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1. System Overview
Video surveillance is widely used in fields such as transportation, banks, buildings, hydrology, oil fields, electric power, and shipping.
The rapid development of network transmission technology and digital imaging technology has made wired and wireless networks popular in every corner of our lives, and video capture and processing are faster and clearer than ever, providing powerful technology for remote video monitoring Base.
The ZWVDO remote video monitoring system adopts advanced video compression technology, uses embedded network transmission technology, and controls the cost of the system to realize a low-cost remote digital video monitoring system that satisfies most applications. The system does not require wiring and is not monitored. Limits of distance, region, and time, surveillance video can be automatically stored.
2. Application areas
ZWVDO remote video monitoring system can be applied in the following fields:
1) Traffic monitoring field;
Video surveillance of street intersections, highway intersections, and dangerous sections can realize a wiring-free and maintenance-free monitoring system. The entire system is low-cost. One monitoring center monitors a large number of monitoring points, and multiple monitoring centers can monitor the same monitoring point. Perform monitoring, which is very difficult to achieve in an analog monitoring system.
2) Bus management;
The operation status of the bus is monitored, and the management center can check the conditions of the carriages of different vehicles.
3) Supermarket monitoring system;
Video surveillance of supermarkets and other public places.
4) Home monitoring;
When on a business trip, video surveillance of the situation at home.
5) Shop monitoring;
Security monitoring of small shops;
6) Dangerous goods transportation monitoring;
7) Hydrological video monitoring;
8) Oilfield video surveillance;
9) Video surveillance of construction sites and ships;
10) All other places where video surveillance was originally used.
3. System structure
The system block diagram of ZWVDO remote video monitoring system is shown in Figure 1.
After the video monitoring terminal surfs the Internet via GPRS/CDMA wirelessly, the video data compressed by MPEG4 is transmitted to the monitoring server using TCP data packets. The monitoring server software decompresses the video and displays it and stores it at the same time.
4. Video Server
In the wireless video surveillance system, the video server is the main product, which completes the functions of image collection, compression, wireless transmission and pan-tilt control.
The video server adopts a high-performance industrial computer structure, with 4 channels of video input, and 4 channels of pan-tilt control, with video recording function, narrowband video server ZWVDO product, this product has 4 channels of analog video input. It can be connected to the mobile network dedicated PCMCIA MODEM (CDMA/CPRS) and other networks, built-in dynamic network connection routing, you can directly enter the CDMA account number and password, support PPOE mode, and support dynamic domain name registration.
System structure diagram:
4.1 ZWVDO product features
ZWVDO has the following characteristics:
Support 12 VDC or 110/220 AC
PCMCIA port for direct dialing to the network
1-4 analog video input (NTSC/PAL)
High quality video
Built-in 20GB hard drive
Motion video detection
192 bits (PAN/T1LT/200M)
PTZ probe control (PAN/TILT/Z00M)
Ethernet interface (LANWAN)
Client software
Dial directly from the PDA to the server
Indoor
Backup
The size of the hard disk configuration can be selected according to the recording time requirements. When an incident occurs, the manager can use the USB flash memory to back up the incident video data on the spot, and back up and read it through the remote network.
Remote video transmission
ZWVDO video server adopts optimized MPEG4 compression algorithm, which has the characteristics of fast transmission speed and small space occupation. The system has the function of transmitting video through CDMA/GPRS. If the bandwidth is sufficient, it can transmit 5 frames per second. It can also achieve 7 frames/sec/channel under 17K bandwidth. The system supports dynamic IP addresses, and can realize remote network connection through domain name registration. You don’t need to remember the complicated and changeable IP address when you visit, only the registered domain name can be accessed.
5. Central monitoring part
In the main control center, you can control any way of the network video. The control buttons of the lens and the pan-tilt are on the real video panel. All the control functions can be realized with the mouse. The operation is simple, the browsing is intuitive, and the reflection is quick. .
5.1 Network permissions
All people who browse videos through the network need to be authorized through the network. Since the transmission of the network is encrypted, any individual cannot browse the video without the network authorization. In addition, the authority is divided into multiple levels. Some levels can only browse videos, some levels can be viewed and controlled, and others are administrator rights, which can manage any server.
5.2 Equipment controlled by the center
5.2.1 Mobile device control
The center can use smart phones or PDAs to view video images. Smart phone, open GPRS or CDMA1x data communication service (using Symbian/Smartphone/WinCE/PPC2002-03, note: Linux is not supported)
Mobile phone client software SV-Phone-Client
Mobile phone operating system: Series60, UIQ
The latest version: 1.05
Applicable mobile phone:
Sony Ericsson P802 P908 P910C
Nokia 3650 3660 7610
Siemens SX1
Dopod 686 696 700 565 818
Panda e88 CH860
Daxian CU928
Lenovo ET560 ET960 XP618 ET280
PDA with wireless Internet access (using WINCE/PPC2002/PPC2003, note: PALM-OS is not supported)
5.2.2 PC control
Ordinary desktop or laptop computer, you can surf the Internet (using WINDOWS operating system, note: MAC-OS is not supported), ADSL, PSTN, CDMA, GPRS can be used to surf the Internet.
6. Product parameters
6.1 Parameter description
The parameters of the ZWVDO narrowband video transmission server are shown in the table below.
Table 1 Parameter table of ZWVDO narrowband video transmission server
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6.2 Transmission rate description
Reference table for the number of picture frames under different bandwidths:
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7. System configuration instructions
The configuration of ZWVDO wireless remote video monitoring system includes 4 parts:
Video input device;
ZWVDO wireless video server;
Wireless transmission network card;
Central control equipment and software. 1
The specific configuration of the system is shown in Table 3 below.
Table 3 System configuration description
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9. Copyright Statement
This document is a product description document of Shanghai Zhengwei Digital Technology Co., Ltd. All rights reserved. No one may copy, tamper with, or quote all or part of the content of this document without written consent.
The company reserves the right to interpret the contents of this document.
The company reserves the right to change product specifications and document versions without prior notice to users of this document.
Shanghai Zhengwei Digital Technology Co., Ltd.
Contact: Chu Shitao
Phone: 021-64087245-812 021-64325603-812
Mobile phone: 13564797620
E-mail: [email protected]
Website: www.zwtech.com.cn
QQ: 171187075
Address: Room 1102, Block C, Everbright Convention and Exhibition Center, No. 70, Caobao Road, Xuhui District, Shanghai
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