CN1612176A - Wireless network video monitoring system and method - Google Patents

Abstract

The invention discloses a wireless network video monitoring system and method. The system includes a network server, a video server, a wireless network, a database, multiple monitor computers, and multiple cameras. The network server is used to judge whether the received user name and password are correct according to the user information stored in the database, and obtain a system main interface if the user name and password are correct. The video server is used to connect the corresponding camera according to the wireless connection request, receive the wireless video signal from the camera and convert it into a video signal, convert the video signal into video data in a specific format, and transmit the video data to the monitoring computer. The monitoring computer is equipped with a video player, through which video data can be played in the video window. Using the system and method of the present invention, the mobility of the network can be improved and the cost can be saved.

Description

Wireless network video monitoring system and method

【Technical field】

The present invention relates to a monitoring system and method, in particular to a wireless network video monitoring system and method.

【Background technique】

As an important security means, monitoring has a long history of development. With the development of network technology, the use of network technology for remote monitoring is becoming more and more popular. It improves the safety and reliability of the entire monitoring system and saves a lot of manpower and material resources. resource.

However, the traditional network video monitoring system cannot perform real-time monitoring, such as the No. 436745 patent announced by the Patent Office of the Republic of China on May 21, 2001. Its patent name is "intelligent digital monitoring system". Intelligent digital monitoring system of TCP/IP network. The intelligent digital monitoring system includes: a digital video and audio server, at least one terminal device and a remote node computer. In this patent, the video signal is captured by the camera unit of each terminal device, a video dependent conversion device converts the video signal into a digital information stream, a video encoding device converts the digital information stream into an image file in a predetermined format, and an index processing device uses the terminal The node name and time data of the device index the image file, and finally store the indexed image file in a data storage device, and the remote node computer user accesses each data storage device placed in the terminal through the network to obtain Related Information. The disadvantage of this technology is: it is equipped with a data storage device at each terminal for storing indexed information, which greatly increases the cost of installation, and can only access the image files stored in the database through the Internet, and the image files are only The image stored at a certain moment or a certain period of time in the past is a static image, so it cannot be monitored in real time. In addition, it needs to set up a network in the form of a cable and cannot provide network mobility.

In order to solve the above shortcomings, it is necessary to provide a wireless network video monitoring system and method, which can monitor the scene in real time, store video data files centrally, and provide mobility of wireless network. Thereby saving the erection cost.

【Content of invention】

The main purpose of the present invention is to provide a wireless network video monitoring system and method, which can monitor the scene in real time, store video data centrally, and provide network mobility.

The invention discloses a wireless network video monitoring system. The system includes: a network server, a video server, a database, a wireless network, an Internet, multiple cameras, and multiple monitor computers. A plurality of monitoring terminal computers are connected with a network server through the Internet; a plurality of cameras are connected with a video server through a wireless network; the network server is connected with a database through a connection. Multiple cameras are distributed in different areas of the production site to collect video signals from each site. Wherein, each camera includes a wireless network card, and the wireless network card is used for converting the video signal collected by the camera into a wireless video signal and sending it to the video server through the wireless network. The database is used to store user information, user access authority information, and video data files. The network server includes: a user authority control module, an interface acquisition module, a user data maintenance module, and a camera control module. Among them, the user authority control module is used to receive the user name and password input by the user, and judge whether the user name and password are correct according to the user information stored in the database. If the user name and password are wrong, the user is refused to log in; Then the interface acquiring module acquires a system main interface. Through the main interface of the system, the user can select the camera to be accessed. The user data maintenance module is used to add, delete and modify basic personal information of users and their access rights. The camera control module is used to send instructions to the remote camera according to user requirements to make it perform corresponding actions (such as: focus adjustment, horizontal rotation, angle adjustment). The video server includes: a connection module, a wireless network card, a video encoding module and a data transmission module. Among them, the connection module is used to generate a wireless connection request, and connect the corresponding camera according to the wireless connection request; the wireless network card is used to receive the wireless video signal from the camera, and convert the wireless video signal into a video signal; the video encoding module converts the video signal Convert the video data in a specific format; the data transmission module is used to transmit the video data to the monitoring terminal computer. The monitoring terminal computer provides an interactive user interface for the client, and the video data can be played in the video window through the video player.

The present invention also provides a wireless network video monitoring method, which includes the following steps: receiving the user name and password input by the user; judging whether the user name and password are correct according to the user information; if the user name and password are correct, obtaining a system master Interface; connect the corresponding camera according to the wireless connection request; collect the video signal of the scene; convert the video signal into a wireless video signal and send it to the video server; receive the wireless video signal and convert it into a video signal; convert the video signal into a specific format video Data; transmit video data to the monitoring computer.

Using the system and method of the present invention, the mobility of the network is improved and the cost is saved.

【Description of drawings】

Fig. 1 is a hardware architecture diagram of the wireless network video surveillance system of the present invention.

Fig. 2 is a functional block diagram of the network server of the wireless network video surveillance system of the present invention.

Fig. 3 is a functional block diagram of the video server of the wireless network video surveillance system of the present invention.

Fig. 4 is a system interface diagram of the wireless network video monitoring system of the present invention.

Fig. 5 is a flow chart of the operation of the wireless network video monitoring method of the present invention.

【Detailed ways】

As shown in FIG. 1 , it is a hardware architecture diagram of the wireless network video monitoring system of the present invention. The system includes: a network server 1 , a video server 2 , a database 3 , an Internet 4 , a connection 5 , multiple cameras 6 , multiple monitor computers 8 , and a wireless network 10 . Multiple monitor computers 8 are connected to a network server 1 through the Internet 4 ; multiple cameras 6 are connected to a video server 2 through a wireless network 10 ; the video server 2 is connected to a database 3 through a connection 5 . Connection 5 is a database connection, such as Open Database Connectivity (ODBC), or Java Database Connectivity (JDBC). The database 3 is used to store user information, user access authority information, and video data files. Among them, user information includes: user profile, user name and password with access rights. The user authority information defines the access authority each user has. The network server 1 is used to judge whether the received user name and password are correct according to the user information, and provide a system main interface if the user name and password are correct. Through this main interface, the camera to be accessed can be selected according to user requirements. A plurality of cameras 6 are distributed in each station, and they are used to collect video signals of each scene, and the video signals collected by the cameras 6 are converted into wireless video signals through the wireless network card 9 and sent to the video server 2 . The video server 2 receives the wireless video signal through the wireless network card 9 and converts it into a video signal; converts the video signal into video data in a specific format; Wherein, the specific format of the video data may be RM (Real Media), AVI (AudioVisual Interface), and MPEG (Motion Picture Expert Group). The monitoring terminal computer 8 includes a video player 7 through which video data in a specific format can be played.

As shown in FIG. 2 , it is a functional block diagram of the network server of the wireless network video surveillance system of the present invention. The network server 1 includes: a user authority control module 11 , an interface acquisition module 12 , a user data maintenance module 13 , and a camera control module 15 . Wherein, the user authority control module 11 is used to receive the user name and password input by the user, and judge whether the user name and password are correct according to the user information stored in the database 3. If the user name and password are wrong, the user is refused to log in. If the password is correct, the interface acquisition module 12 acquires a system main interface (as shown in FIG. 4 ). Through the main interface of the system, the user can select the camera to be accessed, and the video data in a specific format can be played on the main interface of the system through the video player 7 in the monitoring terminal computer 8 . The user data maintenance module 13 is used for adding, deleting and revising user personal basic information and access rights. The camera control module 15 is used to send instructions to the remote camera according to the user's requirements to make it perform corresponding actions (such as focus adjustment, horizontal rotation, and angle adjustment).

As shown in FIG. 3 , it is a functional block diagram of the video server of the wireless network video monitoring system of the present invention. The video server 2 includes: a connection module 21 , a video encoding module 23 , and a data transmission module 24 . Wherein, connection module 21 is used for generating wireless connection request, sends this wireless connection request to camera through wireless network 10, and connects corresponding camera; Video encoding module 23 converts video signal into the video data of specific format; Data transmission module 24 uses To send video data to the monitoring computer. Wherein, the video data is stored in the video server 2 with year/month/day and hour as the file name.

As shown in FIG. 4 , it is a system main interface diagram of the wireless network video monitoring system of the present invention. The system main interface 40 includes: a video window 45, a plurality of camera selection buttons 42 (such as: camera A, camera B, camera C). Each camera selection button 42 corresponds to a camera, and after the user selects a desired camera, the connection module 21 generates a wireless connection request to connect to the corresponding camera. The video encoding module 23 converts the video signal into video data in a specific format; the data transmission module 24 transmits the video data to the monitoring terminal computer. The received video data can be played in the video window 45 by the video player 7 in the monitoring terminal computer 8 . So as to achieve the purpose of real-time monitoring.

As shown in FIG. 5 , it is a flow chart of the operation of the wireless network video monitoring method of the present invention. First, the user authority control module 11 receives the input username and password (step S500), judges whether the username and password are correct according to the user information (step S501), if the username and password are wrong, then refuses the user to log in (step S502), If the user name and password are correct, then the interface acquisition module 12 acquires a system main interface 40 (step S503), after the user clicks the camera selection button in the system main interface 40, the connection module 21 generates a wireless connection request, and sends the Wireless connection request, connect corresponding video camera 8 (step S504) according to wireless connection request, video camera 6 gathers the signal of scene (step S505), the video signal 9 in video camera 6 converts the video signal that gathers into wireless video signal, and through wireless The network 10 sends to the video server 2 (step S506), the wireless network card 9 in the video server 2 receives the wireless video signal, and converts the wireless video signal into a video signal (step S507), and the video encoding module 23 converts the video signal into a specific format The video data (step S508), the data transmission module 24 transmits the video data to the monitoring terminal computer (step S509), and the video player 7 plays the video data in the video window 45 of the system main interface 40 (step S510).

Claims (8)

1. A wireless network video surveillance system, the system comprising: a video server, a wireless network, a plurality of video cameras and a plurality of monitoring terminal computers, characterized in that, wherein: Camera, each camera includes a wireless network card, the wireless network card converts the video signal collected by the camera into a wireless video signal; The video server includes: a connection module, a wireless network card, a video encoding module, and a data transmission module; A connection module, configured to generate a wireless connection request, and connect a corresponding camera through the wireless network according to the wireless connection request; The wireless network card is used to receive the wireless video signal from the camera and convert the wireless video signal into a video signal; The video encoding module converts the video signal converted by the wireless network card into video data in a specific format; The data transmission module is used to transmit the video data to the monitoring terminal computer; The monitoring terminal computer is connected with the network server through an Internet, and the monitoring terminal computer is installed with a video player, and the video data can be played through the video player. 2. The wireless network video monitoring system as claimed in claim 1, further comprising a database, which is connected to the video server through a connection, and is used for storing user information, user access authority information, and video data files. 3. The wireless network video monitoring system as claimed in claim 1, further comprising a network server for judging whether the user name and password received are correct according to the user information, and if the user name and password are correct, a system is provided. Main interface. 4. The wireless network video monitoring system according to claim 1, wherein the camera is connected to the video server through a wireless network. 5. A wireless network video surveillance method, characterized in that the method comprises the steps of: Provide a network server, a video server, a wireless network, multiple cameras, and multiple monitor computers; The web server receives the user name and password input by the user; The network server judges whether the user name and password are correct according to the user information; If the user name and password are correct, a system main interface is obtained; The video server generates a wireless connection request, and connects the camera through the wireless network; The camera collects the video signal of the scene; The wireless network card in the camera converts the video signal into a wireless video signal, and sends it to the video server through the wireless network; The wireless network card in the video server receives the wireless video signal from the camera, and converts the wireless video signal into a video signal; Convert the video signal into video data in a specific format; Send video data in a specific format to the monitoring computer; Play the video data in the main interface of the system through the video player of the monitoring computer. 6. The wireless network video monitoring method as claimed in claim 5, further comprising a step of denying user login if the user name and password are wrong. 7. The wireless network video monitoring method as claimed in claim 5, wherein the specific format of the video data can be: RM (Real Media), AVI (Audio Visual Interface), and MPEG (Motion Picture Expert Group). 8. The wireless network video monitoring method according to claim 5, further comprising a step of storing corresponding video data according to user requirements.

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