the information hologram image to the display area 10, traffic information can be delivered to the driver with more precise pixels and various movements, and at the same time, when the traffic information is provided as a hologram, the illuminance inside the tunnel And, it is possible to adjust and provide the illuminance of the hologram based on the speed of the vehicle passing through the tunnel, so that traffic information can be delivered to the driver more accurately and clearly.

In general, since a vehicle is driven in a tunnel with the headlight turned on, if the number of vehicles increases, the hologram containing traffic information and the light from the headlight may interfere with each other. There is a possibility that it may not be clearly visible in the In addition, if the illuminance of the hologram is excessively high compared to the illuminance in the tunnel, the driver's eyes are dazzled and the risk of a traffic accident may increase.

In addition, a sudden change in illuminance occurs at the entrance and exit of the tunnel, that is, near the entrance and exit, so it is also a point with a high risk of accidents due to the driver's glare. In addition, as the change in illuminance is large, traffic information is provided at a different illuminance from other places near the entrance of the tunnel, or by adjusting the position of the display area 10 where the hologram is displayed, traffic information is more accurately provided to the driver. can The configuration for this will be described as follows.

5 is a perspective view illustrating a hologram mirror including an inclination angle variable means.

The system of the present invention may additionally include an illuminance sensor to measure the illuminance of the display area 10 . Here, the illuminance sensor may be a known illuminance sensor using a property of increasing resistance as the amount of irradiated light increases, including a cadmium sulfide element.

The illuminance sensor measures the illuminance of the display area 10 as well as the surrounding area within the tunnel to secure a basis for changing the range of the display area 10 . In other words, the illuminance sensor does not measure only the illuminance of a specific spot, but for a specific detailed area (position), such as the upper area, the center area, the lower area, and the left area, based on the display area 10 . By measuring the illuminance, it provides a basis for determining whether the illuminance is low or high in a specific area.

In addition, as in the above description, a sudden change in illuminance occurs near the entrance of the tunnel. To reflect this, an illuminance sensor is provided together with the inside of the tunnel to measure the external illuminance of the tunnel near the entrance and exit of the tunnel to reflect this. can be

That is, the illuminance sensor is provided not only inside the tunnel but also near the entrance, so that it is possible to measure not only the internal illuminance of the tunnel but also the external illuminance of the tunnel.

Correspondingly, the hologram reproducing apparatus 100 includes an inclination angle variable means 130 capable of changing the inclination angle of the hologram mirror 120, and the inclination angle variable means 130 includes a shaft 131 and a motor 132. , may be made of a fixed leg (133).

In this case, the holographic mirror 120 includes a mirror body 121 including a panel (flat or curved panel) that reflects and interferes with the above-described holographic image to generate a holographic image, and a mirror body 121 . It includes a rotation shaft 122 extending along the longitudinal direction of the upper surface of the mirror body 121 from one side (upper side) of the.

If this is explained in conjunction with the inclination angle variable means 130, the motor 132 via the shaft 131 on both sides of the rotation shaft 122 (the circular surface side of the rotation shaft 122 shown as a cylinder in FIG. 4). can be combined.

The motor 132 rotates the shaft 131 and the rotation shaft 122 connected thereto and consequently serves to rotate the mirror body 121. At this time, the mirror body 121 rotates between 1 and 5 degrees. Since it is sufficient to rotate at the angular level, it is preferable to use a stepping motor capable of precisely controlling the number of rotations.

As can be seen from FIG. 5 , it is possible to provide a total of two motors 132 on both sides of the rotation shaft 122 , and these two motors 132 rotate in opposite directions with the same number of rotations. By driving, the inclination angle of the hologram mirror 120 can be varied without twisting the rotation shaft 122 .

The fixed leg 133 performs a function of supporting the motors 132 on both sides. For example, when the hologram mirror 120 is provided inside the hologram reproducing apparatus 100, the hologram reproducing apparatus 100 is installed. It is fixed to the inner wall of the enclosing housing, and when the hologram mirror 120 exists separately from the above-described housing in the hologram reproducing apparatus 100, it is possible to be fixed to the ceiling of the tunnel.

Additionally, although not shown in the drawings, the inclination angle variable means 130 is used when the motor 132 is driven or when the motor 132 is not driven. It is also possible to include a flow preventing means such as a socket or bracket such as a V-shape or W-shape that can limit the rotation range of the hologram mirror 120 while surrounding the hologram mirror 120 .

The inclination angle variable means 130 provides a function of changing the position at which the holographic image is displayed in the display area 10 according to the changed inclination angle of the hologram mirror 120 .

Correspondingly, the transmission control module 200 may control the inclination angle variable means 130 including the mirror control unit 230, and the mirror control unit 230 controls the illuminance inside the tunnel measured by the above-described illuminance sensor, And the position of the display area 10 in which the hologram is displayed according to the external illuminance and the speed of the vehicle passing through the tunnel, which can be measured through a camera for measuring vehicle speed, etc. as described above, via the inclination angle variable means 130 can be adjusted with

That is, the mirror control unit 230 eliminates the possibility that the hologram image may not be clearly visible when the illuminance of the display area 10 is high, and furthermore, the hologram playback device ( As a solution to the concern that the holographic image provided through 100) may not be properly provided, the display area 10 is variable by changing the display area 10 to a position having relatively low illuminance among several positions where illuminance is measured by the illuminance sensor. The hologram image can be transmitted to the displayed display area 10 so that traffic information provided as a hologram can be more clearly provided to the driver.

Herein, when the display area position adjustment according to the illuminance and vehicle speed through the mirror controller 230 is described in more detail, the mirror controller 230 includes the illuminance value calculation part 231 , the final numerical value calculation part 232 , and position adjustment. It may consist of parts 233 .

The illuminance value calculation part 231 compares the illuminance inside the tunnel and the illuminance outside the tunnel measured near the tunnel entrance and calculates the primary illuminance value based on this. That is, the illuminance inside the tunnel and the illuminance outside the tunnel are obtained, and a comparison value is calculated by comparing the illuminance.

Here, since there is no limitation on the method of calculating the primary illuminance value, the average value of the illuminance inside the tunnel and the illuminance outside the tunnel may be applied as the primary illuminance value, or the primary illuminance value may be calculated in other ways. Therefore, if it is possible to compare the illuminance inside and outside the tunnel, various equations may be applied to calculate the primary illuminance value.

In general, since illuminance is expressed in lx units, the primary illuminance value, which is a comparison of the corresponding illuminance values, also has lx units without a separate unit conversion.

The final numerical calculation part 232 reflects the speed of the vehicle in the calculated primary illuminance value, which is a comparison value of the calculated tunnel interior and exterior illuminance, and calculates the final numerical value based on this. Here, the final numerical value is calculated based on Equation 1 below.

Equation 1,

는 최종 수치,

는 차량의 속도(km/h),

는 속도 가중치로써

,

는 1차 조도 수치,

는 조도 가중치로써

이다.here,

is the final figure,

is the speed of the vehicle (km/h),

is the speed weight

,

is the primary illuminance value,

is the illuminance weight

am.

Here, when providing a hologram of traffic information, it can be said that the speed of the vehicle is more important than the illuminance in adjusting the position of the display area 10 , so the speed weight has a relatively high value compared to the illuminance weight.

Therefore, it can be said that a significant weight is given to the high-importance speed value, the primary illuminance value is corrected to have a relatively low importance, and then the two variables are correlated through a series of algorithms to produce a meaningful comparison value. have.

As an example, when the vehicle speed is 80 km/h, the speed weight is 3.0, the primary illuminance value is 250 lx, and the illuminance weight is 1.5,

is calculated.

Therefore, the final numerical value calculated in this way is a value that can compare the speed of the vehicle, the illuminance inside the tunnel, and the illuminance outside the tunnel near the entrance. Adjustable.

To this end, the position adjustment part 233, which is a detailed configuration of the mirror control unit 230, operates the inclination angle variable means 130 according to the height of the final value calculated based on Equation 1 to display the hologram display area 10. adjust the position of

For example, when the final value is high, as the illuminance inside and outside the tunnel is high and the vehicle speed is high, the position of the display area 10 is adjusted close to the center to output the traffic information hologram in the forward direction.

6 is a conceptual diagram illustrating a configuration for adjusting the size of a display area;

Referring to FIG. 6 , the system of the present invention can control the position of the display area 10 on which the hologram is output, and also adjust the size of the display area 10 itself.

To this end, the transmission control module 200 includes a size adjustment unit 240 that controls the display area 10 to output a hologram only in the active area 11 including an area having a size smaller than the entire area of the display area 10 . may further include.

In this case, the size adjustment is basically based on the amount of power. If the power consumption through the hologram reproducing device 10 is too high, the power consumption amount by outputting the hologram only in the active area 11 in which the size of the display area 10 is reduced. will be able to reduce Therefore, it is possible to reduce power consumption through this.

Here, the active area 11 refers to an area in the display area 10 to which traffic information is output, and the inactive area refers to an area in the display area 10 to which traffic information is not output. Accordingly, when traffic information is output only from the active area 11 , which is smaller than the entire area of the display area 10 , it is natural that the amount of power is saved.

That is, the hologram reproducing apparatus 10 of the present invention should have a function to output traffic information only in the active area 11, and at the same time set or select the active area 11 under the control of the controller 30, Of course, it is necessary to have a function that can be changed.

Further, as described above, it has been said that the position of the display area 10 can be adjusted based on the illuminance and the speed of the vehicle. may reflect

Preferably, in the case of size adjustment, since the purpose of power control is to control the size, it is preferable to adjust the size according to the environment inside the tunnel. Therefore, for this purpose, the size of the display area 10 can be adjusted based on the illuminance inside the tunnel, the speed of the vehicle, and the amount of vehicle traffic that can be called the number of receiving holograms through the hologram reproducing apparatus 100 . The controller 30 of the present invention may include a traffic volume collection module 400 for collecting vehicle traffic, and the size adjustment unit 240 may include a relative numerical value calculation part 241 and a size adjustment part 242 . can

The traffic volume collection module 400 performs a function of collecting the traffic volume of the vehicle for the tunnel for each specific time. It is the number of vehicles passing through. Accordingly, it is possible to determine how many vehicles are passing through the corresponding tunnel through the traffic volume collection module 400 .

The relative value calculation part 241 includes the illuminance inside the tunnel that can be measured through the above-described illuminance sensor, the speed of the vehicle that can be measured through the camera for detecting the vehicle speed, and a preset reference time (for example, , it has a function of calculating a relative value based on the amount of vehicle traffic, which can be said to be the number of vehicles passing during one hour).

Here, the relative value may be calculated in various ways, but preferably, the relative value is calculated based on Equation (2).

Equation 2,

는 상대수치,

는 차량의 속도(km/h),

는 속도 가중치로써

,

는 터널 내부의 조도(lx),

는 터널 가중치로써

,

는 차량 통행량,

는 통행량 가중치로써

이다.here,

is a relative number,

is the speed of the vehicle (km/h),

is the speed weight

,

is the illuminance inside the tunnel (lx),

is the tunnel weight.

,

is the vehicle traffic,

is the traffic weight

am.

Here, as described above, the speed of the vehicle, which is the most important point to be considered when providing traffic information to the vehicle, has the highest weight.

Next, the weight according to the illuminance inside the tunnel, which is important for power control, is the tunnel weight and has the second largest value after the vehicle speed weight. This is similar to the illuminance weight, but reflects only the inside, not the outside of the tunnel.

This can be said to be similar to Equation 1 described above, but as the number of variables is diversified and the variables are different, some variables and value calculation methods are differentiated by reflecting these points, and calculated according to the importance of speed, illuminance, and vehicle traffic. It has been corrected for numerical values.

Here, the vehicle traffic may be referred to as the number of vehicles that have passed through the tunnel during a preset calculation period (eg, 1 hour) based on the time of calculating the relative value, and the vehicle speed is calculated for each vehicle. That is, the relative value is a value that changes every time each vehicle passes through the tunnel.

For example, the speed of a specific vehicle is 80 km/h, the speed weight is 3,0, the illuminance inside the tunnel is 200 lx, the tunnel weight is 1.7, the vehicle traffic during the reference time is 100 vehicles, and the traffic weight is 1.2 let's say At this time,

is calculated.

Therefore, in the case of calculating such a relative value, the value can be calculated by comparing the vehicle speed, the illuminance inside the tunnel, and the amount of vehicle traffic in the tunnel, and at the same time, the importance of each variable is algorithmized and corrected and reflected. By making this possible, the objectivity of the calculated comparative value was enhanced.

The size adjustment part 243 is the display area ( 10) plays a role in controlling the size.

Therefore, this enables smart power control for holographic image output by allowing the size of the display area 10 to be controlled according to the speed of the vehicle, the illuminance inside the tunnel, and the amount of vehicle traffic.

Further, the system of the present invention may further include a reserve power supply means (not shown) that is provided on one side of the hologram playback device 100 and can supply reserve power to the hologram playback device 100 . have.

This reserve power supply means is disconnected or an abnormal situation occurs (for example, when a vehicle hits the support of the hologram playback device 100 inside a tunnel and the power line connected to the hologram playback device 100 is disconnected, heavy snow, heavy rain, typhoon In the event of power cut off due to the occurrence of a natural disaster, etc.), the reserve power can be supplied to the hologram reproducing apparatus 100 .

Such a reserve power supply means would be more preferable if it was capable of self-generation, such as a solar panel, or may be a means such as a battery capable of supplying power to supply power. Therefore, as long as it can supply the reserve power to the hologram reproducing apparatus 100 in case of an emergency, the type is not limited.

The reserve power supply means is based on being provided on one side of the hologram reproducing apparatus 100, and can be said to be a power supply means in a kind of emergency situation. In addition, this reserve power supply means is also connected to the controller 30 via communication, so that whether power is supplied through the reserve power supply means 40 via the controller 30 is controlled.

In addition, when the reserve power supply means is provided in this way, the controller 30 of the present invention may further include a reserve power control module 300 to control whether the reserve power is supplied through the power line. This reserve power control module 300 may be basically composed of a disconnection detection unit 310 and an operation control unit 320 .

The disconnection detection unit 310 performs a function of determining whether a power line that is connected to the hologram reproducing apparatus 100 and supplies power is disconnected. This is to detect a state in which the voltage of a specific power line suddenly drops, or the hologram playback device 100 is not operated because power is not supplied to the specific hologram playback device 100 for no reason, or the voltage of a specific power line drops for no reason. In this case, it is possible to detect that a disconnection has occurred, and in this way, it is possible to determine whether a disconnection has occurred. It goes without saying that it is also possible to detect the disconnection in various ways.

The operation control unit 320 controls the operation of the spare power supply means according to whether the power line connected to the hologram reproducing apparatus 100 identified through the disconnection detecting unit 310 is disconnected, thereby causing the spare power supplying means to cause the hologram reproducing apparatus 100 to operate. ) to provide a reserve power directly to the Therefore, it is to prepare for an emergency so that the hologram reproducing apparatus 100 can operate smoothly even in a disconnection situation.

However, in such an emergency situation, since the hologram reproducing apparatus 100 depends on the spare power supply means, it can be said that the amount of power must be minimized. Therefore, in this reserve power supply situation, it may be said that the size of the display area 10 needs to be adjusted in order to reduce the amount of power. The size of the display area 10 may be controlled so that the hologram is output only in the active area 11 including the area having a size.

This is the same as the configuration of the size adjustment part 242 described above, but it can be said that the size of the display area 10 is controlled only in a standby power supply situation, not in a general situation, and the detailed description of the size adjustment part 242 is Since the above description may be referred to, a detailed description thereof will be omitted.

In addition, in the supply of spare power through the spare power supply means, it can be said that it is important to predict the power usage, the remaining amount, and the discharge time through the spare power supply means. Although reserve power must be continuously supplied, the hologram reproducing device 100 can continuously supply traffic information even in emergency situations where disconnection occurs due to various reasons such as natural disasters or accidents such as typhoons, heavy snow, heavy rains, and earthquakes. This is because, based on the discharge time of the power supply means, it is possible to predict how long it will take to solve the disconnection problem.

To this end, the reserve power control module 300 may calculate the electric power consumption of the reserve power supply means, including the usage calculation unit 330 and the discharge time prediction unit 340 , and estimate the discharge time based thereon.

The usage calculation unit 330 serves to calculate the power usage and the remaining amount of power in the spare power supply means, which is a kind of battery, for each specific time. This calculates the power supplied to the hologram reproducing apparatus 100 from the reserve power supply means (the unit may be mainly kWh), and in addition, the reserve power supply means for each specific time unit (eg, 1 hour unit) It calculates the power consumption at that time compared to the total amount of power of the device to calculate the remaining power reserve, which is the amount of power that can be supplied to the electronic sign board.

The discharge time prediction unit 340 is finally discharged, which is the remaining time until the point at which the spare power supply means is expected to be discharged based on the power usage calculated through the above-described usage calculation unit 330 and the remaining amount of spare power. Provides a function to predict time. For example, if the current time is 9:00 AM on February 24, and the expected time for the standby power supply means to be discharged is February 24, 11:00 AM, the discharge time will be 11:00 AM on February 24, thus, until the discharge time The remaining time is calculated as 2 hours (120 minutes).

In this way, when the discharge time is predicted, the size adjustment unit 240 may further include a correction value calculation part 243 as a detailed configuration to perform power control of the hologram reproducing apparatus 100 by reflecting the discharge time. .

The correction value calculation part 243 not only reflects the illuminance inside the tunnel and the speed of the vehicle, but also calculates the correction value by reflecting the discharge time described above, which is similar to the relative value, but the discharge time, not the vehicle traffic. There is a difference that reflects At this time, the correction value is calculated based on Equation 3 below.

Equation 3,

는 보정수치,

는 차량의 속도(km/h),

는 속도 가중치로써

,

는 터널 내부의 조도(lx),

는 터널 가중치로써

,

는 방전 시간(분),

는 시간 가중치로써

를 의미한다.here,

is the correction value,

is the speed of the vehicle (km/h),

is the speed weight

,

is the illuminance inside the tunnel (lx),

is the tunnel weight.

,

is the discharge time in minutes,

is the time weight

means

This can be determined to be similar to Equation 2 described above, but the vehicle traffic variable is omitted and the discharge time is reflected in its place.

Such a correction value calculation can also calculate the value by reflecting the vehicle speed, the illuminance inside the tunnel, and the discharge time of the corresponding reserve electric power in a situation where emergency reserve electric power is supplied through the reserve electric power supply means. The objectivity of the calculated comparative value was enhanced by making each variable's importance algorithmized and corrected to reflect it.

In addition, when the correction value is calculated in this way, the size adjustment part 242 is an active area 11 including an area having a size smaller than the entire area of the display area 10 depending on whether the reserve power is supplied and the correction value. The display area 10 is controlled to output the hologram only in the . In general, as the correction value is higher, the size of the display area 10 , that is, the active region 11 , becomes larger, and as the correction value is smaller, the size of the display region 10 , that is, the active region 11 becomes smaller. .

Further, as in the configuration of the above-described relative values, the amount of vehicle traffic may be further reflected in the correction value as well. By reflecting the traffic volume in the numerical value, the correction value can be supplemented once more.

To this end, the size adjustment unit 240 further includes a supplementary numerical value calculation part 244 , and the supplementary numerical value calculation part 244 calculates a supplementary numerical value obtained by correcting the corrected numerical value by reflecting the traffic volume of the vehicle in the corrected numerical value. perform the function In this case, the complementary value is preferably calculated through the following Equation (4).

Equation 4,

는 보완수치,

는 보정수치,

는 차량 통행량,

는 통행량 가중치로써

이다.here,

is the complementary value,

is the correction value,

is the vehicle traffic,

is the traffic weight

am.

Here, if the correction value is 23, the amount of vehicle traffic is 100, and the traffic weight is 1.2,

can be calculated.

Therefore, through the calculation of such supplementary values, it is possible to calculate the figures by reflecting all of the vehicle speed, the illuminance inside the tunnel, the discharge time of the spare power supply means, and furthermore, the amount of vehicle traffic in the tunnel. In this way, the size of the display area 10 can be adjusted.

In addition, when such a supplementary value calculation configuration is provided, the size adjustment part 242 is an active area ( In 11) only, the display area 10 is controlled to output the hologram. Here, in general, the larger the complementary value is, the larger the size of the display area 10, that is, the active area 11, and the smaller the supplemental value, the smaller the size of the display area 10, that is, the active area 11. .

7 is a cross-sectional view showing a hologram mirror equipped with a filter panel of the present invention.

Referring to FIG. 7 , the hologram reproducing apparatus 100 of the present invention may further include a filter panel 140 installed on the front surface of the hologram mirror 120 . Here, the filter panel 140 is installed on the front of the hologram mirror 120 and serves to protect the hologram mirror 120 from impact and penetration of dust.

In addition, the filter panel 140 is spaced apart from the hologram mirror 120 by a predetermined distance through a block-shaped support 141 provided with a plurality (preferably four or more) on one side of the front side of the hologram mirror 120 . In this case, when the filter panel 140 is installed in close contact with the hologram mirror 120 , it is possible to prevent heat accumulation between the filter panel 140 and the hologram mirror 120 .

The filter panel 140 includes a base made of a transparent material such as polypropylene (PP), polyethylene terephthalate (PET), and polymethylmethacrylate, and may not impede the transmission of traffic information. am.
As described so far, the configuration and operation of the smart control system of the image transmitting apparatus for guidance of a road tunnel according to the present invention are expressed in the above description and drawings, but this is only an example and the spirit of the present invention is not limited to the above description and It is not limited to the drawings, and various changes and modifications are possible without departing from the technical spirit of the present invention.

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10: display area 11: active area
30: controller 100: hologram playback device
110: information output unit 120: hologram mirror
121: mirror body 122: axis of rotation
130: inclination angle variable means 131: shaft
132: motor 133: fixed leg
200: transmission control module 210: transmission control unit
220: illuminance control unit 230: mirror control unit
231: illuminance numerical calculation part 232: final numerical calculation part
233: position adjustment part 240: size adjustment part
241: relative value calculation part 242: size adjustment part
243: Compensation value calculation part 244: Complementary value calculation part
300: reserve power control module 310: disconnection detection unit
320: operation control unit 330: usage calculation unit
340: discharge time prediction unit 400: traffic collection module

Claims (9)

As a smart control system of a video transmission device for guidance in a road tunnel,
a display area formed on one side of the tunnel;
an image transmission device comprising: an information output unit for outputting traffic information through a monitor;
a transmission control unit for controlling transmission of the traffic information to the display area; A controller including a transmission control module to
The transmission control module,
and a size adjusting unit for controlling the display area to output the hologram only in an active area comprising an area having a size smaller than the entire area of the display area. The method of claim 1,
At each entrance of the tunnel,
An illuminance sensor for measuring external illuminance near the entrance is provided;
The hologram playback device,
and an inclination angle variable means for varying the inclination angle of the hologram mirror,
The transmission control module,
and a mirror control unit for controlling the position of the display area in which the hologram is displayed by operating the inclination angle variable means according to the illuminance inside the tunnel and the external illuminance and the speed of the vehicle. Smart control system. 3. The method of claim 2,
The mirror control unit,
an illuminance value calculation part for calculating a primary illuminance value based on the illuminance inside the tunnel and the external illuminance;
a final numerical calculation part for calculating a final numerical value based on the first illuminance value and the speed of the vehicle;
and a position adjusting part for adjusting the position of the display area in which the hologram is displayed by operating the inclination angle variable means based on the final numerical value,
The final numerical calculation part is,
A smart control system for an image transmission device, characterized in that the final numerical value is calculated based on Equation 1 below.
Equation 1,

(here,

is the final figure,

is the speed of the vehicle (km/h),

is the speed weight

,

is the primary illuminance value,

is the illuminance weight

) delete The method of claim 1,
The size adjustment unit,
a relative numerical value calculation part for calculating a relative numerical value based on the illuminance inside the tunnel, the speed of the vehicle, and the amount of vehicle traffic in the tunnel;
and a size adjustment part for controlling the display area to output the hologram only in an active area including an area having a size smaller than the entire area of the display area based on the relative value,
The relative numerical calculation part is,
A smart control system for an image transmitting device, characterized in that the relative value is calculated based on the following Equation (2).
Equation 2,

(here,

is a relative number,

is the speed of the vehicle (km/h),

is the speed weight

,

is the illuminance inside the tunnel (lx),

is the tunnel weight.

,

is the vehicle traffic,

is the traffic weight

) The method of claim 1,
The system is
It includes a; reserve power supply means provided on one side of the hologram reproducing apparatus to supply spare power to the hologram reproducing apparatus;
The controller is
A reserve power control module comprising: a disconnection detecting unit for determining whether a power line connected to the hologram reproducing apparatus is disconnected; further comprising,
The size adjustment unit,
and a size adjustment part for controlling the display area to output the hologram only in an active area comprising an area having a size smaller than the entire area of the display area according to the supply of the spare power. Smart control system. 7. The method of claim 6,
The reserve power control module,
A usage calculation unit for calculating the power usage and the remaining power of the spare power supply means for each specific time;
and a discharge time prediction unit for predicting a discharge time of the spare power supply means based on the power usage and the remaining amount of spare power,
The size adjustment unit,
and a correction value calculation part for calculating a correction value based on the illuminance inside the tunnel, the speed of the vehicle, and the discharge time,
The size adjustment part,
The display area is controlled to output the hologram only in an active area including an area having a size smaller than the entire area of the display area according to whether the reserve power is supplied and the correction value,
The correction value is
A smart control system for an image transmission device, characterized in that it is calculated based on Equation 3 below.
Equation 3,

(here,

is the correction value,

is the speed of the vehicle (km/h),

is the speed weight

,

is the illuminance inside the tunnel (lx),

is the tunnel weight.

,

is the discharge time in minutes,

is the time weight

) delete delete

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