Intelligent Residential Community Solution

With the continuous development of social informatization, the application of information technology has penetrated every field of human life and activity. In the field of architecture, modern living and working environments are expected not only to be comfortable, healthy, safe, reliable, efficient, and convenient, but also to adapt to the requirements of an information-based society through the use of technology and equipment.

As a result, intelligent buildings have emerged. The cooperation between the information industry and real estate in intelligent construction has become a new opportunity and hot area for real estate developers.

Components of an Intelligent Residential Community

An intelligent residential community includes:

• Integrated cabling for intelligent buildings, video surveillance systems, and building intercom systems
• Computer networks, property management systems, and video-on-demand systems
• Access control systems, parking lot management systems, and home disaster prevention systems
• Satellite TV receiving systems and multi-purpose telephones

This article mainly introduces the video surveillance system.

1. Introduction

Since the reform and opening-up period, economic development has greatly improved people’s living standards. However, economic development has also brought considerable negative effects. Especially in recent years, the number of unemployed people in society has continued to increase, making public security conditions increasingly complex. Some criminals take advantage of these conditions to commit crimes, creating serious threats to people’s lives and property and worsening the living environment.

People increasingly desire a safe living space. At the same time, criminals are using more sophisticated methods, even adopting certain high-tech means. Traditional prevention methods based mainly on human guarding are no longer sufficient to meet people’s daily security needs.

Therefore, many high-tech methods have been introduced into daily security work. These are known as technical prevention measures. Because technical prevention can detect various incidents in time and provide strong evidence for solving cases, it is receiving increasing attention.

On the other hand, as living standards improve and the pace of life becomes faster, people’s lifestyles have also changed greatly. People now devote most of their energy to work and study, leaving little time to deal with daily matters. To meet this demand, the property management industry has emerged.

With the development of this new industry, intelligent community management has also grown rapidly. If a residential community realizes intelligent management, management personnel can complete community management without leaving the control center, including data collection and standardized security management.

Therefore, the security system and intelligent management system of a residential community are indispensable parts of modern community management.

2. System Overview

The system introduced here is a comprehensive security protection system that combines matrix control technology, multi-screen intelligent processing technology, communication network technology, and linkage with an intrusion alarm system.

It not only plays a role in security protection, but also serves as a modern intelligent management system. In the control center, important areas, equipment, and personnel movements within the community can be monitored continuously and in real time at close range. Video can also be recorded and archived, effectively helping prevent various unexpected incidents.

3. System Features and Performance

1. Low-light color cameras are less affected by lighting conditions.
2. Dome-shaped PTZ units and housings are attractive and easy to clean.
3. Manual and automatic switching are supported, and switching time can be freely set.
4. PGM programming is supported, with no limit on switching sequence or interval time.
5. Group switching is supported, allowing different combinations of switching on different monitors.
6. The system has time, date, and camera title display functions.
7. Multiple types of multi-screen display are supported, with up to 13 display modes and one-button control.
8. Three-work mode is supported. Real-time monitoring and playback can be displayed on one monitor without affecting real-time recording.
9. Single-screen playback is supported.
10. Image freeze function is supported.
11. Electronic zoom is supported, and the entire image can be inspected.
12. In multi-screen mode, the brightness of any camera can be adjusted through the host.
13. In playback mode, image brightness and contrast can be adjusted through the host.
14. Field compression processing is used, with a processing speed of up to 50 fields per second.
15. PVP processing mode is supported, and the number of recorded frames for each camera can be set freely.
16. Multiple playback display modes are supported, with up to 11 multi-screen playback modes and one-button control.
17. The system is equipped with a backup battery to support uninterrupted continuous operation.

The system consists of front-end equipment, transmission equipment, and terminal control equipment.

It can be used for fully enclosed perimeter monitoring, entrance monitoring, underground garage and parking lot monitoring, and perimeter surveillance.

1. The front-end PTZ and lens can be remotely controlled, enabling horizontal movement, tilt movement, and zoomed close-up viewing.
2. A single cable transmits both video and control signals, saving cabling, simplifying construction, and making future equipment upgrades easier.
3. The intelligent decoding box has a built-in amplification circuit, making it suitable for long-distance transmission.
4. The main control room can manually start, time-start, or alarm-start the front-end lighting equipment.
5. When a perimeter alarm occurs, the video surveillance system can be automatically activated and displayed in single-screen or four-screen mode. In four-screen mode, the alarm image can be frozen while related images remain active, or all four channels can remain active.
6. After an alarm occurs, the system automatically starts the video recorder for real-time monitoring.
7. The system has video motion intrusion detection alarm functionality. Area and sensitivity settings can be configured graphically, simply and intuitively, and can be manually controlled or activated on a schedule.
8. The system supports hidden-screen and covert recording functions.
9. The system has password keyboard lock functionality.
10. The system has a self-test function. It can provide alarms for damage, tampering, line cutting, and retained images.
11. The system can display the current light input status of the camera in the form of a histogram, which is convenient for equipment debugging.
12. Multi-level sub-control can be configured, and priority levels can be changed at any time.
13. Cascaded networking is supported, making expansion convenient.
14. The system has a multimedia interface and can support multimedia monitoring.
15. Each camera button can function as an emergency manual switch.
16. The correspondence between alarm inputs and cameras can be configured through the menu. One alarm input can correspond to one camera, one input can correspond to multiple cameras, or multiple inputs can correspond to one camera.

4. System Functions

4.1 Display Section

1. All video signals collected by cameras can be displayed simultaneously on one monitor in multi-screen mode. Up to 13 display modes are available. One-button operation makes switching flexible and convenient, and the screen position can be changed freely without changing the video input status.
2. During video recorder playback, images can also be displayed on one monitor in multi-screen mode. Up to 11 display modes are available, and one-button switching can also freely change the position of playback images.
3. Real-time monitoring and playback can be displayed simultaneously on one monitor in multi-screen mode without affecting normal recording. Up to 11 display modes are available, with one-button switching.
4. Time, date, and camera title overlay functions are supported.
5. Still image freeze and electronic zoom functions are supported.

4.2 Recording Section

1. High-compression field-switching processing is used for recording. The recording speed should reach 50 fields per second, providing strong recording continuity.
2. Intelligent PVP processing mode allows the recording amount for each camera to be set separately as needed. This meets the requirement for focused recording of key areas.
3. In alarm situations, recording settings can be changed to enable real-time recording of alarm images and related images.
4. A long-time-lapse video recorder can support 24-hour continuous recording on one tape.

4.3 Control Section

1. Manual and automatic single-screen switching and rolling display are supported, and the switching time can be set.
2. Any monitor can be programmed freely through PGM to perform group switching and rolling display. The switching sequence and switching time can be set freely.
3. The front-end PTZ can be remotely controlled to realize manual or automatic patrol functions. Lens control can provide medium-focus close-up viewing of distant objects.
4. The transmission line from the main control room to the front-end intelligent decoder uses frequency band shifting technology, allowing video signals and control signals to be transmitted in reverse over one video cable. This provides convenience for future equipment upgrades. The built-in amplification circuit of the intelligent decoding box ensures long-distance transmission and control.
5. The main control room can manually turn the front-end lighting on and off, or turn it on and off by schedule or after an alarm.
6. Two 21-inch color monitors in the main control console provide multi-screen full-area community monitoring and recording.
7. Ten 14-inch color monitors in the main control room provide rolling real-time monitoring in two modes: two-to-one and three-to-one.

4.4 Alarm Response Capability

1. The system has a self-test function and supports anti-tampering, anti-damage, and line-cut protection. Once any of these events occurs, the system provides the last image and displays an alarm.
2. Alarm linkage function: This system can be integrated with the perimeter intrusion alarm system into a comprehensive security protection system with various alarm linkage control functions. If illegal entry occurs in any armed area of the community, the video surveillance system will automatically switch the image to the alarm area or related area while the on-site alarm is triggered. The alarm process will also be automatically recorded by the dedicated alarm video recorder.
3. The system can set different areas and sensitivities for video motion intrusion detection on any camera. The intrusion detector can be manually controlled or activated and deactivated by schedule.
4. The keyboard password lock function can prevent unauthorized operation by non-operators.

4.5 Sub-Control Section

The system can be equipped with multiple sub-control units. They do not interfere with each other, and priorities can be changed freely. When multiple users control the same front-end device, the user with the higher priority takes control first.

4.6 System Expandability

The system is highly flexible and convenient to expand. Expansion can be achieved simply by adding equipment on the original system and connecting communication ports, allowing it to become an integrated system. This provides technical assurance for future system expansion.