CN112287549B - Optimization method of light distribution mode of middle section of curve tunnel - Google Patents

Abstract

The invention discloses an optimization method for a lighting arrangement in the middle section of a curved tunnel, comprising the steps of: S1. determining the blind area of lighting in the lighting arrangement; S2. determining the lighting spacing of the lighting arrangement; S3. judging the lighting arrangement Whether the lamp spacing meets the tunnel lighting design requirements, if so, take the lighting method with the largest lighting spacing or the smallest lighting blind area as the optimal lighting method; if not, take the lighting layout without the lighting blind area as the optimal lighting method Lighting method. The method for optimizing the lighting arrangement in the middle section of the curved tunnel of the present invention can effectively and reliably select the optimal lighting arrangement, reduces the cost of manual calculation and improves the efficiency of screening the lighting arrangement.

Description

Optimization method of lighting layout in the middle section of curved tunnel

technical field

The invention relates to the field of tunnel lighting, in particular to an optimization method for a lighting arrangement in a middle section of a curved tunnel.

Background technique

Although my country's traffic industry standard "Highway Tunnel Lighting Design Rules" (JTG/T D702-01-2014) provides corresponding regulations for tunnel lighting design, it does not involve the way of lighting, the spacing of lamps, the radius of curvature of tunnels and the blind spots of light. Relationship. Moreover, the achievements of tunnel lighting at this stage are to study the way of road tunnel lighting and the influence of lighting specifications on lighting, but there is little research on curved tunnel lighting, especially the lack of research on the lighting layout of curved tunnels.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide an optimization method for the lighting arrangement in the middle section of the curved tunnel, which can effectively and reliably select the optimal lighting arrangement, reduce the cost of manual measurement and improve the It improves the efficiency of screening the way of lighting.

The optimization method of the light distribution mode in the middle section of the curved tunnel of the present invention includes the following steps:

S1. Determine the lighting blind area of the lighting method;

S2. Determine the lighting spacing of the lighting method;

S3. Determine whether the lighting spacing meets the tunnel lighting design requirements. If so, take the lighting layout with the largest lighting spacing or the smallest lighting blind area as the optimal lighting layout; if not, there will be no lighting blind area. The lighting method is the optimal lighting method.

Further, the step S1 specifically includes:

If the lighting method is to lay the lights on the inside of the curve of the curved tunnel, the lighting blind area of the lights on the inside of the curve of the curved tunnel is _Sblind1 :

Among them, S ₁ is the lighting spacing of the lights inside the curve of the curved tunnel; R is the radius of curvature of the curved tunnel; w is the width of the curved tunnel;

If the lighting method is to arrange the lights outside the curve of the curved tunnel, the lighting blind area of the lights on the outside of the curve of the curved tunnel is _Sblind2 :

Among them, S ₂ is the lighting spacing of the lights outside the curve of the curved tunnel; R is the radius of curvature of the curved tunnel; w is the width of the curved tunnel;

If the light distribution method is the symmetrical light distribution on both sides of the curved tunnel curve, the lighting blind spot area S _blind3 of the symmetrical light distribution on the two sides of the curved tunnel curve is:

Among them, S ₃ is the lighting spacing of symmetrical lighting on both sides of the curved tunnel curve; R is the curvature radius of the curved tunnel; w is the width of the curved tunnel;

If the light distribution method is the staggered light distribution on both sides of the curved tunnel curve, the lighting blind area of the curved tunnel curve with the staggered lights on both sides is _Sblind4 :

Wherein, S ₄ is the lighting spacing of the staggered lighting on both sides of the curved tunnel; L is the distance between the two lamps of the staggered lighting; α is the angle between L ₁ and L ₂ , and L ₁ is the staggered lighting The connection line between the two lamps of the lamp layout, the L ₂ is the connection between the lamp outside the curve of the curved tunnel and the center of curvature of the curved tunnel; R is the radius of curvature of the curved tunnel; w is the The width of the curved tunnel.

Further, the step S2 specifically includes:

If the lighting method is to arrange lights on the inside of the curve of the curved tunnel, the lighting spacing S ₁ of the lights on the inside of the curve of the curved tunnel is determined according to the following formula:

Among them, L is the standard body length; R is the curvature radius of the curved tunnel; w is the width of the curved tunnel;

If the light distribution method is the light distribution outside the curve of the curved tunnel, the lighting spacing S ₂ of the light distribution outside the curve of the curved tunnel is determined according to the following formula:

Among them, L is the length of the standard vehicle body; W is the width of the standard vehicle body; R is the curvature radius of the curved tunnel; w is the width of the curved tunnel;

If the lighting method is the symmetrical lighting on both sides of the curved tunnel curve, the lighting spacing S ₃ of the symmetrical lighting on both sides of the curved tunnel curve is determined according to the following formula:

Among them, R is the curvature radius of the curved tunnel; w is the width of the curved tunnel;

If the lighting method is to arrange lights staggered on both sides of a curved tunnel curve, the lighting spacing S ₄ of the staggered lighting on both sides of the curved tunnel curve is determined according to the following formula:

Among them, L is the length of the standard vehicle body; R is the curvature radius of the curved tunnel; w is the width of the curved tunnel; α is the angle between the staggered lights.

Further, in step S3, the tunnel lighting design requirements are: v/S<Z ₁ or v/S>Z ₂ ; wherein, v is the tunnel lighting design speed; S is the lighting spacing of the tunnel lighting layout; Z ₁ and Z ₂ are the flickering frequencies of the lighting fixtures.

The beneficial effects of the present invention are as follows: the present invention discloses an optimization method for the lighting arrangement in the middle section of a curved tunnel, by determining the lighting blind area area of the lighting arrangement, and obtaining the lighting spacing of the lighting arrangement, so as to determine the Whether the lighting spacing is required for tunnel lighting design, and then the optimal lighting method that meets the requirements can be obtained. The invention can effectively and reliably screen out the optimal lighting layout, reduce the cost of manual calculation and improve the efficiency of screening lighting layout methods. .

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the present invention is further described:

Fig. 1 is the method structure schematic diagram of the present invention;

Fig. 2 is the analysis diagram of the light distribution method inside the curve of the curved tunnel according to the present invention;

Fig. 3 is the analysis diagram of the light distribution method outside the curved tunnel curve of the present invention;

Fig. 4 is the analysis diagram of the two-side symmetrical light distribution mode of the curved tunnel curve of the present invention;

FIG. 5 is an analysis diagram of the method of staggering lights on both sides of a curved tunnel curve according to the present invention.

Detailed ways

The present invention is further described below in conjunction with the accompanying drawings of the description, as shown in the figure:

The optimization method of the light distribution method in the middle section of the curved tunnel of the present invention, as shown in FIG. 1 , includes the following steps:

S1. Determine the lighting blind area of the lighting method;

S2. Determine the lighting spacing of the lighting method;

S3. Determine whether the lighting spacing meets the tunnel lighting design requirements. If so, take the lighting layout with the largest lighting spacing or the smallest lighting blind area as the optimal lighting layout; if not, there will be no lighting blind area. The lighting method is the optimal lighting method.

In this embodiment, in step S1, the area of the lighting blind spot in the lighting arrangement is determined, which specifically includes:

If the lighting method is to arrange the lights inside the curve of the curved tunnel, as shown in Figure 2, B ₁ and B ₂ represent the installation positions of the lamps, and O is the curvature center corresponding to the curved tunnel; the extension lines of OB ₁ and OB ₂ are respectively the center line of the curved tunnel. The intersection points are B ₁ ', B ₂ ', and the arc length formed by B ₁ ' and B ₂ ' represents the distance between lamps and lanterns S ₁ . The illumination area of the lamp at B ₁ is the chord area formed by B ₁₁ and B ₁₂ , where B ₁₁ and B ₁₂ are the tangent of the curve inside the curved tunnel curve with B ₁ as the tangent point and the curve outside the curved tunnel curve. _Two intersection points; the lighting area of the lamps at B2 is the area of the chord domain formed by _B21 and _B22 , wherein point _B21 and point _B22 are the tangent line of the curve inside the curve of the curved tunnel with _B2 as the tangent point and The two intersection points of the curve outside the curve of the curved tunnel; the area formed by B ₁ , C and B ₂ is the lighting blind area of the two lamps, wherein C is the intersection of the tangent line passing through point B ₁ and the tangent line passing through point B ₂ point; the lighting blind spot area S _{blind 1} formed by the lighting blind spot is:

Wherein, S ₁ is the arc length formed by B ₁ ' and B ₂ '; R is the curvature radius of the curved tunnel; w is the width of the curved tunnel;

If the lighting method is to arrange the lights outside the curve of the curved tunnel, as shown in Figure ₃ , A ₁ and A ₂ represent the installation positions of the lamps, O is the curvature center corresponding to the curved tunnel _; For A' ₁ and A' ₂ , the arc length formed by A' ₁ and A' ₂ represents the distance between lamps and lanterns S ₂ . The illuminating area _of the lamp at A1 is the arc area formed by _A11 and _A12 , wherein _A11 and A12 are the tangent points _{of two} tangents made through A1 to the inner side _of the curved tunnel curve; A2 The irradiated area of the lamps at 1 is the arc area formed by A ₂₁ and A ₂₂ , wherein A ₂₁ and A ₂₂ are respectively the tangent points of the two tangent lines made through A ₂ to the inner side of the curved tunnel curve; A ₁ , B The areas formed by , A ₂ are two lighting blind areas, where B is the intersection of A ₁ A ₁₂ and A ₂ A ₂₁ . Then the lighting blind area S _{blind 2} of the lights outside the curve of the curved tunnel is:

Among them, S ₂ is the arc length formed by A' ₁ and A'₂; R is the curvature radius of the curved tunnel; w is the width of the curved tunnel;

If the lighting method is symmetrical on both sides of the curved tunnel, as shown in Figure 4, the lamps at C ₁ and D ₁ are symmetrical along the center line of the curved tunnel, and the lamps at C ₂ and D ₂ are along the curve The centerline of the tunnel is symmetrical, wherein C ₁ and C ₂ are located outside the curve of the curved tunnel, and D ₁ and D ₂ are located inside the curve of the curved tunnel; O is the center of curvature corresponding to the curved tunnel; the extension lines of OD ₁ and OD ₂ are the same as the curved tunnel. The intersection points of the center lines are D' ₁ and D' ₂ respectively. The arc length formed by D' ₁ and D' ₂ represents the distance S ₃ between the lamps at D ₁ and D ₂ , and S ₃ is also the distance between the lamps at C ₁ and C ₂ . spacing. The illumination area _of the lamp at _C1 is the arc area formed by _C11 and C12, wherein _C11 and C12 are the tangent points _of two tangents made through _C1 to the inner side of the curved tunnel curve; _C2 The illumination area of the lamps is the arc area formed by C ₂₁ and C ₂₂ , where C ₂₁ and C ₂₂ are the tangent points of the two tangents made by the curve through C ₂ to the inside of the curved tunnel curve; the lamps at D ₁ illuminate The area is the area of the chord domain formed by D ₁₁ and D ₁₂ , wherein D ₁₁ and D ₁₂ are the intersection points of the tangent of the inner curve of the curved tunnel curve with D ₁ as the tangent point and the outer curve of the curved tunnel curve; D ₂ The irradiated area of the lamp is the chord area formed by D ₂₁ and D ₂₂ , wherein D ₂₁ and D ₂₂ are respectively the intersection of the tangent line of the inner curve of the curved tunnel curve with D ₂ as the tangent point and the outer curve of the curved tunnel curve The area enclosed by A, B, C, and D is the lighting blind spot, where A is the intersection of C ₁ D ₂ and D ₁₁ D ₁₂ , B is the intersection of D ₁₁ D ₁₂ and D ₂₁ D ₂₂ , C is the intersection of D ₂₁ D ₂₂ and C ₂ D ₁ , and D is the intersection of C ₁ D ₂ and C ₂ D ₁ . Then the lighting blind area S _{blind 3} of the symmetrically arranged lights on both sides of the curved tunnel curve is:

Among them, S ₃ is the arc length formed by D' ₁ and D'₂; R is the curvature radius of the curved tunnel; w is the width of the curved tunnel;

If the lighting method is to stagger the lights on both sides of the curved tunnel and bend, as shown in Figure 5, the lamps at E ₁ and the lamps at F ₁ are staggered, and the lamps at E ₂ and the lamps at F ₂ are staggered, where E ₁ , E ₂ is located outside the curve of the curved tunnel, F ₁ and F ₂ are located inside the curve of the curved tunnel, the arc length formed by E ₁ and E ₂ is equal to the arc length formed by F ₁ and F ₂ ; O is the curvature center corresponding to the curved tunnel ; the intersection points of OE ₁ , OE ₂ and the center line of the curved tunnel are E′ ₁ , E′ ₂ respectively, the arc length formed by E′ ₁ and E′ ₂ represents the distance between the lamps at E ₁ and E ₂ ; OF ₁ , OF ₂ The intersection of the extension line and the center line of the curved tunnel are F′ ₁ and F′ ₂ , and the arc length formed by F′ ₁ and F′ ₂ represents the distance between the lamps at F ₁ and F ₂ ; among them, the lamps at E ₁ and E ₂ The spacing of , and the spacing of the lamps at F ₁ and F ₂ can be converted into each other through geometric relations. The illuminating area _of the lamp at E1 is the arc area formed by _E11 and _E12 , wherein _E11 and E12 are the tangent points of two tangents made through E1 to the inner side _of the curved tunnel curve respectively _{; E2} The irradiated area of the lamp at is the arc area formed by E ₂₁ and E ₂₂ , wherein E ₂₁ and E ₂₂ are the tangent points of the two tangents made through E ₂ to the inner side of the curved tunnel curve _; The illumination area of the lamp is the area of the chord domain formed by F ₁₁ and F ₁₂ , where F ₁₁ and F ₁₂ are respectively the intersection of the tangent of the inner curve of the curved tunnel curve with F ₁ as the tangent point and the outer curve of the curved tunnel curve. The illumination area of the lamps at F ₂ is the chord area area formed by F ₂₁ and F ₂₂ , wherein F ₂₁ and F ₂₂ are respectively the tangent of the inner curve of the curved tunnel curve with F ₂ as the tangent point and the curved tunnel curve The intersection of the outer curves; the area enclosed by A, B, C, and D is the lighting blind spot, where A is the intersection of F ₁₁ F ₁₂ and F ₂₁ F ₂₂ , and B is F ₁₁ F ₁₂ and E ₁ F ₂ The intersection of , C is the intersection of E ₁ F ₂ and E ₂ F ₁ , and D is the intersection of E ₂ F ₁ and F ₂₁ F ₂₂ . Then the lighting blind area S _{blind 4} of the staggered lights on both sides of the curved tunnel curve is:

Among them, S ₄ is the arc length formed by F' ₁ and F'₂; L _d is the distance between E ₁ and F ₁ ; α is the included angle between L ₁ and L ₂ , and L ₁ is the staggered arrangement of lamps. The connecting line between E ₁ and F ₁ where the two lamps are located, the L ₂ is the connecting line between E ₁ where the lamp outside the curve of the curved tunnel is located and the curvature center O of the curved tunnel; R is the Radius of curvature; w is the width of the curved tunnel.

In this embodiment, the step S2 specifically includes:

If the lighting method is to lay the lights on the inside of the curve of the curved tunnel, in the presence of the blind area of the lighting, the lighting spacing S ₁ of the lights on the inside of the curve of the curved tunnel is determined according to the following formula:

Among them, L is the standard body length; R is the curvature radius of the curved tunnel; w is the width of the curved tunnel;

If the lighting method is to lay the lights on the outside of the curve of the curved tunnel, in the case of the blind area of the lighting, the lighting spacing S ₂ of the lighting on the outside of the curve of the curved tunnel is determined according to the following formula:

Among them, L is the length of the standard body; W is the width of the standard body; R is the radius of curvature of the curved tunnel; w is the width of the curved tunnel;

If the light distribution method is the symmetrical light distribution on both sides of the curved tunnel curve, in the presence of the blind area of the lighting, the lighting spacing S ₃ of the symmetrical light distribution on both sides of the curved tunnel curve is determined according to the following formula:

Among them, R is the curvature radius of the curved tunnel; w is the width of the curved tunnel;

If the light distribution method is the staggered arrangement of lights on both sides of the curved tunnel curve, in the presence of the blind area of the lighting, the light distribution spacing S ₄ of the staggered lights on both sides of the curved tunnel curve is determined according to the following formula:

Among them, L is the length of the standard vehicle body; R is the curvature radius of the curved tunnel; w is the width of the curved tunnel; α is the angle between the staggered lights.

In this embodiment, in step S3, the tunnel lighting design requirements are: v/S<Z ₁ or v/S>Z ₂ ; where v is the tunnel lighting design speed; S is the lighting spacing of the tunnel lighting layout ; Z ₁ and Z ₂ are the flickering frequencies of lighting fixtures. The middle section of the curved tunnel can be illuminated by different types of lamps, the types of lighting lamps used in the curved tunnel are different, and the values of the flickering frequencies Z ₁ and Z ₂ are also different. Taking LED lighting as an example, the Z ₁ is 2.5 Hz, and the Z ₂ is 15 Hz; in the case of using LED lighting for lighting, the lighting spacing range under different design speeds can be obtained, as shown in Table 1:

Table 1

For the lighting inside the curve of the curved tunnel: when the lighting blind area S _{blind 1} exists, that is, when the S _{blind 1} > 0, and the standard vehicle length L is determined, the larger the curvature radius R of the curved tunnel, the greater the S The larger the ₁ , the larger the standard vehicle length L is when the curvature radius R of the curved tunnel is determined, and the larger the S ₁ ; and the S ₁ all meet the tunnel lighting design requirements.

For the lighting outside the curve of the tunnel curve: when the lighting blind area S _{blind 2} exists, that is, when S _{blind 2} > 0, under the condition that the standard body length L and the standard body width W are determined, S ₂ follows the curve. The radius of curvature R of the tunnel increases; when the radius of curvature R of the curved tunnel is determined with the length L of the standard body, S2 decreases with the increase of the width W of the standard body _; the curvature of the curved tunnel When the radius R and the standard body width W are determined, S ₂ increases with the increase of the standard body length L; and S ₂ all meet the design requirements of tunnel lighting.

Compared with the lighting arrangement on the inside of the curve of the curved tunnel, in terms of the distance between the lights, S ₁ >S ₂ , then from the perspective of cost saving, the inside of the curve of the curved tunnel is laid out. Compared with the lighting blind area of the curved tunnel and the outside of the curved tunnel, the lighting is the optimal lighting method. If there is S _{blind 1} < S _{blind 2} , it is considered from the aspect of driving safety. , and take the light distribution inside the curved tunnel curve as the optimal light distribution method.

For the symmetrical lighting on both sides of the curved tunnel curve: when the _blind area of lighting Sb33 exists, that is, when _Sblind3 > 0, the curvature radius of the curved tunnel is _R <1000m, and the calculated lighting spacing S3 >152.19m; however, S ₃ >152.19m obviously does not meet the tunnel lighting design requirements, that is to say, there is no lighting blind spot area for the symmetrical arrangement of lights on both sides of the curved tunnel curve; considering the driving safety, the curve Symmetrical lighting on both sides of tunnel bends is used as the optimal lighting method.

For the staggered arrangement of lights on both sides of the curve of the curved tunnel: when the lighting blind area S _{blind 4} exists, that is, when S _{blind 4} > 0, the curvature radius of the curved tunnel is R < 1000m, and the calculated lighting spacing S ₄ >162.08m; however, S ₄ >162.08m obviously does not meet the tunnel lighting design requirements, that is to say, there is no lighting blind spot area for the staggered lights on both sides of the curved tunnel curve; considering the driving safety, the curve The staggered lighting on both sides of the tunnel curve is the optimal lighting method.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims (3)

1. The optimization method of the light distribution mode of the middle section of the curved tunnel is characterized by comprising the following steps of: the method comprises the following steps:

s1, determining the area of a lighting blind area in a light distribution mode;

the step S1 specifically includes:

if the lamp arrangement mode is the lamp arrangement on the inner side of the curve tunnel curve, the lighting blind area S of the lamp arrangement on the inner side of the curve tunnel curve _{Blind 1} ：

Wherein S is ₁ Arranging the light distance of the light on the inner side of the curve of the curved tunnel; r is the curvature radius of the curve tunnel; w is the width of the curved tunnel;

if the lamp arrangement mode is the lamp arrangement on the outer side of the curve tunnel curve, the lighting blind area S of the lamp arrangement on the outer side of the curve tunnel curve _{Blind 2} ：

Wherein S is ₂ The lamp arrangement distance is the lamp arrangement distance of the lamps on the outer side of the curve of the curved tunnel; r is the curvature radius of the curve tunnel; w is the width of the curved tunnel;

if the lamp arrangement mode is bilateral symmetry lamp arrangement of curve tunnel bend, then the illumination blind area S of bilateral symmetry lamp arrangement of curve tunnel bend _{Blind person 3} ：

Wherein S is ₃ The lamp arrangement distance is the symmetrical lamp arrangement distance at the two sides of the curve tunnel bend; r is the curvature radius of the curve tunnel; w is the width of the curved tunnel;

if the lamp arrangement mode is the bilateral staggered lamp arrangement of the curve tunnel curve, the lighting blind area S of the bilateral staggered lamp arrangement of the curve tunnel curve _{Blind 4} ：

Wherein S is ₄ The lamp arrangement distance is the lamp arrangement distance of staggered lamp arrangement at two sides of a curve tunnel bend; l is the distance between two lamps in staggered arrangement; alpha is L ₁ And L ₂ The angle of,said L ₁ A connecting line between two lamps in staggered arrangement, L ₂ The lamp is a connecting line between the position of the lamp on the outer side of the curve tunnel and the curvature center of the curve tunnel; r is the curvature radius of the curve tunnel; w is the width of the curved tunnel;

s2, determining the lamp arrangement distance of the lamp arrangement mode;

s3, judging whether the lamp arrangement distance meets the design requirement of tunnel illumination, and if so, taking the lamp arrangement mode with the maximum lamp arrangement distance or the minimum illumination blind area as an optimal lamp arrangement mode; if not, the light distribution mode without the area of the lighting blind area is used as the optimal light distribution mode.

2. The optimization method for the middle section lamp arrangement mode of the curved tunnel according to claim 1, characterized in that: the step S2 specifically includes:

if the lamp arrangement mode is the lamp arrangement on the inner side of the curve tunnel curve, determining the lamp arrangement distance S of the lamp arrangement on the inner side of the curve tunnel curve according to the following formula ₁ ：

Wherein L is the standard vehicle body length; r is the curvature radius of the curve tunnel; w is the width of the curved tunnel;

if the lamp arrangement mode is the lamp arrangement on the outer side of the curve tunnel curve, determining the lamp arrangement distance S of the lamp arrangement on the outer side of the curve tunnel curve according to the following formula ₂ ：

Wherein L is the standard automobile body length; w is the width of a standard vehicle body; r is the curvature radius of the curve tunnel; w is the width of the curved tunnel;

if the lamp arrangement mode is bilateral symmetry lamp arrangement of the curve tunnel curve, the bilateral symmetry lamp arrangement of the curve tunnel curve is determined according to the following formulaSpace S between lamps ₃ ：

Wherein R is the curvature radius of the curve tunnel; w is the width of the curved tunnel;

if the lamp arrangement mode is bilateral staggered lamp arrangement of the curve tunnel curve, the lamp arrangement space S of bilateral staggered lamp arrangement of the curve tunnel curve is determined according to the following formula ₄ ：

Wherein L is the standard automobile body length; r is the curvature radius of the curve tunnel; w is the width of the curved tunnel; alpha is a staggered lamp arrangement included angle.

3. The optimization method for the middle section lamp arrangement mode of the curved tunnel according to claim 1, characterized in that: in step S3, the tunnel lighting design requirement is: v/S<Z ₁ Or v/S>Z ₂ (ii) a Wherein v is the tunnel lighting design speed; s is a lamp arrangement distance of a tunnel lamp arrangement mode; z ₁ And Z ₂ All are the flicker frequencies of the lighting fixtures.

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