KR20160074991A - Streetlight Responding to Environment and Light Distribution Control Method therefor - Google Patents

Abstract

Disclosed are a pole-type streetlight device corresponding to environment, which can adaptively distribute light according to an environment and a position, and a light distribution control method thereof. According to the present invention, there is provided a pole-type streetlight device corresponding to environment which includes: a plurality of light emitting diode (LED) light sources having basic light distribution curves different from each other; a weather information receiving unit for receiving weather information about a road from a road weather measuring system; a light distribution combination determining unit for determining a light distribution combination of the LED light sources based on the weather information received from the weather information receiving unit; and a light distribution control unit for controlling each light distribution of the LED sources according to the light distribution combination determined by the light distribution combination determining unit.

Description

[0002] Streetlight Responding to Environment and Light Distribution Control Method Therefor [0003]

[0001] The present invention relates to a stock street lamp apparatus such as an environment-compatible lamp and a method of controlling the light distribution thereof, and more particularly, to a lamp apparatus that adjusts light distribution adaptively according to the environment and position of various roads, Environment that can prevent the adjustment of the dangerous road environment by adjusting the light distribution adaptively for the light conditions and preventing glare from occurring on the road surface due to the change of the weather condition to obstruct the sight of the driver or obstruct the detection of the lane And a light distribution control method thereof.

Generally, a street light is installed along the side of a car or a side of a car for the safety or aesthetics of lighting or traffic of a car or a road, and in particular, a car, By lighting, the driver is provided with a driving field of view so that safe driving can be achieved.

Meanwhile, the conventional street light is constituted by a supporting column provided at an interval set on the roadside, a lighting lamp provided on the upper end of the supporting column for illuminating the road, and a signal receiving device for receiving the lighting control signal from the lighting management control system or control panel And illuminates the road automatically by turning on or off according to the area, time and surrounding environment where the lighting lamp is installed.

However, according to the change of the environment, position, and weather condition of the road, glare occurs on the ground of the road due to the illumination of the streetlight mechanism rather than obstructing the view of the driver or making the detection of the lane impossible, Can occur. For example, as shown in FIG. 1, when a water film is formed on the road surface of a road during a rainy weather or when fog is formed at a position of a road, the driver's view is interrupted by the illumination of the streetlight mechanism, There is a problem in that it is impossible to detect the signal.

Published Japanese Patent Application No. 10-2006-0032374 (published on Apr. 17, 2006)

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to adaptively adjust the light distribution according to the environment and position of various roads, adaptively adjust the light distribution for the change of the weather conditions such as fog, rain, Such as an environment-friendly type that prevents glare from occurring on the road surface due to a change in the weather conditions, thereby preventing the driver's view or disturbing the detection of the lane, thereby preventing dangerous road environment. And to provide a control method.

According to an aspect of the present invention, there is provided a stock street lamp apparatus including: a plurality of LED (Light Emitting Diode) light sources having different basic light distribution curves; A weather information receiving unit for receiving weather information about a road in a road weather observation system; A light distribution combination determination unit that determines a light distribution combination of each of the LED light sources based on the weather information received by the weather information reception unit; And a light distribution control unit for controlling the light distribution of each of the LED light sources according to the light distribution combination determined by the light distribution combination determination unit.

The stock street lamp apparatus such as the above-mentioned environment-responsive type may further include a road surface state determination unit for determining the road surface state with respect to the road. In this case, the light distribution combination determiner determines the light distribution combination of each LED light source based on the weather information received by the weather information receiver and the road surface condition determined by the road surface condition determiner.

The stock street lamp apparatus includes a change light distribution storage unit for storing a light distribution curve corresponding to a degree of dimming in a database based on a basic light distribution curve for each LED light source; A light distribution pattern determining unit for determining a light distribution curve for each LED light source from a light distribution curve stored in the change light distribution storage unit in correspondence with the road surface state determined by the road surface state determination unit; And a dimming degree determining unit for determining a degree of dimming of each of the LED light sources corresponding to the light distribution curve determined by the light distribution curve determining unit based on the light distribution curve stored in the changed light distribution storage unit. In this case, the light distribution control unit controls the light distribution according to the degree of dimming of each LED light source determined by the dimming degree determining unit.

The stock street lamp apparatus includes a weather condition storage unit for storing weather information in a plurality of stages; And a light distribution combination setting unit that sets a light distribution combination of each of the LED light sources corresponding to a state of weather information for each step stored in the weather condition storage unit. In this case, the light distribution combination determining section determines the light distribution combination of the LED light sources corresponding to the weather information received by the weather information receiver based on the light distribution combination set in the light distribution combination setting section.

The stock street lamp apparatus including the above-described environment-responsive type includes a road surface state storage unit for storing a road surface state in a plurality of stages; And a light distribution pattern setting unit that sets a light distribution curve for each LED light source corresponding to the road surface state for each step stored in the road surface state storage unit. In this case, the light distribution pattern determining unit determines the light distribution curve for each LED light source corresponding to the road surface state judged by the road surface condition determining unit based on the light distribution curve set by the light distribution pattern setting unit.

According to an aspect of the present invention, there is provided a method of controlling a light distribution of a stock street lamp apparatus including a plurality of LED light sources having different basic light distribution curves, Receiving weather information for a road in a system; Determining a light distribution combination of each LED light source based on the weather information received by the weather information reception step; And controlling the light distribution of each LED light source according to the light distribution combination determined by the light distribution combination determination step.

The above-mentioned light distribution control method may further include a step of determining a road surface state with respect to the road. In this case, the light distribution combination determination step determines the light distribution combination of each LED light source based on the weather information received by the weather information reception step and the road surface state determined by the road surface state determination step.

The above-described light distribution control method includes the steps of: storing, in a database, a light distribution curve changed according to the degree of dimming based on a basic light distribution curve for each LED light source; Determining a light distribution curve for each LED light source corresponding to the road surface condition determined by the road surface condition determination step; And determining the degree of dimming of each LED light source corresponding to the light distribution curve determined by the light distribution curve determination step based on the light distribution curve stored by the light distribution curve storage step. In this case, the light distribution control step controls the light distribution according to the degree of dimming of each LED light source determined by the dimming degree determination step.

The above-mentioned light distribution control method includes the steps of: storing the weather information status in a plurality of stages; And setting and storing a light distribution combination of each LED light source corresponding to a state of weather information for each step stored by the weather information situation storage step. In this case, the light distribution combination determination step determines the light distribution combination of the LED light source corresponding to the weather information received by the weather information reception step based on the light distribution combination set and stored by the light distribution combination setting and storing step.

The light distribution control method includes the steps of: dividing a road surface state into a plurality of steps; And setting and storing a light distribution curve for each LED light source corresponding to the road surface state for each step stored in the road surface state storage step. In this case, the light distribution determination step determines the light distribution curve for each LED light source corresponding to the road surface state judged by the road surface state determination step based on the light distribution curve set by the light distribution curve setting and storage step.

According to the present invention, by using an LED light source having good linearity of light, it is possible to minimize light lost in the process of reaching the road surface from a high position.

In addition, according to the present invention, the light distribution curve of the streetlight device is controlled so that light can be irradiated only to a necessary area, thereby preventing light from being unnecessarily irradiated to the light source.

Further, according to the present invention, it is possible to minimize the occurrence of glare on the road surface by controlling the light distribution combination and the light distribution curve of the streetlight device according to the change of the terrain, the location, the surrounding environment, It is possible to reduce visual disturbance and to prevent the detection of the lane by the illumination of the streetlight mechanism.

1 is a diagram showing an example in which a dangerous road environment is created.
FIG. 2 is a view schematically showing a stock streetlight device such as an environment-compatible type according to an embodiment of the present invention.
Fig. 3 is a view showing an example of the arrangement form of a plurality of LED light sources.
4 is a diagram showing an example of a basic light distribution curve for each LED light source shown in FIG.
5 is a diagram showing an example of a light distribution curve by the combination of the LED light sources shown in Fig.
FIG. 6 is a diagram showing an example of a light distribution curve according to the degree of combination and dimming of the LED light sources shown in FIG. 3. FIG.
7 is a flowchart illustrating a light distribution control method according to an embodiment of the present invention.

Hereinafter, a stock street lamp apparatus and its light distribution control method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a view schematically showing a stock streetlight device such as an environment-compatible type according to an embodiment of the present invention.

2, a stock street lamp apparatus according to an embodiment of the present invention includes a plurality of LED light sources 102, a weather information receiving unit 104, a light distribution combination determination unit 106, a light distribution control unit 108, A road surface state determination unit 110, a modified light distribution storage unit 112, a light distribution shape determination unit 114, a dimming degree determination unit 116, a weather state storage unit 118, a light distribution combination setting unit 120, State storage unit 122 and a light distribution pattern setting unit 124. [

The plurality of LED light sources 102 may be installed in the back street lamps, and the LED light sources of different types may be combined as shown in FIG. At this time, as shown in FIG. 4, each type of LED light source is composed of different basic light distribution curves. For example, as shown in FIGS. 3 and 4, a plurality of LED light sources 102 may be implemented in the form of two LED light sources each having a basic light distribution curve of A type, B type, and C type . At this time, when the dimming degree of the LED light source of the corresponding type is set to 100%, the basic light distribution curve shows a curve showing the distribution of the luminous intensity in each direction in the plane around the LED light source as a function of direction It says. 3, the LED light source 102 is shown as a combination of two different types of LED light sources. However, the number of types that can be combined with each other and the number of each type may be variously changed . Further, the basic light distribution curves of the respective LED light sources shown in Fig. 4 are merely examples for explaining the present invention, and do not mean that the basic light distribution curves of the respective LED light sources to be combined are limited thereto.

The weather information receiving unit 104 receives weather information about the road from a road weather observation system (not shown). The road weather observation system is a system for observing the weather of an installation area of the stock street lamp 100 such as an environment-aware type according to an embodiment of the present invention, and is installed integrally with the stock street lamp 100 such as an environment- Or it may be an element of a weather observing server connected via a network.

The light distribution combination determiner 106 determines the light distribution combination of each LED light source 102 based on the weather information received by the weather information receiver 104. [ For example, as shown in Figs. 3 and 4, when the plurality of LED light sources 102 are composed of three types of LED light sources of A type, B type and C type, A light distribution combination for driving all the A type, B type and C type LED light sources, a light distribution combination for driving the A type and B type LED light sources, a light distribution combination for driving the B type and C type LED light sources The light distribution combination can be determined. At this time, the light-distribution combination determination unit 106 determines the light-distribution combination of the LED light sources based on the weather information received by the weather information reception unit 104 in accordance with weather conditions such as noon, evening, mist, rain, The combination can be determined.

The light distribution control unit 108 controls the light distribution of each LED light source 102 according to the light distribution combination determined by the light distribution combination determination unit 106. [ That is, the light distribution control unit 108 controls the driving of each LED light source according to the light distribution combination of each LED light source determined by the light distribution combination determination unit 106. [

The road surface state determination unit 110 determines the road surface state with respect to the road. That is, the road surface state determination unit 110 determines the road surface state of the road in the area where the stock street lamp apparatus 100 is installed, such as the corresponding environment-friendly type. At this time, the road surface state determination unit 110 can determine the road surface state as a dry state, a rain-covered state, a snowy state, or the like corresponding to the weather information received by the weather information receiving unit 104, It is possible to judge the degree by dividing the degree by the upper, middle, lower, and so on. The division of the road surface state described here is only an example for helping understanding the invention, and the road surface state determination unit 110 can judge the state of the road surface in variously divided states. In this case, the light distribution combination determiner 106 determines the light distribution combination of the respective LED light sources based on the weather information received by the weather information receiver 104 and the road surface condition determined by the road surface condition determiner 110 . That is, the light-distribution combination determiner 106 determines the degree of reflection of the road surface with respect to the LED light source and the weather condition according to the weather information received by the weather information receiver 104 and the road surface condition determined by the road surface condition determiner 110 The light distribution combination of each LED light source can be determined.

The changed light distribution storage unit 112 stores the changed light distribution curve according to the dimming degree based on the basic light distribution curve for each LED light source 102 in the database. 4, the degree of dimming is divided into 10%, 20%, and 30% corresponding to the basic light distribution curve when the degree of dimming is set to 100% The light distribution curve changed according to the degree of each dimming can be stored in the database. However, the degree of dimming described herein is only an example for the sake of understanding, and it goes without saying that the variable light distribution storage unit 112 can distinguish the dimming information in various stages.

The light distribution form determining unit 114 determines a light distribution curve for each of the LED light sources 102 from the changed light distribution curve stored in the change light distribution storage unit 112 according to the road surface state determined by the road surface state determination unit 110 . That is, the light distribution pattern determining unit 114 can determine the light distribution curves for the respective LED light sources 102 according to whether the road surface road surface state is wetted with rainwater, covered with snow, dry or the like. The light distribution pattern determination unit 114 may determine different light distribution curves for the respective LED light sources 102 according to the degree of road surface condition of each road. For example, if it is assumed that the combination of the LED light sources at 11:00 in the clear weather is a basic light distribution curve type of A-type and B-type, if the road surface condition is judged to be slightly wetted with rainwater, , The light distribution curve corresponding to the degree of 30% dimming of the A type can be determined and the light distribution curve corresponding to 100% of the B type can be determined. At this time, the light distribution shape determination unit 114 divides the road surface state into a plurality of steps, stores the changed light distribution curves stored in the change light distribution storage unit 112 corresponding to each of the divided steps, A light distribution curve that is matched and stored according to the road surface state determined by the road surface state determination unit 110 can be determined.

The dimming information determination unit 116 determines the degree of dimming of each LED light source 102 corresponding to the light distribution curve determined by the light distribution shape determination unit 114 based on the light distribution curve stored in the change light distribution storage unit 112 . That is, the dimming information determination unit 116 determines the dimming information of the light distribution curve corresponding to the light distribution curve determined by the light distribution shape determination unit 114, and accordingly, as shown in FIG. 6, The degree of dimming of the LED light source 102 is determined. In this case, the light distribution control unit 108 controls the light distribution according to the degree of dimming of each LED light source determined by the dimming degree determination unit 116. [

The weather condition storage unit 118 stores the weather information status in a plurality of stages. For example, the weather condition storage unit 118 may store the weather information received by the weather information receiving unit 104 in a clear weather, rain, snow, fog, or the like.

The light distribution combination setting unit 120 sets the light distribution combination of each LED light source 102 in accordance with the weather information status for each step stored in the weather condition storage unit 118. [ At this time, the light-distribution combination setting unit 120 may store the light-distribution combinations of the respective LED light sources 102 set in correspondence with the respective weather information states as a database. In this case, the light distribution combination determiner 106 determines the light distribution combination of the LED light sources corresponding to the weather information received by the weather information receiver 104 based on the light distribution combination set in the light distribution combination setter 120. [

The road surface state storage unit 122 may store the road surface state in a plurality of stages. At this time, the road surface state storage unit 122 may store the road surface state of the road in a plurality of stages corresponding to the weather information received by the weather information receiving unit 104. In addition, the road surface state storage unit 122 may store the degree of the road surface in a plurality of steps corresponding to the respective road surface states of the divided roads. For example, when the weather information received by the weather information receiver 104 is rainy, the road surface state storage unit 122 divides the road surface state into a state covered with rainwater, , And a lower level.

The light distribution pattern setting unit 124 sets a light distribution curve for each of the LED light sources 102 corresponding to the road surface state for each step stored in the road surface state storage unit 122. [ At this time, the light distribution pattern setting unit 124 may match the light distribution curves of the LED light sources 102 corresponding to the respective road surface states stored in the road surface state storage unit 122, and may store the light distribution patterns as a database. In this case, the light-distribution-form determining unit 114 determines the light-distribution pattern of each LED light source corresponding to the road surface condition determined by the road-surface-condition determining unit 110 based on the light distribution curve set by the light- Determine the light distribution curve.

7 is a flowchart illustrating a light distribution control method according to an embodiment of the present invention. The light distribution control method according to the embodiment of the present invention can be performed by the stock street lamp apparatus 100 such as the environment-compatible type shown in Fig.

Referring to FIG. 2 to FIG. 7, the stock street lamp apparatus 100 such as an environment-compatible type stores the weather information in a plurality of stages (S102). For example, the stock street lamp apparatus 100 such as an environment-responsive type can store the weather information in clear weather, rain, snow, fog, and the like.

The stock street lamp apparatus 100 such as an environment-responsive type sets and stores a light distribution combination of each LED light source 102 in accordance with the state of weather information for each stored step (S104). At this time, the stock street lamp apparatus 100 such as an environment-responsive type can store the light distribution combination of each LED light source 102 set in correspondence with the state of each weather information as a database.

The stock street light device 100 such as an environment-responsive type can store the road surface state in a plurality of stages (S106). At this time, the stock street lamp apparatus 100 such as the environment-responsive type can store the road surface state in a plurality of steps corresponding to each weather information. In addition, the stock street light device 100 such as an environment-responsive type may store the degree of the road by dividing it into a plurality of steps corresponding to the respective road surface states of the divided roads. For example, when the weather information is rainy, the stock street lamp apparatus 100 such as an environment-responsive type may classify the road surface state as being covered with rainwater, and store the rainwater in the upper, middle, and lower levels according to the degree of rain .

The stock street lamp device 100 sets and stores the light distribution curves for the respective LED light sources 102 corresponding to the road surface state for each of the stored steps (S108). At this time, the stock street lamp apparatus 100 such as an environment-compatible type may match the light distribution curves of the LED light sources 102 in correspondence with the stored road surface states, and store them as a database.

The stock street lamp device 100 stores the changed light distribution curve according to the degree of dimming in the database based on the basic light distribution curve for each LED light source 102 at step S110. That is, the stock street lamp apparatus 100 such as an environment-friendly type divides the degree of dimming into 10%, 20%, and 30% corresponding to the basic light distribution curve when the degree of dimming is assumed to be 100% The light distribution curve changed according to the degree of dimming can be stored in the database.

The stock street lamp device 100 such as the environment-responsive type receives the weather information about the road in the road weather observation system (S112). The road weather observation system is a system for observing the weather of an installation area of the stock street lamp 100 such as an environment-aware type according to an embodiment of the present invention, and is installed integrally with the stock street lamp 100 such as an environment- Or it may be an element of a weather observing server connected via a network.

The stock street lamp apparatus 100 such as an environment-responsive type judges the road surface state with respect to the road. That is, the stock street lamp apparatus 100 such as the environment-responsive type judges the state of the road surface of the road where the stock street lamp apparatus 100 is installed (S114). At this time, the stock street lamp apparatus 100 such as an environment-responsive type can determine the road surface state as a dry state, a rain-covered state, a snow-covered state, etc. corresponding to the received weather information, It is possible to judge the degree by dividing it by middle, middle, and so on.

The stock street lamp device 100 determines the light distribution curve for each LED light source 102 from the stored changed light distribution curve in accordance with the determined road surface state at step S116. That is, the stock street lamp apparatus 100 such as the environment-responsive type can determine the light distribution curve for each LED light source 102 according to whether the road surface state of the road is wet, rain-covered, dry or the like . In addition, the stock street lamp apparatus 100 such as the environmentally-compatible type may determine different light distribution curves for the respective LED light sources 102 according to the degree of road surface condition of each road. At this time, the stock street lamp apparatus 100 such as the environment-compatible type divides the road surface state into a plurality of stages, stores the changed light distribution curves corresponding to the respective stages, stores the light distribution curves, A light distribution curve that is matched according to the light distribution curve can be determined.

The stock street lamp device 100 such as the environment-responsive type determines the degree of dimming of each LED light source 102 corresponding to the light distribution curve determined based on the changed light distribution curve (S118). That is, the stock street lamp device 100 such as the environment-compatible type determines the dimming information of the light distribution curve corresponding to the determined light distribution curve, and accordingly determines the degree of dimming of each corresponding LED light source 102.

The stock street lamp apparatus 100 such as the environment-responsive type determines the light distribution combination of each LED light source 102 based on the received weather information (S120). At this time, the stock street lamp apparatus 100 such as the environment-responsive type can determine the light distribution combination of the different LED light sources in accordance with the meteorological conditions such as noon, evening, mist, rain, snow, etc. in clear weather based on the received weather information .

The stock street lamp device 100 such as the environment-responsive type controls the light distribution of each LED light source 102 according to the determined light distribution combination (S122). That is, the stock street lamp apparatus 100 such as the environment-responsive type controls the driving of each LED light source according to the determined light distribution combination of the respective LED light sources.

Claims (10)

A plurality of LED (Light Emitting Diode) light sources having different basic light distribution curves;
A weather information receiving unit for receiving weather information about a road in a road weather observation system;
A light distribution combination determining unit that determines a light distribution combination of each of the LED light sources based on the weather information received by the weather information receiver; And
A light distribution control unit for controlling the light distribution of each of the LED light sources according to the light distribution combination determined by the light distribution combination determination unit;
Wherein the lighting device comprises: The method according to claim 1,
A road surface condition determining unit for determining a road surface condition for the road;
Further comprising:
Wherein the light distribution combination determiner determines the light distribution combination of each LED light source based on the weather information received by the weather information receiver and the road surface condition determined by the road surface condition determiner. Instrument. 3. The method of claim 2,
A change light distribution storage unit for storing a light distribution curve changed according to a degree of dimming based on a basic light distribution curve for each of the LED light sources in a database;
A light distribution pattern determining unit for determining a light distribution curve for each of the LED light sources from a light distribution curve stored in the change light distribution storage unit, corresponding to the road surface state determined by the road surface state determination unit; And
A dimming degree determining unit for determining a dimming degree of each of the LED light sources corresponding to a light distribution curve determined by the light distribution curve determining unit based on a light distribution curve stored in the change light distribution storage unit;
Further comprising:
Wherein the light distribution control unit controls the light distribution according to the degree of dimming of each of the LED light sources determined by the dimming degree determining unit. The method of claim 3,
A weather condition storage unit for storing weather information in a plurality of stages; And
A light distribution combination setting unit that sets a light distribution combination of each of the LED light sources corresponding to a state of weather information for each step stored in the weather condition storage unit;
Further comprising:
Wherein the light distribution combination determining unit determines the light distribution combination of the LED light sources corresponding to the weather information received by the weather information receiver based on the light distribution combination set in the light distribution combination setting unit. . 5. The method of claim 4,
A road surface state storage unit for storing the road surface state of the road in a plurality of stages; And
A light distribution pattern setting unit that sets a light distribution curve for each of the LED light sources corresponding to a road surface state for each step stored in the road surface state storage unit;
Further comprising:
Wherein the light distribution pattern determining unit determines a light distribution curve for each of the LED light sources corresponding to a road surface condition determined by the road surface condition determining unit based on a light distribution curve set by the light distribution pattern setting unit Equipments such as environment-friendly street lamps. A method of controlling a light distribution of a stock streetlight apparatus including an environment-responsive type having a plurality of LED light sources having different basic light distribution curves,
Receiving weather information on a road in a road weather observation system;
Determining a light distribution combination of each of the LED light sources based on the weather information received by the weather information receiving step; And
Controlling light distribution of each LED light source according to a light distribution combination determined by the light distribution combination determination step;
Wherein the light distribution control method comprises the steps of: The method according to claim 6,
Determining a road surface condition for the road;
Further comprising:
Wherein the light distribution combination determination step determines the light distribution combination of each LED light source based on the weather information received by the weather information reception step and the road surface state determined by the road surface state determination step. 8. The method of claim 7,
Storing a light distribution curve corresponding to a degree of dimming based on a basic light distribution curve for each of the LED light sources in a database;
Determining a light distribution curve for each LED light source corresponding to a road surface condition determined by the road surface condition determination step; And
Determining a degree of dimming of each of the LED light sources corresponding to a light distribution curve determined by the light distribution curve determination step based on the light distribution curve stored by the light distribution curve storage step;
Further comprising:
Wherein the light distribution control step controls the light distribution according to the degree of dimming of each of the LED light sources determined by the dimming degree determination step. 9. The method of claim 8,
Storing the weather information in a plurality of stages; And
Setting and storing a light distribution combination of each LED light source corresponding to a state of weather information for each step stored by the weather information state storage step;
Further comprising:
Wherein the light distribution combination determination step determines a light distribution combination of the LED light source corresponding to the weather information received by the weather information reception step based on the light distribution combination set and stored by the light distribution combination setting and storing step Light distribution control method. 10. The method of claim 9,
Storing the road surface state in a plurality of stages; And
Setting a light distribution curve for each of the LED light sources corresponding to the road surface state for each step stored in the road surface state storage step;
Further comprising:
The light distribution determination step may include determining a light distribution curve for each of the LED light sources corresponding to the road surface condition determined by the road surface condition determination step based on a light distribution curve set by the light distribution curve setting and storing step Wherein the light distribution control method comprises:

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