Ɔberɛfɛw da 15, afe 2020
Ahobammɔ nhyehyɛe a wɔde hwɛ nneɛma so no mu ade titiriw ne ‘wohu na emu da hɔ.’ Network cable a wɔansɔ anhwɛ kyerɛ sɛ wunnim sɛ ebia ebetumi de HD video nsɛnkyerɛnne akɔma pintinn, sɛ ebetumi ayɛ adwuma wɔ PoE power mode ase, anaasɛ sɛ ebia breaks anaa interference sources wɔ mfinimfini.
Ahobammɔ nhyehyɛe a wɔde hwɛ nneɛma so no mu ade titiriw ne ‘wohu na emu da hɔ.’ Network cable a wɔansɔ anhwɛ kyerɛ sɛ wunnim sɛ ebia ebetumi de HD video nsɛnkyerɛnne akɔma pintinn, sɛ ebetumi ayɛ adwuma wɔ PoE power mode ase, anaasɛ sɛ ebia breaks anaa interference sources wɔ mfinimfini. Wɔ security cabling engineering mu no, network sɔhwɛ nyɛ ‘anamɔn foforo’ — ɛyɛ ɔkwan a etwa to a wɔfa so bɔ wɔn ho ban ma delivery quality.
Adwene a ɛnteɛ a wɔtaa nya ne sɛ wɔsɔ ntwamutam nhama foforo hwɛ wɔ adwumayɛbea hɔ na enhia sɛ wɔsɔ hwɛ bio. Nokwarem no, nhama betumi asɛe bere a wɔde rekɔ, wɔkora so, wɔde si hɔ, na wɔrewie — bend radius a ɛboro so, tumi a ɛtwetwe, scrapes fi anoano a ɛyɛ nnam, loose RJ45 crimping — ne nyinaa betumi asɛe link adwumayɛ komm. Edu bere a obi a ɔde di dwuma bɛbɔ amanneɛ sɛ ‘mfoninitwa mfonini no reyɛ ayɛ basaa’ anaasɛ ‘PTZ no ntumi nkyinkyin’ no, ɛtaa yɛ den sɛ wobehu nea ɛde ba no ntini afi ne fibea.
PoE (Power over Ethernet) yɛ mfiridwuma a ɛho hia sen biara wɔ ahobammɔ sohwɛ nhyehyɛe ahorow mu no mu biako. Mfoninitwa mfiri de data ne ahoɔden nyinaa fa ntwamutam nhama biako so de mena, na eyi ka ne nea ɛyɛ den a ɛwɔ anyinam ahoɔden nhama a ɛde ne ho so no fi hɔ. Nanso, PoE de ahwehwɛde a ɛkorɔn koraa to link quality so sen data kronkron a wɔde mena — ahoɔden a ɛnnɔɔso betumi ama mfoninitwa mfiri asan afi ase mpɛn pii, ada mfonini a ɛnyɛ ne kwan so adi, anaasɛ mpo akɔ offline koraa.
PoE sɔhwɛ nyɛ sɛ wɔbɛhwɛ sɛ ebia nhama no yɛ adwuma anaa; ɛhwehwɛ nso sɛ wɔsusuw ahoɔden a wɔde ma, anyinam ahoɔden, ne ahoɔden. Nhama a ne tenten yɛ mita 80 a ɛwɔ waya gauge a ɛyɛ tratraa anaasɛ connector contact resistance a enye betumi ama PoE voltage a ɛwɔ camera no awiei no akɔ fam asen adwumayɛ aboboano. Wɔ FangService ntwamu sɔhwɛ adwinnade line mu no, PK69 series ntwamutam mfiridwuma adwinnade no boa PoE tumi sɔhwɛ, ɛkyerɛ bere ankasa mu ahoɔden, mprempren, ne tumi data de boa mfiridwumayɛfo ma wohu ntɛm sɛ ebia nkitahodi no di PoE ahoɔden ahwehwɛde ahorow ho dwuma anaa.
Wɔ ahobammɔ a wɔhwɛ so ho mfiridwuma mu no, sɔhwɛ a wɔtaa hwehwɛ ne sɛ wɔbɛhwɛ sɛ mfoninitwa afiri no video sɛnkyerɛnne no yɛ nokware anaa. Ɔkwan a wɔfa so yɛ no ne sɛ wɔde mfoninitwa afiri no bɛka monitor anaa kɔmputa ho na wɔde nsa abu atɛn sɛ ebia mfonini no mu da hɔ na kɔla ahorow no yɛ nea ɛfata anaa. Saa kwan yi nyɛ adwuma yiye na egyina nea ɔsɔ hwɛ no adwene mu atemmu so.
Nnɛyi ntwamutam mfiridwuma nnwinnade ka video sɛnkyerɛnne sɔhwɛ dwumadi ahorow bom. FangService's PK68 series professional video tester boa IPC, AHD, TVI, ne CVI multiple coaxial HD video formats, na ɛtumi kyerɛ camera mfonini no tẽẽ a ɛnka kɔmputa ho, a overlay analysis nnwinnadeɛ (te sɛ kɔla nhwehwɛmu, grayscale sɔhwɛ, ne distortion detection). PK67 series wristband engineering adwinnade ne PK66 series portable engineering adwinnade no fata ma installation scenarios nketewa, a ɛma onipa biako tumi wie sɔhwɛ.
Wɔ ahobammɔ sohwɛ nhyehyɛe ahorow mu no, PTZ (Pan-Tilt-Zoom) control ne nsonsonoe titiriw a ɛda ‘betumi ahu’ ne ‘betumi de adi dwuma’ ntam. PTZ control signals no taa fa RS485 bus — control wires foforo abien (anaasɛ idle wire pairs multiplexed wɔ network cable no mu). RS485 wiring mfomsoɔ (te sɛ A/B line reversal), terminal resistors a ɛyera, anaa baud rate a ɛnhyia nyinaa betumi ama PTZ control adi nkogu anaasɛ latency.
FangService's network testing instrument line — PK69 ne PK68 series — nyinaa boa RS485 PTZ control testing, a ɛtumi de control ahyɛdeɛ mena na ɛhwɛ sɛ PTZ mmuaeɛ yɛ nokware. Wɔboa gyinabea nhyehyɛe a wɔahyɛ ato hɔ ne nkae, na ɛboa mfiridwumayɛfo ma wohu PTZ control mfomso ahorow ntɛm. Wɔ ahobammɔ nnwuma akɛse mu no, PTZ sohwɛ sɔhwɛ taa yɛ nea ɛyɛ mmerɛw sɛ wobebu ani agu so nanso nea efi mu ba kɛse — sɛ wontumi nni PTZ so wɔ bere a wɔde ama akyi a, ɔhaw ahorow ho ka betumi aboro ɛka a wɔbɔ wɔ nhama a wɔde di dwuma no a wɔbɛsan atwe ho.
Ɛkame ayɛ sɛ ɛka a wɔbɔ wɔ nnwinnade a wɔde sɔ ntwamutam hwɛ ho no sua koraa sɛ wɔde toto adehwere a esiw ano no ho a. Ahobanbɔ sohwɛ adwuma a ɛyɛ mfinimfini betumi afa mfoninitwa mfiri du du anaa ɔhaha pii mpo ho — sɛ mfoninitwa afiri biara a wɔbɛsɔ ahwɛ no gye yuan du du, bere a link mfomso a wonhu a wobehu wɔ adwuma no a wɔde ama akyi no betumi agye mpempem anaa mpempem pii wɔ ɔhaw ahorow a wosiesie ne nsiesie mu a, sikasɛm mu mfaso a ɛwɔ sɔhwɛ so no da adi.
Nea ɛho hia kɛse no, sɔhwɛ data ankasa wɔ mfaso a ɛtra hɔ kyɛ. Wobetumi asusuw link a wɔde PoE tumi parameters a wɔakyere agu hama so, video signal quality, ne PTZ control tebea asɔ ahwɛ ntɛm ara bere a wɔresiesie no daakye: ‘so na link yi ye bere a wɔde kɔmaa no?’. anaasɛ ‘so na saa link yi wɔ ɔhaw ahorow a ahintaw bere a wɔde kɔmaa no?’. Sɛ yɛbɛka a, link ahorow a wɔansɔ anhwɛ no yɛ nnaka tuntum bere a wɔresiesie no. FangService's network testing instrument line no kata ahiadeɛ a ɛdi mũ no so firi mfitiaseɛ nkitahodiɛ ho adansedie so kɔsi video nhwehwɛmu a ɛkɔ anim so, ɛboa mfiridwuma akuo ma wɔhyehyɛ sɔhwɛ gyinapɛn firi adwuma bi mfitiaseɛ. View the Network Test Instruments Collection
Ka wo project scenario ne ahwehwɛdeɛ kyerɛ yɛn, na yɛbɛma ano aduru a ɛfata no ahyia na yɛde quote ama wɔ nnɔnhwereɛ 24 ntam.
Nya Quote a Wɔde Ma KwaPK66 portable engineering tool, PK67 wristband engineering tool, PK68 professional video tester, PK69 full-featured network engineering tool — four series covering the complete needs from basic video testing to advanced PoE analysis. Supporting IPC/AHD/TVI/CVI multi-format coaxial HD, RS485 PTZ control, and PoE power testing, designed for installation, debugging, and maintenance of security monitoring systems.
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