The wireless base station or substation network digital monitoring system mainly performs video surveillance on outdoor wireless base stations or substations. It consists of two parts: the substation monitoring front end and the headquarters monitoring center.
The substation monitoring front end includes a network camera (or video network server), a pan/tilt (optional), a fire alarm or an anti-theft alarm signal generator (optional), and the like. The monitoring front end is responsible for converting audio, video, alarm and other signals into network data packets, and transmitting them to the headquarters monitoring center for centralized processing via a dedicated network or the Internet. The monitoring front-end can also provide users with simple WEB access, allowing users to browse and monitor the front-end digital video and audio signals in real time through a private network or the Internet. The monitoring personnel can also remotely control the pan/tilt and lens of the monitoring front end through the network to obtain flexible and effective monitoring effects.
The headquarters monitoring center includes a management server, a data storage server, a monitoring terminal, and an administrator operating the host.
The management server is installed with a database management system, which manages the functions of management, login, browsing, control, deletion, copying, and backup of the staff, as well as the login, recording, browsing, and control authority levels of each network camera. The management server is also responsible for the processing and preservation of the alarm signal, and selects the predetermined alarm mode to respond to the substation alarm accurately and timely. The management server is the management core of the entire system operation, controls the flow of the entire system data, and provides settings and verification of access, backup, deletion, and retrieval of various data.
The data storage server is used to store real-time image data returned from each sub-station, and provides real-time recording, timing recording and video retrieval and playback functions. The storage server can perform automatic erasing loop recording according to the settings, achieving unattended purposes.
The administrator operation host is mainly used by the system administrator for system management, and can perform system configuration, data maintenance, and permission setting.
The monitoring terminal is a PC-based terminal device, mainly for the monitoring personnel to decompress and display the real-time image sent back by the front-end of the sub-station, or to play back the digital video file of the storage server; at the same time, it can also be used as a system management terminal, log in to the management server, and complete each monitoring system. The management function is a main device for the human-machine dialogue between the monitoring personnel and the monitoring system.
2. Signal processingThe wireless base station or substation network digital monitoring system mainly uses a private network or the Internet as a data communication line, and the substation monitoring front end uniformly converts audio, video, and alarm into network data packets, and transmits them to the headquarters monitoring center through a private network or the Internet, and the central server Centralized processing.
Audio and video signal
The audio and video signals are converted and converted by the substation monitoring front end into data packets that can be transmitted by the network, and transmitted to the monitoring center via a private network or an Internet connection, for the headquarters monitoring personnel to browse in real time in the monitoring center, or stored by the storage server. The video data in the storage server is automatically erased as required, and the video is also recorded. The audio and video data stored in the storage server can be quickly retrieved and played back by the staff at a fixed time.
Alarm
The different alarm signals such as fire and anti-theft of the monitoring front-end of the sub-station are transmitted by the alarm module to the alarm signal access port of the network camera through the 485 bus, and finally converted into data packets that can be transmitted by the network, and transmitted back to the monitoring via the private network or the Internet. The server of the center, the server analyzes different signals, and finally generates different alarm signals such as sound, light or screen according to the settings, and can also generate telephone, short message, and email remote alarm signals to complete the alarm task in all directions. The monitoring center can also automatically record the location, time and category of the alarm signal for the supervisor to check.
control signal
The headquarters monitoring personnel can transmit real-time control commands through the private network or the Internet, and remotely control the lens of the sub-station monitoring front end and the camera pan/tilt to facilitate the monitoring personnel to select different monitoring ranges for observation and improve the remote monitoring effect.
3. System functionUnattended
The system can perform automatic erasing and image recording on the image recording according to the software settings, without manual intervention. The alarm form can also take many forms, including local sound and light warnings, as well as remote alarms such as telephone, SMS, and email. The monitoring personnel can choose any feasible solution, and they can also receive the alarm signal at the headquarters monitoring center.
Optional recording
The administrator can record the surveillance image at a fixed time according to the need to save storage space. You can also save the digital image before or after the front-end alarm to prepare for the accident.
Automatic alarm
The alarm signal is sent to relevant personnel in the form of sound, light, telephone, SMS, email, etc.
authority management
The authority setting and verification of the relevant personnel who operate the system, the management authority of the system, the browsing of real-time images, the remote control of the camera, the deletion, copying and browsing of historical digital images can only be operated by users with certain rights. Administrators can also set up operations that do not require permission restrictions.
Centralized monitoring
The monitoring personnel can monitor the monitoring scene of the substation at the monitoring center of the headquarters to know the operation of the substation in time, which can greatly improve the working efficiency.
remote control
Remote control of the lens, orientation, etc. of the substation surveillance cameras can be performed at the headquarters monitoring center through a private network or the Internet, improving the flexibility and effectiveness of remote monitoring.
4. Scope of applicationSubstation, wireless base station, water source supervision, traffic supervision
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