*Monitoring plan

1、 Overview

The computer digital television monitoring system is a comprehensive monitoring and management system that integrates real-time image monitoring and recording, image technology processing, alarm signal processing, multimedia technology, and digital hard disk recording. Its establishment and use enable security personnel and supervisors to have a comprehensive view of the situation on site without having to physically visit, greatly improving work efficiency and enabling post event investigation of the situation that occurred, providing accurate, timely, and effective information services for decision-making.

This plan mainly confirms the design requirements and basis, and combines the on-site location, equipment, and control room configuration and implementation goals according to the requirements and basis to complete the design main body of the plan. At the same time, the main design basis and technical indicators of the system are determined, and the control console of the computer room is designed according to actual needs. Based on the design, we describe the selection requirements and functions of the product, and estimate the overall project cost for the implementation of the plan.

2、 Design requirements

1. A reasonable security closed-circuit computer monitoring system is formed by combining the world's advanced fully digital compression monitoring system with traditional monitoring systems.

2. The camera installed in the super room can clearly see the situation of the on-site personnel.

3. The system should use a computer digital hard drive for full real-time recording of images, which should be clear and without omissions.

4. The system has scalability. The system has high reliability, long lifespan, and easy maintenance.

3、 Design Basis

Design Specification for Industrial Television System Engineering (GBJ115-87)

Technical Specification for Civil Closed Circuit Surveillance Television Engineering (GB50198-94)

Technical Specification for Security and Prevention Engineering Procedures (GA/T75-94)

Technical Specification for Security TV Monitoring Engineering (Discussion Draft)

Code for Design of Communication Grounding in Industrial Enterprises (GBJ79-85)

Code for Construction and Acceptance of Grounding Devices in Electrical Equipment Installation Engineering (GB50169-92)

4、 Computer monitoring system

Computer monitoring system is an image monitoring application technology used for security prevention and management. Collect valuable image information and understand the decision-making conditions for emergencies. At the same time, provide effective information and evidence for event filing.

1. Control system

The computer digital monitoring system has advantages that traditional "analog" monitoring systems cannot match. It uses high-performance PCs to replace the large number of monitors, recorders, image processors, video switchers, and matrix systems required for traditional "analog" control systems, simplifying the system and greatly improving its reliability.

The images of the objects captured by the computer digital monitoring system are recorded in the computer hard disk through digital compression technology, and the monitored objects are automatically and continuously recorded. After the hard disk is full, the stored images will be automatically deleted in a loop. The system automatically cycles based on the worksheet set by the user, without the need for manual intervention, achieving fully automated management and fundamentally achieving unmanned operation. Once the system encounters a power outage, it can automatically resume operation.

The system can easily and real-time retrieve and replay stored images, and can retrieve and replay them by time and camera. Due to the use of advanced digital processing technology, the image display quality is higher, the playback image is stable and clear, and can be read and written repeatedly. There is no signal attenuation and wear problem of video tapes that exist in traditional monitoring systems, and there is no need to purchase and store a large number of video tapes. The system overcomes the shortcomings of traditional systems and has a good human-machine interface, making operation easier to learn, more intuitive, and daily maintenance easier.

The system can be transmitted through an existing local area network and connected to other computers. Computers on the network can view and control the monitoring system based on their priority levels. The control system of the super room adopts a series of multi-channel digital hard disk monitoring systems. The system integrates multiple functions such as multi screen display, image compression encoding/recovery decoding, digital recording/real-time playback, image backup/restoration, and camera alarm control, which can meet the comprehensive functional requirements of modern security; The fully Chinese menu settings and multifunctional operations (monitoring display, recording and saving, search and playback, image backup, network transmission, and camera control are synchronized) make the operation very simple; By adopting MPEG-1 compression technology and motion detection technology, the average frame data volume of images is reduced, saving hard disk capacity; The intelligent search function makes replaying event images very simple and fast, greatly reducing search time; Users can use a local area network for network storage, image playback, and lens control, forming a networked large-scale monitoring system; It can completely replace traditional analog monitoring systems such as multi screen processors, long-term video recorders, video printers, etc., and has simple operation, stability, long service life, low system cost and long-term management, and low maintenance costs. It is currently the most advanced digital monitoring equipment, representing the direction of digital security technology development.

2. Camera configuration and performance

At present, the structure and technology of cameras tend towards miniaturization, high performance, and low power consumption. The improvement in performance is reflected in high definition, intelligent backlight processing, automatic color grayscale compensation, electronic zoom, and other aspects. With the rapid development of electronic technology in today's society, technology is constantly evolving, and the replacement of old and new is accelerating. It is difficult to maintain the advanced advantages of any system for a long time. Therefore, in the selection of equipment, practicality and feasibility should be considered, as well as the maintainability of the system.

The camera gimbal control enables a camera to observe multiple directions, and accessories include a gimbal to control the observation direction and a zoom lens to focus on different depth of field observation objects. The camera adopts high-definition color camera.

3. Image processing and recording

In the design requirements of the system, it is emphasized that all images should be recorded in real-time for future reference. In the design, a 16 channel computer digital hard disk recorder will be used to record on the hard disk at 75 frames per second, ensuring full real-time playback of the image and high integrity of the recorded image.

In terms of image display, one 17 "color monitor is used to display 16 images each, comprehensively monitoring the entire area.

5、 Main product performance indicators

System: Windows NT platform, stable operation*

Multi functional and intelligent operation: monitoring/recording/playback/transmission/control can work in parallel, with a high degree of intelligence

Real time video display: Each image is displayed in real-time, fully meeting the requirements of real-time monitoring on site, and can be displayed on 4/6/8/9/10/12/16 screens

Real time audio and video recording: 4-16 channels of audio and video are recorded in real-time with good synchronization

Video motion detection: Set the prevention detection area and sensitivity, and automatically record videos when there are moving targets in the prevention area

Compression method: using MPEG-1/M-JPEG DSP compression book, recording speed of 25/30 frames per second

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