CN108519125A - tunnel monitoring system - Google Patents
tunnel monitoring system Download PDFInfo
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- CN108519125A CN108519125A CN201810336634.2A CN201810336634A CN108519125A CN 108519125 A CN108519125 A CN 108519125A CN 201810336634 A CN201810336634 A CN 201810336634A CN 108519125 A CN108519125 A CN 108519125A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
Abstract
The invention discloses tunnel monitoring systems, including environment acquisition system, illumination light adjusting system, visibility detection system, video monitoring system and master control set；Environment acquisition system, illumination light adjusting system, visibility detection system, video monitoring system are connected with master control set by fiber optic network；Environment acquisition system acquires the environmental information outside Tunnel；Illuminate the light modulation that light adjusting system is used for tunnel illumination lamps and lanterns；Visibility detection system is to measure the visual range driven a vehicle in tunnel；Video monitoring system includes that vehicle flowrate is checked and accident monitoring；Master control set includes storage, judgement, the processing to data；It is that a safety, comfortable luminous environment are built in tunnel the present invention provides one kind, keeps communications and transportation more efficient, reduce the consumption of electric energy, reduce the tunnel monitoring system of traffic accident.
Description
Technical field
The present invention relates to tunnel fields, more specifically, it is related to tunnel monitoring system.
Background technology
Intelligent transportation is the much-talked-about topic of current transportation, and vcehicular tunnel is the particular surroundings on traffic route, is deposited
The problems such as narrow space, environment are closed, light is inadequate, difference is big inside and outside hole, weight of the vcehicular tunnel as communications and transportation
It forms, intelligence also contributes to ten million traveler.2016 year traffic carrier statistical communique of developments show that China is public
Road tunnel is at 15181,1403.97 myriametres, increases at 1175,135.58 myriametres, wherein at super long tunnel 815,362.27 ten thousand
Rice, at long tunnel 3520,604.55 myriametres.In the operation of conventional high rate vcehicular tunnel, no matter Changes in weather, no matter vehicle flowrate
Size, tunnel illuminating lamp are always to maintain the state of being always on, this necessarily causes the waste of electric energy.Simultaneously as difference inside and outside Tunnel
Traffic accident rate is far above during larger luminous environment and Self-Closing, narrow special road environment cause tunnel to be driven a vehicle
Other common roads.
Although a large amount of researcher proposes many schemes to the design of tunnel management, still remains some and ask
Topic：(1) needs gone on a journey according to people, automobile quantity gradually increase, however tunnel management system design does not consider that vehicle flowrate increases
It is long；(2) design standard of each place vcehicular tunnel is different, and design parameter is difficult to unification；(3) the western and eastern's development gap is big, causes
Tunneled network basis is unbalanced；(4) tunnel illumination control system degree of intelligence is not high, and control is unreasonable, and the degree of automation needs
Reinforce；(5) economic weak regional tunnel intelligent management transformation is difficult.
Invention content
The present invention overcomes the deficiencies in the prior art, and it is that a safety, comfortable luminous environment are built in tunnel to provide a kind of,
Keep communications and transportation more efficient, reduce the consumption of electric energy, reduces the tunnel monitoring system of traffic accident.
Technical scheme is as follows：
Tunnel monitoring system, including environment acquisition system, illumination light adjusting system, visibility detection system, video monitoring system
System and master control set；Environment acquisition system, illumination light adjusting system, visibility detection system, video monitoring system and master control set
It is connected by fiber optic network；Environment acquisition system acquires the environmental information outside Tunnel, including bright outside luminous environment information hole
Degree and colour temperature, and transmit this information to master control set；Illuminate the light modulation that light adjusting system is used for tunnel illumination lamps and lanterns comprising adjust
CD-ROM drive movement controller and color temperature lamps and lanterns are distributed the different sections being arranged in tunnel, and dimming driver individual reception master control
The dimmer command information of device, the color temperature lamps and lanterns for controlling this section of region realize non-pole light regulating, while detecting the electricity of lamp circuit
Stream, and feed back to master control set；Visibility detection system is to measure the visual range driven a vehicle in tunnel, is the vcehicular tunnel big greasy weather
Gas, extreme anomalous weather provide warning information；Video monitoring system includes that vehicle flowrate is checked and accident monitoring；Master control set includes
Storage, judgement, processing to data.
Further, environment acquisition system includes central processing unit, luminosity sensor, color sensor, temperature and humidity sensing
Device, GPS sensor and power module, luminosity sensor, color sensor, Temperature Humidity Sensor, GPS sensor, power module
It is electrically connected with the central processing unit, and is controlled by it；Luminosity sensor uses time of measuring for 120ms, resolution ratio 1lx, light
The clock signal and data-signal for spending sensor are connected with B8, B9 pin of central processing unit respectively；Color sensor includes
The electric current of photodiode is converted to digital signal by four parallel A/D converters, the initializing signal of color sensor,
Data-signal and clock signal are connected with B11, B12, B13 pin of central processing unit respectively；Temperature Humidity Sensor acquires ring
Temperature, humidity, dew point value in border use temperature detection valid interval for -40 DEG C~100 DEG C, and detection resolution is 0.01 DEG C,
The detection valid interval of humidity is 0%RH~100%RH, and accuracy of detection is the Temperature Humidity Sensor of 0.04%RH, the humiture
The clock signal of sensor, data-signal are connected with B6, B7 pin of central processing unit respectively；GPS sensor uses voltage
3.3V, maximum 5V comprising antenna detection and antenna short circuit protection module, antenna gain maximum 30dB, positioning accuracy is up to 2.5
Rice, the pulse signal of the GPS sensor, data reception signal and send signal respectively with A1, A2, A3 pin of central processing unit
It is connected.
Further, power module includes control chip U1, control chip U2, transformer P1 and capacitance；Transformer P1's
Input terminal connects 12V voltages, the 1st pin of transformer P1 and one end of capacitance C6, one end of capacitance C7, control chip U2 the
2 pins are grounded together, and the 2nd pin of transformer P1 is connect with the 1st pin of the other end of capacitance C6, control chip U2, is controlled
The 3rd pin of chip U2 is connect with the 1st pin of the other end of capacitance C7, control chip U1, and as 5V voltage output ends；Control
The 2nd pin of coremaking piece U1 is grounded together with one end of capacitance C3, and the 3rd pin of control chip U1 connects with the other end of capacitance C3
It connects, and as 3V voltage output ends.
Further, aluminum radiating block is arranged in the lower section of power module.
Further, light modulation drive control device includes light modulation chip U3, light modulation chip U4, interface chip P3 and interface chip
P5, wherein the 2nd pin of light modulation chip U3 is connect with one end of one end of resistance R1, resistance R3, the other end of resistance R1 with connect
The 1st pin connection of mouth chip P5, the other end ground connection of resistance R3, the 3rd pin of light modulation chip U3 and one end, the electricity of resistance R5
Hold one end connection of C1, the other end of resistance R5 is connect with one end of resistance R7, and one as PWM adjusts output end, adjusts
The 4th pin of optical chip U3, the other end ground connection of the other end of capacitance C1, resistance R7, the 5th pin and interface of light modulation chip U3
The 1st pin of chip P3 connects, and the 6th pin of light modulation chip U3 is connect with the 4th pin of interface chip P3, light modulation chip U4's
5th pin is connect with the 3rd pin with interface chip P3, and the connection of remaining pin is identical as light modulation chip U3's.
Further, tunnel illumination lamps and lanterns use the LED lamp of color temperature, and degree of protection is not less than IP65；Visibility
Detecting system uses visibility detector, and video monitoring system uses web camera, and installation, communication side are segmented in tunnel
Formula uses RS485 or RJ45 twisted-pair feeders, wherein logical when length of tunnel is more than 1km communicated using optical fiber ring network.
Further, master control set includes to the regulation and control of tunnel portal section, changeover portion regulation and control, interlude light modulation, outlet section tune
Light and dimming interval；Master control set is examined by the vehicle speed per hour of Tunnel Design according to environment acquisition system, visibility detection system
The corresponding information measured makes dim command signal and is transferred to illumination light adjusting system, carries out segmentation adjustment.
Further, entrance regulation and control include two illumination stages of TH1, TH2, and the brightness conversion method of Lian Geduan is as follows：
Lth1=kxL20 (S) formula (1)
Lth2=0.5x kxL20 (S) formula (2)
Wherein Lth1 represents the brightness of entrance TH1；Lth2 represents the brightness of entrance TH2, and L20 (S) represents bright outside hole
Degree, unit cd/m2；K represents reduction coefficient；And tunnel light modulation is divided into outside tunnel colour temperature daytime and is less than 6000K and tunnel
Outer colour temperature is converted respectively higher than two kinds of situations of 6000K；
Changeover portion regulation and control are divided into 3 three changeover portion 1, changeover portion 2, changeover portion illumination stages, brightness by gradual change principle of successively decreasing
Ratio presses 3:1 regulation and control, changeover portion colour temperature is consistent with entrance colour temperature, and the light modulation of reduce brightness, night is identical as entrance.
Further, interlude dims, and daytime, tunnel interlude used the lamps and lanterns of 6000K colour temperatures, night interlude to use
The lamps and lanterns of 4000K colour temperatures；Outlet section dims, and daytime, tunnel outlet section luminous environment with interlude used identical colour temperature, and night goes out
The illumination of mouth section should be arranged consistent with interlude；Outlet section is divided into 2 two outlet section 1, outlet section illumination stages, is taken per segment length
30m, corresponding brightness should convert as follows：
Lex1=3 × Lin formula (3)
Lex2=5 × Lin formula (4)
Wherein Lin represents interlude light modulation brightness value.
Further, dimming interval 5min, i.e., identified per 5min light adjusting systems a tunnel outer reticle circle border colour temperature with it is bright
Angle value, such as meets control condition, and master control set understands lamps and lanterns colour temperature and brightness in auto-control hole.
Advantage is the present invention compared with prior art：The present invention is applied in tunnel relevant device, improves the letter in tunnel
Breathization manages, and keeps tunnel management easier, more reliable.Tunnel outer reticle circle border is accurately acquired by embedded device, and is led to
Data between the communication network transmission equipment of excessive rate so that administrator can be more clear, it is bright outside hole intuitively to obtain
The variation of degree, colour temperature, and corresponding dimming strategies are made according to the real-time change information of luminous environment, accurately and reliably adjust control
The illuminator of difference segment in tunnel processed, realizes automatic non-pole light regulating；Using highly reliable network transmission, tunnel management center
Administrator can check the road traffic information of network camera acquisition in tunnel, vehicular movement situation, to tunnel traffic vehicle
Carry out positive early warning induction.It can increase according to the specific requirements of tunnel operation and extend other accurately equipment and instruments simultaneously, from
And truly realize tunnel intelligent management.The main purpose of vcehicular tunnel intelligent management is to provide a peace for tunnel
Entirely, environment efficiently, comfortably, economic saves power consumption to greatest extent under the premise of ensureing safety with traffic efficiency, real
Now more equipment interconnect, are managed collectively.
The present invention can automatically adjust lamps and lanterns according to hole external environment, control unnecessary " full night highlight illumination ", effectively
Save power consumption.By video monitoring system, the intuitive luminous environment information reflected inside and outside tunnel, climatic environment information, lamps and lanterns
Exception information.Important function has been played to the positive induction of the detection of tunnel environment, driving conditions simultaneously.And it is directed to ring
Border changes the dimming strategies of formulation science, and the other equipments such as visibility detector, web camera of arranging in pairs or groups, by the light in tunnel
Fine loop network realizes that the transmission of equipment room signal, the judgement of data processing provide accurate data.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of the environment acquisition system of the present invention；
Fig. 3 is the circuit diagram of the environment acquisition system of the present invention；
Fig. 4 is the circuit diagram of the light modulation drive control device of the present invention.
Specific implementation mode
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 4, tunnel monitoring system, including environment acquisition system, illumination light adjusting system, visibility detection
System, video monitoring system and master control set.Environment acquisition system, illumination light adjusting system, visibility detection system, video monitoring
System is connected with master control set by fiber optic network.
Environment acquisition system acquires the environmental information outside Tunnel, including luminous environment information the luminance of outer caves and colour temperature,
And transmit this information to master control set.Further include climatic environment, such as humiture；Geography information, such as longitude and latitude, wherein outside hole
Brightness and colour temperature are dimming strategies mainly in accordance with parameter.
Specific environment acquisition system include central processing unit, luminosity sensor, color sensor, Temperature Humidity Sensor,
GPS sensor and power module, luminosity sensor, color sensor, Temperature Humidity Sensor, GPS sensor, power module are in
Central processor is electrically connected, and is controlled by it；Luminosity sensor uses time of measuring for 120ms, resolution ratio 1lx, and luminosity passes
The clock signal and data-signal of sensor are connected with B8, B9 pin of central processing unit respectively；Color sensor includes four
The electric current of photodiode is converted to digital signal, the initializing signal of color sensor, data by parallel A/D converter
Signal and clock signal are connected with B11, B12, B13 pin of central processing unit respectively；Temperature Humidity Sensor acquires in environment
Temperature, humidity, dew point value, use temperature detection valid interval for -40 DEG C~100 DEG C, detection resolution is 0.01 DEG C, humidity
Detection valid interval be 0%RH~100%RH, accuracy of detection be 0.04%RH Temperature Humidity Sensor, the temperature and humidity sensing
The clock signal of device, data-signal are connected with B6, B7 pin of central processing unit respectively；GPS sensor uses voltage 3.3V,
Maximum 5V comprising antenna detection and antenna short circuit protection module, antenna gain maximum 30dB, positioning accuracy, should up to 2.5 meters
Pulse signal, data reception signal and the transmission signal of GPS sensor are connected with A1, A2, A3 pin of central processing unit respectively
It connects.Wherein, luminosity sensor, color sensor and Temperature Humidity Sensor are communicated by iic bus with central processing unit, and GPS is passed
Sensor passes through serial communication.The communication transmission module of central processing unit includes that the two kinds of communications of Ethernet RJ45 and RS485 bus connect
Mouthful, the communication mode of optical fiber ring network is selected in this programme, therefore RJ45 interface ethernet lines need to be connect with far-end optical transceiver.
Short tunnel or the tunnel for not having fiber optic communication condition may be selected RS485 bus communications, therefore by RS485 interfaces as alternatively connecing
Mouthful.
Power module includes control chip U1, control chip U2, transformer P1 and capacitance；The input terminal of transformer P1 connects
12V voltages, the 1st pin of transformer P1 and one end of capacitance C6, one end of capacitance C7, control chip U2 the 2nd pin together with
Ground connection, the 2nd pin of transformer P1 are connect with the 1st pin of the other end of capacitance C6, control chip U2, control the of chip U2
3 pins are connect with the 1st pin of the other end of capacitance C7, control chip U1, and as 5V voltage output ends；Control chip U1's
2nd pin is grounded together with one end of capacitance C3, and the 3rd pin of control chip U1 is connect with the other end of capacitance C3, and conduct
3V voltage output ends.When only design 12V drop 3.3V voltage conversion circuit, in entire circuit chip and sensor power supply
When, there is the case where circuit abnormality overheat in the later stage tests, is because 3.3V loads are more, electric current is excessive.Therefore 5V is added
Conversion power supply, and aluminum radiating block is set in the lower section of power module, to adapt to various power supply stabilization circuits, reaches output and stablize
Property good, output overcurrent, overheat automatic protection.
Illuminate the light modulation that light adjusting system is used for tunnel illumination lamps and lanterns comprising light modulation drive control device and color temperature lamps and lanterns,
It is distributed the different sections being arranged in tunnel, and the dimmer command information of dimming driver individual reception master control set, control is originally
The color temperature lamps and lanterns in section region realize non-pole light regulating, while detecting the electric current of lamp circuit, and feed back to master control set.
It includes light modulation chip U3, light modulation chip U4, interface chip P3 and interface chip P5 to dim drive control device, wherein adjusting
The 2nd pin of optical chip U3 is connect with one end of one end of resistance R1, resistance R3, and the other end of resistance R1 is with interface chip P5's
1st pin connects, the other end ground connection of resistance R3, the 3rd pin and one end of resistance R5, one end of capacitance C1 of light modulation chip U3
Connection, the other end of resistance R5 are connect with one end of resistance R7, and one as PWM adjusts output end, light modulation chip U3's
The other end ground connection of 4th pin, the other end of capacitance C1, resistance R7, the of the 5th pin of light modulation chip U3 and interface chip P3
1 pin connects, and the 6th pin of light modulation chip U3 connect with the 4th pin of interface chip P3, dim chip U4 the 5th pin and
It is connect with the 3rd pin of interface chip P3, the connection of remaining pin is identical as light modulation chip U3's.What two light modulation chips exported
Pwm signal have passed through resistance R3, and capacitance C1 is filtered into direct current signal, be convenient for the adjustment effect of PWM.
Color temperature lamps and lanterns have current detection function, and the operating current of lamps and lanterns is currently accessed by Current Mutual Inductance detection,
Monitor whether current lamps and lanterns are working properly.Into difference amplifier amplification, biasing excessively, the Current Voltage being sent into inside central processing unit
Digital information is sampled.Central processing unit filters the processing of current acquisition data using the software of the way of median average filter
Wave mode takes a maximum value, continuous value 20 to be approximately considered 1s, 20 values is ranked up per 50ms, remove two
Maximum value and two minimum values take remaining 16 arithmetic equal values as the peak-to-peak value of sampled voltage in the 1s.Finally by peak peak
Then divided by sampling resistor value is converted into virtual value, obtains current effective value in 1s.It will when current effective value is more than predetermined value
It can carry out open circuit protection.
Preferably, tunnel illumination lamps and lanterns use the LED lamp of color temperature, and degree of protection is not less than IP65；Visibility
Detecting system uses visibility detector, and video monitoring system uses web camera, and installation, communication side are segmented in tunnel
Formula uses RS485 or RJ45 twisted-pair feeders, wherein logical when length of tunnel is more than 1km communicated using optical fiber ring network.
Visibility detection system is to measure the visual range driven a vehicle in tunnel, is vcehicular tunnel foggy weather, extreme abnormal
Weather provides warning information.It includes that can identify precipitation, snowfall type, and can the functions such as pinch-reflex ion diode amount.
Video monitoring system includes that vehicle flowrate is checked and accident monitoring.Design grade, operation need that can also be according to tunnel
Realistic existing different function, such as Car license recognition, vehicle flowrate are checked, fire is alarmed, accident monitors.In order to realize that whole day 24 is small
When monitor driving conditions and surface conditions in tunnel in real time, need the segmentation installation web camera in tunnel.Both may be used in this way
To provide security protection guarantee, and tunnel management person is facilitated to carry out traffic guidance, dangerous situation monitoring etc..The requirement of networking is wherein communicated,
RS485 or RJ45 twisted-pair feeders are generally selected in intelligentized tunnel communication modes, for long tunnel usually using optical fiber ring network, are taken the photograph
The selection of camera will meet its coffret according to specific tunnel environment, generally install high definition in the inlet in tunnel and exit
Camera, it is therefore an objective to meet capture driving vehicle license plate needs the most section in the centre in tunnel is only needed to pacify
General SD camera is filled, and video camera will meet water proof and dust proof, long working life, support a variety of data transmission associations as far as possible
View.
Master control set includes storage, judgement, the processing to data, externally provides friendly interactive interface, shows tunnel ring
Border parameter information allows administrator to send order etc. manually.Tunnel scene industrial personal computer passes through router, optical transmitter and receiver, fiber optic loop
Net realizes data transmission with each subsystem terminal equipment.
Master control set includes between the regulation and control of tunnel portal section, changeover portion regulation and control, interlude light modulation, outlet section light modulation and light modulation
Every；Master control set is detected corresponding by the vehicle speed per hour of Tunnel Design according to environment acquisition system, visibility detection system
Information makes dim command signal and is transferred to illumination light adjusting system, carries out segmentation adjustment.
(1) entrance regulates and controls standard
Entrance regulation and control include two illumination stages of TH1, TH2, and the brightness conversion method of Lian Geduan is as follows：
Lth1=kxL20 (S) formula (1)
Lth2=0.5*kxL20 (S) formula (2)
In formula：Lth1 represents the brightness of entrance TH1；Lth2 represents the brightness of entrance TH2, and L20 (S) represents bright outside hole
Degree, unit cd/m2；K represents reduction coefficient；And tunnel light modulation is divided into colour temperature outside tunnel and is less than 6000K and tunnel exogenic color
Temperature is higher than two kinds of situations of 6000K；On daytime, when colour temperature is less than 6000K outside tunnel, entrance dims reference table 1；Colour temperature outside tunnel
Higher than 6000K, reference table 2 is dimmed, night dims standard with reference to the data in table 3, and " A " represents L20 (S) wherein in table, i.e.,
It is bright outside hole.
Table 1
Table 2
Table 3
(2) changeover portion regulates and controls standard
Changeover portion is preferably divided into changeover portion 1 (TR1), changeover portion 2 (TR2), changeover portion 3 (TR3) three by gradual change principle of successively decreasing
A illumination stage, brightness ratio press 3:1 regulation and control, following table 4 provide corresponding data.Lth1 is entrance first segment brightness in table,
Ltr1, Ltr2, Ltr3 respectively represent TR1, TR2, TR3 brightness.
Changeover portion colour temperature is consistent with entrance colour temperature, and only brightness reduces.The light modulation principle at night is identical as entrance.
| Illumination stage | TR1 | TR2 | TR3 |
| Brightness | Ltr1=0.15Lth1 | Ltr2=0.05Lth1 | Ltr3=0.02Lth1 |
Table 4
(3) interlude dims principle
Daytime, the lamps and lanterns of 6000K colour temperatures can be used in tunnel interlude, and the reference of brightness value is given in Table 5；Among night
Duan Yi uses the illumination of 4000K colour temperatures, luminance standard to be given in Table 6.
Table 5
Table 6
(4) outlet section dims principle
Daytime tunnel outlet section luminous environment with interlude use identical colour temperature, outlet section be divided into outlet section 1 (EX1),
Two illumination stages of outlet section 2 (EX2) take 30m, corresponding brightness that should be calculated as follows per segment length,
Lex1=3 × Lin formula (3)
Lex2=5 × Lin formula (4)
Wherein Lin represents interlude light modulation brightness value.Brightness control standard is as shown in table 7 and table 8.Night outlet section illuminates
It should be arranged unanimously with interlude, be shown in Table 9.
Table 7
Table 8
Table 9
(5) dimming interval standard
The luminance of outer caves colour temperature is popped one's head in be easy to cause communication line obstruction to the acquisition time interval of the luminance of outer caves less than 5min,
Normal communication is seriously affected, time interval is more than 5 minutes, and acquisition numerical value and the luminance of outer caves of brightness colour temperature probe change actual number
Value difference is larger, influences the accuracy of light modulation, to the traffic safety and riding comfort of the driving of driver there are strong influence, light in tunnel
Environmental change excessively frequently can cause driver's eyes uncomfortable, in summary continually changing luminous environment outside each factor and tunnel
It is divided into 5min between determining between tunnel light modulation, i.e., identifies a tunnel outer reticle circle border colour temperature and brightness value per 5min light adjusting systems, such as
Meet control condition, management software understands lamps and lanterns colour temperature and brightness in auto-control hole.To avoid communication line obstruction from making communication
At influence, according to actual conditions it is contemplated that dimming time interval is adjusted to 5~15min, as possible close to 5min.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, without departing from the inventive concept of the premise, can also make several improvements and modifications, these improvements and modifications also should be regarded as
In the scope of the present invention.
Claims (10)
1. tunnel monitoring system, which is characterized in that including environment acquisition system, illumination light adjusting system, visibility detection system, regard
Frequency monitoring system and master control set；Environment acquisition system, illumination light adjusting system, visibility detection system, video monitoring system and
Master control set is connected by fiber optic network；Environment acquisition system acquires the environmental information outside Tunnel, believes including luminous environment
The luminance of outer caves and colour temperature are ceased, and transmits this information to master control set；The light modulation that light adjusting system is used for tunnel illumination lamps and lanterns is illuminated,
It includes light modulation drive control device and color temperature lamps and lanterns, is distributed the different sections being arranged in tunnel, and dimming driver is independent
The dimmer command information for receiving master control set, the color temperature lamps and lanterns for controlling this section of region realize non-pole light regulating, while detecting lamps and lanterns
The electric current of circuit, and feed back to master control set；Visibility detection system is to measure the visual range driven a vehicle in tunnel, is highway tunnel
Road foggy weather, extreme anomalous weather provide warning information；Video monitoring system includes that vehicle flowrate is checked and accident monitoring；Master control
Device includes storage, judgement, the processing to data.
2. tunnel monitoring system according to claim 1, it is characterised in that：Environment acquisition system include central processing unit,
Luminosity sensor, color sensor, Temperature Humidity Sensor, GPS sensor and power module, luminosity sensor, color sensor,
Temperature Humidity Sensor, GPS sensor, power module are electrically connected with the central processing unit, and are controlled by it；Luminosity sensor uses
Time of measuring is 120ms, resolution ratio 1lx, the clock signal and data-signal of luminosity sensor respectively with central processing unit
B8, B9 pin are connected；Color sensor includes four parallel A/D converters, and the electric current of photodiode is converted to number
Word signal, initializing signal, data-signal and the clock signal of color sensor respectively with B11, B12, B13 of central processing unit
Pin is connected；Temperature Humidity Sensor acquires temperature, humidity, dew point value in environment, uses temperature detection valid interval for -40
DEG C~100 DEG C, detection resolution is 0.01 DEG C, and the detection valid interval of humidity is 0%RH~100%RH, and accuracy of detection is
The Temperature Humidity Sensor of 0.04%RH, the clock signal of the Temperature Humidity Sensor, data-signal respectively with the B6 of central processing unit,
B7 pins are connected；GPS sensor uses voltage 3.3V, maximum 5V comprising antenna detection and antenna short circuit protection module, day
Line gain maximum 30dB, up to 2.5 meters, pulse signal, data reception signal and the transmission signal of the GPS sensor divide positioning accuracy
It is not connected with A1, A2, A3 pin of central processing unit.
3. tunnel monitoring system according to claim 2, it is characterised in that：Power module includes control chip U1, control
Chip U2, transformer P1 and capacitance；The input terminal of transformer P1 connects 12V voltages, and the 1st pin of transformer P1 is with capacitance C6's
One end, one end of capacitance C7, control chip U2 the 2nd pin be grounded together, the 2nd pin of transformer P1 is another with capacitance C6's
The 1st pin connection at end, control chip U2, the 3rd pin of control chip U2 and the other end of capacitance C7, control chip U1 the
1 pin connects, and as 5V voltage output ends；The 2nd pin of control chip U1 is grounded together with one end of capacitance C3, controls core
The 3rd pin of piece U1 is connect with the other end of capacitance C3, and as 3V voltage output ends.
4. tunnel monitoring system according to claim 3, it is characterised in that：The lower section setting aluminum of power module radiates
Block.
5. tunnel monitoring system according to claim 1, it is characterised in that：It includes light modulation chip to dim drive control device
U3, light modulation chip U4, interface chip P3 and interface chip P5, wherein one end, the electricity of the 2nd pin of light modulation chip U3 and resistance R1
One end connection of R3 is hindered, the other end of resistance R1 is connect with the 1st pin of interface chip P5, and the other end ground connection of resistance R3 is adjusted
The 3rd pin of optical chip U3 is connect with one end of one end of resistance R5, capacitance C1, one end of the other end and resistance R7 of resistance R5
Connection, and output end is adjusted as one of PWM, the 4th pin of light modulation chip U3, the other end of capacitance C1, resistance R7 it is another
One end is grounded, and the 5th pin of light modulation chip U3 is connect with the 1st pin of interface chip P3, is dimmed the 6th pin of chip U3 and is connect
The 4th pin connection of mouth chip P3, the 5th pin of light modulation chip U4 are connect with the 3rd pin with interface chip P3, remaining pin
It connects identical with light modulation chip U3.
6. tunnel monitoring system according to claim 1, it is characterised in that：Tunnel illumination lamps and lanterns use the LED of color temperature
Lamps and lanterns, and degree of protection is not less than IP65；Visibility detection system uses visibility detector, video monitoring system to use network
Video camera, and installation is segmented in tunnel, communication modes use RS485 or RJ45 twisted-pair feeders, wherein when length of tunnel is more than 1km
When logical communicated using optical fiber ring network.
7. tunnel monitoring system according to claim 1, it is characterised in that：Master control set includes to tunnel portal section tune
Control, changeover portion regulation and control, interlude light modulation, outlet section light modulation and dimming interval；Master control set by the vehicle speed per hour of Tunnel Design,
According to the corresponding information that environment acquisition system, visibility detection system detect, makes dim command signal and be transferred to illumination
Light adjusting system carries out segmentation adjustment.
8. tunnel monitoring system according to claim 7, it is characterised in that：Entrance regulation and control include two photographs of TH1, TH2
Bright section, the brightness conversion method of Lian Geduan is as follows：
Lth1=kxL20 (S) formula (1)
Lth2=0.5x kxL20 (S) formula (2)
Wherein Lth1 represents the brightness of entrance TH1；Lth2 represents the brightness of entrance TH2, and L20 (S) represents the luminance of outer caves, single
Position is cd/m2；K represents reduction coefficient；And tunnel light modulation is divided into outside tunnel colour temperature less than colour temperature outside 6000K and tunnel daytime
It is converted respectively higher than two kinds of situations of 6000K；
Changeover portion regulation and control are divided into 3 three changeover portion 1, changeover portion 2, changeover portion illumination stages, brightness ratio by gradual change principle of successively decreasing
By 3:1 regulation and control, changeover portion colour temperature is consistent with entrance colour temperature, and the light modulation of reduce brightness, night is identical as entrance.
9. tunnel monitoring system according to claim 7 or 8, it is characterised in that：Interlude dim, daytime tunnel interlude
Using the lamps and lanterns of 6000K colour temperatures, night interlude uses the lamps and lanterns of 4000K colour temperatures；Outlet section dim, daytime tunnel outlet section light
Environment uses identical colour temperature, the illumination of night outlet section that should be arranged with interlude consistent with interlude；Outlet section is divided into outlet
2 two section 1, outlet section illumination stages take 30m, corresponding brightness that should convert as follows per segment length：
Lex1=3 × Lin formula (3)
Lex2=5 × Lin formula (4)
Wherein Lin represents interlude light modulation brightness value.
10. tunnel monitoring system according to claim 7, it is characterised in that：Dimming interval is 5min, i.e., is dimmed per 5min
Tunnel outer reticle circle border colour temperature of system identification and brightness value, such as meet control condition, and master control set understands lamp in auto-control hole
Has colour temperature and brightness.
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| CN201810336634.2A CN108519125A (en) | 2018-04-16 | 2018-04-16 | tunnel monitoring system |
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| CN201810336634.2A CN108519125A (en) | 2018-04-16 | 2018-04-16 | tunnel monitoring system |
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Application publication date: 20180911 |