With the continuous development of society, people’s living standards have been continuously improved, and people’s emphasis on family safety and property is also increasing. More and more families choose to install security monitoring equipment at home, such as: infrared detectors, humidity alarms, access control, smoke detection, monitoring and other alarm devices. However, these systems are often independent of each other and upload alarm information through the telephone line. Frequent occurrences of false positives, missed reports, etc. In many cases, even if an intrusion alarm occurred, it was because the linkage with the police was not timely, resulting in the criminal suspect fleeing and then fleeing. The consequences of handling the case were difficult.
1. Brief description of the original alarm system
The original system consists of indoor infrared detectors, temperature and humidity detectors, access control, smoke sensor, and alarm host. The monitoring center consists of an alarm server.
The original system provides different alarm services according to the type of front-end alarm device, including infrared detection, access control, smoke detection, etc. These data are uploaded to the alarm server via the telephone line through the alarm host.
2. System disadvantages
Because there is no effective control mechanism, false alarms cannot be handled, and false alarms often occur.
The whole alarm wit uploads through the telephone line, the time charges will produce the high telephone expenses. Causes the user to complain.
Without video management, users cannot view home conditions live video.
When the alarm is generated, the user cannot get the alarm prompt at the first time. (The mobile terminal is not supported.)
The security company does not have server-level effective management intelligence. It cannot locate the location of the alarm in time, and cannot query user information in time.
Without an effective storage mechanism, alarm records cannot be queried.
3. New Network Video Alarm Monitoring System Design Requirements
For the existing drawbacks of the existing alarm system, the new system design will use the latest alarm control mechanism to provide users with real-time and reliable alarm services. The front end of the new system is mainly composed of alarm equipment and video monitoring equipment. The system center will be mainly Platform server and monitoring client.
The system provides the following functions
The system provides alarm device access platform services. The original alarm system seamlessly interfaces with the new system platform and can be accessed without modification.
The system provides real-time video viewing services.
The system needs to have alarm linkage function, such as motion detection alarm, abnormal device drop alarm, linkage capture, linkage video and so on.
The system supports mobile handset services. Users can browse videos through mobile phones, receive SMS alarm messages, and remotely deploy, withdraw and prevent mobile phones.
By monitoring the client, when an alarm event occurs, the alarm location can be accurately and accurately provided to the staff.
The system has a large amount of storage capacity, can effectively store 3-5 years of alarm data, convenient and accessible.
Utilize carrier-class service platform to effectively save communication costs of the alarm system.
The PC and mobile client are bound to the user's mobile phone and have a verification code function.
Project System Diagram
The entire program is based on the Internet. Users can install network video monitoring equipment at the entrance of the user's home or on the wall. The network video monitoring device can collect user videos and send the videos to servers located at the center through the network. Users can remotely log on to the central server by using a computer or mobile phone to check their own home security situation.
Front-end equipment can be connected to various brands of alarm host, the signal collected by the alarm host, back to the central platform server through the network. The central platform server can notify the security company and the user via SMS via a pre-configured linkage strategy, prompting the user whether to select an alert. At the same time, the front-end device can capture live images and send the pictures to the users in the form of MMS. Users can determine whether there is a need for an alert based on the returned images. Users can also use the mobile client to log on to the central platform to view live images. Determine whether it is a valid alarm After the householder confirms the situation with his/her mobile phone, he or she can directly reply to the security company to inform him whether he needs to touch the police. In this way, we will effectively use the alarm system to achieve the purpose of security prevention more quickly and accurately.
Security System Function Description
1. Front-end user home centralized management function: Due to the large number of front-end users, the platform database system will record basic information of each user for management convenience. When the alarm is generated, the status of the home can be queried in real time, and the owner's multiple contact methods can be authorized. Video browsing.
2. 3G network line real-time monitoring function: 3G network can be used as a transmission medium in the router to achieve the purpose of alarm online and image transmission.
3. SMS, MMS sending, receiving, forwarding functions: alarm probe linkage camera capture pictures, send SMS, MMS enter the central server processing platform through the 3G network, the platform forwards to the user's mobile phone, PC terminal. User reply confirmation SMS forwarded by the platform to the security The company to confirm whether the police. The entire text message, MMS through the center platform to forward the operator user mobile phone.
4.110 Alarm linkage function: The platform accepts the user to confirm the alarm message, forwards the security company to confirm the message and picture, and the security service company can choose whether to link 110 according to the actual dangerous situation and achieve automatic alarm.
5. Compatibility with the original alarm platform: The platform can directly interface with the existing alarm system of the security company. All the functions of the system can be realized without modification of the circuit design.
6. Data center management functions: Central service storage management front-end camera video streams, recording alarm audio streams, storing short message alerts, capturing picture information, logging log data of individual user alarms, and central database recording front-end multiple user data (users Family information, contact information, etc.)
7. Video service forwarding storage function: Users can use mobile phone or PC machine to remotely monitor video in real-time and pay attention to home conditions in real time.
8. Log storage, query function: The platform has the ability to record alarm log management. There will be a log record for each piece of alarm information, and at the same time, a detailed record will be made for each alarm's SMS reply and the alarm status for detailed inquiry.
9. Multi-layer electronic map linkage management: The platform has the functions of video alarm and map linkage. When the alarm is generated, the security company can accurately locate the home location where the alarm occurs according to the multi-layer electronic map function provided by the platform software. At the same time, the basic information of the family is queried. .
Center platform advantages:
(1)Comprehensively compatible with three major operator SMS platforms
(2) Platform high-bandwidth access ensures smooth network
(3) Effectively reduce false alarms by SMS confirmation mechanism
(4) Central server has powerful management capabilities and management is more convenient
(5) Record alarm processing flow in real time to reduce user complaints
(6) Platform storage supports hot backup, data is more secure and reliable