CN201392408Y - Integrated traffic meteorological observation device - Google Patents
Integrated traffic meteorological observation device Download PDFInfo
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- CN201392408Y CN201392408Y CN200920107360U CN200920107360U CN201392408Y CN 201392408 Y CN201392408 Y CN 201392408Y CN 200920107360 U CN200920107360 U CN 200920107360U CN 200920107360 U CN200920107360 U CN 200920107360U CN 201392408 Y CN201392408 Y CN 201392408Y
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Abstract
The utility model discloses an integrated traffic meteorological observation device, which comprises a forward scatter visibility measuring unit, a laser precipitation measuring unit and a control unit, wherein the forward scatter visibility measuring unit and the laser precipitation measuring unit are respectively electrically connected with the control unit. Further, the forward scatter visibility measuring unit comprises an infrared light source transmitter and an optoelectronic receiver which are respectively electrically connected with the control unit, the laser precipitation measuring unit comprises a laser transmitter and an optoelectronic receiver which are respectively electrically connected with the control unit, and the control unit comprises a transmitting driving circuit, a signal collecting circuit, a signal processing circuit and a communication interface and further is connected with an interface of a traffic meteorological monitoring device. The integrated traffic meteorological observation device integrates visibility measurement and meteorological phenomena measurement, and provides interfaces connected with other traffic meteorological monitoring devices, not only can operate independently, but also can be easily collocated into a more complex monitoring station with low cost.
Description
Technical field
The utility model relates to a kind of meteorological observation device, relates in particular to the meteorological Integrated Observation Device of traffic that a kind of integrated forward scattering type visibility measurement and precipitation are measured in real time.
Background technology
Current, weather information has become one of main information that traffic trip need know, and the main weather factor that influences traffic safety is visibility and comprehensive weather information, and people reach by weather phenomenon the understanding of comprehensive weather information.Traffic weather monitoring field mainly is that visibility observation adds other conventional weather monitoring key elements such as wind direction, wind speed, rainfall to the observation of weather phenomenon at present.And the measurement of weather phenomenon is by adding rain sensor on visibility sensor, and cooperates visibility measurement to obtain the weather phenomenon code.Though this metering system can obtain weather information information, kind is few, and measuring accuracy is not enough, can not satisfy the meticulous observation to the road traffic weather phenomenon.
Atmospheric visibility is also referred to as atmospheric optics visibility (MOR), and the main foundation of measurement is to be suspended in the solid in the atmosphere, the atmospheric extinction coefficient (or light attenuation coefficient of atmosphere) that liquid particle causes.Extinction coefficient is the scattering of atmospheric aerosol and molecule and absorption and the decay of the light that causes, and it equals absorption coefficient and scattering coefficient sum.Atmosphere is all very littler than generally with scattering phase to the absorption of light, therefore can be by measuring the limited bulk air to scattering of light coefficient estimation atmospheric extinction coefficient.Limited when light path, in the time of can ignoring atmosphere to the absorption of light, within the specific limits, can think that scattering coefficient and the extinction coefficient surveyed are linear.Scattering coefficient and extinction coefficient are linear, and therefore the size of scattering strength by measuring scattering strength, estimates atmospheric extinction coefficient again by the scattering coefficient decision, and then just can determine the visibility distance of atmosphere.The intensity (extinction coefficient s) that the common Koschmeider of use formula is changed the signal that is received is calculated MOR, MOR in formula (Km)=3/s.
September 13 2006 day for announcing, the patent No. is that 200520104065.7 Chinese patent discloses a kind of " forward scattering transmittance meter ", it is characterized in that comprising transmitter, receiver, control box, microcomputer and power supply, utilize the forward scattering principle, adopt infrared emission light source and electric circuit inspection feedback technique, obtain the visibility measurement result.Its shortcoming is not enough to the measuring accuracy of visibility in the rain, can not connect other traffic weather monitoring equipment interface.
Summary of the invention
The purpose of this utility model is: at the deficiency of prior art existence, new design is a kind of measures on the basis of visibility further integrated precipitation particle size and speed and measures in real time in forward scattering, thereby improve the measuring accuracy of visibility in the rain, and the traffic weather phenomenon that connects other traffic weather monitoring equipment interface Integrated Observation Device is provided.
The technical solution of the utility model is: the meteorological Integrated Observation Device of a kind of traffic, it is characterized in that, comprise forward scattering visibility measurement unit, laser precipitation measuring unit and control module, described forward scattering visibility measurement unit and laser precipitation measuring unit are electrically connected with control module respectively.
Further, described forward scattering visibility measurement unit comprises respectively infrared light supply transmitter and the optoelectronic receiver that is electrically connected with control module, the rayed sampling volume that this infrared light supply transmitter sends, this optoelectronic receiver receive scattered signal and convert thereof into electric signal and deliver to control module and carry out acquisition process.
Described laser precipitation measuring unit comprises respectively generating laser and the photelectric receiver that is electrically connected with control module, this generating laser produces emission level laser beam and passes measured zone, and this photelectric receiver receives laser beam and converts thereof into electric signal and delivers to control module and carry out acquisition process.
Described control module comprises emission driving circuit, signal acquisition circuit, signal processing circuit and communication interface, has also connected traffic weather monitoring equipment interface in addition; Signal processing circuit is connected with other circuit, interface respectively.
The utility model has following advantage compared with the prior art:
1, the utility model is by measuring the size and the speed of precipitation particle diameter, obtain weather information information (weather phenomenon), measure acquisition visibility data by forward scattering, two kinds of measurements integrate can be complementary, by measure in the rain extinction coefficient to forward direction visibility in the rain measurement data proofreaied and correct, thereby improved the measuring accuracy of visibility in the rain.
2, the utility model has been reserved and has been connected other traffic meteorologic survey sensor interface, the sensor of other key elements can be conveniently connected, when guaranteeing and improving measuring accuracy, more complicated monitoring site type can be easy to, be configured at low cost, equipment is light and handy, and is easy for installation.
3, the utility model visibility measurement and weather phenomenon measurement are integrated in one, and weather phenomenon output is more accurate, and kind is more, can provide to concentrate the weather phenomenon code, and these monitoring informations provide convenience for control of traffic and road department and the personnel of driving.
Description of drawings
Fig. 1 is an apparatus structure theory diagram of the present utility model;
Fig. 2 is the structural principle block diagram of forward scattering visibility measurement of the present utility model unit;
Fig. 3 is the structural principle block diagram of laser precipitation measuring unit of the present utility model;
Fig. 4 is the structural principle block diagram of control module of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
With reference to Fig. 1, the meteorological Integrated Observation Device of traffic of the present utility model comprises forward scattering visibility measurement unit, laser precipitation measuring unit and control module, and forward scattering visibility measurement unit and laser precipitation measuring unit are electrically connected with control module respectively.
With reference to Fig. 2, forward scattering visibility measurement of the present utility model unit, comprise respectively the infrared light supply transmitter and the optoelectronic receiver that are electrically connected with control module, the rayed sampling volume that this infrared light supply transmitter sends, this optoelectronic receiver receive scattered signal and convert thereof into electric signal and deliver to control module and carry out acquisition process.
With reference to Fig. 3, laser precipitation measuring unit of the present utility model, comprise respectively the generating laser and the photelectric receiver that are electrically connected with control module, this generating laser produces emission level laser beam and passes measured zone, and this photelectric receiver receives laser beam and converts thereof into electric signal and delivers to control module and carry out acquisition process.
With reference to Fig. 4 control module of the present utility model, comprise the emission driving circuit, signal acquisition circuit, communication interface and the traffic weather monitoring equipment interface that are connected with signal processing circuit respectively.
The utility model in force, it is the infrarede emitting diode LED of 930nm that the infrared light supply transmitter of forward scattering visibility measurement unit can adopt peak wavelength, optoelectronic receiver is the PN photodiode, receiver wavelength range 550～1050nm, the rayed sampling volume that sends when infrared light emitted machine, gas molecule in the sampling volume, solid-state, liquid particles etc. produce scattering to light, scattering angle can adopt 30～33 °, the photodiode that scattered signal enters optoelectronic receiver converts electric signal to and delivers to control module, according to the power of diode received signal, set up getting in touch of forward scattering energy and visibility.The visibility measurement scope 10～5000m of this device, resolution 1m can differentiate mist, mist, dense fog and thick fog.
The generating laser of laser precipitation measuring unit can adopt semiconductor laser diode, and photelectric receiver adopts photodiode.The a branch of horizontal red laser of Single-chip Controlling generating laser emission 650nm passes rainfall area, utilize the delustring measuring principle, optional position in measured zone, when light beam is passed in the landing of precipitation particle, signal can change, the size of the degree of brightness deepening reflection air particle particle diameter is derived decline rate according to the duration of signal.Photelectric receiver is sent into control module after converting the light signal that receives to electric signal, utilize control module signals collecting, the process analysis of treatment circuit inline processed to handle, the basic parameter particle diameter and the speed that obtain measuring, and further derive size distribution, quantity of precipitation, visibility, precipitation kinetic energy and type of precipitation.By qualitative analysis is carried out in rainfall, can obtain the intensity of rainfall or snowfall, distinguish drizzle, heavy rain, hail, snowflake, snowball and various precipitation between snowflake and hail,, draw out the rain spectrogram according to the number of the particle in big minizone of different-grain diameter and friction speed interval.Measurement device particle size range 0.～25mm, particle rapidity scope 0.～20m/s can distinguish 22 kinds of type of precipitation.In addition, also can determine weather phenomenon and type of precipitation, output to registering instrument or computing machine by RS485 interface or RS232 interface according to the weather phenomenon code of the various criterion of storing in the control module storer such as SYNOP/METAR telegraph code etc.
Control module of the present utility model comprises emission driving circuit, signal acquisition circuit and communication interface, has also connected traffic weather monitoring equipment interface in addition, and foregoing circuit, interface are connected with signal processing circuit respectively.Signal processing circuit can adopt the single-chip microcomputer of tape storage, embedded data process software, can store at least 10 width of cloth spectrograms, 720 historical datas, in addition, also storage provides and concentrates the weather phenomenon code, and these monitoring informations provide convenience for control of traffic and road department and the personnel of driving.1 RS485 of single-chip microcomputer output information available communication interfaces, 1 RS232.Emission driving circuit, signal acquisition circuit adopt custom circuit, drive two light emitting diode work respectively, gather the electric signal of two reception diode outputs, send into single-chip microcomputer after changing.Also connect traffic weather monitoring equipment interface in addition, not only can work alone, and can be easy to, be configured at low cost more complicated monitoring site type, can connect meteorological element sensors such as temperature, wind direction, wind speed.
Claims (4)
1, the meteorological Integrated Observation Device of a kind of traffic, it is characterized in that, comprise forward scattering visibility measurement unit, laser precipitation measuring unit and control module, described forward scattering visibility measurement unit, laser precipitation measuring unit are electrically connected with control module respectively.
2, the meteorological Integrated Observation Device of a kind of traffic according to claim 1, it is characterized in that, described forward scattering visibility measurement unit comprises respectively infrared light supply transmitter and the optoelectronic receiver that is electrically connected with control module, the rayed sampling volume that this infrared light supply transmitter sends, this optoelectronic receiver receive scattered signal and convert thereof into electric signal and deliver to control module and carry out acquisition process.
3, the meteorological Integrated Observation Device of a kind of traffic according to claim 1, it is characterized in that, described laser precipitation measuring unit comprises respectively generating laser and the photelectric receiver that is electrically connected with control module, this generating laser produces emission level laser beam and passes measured zone, and this photelectric receiver receives laser beam and converts thereof into electric signal and delivers to control module and carry out acquisition process.
4, the meteorological Integrated Observation Device of a kind of traffic according to claim 1, it is characterized in that, described control module comprises emission driving circuit, signal acquisition circuit, signal processing circuit and communication interface, has also connected traffic weather monitoring equipment interface in addition; Signal processing circuit is connected with other circuit, interface respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920107360U CN201392408Y (en) | 2009-04-16 | 2009-04-16 | Integrated traffic meteorological observation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920107360U CN201392408Y (en) | 2009-04-16 | 2009-04-16 | Integrated traffic meteorological observation device |
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| CN201392408Y true CN201392408Y (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200920107360U Expired - Fee Related CN201392408Y (en) | 2009-04-16 | 2009-04-16 | Integrated traffic meteorological observation device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101957309A (en) * | 2010-08-17 | 2011-01-26 | 招商局重庆交通科研设计院有限公司 | All-weather video measurement method for visibility |
| CN108535793A (en) * | 2018-06-14 | 2018-09-14 | 安徽省大气探测技术保障中心 | A kind of monitoring of highway communication meteorological condition and warning system |
| CN109281261A (en) * | 2018-10-23 | 2019-01-29 | 武汉东湖大数据交易中心股份有限公司 | A kind of traffic indication system based on road environment remote adjustment |
| CN111077598A (en) * | 2019-12-31 | 2020-04-28 | 中国科学院、水利部成都山地灾害与环境研究所 | Snowfall volume sensor and real-time supervision early warning device based on infrared laser |
| CN111487170A (en) * | 2020-03-23 | 2020-08-04 | 中国人民解放军空军研究院战场环境研究所 | Intelligent front-scattering visibility meter and intelligent front-scattering visibility measuring method |
-
2009
- 2009-04-16 CN CN200920107360U patent/CN201392408Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101957309A (en) * | 2010-08-17 | 2011-01-26 | 招商局重庆交通科研设计院有限公司 | All-weather video measurement method for visibility |
| CN101957309B (en) * | 2010-08-17 | 2012-11-07 | 招商局重庆交通科研设计院有限公司 | All-weather video measurement method for visibility |
| CN108535793A (en) * | 2018-06-14 | 2018-09-14 | 安徽省大气探测技术保障中心 | A kind of monitoring of highway communication meteorological condition and warning system |
| CN108535793B (en) * | 2018-06-14 | 2023-09-26 | 安徽省大气探测技术保障中心 | Highway traffic meteorological condition monitoring and warning system |
| CN109281261A (en) * | 2018-10-23 | 2019-01-29 | 武汉东湖大数据交易中心股份有限公司 | A kind of traffic indication system based on road environment remote adjustment |
| CN111077598A (en) * | 2019-12-31 | 2020-04-28 | 中国科学院、水利部成都山地灾害与环境研究所 | Snowfall volume sensor and real-time supervision early warning device based on infrared laser |
| CN111487170A (en) * | 2020-03-23 | 2020-08-04 | 中国人民解放军空军研究院战场环境研究所 | Intelligent front-scattering visibility meter and intelligent front-scattering visibility measuring method |
| CN111487170B (en) * | 2020-03-23 | 2023-04-14 | 中国人民解放军空军研究院战场环境研究所 | Intelligent front-scattering visibility meter and intelligent front-scattering visibility measuring method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20150416 |
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| EXPY | Termination of patent right or utility model |