I whakakapia e au taku whakakā mānu ki tētahi pūoko taumata wai ultrasonic — e toru marama i roto, Anei te kōrero tūturu
He aha ahau i mate ai i taku tatūnga tawhito
I tērā raumati, kua hinga taku papu puna. Anō.
I mau te whakakā mānu, a, ka maroke ta mātau kura wai mō ngā rā katoa e rua. I te mutunga o Aotearoa tēnei i Chongqing — 38°C i waho — ā, tokorua ngā tamariki me tētahi wahine kāore i whakamā ki te whakapuaki i ōna whakaaro i roto i te kōrerorero rōpū whānau, E rua ngā rā pouri i pau i a au ki te whakatika i tētahi mea i whakatikaina e au, e whā, e rima rānei ngā wā i mua.
Ehara tēnā i te wāhi kino rawa. Ko te mea kino rawa atu i a au i tētahi haerenga pakihi i te wā i pā mai.
Kei te noho ahau i tētahi whare motuhake me tētahi puna tūmataiti, kua tāutatia anō 2019 Mā te tino paerewa o te tatūnga whakawhiti-whakawhiti-me te tānga ka taea e te moni te hoko. I ia wā ka pakaru tētahi mea, i ngā wā katoa i te wā tino kino. I tīmata ahau ki te whakaaro: me whai huarahi pai ake.
He pēhea te mahi a te Acoustic Distance Sensing (I rangahau ahau i tēnei mō ngā haora)
Ka pono ahau — i taku rongonga tuatahi i te "pūoko taumata wai ultrasonic," I rangirua ahau. He nui te utu, he uaua hoki. Engari i te wā i mārama ai ahau ki te kaupapa matua, I mōhio ahau he ngāwari noa iho.
Ka werohia e te pūoko tētahi mokowhiti oro auau tiketike — kāore e rangona e te tangata — ki te mata wai. Ka tāwhana anō te mokowhiti, ā, ka inea e te pūoko te roa o te haerenga huri noa. I te mea he taimau e mōhiotia ana te tere o te oro i te hau (mō 340 m/s), Ka taea e koe te tatau i te tawhiti tika ki te mata wai. Whakaarohia pēnei i te pāoro pekapeka, i te sonar waka ruku rānei, hāunga te whakarite mō te inenga ahumahi tōtika.
Ko te manawa uho ko tētahi mea e kiia nei ko te Wā Rere (Ka rawe). Ka taea e ngā rīpene hōu te ine i roto i ngā hēkona moroiti, e whakamāoritia ana ki te tika ±2mm - neke atu i te nui mō taku poka hōhonu 3 mita.
Ko te mea i tino hokona ahau ko te utu pāmahana i hangaia ki roto i ngā wae o nāianei. Ka huri te tere o te oro me te pāmahana o te hau — pērā i te 10% i waenga i te raumati me te hōtoke. He thermistor rō-tonu tā ngā pūoko whakatupuranga o nāianei e whakatika tonu ana i te pānui i te wā tūturu. Nā te mōhio kua whakaaro tonu ngā kaipūkaha mō tēnei i whakawhirinaki ai ahau.
Mānu vs. Ultrasonic vs. Hihiani — He aha tāku i kōwhiri ai
Tata ki te rua wiki i pau i ahau te rangahau i ia kōwhiringa i runga i te mākete. Anei taku whakataurite pono:
| Whakakā Mānu | Pūoko Ultrasonic | Pūoko Hihiani | |
|---|---|---|---|
| Utu | $7–$30 | $40- $ 200 | $280–$1,100 |
| Whakatikatika | Tiketike (ia 6–12 marama) | Hakahaka (Tirohia ia 2–3 tau) | Hakahaka |
| Uauatanga tāuta | Ngāwari | Waenga | Mārō |
| tōtika | taratara (kā/weto anake) | Tiketike (ngā pānui haere tonu) | Teitei Rawa |
| Tino pai mō | Wai mā, ngā hiahia māmā | Wai/wai parakore/wai whānui | ngā kohu whakakino, ngongo, kohu |
Taku whakaaro: mēnā e hiahia ana koe ki te "pump on ina kī," He pai te whakakā mānu. Engari i te wā e hiahia ana koe ki te mōhio e hia te nui o te wai e toe ana — ka taki mamao rānei i ngā taumata — ko te ultrasonic te wāhi reka i waenganui i te āheinga me te utu. Kāore he tikanga o te utu o te hihiani mō te whakamahinga ahuwhenua kāinga, tauine iti rānei.
He aha tāku i hoko ai — Ngā tauira, Ngā Utu, Ki hea tiki ai
I haere ahau me te UniBeeper US-200, he pūoko e hāngai ana ki ngā taupānga ahuwhenua me ngā mahi iti. Ngā Tohu: 0.3awhe m–5m, ±2mm tika, putanga takirua (4–20mA koromeke o nāianei + RS485 Modbus).
I utua e au te ¥680 (mō $95) mai i tētahi toa pakihi o Taobao. I kōrerotia e te kaihoko kua heke iho ngā utu mai i te hekenga o ngā utu rīpene i tērā tau - ko te wae kotahi he ¥900 i te ono marama i mua.
I whakaarohia hoki e au te OPTIMUS OP-US401, he ōrite ngā tohu engari he ¥980 te utu ($135) ā, ko ngā tohu tāpae huaputa anake - he "ultrasonic rūpahu" i roto i taku pukapuka. Kāore he Modbus kāore he rangitaki raraunga, nā reira i hipa atu ahau.
Mō te tūhonotanga mamao, I tāpirihia e au he 4Kōwae G DTU (Kei roto ko te USR-IO780 tūhono-tangata, ¥230 / ~$32) hei pana i ngā raraunga pūoko mā te MQTT ki taku tauira Kaiāwhina Kāinga. Utu pūnaha katoa: tata ki te ¥910 (~$125).
Tāutanga: He ngāwari kē atu i taku i tūmanako ai, Engari kotahi tonu te take
I whakaaro ahau ka hiahia ahau ki tētahi pūmana PLC, pūmana ahumahi rānei. Kāore nāku. Taku tatūnga:
- Pūoko 4–20mA huaputa → 250Ω ātete tauira → tohu 1–5V → tāurunga DTU ADC
- RS485 Modbus → aho hāngai ana ki te tauranga DTU RS485 (rua-waea)
E ono ngā waea tapeke, ka oti i roto i te rua haora anake i roto i te karāti.
Ko te tino raruraru ko te teitei o te whakatū.
He "rohe mate" 30cm tō te pūoko - he wāhi kāpō kāore e taea te ine i raro tonu i te kanohi transducer. Tata ki te 40cm i raro iho i te whakatuwheratanga te taumata papu iti rawa o taku poka. I te tuatahi ka whakatūria e au te pūoko 20cm mai i te whakatuwheratanga o te poka, ā, ko te taumata wai mōkito e noho hāngai ana i te rohe mate. Ka peke haere tonu ngā pānui. Mā te neke ki te 35cm mai i te whakatuwheratanga i whakatika i ngā mea katoa.
Raina raro: Tātai i tō rohe mate i mua i tō hoko, kāore i muri i.
E toru marama i roto i — Te Whakataunga Pono
Whaikikotanga: 5/5
Kāore he hē kotahi i roto i te toru marama. Ko te arorau mana papu i waeheretia e au i te Kaiāwhina Kāinga — whakakīa ina raro iho i te 0.6m, tū ina i runga ake i te 2.2m — kua whakaoho tika i ia wā. Kāore anō taku wahine kia karere ki te kōrerorero rōpū whānau i te wā kotahi.
He whaitake ake ngā raraunga i taku tūmanako
I whakaritea e au ki te whakaoti i te "kura maroke i a au e ngaro ana." Ko tāku i whiwhi ai he bonus: E mōhio ana ahau ināianei ka whakahiko anō te wai whenua 24 hāora i muri i te ua nui. I whakaritea anō e au ngā huringa whakakī papu kia rere ai i muri i te marangai, e penapena ana i ētahi hiko i roto i te tau.
Whakahekenga Inihua: he toa ohorere
I taku whakahoutanga i taku inihua kāinga, I pātai noa atu ahau mēnā e tika ana ngā pūrere kāinga atamai mō tētahi whakahekenga utu. I mahia e rātau. I tukuatu e au te pūoko me ngā rīhīti hoko DTU, ka whiwhi hoki i tētahi 15% whakahekenga utu — tata ki te ¥180 ($25) ia tau. Kāore i te ao whānui, engari e tino tika ana kia pātai atu ki tō inihua.
Mēnā kei te whakaaro koe i tēnei — Ngā akoranga mai i aku hē
1. Whakarahia tikahia te awhe
Ngā awhe pūnoa: 1m, 5m, 10m, 20m. Kaua e whakarahi ake "mō te haumarutanga" — ko te tikanga o te awhe nui ake he rohe mate nui ake, e whakaiti iti ana i te tōtika ka taea te whakamahi. Kōwhiria tētahi tauira i whakatauria mō 30% i runga ake i tō hōhonutanga wai mōrahi tūturu.
2. Tirohia te whakatauranga IP
Whakatūnga o waho, upoko poka rānei? IP68 Mōkito. He iti noa iho te rerekētanga o te utu, Engari kāore te mauroa. I kite ahau i ngā wae kāore i te waitohu māmā ake me te IP65 anake - i roto i te āwhā raumati o Chongqing, Kāore au i te mōrearea.
3. He tino take te huka i ētahi tatūnga
He āhua mā taku wai poka, Nā reira ehara tēnei i te raruraru mōku. Engari ka whakamahia e tētahi hoa tētahi pūoko ōrite i roto i tētahi hāroto kikorangi me te huka algae i runga i te mata, ā, ko ana pānui i puta noa i te wāhi. I whakaotia e ia mā tētahi poka whakamārire PVC ngāwari - he paipa i purua ki runga i te wāhi inenga, whakatuwhera i raro, e whakangungu ana i te mata i te hūkere. He iti iho te utu i a ia $5, kua oti katoa te whakatika i te raru.
4. Kaua e tīpoka i te tōkarikari
Kaua e whakatū noa me te whakawhirinaki ki ngā taunoa. I pau i a au tētahi ahiahi e ine ana i ngā taumata wai e rima e mōhiotia ana mā te ine rīpene me te tāuru i ia pito ki roto i te tōkarikari paerangi o te pūoko. I muri iho i tēnā, I ōrite ngā pānui ki taku rīpene ine i roto i te 5mm. E whai hua ana i te haora.
Te Raina Raro (Mai i tētahi tangata e noho tonu ana me tēnei)
Tapeke pūtea penapena: i raro i te ¥1,000 ($135). Ko tāku i whiwhi ai: he raruraru i rite tonu te whakangaro i aku mutunga wiki me te whakararuraru i ahau i ia haerenga pakihi, kua ngaro katoa.
Ka taea e au te tirotiro i taku taumata wai mai i ngā wāhi katoa o te ao. Ka rere aunoatia taku papu. Kāore e hiahiatia e taku whānau te whakaaro mō taua mea.
Mēnā he puna tāu, he kura rokiroki, tētahi hiahia whakahaere taumata wai rānei huri noa i tō rawa — mēnā kei a koe te pūtea, tiki i te ultrasonic. Mēnā kāore i a koe te tahua, kimi pūtea. Ehara tēnei i te whakamohoa whai rawa. Ko te mea e pare ana i tō kāinga ina kore koe e noho ki reira.
