Public Network Walkie-Talkie Adwumayɛ Nhwehwɛmu: Nkɔsoɔ Mmienu wɔ Nkitahodiɛ a Ɛyɛ Yie ne Ahotosoɔ mu

Push-to-Talk over Cellular (PoC), atetesɛm walkie-talkies a wɔayɛ no foforo, de mobile nkitahodi ntam nkitahodi di dwuma ma ɛma nkitahodi a ɛba ntɛm ara, a ɛfa mpɔtam ahorow ho, a ɛda mfaso soronko adi wɔ nneɛma a wɔde kɔ, ahobammɔ, ntɛmpɛ ho mmuae, ne nnwuma afoforo mu. Ɛnyɛ sɛ ne dwumadie na ɛkyerɛ osuahu a ɔde di dwuma no nko na mmom ɛka nkitahodiɛ mu ahotosoɔ nso tẽẽ wɔ tebea a ɛho hia mu. Nea edidi so yi hwehwɛ adwumayɛ mu nneɛma atitiriw a ɛwɔ ɔmanfo ntam nkitahodi walkie-kasa mu fi akwan horow pii so.

I. Nkitahodi a Wɔde Ka Ho: "Boundless" Nkitahodi a Ɛbu Akyirikyiri Anohyeto

Amanne kwan so walkie-talkies de ne ho to radio frequency so, a nkitahodi kwan a etu mpɔn taa yɛ kilomita kakraa bi kosi du du (egyina tumi ne nneɛma a atwa yɛn ho ahyia tebea so). Nanso, ɔmanfoɔ ntwamutam walkie-talkies nam 4G/5G anaa Wi-Fi so di nkitaho kɔ carrier networks so, wɔ nsusuiɛ mu no ɛma nkitahodiɛ a ɛnyɛ den wɔ ɔman no mu nyinaa ne wiase nyinaa mpo. Sɛ nhwɛsoɔ no, wɔ nkuropɔn mu a ɛwɔ base stations a ɛyɛ den no, sɛnkyerɛnne ahoɔden dɔɔso sɛ ɛbɛboa frɛ a ɛyɛ pintinn wɔ mmeae a wɔde kar sisi wɔ asase ase ne adan a ɛkorɔn-mu. Wɔ mmeae a ɛwɔ akyirikyiri no, bere tenten a ntwamutam a ɛkata so (te sɛ 4G sɛnkyerɛnne) wɔ hɔ no, ɔmanfo ntwamutam walkie-talkies betumi akura nkitahodi mu. Nneɛma bi a ɛkorɔn-awieɛ nso boa dual-SIM dual standby anaa automatic network switching. Sɛ network signal titiriw no yɛ mmerɛw a, nhyehyɛe no dan kɔ backup network so ntɛmntɛm, na ɛma asiane a ɛwɔ hɔ sɛ nkitahodi bɛtwa mu no so tew bio.

II. Mmuae Ahoɔhare: "Zero Latency" Optimization fi Keystroke so kɔ Voice so

Walkie-talkies botae titiriw no da "nkrasɛm a wɔde mena ntɛm ara" mu. Public network walkie-talkies no latency no nya osuahu a ɔde di dwuma no so nkɛntɛnso tẽẽ. Mfiri a edi kan a egyina 2G/3G ntwamutam so no taa nya 1-3 sekan a ɛkyɛ esiane ntwamutam bandwidth a ɛnnɔɔso nti. Nanso, mprempren mainstream 4G LTE Cat.1/Cat.4 chipsets, a wɔde VoIP protocols a wɔayɛ no yiye aka ho no, atew end-to{14}}end latency so akɔ 0.5-1.2 seconds, abɛn "press and go" osuahu a ɛwɔ atetesɛm analog walkie-talkies. 5G versions of public network walkie-talkies kɔ akyiri mpo, a ɛde latency a ɛba fam ma (theoretical latency under 100 milliseconds) na ama wɔadi nea wɔhwehwɛ wɔ tebea horow a ɛyɛ pɛpɛɛpɛ te sɛ mfiridwuma mu akyirikyiri tumidi ho dwuma. Ɛfata sɛ yɛhyɛ no nsow sɛ latency ankasa nso nya network congestion so nkɛntɛnso. Wɔ mmeae a nnipa ahyɛ hɔ ma (te sɛ kɔnsɛt ahorow) no, sɛ wɔde nneɛma ahyɛ base stations so dodo a, latency betumi akɔ soro bere tiaa bi. Nanso, mfiri dodow no ara hwɛ hu sɛ nne data a wɔde mena yiye denam QoS (Quality of Service) nhyehyɛe a ɛho hia so.

III. Ɛnne Pa ne Nea Ɛda Hɔ: Ntwitwiridii Pow ne Coding Mfiridwuma a Ɛkari pɛ

Ɔmanfoɔ ntwamutam walkie-talkies no ɔdio yiedie no anohyetoɔ wɔ ntwamutam tebea ne coding algorithm no nyinaa mu. Amanne kwan so analog walkie-talkies, bere a enni nhyɛso a wɔkyinkyim no, ɛyɛ mmerɛw sɛ anyinam ahoɔden bɛtwetwe, na ɛde dede ba. Ɔmanfoɔ ntwamutam walkie-talkies de digyital coding (te sɛ AMR-WB wideband nne ne Opus adaptive coding) di dwuma de kari pɛ wɔ pefeeyɛ ne interference pow mu wɔ bandwidth a anohyetoɔ mu. Mfiri titire boa 8kHz ne 16kHz sampling rates. 16kHz wideband coding betumi asan ayɛ high-frequency nsɛm a ɛyɛ den (te sɛ sibilant vocalizations ne ambient background sounds), na ɛma ɛfata ma tebea horow a ɛhwehwɛ sɛ wɔde nsɛm a ɛyɛ pɛpɛɛpɛ mena (te sɛ ahobammɔ nhyehyɛe ho adansedi). Bio nso, dede-canceling microphone ne echo cancellation algorithm a wɔde ka ho no yiyi ntwitwiridii te sɛ mframa dede ne mfiri anyinam ahoɔden dede no fi hɔ yiye, na ɛhwɛ hu sɛ afã abien no nyinaa betumi ate nkrasɛm atitiriw pefee wɔ adansi mmeae a dede wɔ anaa kar mmeae mpo.

IV. Battery Nkwa ne Ahotoso: Nsɛnkyerɛnne a Ɛho Hia ma Bere Tenten-Adwumayɛ

Battery nkwa a ɔmanfoɔ ntwamutam walkie-talkies wɔ no nya wɔn tumi a wɔde yɛ adwuma daa no so nkɛntɛnsoɔ tẽẽ. Mfiri a wɔtaa de di dwuma-grade taa wɔ batere ahoɔden 2000-3000mAh, a ɛma nnɔnhwerew 8{9}}12 a ɛkɔ so yɛ adwuma wɔ charge a edi mũ so (ma wɔde di dwuma a ɛyɛ mmerɛw kosi nea ɛba fam-den). Nnwumayɛfoɔ mfiri de batere akɛseɛ (4000-6000mAh) di dwuma anaasɛ ɛwɔ nsusuiɛ a wɔtumi sesa. Tumi a wɔde di dwuma nyansam (te sɛ nna mode ne low-battery throttling) trɛw adwumayɛ bere mu, a mfonini ahorow bi mpo boa bɛboro nnɔnhwerew 15 a wɔde di dwuma kɛse. Wɔ ahotoso ho no, wɔtaa de mfiridwuma mu ntwamutam intercom adan a ɛwɔ ahoɔden kɛse na ɛyɛ mfiridwuma mu plastic anaa dade, na wonya IP67 (a mfutuma ne nsuo ntumi nkɔ mu, a ɛfata ma bere tiaa mu nsuo a wɔde hyɛ mu) anaa IP68 (a ɛko tia nsuo ase a emu dɔ) dodoɔ. Wɔsan nso sɔ hwɛ wɔ nsuo a ɛtɔ gu fam (bɛboro mita 1.5) na wɔsɔ hwɛ sɛ ɛyɛ hyew a ɛkorɔn ne nea ɛba fam (-20℃to 60℃), na ɛma wotumi yɛ adwuma pintinn wɔ mmeae a emu yɛ den (te sɛ osutɔ ahum gye adwuma ne abɔnten adansi adwuma).

V. Dwumadi a Wɔatrɛw mu: Efi Mfitiase Frɛ so kosi Nyansa mu Nkɔmmɔbɔ so

Nnɛyi ɔmanfo nkitahodi nhyehyɛe ahorow akɔ akyiri asen nne nkitahodi a ɛnyɛ den, na ɛde nneɛma ahorow a mfaso wɔ so afrafra mu na ama adwuma no atu mpɔn. Sɛ nhwɛso no, GPS/Beidou gyinabea module ahorow betumi de mfiri mmeae akɔ management platforms so wɔ bere ankasa mu, na ama dispatch centers atumi ahwɛ sɛnea kuw no de di dwuma. Multimedia transmission boa sɛ wɔde mfonini ne video ntiantiaa bɛmena, na ɛma ɛyɛ nea eye ma on-site adanse a wɔboaboa ano anaasɛ wɔde mfiri tebea ho nsɛm ma. Mfiri binom nso ne Bluetooth nkitahodi (ma afiri a wɔde bɔ asom ne nsa a wɔde kasa), NFC nokwaredi (ma kwan a wɔde di dwuma), ne mpo AI nne-kɔ-nkyerɛwee, a ɛdannan nne ahyɛde ahorow no ankasa kɔ nkyerɛwee kyerɛwtohɔ mu ma ɛyɛ mmerɛw sɛ wobɛhwehwɛ mu. Saa nneɛma a wɔatrɛw mu yi ma ɛnyɛ sɛ wotumi di intercom ahiade atitiriw ho dwuma nko na mmom wɔde wɔn ho hyɛ dijitaal sohwɛ nhyehyɛe ahorow mu nso, na ɛbɛyɛ adwinnade titiriw ma nnwuma mu nyansa.

Nsɛm a wɔaboaboa ano: Adwumayɛ mu mfasoɔ a ɛwɔ ɔmanfoɔ ntwamutam walkie-talkies so no, wɔaboaboa ano wɔ nneɛma titire anan mu: ɛkata a ɛtrɛ, latency a ɛba fam, ɔdio a ɛyɛ den, ne ahotosoɔ a ɛkorɔn. Sɛ wɔde mfasoɔ a ɛwɔ mobile network infrastructure so ka ho a, ɛdi ɛyaw nsɛntitiriw a ɛwɔ atetesɛm walkie-talkies mu, te sɛ akyirikyiri a ɛsua ne dwumadie a anohyetoɔ wɔ mu ho dwuma. Ɛnam 5G ntam nkitahodi a wɔagye atom kɛse ne chip mfiridwuma nkɔso nti, ɔmanfo ntam nkitahodi walkie-kasa bɛkɔ so anya nkɔso akɔ latency a ɛba fam, pefeeyɛ a ɛkorɔn, ne adwumayɛ a nyansa wom kɛse, na ɛde mfiridwuma mu mmoa a emu yɛ den mpo ama nkitahodi ahiade ahorow a ɛwɔ hɔ ntɛm ara wɔ nnwuma ahorow mu.