Mbali Yojambulira Nthawi Yokha pa CCTV Recordings
Mu machitidwe achitetezo amakono, makamera a CCTV samangokhala zida zowunikira maso komanso ngati zida zolembera zomwe zimasunga umboni wa zochitika motsatira nthawi. Chimodzi mwazinthu zofunika kwambiri - koma nthawi zambiri sizimaganiziridwa - ndi kusindikiza nthawi yokha pa CCTV. Mbali iyi imawonetsa nthawi ndi tsiku mwachindunji pa kanemayo, kapena imasunga ngati metadata yomwe ingapezekenso ikafunika. Nkhaniyi ikufotokoza tanthauzo la kusindikiza nthawi yokha, momwe imagwirira ntchito, chifukwa chake ndikofunikira, komanso njira zabwino zowonetsetsa kuti mbali iyi ndi yolondola komanso yodalirika ikafunika.
Kodi Kujambula Nthawi Yokha pa CCTV n'chiyani?
Kujambula nthawi yokha ndi chinthu chomwe chimalola makina a CCTV kuwonjezera zambiri za tsiku ndi nthawi ku kanema wojambulidwa. Izi nthawi zambiri zimawonetsedwa ngati kachidutswa kakang'ono ka mawu pakona ya sikirini. Pa makina ena, kuwonjezera pa kachidutswa, nthawi imasungidwanso ngati metadata mkati mwa fayilo ya kanema, zomwe zimapangitsa kuti kusaka ndi kulumikiza kukhale kosavuta.
Zizindikiro za nthawi nthawi zambiri zimakhala ndi:
– Tsiku (mawonekedwe ake akhoza kukhala DD/MM/YYYY kapena YYYY-MM-DD)
– Maola, mphindi, masekondi (HH:MM:SS)
- Nthawi zina madera a nthawi (monga GMT + 7)
- Nthawi zina kamera kapena chizindikiro cha njira (Cam 01, Lobby, Warehouse)
Ndi chidziwitsochi, kanemayo samangowonetsa "zomwe zinachitika", komanso "pamene zinachitika" molondola.
N’chifukwa Chiyani Zizindikiro za Nthawi Ndi Zofunika Kwambiri?
1. Kulimbitsa Umboni wa Kufunika kwa Zolembazo
Mu kafukufuku, zithunzi za CCTV nthawi zambiri zimagwiritsidwa ntchito ngati umboni wotsimikizira. Zizindikiro za nthawi zimathandiza kukhazikitsa ndondomeko ya zochitika ndikugwirizanitsa zithunzizo ndi zochitika zina, monga malipoti achitetezo, zolemba zolowera pakhomo, kapena zochitika za cashier. Popanda zizindikiro za nthawi, zithunzizo zingakhale zokayikitsa: zochitikazo zingawoneke bwino, koma nthawi yake si yodziwika.
2. Zimapangitsa kuti kusaka zojambulidwa kukhale kosavuta
Chimodzi mwa zovuta zazikulu pa kayendetsedwe ka CCTV ndikupeza kanema winawake pakati pa maola kapena masiku a kanema. Ndi zizindikiro zolondola za nthawi, ogwiritsa ntchito amatha kulumphira mwachindunji ku nthawi ya chochitika, monga "02:13 a.m.," popanda kubwereza kanemayo kuyambira pachiyambi.
3. Kugwirizanitsa Makamera Angapo
M'maofesi, m'nyumba zosungiramo zinthu, m'masukulu, kapena m'malo opezeka anthu ambiri, nthawi zambiri pamakhala makamera angapo. Kafukufuku nthawi zambiri amafuna kujambula kuchokera mbali zosiyanasiyana nthawi imodzi. Nthawi yokhazikika pakati pa makamera imalola kuti pakhale kulumikizana mwachangu. Ngati mawotchi amasiyana ngakhale ndi mphindi zochepa pakati pa makamera, kusanthula zochitika kungasokonezedwe ndipo dongosolo la nthawi lingakhale lovuta.
4. Imathandizira Automation ndi Analytics
Machitidwe ambiri amakono amagwiritsa ntchito kusanthula makanema, monga kuzindikira mayendedwe, kuzindikira ma plate a layisensi, kapena kuwerengera anthu. Deta yowunikira nthawi zambiri imasungidwa ndi masitampu a nthawi. Masitampu olondola a nthawi amatsimikizira kuti zochitika zomwe zapezeka zili ndi nthawi yolondola yofotokozera ndi kuwerengera.
Momwe Kujambulira Nthawi Kokha Kumagwirira Ntchito
Kawirikawiri, nthawi yowonera makanema a CCTV ingachokere m'magwero angapo:
1. DVR/NVR/Kamera Yoyang'ana Mkati
Zipangizo zojambulira (ma DVR a makamera a analogi, ma NVR a makamera a IP) ali ndi mawotchi amkati. Makamera ena a IP amasunganso mawotchi awoawo. Ngati sakugwirizana, mawotchi amkati awa amatha kuyenda pakapita nthawi (kusuntha kwa wotchi), makamaka pazida zotsika mtengo kapena zakale.
2. Lumikizani ndi NTP (Network Time Protocol)
Kuti zinthu ziyende bwino, machitidwe ambiri amapereka njira yolumikizirana yokha kudzera mu NTP. Zipangizo zimafananiza nthawi yawo ndi seva ya nthawi pa intaneti kapena seva yakomweko ya kampani. Iyi ndiyo njira yodziwika bwino komanso yovomerezeka, chifukwa imasunga wotchi yokhazikika komanso yogwirizana pazida zosiyanasiyana.
3. Kugwirizanitsa ndi Centralized System
Mu malo a bizinesi, nthawi imatha kulumikizidwa kudzera mu seva yamkati (monga seva ya domain kapena seva yodzipereka). Njira imeneyi imawonjezera ulamuliro, makamaka pamene intaneti ili yoletsedwa.
Chidindo cha Nthawi Chophimba ndi Metadata: Kodi Kusiyana N'chiyani?
Kuphimba Chidindo cha Nthawi
- Yawonedwa mwachindunji muvidiyoyi.
- N'zovuta kuchotsa popanda kusintha kanemayo.
- Zothandiza kwambiri pamene kanemayo watumizidwa ku fayilo yanthawi zonse ndikuseweredwa pa chipangizo chilichonse.
Vuto lake: Ngati mawuwo akukhudza zinthu zofunika (monga nkhope kapena ma layisensi), akhoza kusokoneza. Chifukwa chake, kuika bwino mawuwo ndi kukula kwake n'kofunika kwambiri.
Chizindikiro cha nthawi ngati Metadata
- Nthawi zambiri sizimawoneka pazenera.
- Amagwiritsidwa ntchito pofufuza, kulemba mndandanda, ndi kusewera mu mapulogalamu ena.
- "Yabwino" kwambiri, koma zimadalira wosewera kapena pulogalamu yomwe imayithandizira.
Mwabwino, dongosololi limathandizira zonse ziwiri: ma overlay a umboni wowoneka ndi metadata kuti mufufuze mwachangu.
Mavuto Ofala Ndi Ma CCTV Timestamp
1. Wotchi yazima (yolakwika)
Zifukwa zake ndi monga kusagwiritsa ntchito NTP, batire ya CMOS yofooka (m'ma DVR ena), kuzimitsa magetsi pafupipafupi, kapena makonda olakwika pamanja. Zotsatira zake zimakhala zoopsa: zolemba zimakhala zovuta kugwiritsa ntchito ngati zowerengera nthawi ndipo zimatha kuyambitsa kukayikira panthawi yowunikira.
2. Kusintha kwa Nthawi Pambuyo pa Chochitikacho
Ngati woyang'anira asintha wotchi ya chipangizo pambuyo pa chochitika, nthawi yake ikhoza kukhala yosokoneza. Ngakhale cholinga chake ndi kungokonza vutoli, kusinthaku kungabweretse mafunso okhudza kukhulupirika kwa umboni. Chifukwa chake, kusintha kwa kasinthidwe kuyenera kulembedwa ndikugwiritsidwa ntchito motsatira njira zomveka bwino.
3. Malo Olakwika a Nthawi
Zolakwika za nthawi zimapangitsa kuti zojambulira ziwoneke ngati "zili patsogolo" kapena "zikubwerera m'mbuyo" kwa maola angapo. Izi nthawi zambiri zimachitika pazida zomwe zimagwiritsa ntchito makonda okhazikika a fakitale kapena zomwe zimachokera ku nthawi ya dziko lina.
4. Mtundu wa Tsiku Losokoneza
Kapangidwe ka DD/MM/YYYY poyerekeza ndi MM/DD/YYYY nthawi zambiri kamayambitsa kutanthauzira molakwika, makamaka pamene tsiku ndi mwezi zonse zili <=12. Kwa makina omwe ali ndi ogwiritsa ntchito ambiri, mawonekedwe a ISO (YYYY-MM-DD) nthawi zambiri amakhala otetezeka kwambiri. Njira Zabwino Zogwiritsira Ntchito Nthawi Zolondola 1. Yambitsani NTP pa DVR/NVR ndi makamera onse a IP, kenako tchulani seva yodalirika ya NTP. 2. Ikani nthawi yofanana (monga WIB/GMT+7) ndikuwonetsetsa kuti zipangizozo zikutsatira zomwezo. 3. Tsekani mwayi wolowera: chepetsani omwe angasinthe nthawi ndi makonda a dongosolo. 4. Gwiritsani ntchito UPS ya DVR/NVR ndi zida za netiweki kuti mupewe nthawi kuti isakhazikitsidwenso magetsi akazima. 5. Kuwunika nthawi zonse: onani kulondola kwa nthawi osachepera kamodzi pamwezi, makamaka m'malo omwe magetsi amazima pafupipafupi kapena intaneti yosakhazikika. 6. Ikani ma overlay kuti asaphimbe madera ofunikira (zitseko, ma cashier, nkhope, ma layisensi plate). 7. Sungani zolemba zosintha: zida zabwino zimalemba nthawi yomwe kasinthidwe kanasinthidwa komanso ndi ndani. Izi zimathandiza kusunga kudalirika kwa zojambulidwazo. Zizindikiro za nthawi mu Nkhani Yovomerezeka ndi Yotsatira Malamulo Nthawi zina, zithunzi za CCTV zimagwiritsidwa ntchito popereka malipoti amkati, zopempha za inshuwaransi, kapena milandu. Zizindikiro za nthawi zosasinthika komanso zodalirika zimathandiza kusonyeza kuti zithunzizo zili ndi nthawi yomveka bwino. Ngakhale kuti zizindikiro za nthawi sizomwe zimapangitsa kuti umboni ukhale wolondola, kusakhalapo kwawo kapena kusakhala kolondola kungafooketse udindo wa munthu amene akupereka zithunzizo ngati umboni wochirikiza. Kuphatikiza apo, m'makampani omwe ali ndi mfundo zachitetezo cha deta, kusindikiza nthawi kumakhudzananso ndi kutsatira malamulo: nthawi yomwe deta yalembedwa, nthawi yomwe yasungidwa, komanso nthawi yomwe yachotsedwa. Zonsezi zimadalira nthawi yolondola ya dongosolo. Kutsiliza Kusindikiza nthawi yokha pa zithunzi za CCTV ndi gawo lofunikira kwambiri pa dongosolo lachitetezo. Zimathandiza kuonetsetsa kuti zithunzizo si zolemba zowoneka zokha, komanso zolemba zomwe zimathandiza kusaka, kulumikizana, kufufuza, ndi kufufuza. Komabe, maubwino awa amawonjezeka pokhapokha ngati zizindikiro za nthawi zasungidwa molondola kudzera mu kulumikizana kwa NTP, makonda oyenera a nthawi, komanso njira zoyendetsera bwino. Ngati mukuyika kapena kuyang'anira CCTV, onetsetsani kuti nthawi yowonetsera siili "yoyatsidwa" yokha, komanso yolondola, yogwirizana, komanso yotsimikizika. Chifukwa pakachitika ngozi, zinthu zazing'ono monga nthawi ndi tsiku nthawi zambiri zimakhala zofunika kwambiri popanga chisankho choyenera.
