CN101346025A - Road tunnel illumination control method - Google Patents
Road tunnel illumination control method Download PDFInfo
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- CN101346025A CN101346025A CNA2008100701947A CN200810070194A CN101346025A CN 101346025 A CN101346025 A CN 101346025A CN A2008100701947 A CNA2008100701947 A CN A2008100701947A CN 200810070194 A CN200810070194 A CN 200810070194A CN 101346025 A CN101346025 A CN 101346025A
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- brightness
- tunnel
- section
- illuminating
- intrinsic brilliance
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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
Abstract
The invention provides a highway tunnel illumination control method, which is characterized in that: it comprises the following steps: STEP1, determining basic section brightness of the highway tunnel L5 according to the traffic volume Q; STEP 2, judging whether it is day or night: while it is day, setting the highway tunnel into five or six illuminating sections and installing a brightness detector on each section to acquiring the intrinsic brightness on current time, adjusting the brightness of every section using the intrinsic brightness difference epsilon to make the intrinsic brightness of every section approach to the theoretical illumination brightness L in current time; while it is night, setting the highway tunnel as one illumination section, acquiring the intrinsic brightness on current time, adjusting the brightness to make the intrinsic brightness approach to the theoretical illumination brightness L. The method of the invention can accurately control the illumination brightness in the tunnel on real time according to the outer light as well as achieves the technology effect of high efficiency and energy saving.
Description
Technical field
The invention belongs to the highway lighting technical field, specifically is a kind of method that highway tunnel illumination is controlled.
Background technology
The lighting technology of vcehicular tunnel is followed the development of road construction technology always and is developed, and along with improving constantly of pavement quality, the speed of a motor vehicle is also improving constantly, and this illumination to vcehicular tunnel has proposed requirements at the higher level.Special in the moment that automobile high-speed sailed or rolled away from the tunnel into, driver's meeting is difficult to adapt to the dazzle that black and white contrast forms because of the light strong contrast of moment, of short duration losing one's sight occur, and the speed of a motor vehicle still keeps high speed, is easy to cause that traffic accident takes place.So the transient process of intersection illumination then is that illuminating engineering must anatomize consideration in outside the tunnel and the tunnel, conscientiously the emphasis of Chu Liing.Answer scientific design light in the joint portion, make great efforts to make brightness to gradually change, give the process of one section adaptation of driver as far as possible, guarantee good visual effect.Light intensity is gradually changed, produce fade effect, satisfy the requirement that the driver conforms.
Present tunnel lighting control method comprises two kinds of manual control and sequencing control, and manually control is manually according to the variation of tunnel face light, with operator's sensation tunnel illuminating lamp is controlled, and its stability and accuracy all can not get guarantee; Sequencing control is the program control tunnel illuminating lamp that is provided with according in advance, and this is empirical data just also, can not the time follow extraneous light and carry out the self adaptation adjustment in fact.
The shortcoming of existing tunnel lighting control technique: the real control of houselights accurately in the time of all can not carrying out tunnel internal according to extraneous light.
Summary of the invention
The purpose of this invention is to provide a kind of road tunnel illumination control method, the real control of houselights accurately in the time of can carrying out according to the tunnel extraneous light.
For achieving the above object, the invention provides a kind of road tunnel illumination control method, its key is, follows these steps to carry out:
Step 1 is determined the basic segment brightness L of vcehicular tunnel according to volume of traffic Q
5
Volume of traffic detector is installed in highway, is regularly obtained current volume of traffic Q, when the volume of traffic was 700≤Q≤2400, the tunnel basic segment luminance factor X more than 3000 meters got 80%, thus following basic segment brightness L
5Relational expression with the volume of traffic;
L
5=X (2.5+ (2Q-1400)/1700) (if length of tunnel L 〉=3000, X=0.8, otherwise, X=1);
If Q=2400 is got in Q＞2400, if Q=700 is got in Q＜700; But no matter the tunnel how long, as long as X=1 is then got in Q＞2400;
Step 2, judge daytime and night:
Brightness detection instrument is installed outside the tunnel, and is set the brightness separation Lc at daytime and night,
Lc＝1.25L
5/k；
L wherein
5Be the intrinsic brilliance value of basic segment in the hole, k is for to extrapolate the entrance refraction coefficient by volume of traffic Q, k=0.035-0.01 (2400-Q)/1700;
Regularly obtain the outer illumination brightness L of current period inner tunnel
0, compare L
0With brightness separation Lc, if L
0Greater than Lc, then be judged as daytime; If L
0Be less than or equal to Lc, then be judged as night;
When being judged as daytime, the control mode of tunnel brightness is to follow these steps to carry out:
The 1st step, vcehicular tunnel is provided with six or five illumination highway sections, i.e. entrance, changeover portion 1, changeover portion 2, changeover portion 3, basic segment and outlet section are when the ratio of the brightness between changeover portion 3 and the basic segment is less than or equal to 1.25, cancellation changeover portion 3 becomes five illumination highway sections;
Brightness detection instrument is all installed in each highway section, with the outer illumination brightness L of current period inner tunnel
0, volume of traffic Q and entrance refraction coefficient k be benchmark, extrapolates theoretical light degree of the illuminating L in each highway section
1, L
2, L
3, L
4, L
5, L
6:
Obtain first section, i.e. theoretical light degree of the illuminating L of entrance
1: L
1=k * L
0
Obtain second section, i.e. theoretical light degree of the illuminating L of changeover portion 1
2: L
2=0.3k * L
0
Obtain the 3rd section, i.e. theoretical light degree of the illuminating L of changeover portion 2
3: L
3=0.1k * L
0
Obtain the 4th section, i.e. theoretical light degree of the illuminating L of changeover portion 3
4: L
4=0.035k * L
0
Obtain the 5th section, i.e. theoretical light degree of the illuminating L of basic segment
5:
Obtain the 6th section, i.e. theoretical light degree of the illuminating L of outlet section
6: L
6=5L
5
In the 2nd step, obtain the intrinsic brilliance of current period;
Utilize the brightness detection instrument in the highway section of respectively throwing light in the tunnel to obtain the intrinsic brilliance value in each highway section in the current period: L '
1, L '
2, L '
3, L '
4, L '
5, L '
6
In the 3rd step, draw the intrinsic brilliance difference ε in each highway section in the current period:
ε
1＝L
1-L′
1；
ε
2＝L
2-L′
2；
ε
3＝L
3-L′
3；
ε
4＝L
4-L′
4；
ε
5＝L
5-L′
5；
ε
6＝L
6-L′
6；
Utilize intrinsic brilliance difference ε, the brightness in each highway section is adjusted, make in the current period intrinsic brilliance in each highway section level off to theoretical light degree of illuminating L;
When being judged as night, the control mode of tunnel brightness is:
In the 1st step, vcehicular tunnel is provided with illumination highway section, i.e. a basic segment;
Its theoretical light degree of illuminating L=4.5 Δ k
Δ k represents the brightness adjustment control coefficient, supposes Q=700～2400 o'clock, and Δ k adopts interpolation, when Q 〉=2400, Δ k=1, Q≤700 o'clock, Δ k=0.5/X, thus can push away following Δ k computing formula,
In the 2nd step, obtain the intrinsic brilliance of current period;
Utilize brightness detection instrument in the tunnel to obtain intrinsic brilliance value in the current period: L ';
In the 3rd step, draw the intrinsic brilliance difference ε in the current period:
ε＝L-L’；
Utilize intrinsic brilliance difference ε, brightness is adjusted, make current period intrinsic brilliance level off to theoretical light degree of illuminating L.
The automatic control of illumination is the real-time change according to the brightness outside the hole and the volume of traffic, regulates the power of illuminating lamp automatically, makes under the condition that the operation of satisfying requires, and the power consumption of throwing light on is minimum.
Modern tunnel illuminating lamp progressively adopts the LED lighting technology, can realize 256 grades of brilliance controls to the LED lamp just with amplitude modulation or accent stream technology, and this is the tunnel illumination adaptive control undoubtedly, realizes the more effective energy-conservation main support that hardware is provided.
Described brightness detection instrument carried out reading of a brightness detection and volume of traffic Q in per 10 or 5 minutes.Regularly read brightness and traffic information, can reduce the operand of control system.
Remarkable result of the present invention is: by the volume of traffic detector vehicle flowrate is sent to master controller, by brightness detection instrument intrinsic brilliance is sent to master controller, carry out amplitude modulation or transfer current control by the power supply of master controller, thereby reach the control respectively of each section road brightness in the tunnel each section LED in the tunnel.The real control of houselights accurately when this method can be carried out tunnel internal according to extraneous light.Can reach energy-efficient technique effect again.
Description of drawings
Accompanying drawing 1 is a flow chart of steps of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
As shown in Figure 1,
Step 1 is determined the basic segment brightness L of vcehicular tunnel according to volume of traffic Q
5
Volume of traffic detector is installed in highway, was obtained once current volume of traffic Q every 5 or 10 minutes, when the volume of traffic was 700≤Q≤2400, the tunnel basic segment luminance factor X more than 3000 meters got 80%, thus following basic segment brightness L
5Relational expression with the volume of traffic;
L
5=X (2.5+ (2Q-1400)/1700) (if length of tunnel L 〉=3000, X=0.8, otherwise, X=1);
If Q=2400 is got in Q＞2400, if Q=700 is got in Q＜700; But no matter the tunnel how long, as long as X=1 is then got in Q＞2400;
Step 2, judge daytime and night:
Brightness detection instrument is installed outside the tunnel, and is set the brightness separation Lc at daytime and night,
Lc＝1.25L
5/k；
L wherein
5Be the intrinsic brilliance value of basic segment in the hole, k is for to extrapolate the entrance refraction coefficient by volume of traffic Q, k=0.035-0.01 (2400-Q)/1700;
Obtained the illumination brightness L outside the current period inner tunnel every 5 or 10 minutes
0, compare L
0With brightness separation Lc, if L
0Greater than Lc, then be judged as daytime; If L
0Be less than or equal to Lc, then be judged as night;
When being judged as daytime, the control mode of tunnel brightness is to follow these steps to carry out:
The 1st step, vcehicular tunnel is provided with six or five illumination highway sections, i.e. entrance, changeover portion 1, changeover portion 2, changeover portion 3, basic segment and outlet section are when the ratio of the brightness between changeover portion 3 and the basic segment is less than or equal to 1.25, cancellation changeover portion 3 becomes five illumination highway sections;
Brightness detection instrument is all installed in each highway section, with the outer illumination brightness L of current period inner tunnel
0, volume of traffic Q and entrance refraction coefficient k be benchmark, extrapolates theoretical light degree of the illuminating L in each highway section
1, L
2, L
3, L
4, L
5, L
6:
Obtain first section, i.e. theoretical light degree of the illuminating L of entrance
1: L
1=k * L
0
Obtain second section, i.e. theoretical light degree of the illuminating L of changeover portion 1
2: L
2=0.3k * L
0
Obtain the 3rd section, i.e. theoretical light degree of the illuminating L of changeover portion 2
3: L
3=0.1k * L
0
Obtain the 4th section, i.e. theoretical light degree of the illuminating L of changeover portion 3
4: L
4=0.035k * L
0
Obtain the 5th section, i.e. theoretical light degree of the illuminating L of basic segment
5:
Obtain the 6th section, i.e. theoretical light degree of the illuminating L of outlet section
6: L
6=5L
5
In the 2nd step, obtain the intrinsic brilliance of current period;
Utilize the brightness detection instrument in the highway section of respectively throwing light in the tunnel to obtain the intrinsic brilliance value in each highway section in the current period: L '
1, L '
2, L '
3, L '
4, L '
5, L '
6
In the 3rd step, draw the intrinsic brilliance difference ε in each highway section in the current period:
ε
1＝L
1-L′
1；
ε
2＝L
2-L′
2；
ε
3＝L
3-L′
3；
ε
4＝L
4-L′
4；
ε
5＝L
5-L′
5；
ε
6＝L
6-L′
6；
Utilize intrinsic brilliance difference ε, the brightness in each highway section is adjusted, make in the current period intrinsic brilliance in each highway section level off to theoretical light degree of illuminating L;
Modern tunnel illuminating lamp progressively adopts the LED lighting technology, can realize 256 grades of brilliance controls to the LED lamp just with amplitude modulation or accent stream technology.Volume of traffic detector sends to master controller with vehicle flowrate, and brightness detection instrument sends to master controller with intrinsic brilliance, and master controller carries out amplitude modulation or transfers current control the power supply of each section LED in the tunnel, reaches the control respectively of each section road brightness in the tunnel.
When being judged as night, the control mode of tunnel brightness is:
In the 1st step, vcehicular tunnel is provided with illumination highway section, i.e. a basic segment;
Its theoretical light degree of illuminating L=4.5 Δ k
Δ k represents the brightness adjustment control coefficient, supposes Q=700～2400 o'clock, and Δ k adopts interpolation, when Q 〉=2400, Δ k=1, Q≤700 o'clock, Δ k=0.5/X, thus can push away following Δ k computing formula,
In the 2nd step, obtain the intrinsic brilliance of current period;
Utilize brightness detection instrument in the tunnel to obtain intrinsic brilliance value in the current period: L ';
In the 3rd step, draw the intrinsic brilliance difference ε in the current period:
ε＝L-L’：
Utilize intrinsic brilliance difference ε, brightness is adjusted, make current period intrinsic brilliance level off to theoretical light degree of illuminating L.
Claims (2)
1, a kind of road tunnel illumination control method is characterized in that, is to follow these steps to carry out:
Step 1 is determined the basic segment brightness L of vcehicular tunnel according to volume of traffic Q
5
Volume of traffic detector is installed in highway, is regularly obtained current volume of traffic Q, when the volume of traffic was 700≤Q≤2400, the tunnel basic segment luminance factor X more than 3000 meters got 80%, thus following basic segment brightness L
5Relational expression with the volume of traffic;
L
5=X (2.5+ (2Q-1400)/1700) (if length of tunnel L 〉=3000, X=0.8, otherwise, X=1);
If Q=2400 is got in Q＞2400, if Q=700 is got in Q＜700; But no matter the tunnel how long, as long as X=1 is then got in Q＞2400;
Step 2, judge daytime and night:
Brightness detection instrument is installed outside the tunnel, and is set the brightness separation Lc at daytime and night,
Lc＝1.25?L
5/k；
L wherein
5Be the intrinsic brilliance value of basic segment in the hole, k is for to extrapolate the entrance refraction coefficient by volume of traffic Q, k=0.035-0.01 (2400-Q)/1700;
Regularly obtain the outer illumination brightness L of current period inner tunnel
0, compare L
0With brightness separation Lc, if L
0Greater than Lc, then be judged as daytime; If L
0Be less than or equal to Lc, then be judged as night;
When being judged as daytime, the control mode of tunnel brightness is to follow these steps to carry out:
The 1st step, vcehicular tunnel is provided with six or five illumination highway sections, i.e. entrance, changeover portion 1, changeover portion 2, changeover portion 3, basic segment and outlet section are when the ratio of the brightness between changeover portion 3 and the basic segment is less than or equal to 1.25, cancellation changeover portion 3 becomes five illumination highway sections;
Brightness detection instrument is all installed in each highway section, with the outer illumination brightness L of current period inner tunnel
0, volume of traffic Q and entrance refraction coefficient k be benchmark, extrapolates theoretical light degree of the illuminating L in each highway section
1, L
2, L
3, L
4, L
5, L
6:
Obtain first section, i.e. theoretical light degree of the illuminating L of entrance
1: L
1=k * L
0
Obtain second section, i.e. theoretical light degree of the illuminating L of changeover portion 1
2: L
2=0.3k * L
0
Obtain the 3rd section, i.e. theoretical light degree of the illuminating L of changeover portion 2
3: L
3=0.1k * L
0
Obtain the 4th section, i.e. theoretical light degree of the illuminating L of changeover portion 3
4: L
4=0.035k * L
0
Obtain the 5th section, i.e. theoretical light degree of the illuminating L of basic segment
5:
Obtain the 6th section, i.e. theoretical light degree of the illuminating L of outlet section
6: L
6=5L
5
In the 2nd step, obtain the intrinsic brilliance of current period;
Utilize the brightness detection instrument in the highway section of respectively throwing light in the tunnel to obtain the intrinsic brilliance value in each highway section in the current period: L '
1, L '
2, L '
3, L '
4, L '
5, L '
6
In the 3rd step, draw the intrinsic brilliance difference ε in each highway section in the current period:
ε
1＝L
1-L′
1；
ε
2＝L
2-L′
2；
ε
3＝L
3-L′
3；
ε
4＝L
4-L′
4；
ε
5＝L
5-L′
5；
ε
6＝L
6-L′
6；
Utilize intrinsic brilliance difference ε, the brightness in each highway section is adjusted, make in the current period intrinsic brilliance in each highway section level off to theoretical light degree of illuminating L;
When being judged as night, the control mode of tunnel brightness is:
In the 1st step, vcehicular tunnel is provided with illumination highway section, i.e. a basic segment;
Its theoretical light degree of illuminating L=4.5 Δ k
Δ k represents the brightness adjustment control coefficient, supposes Q=700～2400 o'clock, and Δ k adopts interpolation, when Q 〉=2400, Δ k=1, Q≤700 o'clock, Δ k=0.5/X, thus can push away following Δ k computing formula,
In the 2nd step, obtain the intrinsic brilliance of current period;
Utilize brightness detection instrument in the tunnel to obtain intrinsic brilliance value in the current period: L ';
In the 3rd step, draw the intrinsic brilliance difference ε in the current period:
ε＝L-L’；
Utilize intrinsic brilliance difference ε, brightness is adjusted, make current period intrinsic brilliance level off to theoretical light degree of illuminating L.
2, a kind of road tunnel illumination control method according to claim 1 is characterized in that: described brightness detection instrument carried out reading of a brightness detection and volume of traffic Q in per 10 or 5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100701947A CN101346025B (en) | 2008-08-28 | 2008-08-28 | Road tunnel illumination control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100701947A CN101346025B (en) | 2008-08-28 | 2008-08-28 | Road tunnel illumination control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101346025A true CN101346025A (en) | 2009-01-14 |
| CN101346025B CN101346025B (en) | 2012-01-18 |
Family
ID=40247884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100701947A Expired - Fee Related CN101346025B (en) | 2008-08-28 | 2008-08-28 | Road tunnel illumination control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101346025B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101965085A (en) * | 2010-09-19 | 2011-02-02 | 天津大学 | Feedforward control method for illumination adjustment according to tunnel illumination requirement |
| CN102072450A (en) * | 2010-10-29 | 2011-05-25 | 上海水务建设工程有限公司 | Continuous illumination method for long-distance pipe-jacking construction |
| CN102176799A (en) * | 2011-01-17 | 2011-09-07 | 贵州大学 | Intelligent illuminating method and device for road tunnel |
| CN102271447A (en) * | 2011-06-28 | 2011-12-07 | 江西方兴科技有限公司 | Stepless dimming control method of LED illumination for expressway tunnel |
| CN102300366A (en) * | 2011-06-27 | 2011-12-28 | 丽水市海威光控科技有限公司 | Dual-control-type LED (light emitting diode) tunnel lighting energy-saving controller |
| CN103383708A (en) * | 2013-07-04 | 2013-11-06 | 长安大学 | Highway long-tunnel entrance section daytime illumination optimizing method |
| CN103400198A (en) * | 2013-07-04 | 2013-11-20 | 长安大学 | Night illumination optimization method for long tunnel entrance section of highway |
| CN104034413A (en) * | 2014-07-03 | 2014-09-10 | 武汉中交交通工程有限责任公司 | Method for measuring brightness outside highway tunnel |
| CN104952131A (en) * | 2015-06-19 | 2015-09-30 | 福建星网锐捷通讯股份有限公司 | Method and device for visitor's visit time register of building intercom system |
| CN105101563A (en) * | 2015-08-28 | 2015-11-25 | 张为坚 | Tunnel safety driving lighting system and lighting control method for automobile |
| CN106993363A (en) * | 2017-04-28 | 2017-07-28 | 乐山职业技术学院 | Lighting Control Assembly for vcehicular tunnel |
| CN108174500A (en) * | 2018-01-31 | 2018-06-15 | 长安大学 | Tunnel illumination control system based on self-powered carrier wave wireless dual mode communication |
| CN111083839A (en) * | 2019-12-17 | 2020-04-28 | 斯比夫（西安）照明技术有限公司 | Automatic change bright railway lighting system of regulation |
| WO2020237505A1 (en) * | 2019-05-28 | 2020-12-03 | 深圳大学 | Road lamp flicker effect analysis method and terminal |
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2008
- 2008-08-28 CN CN2008100701947A patent/CN101346025B/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101965085A (en) * | 2010-09-19 | 2011-02-02 | 天津大学 | Feedforward control method for illumination adjustment according to tunnel illumination requirement |
| CN102072450A (en) * | 2010-10-29 | 2011-05-25 | 上海水务建设工程有限公司 | Continuous illumination method for long-distance pipe-jacking construction |
| CN102072450B (en) * | 2010-10-29 | 2013-01-02 | 上海水务建设工程有限公司 | Continuous illumination method for long-distance pipe-jacking construction |
| CN102176799A (en) * | 2011-01-17 | 2011-09-07 | 贵州大学 | Intelligent illuminating method and device for road tunnel |
| CN102300366A (en) * | 2011-06-27 | 2011-12-28 | 丽水市海威光控科技有限公司 | Dual-control-type LED (light emitting diode) tunnel lighting energy-saving controller |
| CN102300366B (en) * | 2011-06-27 | 2013-07-31 | 丽水市海威光控科技有限公司 | Dual-control-type LED (light emitting diode) tunnel lighting energy-saving controller |
| CN102271447A (en) * | 2011-06-28 | 2011-12-07 | 江西方兴科技有限公司 | Stepless dimming control method of LED illumination for expressway tunnel |
| CN102271447B (en) * | 2011-06-28 | 2013-07-03 | 江西方兴科技有限公司 | Stepless dimming control method of LED illumination for expressway tunnel |
| CN103383708A (en) * | 2013-07-04 | 2013-11-06 | 长安大学 | Highway long-tunnel entrance section daytime illumination optimizing method |
| CN103400198A (en) * | 2013-07-04 | 2013-11-20 | 长安大学 | Night illumination optimization method for long tunnel entrance section of highway |
| CN104034413A (en) * | 2014-07-03 | 2014-09-10 | 武汉中交交通工程有限责任公司 | Method for measuring brightness outside highway tunnel |
| CN104952131A (en) * | 2015-06-19 | 2015-09-30 | 福建星网锐捷通讯股份有限公司 | Method and device for visitor's visit time register of building intercom system |
| CN105101563A (en) * | 2015-08-28 | 2015-11-25 | 张为坚 | Tunnel safety driving lighting system and lighting control method for automobile |
| CN105101563B (en) * | 2015-08-28 | 2017-09-19 | 南安市智德机械设备有限公司 | A kind of automobile tunnel safety traffic illuminator and illumination control method |
| CN106993363A (en) * | 2017-04-28 | 2017-07-28 | 乐山职业技术学院 | Lighting Control Assembly for vcehicular tunnel |
| CN108174500A (en) * | 2018-01-31 | 2018-06-15 | 长安大学 | Tunnel illumination control system based on self-powered carrier wave wireless dual mode communication |
| CN108174500B (en) * | 2018-01-31 | 2019-03-19 | 长安大学 | Tunnel illumination control system based on self-powered carrier wave wireless dual mode communication |
| WO2020237505A1 (en) * | 2019-05-28 | 2020-12-03 | 深圳大学 | Road lamp flicker effect analysis method and terminal |
| CN111083839A (en) * | 2019-12-17 | 2020-04-28 | 斯比夫（西安）照明技术有限公司 | Automatic change bright railway lighting system of regulation |
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|---|---|
| CN101346025B (en) | 2012-01-18 |
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