CN109194395B - LED communication bandwidth testing arrangement - Google Patents
LED communication bandwidth testing arrangement Download PDFInfo
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- CN109194395B CN109194395B CN201811173391.1A CN201811173391A CN109194395B CN 109194395 B CN109194395 B CN 109194395B CN 201811173391 A CN201811173391 A CN 201811173391A CN 109194395 B CN109194395 B CN 109194395B
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- main body
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- communication bandwidth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The invention discloses an LED communication bandwidth testing device, which comprises a main body, a testing device and a testing device, wherein the main body is cylindrical; the lens assembly is arranged in the main body and used for focusing light; the emitting end panel is circular and arranged at one end of the main body; a receiving end panel, which is circular in shape and is arranged at the other end of the main body; the bracket is arranged below the main body, is screwed on the main body and is used for supporting; the base is arranged below the support and is connected to the support in a screwing mode to support and fix the whole main body. The LED communication bandwidth testing device can measure the bandwidth parameters of most of the existing LED lamp beads on the market in a variable angle mode, can be used together with other equipment in an optical communication system, and has good compatibility and use convenience. By utilizing the device, the LED communication bandwidth test experiment without interference of external light can be easily realized.
Description
Technical Field
The invention belongs to the technical field of visible light communication, and particularly relates to an LED communication bandwidth testing device.
Background
The LED is called as a green light source, has the characteristics of energy conservation, environmental protection, long service life, small volume and the like, and can be widely applied to the fields of various displays, decorations, backlight sources, common illumination, urban night scenes and the like. In recent years, some economically developed countries in the world have developed intense technological competition around the development of LEDs. For many years, the advantages of energy conservation and environmental protection of LED lighting are paid attention by the nation and governments at all levels, and relevant policies and measures are taken out from various places to accelerate the development of LED lamps, so that the development of LEDs is well paved for promoting the further generalization of LEDs. Meanwhile, the application of LED has become a trend in the field of communication, such as: the visible light communication technology sought after in asia, europe and america. The visible light communication technology utilizes the LED light source to realize the communication function at the same time, has the advantages of high transmission data rate, high confidentiality, license-free wide spectrum, environmental protection and no interference of radio frequency signals, is one of ideal indoor and outdoor high-speed wireless access modes, and is widely applied to special occasions such as hospitals, factories, mines, airplanes and the like. In a word, the development of the LED visible light communication technology in the future communication field will have no limitable amount, and will push the development of the information-based society. The visible light communication system comprises a sending end and a receiving end, wherein the sending end comprises a driving and signal sending module and an LED light source, and the receiving end comprises a photoelectric detector and a photoelectric conversion and acquisition module. Visible light communication is the hottest wireless communication technology at present, and is rapidly developed from short and short decades of birth to the present, and the realization process of the technology covers LED photoelectric characteristics, visible light modulation technology, circuit system construction and the like. Most of the research on visible light communication directions related to enterprises or schools focuses on communication channels, modulation and demodulation methods and the like, few researches on the performance of LED light sources in a visible light communication system exist, and more rarely, information related to specific devices for LED communication bandwidth testing is provided. However, in the visible light communication system, the influence of the photoelectric characteristics of the LED light source itself on the communication rate is extremely significant. Based on this situation, a device capable of accurately measuring bandwidth parameters of LEDs in an optical communication system is of great importance.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the LED communication bandwidth testing device which can measure the bandwidth parameters of most of the existing LED lamp beads on the market at variable angles, can be used together with other equipment in an optical communication system, and has good compatibility and use convenience.
In order to achieve the purpose, the invention adopts the following technical scheme:
an LED communication bandwidth testing device, comprising:
the main body 1 is cylindrical, made of plastic or aluminum alloy, and provided with a slide rail on the inner surface;
the lens assembly 11 is arranged inside the main body 1, is a convex lens or a concave lens combination and is used for focusing light;
the transmitting end panel 2 is round in shape and made of black opaque material, is arranged at one end of the main body 1, is screwed on the main body 1 and is used for placing transmitting components;
the emission hole group 21 is arranged on the emission end panel 2, is a series of round holes with consistent shapes and sizes, and is used for testing the LED communication bandwidth in a variable angle mode;
the emission hole baffle 22 is arranged on the emission end panel 2, is a series of circular light-tight plates with the same shape and size and is used for shielding light;
the receiving end panel 3 is round in shape and made of black opaque material, is arranged at the other end of the main body 1, is screwed on the main body 1 and is used for placing receiving components;
the receiving hole group 31 is arranged on the receiving end panel 3, is a series of round holes with consistent shapes and sizes, and is used for testing the LED communication bandwidth in a variable angle mode;
a receiving hole baffle 32, which is arranged on the receiving end panel 3 and is a series of round opaque plates with consistent shape and size for blocking light;
the bracket 4 is arranged below the main body 1, is screwed on the main body 1 and is used for supporting functions;
and the base 5 is arranged below the support 4, is screwed on the support 4 and is used for supporting and fixing the whole main body 1.
According to the technical scheme, the LED communication bandwidth testing device has the following beneficial effects:
(1) the device is suitable for testing the communication bandwidth of most of the existing LED lamp beads on the market;
(2) the device can test the bandwidth parameters of the LED lamp beads at variable angles, and is suitable for various contrast test experiments;
(3) in the actual operation process, the device has convenience in installation and disassembly and easy operability;
(4) the device can be matched with electronic components in a visible light communication system to carry out a series of LED communication performance tests.
Drawings
Fig. 1 is a schematic structural diagram of an LED communication bandwidth testing apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an emitting end and a receiving end in an LED communication bandwidth testing apparatus according to an embodiment of the present invention.
In the figure: 1-a body; 11-a lens assembly; 2-emitting end panels; 21-a set of transmit holes; 22-a launch aperture baffle; 3-receiving end panels; 31-receiving a group of holes; 32-receiving aperture plate; 4-a scaffold; 5-a base;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. It should be noted that in the drawings or description, the same drawing reference numerals are used for similar or identical parts. Implementations not depicted or described in the drawings are of a form known to those of ordinary skill in the art. Additionally, while exemplifications of parameters including particular values may be provided herein, it is to be understood that the parameters need not be exactly equal to the respective values, but may be approximated to the respective values within acceptable error margins or design constraints. Directional phrases used in the embodiments, such as "upper," "lower," "front," "rear," "left," "right," and the like, refer only to the orientation of the figure. Accordingly, the directional terminology used is intended to be in the nature of words of description rather than of limitation.
The LED communication bandwidth testing device can measure the bandwidth parameters of most of the existing LED lamp beads on the market in a variable angle mode, can be used together with other equipment in an optical communication system, and has good compatibility and use convenience.
In an embodiment of the invention, an LED communication bandwidth testing device is provided. Referring to fig. 1 and 2, the apparatus includes: the inner surface of the main body 1 is provided with a slide rail; a lens unit 11 provided inside the main body 1; the transmitting end panel 2 is arranged at one end of the main body 1 and is screwed on the main body 1; the transmitting hole group 21 is arranged on the transmitting end panel 2 and is a series of round holes with the same shape and size; an emission hole baffle 22 provided on the emission end panel 2; the receiving end panel 3 is circular, is arranged at the other end of the main body 1 and is screwed on the main body 1; a receiving hole group 31 provided on the receiving end panel 3; a receiving hole shutter 32 provided on the receiving end panel 3; a bracket 4 provided below the main body 1; and the base 5 is arranged below the bracket 4.
The following describes each component of the LED communication bandwidth testing apparatus of the present embodiment in detail.
The main body 1 is cylindrical, made of plastic or aluminum alloy, and provided with a slide rail on the inner surface for adjusting the distance of the lens assembly 11 in a left-right sliding manner; the main body 1 is made of opaque material to prevent the internal light from leaking and the external interference light from entering.
The lens assembly 11 is arranged inside the main body 1, is a convex lens or a concave lens combination and is used for focusing light; the lens assembly 11 can slide in the main body 1 to adjust the light converging effect.
The transmitting end panel 2 is round in shape and made of black opaque material, is arranged at one end of the main body 1, is screwed on the main body 1 and is used for placing transmitting components; emission end panel 2 is applicable to general LED lamp pearl anchor clamps on the market, and it also can be for square or oval etc. can make the adjustment according to actual need.
The emission hole group 21 is arranged on the emission end panel 2, is a series of round holes with consistent shapes and sizes, and is used for testing the LED communication bandwidth in a variable angle mode; the size of the set of firing holes 21 can be adjusted according to actual needs.
The emission hole baffle 22 is arranged on the emission end panel 2, is a series of circular light-tight plates with the same shape and size and is used for shielding light; the size of the emitting hole baffle 22 is slightly larger than that of the emitting hole group 21, and the emitting hole baffle is used as an upper cover of the emitting hole group 21, so that the emitting hole baffle without an emitting element is covered while an experiment is carried out, and internal light can be prevented from leaking or external light can be prevented from entering.
The receiving end panel 3 is round in shape and made of black opaque material, is arranged at the other end of the main body 1, is screwed on the main body 1 and is used for placing receiving components; the receiving end panel 3 is suitable for a general photoelectric detector clamp in the market, can also be square or oval and the like, and can be adjusted according to actual needs.
The receiving hole group 31 is arranged on the receiving end panel 3, is a series of round holes with consistent shapes and sizes, and is used for testing the LED communication bandwidth in a variable angle mode; the size of the receiving hole group 31 can be adjusted according to actual needs.
A receiving hole baffle 32, which is arranged on the receiving end panel 3 and is a series of round opaque plates with consistent shape and size for blocking light; the size of the receiving hole shutter 32 is slightly larger than that of the receiving hole group 31, and as an upper cover of the receiving hole group 31, it is possible to prevent the inside light from leaking out or the outside light from entering by covering the receiving hole shutter where no receiving element is placed while performing an experiment.
The bracket 4 is arranged below the main body 1, is screwed on the main body 1 and is used for supporting functions;
and the base 5 is arranged below the support 4, is screwed on the support 4 and is used for supporting and fixing the whole main body 1.
In the embodiment, the positions of the emitting elements and the positions of the receiving elements in the emitting hole groups and the receiving hole groups are changed, so that most of LED lamp beads in the packaging form in the market can be subjected to communication bandwidth tests at different angles, and meanwhile, the positions and the number of the lens assemblies are adjusted, so that various comparison test experiments can be realized.
So far, the embodiments of the present invention have been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should clearly recognize that the present invention is applied to the LED communication bandwidth testing apparatus.
Furthermore, the above definitions of the various elements and methods are not limited to the particular structures, shapes or arrangements of parts mentioned in the embodiments, which may be readily substituted by those of ordinary skill in the art, such as:
(1) the main body can be replaced by various materials and shapes;
(2) the transmitting end panel and the receiving end panel can adopt various shapes and materials;
(3) the holder may be replaced with an existing optical holder.
In summary, the LED communication bandwidth testing apparatus of the present invention can measure the bandwidth parameters of most of the existing LED lamp beads on the market at variable angles, and can be used together with other devices in an optical communication system, so that the LED communication bandwidth testing apparatus has good compatibility and convenience in use. By utilizing the device, the LED communication bandwidth test experiment without interference of external light can be easily realized.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. An LED communication bandwidth testing device, comprising:
a body having a cylindrical shape; the main body is made of plastic or aluminum alloy, and the inner surface of the main body is provided with a slide rail;
a lens assembly disposed inside the body; the lens assembly is arranged on the slide rail and slides left and right to change the distance; the lens component is a convex lens or a concave lens combination;
the emitting end panel is circular and is arranged at one end of the main body; the transmitting end panel is screwed with one end of the main body; the emission end panel is provided with an emission hole group for testing the LED communication bandwidth in a variable angle mode and an emission hole baffle for shielding light; the emitting hole group is a series of round holes with the same shape and size; the transmitting hole baffle is a series of round light-tight plates with the same shape and size;
the receiving end panel is circular and is arranged at the other end of the main body; the receiving end panel is screwed at one end of the main body; the receiving end panel is provided with a receiving hole group for testing the LED communication bandwidth in a variable angle mode and a receiving hole baffle for shielding light; the receiving hole group is a series of round holes with the same shape and size; the receiving hole baffle is a series of round opaque plates with the same shape and size;
the bracket is arranged below the main body and is screwed on the main body;
the base is arranged below the support and is connected to the support in a screwing mode to support and fix the whole main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173391.1A CN109194395B (en) | 2018-10-09 | 2018-10-09 | LED communication bandwidth testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173391.1A CN109194395B (en) | 2018-10-09 | 2018-10-09 | LED communication bandwidth testing arrangement |
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| CN109194395A CN109194395A (en) | 2019-01-11 |
| CN109194395B true CN109194395B (en) | 2021-11-26 |
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| KR101887973B1 (en) * | 2017-04-07 | 2018-08-13 | 이근주 | Holder block whichof probe pin is saparated easily |
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2018
- 2018-10-09 CN CN201811173391.1A patent/CN109194395B/en active Active
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| CN102253349A (en) * | 2010-04-28 | 2011-11-23 | 夏普株式会社 | Electronic unit action function measuring device and electronic unit action function measuring method |
| CN202074424U (en) * | 2011-03-29 | 2011-12-14 | 广州市雅江光电设备有限公司 | Led lamp base plate angle adjusting mechanism |
| CN103001694A (en) * | 2012-12-27 | 2013-03-27 | 中国科学院半导体研究所 | Device for testing light source performance in visible light communication system |
| CN103196552A (en) * | 2013-03-28 | 2013-07-10 | 宁波高新区通尚光电技术有限公司 | Measuring device for light intensity of narrow-light-beam light-emitting diode (LED) lamp |
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| CN109194395A (en) | 2019-01-11 |
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