Visibility sensor txheej txheem cej luam
Raws li cov cuab yeej tseem ceeb ntawm kev saib xyuas ib puag ncig niaj hnub no, cov kev pom kev pom kev ntsuas atmospheric transmittance nyob rau lub sijhawm tiag tiag los ntawm cov qauv siv hluav taws xob thiab muab cov ntaub ntawv tseem ceeb rau huab cua rau ntau yam lag luam. Peb lub ntsiab kev daws teeb meem yog kis tau tus mob (tus qauv hauv paus), tawg (rau pem hauv ntej / rov qab scattering) thiab pom kev pom. Ntawm lawv, hom kev faib tawm pem hauv ntej occupies lub lag luam tseem ceeb nrog nws cov nqi ua haujlwm siab. Cov khoom siv xws li Vaisala FD70 series tuaj yeem kuaj pom kev hloov pauv hauv thaj tsam ntawm 10m txog 50km nrog qhov tseeb ntawm ± 10%. Nws yog nruab nrog RS485 / Modbus interface thiab tuaj yeem hloov mus rau qhov chaw hnyav ntawm -40 ℃ to +60 ℃.
Core technical parameters
Optical qhov rais tus kheej tu qhov system (xws li ultrasonic vibration plua plav tshem tawm)
Multi-channel spectral tsom xam tshuab (850nm / 550nm dual wavelength)
Dynamic them algorithm (kub thiab av noo sib cuam tshuam kev kho)
Cov ntaub ntawv sampling zaus: 1Hz ~ 0.1Hz adjustable
Kev siv hluav taws xob zoo: <2W (12VDC fais fab mov)
Kev lag luam thov rooj plaub
1. Intelligent tsheb thauj mus los
Highway ceeb toom ntxov network
Lub visibility saib xyuas network tau xa mus rau ntawm Shanghai-Nanjing Expressway deploy sensor nodes txhua txhua 2km nyob rau hauv seem uas muaj xwm txheej huab cua. Thaum pom kev yog <200m, qhov kev txwv ceev ceev ntawm lub rooj tsav xwm cov ntaub ntawv (120 → 80km / h) tau ua tiav, thiab thaum pom qhov pom tau <50m, qhov chaw nres tsheb tus xov tooj nkag raug kaw. Lub kaw lus txo qhov nruab nrab txhua xyoo kev sib tsoo ntawm ntu no los ntawm 37%.
2. Kev saib xyuas lub tshav dav hlau khiav
Beijing Daxing International Tshav Dav Hlau siv triple redundant sensor array los tsim cov ntaub ntawv khiav qhov pom (RVR) hauv lub sijhawm. Ua ke nrog ILS cov cuab yeej tsaws, Cov txheej txheem III qhov muag tsis pom kev tsaws yog pib thaum RVR <550m, kom ntseeg tau tias lub sijhawm ya davhlau tau nce los ntawm 25%.
Kev siv tshiab ntawm kev saib xyuas ib puag ncig
1. Lub nroog muaj kuab paug taug qab
Shenzhen Environmental Protection Bureau teeb tsa qhov pom kev pom-PM2.5 qhov chaw saib xyuas kev sib koom ua ke ntawm National Highway 107, thim rov qab aerosol extinction coefficient los ntawm kev pom, thiab tsim kom muaj kuab paug rau cov qauv hauv kev ua ke nrog cov ntaub ntawv khiav tsheb, ua tiav nrhiav cov tsheb hluav taws xob ua pa phem (62%).
2. Kev ceeb toom txog hluav taws kub hnyiab
Lub visibility-smoke composite sensor network deployed in the Greater Khingan Range hav zoov cheeb tsam tuaj yeem nrhiav qhov hluav taws kub sai sai li ntawm 30 feeb los ntawm kev saib xyuas qhov tsis pom kev poob qis (> 30% / h) thiab koom tes nrog infrared tshav kub qhov chaw nrhiav kom pom, thiab cov lus teb ceev yog 4 npaug siab dua li cov txheej txheem ib txwm muaj.
Tshwj xeeb muaj xwm txheej
1. Chaw nres nkoj nkoj pilotage
Lub laser visibility meter (qauv: Biral SWS-200) siv nyob rau hauv Ningbo Zhoushan Chaw nres nkoj cia li qhib lub nkoj tsis siv neeg berthing system (APS) thaum pom kev yog <1000m, thiab ua tiav qhov yuam kev ntawm <0.5m hauv huab cua los ntawm fusing millimeter-yoj radar nrog visibility data.
2. Kev saib xyuas kev nyab xeeb ntawm qhov av
Nyob rau hauv Qinling Zhongnanshan txoj kev loj tunnel, ib tug dual-parameter sensor rau visibility thiab CO concentration yog ntsia txhua txhua 200m. Thaum pom kev pom yog <50m thiab CO> 150ppm, peb-theem cua qhov phiaj xwm tau txais kev ua haujlwm, ua kom lub sij hawm sib tsoo lub sijhawm rau 90 vib nas this.
Technology evolution trend
Multi-sensor fusion: integrating ntau yam tsis xws li pom, PM2.5, thiab dub carbon concentration
Edge xam: kev ua haujlwm hauv zos kom ua tiav millisecond-theem ceeb toom teb
5G-MEC architecture: txhawb qis-latency networking ntawm cov nodes loj
Tshuab kev kawm qauv: tsim kom pom kev pom kev sib tsoo-tsheb thauj mus los probability kwv yees algorithm
Hom kev npaj xa mus
Lub "dual-tshuab kub standby + hnub ci fais fab mov" architecture yog pom zoo rau txoj kev loj scenarios, nrog ib tug ncej qhov siab ntawm 6m thiab ib tug 30 ° qaij kom tsis txhob ncaj headlights. Cov ntaub ntawv fusion algorithm yuav tsum muaj xws li cov nag thiab pos huab module (raws li kev sib raug zoo ntawm kev pom kev hloov pauv thiab av noo) kom tsis txhob muaj lub tswb cuav thaum huab cua los nag hnyav.
Nrog rau txoj kev loj hlob ntawm kev tsav tsheb tsis muaj zog thiab lub nroog ntse, cov kev pom kev pom tau hloov zuj zus los ntawm cov cuab yeej tshawb nrhiav ib leeg mus rau cov kev nkag siab tseem ceeb ntawm cov kev txiav txim siab tsav tsheb ntse. Cov thev naus laus zis tshiab tshaj plaws xws li Photon Counting LiDAR (PCLidar) txuas ntxiv qhov kev kuaj pom kom qis dua 5m, muab cov ntaub ntawv raug ntau dua rau kev tswj xyuas tsheb hauv huab cua huab cua.
Post lub sij hawm: Feb-12-2025