CN102685990B - Dimmable tunnel LED (Light-Emitting Diode) illumination energy-saving control method - Google Patents
Dimmable tunnel LED (Light-Emitting Diode) illumination energy-saving control method Download PDFInfo
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Abstract
The invention provides a dimmable tunnel LED (Light-Emitting Diode) illumination energy-saving control system and method, belonging to the technical field of illumination energy-saving control in a tunnel. The dimmable tunnel LED illumination energy-saving control system comprises an LED tunnel lamp, a PWM (Pulse Width Modulation) dimmable digital power source, a region PLC (Programmable Logic Controller), a main control PLC, a first infrared vehicle detector, a second infrared vehicle detector, a first illumination detector, a second illumination detector, a radar vehicle detector and an external PLC. The dimmable tunnel LED illumination energy-saving control method is carried out according to the following steps of: 1, collecting a vehicle flow signal; 2, carrying out frequency modulation and dimming; 3, defining a name; 4, adjusting an illumination parking vision distance; 5, judging whether a vehicle passes through a tunnel or not, and determining the light intensity of a tunnel entrance section; and 6, adjusting the light intensity coefficient of the LED tunnel lamp. The dimmable tunnel LED illumination energy-saving control system and method provided by the invention have the advantages that the functions of illumination on demand, long-distance monitoring and automation are realized, energy-saving efficiency is improved, a real-time operation electric energy consumption curve is monitored, unattended operation is realized and labor cost is reduced.
Description
Technical field
The invention belongs to intraoral illumination energy-conserving control technology field, tunnel, particularly a kind of tunable optical tunnel LED illumination energy-saving control system and method.
Background technology
Flourish along with highway construction especially expressway construction, tunnel illumination mileage is more and more longer, and power consumption increases day by day, causes tunnel traffic safety and lighting energy saving problem outstanding day by day: 1, traffic safety.Vehicle is a bright-dark-bright process by the process in tunnel, in the process that human eye alternately changes in light and shade, tends to produce " black-hole effect " and " white hole effect ", and traffic accident very easily occurs; 2, lighting energy saving.Most of tunnels are distributed in mountain area, and vehicle at night is current rare, and the control system of existing tunnel lamp electric power loop can not be made reply in time according to vehicle flowrate change, makes waste of energy phenomenon comparatively serious.On the other hand, high-pressure sodium lamp remains the lighting source in most of tunnels, and the time delay of high-pressure sodium lamp has determined that high-pressure sodium lamp cannot realize real-time light modulation, and meanwhile, high-pressure sodium lamp power consumption is large, and the life-span is short, and start-up time is long; And that LED Tunnel Lamp has is energy-conservation, the life-span long, start the remarkable advantages such as fast, by PWM tunable optical digital power, can realize dimming function.
Summary of the invention
The deficiency existing for prior art, the invention provides a kind of tunable optical tunnel LED illumination energy-saving control system and method.
Technical scheme of the present invention is achieved in that a kind of tunable optical tunnel LED illumination energy-saving control system, and this system comprises LED Tunnel Lamp, PWM tunable optical digital power, region PLC controller, main control PLC controller, the first infrared ray car test device, the second infrared ray car test device, the first luminance detection device, the second luminance detection device, radar vehicle checker, outside PLC controller; Wherein LED Tunnel Lamp is arranged on inner top both sides, tunnel, and PWM tunable optical digital power is arranged on LED Tunnel Lamp rear, and the PWM tunable optical digital power in each interval is connected to for adjusting the region PLC controller of controlled running tunnel lamp brightness; All Ranges PLC controller is connected to for controlling the main control PLC controller of whole tunnel illuminating system; Both sides, road surface in tunnel, install the first infrared ray car test device and the first luminance detection device, and the first infrared ray car test device and the first luminance detection device are connected to main control PLC controller; Before tunnel portal, an illumination stopping sight distance place, above by vehicle, radar vehicle checker is installed, passing through a side of vehicle, the second infrared ray car test device is installed, by another side of vehicle, the second luminance detection device is being installed, radar vehicle checker, the second infrared ray car test device and the second luminance detection device are connected to for receiving simultaneously, the outside PLC controller of transmission of signal; Described outside PLC controller is connected to main control PLC controller.
The first described luminance detection device is placed in respectively entrance, changeover portion, interlude and the outlet section in tunnel; Described the first infrared ray car test device is placed in respectively the starting position of entrance, changeover portion, interlude and outlet section and the end position of outlet section in tunnel, and at interlude, a plurality of the first infrared ray car test devices are set, 84 meters, adjacent two infrared ray car test device intervals, actual installation quantity is as the criterion with actual environment;
A tunable optical tunnel LED illumination energy-saving control method, carries out as follows:
Step 1, gather vehicle flowrate signal, by be arranged on top, tunnel face and two ends apart from tunnel face before " D
s+ D
sS" the radar vehicle checker of distance and the second infrared ray car test device gather vehicle flowrate signal N, the second luminance detection device gathers the brightness L outside tunnel
20; D wherein
san illumination stopping sight distance, D
sSfor illumination stopping sight distance recruitment;
Step 2, LED Tunnel Lamp is carried out to frequency modulation light modulation processing, according to < < highway tunnel ventilation Lighting Design standard > >, entrance brightness L
th, changeover portion brightness L
tr, interlude brightness L
inwith outlet section brightness L
ex: according to the rules, the luminance standard while setting tunnel is defined as follows:
Entrance brightness L
th=K*L
20, wherein K is entrance brightness reduction coefficient, K=0.01～0.045
Changeover portion brightness L
tr=0.15*L
th
Interlude brightness L
in=9.0(cd/m
2)～1.5(cd/m
2)
Outlet section brightness L
ex=5*L
in
According to above-mentioned standard, above-mentioned each section of brightness of definition LED Tunnel Lamp is L
b, high-high brightness is L
max, make LED Tunnel Lamp reach brightness L
bneeded virtual voltage V
b, and reach high-high brightness L
maxthe voltage V of Shi Suoxu
max, have:
?
while passing through without car in tunnel, in tunnel, each LED Tunnel Lamp illumination is down to 10% of high-high brightness, the power that is about to each Tunnel Lamp is adjusted to 10% of rated power, between the regulatory region of LED Tunnel Lamp brightness, it is 10%～100% of high-high brightness, the adjustable range of the PWM tunable optical digital power corresponding with it is 1V～10V, main control PLC controller sends pressure regulation signal to PWM tunable optical digital power, thereby LED Tunnel Lamp is carried out to frequency modulation light modulation processing;
In step 3, tunnel, the first infrared vehicle inspection device comprises Y
2y
n+1, tunnel portal section, changeover portion, interlude and exit length are respectively D
1, D
2, D
3and D
4, the first luminance detection device comprises L
2, L
3, L
4, L
5, for detection of monochrome information in tunnel: entrance actual measurement brightness is L
s-th, changeover portion actual measurement brightness is L
s-tr, interlude section actual measurement brightness is L
s-in, outlet section actual measurement brightness is L
s-ex, when tunnel portal section, changeover portion, interlude and outlet section reach normal brightness, the voltage that outputs to each section of PWM brightness regulation section is V
th, V
tr, V
inand V
ex, when in tunnel, each section of brightness is not up to standard, the virtual voltage that outputs to each section of PWM brightness regulation section is V
s-th, V
s-tr, V
s-inand V
s-ex;
Step 4, adjustment illumination stopping sight distance, set D
s=158 meters, because actual tunnel illuminating LED lamp brightness regulation lags behind, for guaranteeing travel safety, the stopping sight distance that will throw light on increases D
sS, D
sS=V
t-max* T
sS, V wherein
t-maxfor the speed of a motor vehicle upper limit, T
sSfor LED lighting brightness regulates the time;
In step 5, judgement tunnel, have or not vehicle pass-through and determine the brightness of tunnel portal section;
Step 6, adjusting LED Tunnel Lamp luminance factor, along with the lamp passing of service time, can there is light decay situation in LED Tunnel Lamp, in tunnel, survey brightness value and normal brightness value while not being inconsistent, main control PLC controller is according to value of feedback, adjust each section of LED Tunnel Lamp luminance factor, by regulating the mode of the given voltage of LED Tunnel Lamp to adjust the brightness of Tunnel Lamp, make it meet the requirement of standard to tunnel brightness.
In described step 5 judgement tunnel, have or not vehicle pass-through and determine the brightness of tunnel portal section, minute 3 kinds of situations:
1) when two-way traffic one-way trip, when volume of traffic N>=1200, entrance brightness reduction coefficient K capping, 0.045; When volume of traffic N≤350, entrance brightness reduction coefficient K removes the limit, and 0.01; When the volume of traffic is during in 350≤N≤1200, interpolate value is all got in entrance brightness reduction coefficient K and interlude brightness,
interlude brightness
2) before tunnel portal, without vehicle, sail signal T into
wafter time, depending on passing through without vehicle in tunnel.A low speed of picking up the car is by tunnel, T
w=(D
1+ D
2+ D
3+ D
4+ D
s+ D
sS)/V
t-min, V wherein
t-minfor speed of a motor vehicle lower limit, D
sS=V
t-max* T
sS; Before tunnel portal, without vehicle, sail signal T into
win time, look this T
wfor the stand-by period, the opening of each Tunnel Lamp under all maintaining the standard in tunnel.
3), while passing through without vehicle in tunnel, tunnel LED lamp is down to 10% of rated power.
Advantage of the present invention: realize illumination as required, avoided " black-hole effect " and " white hole effect ", increased substantially the fail safe of tunnel driving; Detect in real time the vehicle in passing tunnel, real realization has car " to turn on light ", without car, " turns off the light ", reaches the energy-conservation object of tunnel illumination.
Accompanying drawing explanation
Fig. 1 is a kind of tunable optical tunnel LED illumination of the present invention energy-saving control system structured flowchart;
Fig. 2 is a kind of tunable optical tunnel LED illumination of the present invention energy-saving control system tunnel illumination section pie graph;
Fig. 3 is a kind of tunable optical tunnel LED illumination energy-saving control system of the present invention tunnel power-economizing method flow chart;
In figure: LI
1～LI
n+1for LED Tunnel Lamp, QP are region PLC controller, Y
2～Y
n+1be the first infrared ray car test device, Y
1be the second infrared ray car test device, L
2～L
5be the first luminance detection device, L
1be the second luminance detection device, X
1for radar vehicle checker, WP are outside PLC controller.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described further:
As shown in Figure 1, this system comprises LED Tunnel Lamp LI
1～LI
n+1, PWM tunable optical digital power, region PLC controller QP, main control PLC controller, the first infrared ray car test device Y
2～Y
n+1, the second infrared ray car test device Y
1, the first luminance detection device L
2～L
5, the second luminance detection device L
1, radar vehicle checker X
1, outside PLC controller WP: wherein LED Tunnel Lamp is arranged on inner top both sides, tunnel, for tunnel illumination; PWM tunable optical digital power is arranged on Tunnel Lamp rear, for adjusting LED Tunnel Lamp power; PWM tunable optical digital power in each interval is connected to for adjusting the region PLC controller of controlled running tunnel lamp brightness by holding wire; All Ranges PLC controller is connected to for controlling the main control PLC controller of whole tunnel illuminating system by Ethernet optical fiber; Both sides, road surface in tunnel, apart from 1 meter of left and right of pavement-height, install the first infrared ray car test device Y
2～Y
n+1and the first luminance detection device L
2～L
5, the first infrared ray car test device Y
2～Y
n+1and the first luminance detection device L
2～L
5by holding wire, be connected to main control PLC controller; Before tunnel portal, radar vehicle checker X installs above by vehicle in gauged distance place
1, by a side of vehicle, the second infrared ray car test device Y is installed
1, the second luminance detection device L is being installed by another side of vehicle
1, radar vehicle checker X
1by RS485 serial ports be connected to for receiving, the outside PLC controller of transmission of signal, the second infrared ray car test device Y
1, the second luminance detection device L
1by holding wire be connected to for receiving, the outside PLC controller WP of transmission of signal; Described outside PLC controller is connected to main control PLC controller by Ethernet optical fiber;
As shown in Figure 2, the first luminance detection device L in described tunnel
2～L
5be placed in respectively entrance, changeover portion, interlude and the outlet section in tunnel; Described the first infrared ray car test device Y
2～Y
n+1be placed in respectively the starting position of entrance, changeover portion, interlude and outlet section and the end position of outlet section in tunnel, and at interlude, a plurality of the first infrared ray car test devices are set, 84 meters, adjacent two infrared ray car test device intervals, actual installation quantity is as the criterion with actual environment;
A tunable optical tunnel LED illumination energy-saving control method, as shown in Figure 3, carries out as follows:
Step 1, by be arranged on tunnel face top and two ends apart from tunnel face before " D
s+ D
sS" the radar vehicle checker X of distance
1with the second infrared ray car test device Y
1gather vehicle flowrate signal N, the second luminance detection device L
1gather the brightness L outside tunnel
20; D wherein
san illumination stopping sight distance, D
sSfor illumination stopping sight distance recruitment;
Step 2, according to < < highway tunnel ventilation Lighting Design standard > >, entrance brightness L
th, changeover portion brightness L
tr, interlude brightness L
inwith outlet section brightness L
ex: according to the rules, the luminance standard while setting tunnel is defined as follows:
Entrance brightness L
th=K*L
20, wherein K is entrance brightness reduction coefficient, K=0.01～0.045
Changeover portion brightness L
tr=0.15*L
th
Interlude brightness L
in=9.0(cd/m
2)～1.5(cd/m
2)
Outlet section brightness L
ex=5*L
in
According to above-mentioned standard, above-mentioned each section of brightness of definition LED lamp is L
b, high-high brightness is L
max, make LED Tunnel Lamp reach brightness L
bneeded virtual voltage V
b, and reach high-high brightness L
maxthe voltage V of Shi Suoxu
max, have:
?
while passing through without car in tunnel, in tunnel, each LED lamp illumination is down to 10% of high-high brightness, the power that is about to each Tunnel Lamp is adjusted to 10% of rated power, so, it between the regulatory region of Tunnel Lamp brightness, is 10%～100% of high-high brightness, the adjustable range of the PWM tunable optical digital power corresponding with it is 1V～10V, and main control PLC controller sends pressure regulation signal to tunable optical digital power, thereby LED Tunnel Lamp is carried out to frequency modulation light modulation processing;
Step 3, definition tunnel portal section, changeover portion, interlude and exit length are respectively D
1, D
2, D
3and D
4, the first luminance detection device L
2, L
3, L
4, L
5detect monochrome information in tunnel: entrance actual measurement brightness L
s-th, changeover portion actual measurement brightness L
s-tr, interlude section actual measurement brightness L
s-in, outlet section actual measurement brightness L
s-ex, when tunnel portal section, changeover portion, interlude and outlet section reach normal brightness, the voltage that outputs to each section of PWM brightness regulation section is V
th, V
tr, V
inand V
ex, when in tunnel, each section of brightness is not up to standard, the virtual voltage that outputs to each section of PWM brightness regulation section is V
s-th, V
s-tr, V
s-inand V
s-ex;
Step 4, radar vehicle checker X
1, the second infrared ray car test device Y
1with the second luminance detection device L
1be arranged on respectively " D before hole
s+ D
sS" rice vehicle by place top and both sides, D
svalue press shown in figure below:
Illumination stopping sight distance D
stable
D is set
s158 meters of the accurate peaks of label taking, for detection of the information of vehicles outside tunnel and illuminance information.D
sS=V
t-max* T
sS, set V
t-max=100Km/h, T
sS=LED lighting brightness regulates the time;
In step 5, judgement tunnel, have or not vehicle pass-through and determine the brightness of tunnel portal section;
1) when two-way traffic one-way trip, when volume of traffic N>=1200, entrance brightness reduction coefficient K capping, 0.045; When volume of traffic N≤350, entrance brightness reduction coefficient K removes the limit, and 0.01; When the volume of traffic is worth therebetween, interpolate value is all got in entrance brightness reduction coefficient K and interlude brightness,
interlude brightness
2) when vehicle arrives X
1, Y
1during vehicle checker place, the signal that outside PLC controller collects vehicle checker and luminance detection device is uploaded to main control PLC controller, main control PLC controller sends instruction to entrance and changeover portion region PLC controller, entrance region PLC controller carries out pressure regulation processing by above-mentioned standard to the PMW tunable optical power supply of tunnel portal section and changeover portion, make the LED Tunnel Lamp of tunnel portal section and changeover portion adjust to normal brightness, all the other each sections are kept intact;
3) according to above-mentioned dimmer design scheme, Y
2～Y
3interval overall length equals length at entry D
1, Y
3～Y
4interval overall length equals transition section length D
2, Y
2～Y
3interval lighting standard is pressed entrance lighting standard and is calculated, Y
3～Y
4interval lighting standard is pressed changeover portion lighting standard and is calculated; When the judgement of main control PLC controller obtains entrance luminance detection device L
2on the entrance intrinsic brilliance L that transmits
s-thbelow standard punctual, to region PLC controller, send instruction to Y
2～Y
3interval PMW tunable optical power supply carries out pressure regulation processing, makes Y
2～Y
3running tunnel lamp meets standard light illumination requirement; When the judgement of main control PLC controller obtains changeover portion luminance detection device L
3on the changeover portion intrinsic brilliance L that transmits
s-trbelow standard punctual, to region PLC controller, send instruction to Y
3～Y
4interval PMW tunable optical power supply carries out pressure regulation processing, makes Y
3～Y
4running tunnel lamp meets standard light illumination requirement;
4) when vehicle arrives Y
2during vehicle checker place, tunnel Y
2～Y
3interval and Y
3～Y
4interval maintains illumination condition, according to design, and Y
4～Y
ninterval infrared ray car test device is placed in tunnel interlude, and wherein adjacent two infrared ray car test devices are separated by 84 meters, D
1+ D
2<(n-4) 84<D
1+ D
2+ D
3, Y
4～Y
5running tunnel lamp is opened by above-mentioned standard, and startup and adjustment process are consistent with above-mentioned 2,3 steps, and all the other each sections are kept intact;
5) when vehicle arrives Y
3during vehicle checker place, Y
2～Y
3interval, Y
3～Y
4interval and Y
4～Y
5interval maintains illumination condition, Y
5～Y
6running tunnel lamp is opened by above-mentioned standard, and startup and adjustment process are consistent with above-mentioned 2,3 steps, and all the other each sections are kept intact;
6) when vehicle arrives Y
4during vehicle checker place, Y
3～Y
4interval, Y
4～Y
5interval and Y
5～Y
6interval maintains illumination condition, Y
2～Y
3running tunnel lamp power is down to 10% of rated power, Y
6～Y
7running tunnel lamp is opened by above-mentioned standard, and startup and adjustment process are consistent with above-mentioned 2,3 steps, and all the other each sections are kept intact;
7) when vehicle arrives Y
n-2during vehicle checker place, Y
n-3～Y
n-2interval, Y
n-2～Y
n-1interval and Y
n-1～Y
ninterval maintains illumination condition, Y
n-4～Y
n-3running tunnel lamp power is down to 10% of rated power, according to design, and Y
n～Y
n+1interval overall length equals exit length D
4, Y
n～Y
n+1interval lighting standard is pressed outlet section lighting standard and is calculated, Y
n～Y
n+1running tunnel lamp is opened by above-mentioned standard, and startup and adjustment process are consistent with above-mentioned 2,3 steps, and all the other each sections are kept intact;
8) before tunnel portal, without vehicle, sail signal T into
wafter time, depending on passing through without vehicle in tunnel.A low speed of picking up the car is by tunnel, T
w=(D
1+ D
2+ D
3+ D
4+ D
s+ D
sS)/V
t-min, V
t-min=60Km/h, D is tunnel physical length, D
sS=V
t-max* T
sS;
9), while passing through without vehicle in tunnel, tunnel LED lamp is down to 10% of rated power;
Step 6, carrying out tunnel lighting control method when design, in tunnel, the quantity of each vehicle checker changes according to actual tunnel length, and the programming of main control PLC controller should be adjusted according to actual conditions.
Claims (2)
1. a tunable optical tunnel LED illumination energy-saving control method, the tunable optical tunnel LED illumination energy-saving control system adopting comprises LED Tunnel Lamp, PWM tunable optical digital power, region PLC controller, main control PLC controller, the first infrared ray car test device, the second infrared ray car test device, the first luminance detection device, the second luminance detection device, radar vehicle checker, outside PLC controller; Wherein LED Tunnel Lamp is arranged on inner top both sides, tunnel, and PWM tunable optical digital power is arranged on LED Tunnel Lamp rear, and the PWM tunable optical digital power in each interval is connected to for adjusting the region PLC controller of controlled running tunnel lamp brightness; All Ranges PLC controller is connected to for controlling the main control PLC controller of whole tunnel illuminating system; Both sides, road surface in tunnel, install the first infrared ray car test device and the first luminance detection device, and the first infrared ray car test device and the first luminance detection device are connected to main control PLC controller; Before tunnel portal, an illumination stopping sight distance place, above by vehicle, radar vehicle checker is installed, passing through a side of vehicle, the second infrared ray car test device is installed, by another side of vehicle, the second luminance detection device is being installed, radar vehicle checker, the second infrared ray car test device and the second luminance detection device are connected to for receiving simultaneously, the outside PLC controller of transmission of signal; Described outside PLC controller is connected to main control PLC controller;
The first described luminance detection device is placed in respectively entrance, changeover portion, interlude and the outlet section in tunnel; Described the first infrared ray car test device is placed in respectively the starting position of entrance, changeover portion, interlude and outlet section and the end position of outlet section in tunnel, at least two the first infrared ray car test devices of interlude setting;
It is characterized in that: the method is carried out as follows:
Step 1, gather vehicle flowrate signal, by be arranged on top, tunnel face and two ends apart from tunnel face before " D
s+ D
sS" the radar vehicle checker of distance and the second infrared ray car test device gather vehicle flowrate signal N, the second luminance detection device gathers the brightness L outside tunnel
20; D wherein
san illumination stopping sight distance, D
sSfor illumination stopping sight distance recruitment;
Step 2, LED Tunnel Lamp is carried out to frequency modulation light modulation processing, while passing through without car in tunnel, in tunnel, each LED lamp illumination is down to 10% of high-high brightness, the power that is about to each Tunnel Lamp is adjusted to 10% of rated power, it between the regulatory region of Tunnel Lamp brightness, is 10%～100% of high-high brightness, the adjustable range of the PWM tunable optical digital power corresponding with it is 1V～10V, and main control PLC controller sends pressure regulation signal to tunable optical digital power, and LED Tunnel Lamp is carried out to frequency modulation light modulation processing;
In step 3, tunnel, the first infrared vehicle inspection device comprises Y
3y
n+1, tunnel portal section, changeover portion, interlude and exit length are respectively D1, D2, D3 and D4, and the first luminance detection device comprises L
2, L
3, L
4, L
5, for detection of monochrome information in tunnel: entrance actual measurement brightness is L
s-th, changeover portion actual measurement brightness is L
s-tr, interlude actual measurement brightness is L
s-in, outlet section actual measurement brightness is L
s-ex, when tunnel portal section, changeover portion, interlude and outlet section reach normal brightness, the voltage that outputs to each section of PWM brightness regulation section is V
th, V
tr, V
inand V
ex, when in tunnel, each section of brightness is not up to standard, the virtual voltage that outputs to each section of PWM brightness regulation section is V
s-th, V
s-tr, V
s-inand V
s-ex;
Step 4, adjustment illumination stopping sight distance, set D
s=158 meters, because actual tunnel illuminating LED lamp brightness regulation lags behind, for guaranteeing travel safety, the stopping sight distance that will throw light on increases D
sS, D
sS=V
t-max* T
sS, V wherein
t-maxfor the speed of a motor vehicle upper limit, T
sSfor LED lighting brightness regulates the time;
In step 5, judgement tunnel, have or not vehicle pass-through and determine the brightness of tunnel portal section;
Step 6, adjusting LED Tunnel Lamp luminance factor, along with the lamp passing of service time, can there is light decay situation in Tunnel Lamp, in tunnel, survey brightness value and normal brightness value while not being inconsistent, main control PLC controller is according to value of feedback, adjust each section of LED Tunnel Lamp luminance factor, by regulating the mode of the given voltage of LED lamp to adjust the brightness of Tunnel Lamp, make it meet the requirement of standard to tunnel brightness.
2. tunable optical tunnel LED illumination energy-saving control method according to claim 1, is characterized in that: described step 5 is judged and in tunnel, had or not vehicle pass-through and determine the brightness of tunnel portal section, minute 3 kinds of situations:
1) when two-way traffic one-way trip, when volume of traffic N>=1200, entrance brightness reduction coefficient K capping, 0.045; When volume of traffic N≤350, entrance brightness reduction coefficient K removes the limit, and 0.01; When the volume of traffic is worth therebetween, interpolate value is all got in entrance brightness reduction coefficient K and interlude brightness,
interlude brightness
2) before tunnel portal, without vehicle, sail signal T into
wafter time, depending on passing through without vehicle in tunnel; A low speed of picking up the car is by tunnel, T
w=(D
1+ D
2+ D
3+ D
4+ D
s+ D
sS)/V
t-min, V wherein
t-minfor speed of a motor vehicle lower limit, D
sS=V
t-max* T
sS; Before tunnel portal, without vehicle, sail signal T into
win time, look this T
wfor the stand-by period, the opening of each Tunnel Lamp under all maintaining the standard in tunnel;
3), while passing through without vehicle in tunnel, tunnel LED lamp is down to 10% of rated power.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210163124.2A CN102685990B (en) | 2012-05-23 | 2012-05-23 | Dimmable tunnel LED (Light-Emitting Diode) illumination energy-saving control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210163124.2A CN102685990B (en) | 2012-05-23 | 2012-05-23 | Dimmable tunnel LED (Light-Emitting Diode) illumination energy-saving control method |
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| CN102685990B true CN102685990B (en) | 2014-04-30 |
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| CN108010012A (en) * | 2017-10-26 | 2018-05-08 | 厦门市智联信通物联网科技有限公司 | Tunnel portal black-hole effect evaluation method, system and intelligent lighting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103415113A (en) * | 2013-08-13 | 2013-11-27 | 厦门格绿能光电股份有限公司 | LED tunnel lamp system and brightness control method for LED tunnel lamps |
| CN104066243B (en) * | 2014-06-13 | 2015-09-09 | 长安大学 | Tunnel led illumination control method |
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