Magnolia bus school 4G mobile monitoring positioning system solutions



School bus as a child every day to school to take the transport, its security issues can not be ignored. The issue of school bus safety has always been a hot topic of concern to the public. GPS-enabled 4G car video recorders can effectively assist drivers in driving safely, provide accurate positioning of vehicles, provide early warning of abnormal events and ensure personal safety of vehicle occupants.

Shenzhen Magnolia Technology Co., Ltd. R & D school bus vehicle monitoring system not only track the vehicle's geographical location, but also on the school bus operating conditions and the driver's work for the entire process of monitoring and recording to prevent illegal operation of the driver, but also in the driver or student Disputes with students as evidence of the division of responsibility, safeguard the legitimate rights and interests of schools and students. And with the help of GPRS / CDMA / EDGE / 3G (EVDO, WCDMA) wireless monitoring system, managers can understand the geographical location and operating status of school buses through the network in real time and provide students with safer and better services.

The main application objects: a variety of public private kindergartens, primary and secondary schools, international schools, aristocratic schools.

Status quo

At present, school bus safety has drawn great attention from all walks of life. Last August, the Ministry of Education conducted a pilot school bus operation management operation in some places such as Dawu County and Beijing Municipality of Hubei Province to explore the operation mode of safe school buses. Some provinces and cities across the country have also issued specific provisions specifically for school bus safety management, and these measures will promote the safe school bus project to a certain extent.

School bus safety involves the healthy growth of children, involving the well-being and happiness of millions of households. As a well-known brand of security company, our company has the obligation and responsibility to assist local government, and constantly improve the school bus safety management. Create a Chinese version of the school bus safety project.

First, solutions and platform features

(A), solution
The system consists of command center management server, forwarding, storage server, management PC, splicing screen display, car terminal, data interface and communication network and other components.

Embedded platform is currently the most advanced real-time video management system, integrated center management server CMU, data forwarding server MDU, video server MSU, client software CU, IP video server and other equipment.
Car Terminal: Each school bus to install a 3G / 4G car recorders, video signals via 3G / 4G wireless communication link remote transmission to the dispatch monitoring center.
Embedded System Platform:
N Composition: CMU server, data transfer server MDU, video server MSU, client software CU, 3G / 4G car DVR with GPS positioning.

N Function module: The platform adopts the hierarchical and distributed architecture, the biggest advantage is that it is convenient for the large-scale vehicles to be distributed and centralized distributed hierarchical management, hierarchical control and centralized storage, streaming media data forwarding and information management. All operations can be remote network control. Distributed platform architecture can be a management server, and constantly expand the forwarding server, storage server, is ideal for large-scale centralized monitoring project, fully equipped with the capacity to carry more than 100,000 data lines.

(B), the platform features

1, remote real-time monitoring and scheduling
(1) Through the Internet on the big screen to remotely view the current specific location of the school bus, the surrounding conditions, internal and external site conditions, in the face of emergency remote command site operating vehicles.
(2), remote control of live camera equipment through the network
(3), capture the video inside and outside the scene video evidence of evidence
(4) authorized users such as supervisory agencies, public security departments, supervisors at banks and the like can watch the scene inside and outside the car at any time
(5), authorized to support the remote call of a certain period of time audio and video video files.
2, video and playback
(1), 4-channel picture at the same time 720P quality video
(2), saving period of 30 days (can be set)
(3), remote playback within 30 days at any time video (can be set)
(4) Remotely download videos for any time period within 30 days for evidence (can be set)
3, alarm
(1) When an emergency occurs, the driver alarms the dispatch center in time through the alarm button, and uploads the alarm information to the command center when the important material moves.
(2) Alarm linkage capture video to the command center and the public security department for inquiry.
4, GPS positioning (configuration GIS software)
(1) GPS linked GIS map at any time display the vehicle driving directions, where the exact location (speed, latitude and longitude)
(2) When the alarm linkage, send the vehicle geography accurate coordinates
5, two-way call function
(1), leadership, scheduling, supervision can call the driver at any time, direct the vehicle
(2), if necessary, at any time through the microphone to the dispatch center propaganda
6, background authority management
(1), set up internal management department, add managers, assign the appropriate management authority
(2), add front-end camera equipment, authorized equipment control
(3), add, modify, manage the car site, set the car site to watch the range

Second, the overall design of the program

2.1 system architecture
School buses carry the flowers and the future of the motherland, to a certain extent, represent the image of a city. School bus as a child every day to school to take the transport, its security issues can not be ignored. School bus safety has always been a hot issue of concern to society. However, many school bus operators now have such potential safety hazards to varying degrees. Some bus drivers are not well aware of their responsibility and some are seriously overloaded with school buses. Students are experiencing school bus trips Human-caused injury problems often result in liability disputes between schools and parents.
2.2 system architecture
The system mainly through China Unicom's WCDMA and GPS satellite positioning with our equipment for the entire school bus positioning and real-time satellite monitoring. As shown below:

2.3 system components
From the physical structure of the system point of view, the system can be divided into three parts: front-end acquisition section, the middle part of the network transmission, control center and the total control of the TV wall. Including:
Front-end acquisition part: According to the requirements of front-end acquisition with 4 car camera, using 4-way 3G car DVR. Video surveillance front-end equipment is as follows:
Ø 4-way 3G / 4G car DVR built-in GPS module;
Ø 4 car camera;
Transmission part: the transmission part is the system video image signal, sound signal, control signal, positioning signal. Using Unicom 3G-WCDMA transmission.
Master Control Section of Monitoring Center: In this project, the master control section of monitoring center is the backstage part of the monitoring system. The system uses multi-domain hierarchical distributed structure control. In the center to achieve video surveillance, satellite positioning, video recording, video inquiries, alarm input and output, alarm linkage, on the big screen display and other functions. The system, monitoring center using a large management platform for the entire monitoring equipment for unified management. Specifically includes the following sections:
Ø linux embedded platform system server [integrated center management server CMU, data forwarding server MDU, video server MSU, management PC, decoding server]
Ø Management host. Mainly through the windows system installation management software and embedded images and monitoring platform for management.
Ø decoder on the TV wall, is the use of network video decoder on the TV wall (solution 9 Road) or can decode the host platform decoding (solvable 9 Road, 16 or 36 Road, a large screen). Two decoding options

Third, the program features

The program takes full account of user needs and integrates the technical advantages of the current 3G network, IP network, video and voice fields and draws on the advanced concepts of separation of control and exchange in NGN. The solution has the following features:
3.1 advanced architecture
Embedded monitoring platform, integrated center management server CMU, data forwarding server MDU, video server MSU, client software CU, IP network storage devices, IP network equipment. Because ZM-QVB724108 is based on IP, all the components in the system can be distributed and centrally managed according to requirements. The architecture is open and standard technology is used. The system will be signaling control and media streaming separation of advanced concepts into the video surveillance system. System audio and video stream is not CMU centralized processing, but through the network processing exchange distributed in the form of distribution, to avoid the media stream processing performance bottlenecks caused by the pressure, which can achieve unlimited monitoring scale Expand.
Truly complete hierarchical distributed design architecture, the core module is based on a secure and stable Linux operating system and high-performance MySQL database.
3.2 strict modular design
CMSV6 embedded system uses a modular design, system configuration flexibility. Overall, the main system integration consists of the following five modules:
l Central Management Unit (CMU): The management platform of the entire platform system manages all access devices and users in the system. Responsible for the system of all signaling and distribution management flow.
l Streaming Media Forwarding Server (MDU): Unifies the flow of access to the front-end device and distributes the front-end flow according to the user's request.
l Central Recording Server (MSU): The system can adopt three recording modes: front-end equipment recording, center server recording and client-side local recording. Center video server is responsible for the center of the video. According to the requirements of users can carry out regular recording, manual recording and alarm recording and other video recording.

l platform monitoring client (CU): to provide users with video surveillance business interface software. Software easy and flexible operation. Video monitoring, alarm management, device parameter management and cloud mirror control can be achieved.
l System Configuration Tool (CT): Large monitoring platform software must conduct a large number of configuration operations before conducting specific monitoring services. Including: access device configuration, user and permission configuration business logic configuration. The configuration tools are generally used by the system administrator and are not provided to the users of general monitoring services.
Strict modular design to ensure that the system clear division of labor, stable operation, easy installation, easy maintenance.
3.3 multi-level network topology
According to the size of the specific monitoring size, flexible and practical network design. Small to dozens of points, as many as thousands of monitoring points. From small applications to the formation of large networks can meet. For small monitoring systems, you can form a single-domain network to monitor the functional requirements. For large-scale hierarchical monitoring project, can be achieved through multi-domain cascading way. Theoretically infinite cascade may be carried out to achieve the goal of unlimited expansion.
3.4 high-definition image quality
CMSV6 series of embedded platform system access front-end equipment using the latest professional image technology, providing FULL D1 high-definition image resolution, support MPEG2 / MPEG4 / H.264 encoding format, coding bandwidth up to 8M, especially in the high Dynamic image monitoring occasions, VS6100 to provide users with the highest quality high-definition images. At the same time through network optimization and other network technology, making VS6100 have good real-time, to meet the requirements of professional monitoring. In particular, the embedded platform adopts a coding and network-wide exchange mode, which avoids the phenomenon of image quality degradation and delay increase caused by the traditional multi-level concatenation of the monitoring system and can still be maintained optimally after multi-level expansion High-definition image quality and low latency.

3.5 professional and reliable data storage
Embedded Platform The integrated IP SAN function enables centralized management, cross-domain sharing, smooth expansion, interoperability, etc. in addition to distributed deployment. In addition, there are many unique advantages in terms of reliability, such as support for RAID and online support for hard disks Hot-swappable, hard disk power short-circuit protection, optional redundant hot-swappable power supply, support for automatic power failover. Thus ensuring the reliable storage of massive video information. At the same time, because end-to-end IP SAN storage is based on the data block storage mode, the traditional monitoring mode overcomes the defects that the file storage is easy to damage the file and the inaccessible recent image, improves the system reliability and shortens the system image playback response time greatly, Gain time for emergency disposal.
3.6 flexible and convenient management mode
Embedded platform for different users can use domain management, user management and PTZ control conflict management and other rights management mode. Different users can operate the system according to the specified permission. This hierarchical and multi-level management mode is very suitable for government, public security, airports and other industries management.
System according to the characteristics of the user business management model, the use of centralized management. The central management unit CMU and the media forwarding unit MDU not only provide centralized management and control of the front-end devices, but also remotely manage the storage terminal devices distributed in each area. Users only need a client on the entire network device batch configuration issued, remote upgrade, remote operation, business operations and other operations.
3.7 supports a variety of application interconnect
Embedded platforms include network video surveillance, voice monitoring and two-way intercom, video wall, electronic map, fire alarm, electronic fence, room environment monitoring, engine room equipment monitoring, remote data acquisition, access control and intelligent equipment monitoring functions. In addition the system provides a complete SDK for easy docking with other systems, such as: GIS system, 110 command system.