Isitifiketi se-IOS saseChina Izinzwa Zezinga lokushisa Lenhlabathi kanye Nomswakama 3.3 V kuya ku-5 V

Siqhubeka nethiyori "yekhwalithi kuqala, umhlinzeki ekuqaleni, ukuthuthukiswa okuqhubekayo kanye nokuqanjwa kabusha ukuze sihlangabeze amakhasimende" nabaphathi kanye "nokungabi nasici, izikhalazo ezingenalutho" njengenhloso evamile. Ukwenza inkampani yethu ibe yinhle, siletha okuthengiswayo sisebenzisa okuhle kakhulu ngentengo efanelekile ye-IOS Certificate China Soil Temperature kanyeInzwa Yomswakama3.3 V kuya ku-5 V, Khumbula ukuza ukuze uzizwe ukhululekile ukukhuluma nathi ngokuhleleka. futhi sikholelwa ukuthi sizokwabelana ngolwazi oluwusizo kakhulu lokuhweba nabo bonke abathengisi bethu.
Siqhubeka nethiyori "yekhwalithi kuqala, umhlinzeki ekuqaleni, ukuthuthukiswa okuqhubekayo kanye nokuqanjwa kabusha ukuze sihlangabeze amakhasimende" nabaphathi kanye "nokungabi nasici, izikhalazo ezingenalutho" njengenhloso evamile. Ukuze inkampani yethu ibe yinhle, siletha okuthengiswayo sisebenzisa okuhle kakhulu ngentengo efanelekileChina Inzwa Module, Inzwa Yomswakama, sithembele ezinzuzweni zethu ukuze sakhe indlela yokuhweba ezuzisanayo nozakwethu bethu abasebenzisana nabo. Ngenxa yalokho, sizuze inethiwekhi yokuthengisa yomhlaba wonke efinyelela eMpumalanga Ephakathi, eTurkey, eMalaysia naseVietnam.

Umswakama womhlabathi:
Uhlobo lwe-voltage (0 ～ 5V okukhiphayo):
R = V / 5 × 100%
(R inani lomswakama wenhlabathi futhi u-V inani lamandla kagesi okukhiphayo (V))
Uhlobo lwamanje (4 ～ 20mA okukhiphayo):
R = (I-4) / 16 × 100%
(R inani lokuswakama kwenhlabathi, mina ngiyinani lamanje lokuphumayo (mA))

Izinga lokushisa lomhlabathi:
Uhlobo lwe-voltage (0 ～ 5V okukhiphayo):
T = V / 5 × 70-20
(T inani lokushisa elilinganisiwe (℃), V inani le-voltage ephumayo (V), le fomula ihambisana nebanga lokulinganisa -20 ～ 50 ℃)
Uhlobo lwamanje (4 ～ 20mA)
T = (I-4) / 16 × 70 -20
(T yinani lokushisa elilinganisiwe (℃), mina ngingumphumela wamanje (mA), le fomula ihambisana nebanga lokulinganisa -20 ～ 50 ℃)

1.Uma ifakwe isiteshi sezulu esikhiqizwa yinkampani, xhuma ngqo inzwa ku-interface ehambisanayo esiteshini sezulu usebenzisa umugqa wezinzwa;

2. Uma i-transmitter ithengwa ngokwehlukana, ukulandelana komugqa okuhambisanayo kwe-transmitter ithi:

I-Transmitter voltage kanye nezintambo eziphumayo zamanje:

Izintambo zemodi yokuphuma kwamandla kagesi

Izintambo zemodi yamanje yokuphumayo

Ubukhulu besakhiwo

Usayizi Wenzwa

1.Ifomethi ye-serial
I-data bits 8 bits
Misa kancane 1 noma 2
Hlola Idijithi Ayikho
Isilinganiso se-Baud 9600 Isikhawu sokuxhumana okungenani singu-1000ms
2.Ifomethi yokuxhumana
[1] Bhala ikheli ledivayisi
Thumela: 00 10 Ikheli CRC (5 bytes)
Izimbuyiselo: 00 10 CRC (4 bytes)
Qaphela: 1. Ibhithi yekheli lomyalo wekheli lokufunda nokubhala kufanele libe ngu-00. 2. Ikheli yibhayithi elingu-1 futhi ububanzi bungu-0-255.
Isibonelo: Thumela 00 10 01 BD C0
Ibuyisela 00 10 00 7C
[2] Funda ikheli ledivayisi
Thumela: 00 20 CRC (4 bytes)
Izimbuyiselo: 00 20 Adress CRC (5 bytes)
Incazelo: Ikheli ngu-1 byte, ububanzi bungu-0-255
Isibonelo: Thumela u-00 20 00 68
Ibuyisela 00 20 01 A9 C0
[3] Funda idatha yesikhathi sangempela
Thumela: Ikheli 03 00 00 00 02 XX XX
Qaphela: njengoba kukhonjisiwe ngezansi

Ukubuyisela: Ikheli 03 04 XX XX XX XX YY YY
Qaphela

Ukuze ubale ikhodi ye-CRC:
1.Irejista ye-16-bit esethiwe ngaphambilini ithi FFFF nge-hexadecimal (okungukuthi, zonke zingu-1). Shayela le rejista ngerejista ye-CRC.
2.XOR idatha yokuqala ye-8-bit enebhithi engezansi yerejista ye-CRC engu-16 futhi ifake umphumela kurejista ye-CRC.
3.Shifta okuqukethwe kwerejista kwesokudla ngebhithi eyodwa (ubheke kwencane), gcwalisa ibhithi ephezulu kakhulu ngo-0, bese uhlola ephansi kakhulu.
4.Uma ibhithi ebaluleke kakhulu ingu-0: phinda isinyathelo sesi-3 (shintsha futhi), uma okuncane okubalulekile kungu-1: irejista ye-CRC ifakwe ku-XORed nge-polynomial A001 (1010 0000 0000 0001).
5.Phinda izinyathelo 3 no-4 kuze kube izikhathi ezingu-8 kwesokudla, ukuze yonke idatha ye-8-bit icutshungulwe.
6.Phinda izinyathelo 2 kuya kwezi-5 ukuze uthole ukucubungula kwedatha okungu-8-bit.
7.Irejista ye-CRC ekugcineni itholakele ikhodi ye-CRC.
8.Uma umphumela we-CRC ufakwa ohlakeni lolwazi, amabhithi aphezulu naphansi ayashintshaniswa, bese kuthi kancane kuqala.

Xhuma inzwa ngokulandela imiyalelo endleleni yokufaka izintambo, bese ufaka izikhonkwane zokuhlola zenzwa emhlabathini ukuze ulinganise umswakama, bese uvula amandla kanye neswishi yokuqoqa ukuze uthole izinga lokushisa lomhlabathi kanye nomswakama endaweni yokulinganisa.

1.Sicela uhlole ukuthi iphakheji iphelele futhi uhlole ukuthi imodeli yomkhiqizo iyahambisana yini nokukhetha.
2.Ungaxhumi uma ukhanyisa, bese uvula ngemuva kokuhlola izintambo.
3.Ungashintshi ngokuzenzakalelayo izingxenye noma izintambo ezidayisiwe lapho umkhiqizo uphuma efekthri.
4.Inzwa iyidivayisi enembayo. Sicela ungayiqaqi uwedwa noma uthinte ingaphezulu lenzwa ngezinto ezicijile noma uketshezi olubolayo ukuze ugweme ukulimaza umkhiqizo.
5.Sicela ugcine isitifiketi sokuqinisekisa nesitifiketi sokuvumelana, futhi usibuyisele kanye nomkhiqizo lapho ulungisa.

1.Uma okukhiphayo kutholwa, isibonisi sibonisa ukuthi inani lingu-0 noma lingaphandle kobubanzi. Hlola ukuthi akukho yini ukuvinjwa kwezinto zangaphandle. Umqoqi angase angakwazi ukuthola ulwazi ngendlela efanele ngenxa yezinkinga zezintambo. Sicela uhlole ukuthi izintambo zilungile futhi ziqinile;
2. Uma kungezona izizathu ezingenhla, sicela uxhumane nomkhiqizi.

Siqhubeka nethiyori "yekhwalithi kuqala, umhlinzeki ekuqaleni, ukuthuthukiswa okuqhubekayo kanye nokuqanjwa kabusha ukuze sihlangabeze amakhasimende" nabaphathi kanye "nokungabi nasici, izikhalazo ezingenalutho" njengenhloso evamile. Ukwenza inkampani yethu ibe yinhle, siletha okuthengiswayo sisebenzisa okuhle kakhulu ngentengo efanelekile ye-IOS Certificate China Soil Temperature kanyeInzwa Yomswakama3.3 V kuya ku-5 V, Khumbula ukuza ukuze uzizwe ukhululekile ukukhuluma nathi ngokuhleleka. futhi sikholelwa ukuthi sizokwabelana ngolwazi oluwusizo kakhulu lokuhweba nabo bonke abathengisi bethu.
Isitifiketi se-IOSChina Inzwa Module, Inzwa Yokuswakama, sithembele ezinzuzweni zethu ukuze sakhe indlela yohwebo yokuhlomula ngokubambisana nozakwethu bethu ngokubambisana. Ngenxa yalokho, sizuze inethiwekhi yokuthengisa yomhlaba wonke efinyelela eMpumalanga Ephakathi, eTurkey, eMalaysia naseVietnam.