CCTV truong hoc: Huong dan hoan chinh ve camera an ninh
Truong hoc doi mat voi nhung thach thuc an ninh doc dao doi hoi he thong CCTV duoc thiet ke can than, ket hop giua an toan va quyen rieng tu cua hoc sinh. Tu ngan chan truy cap trai phep den ghi lai su co, camera hien la thanh phan tieu chuan cua co so ha tang truong hoc hien dai. Huong dan nay bao gom bo tri camera, lua chon thiet bi, tuan thu quy dinh ve quyen rieng tu va thiet ke he thong cho co so giao duc.
Muc luc
Tai sao truong hoc can CCTV
An ninh truong hoc da tro thanh van de then chot doi voi quan ly, phu huynh va cong dong tren toan the gioi. Theo thong ke, khoang 77% truong cong lap tai Hoa Ky su dung camera an ninh, va xu huong nay mang tinh toan cau -- truong hoc o Chau Au, Chau A va Uc dang trien khai cong nghe giam sat nhu mot phan cua chien luoc an ninh toan dien.
Muc tieu chinh cua CCTV truong hoc la ran de va ghi chep. Camera dat o vi tri de thay tai cac diem vao va hanh lang ngan chan khach khong duoc phep, giam pha hoai va bat nat, dong thoi cung cap bang chung. Nghien cuu cho thay truong hoc co he thong CCTV duoc bo tri tot ghi nhan giam 20-30% toi pham tai san so voi truong khong co giam sat.
Yeu cau tuan thu cung thuc day trien khai CCTV. Nhieu khu vuc truong hoc yeu cau camera an ninh nhu mot phan trong ke hoach an toan cua ho. Cong ty bao hiem thuong cung cap muc phi thap hon cho truong hoc co he thong giam sat duoc ghi chep day du. He thong duoc thiet ke tot khong con la tuy chon -- do la ky vong co ban tu co quan quan ly, bao hiem, phu huynh va cong dong.
Cac khu vuc chinh can phu song
Truong hoc co su ket hop doc dao giua cac khu vuc trong nha va ngoai troi, moi khu vuc co yeu cau giam sat khac nhau.
Loi vao chinh va cua ngoai
Moi cua ngoai la diem xam nhap tiem tang cho nguoi khong duoc phep. Loi vao chinh can co camera do phan giai cao (4MP tro len) ghi hinh chat luong nhan dien khuon mat. Lap camera o do cao 2,5-3 met, goc cho phep ghi nhan khuon mat. Su dung camera co chuc nang WDR tot de xu ly do tuong phan giua anh sang trong nha va anh sang mat troi.
Cua ben, loi vao nhan vien, khu giao hang va loi thoat hiem -- moi cua deu can camera rieng. Nhieu su co an ninh truong hoc lien quan den nguoi vao qua cua ben khong duoc giam sat.
Hanh lang va cau thang
Hanh lang la noi dien ra hau het cac tuong tac cua hoc sinh ngoai lop hoc. Lap camera dome tai giao lo hanh lang va giua cac hanh lang dai. Mot camera tai giao lo chu T co the phu ba doan hanh lang cung luc. Doi voi hanh lang thang dai, dat camera cach nhau 15-20 met.
Cau thang la khu vuc rui ro cao, thuong thieu sang. Lap camera tren moi chieu nghi. Su dung vo chong pha hoai vi nam trong tam voi cua hoc sinh.
Nha an va khu vuc chung
Nha an la mot trong nhung khong gian mo lon nhat trong truong. Su dung camera goc rong hoac fisheye lap o trung tam. Nha an trung binh (300-500 m2) thuong can 3-5 camera: mot hoac hai cho khu an, mot o quay phuc vu va mot o moi loi vao.
Cac khu vuc chung khac -- thu vien, hoi truong, phong lon va phong hoat dong -- cung can duoc phu song.
Phong tap va co so the thao
Phong tap la thach thuc do the tich lon va tran cao. Lap camera tren tuong (4-5m) thay vi tren tran co the cao 8-10m. San ngoai troi phu bang camera bullet co IR de giam sat ngoai gio.
Camera tuyet doi khong duoc huong vao phong thay do, nha tam hoac loi vao khu thay do.
Bai do xe va khu don tra
Bai do xe truong hoc can phu song cho su co giao thong, truy cap trai phep va an toan hoc sinh. Lap camera bullet o do cao 4-5m tren cot hoac tuong toa nha. Tam IR nen dat it nhat 30 met.
Khu don va tra hoc sinh dac biet quan trong trong gio den buoi sang va gio ve buoi chieu.
San choi va khu vuc ngoai troi
San choi la noi hoc sinh nho hon trai qua thoi gian khong giam sat trong gio nghi. Camera nen phu toan bo duong hang rao, dac biet la o via he cong cong. Lap camera tren tuong toa nha o do cao 3-4m.
Camera ngoai troi phai co vo IP66/IP67 va bo loc IR tu dong de hoat dong ngay/dem.
Phong may chu va khu vuc hanh chinh
Phong may chu chua ha tang CNTT quan trong va he thong du lieu hoc sinh. Camera rieng tai loi vao va ben trong la can thiet. Quay le tan chinh nen co camera phu khu vuc quay va phong cho.
Loai camera cho truong hoc
Truong hoc su dung ket hop cac loai camera, moi loai duoc dieu chinh cho cac khu vuc va muc dich giam sat khac nhau.
Camera dome (trong nha)
Lua chon pho bien nhat cho noi that truong hoc. Vo IK10 chong pha hoai chiu duoc su tac dong cua hoc sinh. Ly tuong cho hanh lang, nha an, thu vien. Do phan giai toi thieu 2MP de quan sat, 4MP tai loi vao.
Camera bullet (ngoai troi)
Lua chon tieu chuan cho giam sat ngoai troi truong hoc. Den IR dam bao tam nhin 30-50m. Su dung cho bai do xe, chu vi toa nha, san choi. Chon model IP67 voi ong kinh varifocal 2,8-12mm.
Camera PTZ (bai do xe va co so the thao)
Phu song linh hoat cac khu vuc ngoai troi rong. Mot camera PTZ co the phu khu vuc can 3-4 camera co dinh. Cau hinh tuyen tuan tra tu dong. Camera PTZ nen bo sung cho camera co dinh, khong thay the chung.
Camera fisheye (khong gian mo lon)
Camera fisheye 12MP ghi hinh goc nhin 360 do va co the thay the 3-4 camera dome tieu chuan. Tot nhat cho nha an, phong tap va sanh vao nhu camera tong quan bo sung.
Phuong phap bo tri camera tot nhat
Do cao lap dat
Camera trong nha o 2,5-3,5m tren hanh lang va khu vuc chung. Phong tap tren tuong o 4-5m thay vi tren tran. Camera ngoai troi o 3-5m tren toa nha, 4-5m tren cot bai do xe.
Goc camera
Camera tai loi vao goc 15-30 do huong xuong, khong huong thang xuong dinh dau. Camera hanh lang voi ong kinh goc rong (2,8mm). Tranh huong camera vao cua so do anh sang nguoc.
Anh sang
Chon camera co bo loc IR tu dong cho khu vuc co anh sang thay doi. Camera ngoai troi phai co IR tam toi thieu 30m. Cau thang co the can camera co do nhay cao trong dieu kien thieu sang.
Khu vuc rieng tu
Day la van de quan trong nhat doi voi CCTV truong hoc. Nha ve sinh, phong thay do va nha tam phai duoc loai tru hoan toan khoi pham vi camera. Su dung mat na quyen rieng tu tren camera co truong nhin co the bao gom nhung khu vuc nay. Ghi chep cau hinh mat na rieng tu va xem xet hang nam.
Quyen rieng tu va khia canh phap ly
He thong CCTV trong truong hoc hoat dong trong moi truong phap ly dac biet nhay cam vi ghi hinh nguoi chua thanh nien. Tuan thu quy dinh bao ve du lieu la bat buoc.
Tai Lien minh Chau Au, GDPR ap dung day du cho CCTV truong hoc. Truong hoc phai thuc hien Danh gia Tac dong Bao ve Du lieu (DPIA) truoc khi lap camera, thiet lap co so phap ly xu ly, xac dinh thoi gian luu tru, dat bien bao ro rang tai khu vuc duoc giam sat va chi dinh Can bo Bao ve Du lieu (DPO). Tre em duoc bao ve dac biet theo GDPR.
Bien bao la yeu cau chung. Dat bien bao ro rang tai moi loi vao truong hoc va tren chu vi cac khu vuc giam sat ngoai troi. Chinh sach luu tru nen quy dinh 30-90 ngay luu tru voi tu dong ghi de sau thoi gian xac dinh.
Ke hoach mang va luu tru
He thong CCTV truong hoc tao ra luong luu luong mang dang ke. Camera 4MP truyen H.265 o 15 fps tao ra 4-6 Mbps. Truong hoc voi 50 camera can khoang 200-300 Mbps bang thong lien tuc. Rat khuyen khich chay CCTV tren VLAN rieng, tach biet voi mang giao duc va hanh chinh cua truong.
50 camera ghi hinh 4MP, H.265, 15fps se su dung khoang 80-120 TB cho 30 ngay luu tru hoac 240-360 TB cho 90 ngay. Su dung o cung cap doanh nghiep (WD Purple hoac Seagate SkyHawk). Cau hinh RAID 5 hoac RAID 6 bao ve truoc loi o cung.
Tich hop kiem soat truy cap
He thong an ninh truong hoc hien dai tich hop CCTV voi kiem soat truy cap dien tu, quan ly khach va he thong phan ung khan cap. Voi he thong tich hop, moi su kien truy cap duoc tu dong lien ket voi ban ghi camera tuong ung.
Tich hop voi thu tuc phong toa la then chot. Khi phong toa duoc kich hoat, he thong CCTV nen tu dong chuyen sang che do hien thi tat ca camera chinh, dam bao nhan thuc tinh huong ngay lap tuc cho dich vu cap cuu va quan ly.
Thong so ky thuat camera mau
| Khu vuc | Loai camera | Do phan giai | Ong kinh | Cao lap dat |
|---|---|---|---|---|
| Loi vao chinh | Dome (WDR) | 4-8MP | 2,8-4mm | 2,5-3m |
| Cua ben | Dome / Bullet | 4MP | 2,8mm | 2,5-3m |
| Hanh lang | Dome | 2-4MP | 2,8mm | 2,5-3,5m |
| Cau thang | Dome (Chong pha) | 2-4MP | 2,8mm | 2,5-3m |
| Nha an | Fisheye / Dome | 8-12MP / 4MP | 1,05mm / 2,8mm | 3-4m |
| Phong tap | PTZ / Bullet | 4-8MP | 4,8-120mm / 2,8-12mm | 4-5m |
| Bai do xe | Bullet IR | 4-8MP | 2,8-12mm varifocal | 4-5m |
| San choi | Bullet IR | 4MP | 2,8-8mm | 3-4m |
| Phong may chu | Mini dome | 4MP | 2,8mm | 2,5-3m |
Tat ca camera ngoai troi nen co vo IP66/IP67 voi IR toi thieu 30m. Camera trong nha tai khu vuc hoc sinh tiep can nen co vo IK10 chong pha hoai. Su dung nen H.265 cho tat ca camera.