CN113932187A - Rotary warning lamp and design method thereof - Google Patents
Rotary warning lamp and design method thereof Download PDFInfo
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- CN113932187A CN113932187A CN202111250666.9A CN202111250666A CN113932187A CN 113932187 A CN113932187 A CN 113932187A CN 202111250666 A CN202111250666 A CN 202111250666A CN 113932187 A CN113932187 A CN 113932187A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims abstract description 94
- 238000004880 explosion Methods 0.000 claims abstract description 9
- 238000004088 simulation Methods 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 8
- 230000004907 flux Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013041 optical simulation Methods 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S10/00—Lighting devices or systems producing a varying lighting effect
- F21S10/06—Lighting devices or systems producing a varying lighting effect flashing, e.g. with rotating reflector or light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S10/00—Lighting devices or systems producing a varying lighting effect
- F21S10/06—Lighting devices or systems producing a varying lighting effect flashing, e.g. with rotating reflector or light source
- F21S10/063—Lighting devices or systems producing a varying lighting effect flashing, e.g. with rotating reflector or light source for providing a rotating light effect
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S10/00—Lighting devices or systems producing a varying lighting effect
- F21S10/06—Lighting devices or systems producing a varying lighting effect flashing, e.g. with rotating reflector or light source
- F21S10/063—Lighting devices or systems producing a varying lighting effect flashing, e.g. with rotating reflector or light source for providing a rotating light effect
- F21S10/066—Lighting devices or systems producing a varying lighting effect flashing, e.g. with rotating reflector or light source for providing a rotating light effect by selectively switching fixed light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Led Device Packages (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A rotary warning lamp comprises a lamp body and a plurality of optical modules arranged around the surface of the lamp body; the design method comprises the following steps: (1) regulation light distribution requirements and flicker pattern analysis; (2) analyzing and selecting the appropriate number of optical modules; (3) calculating the optical parameters of the single optical module; (4) designing lens surface type data of a single optical module; (5) simulating an optical system of a single optical module and analyzing the light intensity distribution, and returning to the step (3) if the light intensity distribution does not meet the requirement; (6) calculating the total energy of the whole optical system; (7) creating simulation analysis of the whole optical system; (8) analyzing the explosion flash mode, and if the explosion flash mode does not meet the requirements, returning to the step (3); (9) and (4) analyzing the rotation mode, and if the rotation mode does not meet the requirement, returning to the step (3). The invention adopts a specific number of optical modules and distribution, selects a specific number of LEDs, and utilizes the free-form surface lens to distribute light, thereby being capable of designing the rotary warning lamp meeting the requirements of ECE related regulations.
Description
Technical Field
The invention relates to a warning lamp, in particular to a rotary warning lamp and a design method thereof.
Background
The explosion flashing mode and the rotating mode of the rotary warning lamp product both need to meet the relevant regulation requirements of ECE, and products on the market at present can not meet the regulation requirements of ECE, for example, the LED rotary warning lamp with the Chinese patent publication No. CN204345401U comprises a base, a face mask and a radiator arranged on the base, wherein the radiator is in a regular octahedral columnar structure, each side surface of the radiator is an installation surface, an LED substrate is arranged on the installation surface, an LED chip is arranged on the LED substrate, and a lens component is arranged in front of the LED chip; the lens assembly consists of three lens groups which are arranged in an upper, middle and lower manner, the lens group is formed by connecting two semi-ellipsoidal lenses in a head-to-tail manner, and the incident surface of the lens group is a plane; the lens group located at the upper portion and the lens group located at the lower portion are both inclined outward. The rotary warning lamp lacks a reasonable design and cannot really meet the requirements of ECE-related regulations.
Disclosure of Invention
The invention aims to provide a rotary warning lamp and a design method thereof, which can meet the requirements of ECE relevant regulations.
In order to solve the technical problems, the technical scheme of the invention is as follows: a rotary warning lamp comprises a lamp body and a plurality of optical modules arranged around the surface of the lamp body; the lamp body comprises an eight-edge cylinder body which is surrounded by eight mounting plates which are uniformly distributed on the circumference; the LED light source module comprises eight optical modules which are arranged in total, wherein the optical modules correspond to the mounting plate one by one, and each optical module comprises an LED light source arranged on the mounting plate and a lens group corresponding to the LED light source; the LED light source comprises a vertically arranged substrate and four LED chips arranged along the length direction of the substrate, the lens group is formed by arranging four free-form surface lenses, the free-form surface lenses correspond to the LED chips one by one, and the light distribution area of each free lens is as follows: the left and right angles are 27.5 degrees +/-2.5 degrees, and the upper and lower angles are 11 degrees +/-2.5 degrees; in the rotating mode, eight optical modules are sequentially and counterclockwise lighted up by turns for 60 ms.
The design method comprises the following steps:
(1) regulation light distribution requirements and flicker pattern analysis;
(2) analyzing and selecting the appropriate number of optical modules;
(3) calculating the optical parameters of the single optical module;
(4) designing lens surface type data of a single optical module;
(5) simulating an optical system of a single optical module and analyzing the light intensity distribution, and returning to the step (3) if the light intensity distribution does not meet the requirement;
(6) calculating the total energy of the whole optical system;
(7) creating simulation analysis of the whole optical system;
(8) analyzing the explosion flash mode, and if the explosion flash mode does not meet the requirements, returning to the step (3);
(9) and (4) analyzing the rotation mode, and if the rotation mode does not meet the requirement, returning to the step (3).
As an improvement, in the step (1), according to the requirement of european regulation E/ECE/324, the defined flashing mode of the warning light requires:
open time Ton: the time between the light intensity value being greater than or equal to 1/10 of the peak light intensity Jm;
off-time Toff: 1/100 where the intensity value is less than the peak intensity Jm and is not greater than the time between 10 cd;
flicker frequency: f is more than or equal to 2.0 and less than or equal to 4.0;
flashing on time: ton is less than or equal to 0.4/f.
As an improvement, in the step (2), the number of optical modules of the optical system is analyzed: eight groups of optical modules are selected, the light-emitting angle of the optical modules is 45 degrees, the number of the optical modules which can be detected is two, f is 2.08Hz, Ton is 120ms, and the Ton is less than or equal to 192ms, so that the requirements are met.
As an improvement, in the step (3), the light distribution area of the free-form surface lens of the optical module is: the left and right angles are 27.5 degrees +/-2.5 degrees, and the upper and lower angles are 11 degrees +/-2.5 degrees; the left and right edge lines of the light intensity graph are clear, and the light intensity graph is uniform and continuous in the horizontal direction.
As an improvement, in the step (4), plano-convex free-form surface lens shape data is generated according to the requirements of the energy distribution and the angle distribution of the light spot by using a mathematical tool or commercial optical design software: light intensity distribution angle in horizontal direction: 27, 12.5, -12.5, 27; light intensity distribution angle in vertical direction: -9.25, -4.25,4.25,9.25.
In the step (5), an optical software is used to create the LED light source, the free-form surface lens and the object field light intensity detector, and an optical simulation system is built to perform simulation.
As an improvement, in the step (6), the total luminous flux of the optical system is calculated by using an annular spherical zone method according to the light distribution requirement of ECE R65 regulation, so as to obtain the luminous flux requirement of a single optical module, thereby setting the number of LED light sources, the luminous flux of LEDs and the requirement of LED driving current of each optical module; the total luminous flux of the optical system of a single optical module is calculated to be 240LM, four LEDs are required for the number of 1.0W packaged LEDs, and the LED driving current is 260 mA.
As an improvement, in the step (7), modeling is performed on the whole optical system on the optical software Ansys spectro, and after correct light source, material and detector parameters are set, a simulated light intensity distribution diagram is simulated.
As an improvement, in the step (8), the determination of the flashing and flickering mode: compared with the ECE regulation requirement, the requirement of flashing of an ECE R65T warning lamp is met; in the step (9), assuming that the rotation mode is eight optical modules, each 480/8 being 60ms, turns on counterclockwise in turn, and analyzing the light emitting angle of each optical module, the effective light intensity value of each test point must meet the light emitting intensity requirement of the ECE R65 rotation mode through testing the light intensities at the 0 ° position and the 22.5 ° position; and (4) if the light distribution requirements of the ECE R65 cannot be simultaneously met in the step (8) or the step (9), repeating the steps (4) to (9) until the design requirements are met.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts a specific number of optical modules and distribution, selects a specific number of LEDs, and utilizes the free-form surface lens to distribute light, thereby being capable of designing the rotary warning lamp meeting the requirements of ECE related regulations.
Drawings
Fig. 1 is a top view of a rotary warning lamp.
Fig. 2 is a side view of the rotary warning lamp.
Fig. 3 is a flow chart of the design of the rotary warning lamp.
Fig. 4 is a free-form surface lens profile data layout.
Fig. 5 is a free-form surface lens spot energy distribution diagram.
FIG. 6 is a horizontal light intensity distribution curve of the free-form surface lens.
Fig. 7 is a vertical light intensity distribution graph of the free-form surface lens.
Fig. 8 is a light distribution diagram of a single optical module.
FIG. 9 is a graph of intensity distribution for a single optical module.
FIG. 10 is a timing diagram showing the sequential lighting of eight optical modules.
FIG. 11 is a graph showing an analysis of the light emission angle of each optical module.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a rotary warning light comprises an aluminum alloy light body and a plurality of optical modules arranged around the surface of the light body. The lamp body comprises an eight-edge cylinder body which is surrounded by eight mounting plates which are uniformly distributed on the circumference; the LED light source module comprises eight optical modules which are arranged in total, wherein the optical modules correspond to the mounting plate one by one, and each optical module comprises an LED light source arranged on the mounting plate and a lens group corresponding to the LED light source; the LED light source comprises a vertically arranged substrate and four LED chips arranged along the length direction of the substrate, the lens group is formed by arranging four free-form surface lenses, the free-form surface lenses correspond to the LED chips one by one, and the light distribution area of each free lens is as follows: the left and right angles are 27.5 degrees +/-2.5 degrees, and the upper and lower angles are 11 degrees +/-2.5 degrees; in the rotating mode, eight optical modules are sequentially and counterclockwise lighted up by turns for 60 ms.
As shown in fig. 3, the design method of the rotary warning light includes the following steps:
(1) regulation light distribution requirements and flicker pattern analysis;
(2) analyzing and selecting the appropriate number of optical modules;
(3) calculating the optical parameters of the single optical module;
(4) designing lens surface type data of a single optical module;
(5) simulating the optical system of a single optical module and analyzing the light intensity distribution, and if the light intensity distribution does not meet the requirements, returning to the step (3)
(6) Calculating the total energy of the whole optical system;
(7) creating simulation analysis of the whole optical system;
(8) analyzing the explosion flash mode, and if the explosion flash mode does not meet the requirements, returning to the step (3);
(9) and (4) analyzing the rotation mode, and if the rotation mode does not meet the requirement, returning to the step (3).
1. In the step (1), according to the requirement of the flashing mode of the warning lamp defined in European regulation E/ECE/324/Rev.1/Add.64/Rev.2-E/ECE/TRANS/505/Rev.1/Add.64/Rev.2-Uniform restrictions on the adapting of specific lighting lamps for power-drive lamps and the fire routers:
open time Ton: the time between the light intensity value being greater than or equal to 1/10 of the peak light intensity Jm;
off-time Toff: 1/100 where the intensity value is less than the peak intensity Jm and is not greater than the time between 10 cd;
flicker frequency: f is more than or equal to 2.0 and less than or equal to 4.0;
flashing on time: ton is less than or equal to 0.4/f.
Defined light distribution region and light distribution intensity distribution diagram:
2. in the step (2), selecting a proper module number of the optical system, and analyzing the legality of the scintillation mode:
3. in the step (3), according to the analysis result in the step (1), the light intensity distribution graph after the optical design is 180 degrees (360 degrees in the horizontal direction) from the left to the right, and is uniformly luminous in the horizontal direction of 8 degrees (16 degrees in the vertical direction) from the top to the bottom, and the vertical direction is as follows: i is8U or 8D LINE/IH LINEA gradual change of light intensity distribution of not less than 0.7. According to the step (2)The selection of a suitable optical system employs an optical system of 8 optical modules, which must satisfy the following characteristics: the left and right edge lines of the light intensity graph are clear; the light intensity diagram must be uniform and continuous in the horizontal direction, and can not have obvious depression, and in combination with the requirements, the light distribution area of the optical lens is as follows: the left-right angle is 27.5 degrees +/-2.5 degrees, and the up-down angle is 11 degrees +/-2.5 degrees, so that a plano-convex lens based on a free-form surface is adopted.
4. As shown in fig. 4, in the step (4), plano-convex free-form surface lens profile data is generated according to the requirements of the energy distribution and the angular distribution of the light spot by using a mathematical tool (Matlab or Mathematica) or commercial optical design software. Light intensity distribution angle in horizontal direction: 27, 12.5, -12.5, 27; light intensity distribution angle in vertical direction: -9.25, -4.25,4.25,9.25.
5. As shown in fig. 5 to 7, in the step (5), an optical software is used to create an LED light source, a free-form surface lens and a target field intensity detector with lucidspray, and an optical simulation system is built to perform simulation, with the following results: the light intensity distribution curve in the horizontal direction, the light intensity value of +/-25 degrees is more than or equal to 0.5x peak light intensity; the light intensity distribution curve in the vertical direction, the light intensity value of +/-8 degrees is more than or equal to 0.7x peak light intensity.
6. In the step (6), the total luminous flux of the optical system is calculated by using an annular spherical zone method according to the light distribution requirement of an ECE R65 rule, so that the luminous flux requirement of a single optical module is obtained, and the LED light source number, the LED luminous flux and the LED driving current requirement of each optical module are set. The total luminous flux of the single-mode optical system is calculated to be 240LM, and for 1.0W 2835 packaged amber LEDs (80LM @350mA) with LENS, the number of the LEDs needs to be 4, and the LED driving current is 260 mA.
7. As shown in fig. 8 and 9, in the step (7), the entire optical system is modeled on the Ansys Speos software, and after the correct light source, material and detector parameters are set, the simulated light intensity distribution diagram is simulated.
8. In the step (8), determining a flashing mode: compared with the ECE regulation requirement, the requirement of the ECE R65T warning lamp for flashing is met.
9. As shown in fig. 10 and 11, in the step (9), assuming that the rotation mode is eight optical modules, each 480/8 is 60ms, and the optical modules are sequentially turned on counterclockwise, and the light emitting angle of each optical module is analyzed, and through the test of the light intensities at the 0 ° position and the 22.5 ° position, the effective light intensity value of each test point must meet the light intensity requirement of the ECE R65 rotation mode.
10. And (4) if the light distribution requirements of the ECE R65 cannot be simultaneously met in the step (8) or the step (9), repeating the steps (4) to (9) until the design requirements are met.
Claims (6)
1. A rotary warning lamp comprises a lamp body and a plurality of optical modules arranged around the surface of the lamp body; the method is characterized in that: the lamp body comprises an eight-edge cylinder body which is surrounded by eight mounting plates which are uniformly distributed on the circumference; the LED light source module comprises eight optical modules which are arranged in total, wherein the optical modules correspond to the mounting plate one by one, and each optical module comprises an LED light source arranged on the mounting plate and a lens group corresponding to the LED light source; the LED light source comprises a vertically arranged substrate and four LED chips arranged along the length direction of the substrate, the lens group is formed by arranging four free-form surface lenses, the free-form surface lenses correspond to the LED chips one by one, and the light distribution area of each free lens is as follows: the left and right angles are 27.5 degrees +/-2.5 degrees, and the upper and lower angles are 11 degrees +/-2.5 degrees; in the rotating mode, eight optical modules are sequentially and counterclockwise lighted up by turns for 60 ms.
2. A method of designing a rotary warning light as claimed in claim 1, comprising the steps of:
(1) regulation light distribution requirements and flicker pattern analysis;
(2) analyzing and selecting the appropriate number of optical modules;
(3) calculating the optical parameters of the single optical module;
(4) designing lens surface type data of a single optical module;
(5) simulating an optical system of a single optical module and analyzing the light intensity distribution, and returning to the step (3) if the light intensity distribution does not meet the requirement;
(6) calculating the total energy of the whole optical system;
(7) creating simulation analysis of the whole optical system;
(8) analyzing the explosion flash mode, and if the explosion flash mode does not meet the requirements, returning to the step (3);
(9) and (4) analyzing the rotation mode, and if the rotation mode does not meet the requirement, returning to the step (3).
3. The design method of a rotary warning lamp according to claim 1, characterized in that: in the step (1), according to the requirement of European regulation E/ECE/324, the defined flashing mode of the warning lamp requires:
open time Ton: the time between the light intensity value being greater than or equal to 1/10 of the peak light intensity Jm;
off-time Toff: 1/100 where the intensity value is less than the peak intensity Jm and is not greater than the time between 10 cd;
flicker frequency: f is more than or equal to 2.0 and less than or equal to 4.0;
flashing on time: ton is less than or equal to 0.4/f.
4. The design method of a rotary warning lamp according to claim 1, characterized in that: in the step (2), analyzing the number of optical modules of the optical system: eight groups of optical modules are selected, the light-emitting angle of the optical modules is 45 degrees, the number of the optical modules which can be detected is two, f is 2.08Hz, Ton is 120ms, and the Ton is less than or equal to 192ms, so that the requirements are met.
5. The design method of a rotary warning lamp according to claim 1, characterized in that: in the step (3), the light distribution area of the free-form surface lens of the optical module is as follows: the left and right angles are 27.5 degrees +/-2.5 degrees, and the upper and lower angles are 11 degrees +/-2.5 degrees; the left and right edge lines of the light intensity graph are clear, and the light intensity graph is uniform and continuous in the horizontal direction.
6. The design method of a rotary warning lamp according to claim 1, characterized in that: in the step (4), generating plano-convex free-form surface lens surface type data according to the light spot energy distribution and angle distribution requirements by using a mathematical tool or commercial optical design software: light intensity distribution angle in horizontal direction: 27, 12.5, -12.5, 27; light intensity distribution angle in vertical direction: -9.25, -4.25,4.25,9.25.
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| CN202111250666.9A CN113932187B (en) | 2021-10-26 | 2021-10-26 | Rotary warning lamp and design method thereof |
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| CN113932187B CN113932187B (en) | 2024-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115523460A (en) * | 2022-11-23 | 2022-12-27 | 泉州市匝道科技有限公司 | Building site that possesses alarm function explodes flashing light |
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| EP3470270A1 (en) * | 2017-10-16 | 2019-04-17 | SMR Patents S.à.r.l. | Logo lamp assembly |
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| CN2637889Y (en) * | 2003-04-08 | 2004-09-01 | 王昌峰 | Rotary alarm lamp |
| CN202048381U (en) * | 2011-04-08 | 2011-11-23 | 王亚军 | Multifunctional mobile lighting device |
| CN103765086A (en) * | 2011-09-01 | 2014-04-30 | 株式会社小糸制作所 | Automotive headlamp apparatus |
| CN203442529U (en) * | 2013-08-13 | 2014-02-19 | 广州市佛达信号设备有限公司 | LED alarm lamp having optical mode of rotating light |
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| EP3470270A1 (en) * | 2017-10-16 | 2019-04-17 | SMR Patents S.à.r.l. | Logo lamp assembly |
| CN111931388A (en) * | 2020-09-27 | 2020-11-13 | 北京中设光环境科技研究院有限公司 | LED street lamp operation analysis system and method based on big data |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115523460A (en) * | 2022-11-23 | 2022-12-27 | 泉州市匝道科技有限公司 | Building site that possesses alarm function explodes flashing light |
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| CN113932187B (en) | 2024-06-04 |
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