CN104184914A - VSAT network-based gateway station fax processing method - Google Patents

Abstract

The invention discloses a very small aperture terminal (VSAT) network-based gateway station fax processing method. According to the method, received data are demodulated; a data processing directory is configured and a parameter needed for fax processing is designated; the demodulated data are processed into a fax; and then the fax is sent to the internet by a switch or is sent to a fixed telephone network by a ground access gateway. Therefore, because the data received by the gateway station are demodulated and then are processed into the fax that can be identified by the internet or the fixed telephone network for sending, communication between the gateway station and the internet in the VSAT network as well as communication between the fixed telephones in the fixed telephone network can be realized.

Description

Gateway station fax processing method based on VSAT network

Technical field

The present invention relates to technical field of data processing, particularly a kind of fax of the gateway station based on VSAT network processing method.

Background technology

VSAT(Very Small Aperture Terminal) satellite communication system has that ground-plane antenna diameter is little, transmitting power is low, economic and practical, be not subject to the advantage such as landform and climatic influences, networking flexibility, in network service, be used widely at present.The above ground portion of VSAT satellite communication system is made up of gateway station, remote terminal and network control unit, the effect of gateway station is the access for remote terminal allocated channel and control remote terminal, remote terminal is the main body of satellite communication network, and VSAT satellite communication network is made up of many remote terminals.

Fax through internet is the fax storage forwarding based on switched telephone network (Public Switched Telephone Network is called for short PSTN) and the Internet, also claims electronic fax.Telephone network, intelligent network and Internet technology have been integrated in fax through internet, its principle is to transfer the file to web fax server by the Internet, converted to by server after the general graphical form of facsimile machine reception, then send to by PSTN in the Common Facsimile Machine or electronic fax number of all parts of the world.The advantages such as fax through internet has conveniently, reliable, expense is low, intelligent monitoring, statistical analysis, are therefore more and more applied.User's application joins after the service of operation fax, will obtain a local fax number, and anyone sends a fax to this number, and fax will be delivered in fax account number with TIFF picture form, also can be forwarded to and specify Email mailbox.

Net Fax Technology is applied to VSAT communication system, can meets the fax demand of VSAT Communications System User.But because fax frame format, data rate that VSAT network uses are all different from other network with the restriction of fax frame length, so the fax in VSAT network will be forwarded to the Internet or fixed-line phone network, the data that must receive VSAT at gateway station are processed, be converted to the facsimile format that the Internet or fixed-line phone network can be identified,, the data that on gateway station, VSAT demodulator produced are reduced to fax, the address information that gateway station provides according to fax, is forwarded to the Internet or fixed-line phone network by this fax.Therefore the method that by the data processing in VSAT network is the Internet or the discernible fax of fixed-line phone network is very necessary.

Summary of the invention

The object of the present invention is to provide a kind of fax of the gateway station based on VSAT network processing method, realizing gateway station in VSAT network by the method will be the fax that other network can be identified to the data processing receiving.

In order to realize foregoing invention object, the invention provides following technical scheme:

A gateway station fax processing method based on VSAT network, comprises step:

1) intermediate-freuqncy signal receiving is exported after No. 16 demodulator demodulation;

(2) gateway station is fax by the data processing after demodulation, specifically comprises step:

(2-1) source of configuration data file storing directory, output fax paper storing directory and source data backup file storing directory, and select the main channel number of pending file and from channel number;

(2-2) create thread, in this thread, call initialization function, configuration fax is processed required parameter, and described parameter comprises tupe, original file data backup path, the result storing path of original document path, original file data type, data after demodulating, the channel number and be transferred to every blocks of data length of pretreatment module of matching;

(2-3) call and start reception and process of transmitting function, judge according to the packet header packet information after gateway station demodulation whether the packet receiving is fax, if not fax, packet is not processed, if fax, fax is taken out from the packet gateway station demodulation, start the data handling procedure of preliminary treatment and distribution module and all Service Processing Module dynamic base simultaneously, complete fax group bag;

(2-4) call status poll function, whether inquiry fax is processed and is completed; If fax has been processed, continue cyclic query; If fax is finished dealing with, call terminating reception process of transmitting function, terminating reception and send-thread stop the data handling procedure of preliminary treatment and distribution module and all Service Processing Module dynamic base simultaneously;

(3) fax is forwarded to LAN port, is sent to the Internet by switch, or is sent to fixed-line phone network by ground IAD.

compared with prior art, beneficial effect of the present invention: first the inventive method carries out demodulation to the data that receive, and then gateway station is processed into the discernible fax in internet by the data after demodulation and sends, and has realized communicating by letter between gateway station and internet Computer in VSAT network.

Brief description of the drawings:

Fig. 1 is the gateway station fax process chart (fax is sent to the Internet) that the present invention is based on VSAT network;

Fig. 2 is the gateway station fax process chart (fax is sent to fixed-line phone network) that the present invention is based on VSAT network;

Fig. 3 is the flow chart of processing output fax in the inventive method;

Fig. 4 is fax spliced map;

Fig. 5 is deposit data read-write operation procedure chart.

Embodiment

Below in conjunction with test example and embodiment, the present invention is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology realizing based on content of the present invention all belong to scope of the present invention.

With reference to figure 1, Fig. 2, a kind of fax of the gateway station based on VSAT network processing method provided by the invention, first carries out demodulation process by No. 16 demodulators to the intermediate-freuqncy signal receiving, and exports data buffer zone after demodulation to; Then gateway station is fax by the data processing after demodulation; Finally fax is forwarded to LAN port, is sent to the Internet by switch, or is sent to fixed-line phone network by ground IAD.

With reference to figure 3, wherein, gateway station is the step of fax by the data processing after demodulation, is specially;

First, in gateway station data administrator, create a new thread, in this thread, calling fax processing module is fax by the data processing after demodulation, concrete: in the thread starting, call initialization function, configuration fax is processed needed parameter, , input original document path, original file data type, original file data backup path (original file data backup path is the output file path in deposit data read-write operation process), result storing path, pairing channel number (be the main channel number of pending source data and from channel number) and be transferred to every blocks of data length of pretreatment module.Deposit data read-write operation process is shown in Fig. 5, and fax processing module reads the data after demodulation from original document path, and then the data that read are write to output file path.

Then call to start and receive and process of transmitting function, judge according to the packet header packet information after gateway station demodulation whether the packet receiving is fax, if not fax, packet is not processed, if fax takes out fax from the packet gateway station demodulation, start the data handling procedure of preliminary treatment and distribution module and all Service Processing Module dynamic base simultaneously, automatic Mosaic fax frame, referring to Fig. 4, composition fax bag.

Finally call status poll function, whether data query is processed and is completed, if data processing does not complete, continue cyclic query, if data processing completes, call terminating reception process of transmitting function, terminating reception and send-thread stop the data handling procedure of preliminary treatment and distribution module and all Service Processing Module dynamic base simultaneously.

Step in this specification in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.

Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing), unless narration especially all can be replaced by other equivalences or the alternative features with similar object.,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.

Claims (1)

1. the fax of the gateway station based on a VSAT network processing method, is characterized in that, comprises step:

(1) intermediate-freuqncy signal receiving is exported after No. 16 demodulator demodulation;

(2) gateway station is fax by the data processing after demodulation, specifically comprises step:

(2-1) source of configuration data file storing directory, output fax paper storing directory and source data backup file storing directory, and select the main channel number of pending file and from channel number;

(2-2) create thread, in this thread, call initialization function, configuration fax is processed required parameter, and described parameter comprises tupe, original file data backup path, the result storing path of original document path, original file data type, data after demodulating, the channel number and be transferred to every blocks of data length of pretreatment module of matching;

(2-3) call and start reception and process of transmitting function, judge according to the packet header packet information after gateway station demodulation whether the packet receiving is fax, if not fax, packet is not processed, if fax, fax is taken out from the packet gateway station demodulation, start the data handling procedure of preliminary treatment and distribution module and all Service Processing Module dynamic base simultaneously, complete fax group bag;

(2-4) call status poll function, whether inquiry fax is processed and is completed; If fax has been processed, continue cyclic query; If fax is finished dealing with, call terminating reception process of transmitting function, terminating reception and send-thread stop the data handling procedure of preliminary treatment and distribution module and all Service Processing Module dynamic base simultaneously;

(3) fax is forwarded to LAN port, is sent to the Internet by switch, or is sent to fixed-line phone network by ground IAD.