Iinketho zoNxibelelwano lwebhetri

Iipakethi zebhetri ezisekwe kwiLithium ifuna iNdlela yoLawulo lwebhetri (BMS) ukubeka iliso kwiiparamitha ezibalulekileyo ezifana neqondo lokushisa, i-voltage, yangoku, intlawulo / amazinga okukhutshwa, umthamo, kunye nempilo yonke. Ukuba imiba efana nobushushu obugqithisileyo okanye ukutshaja ngokugqithiseleyo ichongiwe, i-BMS yazisa eyona nkqubo yokulawula ukuba iqalise ukupholisa okanye ukumisa ukutshaja. Ke ngoko, iiprothokholi zonxibelelwano ezithembekileyo phakathi kwe-BMS, isixhobo, kunye nenkqubo yolawulo zibalulekile kukhuseleko lokusebenza kunye nokusebenza kakuhle.

Iintlobo zeeProtokholi zoNxibelelwano lweBattery

Iiprothokholi zonxibelelwano ezininzi ziqhele ukusetyenziswa namhlanje, nganye inamandla athile:

• I-RS232 yeyomgama omfutshane, uqhagamshelo ukuya kwindawo efana noxilongo okanye uhlaziyo lwe-firmware. Ilula kodwa ixhasa isixhobo esinye kuphela kwaye isebenza kakuhle ukuya kuthi ga kwi-15-20 yeemitha.
• I-RS485 iphatha imigama emide (ukuya kwi-1, 200 yeemitha), idibanisa izixhobo ezininzi kwinethiwekhi enye. Ithembekile kwiindawo ezinengxolo – ilungele iinkqubo zamandla zasekhaya ezineebhetri ezininzi.
• I-CAN (iNethiwekhi yeNdawo yoMlawuli), eyaphuhliswa ekuqaleni kwiimoto kwaye ngoku isetyenziswa kwiinkqubo zamandla aphambili, ixhasa i-speed-speed multi-device communication kunye nokufumanisa impazamo. Yomelele kodwa inzima ngakumbi ukuseta, ifanelekile kwizicelo ezinkulu okanye zentengiso ezifuna utshintshiselwano lwedatha yexesha langempela.
• Ezinye iiprotocol ezifana ne-I2C, i-SMBus, kunye ne-UART zikhonza izixhobo ezincinci (umzekelo, iidrones zabathengi) ezineemfuno ezilula. Iiprothokholi ezingenazingcingo ezifana ne-BLE zisetyenziselwa ukubeka iliso kuluhlu olufutshane.

Ukukhetha iProtocol yoNxibelelwano oluLungileyo

Ukukhetha iprotocol efanelekileyo kuxhomekeke kwiimfuno zakho ezithile. Akukho sicombululo esilingana nesinye. Ukhetho lwakho kufuneka lusekelwe kwisikali senkqubo yakho kunye nento ekufuneka uyenzile.

Nalu uthelekiso olukhawulezayo lwemigaqo emithathu eqhelekileyo ukukunceda wenze isigqibo:

Isantya esiphezulu soMgama weProtocol sesona siSekelo

Kwiinkqubo ezininzi zasekhaya zeebhetri ezininzi, iRS485 lukhetho olulungileyo. Kwiiseti ezinkulu, ezisebenza kakhulu, i-CAN ihlala ingcono nangona inzima. Qinisekisa i-BMS yebhetri yakho kunye ne-inverter isebenzisa iprothokholi efanayo ukunqanda ukusilela konxibelelwano kunye nemiba yenkqubo.

Injongo yeProtokholi yoNxibelelwano lwebhetri

Umsebenzi ophambili weprotocol yonxibelelwano kukuvumela utshintshiselwano lwedatha. Ivumela i-Battery Management System (BMS) ukwabelana ngolwazi olubalulekileyo kunye nezinye izixhobo, ezifana ne-inverters okanye iinkqubo zokubeka iliso. Ngokuqhelekileyo, le datha ibandakanya:

• I-voltage kunye yangoku
• Ubushushu
• iState of Charge (SoC) – angakanani amandla aseleyo
• Ubume beMpilo (SoH) – imeko iyonke yebhetri
• I-alamu okanye imiyalezo ephosakeleyo

Le datha eqhubekayo isebenza kwiinjongo ezintathu eziphambili:

1. Ukonyusa uKhuseleko: I-BMS inokubonisa i-inverter ukuba iyeke ukutshaja ukuba ibhetri igcwele, ukuthintela iingozi ezinjengokutshaja kakhulu okanye ukufudumeza.
2. Ukuphucula ukusebenza kakuhle: Idatha echanekileyo inceda ukwandisa intlawulo kunye nemijikelo yokukhupha ukuze kusetyenziswe ibhetri engcono.
3. Yandisa Ubomi Bebhetri: Ukusebenza ngolungelelwano kunye nokubekw'esweni okuchanekileyo kunciphisa ukuguga kunye nokukrazula, ukwandisa ubomi bebhetri.

Izikhokelo zeFomathi yoNxibelelwano

Kunxibelelwano olungenamagingxi-gingxi, wonke umntu okwinkqubo kufuneka alandele indlela yonxibelelwano efanayo.

IziKhokelo zokuHamba kunye nolandelelwano

Idatha ithunyelwa kwiipakethi ezicwangcisiweyo ezinedilesi, umyalezo, kunye nendlela yokukhangela iimpazamo. Iiprothokholi zichaza ulwakhiwo lwezakhelo zedatha.

For example, the CAN protocol uses a frame format with an identifier (priority code), data, and checksum for errors. Communication often follows a sequence; a master device like a computer may request information from slave devices such as batteries in a specific order.

Transmission Fault Detection Guidelines

Data transmission can fail. Protocols have built-in methods to detect these faults. A common method is a Cyclic Redundancy Check (CRC). This is a mathematical calculation added to the end of the data packet.

The receiving device performs the same calculation. If the results differ, it knows the data was corrupted during transmission. The protocol then dictates what to do next, like asking for the data to be sent again. This ensures the information is reliable.

Idilesi kunye neziKhokelo zoMvumo

Kwinethiwekhi enezixhobo ezininzi, nganye ifuna esahlukileyo “idilesi.” Oku kuqinisekisa ukuba imiyalezo ifika kwindawo eyiyo. Umzekelo, kwinethiwekhi ye-Modbus, ibhetri nganye inokuba nedilesi eyodwa ukusuka ku-0x01 ukuya ku-0x0A.

I-Acknowledge yindlela yokuqinisekisa ukuba umyalezo ufunyenwe. Ezinye iiprothokholi zisebenzisa inkqubo apho isixhobo esifumanayo sithumela umva i “ukuvuma” umyalezo. Ukuba umthumeli akafumani ukuvunywa, uthumela umyalezo kunxibelelwano oluthembekileyo ngakumbi.

Ukuqukumbela

Iiprothokholi zonxibelelwano lwebhetri zibalulekile kwiinkqubo zamandla ezikhuselekileyo nezisebenzayo. Basebenza njengekhonkco elibalulekileyo phakathi kwebhetri, inkqubo yolawulo lwayo, kunye namanye amacandelo.

Ukukhetha iprotocol efanelekileyo kuxhomekeke kubungakanani benkqubo yakho kunye neemfuno. I-RS485 ihlala ilungele amakhaya, ngelixa i-CAN ingcono kwizicelo ezinkulu. Isitshixo kukuqinisekisa ukuhambelana phakathi kwazo zonke iindawo zesistim yakho kunye nokulandela izikhokelo ezisekiweyo zokuhamba kwedatha, ukujonga iimpazamo, kunye nokujongana.

Ngokuvumela utshintshiselwano lwedatha ebalulekileyo, ezi protocols zinceda ukuthintela iingozi, ukwandisa ukusebenza, kunye nokwandisa ubomi botyalo-mali lwakho lwebhetri.