CN105120241A - Method and device for synchronously acquiring graphical and textual information from insulated networks - Google Patents
Method and device for synchronously acquiring graphical and textual information from insulated networks Download PDFInfo
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- CN105120241A CN105120241A CN201510621333.0A CN201510621333A CN105120241A CN 105120241 A CN105120241 A CN 105120241A CN 201510621333 A CN201510621333 A CN 201510621333A CN 105120241 A CN105120241 A CN 105120241A
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Abstract
Analog video signals in a display device connected with an outer net are acquired by an analog video signal acquisition device, the analog video signals are converted into digital video signals through a video signal analog-to-digital conversion device, and the digital video signals are sent to a data processing device connected with an intranet and are converted into graphics and texts through data processing, so that the one-way conversion and the instant transmission of simple business information of two nets can be realized. Due to the acquired analog video signals and the information being converted in one-way and transmitted instantly, the safety is high, the influence of extraneous environment can be prevented, the reliability is high, the information acquisition can be completed at one time, and the efficiency is high.
Description
Technical field
The present invention relates to a kind of method and device thereof of synchronous acquisition graph text information, particularly relate to a kind of method and the device thereof that gather graph text information from isolated Network Synchronization.
Background technology
Along with development and the managerial demand of self of computer techno-stress technology, in some enterprises of unit that is important, that be related to national security interests and social stability, more and more pay attention to informationalized construction, the level of informatization is also more and more higher.But while information work achieves great-leap-forward development, also bring information security issue.In order to ensure information safety, country has also put into effect many laws and regulations, according to the requirement of country to information security hierarchical protection and relevant laws and regulations, the network (Intranet) of some important department inside is required to be isolated with extraneous network (outer net) physics, carry out two net isolation to build, but in some cases, Intranet needs externally online information, as aviation, the network of railway traffic department needs to check passenger information on airport and scene, station, registration, the internal network of public security department also needs to gather passenger information such as identity document simultaneously.Although the information security level greatly improving internal network (Intranet) is built in two net isolation, but face a new problem, namely between intranet and extranet, information security is restricted alternately, and confidentiality (Confidentiality) and availability (Availability) contradiction are protruded day by day.More existing means are when outer net gathers, and Intranet, by making a video recording to being connected to image information shown on outer online display, then by carrying out image recognition to obtained image, obtains required information.But this means can due to the impact of external environment condition, and image information is easily interfered, and causes information distortion, and information gathering quality is low.Some directly takes the mode of outer net, Intranet difference repeated acquisition, although this mode confidentiality is given prominence to, labour intensity is multiplied, inefficiency, and if operator neglects or lacks a sense of responsibility, just likely cause information gathering to be omitted, reliability is not high.
Summary of the invention
The object of the invention is to the deficiency existed to overcome prior art, and provide simple, easy to use efficient, the reliable operation of a kind of structure and the high method and the device thereof that gather graph text information from isolated Network Synchronization of confidentiality.
For achieving the above object, the invention provides following method: a kind of method gathering graph text information from isolated Network Synchronization, it is characterized in that: be connected to the analog video signal in outer online display unit by the collection of analog video signal harvester, then described analog video signal is converted to digital video signal by vision signal analog-digital commutator, described digital video signal is delivered to be connected in interior online data processing equipment again and convert digital video signal to picture and text text by data processing, then identified by picture and text identification software.
In order to realize said method, invention further provides as lower device: as described in device comprise analog video signal harvester, vision signal analog-digital commutator and data processing equipment, converting unit digital video signal being converted to picture and text text is comprised in described data processing equipment, described analog video signal harvester is provided with one for gathering the analog video signal output of the analog video signal input of analog video signal in outer online display unit and or more, described analog video signal output is connected with the analog video signal input of vision signal analog-digital commutator, the digital video signal output of described vision signal analog-digital commutator is connected with the data input pin of data processing equipment.
The present invention is connected to the analog video signal in outer online display unit by the collection of analog video signal harvester, then described analog video signal is converted to digital video signal by vision signal analog-digital commutator, described digital video signal is delivered to be connected in interior online data processing equipment again and convert digital video signal to picture and text text by data processing, carry out identification by picture and text identification software again and obtain information needed, realize the unidirectional conversion of the simple business information of two nets and immediately transmit.The present invention is simulation screen signal due to what gather, and information is unidirectional conversion immediately transmits, and therefore fail safe is very high, and can not be subject to the impact of external environment, and reliability is high, and information gathering simultaneously once completes, and efficiency is high.
Below in conjunction with drawings and the specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is specific embodiment of the invention theory structure block diagram.
Embodiment
The method gathering graph text information from isolated Network Synchronization of the present invention, its overall plan is the analog video signal be connected to by the collection of analog video signal harvester in outer online display unit 1, then described analog video signal is converted to digital video signal by vision signal analog-digital commutator, for different display unit, analog video signal wherein can be VGA vision signal, also can be the analog video signal of other types, as S-VIDEO vision signal, digital video signal after conversion can be with the transmission of USB form, or other forms, as PCI etc., described digital video signal is delivered to be connected in interior online data processing equipment again and convert digital video signal to picture and text text by data processing, as bmp format text, again by inner picture and text identification software, to in picture and text want the information on recognizing site (numeral or English alphabet) to carry out identification to obtain information needed.
As shown in Figure 1, the device realizing gathering from isolated Network Synchronization the method for graph text information comprises analog video signal harvester 2, vision signal analog-digital commutator 3 and data processing equipment 4, converting unit digital video signal being converted to picture and text text and picture and text recognition unit is comprised in described data processing equipment 4, described analog video signal harvester 2 is provided with one for gathering the analog video signal output of the analog video signal input of analog video signal in outer online display unit and or more, described analog video signal output is connected with the analog video signal input of vision signal analog-digital commutator 3, the digital video signal output of described vision signal analog-digital commutator 3 is connected with the data input pin of data processing equipment 4.Because the terminal in current network is PC substantially, described analog video signal harvester 2 is preferably VGA video distributor, described vision signal analog-digital commutator 3 is VGA/USB transducer, described VGA video distributor is provided with one for gathering the VGA signal output part of the VGA signal input part of display in outer online display unit and or more, described VGA signal output part is connected with the VGA signal input part of VGA/USB transducer, the usb signal output of described VGA/USB transducer is connected with the usb signal input of data processing equipment 4.In this specific embodiment, described analog video signal harvester 2 is one-to-two VGA video distributor, the VGA signal input part of described VGA video distributor be connected to outer online source video signal and export main frame and be connected, one in two VGA signal output parts is connected with the VGA signal input part of VGA/USB transducer, and another VGA signal output part and described source video signal export host display and be connected.
Described data processing equipment 4 can be various microprocessor system or the computer system with data-handling capacity, as embedded system, PC etc., the picture and text recognizer stored in system picture and text text identifies forms described converting unit and picture and text recognition unit, picture and text recognizer can adopt prior art, information (numeral or English alphabet) on the ad-hoc location that will identify in the picture and text text converted to by digital video signal by picture and text recognizer is as identification card number, flight number, the information such as name identify, then store according to the mode preset, or display on Intranet display 5 on data processing equipment 4.
Above-mentioned specific embodiment should be understood only for illustration of preferred embodiment; and be not limitation of the present invention; after the content of having read the present invention's record; those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within protection scope of the present invention equally.
Claims (4)
1. one kind gathers the method for graph text information from isolated Network Synchronization, it is characterized in that: be connected to the analog video signal in outer online display unit by the collection of analog video signal harvester, then described analog video signal is converted to digital video signal by vision signal analog-digital commutator, described digital video signal is delivered to be connected in interior online data processing equipment again and convert digital video signal to picture and text text by data processing, then identified by picture and text identification software.
2. one kind realizes the device of method described in claim 1, it is characterized in that: described device comprises analog video signal harvester, vision signal analog-digital commutator and data processing equipment, converting unit digital video signal being converted to picture and text text and picture and text recognition unit is comprised in described data processing equipment, described analog video signal harvester is provided with one for gathering the analog video signal output of the analog video signal input of analog video signal in outer online display unit and or more, described analog video signal output is connected with the analog video signal input of vision signal analog-digital commutator, the digital video signal output of described vision signal analog-digital commutator is connected with the data input pin of data processing equipment.
3. device according to claim 2, it is characterized in that: described analog video signal harvester is VGA video distributor, described vision signal analog-digital commutator is VGA/USB transducer, described VGA video distributor is provided with one for gathering the VGA signal output part of the VGA signal input part of display in outer online display unit and or more, described VGA signal output part is connected with the VGA signal input part of VGA/USB transducer, the usb signal output of described VGA/USB transducer is connected with the usb signal input of data processing equipment.
4. method and the device thereof gathering graph text information from isolated Network Synchronization according to claim 3, is characterized in that: described analog video signal harvester is one-to-two VGA video distributor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510621333.0A CN105120241A (en) | 2015-09-25 | 2015-09-25 | Method and device for synchronously acquiring graphical and textual information from insulated networks |
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| CN201510621333.0A CN105120241A (en) | 2015-09-25 | 2015-09-25 | Method and device for synchronously acquiring graphical and textual information from insulated networks |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109474834A (en) * | 2018-12-24 | 2019-03-15 | 福建威盾科技有限公司 | A kind of application system and method for video data non-damage drive |
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Application publication date: 20151202 |