Summary:

Public security system is a high-tech product of modern science and technology development.It organically combines human management, security prevention and information processing, making modern management means have greatly improved.The weak current system installed in the modern architectural complex should fully reflect its modernization, scientific and comprehensive, and the equipment selected should try to consider the advanced nature, reliability, practicality, beautiful appearance, reasonable layout, and truly reflect the security automation, modern management and simple operation.

Road administration enforcement car out on duty, often encounter accidents, in order to record the whole process of the event, we in line with complete, functional, economic and reasonable principle to make the overall design scheme of the system, below we will respectively on the design idea, system configuration and so on to make a detailed elaboration.

System Design Principles:

4G video surveillance system is the most direct means of recording accidents. A cradle head camera is installed on the roof of the law enforcement car, and the night surveillance is considered, and the video is kept for more than 40 days.Highway personnel can also be equipped with 4G individual law enforcement, in the handling of accidents to provide a factual basis.

Design Basis:

Construction quality will directly affect the stability of the system, we will strictly follow the electrical design specifications issued by the state and the industry standards issued by the Ministry of Public Security during construction.

Market demand:

Combined with the actual situation of road law enforcement, we believe that the law enforcement vehicle security system needs to install 4G vehicular cradle head monitoring system.4G on-board PTT monitoring system mainly includes front-end image acquisition, intermediate transmission control, back-end image processing and other parts.The front-end equipment includes camera, lens, cradle head and 4G on-board monitoring host that transmits control signals.The back-end video server, forwarding server, data storage server and image processing service include the display part of the Mosaic monitor.Considering the actual situation of highway patrol cars and investment scale, our efforts in design optimization system equipment, improve the cost performance of the entire system configuration, on the premise of guarantee system is advanced at the same time, realize the stability of the system reliability, increased system operability, maximize monitoring scope and quality, reduce the blind area, therefore,When we carry out the system design, according to the relevant national norms and standards, a comprehensive study of the basic requirements of the construction party, from the actual needs of party A's safety prevention, established the following principles:

We in the program design and construction, and strive to make the system and the road law enforcement car decoration style to maintain harmony and unity, do beautiful without affecting the use of the effect.Choose equipment with high performance and price, and configure system equipment according to the characteristics of the project, which should not only comply with the advanced principle and the requirements of the security system specification, but also try to save the project cost.

As for the selection of equipment in the system, we strive to optimize and select, to maximize the performance price ratio and stability and reliability of the system, to increase the operability of the system, to maximize the scope and quality of monitoring, and to reduce blind spots.The main equipment adopts the products of the original manufacturer, the whole system strives to achieve reasonable layout, advanced technology, economic and practical, easy operation and maintenance, and ensure that the system still maintains its advanced nature and stability after several years.

Design ideas:

Because this system belongs to a patrol car security monitoring system, so our preliminary design idea is to use this system can make the road administration law enforcement officers in the car can be seen outside, improve security automation degree of reliability in the night, timely find and record some emergencies, for later events provide complete video information processing.According to this design idea, the system can be roughly divided into: front-end camera, image transmission, control, display and record, 4G individual soldier law enforcement instrument.

The main function of the front camera is to capture images within the monitoring range;

The main function of transmission is to transmit various signals (video, control, etc.);The main function of control is responsible for the control of all equipment and image signal management;

The main function of display is to display the image and abnormal signal;

The main function of the record is to record the content of the obtained, so that evidence;

The main function of 4G soldier law enforcement instrument is to record the law enforcement situation of road law enforcement personnel under the vehicle;

系统组成

This section describes main functions of the system:

The law enforcement car installed with the monitoring system after the following functions:

1) The system can automatically camera through the PTZ camera and carry out non-stop surveillance.In normal times, the system works in the mode of cyclic scanning and comprehensive monitoring of each camera, and the monitoring personnel can zoom in and watch the images of any camera.You can set different parameters according to the time period, day of the week, and day to day of the month. That is, the system can divide different working modes by time.

2) By adjusting the camera, you can clearly see the situation in the scene and distinguish the objects in and out.

3) The input image is digitally compressed and stored in the computer hard disk, and the compression ratio can be adjusted by software.Stored image files are automatically deleted cycle, the image file retention time in the hard disk depends on: hard disk space size, image resolution, image compression ratio, scanning switching time, the system can work day after day year after year endless.According to user needs, you can also increase the hard disk to extend the storage cycle, or add other external storage devices.

4) The system can be convenient at any time, real-time retrieval, playback record stored images, such as time, place (lens) or image file retrieval and playback, playback image is stable, clear, can read and write repeatedly, there is no traditional monitoring system in the presence of video tape signal attenuation and wear problems.

5) The system uses the powerful image processing function of the computer to process the collected images, including screen modification, editing and adjustment, zooming in, reducing, printing and so on;The image can also be saved as a general data file format and processed with other professional image processing software.

6) The all-digital intelligent monitoring system has a security password. Personnel without permission cannot query, set the system, delete files and other operations on the monitoring system.Once the system encounters an unexpected power failure, it can be automatically restored to work.

7) Alarm interface is reserved in the system. In the future, active detectors or passive emergency buttons can be connected to add alarm video function for emergencies.

8) The system has unique moving target detection technology, which can be used to fortify directly on the screen.

9) The system can be networked with other computers.

10) After startup, the system can enter the monitoring state directly.

11) The system overcomes the shortcomings of the traditional system, has a good man-machine interface, make the operation more simple and easy to learn, more intuitive daily maintenance is easier.The system setup is simple and intuitive, and the recording condition of each camera can be set according to the specific requirements of time, date and alarm input.As a result of the use of computer control, as long as the design in advance, you can achieve full automation management, programmed operation, fundamentally realize unattended.

12) If the front-end equipment has a cradle head, lens, etc., can be directly on the computer screen.

13) The process of events can be scrutinized through the computer monitor, and all the stored images can be reproduced immediately, and the images can be processed for recognition through the image processing function of the system.It can also be printed on a regular printer or transmitted to any part of the world via a modem.

14) Can be upgraded or modified on the basis of the original monitoring system, and keep part of the original equipment to avoid waste.