Reseau publik Walkie-Talkie Analyse Performance: Ñaari jéego yu am solo ci lëkkaloo ak wóor

Push-to-Talk over Cellular (PoC), xeetu walkie{2}}talkie buñ yeesal, dafay jàppale reso jokkoo mobile ngir mëna jokkoo ci saasi, diggante gox yi, di wane njariñ yu amul fenn ci wàllu logistik, kaaraange ak yeneen tontu ci jafe-jafe. Performance bi nekkul rek ci wane jaar-jaaru jëfandikukat bi waaye dina am njeexital ci wóorum jokkoo bi ci senaario yu xawa jafe. Li ci topp dafay jàngat màndarga yi gëna am solo ci walkie-talkies reso publik ci anam yu bari.

I. Jokkoo Couverture: Jokkoo yu "amul àpp" yuy romb ay yamaleg distance

Walkie -talkie yi fi yàgg a nekk dañuy sukkandikoo ci fréquence radio, seen jokkoo bu baax mingi yam ci ay kilometre yu néew wala fukki kilometre (dafay aju ci doole ji ak ci anam wi environmaa bi di doxee). Walkie-talkies yi ci reso publik yi, dañuy boole seeni reso porteurs jaaraleko ci 4G/5G wala Wi-Fi, loolu mooy tax ñu mëna jokkoo bu baax ci réew mi yépp ba ci àdduna bi yépp. Ci misaal, ci dëkki taax yu am gaaraasu base yu bari, dooley siñaal bi doyna ngir jàppale woote yu dëgër yi ci gaaraas yi ci suufu suuf ak ci biir tabax yu kawe yi. Ci barab yu sori, fu reso bi amee (lu melni siñaal 4G), walkie-talkie yu reso publik yi mën nañu wéy di lëkkaloo. Yenn model yu mujj yi dañuy jàppale itam ñaari - SIM ñaari standby wala weccoo reso bi ci saa si. Su siñaalu reso bu njëkk bi néewee doole, sistem bi dafay gaaw dem ci reso bu bees, loolu dafay wàññi bu baax risku dagg jokkoo bi.

II. Gaawaayu tontu: "Zero Latency" Optimisation ci tëf butoŋu baat

Valeur bu mag bi ci walkie-talkie mingi ci "joxe bataaxal ci saasi." Latency walkie-talkies reso publik dafay indi jafe-jafe ci jëfandikukat bi. Aprey yi njëkka am reso 2G/3G dañu daan yeexal 1-3 seconde ndax bandwidth reso bi doyul woon. Waaye, chipset 4G LTE Cat.1/Cat.4 yi fi nekk, boole ci protokol VoIP yiñ gëna defar, wàññi nañu latency biy jeex ba 0.5 seconde, mu jegesi "pees te dem" ci jaar-jaaru reso bu walkie analog bu cosaan. walkie-talkie demna lu gëna sori, di joxe latency bu woyof (latency theorique bu weesuwul 100 milisegond) ngir mëna dëppoo ak bëgg-bëggu senaario yu xarañ yu melni télécommande usine. Dafay baax ñu xamni latency bi itam dafay aju ci congestion reso bi. Ci barab yu bari nit (lu melni konseer yi), sudee gaaraasu base yi dañu fees dell, latency bi mën na yokk ci diir bu gàtt. Waaye, aparey yu bari dañuy mëna joxe done yu baax ci baat jaaraleko ci QoS (Kalite Serwiis) bi njëkka am.

III. Kalite Baat ak Leer: Yemale Xaralay Bañ ak Xaralay Kodage

Kalite audio bu walkie-talkie reso publik dafay aju ci environmaa reso bi ak ci algorithm codage bi. Walkie analog yiñ gëna xam, doonte dese ñu benn coppite ci kompresioŋ, dañuy gaawa am jafe-jafe electromagnetik, te loolu mën na jur bruit. Walkie-talkie yu reso publik yi dañuy jëfandikoo kodage numérique (lu melni AMR{5}}WB baat bu yaatu ak kodage Opus buy méngoo) ngir yemale leer gi ak baña nangu jafe-jafe yi ci biir bandwidth bu gàtt. Aprey yi gëna mag dañuy jàppale 8kHz ak 16kHz sampling rate . 16kHz wideband coding mën na génne ay detay yu gëna riis (lu melni vocalisation sibilant ak son yi ci ginaaw), loolu moo tax mu méngoo ak senaario yiy laaj njubte ci joxe xibaar (such). Rax ci dolli, boole ci mikrofon buy fomm bruit ak algorithm buy fomm echo dafay segg bu baax interference yu melni bruit ngelaw ak bruit electrik ci aparey yi, suko defee ñaari pàcc yi mëna dégg bu baax mesaas yu am solo yi doonte ci barabu tabax bu bari bruit wala ci environmaa yi oto yi di daje.

IV. Dundug batëri ak wóor: màndarga yu am solo ngir liggéey bu yàgg-

Dundug batëri walkie{0}}talkie reso publik dafay indi jafe-jafe ci ni ñuy mëna doxalee saa yu nekk. Aprey yiñ gëna xam mooy batëri bi mën na am 20003000mAh, loolu mooy tax batëri bi di dox 8{9}12 waxtu te doo sarse bu baax (ngir jëfandikoo bu yam wala bu woyof). Modèle profesionel yi dañuy jëfandikoo batëri yu gëna mag (4000-6000mAh) wala ñu am jëmmal buñ mëna wecci. Doxalal kuuraŋ bu am xel (lu melni mode nelaw ak gaz bu woyof ci batëri) dafay yokk diiru liggéey bi, yenn model yi mën nañu jëfandikoo lu ëpp 15 waxtu yu bari. Ci wàllu wóor, dëkkuwaayi interfoŋu reso publik yu usine yi dañuy faral di defaree plastik wala wen wu am doole lool, ñu am IP67 (mënul dundu pënd ak ndox, mën nañu ko dugal ci ndox ci diir bu gàtt) wala IP68 (mënul dugg ci ndox mu gëna xóot). Dañu leen di saytu itam ndax tàngoor wi mën na wàcci (lu ëpp 1,5 meetar) ba noppi ñu natt ko ndax tàngoor wi yéeg na wala wàcci (-20 degre ba 60 degre), suko defee ñu mëna liggéey bu baax ci barab yu metti (lu melni liggéeyu xettali nit ñi ci taw ak tabax ci biti).

V. Liggéey bu yaatu: Liko dalee ci woote bu yomb ba ci liggéeyandoo bu am xel

Interphone yi ñuy jëfandikoo ci reso publik yu bees yi weesu nañu jokkoo baat bu yomb, dañu boole ci anam yu bari yu am njariñ ngir gëna yombal liggéey bi. Ci misaal, modulu positionnement GPS/Beidou mën nañu yebbi barabi aparey yi ci platform yi ñuy doxalee ci jamono dëgg, loolu dina may santar yiy yónnee ñu mëna saytu ni ekip bi di doxee. Transmisioŋ multimedia dafay jàppale yónnee nataal ak wideo yu gàtt, moo tax ñu baax ci -dajale firnde ci sit bi wala joxe feedback ci tolluwaayu aparey bi. Yenn aparey yi mën nañu ànd ak lëkkaloo Bluetooth (ngir kaska yi ak mikro yi ñuy jëfandikoo ci loxo), xamle NFC (ngir yor sañ-sañ yi), ba ci baat IA-ci-tekst, di soppi ci saasi ndigali baat yi ci dokimaa ngir yombal toppu bi. Man-man yu yaatu yooyu taxul ñu mëna def interphone yi, waaye ñu mëna bokk ci liggéey yi ñuy jëfandikoo ci wàllu digital, nekk jumtukaay bu am solo ci xam-xam liggéey bi.

Résumé: Njariñu performance walkie-talkies ci reso publik mingi aju ci ñeenti mbir yu am solo: coverage bu yaatu, latency bu néew, kalite audio bu dëgër, ak wóor gu rëy. Buñu leen boole ak njariñu infrastructure reso mobile, dañuy saafara jafe-jafe yi walkie-talkie yi yàgg a am, lu ci melni sori bu gàtt ak liggéey bu gàtt. Ak tasaaroo jëfandikoo reso 5G ak jëm kanam gi ci xaralay puce, reso publik walkie-talkies dina wéy di jëm kanam ci latency bu gëna ndaw, leer gu gëna mag, ak lëkkaloo bu gëna am xel, di joxe ndimmbalu xarala yu gëna am doole ngir soxlay jokkoo ci saasi ci yenn liggéey yu bari.