Meteorological science popularization early warning information distribution platform
Technical field
The present invention relates to meteorological science popularization early warning information distribution platform, belong to the wireless communication technology application.
Background technology
The domestic mode kind of LED screen display public's demand information of utilizing is more at present, but mostly be subjected to restriction in a certain respect and make it and large-arealy to cover, be difficult to reach timely, effectively, the effect that the audient is wide, system for traffic guiding as Beijing, LED display is installed in the fixed location adopts wired broadband network transmission information, though solved the problem of information transfer rate, but brought area coverage narrow simultaneously, the problem that does not possess mobility, and the mode of the synchronous transmission display message that adopts of the inner LED display of using of enterprises and institutions, therefore do not possess the ability of off line (asynchronous) display message.What early stage wireless transmission method mostly used is the GPRS mobile radio network, and its speed is low, confidentiality is poor, is difficult to early warning information fast, accurately, issue to society widely.
Summary of the invention
Meteorological science popularization early warning information distribution platform purpose is, to there be the weather information of harm quick, be distributed to masses accurately, serve government, concurrent cloth science and technology, culture, information such as nature, because very ripe indoor of the present domestic development of meteorological science popularization early warning information distribution platform utilization, outdoor LED dual base color display screen, the control that display control card carries out information shows, DTU technical grade wireless communication data transmission terminal equipment, CHINAUNICOM the CDMA2000 1X 2.75 generation mobile radio network that provides is provided carries out the reception and the transmission of information data by the VPDN Virtual Data Network.By editing server editor arrangement, the msu message content, through the central information group of server, large-scale information management, editor, releasing software carries out the editor of information, send, storage, and to the management of each terminal (LED display), meteorological science popularization early warning information distribution platform, it is characterized in that it is by editing manager A, group of server B, router (7), wireless network layer C, end device D forms, wherein editing and reviseing manager A is made up of administration monitor (1) and editor's audit manager (2), insert wired early warning information by administration monitor (1), and with information transmission to editor audit manager (2), carry out literal and edit information image, form information packet, be connected to data server (4) and backup server (6) among the group of server B by editor's audit manager (2) output interface, group of server B is by data server (4), backup server (6), information center's server (3), aaa authentication server (5) is formed, in data server (4) is put packet at a fixed time, to upload the packet that passes through to information center's server (3), simultaneously information back-up is arrived backup server (6), storage releases news in a large number in information center's server (3), receive authentication by aaa authentication server (5), aaa authentication server (5) passes through interface, line couple in router (7), carry out the data route by the LNS tunnel with L2TP agreement and UNICOM, router (7) output interface is connected to the CDMA-1X of UNICOM wireless network layer by wire cable, carry out wireless transmission through the CDMA-1X of UNICOM wireless network layer, end device D is by DTU wireless data transmission terminal (8), display control card (9), LED dual base color display screen (10) is formed, reach the standard grade and handshake by aaa server authentication by DTU wireless data transmission terminal (8) dial-up success, received signal also begins search data, pass through interface, data line connects display control card (9), identification shows the control routine packet, the data slicer that receives is healed into complete data, connect LED dual base color display screen (10), display text or picture information on LED dual base color display screen then by data line.
Above equipment, the mode of combination of network have solved: the problem of wireless mobile communications bandwidth, possess the stable data transmission of 80~130Kbps, and can satisfy the demand of most of data transmission.Adopt the mode of asynchronous transmission, the information dispatching centre is closed information on the screen with unaffected normal demonstration.What adopt is mobile radio network, is not subjected to the region, and the restriction of landform shows as long as just can realize the transmission of information within the CDMA coverage.
Description of drawings
Figure one is the utility model principle of work block diagram.
Above figure number and title: A, editing server 1, administration monitor, 2 editor's audit manager, B, group of server, 3, information center's server, 4, data server, 5, the aaa authentication server, 6, backup server, 7, router, C, the CDMA-1X of UNICOM wireless network layer, D, end device, 8, DTU, 9, display control card, 10, LED dual base color display screen.
Embodiment
The utility model can make weather information, early warning information convey to each community in time, fast, carries out the precautionary measures in advance, the loss of deduction and exemption life, property.Now in conjunction with the accompanying drawings, be mounted in the management software of editing and reviseing in the server 1 about administration monitor 2, operating personnel check, are provided with duty and the function setting of any end device D in this locality.
With its feature to following description: the CDMA2000 1X2.75 that this platform at first relies on CHINAUNICOM to provide schemes VPDN Virtual Data Network C by way of example for mobile radio network and carries out transmission of Information, the network center of information sender makes low end router 7 carry out the data route by the LNS tunnel with L2TP agreement and UNICOM with the application system based on ICP/IP protocol.After the connection of guaranteeing both sides is set up successfully, utilization is at the ingredient of aaa authentication server 5 (high-performance computer of the aaa software that is provided by aaa software producer is installed) to the DTU8 in the end device D (wireless data transmission device), the affiliated card number of UIM card (SIM cards of mobile phones) that is provided by CHINAUNICOM distributes fixedly IP, and authentication username and password are set.Have only authentication DTU8 could dial in information center's server 3 automatically by aaa server.Meteorological science popularization early warning information distribution platform mainly sends literal to community, graphical information, the editor of information relies on fully and is information editing's software of platform development specially, it is exactly the editor's audit manager 2 in the editing server A in the exemplary graph, the function of this software is with literal, image file with can be merged into a packet by the demonstration control routine of the display control card among the end device D 9 identification.Show that wherein control routine comprises the I and II character library corresponding character code built-in with display control card 9, clock control code, information display mode code, area code, text color code.Information will record when editor finishes in the database in the data server 4 among the group of server B (high-performance computer of integrated ORACLE, SQLSERVER database software) automatically, database is realized the recorded and stored to information data, inquiry is called.6 pairs of data of backup server are carried out the secondary preservation, can in time adopt remedial measures when unexpected situation occurring.Data server 4 at a fixed time in, will upload the information packet of passing through by the audit of editor's audit manager 2 to information center's server 3.Information center's server 3 is one the special server that sends software for the information of platform development has been installed.Information center's server 3 has shown the state that works online of all end device D.And the end device D that does not have operate as normal reported.Be responsible for accepting that the DTU dial-up success is reached the standard grade and the handshake by the aaa server authentication, receive that the duty of information center's identification terminal is normal behind the signal, and begin up-to-date typing and information in the search data server by examining, whether information is upgraded with time point is as the criterion.Information center's server 3 sends to the CDMA-1X of UNICOM wireless network layer C just the VPDN Virtual Data Network with information packet from private line network, the packed ICP/IP protocol of information packet in this process, be cut into the TCP/IP packet, the TCP/IP packet is received by DTU8 by CDMA-1X wireless network layer C, DTU does not give any agreement of packet encapsulation in receiving course, realizes transparent transmission.Cutting into volume with the R232 agreement afterwards is that the packet of 1024 bytes sends to display control card 9 by standard serial port with packet, the integrated FLASH memory block of 512K on the display control card 9, possesses storage capacity, the data slicer that sends over can be healed into complete data, read the control information code, then display text or pictorial information on LED dual base color display screen.Information is issued at LED dual base color display screen from the editing server A and shows that whole process is the fastest for showing immediately, is no more than 60 seconds the most slowly.
Installation work is fairly simple, as long as will edit and revise server A, by interface Connection Service device group B, couple in router 7 and the cdma wireless network layer C of UNICOM, DTU8 in the terminal D, display control card 9 connect transfers logical being installed in the framework of LED dual base color display screen, is installed to the reception that community just can realize meteorology, early warning information.
Just can make weather information by above-mentioned workflow, early warning information sends to the community that meteorological science popularization early warning information distribution platform has been installed in time.