Piezoelectric Traffic Sensor yeAVC (Automatic Vehicle Classification)
Tsanangudzo Pfupi
Iyo CET8311 yakangwara traffic sensor yakagadzirirwa kuisirwa zvachose kana kwechinguva kuisirwa mumugwagwa kana pasi pemugwagwa kuunganidza traffic traffic. Iyo yakasarudzika chimiro che sensor inobvumira kuti iiswe yakananga pasi pemugwagwa mune inoshanduka fomu uye nekudaro inoenderana neiyo contour yemugwagwa. Iyo yakadzika dhizaini ye sensor inopesana neruzha rwemumugwagwa unokonzerwa nekukotama kwepamusoro pemugwagwa, nzira dziri padyo, uye mafungu ekukotama anosvika kumotokari. Iyo diki incision pamugwagwa inoderedza kukuvadzwa kwepamusoro pemugwagwa, inowedzera kukurumidza kuisirwa, uye inoderedza huwandu hwegrout hunodiwa pakuiswa.
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Enviko WIM zvigadzirwa
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Nhanganyaya
Iyo CET8311 yakangwara traffic sensor yakagadzirirwa kuisirwa zvachose kana kwechinguva kuisirwa mumugwagwa kana pasi pemugwagwa kuunganidza traffic traffic. Iyo yakasarudzika chimiro che sensor inobvumira kuti iiswe yakananga pasi pemugwagwa mune inoshanduka fomu uye nekudaro inoenderana neiyo contour yemugwagwa. Iyo yakadzika dhizaini ye sensor inopesana neruzha rwemumugwagwa unokonzerwa nekukotama kwepamusoro pemugwagwa, nzira dziri padyo, uye mafungu ekukotama anosvika kumotokari. Iyo diki incision pamugwagwa inoderedza kukuvadzwa kwepamusoro pemugwagwa, inowedzera kukurumidza kuisirwa, uye inoderedza huwandu hwegrout hunodiwa pakuiswa.
Iyo mukana weCET8311 yakangwara traffic sensor ndeyekuti inokwanisa kuwana chaiyo uye chaiyo data, senge chaiyo yekumhanya siginecha, trigger siginecha uye ruzivo rwemhando. Inogona kupa mhinduro yehuwandu hwehuwandu hwehuwandu hwehuwandu kwenguva yakareba, nekuita kwakanaka, kuvimbika kwepamusoro uye nyore kuisa. Kushanda kwemutengo wepamusoro, kunonyanya kushandiswa mukuonekwa kweaxle nhamba, wheelbase, kutarisa kumhanya kwemotokari, kupatsanurwa kwemotokari, huremu hunosimba uye dzimwe nzvimbo dzemotokari.
Zvose chiyero
Ex: L=1.78 metres; Sensor kureba ndeye 1.82 metres; Hurefu hwese ndeye 1.94 metres
| Sensor Length | Inooneka Brass Kureba | Hurefu Hwose (kusanganisira magumo) |
| 6'(1.82m) | 70''(1.78m) | 76''(1.93m) |
| 8'(2.42m) | 94''(2.38m) | 100''(2.54m) |
| 9'(2.73m) | 106''(2.69m) | 112''(2.85m) |
| 10'(3.03m) | 118''(3.00m) | 124''(3.15m) |
| 11'(3.33m) | 130''(3.30m) | 136''(3.45m) |
Technical parameters
| Muenzaniso Nha. | QSY8311 |
| Chikamu saizi | ～3 × 7mm2 |
| Urefu | inogona kugadzirwa |
| Piezoelectric coefficient | ≥20pC/N Nominal value |
| Insulation resistance | ＞500MΩ |
| Equivalent capacitance | ～6.5nF |
| Kushanda tembiricha | -25 ℃～60 ℃ |
| Interface | Q9 |
| Mounting bracket | Batanidza iyo inokwirisa bracket ne sensor (Nylon zvinhu zvisina kudzokororwa). 1 pcs bracket imwe neimwe 15 cm |
Kugadzwa kwekugadzirira
Sarudzo yechikamu chemugwagwa:
a) Zvinodiwa pakuyera midziyo: Kugadzikana kwenguva refu uye kuvimbika
b)Zvinodiwa paroadbed: Kuoma musoro
Nzira yekuisa
5.1 Kucheka slot:
| Matanho | Mufananidzo |
| 1） Zviratidzo zvekuvakisa zvinofanirwa kuiswa pamberi penzvimbo yekuvaka.2) Dhirowa mutsara: shandisa tepi, slate penzura uye inki tsime kudhirowa uye kumaka nzvimbo iyo sensor inoiswa, zvakare iva nechokwadi chekuti tambo dzakareba zvakakwana kuti dzibatanidze kudivi remugwagwa. cabinet.3） Cutting slot: shandisa cutter kuvhura square groove mumugwagwa uchitevedza mutsara wekumaka. Muchinjikwa-sectional dimension ye groove inofanirwa kudzorwa nemazvo mukati meiyo yakatarwa (ona dhayagiramu kurudyi). Zvinoenderana nehurefu hwe sensor, dzika kudzika kweiyo groove inopera kusvika 50mm (kugadzirisa kune iyo sensor inobuda musoro uye yekupedzisira). 4) Kutyora mugwagwa:use nyundo kugera uye kudimbura pasi pegoro. Pasi pe groove inofanira kuchekwa zvakanaka sezvinobvira. Zvinoenderana nedhirowa: iyo chaiyo mufananidzo uye yakakodzera yakakosha yekuvaka mifananidzo. Midziyo mikuru: muchina wekucheka pavement, sando yekukanganisa, badza, chibooreso. Cherechedza: Dzora kudzika kwekupwanya kweiyo inokwira groove. Kana yakanyanya kudzika, sensor uye bracket haigone kugara. Kana yakanyanya kudzika, huwandu hwegroutzvichava zvikuru. groutzvichava zvikuru. | 1) Cross Section dimension A=20mm(±3mm)mm;B=30(±3mm)mm 2) Kureba kweGroove Kureba kweiyo slot kunofanirwa kunge kuri kupfuura 100 kusvika 200 mm yehurefu hwese hwe sensor. Hurefu hwesensonzi: i=L+165mm, L ndeyehurefu hwendarira (Ona chinyorwa). |
5.2 Kuchenesa uye kuoma matanho
1, Kuti ive nechokwadi chekuti midziyo yekubikira inogona kunyatsobatanidzwa nepamusoro pemugwagwa mushure mekuzadza, iyo yekuisa slot inofanirwa kugezwa ne-high-pressure cleaner, uye pamusoro pegorofu inofanira kushambidzwa nebrashi resimbi, uye air compressor/ high pressure air gun kana blower inoshandiswa mushure mekuchenesa kuomesa mvura.
2, Mushure mekunge marara acheneswa, dota rinoyangarara pamusoro pekuvaka rinofanira kucheneswa zvakare. Kana paine mvura yakaunganidzwa kana hunyoro hunooneka hunoonekwa, shandisa air compressor (high pressure air gun) kana blower kuti iome.
3, Mushure mekucheneswa kwapera, tepi yekuisa chisimbiso (yakafara kupfuura 50mm) inoiswa
kumugwagwa wakatenderedza notch kudzivirira kusvibiswa kune grout.
5.3 Pre-installation bvunzo
1, Test capacitance: Shandisa dijitari-mamita akawanda kuyera iyo yakazara capacitance ye sensor netambo yakasungirirwa. Kukosha kwakayerwa kunofanirwa kunge kuri mukati mechikamu chakatsanangurwa neinoenderana kureba sensor uye tambo data sheet. Uwandu hwemuyedzo unowanzo kusetwa ku20nF. Iyo dzvuku probe yakabatana nepakati petambo, uye dema probe yakabatana nekunze nhovo. Ziva kuti haufanirwe kubata ese maviri ekubatanidza magumo panguva imwe chete.
2, Muedzo kuramba: Edza kuramba kumagumo ese e sensor ine dijitari-mamita akawanda. Iyo mita inofanira kuiswa ku20MΩ. Panguva ino, kuverenga pawachi kunofanira kudarika 20MΩ, kazhinji inoratidzirwa ne "1".
5.4 Gadzirisa mounting bracket
| Matanho | Mufananidzo |
| 1) Vhura iyo sensor uye tarisa kana iyo sensor yakamira. Ruramisa sensor kuitira kuti sensor irambe yakatwasuka uye yakati sandarara.2） Vhura bhuraketi rekusungirira mubhokisi uye isa bhureketi parutivi rwe sensor inosvika 15cm intervals.3） Isa bhaketi rinosungirirwa pamwe chete ne sensor. mukati mekucheka slot. Nzvimbo yepamusoro yemabhuraketi ese inosvika 10mm kubva panzira. 4）Bendesa iyo sensor inopera pasi 40 °, kotamisa mubatanidzwa pasi 20 °, wobva waikotamisa 20 ° kumusoro kusvika padanho. |  Dimension
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5.5 Sanganisa grout
Cherechedza: Ndapota verenga mirayiridzo yegrout zvakanyatsonaka usati wasanganisa.
1） Vhura iyo yekubikira grout, zvinoenderana nekumhanya kwekuzadza uye dosi inodiwa, inogona kuitwa muhudiki asi nguva shoma kudzivirira kutambisa.
2）Gadzirira huwandu hwakakodzera hwekubikira grout zvinoenderana nechiyero chakatarwa, uye kurunga zvakaenzana nemagetsi sando stirrer (anenge maminetsi maviri).
3) Mushure mekugadzirira, ndapota shandisa mukati memaminitsi makumi matatu kudzivirira kuomarara mubhaketi.
5.6Matanho ekutanga ekuzadza grout
1）Dururira grout zvakaenzana pakureba kwegorofu.
2) Kana uchizadza, chiteshi chemvura chinogona kuumbwa nemaoko kuti chifambise kutonga kwekumhanya uye kutungamira panguva yekudira. Kuti uchengetedze nguva uye simba remuviri, inogona kudururwa nemidziyo midiki yekugona, izvo zviri nyore kuti vanhu vakawanda vashande panguva imwe chete.
3）Kuzadza kwekutanga kunofanirwa kunge kwakazara kuzadzwa slots, uye kugadzira grout nzvimbo yakakwira zvishoma pane pavement.
4) Chengetedza nguva zvakanyanya sezvinobvira, zvikasadaro grout ichasimba (ichi chigadzirwa chine yakajairika kurapa nguva ye1 kusvika maawa maviri).
5.7Yechipiri grout kuzadza matanho
Mushure mekunge grouting yekutanga yanyatsorapwa, tarisa pamusoro peiyo grout. Kana iyo nzvimbo yakadzikira kupfuura nzira yemugwagwa kana iyo nzvimbo yakavharwa, sanganisa grout (ona danho 5.5) uye ita kuzadza kwechipiri.
Kuzadza kwechipiri kunofanira kuva nechokwadi chokuti nzvimbo ye grout iri zvishoma pamusoro pemugwagwa.
5.8Kukuya pamusoro
Mushure mekugadzwa nhanho 5.7 inopedzwa kwehafu yeawa, uye grout inotanga kusimba, kubvarura matepi pamativi ezvitsigiro.
Mushure mekuisa nhanho 5.7 inopedzwa kweawa imwe, uye grout yakasimbiswa zvachose, kugaya
grout nechigayo chekona kuti iite kuyerera nepamusoro pemugwagwa.
5.9Pa-saiti kuchenesa uye post-kumisikidza kuyedzwa
1) Chenesa zvakasara zvegrout uye mamwe marara.
2) Kuedza mushure mekuisa:
(1) Test capacitance: shandisa dhijitari yakawanda mita kuyera iyo yakazara capacitance ye sensor netambo yakasungirirwa. Kukosha kwakayerwa kunofanirwa kunge kuri mukati mechikamu chakatsanangurwa neinoenderana kureba sensor uye tambo data sheet. Uwandu hwemuyedzo unowanzo kusetwa ku20nF. Iyo dzvuku probe yakabatana nepakati petambo, uye dema probe yakabatana nekunze nhovo. Chenjerera kuti usabata magumo maviri ekubatanidza panguva imwe chete.
(2) Muedzo kuramba: shandisa dijitari yakawanda mita kuyera kuramba kwe sensor. Iyo mita inofanira kuiswa ku20MΩ. Panguva ino, kuverenga pawachi kunofanira kudarika 20MΩ, kazhinji inoratidzirwa ne "1".
(3) Pre-load bvunzo: mushure mekugadzika kwepasi kwacheneswa, batanidza inobuda sensor kune oscilloscope. Iyo yakajairika marongero eiyo oscilloscope ndeye: Voltage 200mV/div, Nguva 50ms/div. Kune iyo yakanaka chiratidzo, iyo inokonzeresa voltage inoiswa kusvika ku50mV. Yakajairwa waveform yerori nemota inounganidzwa senge pre-load bvunzo waveform, uyezve bvunzo waveform inochengetwa uye ikopwa kunze kuti idhindwe, uye inochengetwa zvachose. Kubuda kwe sensor kunoenderana nenzira yekumisikidza, kureba kwe sensor, kureba kwetambo uye potting zvinhu zvinoshandiswa. Kana iyo preload bvunzo yakajairika, kuisirwa kwapera.
3) Kuburitswa kweTraffic: zvirevo: Traffic inogona kungoburitswa kana iyo potting yanyatsopora (anenge maawa 2-3 mushure mekupedzisira kuzadzwa). Kana iyo traffic ikaburitswa kana iyo potting ikarapwa zvisina kukwana, inokuvadza kuisirwa uye kuita kuti sensor ikunde nguva isati yakwana.
Preload test waveform
2 Axes
3 Matemo
4 Matemo
6 Matemo
Enviko anga ari nyanzvi yeWeigh-in-Motion Systems kweanopfuura makore gumi. Yedu WIM sensors uye zvimwe zvigadzirwa zvinozivikanwa zvakanyanya muITS indasitiri.
