Kodi Ma Alamu a Utsi a RF 433/868 Amaphatikizidwa bwanji ndi Magulu Owongolera?
Kodi mukufuna kudziwa momwe alamu yautsi ya RF yopanda zingwe imazindikira utsi ndikudziwitsa gulu lapakati kapena makina owunikira? M'nkhaniyi, tikambirana zigawo zikuluzikulu za anAlamu ya utsi wa RF, ndikuganizira za momwe aMCU (microcontroller) imatembenuza ma analogimu data ya digito, imagwiritsa ntchito ma aligorivimu ozikidwa pakhomo, ndiyeno siginecha ya digito imasinthidwa kukhala 433 kapena 868 RF siginecha kudzera pamakina osinthira a FSK ndikutumizidwa ku gulu lowongolera lomwe limaphatikiza gawo limodzi la RF.
1. Kuchokera Kuzindikira Utsi mpaka Kutembenuka kwa Data
Pamtima pa alamu ya utsi wa RF ndiPhotoelectric sensorzomwe zimakhudzidwa ndi kukhalapo kwa tinthu ta utsi. Sensor imatuluka ndimphamvu ya analogimolingana ndi kuchuluka kwa utsi. AnMCUmkati alamu amagwiritsa akeADC (Analogi-to-Digital Converter)kusintha mphamvu ya analogiyi kukhala ya digito. Poyesa mosalekeza zowerengera izi, MCU imapanga utsi wochuluka wa nthawi yeniyeni.
2. MCU Threshold Algorithm
M'malo motumiza sensa iliyonse yowerengera ku RF transmitter, MCU imayendetsaalgorithmkuti muwone ngati mulingo wa utsi ukupitilira mulingo wokhazikitsidwa kale. Ngati ndende ili pansi pa malire awa, alamu amakhala chete kuti apewe zabodza kapena zovuta. Kamodzi ndikuwerenga kwa digito kumaposaM'malo mwake, MCU imayika ngati chiwopsezo chamoto, ndikuyambitsa sitepe yotsatira.
Mfundo Zofunika za Algorithm
Kusefa Phokoso: MCU imanyalanyaza ma spikes osakhalitsa kapena kusinthasintha kwakung'ono kuti muchepetse ma alarm abodza.
Avereji ndi Macheke a Nthawi: Mapangidwe ambiri amakhala ndi zenera la nthawi (mwachitsanzo, kuwerenga kwa nthawi yayitali) kutsimikizira utsi womwe ukupitilira.
Kufananiza Kwachidule: Ngati kuwerengera kwapakati kapena pachimake kumakhala pamwamba pa chigawo chokhazikitsidwa, malingaliro a alamu amayambitsa chenjezo.
3. Kutumiza kwa RF kudzera pa FSK
MCU ikazindikira kuti alamu yakwaniritsidwa, imatumiza chenjezoSPIkapena njira ina yolumikizirana ndi aRF transceiver chip. Chip ichi chimagwiritsa ntchitoFSK (Frequency Shift Keying)kusinthasintha ORASK (Amplitude-Shift Keying)kuti muyike ma alarm a digito pamafupipafupi (mwachitsanzo, 433MHz kapena 868MHz). Chizindikiro cha alamu chimatumizidwa popanda zingwe kupita kumalo olandirira - nthawi zambiri agawo lowongolerakapenadongosolo lowunika-kumene imagawidwa ndikuwonetsedwa ngati chenjezo lamoto.
Chifukwa chiyani FSK Modulation?
Kutumiza Kokhazikika: Kusintha pafupipafupi kwa 0/1 bits kumatha kuchepetsa kusokoneza m'malo ena.
Flexible Protocols: Njira zosiyanasiyana zosungira deta zitha kuikidwa pamwamba pa FSK kuti zitetezedwe komanso zogwirizana.
Low Mphamvu: Yoyenera pazida zoyendetsedwa ndi batri, kusanja kosiyanasiyana komanso kugwiritsa ntchito mphamvu.
4. Udindo wa Control Panel
Kumbali yolandila, gulu lowongolera laRF gawoamamvetsera pa band ya ma frequency omwewo. Ikazindikira ndikuzindikira chizindikiro cha FSK, imazindikira ID kapena adilesi yapadera ya alamu, kenako imayambitsa phokoso lapafupi, chenjezo pamanetiweki, kapena zidziwitso zina. Ngati khomo linayambitsa alamu pamlingo wa sensa, gululo likhoza kudziwitsa oyang'anira katundu, ogwira ntchito zachitetezo, kapena ntchito yowunikira mwadzidzidzi.
5. N’chifukwa Chiyani Izi Ndi Zofunika?
Kuchepetsa Ma Alamu Onyenga: Ma algorithm oyambira a MCU amathandizira kusefa utsi waung'ono kapena fumbi.
Scalability: Ma alarm a RF amatha kulumikizana ndi gulu limodzi lowongolera kapena obwereza angapo, ndikupangitsa kubisalira kodalirika muzinthu zazikulu.
Customizable Protocols: Mayankho a OEM/ODM amalola opanga kuyika manambala a RF ngati makasitomala akufunika chitetezo kapena miyezo yophatikizira.
Malingaliro Omaliza
Pophatikizana mopanda msokokutembenuka kwa data sensor,Ma algorithms a MCU-based threshold algorithms,ndiKutumiza kwa RF (FSK)., ma alarm amasiku ano a utsi amapereka kuzindikira kodalirika komanso kulumikizidwa kopanda zingwe. Kaya ndinu woyang'anira katundu, wophatikiza makina, kapena mukungofuna kudziwa za uinjiniya wa zida zamakono zotetezera, kumvetsetsa zochitika zambiri kuyambira pa chizindikiro cha analogi kupita ku chidziwitso cha digito - kukuwonetsani momwe ma alarm awa adapangidwira modabwitsa.
Dzimvetseranikuti mulowe mozama muukadaulo wa RF, kuphatikiza kwa IoT, ndi mayankho achitetezo am'badwo wotsatira. Pamafunso okhudza kuthekera kwa OEM/ODM, kapena kuphunzira momwe makinawa angagwirizane ndi zosowa zanu,lumikizanani ndi gulu lathu laukadaulolero.
Nthawi yotumiza: Apr-14-2025