Waterborne Polyurethane Product Shanghai Na Long Tech Co., Ltd , https://www.na-long.com
Intelligent Children Park Fusion Solution
I. Overview
business background
The safety factor of the fusion system for children ’s parks is very high. It must ensure high performance and high stability of the system. According to the requirements of the project users, the fusion system should be installed in public places and important areas such as outdoor gates and park gates. When a group event, unexpected event or other emergency occurs, on-site personnel can initiate a call to the monitoring center through the emergency help intercom broadcast terminal. After the center receives the alarm, the real-time video image and perimeter image of the caller's location will automatically pop up on the large screen. The park management personnel can keep abreast of the surrounding situation, and the central management host can communicate with the front-end personnel in a timely manner to understand the situation on the spot. At this time, the management personnel of the park monitoring center can first deter the perpetrators through the remote talk function of the intercom broadcast, and send them to the incident site to deal with the situation to ensure the safety of the children in the park. In addition, the broadcast system distributed throughout the park can also play background music, announcements, and tracing information, etc., and can also be used as a fire broadcast in an emergency.
2. Scheme design
system introduction
The AIO fusion system uses mature IP voice technology, high-definition video technology, video intelligent analysis technology, remote IO control technology, etc., and transmits audio and video signals in the form of data packets in the LAN through the IP network. The NIS series of high-definition visual broadcast intercom systems It not only solves long-distance transmission and distributed networking through network technology, but it is also a set of highly-integrated public broadcasting system and video intercom system. The system can be well connected with the user's existing video surveillance system. , Access control, alarm, LED display system for seamless integration. And realize the centralized operation of all equipment and equipment resource sharing. It greatly facilitates the user's demand for centralized control of various system equipment operations in system integration projects.
3. Technical characteristics
1. Scalability, compatibility and integration capabilities
1) Support standard protocols such as onvif protocol, SIP protocol, GB28181 protocol, provide standard interfaces to facilitate data sharing between platform subsystems
2) It can be connected to the VO system independently (support mainstream IP-PBX), and can realize audio and video calls with IP video phones. Access control system, video monitoring system, alarm system, etc. can be integrated in the project;
3) Break through the shortcomings of the separation and closure of traditional broadcast and intercom systems, and realize cross-system linkage, including video and broadcast linkage, remote control access control, remote control light switch, etc.
2. Information source collection capability and linkage capability
Information collection, including voice information, video information, alarm information, intercom information; the system intelligently analyzes the collected information, according to preset thresholds, it can link emergency broadcasts, notify security forces, start alarm prompts, link audio, video, Acousto-optic switch; enable managers to fully understand the situation, respond to disposal forces in a timely manner, and call for help from helpers.
3. High voice sampling rate
Voice: support PCM, AAC, G711 audio encoding formats; voice files support MP3, WAV and other file formats; support 8K-48K sampling rate, 32K-768K code rate file playback makes the broadcast sound quality clearer; all terminal devices use hardware echo Elimination of audio processing technology can well cancel echo and suppress noise. The breakthrough in voice, the support system is applied to full dual video voice calls, multi-party video conference; the system has encrypted the voice encoding.
4. Support starlight level function and HD video resolution
Video: The video supports H.264, H.265 encoding formats, supports CIF, D1, 720P, 1080P multiple resolutions; supports star-level night vision and wide dynamic, strong light suppression, weak light compensation, at night and backlighting It can also clearly identify other people's faces under the circumstances; supports real-time screen time and title overlay settings, and can superimpose information such as video resolution, code rate, time, and title content on the screen.
5. Multi-alarm source collection and linkage capability
Alarm: receive terminal alarm, support motion detection alarm, IO trigger alarm, and support intelligent analysis threshold alarm (such as noise threshold), starlight camera night recognition monitoring alarm; with alarm display, recording, recording and other functions; can set alarm Send to 110 command center; the system is all based on network operation.
6 full two-way video intercom
Video intercom: The system provides one-key call function; after the call is connected, it can realize full two-way video call in hands-free mode, and with the function of echo cancellation. Specific practical functions
1) Interrupt function: other users can interject low-level users in the call
2) Multi-party conference mode: support multi-party video conference, between application host and host
3) Hosting mode: When the staff of the regional host leaves or disconnects from the network, the system will automatically host its management to other hosts for management, effectively preventing host abnormalities and unattended alarms.
4) Call transfer function: can be set to busy transfer, disconnected transfer, non-responsive transfer, transfer by time period, etc.
5) Status monitoring: the real-time status and working status of the terminal can be visually displayed on the screen of the intercom management host, which is convenient for debugging, inspection and maintenance; each button can add the description of the location of the network point, which is convenient for management and operation.
7. Multiple broadcast applications
Network broadcast: Support three broadcast transmission protocols of UDP, TCP and multicast, and can set different broadcast transmission methods for different scenarios. Strengthen security education and publicize security prevention knowledge through broadcasting, warn the predicted unsafe factors, play a preventive role, effectively reduce the probability of danger; support multiple broadcast applications, including
1) Broadcasting in the whole area: it can broadcast audio files, shouting and external audio sources in the whole jurisdiction.
2) Partition broadcasting: it can broadcast audio files and shouts in the partition
3) Scheduled broadcast: set the broadcast time according to the system, and it will automatically play when the time comes
4) Firefighting broadcast: When a firefighting alarm occurs, a specially recorded firefighting audio file is played, and the broadcast is automatically cut to a large volume.
8. Cross-system integration and system integration capabilities
Convergence capability: cross-system integration with video surveillance system, access control system, Xueliang engineering platform, safe city platform, smart community platform, and smart city platform.
System integration: integrate alarm, broadcast, intercom and video systems to realize voice linkage video, video linkage sound, alarm linkage video, alarm control sound and light switch, and video linkage broadcast function.
9. Storage function
1) Local storage and network storage mode: Support local storage and network storage of the terminal. Local and network storage strategies (storage mode, storage time, storage conditions, etc.) can be configured in the system platform according to actual needs. All terminals support local storage of audio and video files SD card and network center storage, and support the NVR storage function of mainstream manufacturers. The intercom terminal can directly store audio and video data in NVRs of mainstream manufacturers such as Haikang, Dahua, Keda, and Yushi.
2) Storage strategy: Full-time or regular storage can be realized
3) Storage practical details design: Audio and video are stored at the same time; support alarm picture capture function, can capture and store 1-60 seconds of the picture in the alarm period. The system stores the recordings and videos of all terminals in the management server, and combines the audio and video of the intercom terminal with the audio files of the intercom in the management center into one MP4 file for storage. The user can use the calling workstation or PC client to retrieve at any time.
10. Management ability
The system adopts "multi-level sub-control management, unified command" management mode, which is convenient for multi-level units to perform their duties. The system has a terminal-sub-control center-command center three-level management mode. Among them, the command center sets up a first-level server, and each branch control center sets up a second-level server. Both the first-level server and the second-level server have the function of managing the intercom terminal under their jurisdiction, ensuring that any single point of failure will not affect the operation of the entire system, including failures. Intercom terminal managed by the server. All device terminal cloud platform registration is convenient and fast.
11. Ease of use
One end controls the whole world, users can control all front ends of the system on one client, and the practical value and user experience are greatly improved; the command center and sub-control center can make point-to-point, partition or all calls and broadcasts to each device; mobile APP users only need Log in to the platform for remote video intercom, remote broadcast, remote music playback and other controls.