Kedu otu RF 433/868 Mkpu anwụrụ ọkụ si ejikọta na ogwe njikwa?
Ị na-achọsi ike ka mkpu anwụrụ ọkụ RF ikuku si achọpụta anwụrụ ọkụ wee gosi otu panel ma ọ bụ sistemụ nlekota? N'ime edemede a, anyị ga-akụrisị isi akụkụ nke iheRF anwụrụ ọkụ mkpu, na-elekwasị anya otúMCU (microcontroller) na-atụgharị akara ngosi analogn'ime data dijitalụ, na-etinye algọridim dabere na ọnụ ụzọ, wee gbanwee akara ngosi dijitalụ ka ọ bụrụ akara ngosi 433 ma ọ bụ 868 RF site na usoro nhazi FSK wee ziga na njikwa njikwa na-ejikọta otu modul RF.
1. Site na nchọpụta anwụrụ ọkụ na ntụgharị data
N'ime obi nke mkpu anwụrụ ọkụ RF bụ aihe mmetụta fotoelectricnke na-emeghachi omume na ọnụnọ nke anwụrụ ọkụ. Ihe mmetụta sensọ na-ewepụta otuanalog voltajinhata na njupụta nke anwụrụ ọkụ. AMCUn'ime mkpu na-eji yaNtụgharị ADC (Analog-gaa-Digital)iji gbanwee voltaji analọg a ka ọ bụrụ ụkpụrụ dijitalụ. Site n'ịlele agụmagụ ndị a na-aga n'ihu, MCU na-emepụta oke data nke ọkwa ntinye anwụrụ ọkụ.
2. MCU Threshold Algorithm
Kama izipu ihe mmetụta ọ bụla na-agụ na onye na-ebufe RF, MCU na-agba ọsọalgọridimiji chọpụta ma ọkwa anwụrụ ọkụ gafere ebe etinyere ya. Ọ bụrụ na itinye uche dị n'okpuru oke a, mkpu na-agbachi nkịtị ka ịzenarị mkpu ụgha ma ọ bụ mkpasu iwe. Ozugboọgụgụ dijitalụ karịrịọnụ ụzọ ahụ, MCU na-ekewa ya dị ka ihe ize ndụ ọkụ, na-ebute nzọụkwụ ọzọ na usoro ahụ.
Isi ihe nke Algorithm
Nchacha mkpọtụ: MCU na-eleghara spikes na-agafe agafe ma ọ bụ obere mgbanwe iji belata mkpu ụgha.
Nkezi na nlele ogeỌtụtụ atụmatụ na-agụnye windo oge (dịka ọmụmaatụ, ịgụ akwụkwọ ruo oge ụfọdụ) iji kwado anwụrụ ọkụ na-adịgide adịgide.
Ntụnyere ọnụ ala: Ọ bụrụ na nkezi ma ọ bụ ọnụ ọgụgụ kasị elu na-aga n'ihu n'elu ebe a tọhapụrụ, mgbagha mkpu na-ebute ịdọ aka ná ntị.
3. Nbufe RF site na FSK
Mgbe MCU kpebiri na ọnọdụ mkpu ezutere, ọ na-ezipụ mgbaama njikere site naSPIma ọ bụ ọzọ nkwurịta okwu interface ka aRF transceiver mgbawa. Nke a mgbawa na-ejiFSK (Igodo Shift ugboro ugboro)modulation ORJụọ (Amplitude-Shift Keying)iji tinye data mkpu dijitalụ n'ime otu ugboro (dịka, 433MHz ma ọ bụ 868MHz). A na-ebunye mgbaama mkpu na ikuku ikuku gaa na ngalaba nnata—ọkarị aogwe njikwama ọ bụusoro nlekota oru- ebe a na-atụgharị ya ma gosipụta ya dị ka ọkụ ọkụ.
Gịnị kpatara FSK Modulation?
Mbufe kwụsiri ike: Ịgbanwe ugboro maka 0/1 ibe n'ibe nwere ike ibelata nnyonye anya na mpaghara ụfọdụ.
Protocol na-agbanwe agbanwe: Enwere ike itinye atụmatụ ntinye data dị iche iche n'elu FSK maka nchekwa na ndakọrịta.
Ike dị ala: Kwesịrị ekwesị maka ngwaọrụ batrị na-arụ ọrụ, nha nha na ike oriri.
4. Ọrụ nke Control Panel
N'akụkụ nke ịnata, njikwa panel'sRF modulna-ege ntị na otu ugboro band. Mgbe ọ chọpụtara na decoded mgbama FSK, ọ na-achọpụta ID ma ọ bụ adreesị pụrụ iche nke mkpu ahụ, wee kpalite buzzer mpaghara, njikere netwọkụ, ma ọ bụ ọkwa ọzọ. Ọ bụrụ na ọnụ ụzọ kpalitere oti mkpu na ọkwa ihe mmetụta, otu panel nwere ike gwa ndị njikwa ihe onwunwe, ndị ọrụ nchekwa, ma ọ bụ ọbụna ọrụ nlekota ihe mberede.
5. Ntak emi edide akpan n̄kpọ
Mbelata mkpu ụgha: Algọridim dabere na ọnụ ụzọ MCU na-enyere aka nzacha isi mmalite anwụrụ ọkụ ma ọ bụ uzuzu.
scalability: Mkpu RF nwere ike jikọta na otu njikwa njikwa ma ọ bụ ọtụtụ ndị na-emegharịghachi, na-eme ka mkpuchi a pụrụ ịdabere na ya na nnukwu ihe.
Protocol enwere ike ịhazi yaIhe ngwọta OEM/ODM na-ahapụ ndị nrụpụta ka ha tinye koodu RF nkeonwe ma ọ bụrụ na ndị ahịa chọrọ nchekwa ma ọ bụ ụkpụrụ njikọta.
Echiche Ikpeazụ
Site na ijikọta n'enweghị nsogbuntụgharị data sensọ,Algọridim ụzọ dabere na MCU, nannyefe RF (FSK)., Mkpu anwụrụ ọkụ nke taa na-enye ma nchọpụta a pụrụ ịdabere na ya yana njikọ ikuku kwụ ọtọ. Ma ị bụ onye njikwa ihe onwunwe, onye na-ahụ maka sistemụ, ma ọ bụ na-achọsi ike maka injinia dị n'azụ ngwaọrụ nchekwa ọgbara ọhụrụ, ịghọta usoro ihe omume a-site na mgbama analog gaa na njikere dijitalụ — na-egosipụta otu esi emepụta mkpu ndị a n'ezie.
Nọrọ na-ekirimaka imikpu miri emi n'ime teknụzụ RF, njikọta IoT, yana ngwọta nchekwa ọgbọ na-abịa. Maka ajụjụ gbasara ohere OEM/ODM, ma ọ bụ ịmụta ka usoro ndị a ga-esi hazie maka mkpa gị.kpọtụrụ anyị teknuzu otutaa.
Oge nzipu: Eprel-14-2025