CN105072784A - Lighting device brightness adjusting method, lighting device and lighting system - Google Patents
Lighting device brightness adjusting method, lighting device and lighting system Download PDFInfo
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- CN105072784A CN105072784A CN201510582337.2A CN201510582337A CN105072784A CN 105072784 A CN105072784 A CN 105072784A CN 201510582337 A CN201510582337 A CN 201510582337A CN 105072784 A CN105072784 A CN 105072784A
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Abstract
The embodiment of the invention discloses a lighting device and a lighting system applied to road lighting, and further discloses a lighting device brightness adjusting method. The lighting device comprises an information acquisition unit, an information control unit and a lighting unit, wherein the information acquisition unit is used for acquiring traffic flow within a preset radius range taking the lighting unit as a circle center, and transmitting the traffic flow to the information control unit; and the information control unit controls the brightness of the lighting unit according to the traffic flow. On the basis of ensuring safety lighting in places with large traffic flow variations such as public squares and traffic secondary arteries, the function of controlling the lighting device according to the traffic flow of the road segments is achieved, and the purpose of saving electric energy is realized.
Description
Technical Field
The invention relates to the technical field of illumination, in particular to a method for adjusting brightness of an illumination device, the illumination device and an illumination system.
Background
Road lighting is an essential element for guaranteeing safe driving of roads at night, but along with the increasing of road mileage, the power resources consumed by matched road lighting devices are also increasing. When no vehicle passes through a road or the speed of the vehicle passing through the road is low, the road has low requirement on road illumination, and if the road is still illuminated normally, unnecessary waste of power resources is caused. In the prior art, when a road lighting device is arranged, the road surface illuminance is generally determined according to the highest lighting requirement of a road, and the requirement of required lighting brightness is met by changing the distance between the lighting devices or replacing the lamp bead power of the lighting devices, so that the requirement of road safety lighting is met. However, the lighting is always carried out by taking the highest lighting requirement as a standard, so that the electric energy is undoubtedly greatly wasted, and the requirement of sustainable development is not met.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides an illumination device for road illumination, which can adjust the brightness of the illumination unit according to the traffic flow of a road section.
In order to achieve the purpose, the invention provides the following technical scheme:
a lighting device applied to road lighting comprises: the system comprises an information acquisition unit, an information control unit and an illumination unit; wherein,
the information acquisition unit is used for acquiring the traffic flow within a preset radius range with the illumination unit as the center of a circle and transmitting the traffic flow to the information control unit;
and the information control unit is used for controlling the brightness of the illumination unit according to the traffic flow.
Preferably, the information control unit is configured to determine a target illuminance according to the traffic flow query preset lighting standard, and adjust the brightness of the lighting unit so that the brightness of the lighting unit is equal to the target illuminance.
Preferably, the information acquisition unit is further configured to acquire the road surface illuminance within a preset radius range with the illumination unit as a center of circle, and transmit the road surface illuminance to the information control unit.
Preferably, the information control unit is configured to determine a target illuminance according to the traffic flow rate compared with a preset lighting standard, and adjust the brightness of the lighting unit to make the collected road illuminance equal to the target illuminance.
Preferably, the preset radius is 1.5 times of the distance between adjacent lighting devices or 1.5 times of the effective sight distance of the driver during night driving.
A lighting system comprising at least one lighting device as described in any of the above embodiments.
A method for adjusting brightness of a lighting device is applied to a road lighting device and comprises the following steps:
collecting the traffic flow within a preset radius range by taking the lighting unit as a circle center;
and controlling the brightness of the lighting unit according to the traffic flow.
Preferably, the controlling of the brightness of the illumination unit according to the traffic flow includes: and inquiring a preset lighting standard according to the traffic flow to determine the target illuminance, and adjusting the brightness of the lighting unit to enable the brightness of the lighting unit to be equal to the target illuminance.
Preferably, the method further comprises: and acquiring the road surface illuminance within a preset radius range by taking the lighting unit as a circle center.
Preferably, the controlling of the brightness of the illumination unit according to the traffic flow includes: and inquiring a preset lighting standard according to the traffic flow to determine the target illuminance, and adjusting the brightness of the lighting unit to enable the collected road surface illuminance to be equal to the target illuminance.
According to the technical scheme, the lighting device and the lighting system applied to road lighting provided by the invention have the advantages that the information acquisition unit acquires the traffic flow within the preset radius range with the lighting unit as the center of a circle, and transmits the traffic flow to the information control unit; the information control unit controls the brightness of the illumination unit according to the traffic flow. On the basis of ensuring the safe illumination of places with large traffic flow changes, such as squares, secondary traffic roads and the like, the function of controlling the illumination device according to the traffic flow of road sections is realized, and the purpose of saving electric energy is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an illumination device according to an embodiment of the present invention;
fig. 2 is a schematic view of a working flow of a lighting device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an illumination device according to a preferred embodiment of the present invention;
fig. 4 is a schematic view illustrating a working flow of a lighting device according to another embodiment of the present invention;
fig. 5 is a flowchart illustrating a method for adjusting brightness of an illumination apparatus according to an embodiment of the present invention.
Detailed Description
As described in the background art, in the prior art, when a road lighting device is installed, the illuminance of a road surface is generally determined according to the highest lighting requirement of a road, and the required lighting brightness is achieved by changing the distance between the lighting devices or replacing the power of lamp beads of the lighting devices, so as to ensure the requirement of road safety lighting. However, the lighting is always carried out by taking the highest lighting requirement as a standard, so that the electric energy is undoubtedly greatly wasted, and the requirement of sustainable development is not met.
In view of this, an embodiment of the present invention provides an illumination device for road illumination, including: the system comprises an information acquisition unit, an information control unit and an illumination unit; wherein,
the information acquisition unit is used for acquiring the traffic flow within a preset radius range with the illumination unit as the center of a circle and transmitting the traffic flow to the information control unit;
and the information control unit is used for controlling the brightness of the illumination unit according to the traffic flow.
The embodiment of the invention also provides an illumination system which comprises at least one illumination device provided by the embodiment.
Correspondingly, the embodiment of the invention also provides a method for adjusting the brightness of the lighting device, which is applied to a road lighting device and comprises the following steps:
collecting the traffic flow within a preset radius range by taking the lighting unit as a circle center;
and controlling the brightness of the lighting unit according to the traffic flow.
In summary, the illumination device and the illumination system applied to road illumination provided by the invention collect traffic flow within a preset radius range with the illumination unit as a circle center by the information collection unit, and transmit the traffic flow to the information control unit; the information control unit controls the brightness of the illumination unit according to the traffic flow. On the basis of ensuring the safe illumination of places with large traffic flow changes, such as squares, secondary traffic roads and the like, the function of controlling the illumination device according to the traffic flow of road sections is realized, and the purpose of saving electric energy is realized.
Correspondingly, the method for adjusting the brightness of the lighting device provided by the invention can control the lighting brightness of the lighting unit according to the traffic flow. On the basis of ensuring the safe illumination of places with large traffic flow changes, such as squares, secondary traffic roads and the like, the function of controlling the illumination device according to the traffic flow of road sections is realized, and the purpose of saving electric energy is realized.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a lighting device, which is applied to road lighting, and the structure of the lighting device is shown in figure 1, and the lighting device comprises: the system comprises an information acquisition unit 010, an information control unit 020 and an illumination unit 030; wherein,
the information acquisition unit 010 is configured to acquire a traffic flow within a preset radius range with the illumination unit 030 as a center of a circle, and transmit the traffic flow to the information control unit 020.
On the basis of the above embodiment, in a further embodiment of the present invention, the preset radius is 1.5 times the distance between adjacent lighting devices or 1.5 times the effective sight distance for the driver to drive at night.
It should be noted that the preset radius may also be determined according to the performance of the information acquisition unit 010, or may also be determined according to the actual requirement of the application place of the lighting device.
It should be further noted that the traffic flow collected by the information collection unit 010 may be a highest traffic flow of a road segment within a preset radius range with the illumination unit as a center of circle, or an average traffic flow of a road segment within a preset radius range with the illumination unit as a center of circle.
On the basis of the above embodiment, in a preferred embodiment of the present invention, the information collecting unit is further configured to collect road surface illuminance within a preset radius range with the lighting unit 030 as a center, and transmit the road surface illuminance to the information control unit 020.
It should be noted that the road surface illuminance collected by the information collecting unit 010 may be an average road surface illuminance or a highest road surface illuminance of a road segment within a preset radius range with the lighting unit 030 as a center of circle.
On the basis of the above embodiment, in another embodiment of the present invention, the information acquisition unit 010 includes: the system comprises a traffic flow acquisition module and a illuminance acquisition module; wherein,
the traffic flow acquisition module is configured to detect a traffic flow of a road segment within a preset radius range with the lighting unit 030 as a center of a circle, and transmit the traffic flow to the information control unit 020;
the illuminance acquisition module is configured to detect road illuminance of a road segment within a preset radius range with the lighting unit 030 as a center of a circle, and transmit the road illuminance to the information control unit 020.
On the basis of the above embodiments, in a preferred embodiment of the present invention, the traffic flow collecting module is a traffic flow counter. However, what kind of device is specifically adopted by the traffic flow collection module is not limited in the present invention, and any device may be used as long as it has a traffic flow collection and statistics function, and the present invention is specifically determined according to actual situations.
On the basis of the above embodiment, in another preferred embodiment of the present invention, the illuminance acquisition module is an illuminance sensor. Similarly, the invention does not limit what kind of device is adopted by the illuminance acquisition module, and only needs a device with a road illuminance acquisition function, which is determined according to the actual situation.
The information control unit 020 is configured to control the brightness of the lighting unit 030 according to the traffic flow.
On the basis of the foregoing embodiment, in an embodiment of the present invention, the information control unit 020 is configured to determine a target illuminance according to the traffic flow query preset lighting standard, and adjust the brightness of the lighting unit 030 so that the brightness of the lighting unit 030 is equal to the target illuminance.
It should be noted that the preset lighting standard may be set according to a national road lighting standard, or may be set according to a requirement of an application place of the lighting device.
It should be noted that the information control unit 020 stores the output power relationship of the lighting unit 030 corresponding to different illumination luminances, and the output power of the lighting unit 030 can be adjusted according to the target illumination luminance so as to achieve the purpose of making the luminance of the lighting unit 030 equal to the target illumination luminance. However, the method for adjusting the brightness of the lighting unit 030 by the information control unit 020 is not limited in the present invention, and the output current of the lighting unit 030 may be adjusted to achieve the purpose of making the brightness of the lighting unit 030 equal to the target illuminance. As the case may be.
On the basis of the foregoing embodiment, in a preferred embodiment of the present invention, the information control unit 020 is configured to determine a target illuminance according to the traffic flow rate versus a preset lighting standard, and adjust the brightness of the lighting unit 030 so that the collected road surface illuminance is equal to the target illuminance.
It should be noted that, when there is auxiliary lighting on the road to which the lighting device is applied, such as moonlight, the road surface illuminance is equal to the sum of the auxiliary lighting illuminance and the lighting illuminance of the lighting unit 030, so that the purpose of making the collected road surface illuminance equal to the target illuminance is to further save the electric energy used by the lighting unit 030.
In combination with the above embodiments, a specific embodiment of the present invention provides a working flow of the lighting device, as shown in fig. 2:
s01: the lighting device starts to work;
s02: the information acquisition unit 010 acquires the traffic flow and the road surface illuminance of the illumination device in a radius range which is 1.5 times of the effective visual range of the driver in night driving, and transmits the traffic flow and the road surface illuminance to the information control unit 020;
s03: the information control unit 020 determines target illuminance according to the traffic flow compared with the national road lighting standard;
s04: the information control unit 020 adjusts the brightness of the lighting unit 030 according to the target illuminance;
s05: the information control unit 020 judges whether the collected road surface illuminance is equal to the target illuminance, and if so, proceeds to S06; if not, go to S04;
s06: the information control unit 020 stops adjusting the brightness of the lighting unit 030, and returns to S02.
On the basis of the above embodiments, a specific embodiment of the present invention provides a structure of the lighting device, as shown in fig. 3, including:
the system comprises a traffic flow acquisition module 011, a illuminance acquisition module 012, an information control unit 020, an LED drive circuit 031 and an LED lamp bead 032; wherein,
the LED driving circuit 031 adjusts the brightness of the LED lamp bead 032 under the control of the information control unit 020.
Accordingly, in the preferred embodiment, there is also provided a workflow of the lighting device, as shown in fig. 4:
s11: the lighting device starts to work;
s12: the traffic flow rate collection module 011 collects traffic flows in a range of a radius which is 1.5 times of the distance between adjacent lighting devices with the lighting units 030 as the center of a circle, and transmits the traffic flows to the information control unit 020;
s13: the illuminance acquisition module 012 acquires the road illuminance within a range of a radius of 1.5 times of the distance between the adjacent lighting apparatuses with the lighting unit 030 as the center of a circle, and transmits the road illuminance to the information control unit 020;
s14: the information control unit 020 queries the national road lighting standard according to the traffic flow to determine the target illuminance;
s15: the information control unit 020 sends a brightness adjustment instruction to the LED driving circuit 031 according to the target illuminance;
s16: the LED driving circuit 031 adjusts the brightness of the LED lamp bead 032 according to the brightness adjustment instruction;
s17: the information control unit 020 judges whether the collected road surface illuminance is equal to the target illuminance, and if so, proceeds to S18; if not, return to S15;
s18: the information control unit 020 stops adjusting the brightness of the lighting unit 030, and returns to S12.
On the basis of the above embodiment, in another preferred embodiment of the present invention, the response time of the LED lamp bead 032 is 0ms to 50ms, excluding end points. The response time is the time from the time when the LED driving circuit 031 sends a driving instruction to adjust the brightness of the LED lamp bead 032 to the time when the LED lamp bead 032 responds to the driving instruction. The value of the response time is not limited, and is determined according to the actual situation.
On the basis of the above embodiments, in a specific embodiment of the present invention, the lighting unit 030 is an incandescent lamp or a low-pressure mercury lamp.
It should be noted that, when the lighting device according to the above embodiment works, the information control unit 020 determines whether the illuminance collected by the information collection unit 010 is equal to the target illuminance, and if so, controls the output current of the LED driving circuit 031 to the LED lamp bead 032 to be unchanged; if the road surface illuminance acquired by the information acquisition unit 010 is higher than the target illuminance, the information control unit 020 controls the LED driving circuit 031 to reduce the output current to the LED lamp bead 032; if the road surface illuminance collected by the information collection unit 010 is lower than the target illuminance, the information control unit 020 controls the LED driving circuit 031 to increase the output current to the LED bead 032, so as to achieve the purpose of controlling the illumination brightness of the illumination unit 030.
It should be noted that the specific structure of the above-mentioned lighting device is only one possible implementation manner of the lighting device, and the lighting unit 030 may also be an incandescent lamp or a low-pressure mercury lamp, when the lighting unit 030 is an incandescent lamp or a low-pressure mercury lamp, the information control unit 020 determines whether the illuminance collected by the information collection unit 010 is equal to the target illuminance, and if so, maintains the output voltage of the information control unit 020, and maintains the current passing through the lighting unit 030; if not, when the road surface illuminance acquired by the information acquisition unit 010 is higher than the target illuminance, the information control unit 020 reduces the output voltage by a preset value, and reduces the current passing through the illumination unit 030; when the road surface illuminance collected by the information collection unit 010 is lower than the target illuminance, the information control unit 020 increases the output voltage by a preset value, and increases the current passing through the lighting unit 030. The above adjustment process is repeated until the road surface illuminance acquired by the information acquisition unit 010 is equal to the target illuminance. The invention does not limit the preset value and the specific method for adjusting the lighting unit 030 by the information control unit 020, and is determined according to the actual situation.
As can be seen from the above description, the lighting unit 030, whether it is an LED driving circuit 031 and an LED lamp bead 032, or an incandescent lamp or a low-pressure mercury lamp, can control the brightness of the lighting unit 030 through the information control unit 020. Other bead types may be used as the lighting unit 030, and the brightness adjustment process is similar to the above description. Therefore, the invention does not limit the specific bead type and composition structure of the lighting unit 030, which is determined by the actual situation.
On the basis of the above embodiments, in a specific embodiment of the present invention, the lighting device uses the commercial power as the power supply, but the lighting device may also use a battery as the power supply. In another embodiment of the present invention, the lighting device uses a photovoltaic cell as a power supply. The form of the power supply adopted by the lighting device is not limited, and the power supply is determined according to the actual situation.
Correspondingly, the invention further provides an illumination system comprising at least one illumination device according to any one of the above embodiments.
Correspondingly, an embodiment of the present invention further provides a method for adjusting brightness of a lighting device, which is applied to a road lighting device, as shown in fig. 5, and includes:
step 1: and collecting the traffic flow within a preset radius range by taking the lighting unit as a circle center.
The traffic flow may be an average traffic flow of the road in a certain time period, or may be a traffic flow of the road at the current time. The present invention is not limited to this, and is determined by the actual situation.
Step 2: and controlling the brightness of the lighting unit according to the traffic flow.
On the basis of the above-described embodiment, in an embodiment of the present invention, controlling the brightness of the lighting unit 030 according to the traffic flow rate includes: and inquiring a preset lighting standard according to the traffic flow to determine a target illuminance, and adjusting the brightness of the lighting unit 030 to make the brightness of the lighting unit 030 equal to the target illuminance.
It should be noted that the preset lighting standard may be a national road lighting standard, or may be determined according to lighting requirements of specific occasions, such as airports, tunnels, and the like. The preset radius may be determined according to the performance or the actual requirement of the information acquisition unit 010, which is not limited in the present invention, and is specifically determined according to the actual situation.
On the basis of the above embodiment, in a further embodiment of the present invention, the preset radius is 1.5 times the distance between the adjacent lighting devices or 1.5 times the effective sight distance for the driver to drive at night.
It should be noted that the preset radius may also be determined according to a special weather condition or climate condition or other factors, and the method for determining the preset radius is not limited in the present invention, and is specifically determined according to the actual situation.
On the basis of the above embodiment, in a preferred embodiment of the present invention, the method further includes:
and collecting the road surface illuminance within a preset radius range by taking the lighting unit 030 as a circle center.
It should be noted that the road surface illuminance may be the highest illuminance of the road surface within a preset radius range with the lighting unit 030 as a center of circle, may also be the average illuminance of the road surface within the preset radius range with the lighting unit 030 as a center of circle, and may also be the highest illuminance or the average illuminance at a certain height from the road surface within the preset radius range with the lighting unit 030 as a center of circle. The present invention is not limited to this, and is determined by the actual situation.
On the basis of the above-described embodiment, in still another preferred embodiment of the present invention, controlling the brightness of the lighting unit 030 according to the traffic flow rate includes: and inquiring a preset lighting standard according to the traffic flow to determine a target illuminance, and adjusting the brightness of the lighting unit 030 to make the collected road surface illuminance equal to the target illuminance.
It should be noted that, when there is auxiliary lighting on the road to which the lighting device is applied, such as moonlight, the road surface illuminance is equal to the sum of the auxiliary lighting illuminance and the lighting illuminance of the lighting unit 030, so that the purpose of making the road surface illuminance equal to the target illuminance is to further save the electric energy used by the lighting unit 030.
In summary, the illumination device and the illumination system applied to road illumination provided by the present invention are configured such that the information collecting unit 010 collects traffic flow within a preset radius range with the illumination unit as a circle center, and transmits the traffic flow to the information control unit 020; the information control unit 020 controls the brightness of the lighting unit 030 according to the traffic flow rate. On the basis of ensuring the safe illumination of places with large traffic flow changes, such as squares, secondary traffic roads and the like, the function of controlling the illumination device according to the traffic flow of road sections is realized, and the purpose of saving electric energy is realized.
Correspondingly, the invention also provides a brightness adjusting method of the lighting device, which can control the lighting brightness of the lighting unit according to the traffic flow. On the basis of ensuring the safe illumination of places with large traffic flow changes, such as squares, secondary traffic roads and the like, the function of controlling the illumination device according to the traffic flow of road sections is realized, and the purpose of saving electric energy is realized.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A lighting device for road lighting, comprising: the system comprises an information acquisition unit, an information control unit and an illumination unit; wherein,
the information acquisition unit is used for acquiring the traffic flow within a preset radius range with the illumination unit as the center of a circle and transmitting the traffic flow to the information control unit;
and the information control unit is used for controlling the brightness of the illumination unit according to the traffic flow.
2. The lighting device as claimed in claim 1, wherein the information control unit is configured to determine a target illuminance according to the traffic flow query preset lighting standard, and adjust the brightness of the lighting unit so that the brightness of the lighting unit is equal to the target illuminance.
3. The illumination device as claimed in claim 1, wherein the information collecting unit is further configured to collect the illuminance of the road surface within a preset radius range around the illumination unit as a center, and transmit the illuminance to the information control unit.
4. The lighting device as claimed in claim 3, wherein the information control unit is configured to determine a target illuminance according to the traffic flow rate compared to a preset lighting standard, and adjust the brightness of the lighting unit so that the collected road surface illuminance is equal to the target illuminance.
5. A lighting device as recited in claim 1, wherein said predetermined radius is 1.5 times a distance between adjacent lighting devices or 1.5 times an effective driver's night driving line of sight.
6. An illumination system, characterized in that it comprises at least one illumination device according to any one of claims 1-5.
7. A method for adjusting brightness of a lighting device is applied to a road lighting device and is characterized by comprising the following steps:
collecting the traffic flow within a preset radius range by taking the lighting unit as a circle center;
and controlling the brightness of the lighting unit according to the traffic flow.
8. The method of claim 7, wherein controlling the brightness of the lighting unit based on the traffic flow comprises: and inquiring a preset lighting standard according to the traffic flow to determine the target illuminance, and adjusting the brightness of the lighting unit to enable the brightness of the lighting unit to be equal to the target illuminance.
9. The method of claim 7, further comprising:
and acquiring the road surface illuminance within a preset radius range by taking the lighting unit as a circle center.
10. The method of claim 9, wherein controlling the brightness of the lighting unit based on the traffic flow comprises: and inquiring a preset lighting standard according to the traffic flow to determine the target illuminance, and adjusting the brightness of the lighting unit to enable the collected road surface illuminance to be equal to the target illuminance.
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| CN201510582337.2A CN105072784A (en) | 2015-09-14 | 2015-09-14 | Lighting device brightness adjusting method, lighting device and lighting system |
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