Nyob zoo! Kab lus no qhia txog qhov teeb meem ntawm fake sensors, cov kev txwv ntawm cov khoom siv uas twb muaj lawm uas siv cov sensors no thiab cov kev daws teeb meem rau qhov teeb meem no.
Tau qhov twg los: ali-trends.ru
Ua ntej kuv, nws kuj tau sau txog fake sensors . Cov yam ntxwv sib txawv ntawm fake sensors thiab tus thawj:
- Lub sensor, txawm tias txuas nrog nyob ze, teb nyob rau hauv parasitic hwj chim hom tsis paub meej, txhua txhua ib zaug.
- Hauv hom kab mob parasitic, qib siab yuav siv sij hawm ntev heev kom rov zoo (koj tuaj yeem ntsuas nws nrog microcontroller lossis saib oscillogram)
- Kev noj tam sim no tseem ceeb dua li ntau lub microamps (GND thiab VCC rau rho tawm, DQ ntawm microammeter rau +5 volts)
- Tom qab cov txheej txheem sau npe (0xF0), cov sensors tsis teb rau qhov nyeem ntawv nyeem ntawv (0xBE)
- Qhov ntsuas kub tau nyeem los ntawm qhov khawb tom qab siv fais fab tsis muaj qhov ntsuas ntsuas qhov sib txawv ntawm 85,0 degrees.
- Lub scratchpad qhov tseem ceeb ntawm txoj haujlwm 5 thiab 7 tsis sib haum rau 0xFF thiab 0x10
- Qhov ntsuas kub (hauv thawj ob txoj haujlwm ntawm lub scratchpad) nyeem tom qab thawj qhov kev hloov ntawm lub tshuab hluav taws xob uas tsis muaj lub zog ntsuas qhov ntsuas tau muab rov qab rau tus nqi dhau los, thiab tsis yog 50 05 (85.0 degrees).
Hmoov tsis zoo, kuv tsis muaj oscilloscope, thiab Galileosky BaseBlock Lite GPS tracker tau ua lub rooj zaum zaum kawg.
Cov sensors tau yuav los ntawm ntau tus neeg muag khoom, thiab tsuas yog ib pawg ua haujlwm vim muaj zog parasitic. Tsuas yog 5 ntau ntawm 50 daim tau yuav.
Tus so tsis ua haujlwm vim yog lub zog parasitic txhua. Lub davhlau ya nyob twg tsis muab hluav taws xob sab nraud rau lub sensor, thiab kev teeb tsa ntawm lub tshuab ntawm lub tsheb yuav tsum yooj yim kom ntau li ntau tau.
Tshawb Fawb
Yog li, cov sensors tau yuav, tab sis tsuas yog ib pawg ua haujlwm kom raug, thiab kev tshawb nrhiav thiab kev txiav txim siab ntawm ib pawg tshiab yuav tau siv sij hawm tsim nyog, thiab yuav ua rau tus nqi overruns. Yog li ntawd, qhov teeb meem yuav tsum tau daws ntawm nws tus kheej.
Txij li tsuas yog siv ob-hlau Circuit Court, nws yog ib qho tsim nyog los npaj lub zog rau lub sensor los ntawm lub teeb liab xaim, uas yog, los npaj lub zog parasitic. Kuv teeb tsa lub zog parasitic raws li cov txheej txheem hauv qab no:
Nyob rau hauv cov tswv yim no, kev khiav hauj lwm ntawm parasitic zog yog zoo dua, tab sis nyob rau tib lub sij hawm, nws tseem muaj peev xwm mus txuas rau lwm lub hwj chim. Nyob rau hauv cov ntaub ntawv no, daim duab kev twb kev txuas hloov me ntsis: thaum txuas ntawm parasitic hwj chim, Vcc hlau tsis siv.
Tom qab sib dhos lub voj voog los ntawm qhov chaw mounting, lub sensor tau kuaj pom los ntawm lub davhlau ya nyob twg nrog lub peev xwm capacitor ntawm 1 µF. Rau kev siv loj, paneled boards nrog parasitic power boards tau tsim thiab txiav txim:
Nthuav ntsiab lus: Cov neeg tsim khoom tuaj yeem siv cov nplaum kub yaj los yog silicone los kaw lub sensor. Hauv thawj kis, koj tuaj yeem ua kom sov lub tes tsho, tshem lub sensor, ntxig rau lub rooj tsavxwm, rov qab mus rau lub tes tsho thiab sau nws nrog cov kua nplaum kub ntau dua. Hauv qhov thib ob, qhov no yuav tsis ua haujlwm ntxiv lawm, thiab kuv yuav tsum tau muab lub rooj sib tham ze rau ntawm lub sensor, sau nws nrog cov kua nplaum kub thiab muab tso rau hauv qhov kub thiab txias, vim li ntawd nws zoo li qhov no:
xaus
Ntawm no kuv xav hais kom cov tuam txhab tsim khoom siv cov ntsiab lus no rau hauv tus account hauv lawv cov khoom, thiab cov neeg muag khoom los xyuas cov sensors ua ntej muag lossis tsis cuam tshuam nrog tus neeg muag khoom tag nrho yog tias lawv muab cov khoom cuav, thiab cov neeg siv los qhia cov ntsiab lus no hauv cov lus, cov ntawv. los yog thov.
Tau qhov twg los: www.hab.com