KR102189175B1 - Night lane vehicle guidance facility - Google Patents

Abstract

The present invention relates to a collision accident prevention system in a sharp curve zone capable of preventing a vehicle collision accident in a sharp curve zone by using a road marker embedded in the road. According to one aspect of the present invention, a system for preventing a vehicle collision in a sharp curve zone comprises: a plurality of road markers embedded at intervals in the center of the road; and at least two vehicle detection means electrically connected to the plurality of road markers. Each of the plurality of road markers is configured to illuminate in at least two different colors toward both sides of the road, and each of the at least two vehicle detection means is installed at each one of the lanes on both sides of the road. In the plurality of road markers, at least two different colors are configured to be turned-on or turned-off according to the vehicle detection result in the at least two vehicle detection means.

Description

Night lane vehicle guidance facility {NIGHT LANE VEHICLE GUIDANCE FACILITY}

The present invention relates to a night lane vehicle guidance facility, and to a facility capable of guiding a night lane vehicle in a sharp curve area using a road marker.

As the population of the elderly is increasing and the number of elderly drivers is increasing rapidly, improved visibility of roads during night driving is emerging as a very important factor. As a measure to increase visibility, retroreflective road signs that respond to vehicle headlights at the center line or edge (or border line) of the road are installed and operated on most roads.

According to the survey, traffic accidents were reduced by 30% on straight roads with markers and 46% on curved roads. In addition, Korea Expressway Corporation's research results suggest that if the visibility of lanes is increased, traffic accidents can be reduced by about 18-40%.

Existing retro-reflective road signs installed on roads with rain or snow at night dramatically reduce the visibility of roads and lanes. An alternative proposed for drivers to secure road visibility even in the adverse conditions mentioned above is the LED road sign.

9 is an installation view showing an example of a conventional LED road marking bottle. As shown in Fig. 9, the road marker is installed by being embedded in the center of the lane. In the case of the LED road sign installed in this way, the visibility is improved compared to the existing retro-reflective road sign, but it is only used for lane division.

In other words, the road marker itself can reduce traffic accidents in the lane, but it can be said to be efficient in the same section as a straight lane, and LED road markers in the sharp curve section of the one-way 1 lane or the S-shaped sharp curve section. Even if this is installed, it is not possible for the driver to know whether or not a vehicle is on the opposite lane, and vehicle accidents are frequently occurring due to it.

In addition, in the case of conventional retro-reflective road signs and LED road signs, most of them are installed protruding on the road surface, so whenever the vehicle passes through the road signs, the resulting shock is applied, causing frequent breakdowns, and accordingly, maintenance is difficult. A problem arises, and in the case of a vehicle, there is a problem that the ride comfort is deteriorated due to a collision with a road marker.

The present invention is an invention conceived to solve the above-described problem, and prevents a collision accident in a sharp curve zone or a general road that can prevent a vehicle collision accident in a sharp curve section or a general road by using a road marker embedded in the road. It aims to provide a vehicle guidance facility for night lanes.

In addition, the present invention embeds road markers used in accident prevention and night lane vehicle guidance facilities in the road and exposes and matches only the upper surface of the road marker to the road surface, so that even if the vehicle passes the road marker, the impact applied to the road marker is It has a structure that minimizes the structure, and thus the durability of road markers is improved to prevent a collision accident in a sharp curve area and to provide a vehicle guidance facility at night.

In order to solve the above-described problems, according to one aspect of the present invention, there is provided a system for preventing a vehicle collision accident or guiding a vehicle in a night lane in a sharp curve area or on a general road, and this facility includes: The facility includes a plurality of road markers buried at intervals in the center of the road; And at least two vehicle detection means electrically connected to the plurality of coating markers, each of the plurality of road markers being configured to illuminate in at least two different colors toward both sides of the road, and detecting at least two vehicles Each of the means is installed one at each of the lanes on both sides of the road, and the plurality of road markers are configured to turn on (ON) or turn off (OFF) at least two different colors according to vehicle detection results from at least two vehicle detection means. .

In the above-described aspect, the at least two vehicle detection means include a first vehicle detection means for detecting an oncoming vehicle in the first vehicle traveling direction, and a second vehicle detection means for detecting an oncoming vehicle in the second vehicle traveling direction. In addition, the road marker includes a first LED group emitting light in a first color toward a first vehicle traveling direction, and a second LED group emitting light in a second color toward a second vehicle traveling direction, and a plurality of road markers Is configured to turn on or off the first LED group and the second LED group in response to vehicle detection results of the first vehicle detection means and the second vehicle detection means.

In addition, in the above-described aspect, the plurality of road markers correspond to the vehicle detection results of the first vehicle detection means and the second vehicle detection means, and when no vehicle is detected by both the first vehicle detection means and the second vehicle detection means, the A first operation mode in which both the 1 LED group and the second LED group are turned off; A second operation mode in which the first LED group is turned on and the second LED group is turned off when the vehicle is detected by the first vehicle detection means while the vehicle is not detected by the second vehicle detection means; A third operation mode in which the first LED group is turned off and the second LED group is turned on when the vehicle is not detected by the first vehicle detection means while the vehicle is detected by the second vehicle detection means; And a fourth operation mode in which both the first LED group and the second LED group are lit when a vehicle is detected by both the first vehicle detection means and the second vehicle detection means.

In addition, in the above-described aspect, when a vehicle is detected by the second vehicle detection means while the plurality of road markers are operating in the second operation mode in which the first LED group is turned on and the second LED group is turned off, the plurality of road markers The second group LED is turned on to operate in the fourth operation mode.

Also similar to the above-described aspect, when a vehicle is detected by the first vehicle detection means while the plurality of road markers are operating in the third operation mode in which the first LED group is turned off and the second LED group is lit The first group LED of the road sign is turned on to operate in the fourth operation mode.

In addition, in the above-described aspect, each of the plurality of road marking bottles includes an upper element casing an upper portion of the LED assembly; A lower element for accommodating the LED assembly therein; And a cable for electrically connecting with another road marker and the first and second vehicle detection means.

In addition, in the above-described aspect, the LED assembly includes a control box including a control circuit of the LED; A first substrate including a first LED group formed on an upper portion of the control box; A second substrate including a second LED group formed on the control box; It includes a triangular reflective plate provided between the first substrate and the second substrate, and light from the first LED group is reflected by the triangular reflective plate to be illuminated in the first vehicle traveling direction, and from the second LED group The light is reflected by the triangular reflective plate and illuminated in the second vehicle traveling direction.

According to the present invention, it is possible to provide a crash accident prevention system in a sharp curve area, which can prevent a vehicle collision accident in a sharp curve section or a general road, and guide a vehicle in a night lane by using a two-way road marker embedded in the road. .

In addition, according to the present invention, a two-way road marker is embedded in the road and only the upper surface of the road marker is exposed or matched to the road surface, thereby minimizing the impact on the road marker even if the vehicle passes through the road marker. The durability of the can be improved.

1A is a view showing the overall configuration of a vehicle guidance facility for preventing collisions such as a collision in a sharp curve zone or at night according to the present invention;
1B is a view for explaining the operating principle of a collision accident prevention or night lane vehicle guidance facility in a sharp curve area according to the present invention;
Figure 2a is a perspective view showing the appearance of a two-way road marker used in the collision accident prevention and night lane vehicle guidance facility in a sharp curve zone according to the present invention;
Fig. 2B is an assembly view showing the overall configuration of a two-way road sign used in a vehicle guidance facility for preventing a collision in a sharp curve zone and the like according to the present invention;
3 is a view showing the configuration of the LED assembly of the two-way road marking bottle according to the present invention;
4 is a view showing an embodiment of the embedding of a two-way road marking bottle according to the present invention;
5A and 5B are views for explaining the operation of a two-way road marker in the crash accident prevention system according to the present invention;
Figure 6 is a view schematically showing the internal configuration of the control box of the LED assembly according to the present invention;
7 is a flow chart showing the operation flow in the control unit of the LED assembly according to the present invention.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to embodiments to be described later in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention, and to completely inform the scope of the invention to those of ordinary skill in the art to which the present invention belongs. And the invention is only defined by the scope of the claims. Accordingly, in some embodiments, well-known components, well-known operations, and well-known techniques have not been described in detail in order to avoid obscuring interpretation of the present invention.

The same reference numerals refer to the same components throughout the specification. In addition, the terms used in the present specification (referred to) are for describing exemplary embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. In addition, components and operations referred to as'comprising (or having)' do not exclude the presence or addition of one or more other components and operations.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless defined. Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1A and 1B are views showing an example of an accident prevention or night lane vehicle guidance facility 1 in a sharp curve area according to the present invention. 1A and 1B, the accident prevention or night lane vehicle guidance facility 1 in a sharp curve area according to the present invention includes a plurality of road markers 200 and a plurality of road markers 200 buried at intervals in the center of the road. It includes at least two vehicle detection means electrically connected to the coating label 200.

As shown in Fig. 1B, a plurality of road markers are buried in the center of the one-way primary lane. In FIG. 1B, the road marker 200 is exemplified as being buried between the line markings of the center lane, but the present invention is not limited thereto, and may be buried at various locations such as the center lane or both ends of the road.

For example, FIG. 5A shows an example in which a plurality of road markers 200 are buried between the line markings of a curved one-way lane, and FIG. 5B shows a plurality of road markers 200 in a straight one-way primary lane. It shows an example buried at both ends of the marking.

On the other hand, here, the plurality of road markers 200 may be configured to embed road markers at both ends of the road width in a road with a one-way one-way lane or more of a curved or straight line. It may be configured to be buried at the edges of both ends at the same time, and each separate marker may be configured at the center of the road or at both ends of the road width.

Referring again to FIGS. 1A and 1B, the plurality of road markers 200 are electrically connected to two vehicle detection means 100a and 100b. The first vehicle detection means 100a is installed on a structure such as a streetlight around the road to detect a vehicle in the first traveling direction, and the second vehicle detecting means 100b is similarly used to detect a vehicle in the second traveling direction. It is installed in structures such as street lights around.

As shown in Figure 1a, the first vehicle detection means (100a) is each connected to a plurality of road markers 200 through an electrical connection means such as a cable, and the second vehicle detection means (100b) is an electrical connection such as a cable. Each is connected to the plurality of road markers 200 through means, and the blinking of the LEDs of the plurality of road markers 200 detects the vehicle of the first vehicle detection means 100a and/or the second vehicle detection means 100b. It works according to the result. The blinking operation of the LEDs of the plurality of road markers 200 will be described later in detail.

2A and 2B are views showing an example of a road marking bottle 200 used in the accident prevention system 1 in a sharp curve area according to the present invention. As shown in FIGS. 2A and 2B, the road marking bottle 200 includes an upper element 230 casing the upper part of the LED assembly 220; It includes a lower element 210 for accommodating the LED assembly 220 therein and a cable 240 for electrically connecting with another road marking bottle 200 or a plurality of vehicle detection means 100a and 100b.

Specifically, the road marking bottle 200 is installed on the top of the cover glass 231 and the cover glass 231 installed on the top of the LED assembly 220 with the LED assembly 220 as the center, as shown in FIG. It includes a cover packing 233 providing airtightness, a cover plate 235 installed on the top of the cover packing 233 to fix the cover glass and components of the cover packing to the lower element 210, and the cover plate 235 ) Is fixed to the outer cover 211 through the inner cover 213 of the lower element 210 by the cover bolt 237.

The LED assembly 220 is accommodated in the inner cover 213, and the inner cover 213 is once again received by the outer cover 211, and the inner and outer covers are the upper element 230, that is, the cover packing ( 233, a cover plate 235, and a cover bolt 237 are tightly fixed to each other. Accordingly, the LED assembly 220 is guaranteed to have airtightness and waterproofness by the upper element and the lower element, thereby improving durability.

4 is a view showing in more detail the LED assembly 220 of the road marking bottle 200 used in the accident prevention system 1 in the sharp curve area according to the present invention. As shown in FIG. 4, the LED assembly 220 includes at least two LED groups, that is, a first LED group 221 and a second LED group 223.

A triangular reflective plate 225 is installed between the first LED group 221 and the second LED group 221 as shown. That is, the light from the first LED group 221 is reflected through the triangular reflective plate 225 and passes through the cover glass 231 and is irradiated to the outside in the first direction, that is, from the second LED group 223 The light of is reflected through the reflective plate 225, passes through the cover glass 231, and is irradiated to the outside in the second direction. The angles of the irradiation light emitted from the first LED group 221 and the second LED group 223 exist within a range of approximately ±45 to 50° from a direction perpendicular to the horizontal plane.

The first LED group 221 may be formed of a combination of RGB LED light emitting devices or may be formed of any one of RGB, and the first LED group 223 may be formed of a combination of RGB LED light emitting devices or It may be formed of any one LED light emitting device. When the first LED group 221 and the second LED group 223 are formed using a single color LED element, the light emitted from the two LED groups is configured to be different from each other. For example, as shown in FIG. 3, the first LED group 221 may be composed of an RGB element to irradiate green (G) light or may be composed of only a G light-emitting element, and the second LED group 223 is red (R) It may be composed of an RGB element to irradiate light, or may be composed of only an R light emitting element.

As shown in FIG. 3, as the light from the first LED group 221 and the second LED group 223 is irradiated with different colors toward different directions, the driver Can be distinguished visually. The visual distinction by such different colors improves the driver's perception of the lane of oneself and the other, and improves the ability to concentrate on maintaining the lane. The operation modes of the first LED group 221 and the second LED group 223 will be described later.

As shown in FIG. 3 again, the LED assembly 220 includes a control box 2220 for controlling the light emission of the LED group under the first LED group 221, the reflective plate 225, and the second LED group 223. ) Is provided, and a bracket plate 227 for fixing the LED assembly 220 to the inner cover 213 is provided on both sides of the control box 2220, and a cable through a hole formed in the control box 2220 ( 240) is inserted. The cable 240 is securely fixed to the LED assembly 220 by means such as a bracket plate 227 or a cable holder 241 provided in the control box 2220.

4 is a diagram showing an example in which a plurality of road marking bottles 200 having the structure as described above are buried in the center of a road. As shown in FIG. 4, each of the plurality of road markers 200 is buried between the surface layer of the road and the base layer of the road, and at this time, the cover plate 235 located at the top of the road marker 200 is the surface of the road. And is located on a level almost horizontal. Here, the meaning of “near” means that it is exactly the same or visually the same height as the surface height of the surface layer.

Therefore, even if the vehicle passes above the road marker 200, the impact caused by the contact between the road marker 200 and the tire of the vehicle is minimized, thereby improving the life of the road marker 200, and the ride comfort of the vehicle. Also, it can be comfortably maintained without being disturbed by the road marker 200.

5A and 5B are views showing an installation example of a road marking bottle 200 used in the accident prevention system 1 in a sharp curve area according to the present invention. In the example shown in FIG. 5A, a plurality of road markers 200 are buried between the line markings of a curved one-way lane, and FIG. 5B shows a plurality of road markers 200 in a straight one-way primary lane. An example buried at both ends of the marking is shown, and the road marking bottles 200 installed in both embodiments are configured to irradiate light of different colors to each lane.

As shown in FIGS. 5A and 5B, a plurality of road markers 200 and the first and second vehicle detection means 100a and 100b are connected to each other through cables, etc., and power required for driving the LED is supplied to surrounding power. It can be supplied via cables from devices, for example street lights, solar cells.

6 is a view schematically showing the internal configuration of the road marking bottle 200. As shown in FIG. 6, the road marker 200 is received by a signal input unit 2221 and a signal input unit 2221 into which detection signals from the first vehicle detection means 100a and the second vehicle detection means 100b are input. And a control unit 2222 for controlling the first LED group driving unit 2223 and/or the second LED group driving unit 2224 according to the detected signal.

Basically, when the control unit 2222 receives a vehicle detection signal (first detection signal) from the first vehicle detection means 100a, it operates the first LED group driving unit 2223 to operate the first LED group emitting red light. , When receiving a vehicle detection signal (second detection signal) from the second vehicle detection means 100b, the second LED group driving unit 2224 is operated to operate the second LED group emitting green light.

Table 1 below is a table showing operation modes of the first LED group and the second LED group according to the detection results of the first and second vehicle detection means.

[Table 1]

As shown in Table 1, when no detection signal is input from the first vehicle detection means 100a and the second vehicle detection means 100b, the control unit 2222 in the control box 2220 includes a first LED group driving unit ( 2223) and the second LED group driver 2223 are not provided with any driving signals, and therefore, in the first operation mode, both the first LED group and the second LED group are turned off.

The second operation mode is operated when the first vehicle detection means 100a detects the vehicle and no detection signal is input from the second vehicle detection means 100b. The control unit 2222 in the control box 2220 transmits a driving signal to the first LED group driving unit 2223, but does not provide a driving signal to the second LED group driving unit 2223. Therefore, in the second operation mode, Only the LED group will emit light.

In contrast to the second operation mode, the third operation mode operates when the first vehicle detection means 100a does not detect the vehicle and a vehicle detection signal is input only from the second vehicle detection means 100b. The control unit 2222 in the control box 2220 does not provide a driving signal to the first LED group driving unit 2223, while providing a driving signal to the second LED group driving unit 2223, and thus, in the third operation mode, Only the LED group will emit light.

The fourth operation mode operates when both the vehicle detection signals are input from the first vehicle detection means 100a and the second vehicle detection means 100b. The control unit 2222 in the control box 2220 provides driving signals to both the first LED group driving unit 2223 and the second LED group driving unit 2223, and thus, the first LED group and the second LED in the fourth operation mode. All groups are illuminated.

The first operation mode and the fourth operation mode may be used in combination with each other according to a real-time detection result of the first vehicle detection means and the second vehicle detection means. For example, when the vehicle is detected only in the first vehicle detection means 100a and the second vehicle detection means 100b detects the vehicle while the road marking bottle 200 is operating in the first operation mode, the road marking bottle 200 is It operates in 4 operation mode.

For example, when the driver enters in the first direction, the accident prevention system 1 in the sharp curve area detects the driver's vehicle and operates the road marker 200 in the first operation mode (only red light is emitted). When the accident prevention system 1 in the sharp curve area detects that a car is entering from the opposite lane while operating the road marker 200 in the first operation mode, the accident prevention system 1 removes the road marker 200. 4 By operating in the operation mode (red and green light), the driver can see that the LEDs of different colors in the opposite lane are lit and that the vehicle is coming in the opposite lane.

7 is a flow chart showing the operation flow of the accident prevention system in the sharp curve area using the road marker 200 according to the present invention as described above. As shown in FIG. 8, first, in step S110, the control unit 2222 of the road marking bottle 200 maintains the first LED group 221 and the second LED group 223 in the initial operation mode, while the first vehicle detection means And a vehicle detection signal from the second vehicle detection means. Here, it is assumed that the initial operation mode is that both the first LED group 221 and the second LED group 223 are turned off.

If the vehicle detection signal is received from the first vehicle detection means (100a) and the second vehicle detection means (100b) in the subsequent step S120, the step proceeds to S130 or S135. In step S130, the received vehicle detection signal is the first vehicle It is determined whether it is the first vehicle detection signal transmitted from the detection means 100a, and in step S135, it is determined whether the received vehicle detection signal is the second vehicle detection signal transmitted from the second vehicle detection means 100b. .

When it is determined that the signal sensed in step S130 is the first detection signal from the first vehicle detection means 100a, the step proceeds to S140, and the control unit 2222 operates the first LED group driver to operate the first LED group. Turn it ON. On the other hand, if it is determined that the signal detected in step S130 is not the first detection signal from the first vehicle detection means 100a, the step proceeds to S142 and the control unit 2222 does not provide a driving signal to the first LED group driver. Therefore, the first LED group is turned off.

When it is determined that the signal sensed in step S135 is the second detection signal from the second vehicle detection means 100b, the step proceeds to S144, and the control unit 2222 operates the second LED group driving unit to operate the second LED group. Turn it ON. On the other hand, if it is determined that the signal detected in step S135 is not the second detection signal from the second vehicle detection means 100b, the step proceeds to S146 and the control unit 2222 does not provide a driving signal to the second LED group driver. Therefore, the second LED group is turned off. After the step proceeds to S120, the controller 2222 again waits for detection of the vehicle from the first vehicle detection means and the second vehicle detection means. However, when the vehicle is not detected for a certain period of time, the controller 2222 operates in the first operation mode in which both the first LED group and the second LED group are turned off, and is configured to wait for a detection signal to prevent unnecessary power consumption. can do.

As described above, although the embodiments have been described by the limited embodiments and drawings, various modifications and variations are possible from the above description by those of ordinary skill in the art. For example, the described techniques are performed in a different order from the described method, and/or components such as a system, structure, device, circuit, etc. described are combined or combined in a form different from the described method, or other components Alternatively, even if substituted or substituted by an equivalent, an appropriate result can be achieved.

Therefore, other implementations, other embodiments, and those equivalent to the claims should be construed as falling within the scope of the claims to be described later.

100, 100a, 100b: vehicle detection means
200: LED road sign
220: LED assembly
230: upper element
240: cable
210: lower element
221: first LED group
223: second LED group
2220: control box
2222: control unit
2223: first LED group driver
2224: second LED group driver

Claims (7)

In the night lane vehicle guidance facility,
The vehicle guidance facility includes a plurality of road markers buried at intervals at the center and both ends of the road;
The plurality of road markers include an LED assembly, a control box including a control circuit of the LED, a first substrate including a first LED group formed on the control box, and a second LED group formed on the control box. A second substrate comprising a, a triangular reflective plate provided between the first substrate and the second substrate, wherein the light from the first LED group is reflected by the triangular reflective plate in the first vehicle traveling direction Is illuminated, and the light from the second LED group is reflected by the triangular reflective plate to be illuminated in the second vehicle traveling direction; and,
Including; at least two vehicle detection means electrically connected to the plurality of road marking bottles,
Each of the plurality of road markers is configured to illuminate in at least two different colors toward both sides of the road, and each of the at least two vehicle detection means is installed one at each of the lanes on both sides of the road,
The at least two vehicle detection means are operated by a first vehicle detection means for detecting an oncoming vehicle in the first vehicle traveling direction and a second vehicle detection means for detecting an oncoming vehicle in the second vehicle traveling direction,
The road marking bottle includes a first LED group emitting light in a first color toward a first vehicle traveling direction, and a second LED group emitting light in a second color toward a second vehicle traveling direction,
The plurality of road markers is characterized in that the first LED group and the second LED group are turned on or off in response to vehicle detection results of the first vehicle detection means and the second vehicle detection means.
Night lane vehicle guidance facility.
delete The method of claim 1,
The plurality of road markers correspond to vehicle detection results of the first vehicle detection means and the second vehicle detection means,
A first operation mode in which both the first LED group and the second LED group are turned off when a vehicle is not detected by both the first vehicle detection means and the second vehicle detection means;
A second operation mode in which the first LED group is turned on and the second LED group is turned off when the vehicle is detected by the first vehicle detection means while the vehicle is not detected by the second vehicle detection means;
A third operation mode in which the first LED group is turned off and the second LED group is turned on when the vehicle is not detected by the first vehicle detection means while the vehicle is detected by the second vehicle detection means; And
When a vehicle is detected by both the first vehicle detection means and the second vehicle detection means, the first LED group and the second LED group are both operated in one of the fourth operation modes.
Night lane vehicle guidance facility.
The method of claim 3,
While the plurality of road markers are operating in a second operation mode in which the first LED group is turned on and the second LED group is turned off, when a vehicle is detected by the second vehicle detection means, the second group LEDs of the plurality of road markers are It is lit to operate in the fourth operation mode, characterized in that
Night lane vehicle guidance facility.
The method of claim 3,
While a plurality of road markers are operating in a third operation mode in which the first LED group is turned off and the second LED group is lit, when a vehicle is detected by the first vehicle detection means, the first group LEDs of the plurality of road markers are It is lit to operate in the fourth operation mode, characterized in that
Night lane vehicle guidance facility.
The method of claim 1,
Each of the plurality of road markers
An upper element casing the upper part of the LED assembly;
A lower element for accommodating the LED assembly therein; And
It characterized in that it comprises a cable for electrically connecting with another road marker and the first and second vehicle detection means
Night lane vehicle guidance facility.
delete

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