CN202696607U - Infrared-based unidirectional data transmission equipment - Google Patents
Infrared-based unidirectional data transmission equipment Download PDFInfo
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- CN202696607U CN202696607U CN 201220089068 CN201220089068U CN202696607U CN 202696607 U CN202696607 U CN 202696607U CN 201220089068 CN201220089068 CN 201220089068 CN 201220089068 U CN201220089068 U CN 201220089068U CN 202696607 U CN202696607 U CN 202696607U
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Abstract
The utility model provides infrared-based unidirectional data transmission equipment, which comprises a data sending unit, a data receiving unit and a unidirectional data transmitting unit; and the data sending unit, the unidirectional data transmitting unit and the data receiving unit are connected in sequence through USB shielding cables. The infrared-based unidirectional data transmission equipment provided by the invention completely realizes unidirectional data transmission on a physical medium, fundamentally solves the problem of low safety of unidirectional data transmission and can ensure that information at the receiving end cannot be leaked to the sending end due to communication.
Description
Technical field
The utility model belongs to the data wireless transmission field, is specifically related to a kind of based on infrared one-way data transmission equipment.
Background technology
Infrared data transmission (IrDa:Infrared Data): be the transfer of data of utilizing between the infrared mode realization computer.
Existing typical infrared data transmission mainly contains following three kinds of application models and corresponding technical scheme:
Be illustrated in figure 1 as the computer application scheme, its main feature is integrated infrared data transmission-receiving function on computers, and the main structure of this scheme is: bus and infrared receiving/transmission head by computer CPU consist of.
Be illustrated in figure 2 as the portable electronic applications scheme, it is the mobile phone infrared communication that the typical case of this scheme uses, its main feature is integrated infrared data transmission-receiving function on cell phone mainboard, and the main structure of this scheme is: bus and infrared receiving/transmission head by mobile phone CPU consist of.
Be illustrated in figure 3 as the infrared transceiver take USB as interface, this scheme main feature is not provide extra infrared communication function for certain has the computer of infrared communication function, the main structure of infrared transceiver is comprised of USB interface chip, single-chip microcomputer and infrared receiving/transmission head, and connects computer by USB cable.
The main construction features of above-mentioned various infrared transmission schemes: same infrared data transmission equipment is reflector, is again receiver.They can carry out with any one uncertain infrared equipment (be equally reflector be again receiver) transmitted in both directions of infrared data, only rely on self individual equipment then can not send, and can not receive.
The groundwork principle of such scheme: after infrared equipment starts, send the infrared reconnaissance signal, search periphery and whether have infrared equipment, if there is infrared equipment to exist, then send Handshake Protocol, inquiry the other side's communication protocol and frequency, the other side replys communication protocol and the traffic rate that oneself can adopt, and when both sides have identical agreement and frequency, then sets up communication and connects, and host computer sent the signal of built vertical infrared channel, thereby can begin to carry out two-way infrared communication.
Present all carries out transfer of data by two-way communication based on infrared data transmission device, be not suitable for the higher occasion of security level required is used, particularly be not suitable for the Internet between the dedicated network, between the network of the network of High Security Level and Low Security Level and the requirement that requires swap data between physically-isolated two networks, be unsuitable for too the needs of secure data exchange between the computer of different level of securitys; And transmitting device be reflector be again receiver, therefore exist data in unauthorized situation by artificial mutual transmission, received and dispatched and stolen by trojan horse the risk of transmission by rogue program; Transmitting device all adopts open transmission means on physique, do not possess the infrared waves protection mechanism, thereby between two equipment except swap data, the data in the transmission also may be monitored and receive to other equipment, causes the fail safe of transfer of data low; These transmitting devices all adopt the infrared receiving/transmission head as the main device of transmitting-receiving, thereby as long as data are placed on the transmission channel, then directly be sent out, do not possess more control function and interface, can not in transmission course, add the basic condition of high-level data security control; And these data transmission sets can be linked into arbitrarily on any computer, and without any technical restriction and control measure, therefore may cause misuse and the abuse of data, cause the invalidation of government's supervising of secure network; On the sending and receiving device of existing transmitting device, all dispose storage device, thereby for some environment to the information security sensitivity, cause easily information to shift with transceiver, thereby cause the needs that information is out of control, can not satisfy security context; Moreover the strategy that resends is adopted in the reconstruct to data in the existing transmitting device, is worthless for large file; Again send out a file, required chronic during especially greater than the file of 1GB, under normal conditions, carry out the transmission of file and only have the data of less than 1% to resend, the data transmission fault for 1% and whole file is resend, this makes the inefficiency of transfer of data.
The utility model content
For overcoming defects, it is a kind of based on infrared one-way data transmission equipment that the utility model provides, realize the one-way transmission of data from the physical medium fully, fundamentally solved the not high problem of fail safe of one-way transmission data, can guarantee that also the information of receiving terminal can be owing to communication is leaked to transmitting terminal.
For achieving the above object, it is a kind of based on infrared one-way data transmission equipment that the utility model provides, and it comprises: data transmission unit and data receiver unit; Its improvements are that described equipment comprises the one-way data transmission unit; Described data transmission unit, described one-way data transmission unit and be connected the data receiver unit and connect by the USB shielded type cable successively.
In the optimal technical scheme that the utility model provides, described one-way data transmission unit comprises unidirectional infrared transmitter and receives the unidirectional infrared remote receiver of its data.
In the second optimal technical scheme that the utility model provides, between described unidirectional infrared transmitter and described unidirectional infrared remote receiver, be provided with the infrared protection cover.
In the 3rd optimal technical scheme that the utility model provides, described unidirectional infrared transmitter comprises firing button, USB chip, micro-control unit 1, infrared control chip 1, memory, infrared emission head and the battery that is arranged in the shell 1; Described data transmission unit is connected by described USB shielded type cable with described USB chip; Described firing button is connected with described micro-control unit with the USB chip and is connected; Described infrared control chip is connected with described micro-control unit, described memory and the infrared emission head of being connected respectively.
In the 4th optimal technical scheme that the utility model provides, described unidirectional infrared remote receiver comprises USB chip, micro-control unit 2, infrared control chip 2 and the infrared receiving terminal that connects successively; Described USB chip is connected by described USB shielded type cable with described data receiver unit; Described USB chip, described micro-control unit 2, described infrared control chip 2 and described infrared receiving terminal are arranged in the shell 2.
In the 5th optimal technical scheme that the utility model provides, described infrared protection cover is cylinder-like structure.
In the 6th optimal technical scheme that the utility model provides, described infrared protection cover uses inorganic wave-absorbing material to make; The inwall of described infrared protection cover is coated with nano-material coating.
In the 7th optimal technical scheme that the utility model provides, described nano-material coating is nano oxidized inferior nickel-silica material.
In the 8th optimal technical scheme that the utility model provides, the inwall of described shell 1 and shell 2 is coated with electro-magnetic screen layer; Described micro-control unit 1,2 all uses model to be the chip of LM3S9B96; Described infrared control chip 1,2 all uses model to be the chip of DSR.IR248; Described infrared emission head and described infrared receiving terminal all use model to be the chip of Vishay; Described USB chip uses model to be the chip of USB20D.
In the 9th optimal technical scheme that the utility model provides, described electro-magnetic screen layer is the Chain Link Fence that is coated with macromolecular material.
Compared with the prior art, what the utility model provided is a kind of based on infrared one-way data transmission equipment, but utilize the characteristic of the untouchable one-way transmission of infrared transmission, realized the one-way transmission of data, need not when setting up transmission channel to shake hands, need not exchange agreement, realized the complete isolation of protocol layer, transport layer; The reflector that provides, receiver all be independently, realized the physical isolation of reception, transmitter; And in the one-way data transmission equipment, provide a kind of protective cover that prevents that infrared waves from leaking, allow infrared communication in the space of fully isolation, transmit, block any possible signals leakiness, thereby prevented extraneous monitoring and eavesdropping to data, improved the fail safe of transmission; Use special-purpose infrared transmission chip, for the condition that provides the foundation is controlled in the transmission that realizes higher level, and realized the security control measure of higher level on this condition basis, can be to the piecemeal that transmits and receive data, cut apart and manage, thereby the reliability, manageability and the fail safe that have improved transfer of data; The integrated control chip of high speed infrared that adopts, high speed infrared are received and dispatched head, all support FIR agreement and the VFIR agreement of IrDA association, and the high speed infrared sending and receiving ability of 4MBPS and 16MBPS is provided, and have improved transmission rate; Also have, only disposed emitting head for transmitter, only disposed Receiver for receiving equipment, prevented that from hardware receiving equipment from sending the possibility of data, transmitter receive data; The reflector of one-way data transmission equipment is provided with local memory space and Computer Storage space, can realize two kinds of different mode of operations, the one, when two different network terminals are in same working region, can realize the directly data one-way transmission from a network terminal to another network terminal; The 2nd, when two different network terminals during not at the same area, then can be by with the data upload of the output network terminal memory space (this is uploaded is to encrypt to upload) to reflector, then equipment is taken to the working region at fan-in network terminal or computer place, by firing button with data sheet to the network terminal that sends to the receiving equipment place; Reflector can use and carry the reserve battery power supply, thereby guarantees that reflector does not carry out any cable physical connection of (comprising power supply) with the receiving terminal service area; And, memory device and memory space are not set on the receiver, only have the data flow of the host computer storage directory from the infrared receiving terminal to the appointment, and do not possess the reverse data flow direction from the computer to the receiver, thereby prevented any write operation from the computer to the receiver; Moreover, equipment provides a kind of interface mode for subsequent use, this interface mode can realize that receiving equipment is identified as USB common apparatus rather than memory device, therefore, can be correctly validated at some secure network and computer of forbidding USB flash disk, USB CD-ROM drive, thereby realize its data input function.Overcome existing equipment and identified in the USB flash disk mode on computers, thereby caused out of use problem on some secure network.
Description of drawings
Fig. 1 is the computer application scheme of infrared data transmission in the prior art.
Fig. 2 is the portable electronic applications scheme of infrared data transmission in the prior art.
Fig. 3 is the application scheme of the infrared transceiver take USB as interface in the prior art.
Fig. 4 is the unidirectional infrared transmitter based on infrared one-way data transmission equipment.
Fig. 5 is the unidirectional infrared remote receiver based on infrared one-way data transmission equipment.
Fig. 6 is the structural representation Fig. 1 based on infrared one-way data transmission equipment.
Fig. 7 is the structural representation Fig. 2 based on infrared one-way data transmission equipment.
Fig. 8 is the structural representation of infrared protection cover.
Fig. 9 is the external structure schematic diagram of Receiver and emitting head.
Embodiment
Shown in Fig. 6,7, a kind of based on infrared one-way data transmission equipment, it comprises: data transmission unit and data receiver unit; Described equipment comprises the one-way data transmission unit; Described data transmission unit, described one-way data transmission unit and be connected the data receiver unit and connect by the USB shielded type cable successively.
Described data transmission unit and described data receiver unit all are computer or the network terminal; Described one-way data transmission unit comprises interconnective unidirectional infrared transmitter and unidirectional infrared remote receiver.
Between described unidirectional infrared transmitter and described unidirectional infrared remote receiver, be provided with the infrared protection cover.
As shown in Figure 8, described infrared protection cover from the end vertically inwardly this section internal diameter of 3mm than the little 0.8mm of internal diameter of remainder; Described infrared protection cover is provided with respectively installing retaining ring apart from every end margin 1.5mm place.Described installing retaining ring is positioned on the infrared protection cover inwall, and height of projection is 0.3mm.Described unidirectional infrared transmitter and described unidirectional infrared remote receiver are respectively arranged with the protective cover installation module that is used with described installing retaining ring.Described protective cover installation module comprises the torus 1,2 take the line of described infrared emission head and described infrared receiving terminal as axis.Described torus 1, an end of 2 are fitted with described shell 1,2 respectively, and the other end is opening; Described opening is tubaeform; The internal diameter of described opening is that 4-6mm, external diameter are that 16-20mm, length are 8-10mm.Described torus 1,2 outer walls at distance edge of opening 1.5mm are respectively arranged with the spill bayonet socket that the degree of depth is 0.3mm.Described opening 1, the 2nd, circular.
As shown in Figure 4, described unidirectional infrared transmitter comprises firing button, USB chip, micro-control unit 1, infrared control chip 1, memory, infrared emission head and battery; Described firing button, described USB chip, described micro-control unit 1, described infrared control chip 1, described memory, described infrared emission head and described battery all are arranged in the shell 1; Described data transmission unit is connected by described USB shielded type cable with described USB chip; Described firing button is connected with described micro-control unit with the USB chip and is connected; Described infrared control chip is connected with described micro-control unit, described memory and the infrared emission head of being connected respectively.
As shown in Figure 5, described unidirectional infrared remote receiver comprises USB chip, micro-control unit 2, infrared control chip 2 and the infrared receiving terminal that connects successively; Described USB chip is connected by described USB shielded type cable with described data receiver unit; Described USB chip, described micro-control unit 2, described infrared control chip 2 and described infrared receiving terminal are arranged in the shell 2.
The inboard of described shell 1 and shell 2 is provided with electro-magnetic screen layer; Described micro-control unit 1,2 all uses model to be the chip of LM3S9B96; Described infrared control chip 1,2 all uses model to be the chip of DSR.IR248; Described infrared emission head and described infrared receiving terminal all use model to be the chip of Vishay; Described USB chip uses model to be the chip of USB20D.
The inboard of described shell 1 and shell 2 is provided with electro-magnetic screen layer; Described electro-magnetic screen layer is the Chain Link Fence that is coated with macromolecular material.
Described micro-control unit 1 and described micro-control unit 2 all use model to be the chip of LM3S9B96.Described infrared control chip 1 and described infrared control chip 2 all use model to be the chip of DSR.IR248.Described memory is flash memory or hard disk.Described infrared emission head and described infrared receiving terminal all use model to be the chip of Vishay.
As shown in Figure 9, be the external structure schematic diagram of Receiver and emitting head.
Provided by the invention based on infrared one-way data transmission equipment, the subject matter that at first solves is, but be the characteristic of utilizing the untouchable one-way transmission of infrared transmission, realized the one-way transmission of data, the foundation that realizes transmission channel need not to shake hands, need not exchange agreement, realized the complete isolation of protocol layer, transport layer.
The reflector that technical scheme of the present invention provides, receiver all are independently, it is different from existing scheme transceiver all is one, not only make reflector but also make receiver, but reflector just can only be as reflector, receiver just can only be as receiver, thereby has realized the physical isolation of reception, transmitter.
A kind of protection mechanism that prevents that infrared waves from leaking is provided, has allowed infrared communication in the space of fully isolation, transmit, blocked any possible signals leakiness, thereby prevented monitoring, eavesdropping, improved the fail safe of transmission.
Use special-purpose infrared transmission chip, for the condition that provides the foundation is controlled in the transmission that realizes higher level, and realized the security control measure of higher level-to the piecemeal that transmits and receive data on this condition basis, cut apart and manage, thereby improved reliability, manageability, the fail safe of transmission.
The integrated control chip of the high speed infrared that the technical program adopts, high speed infrared transmitting-receiving head, all support FIR agreement and the VFIR agreement of IrDA association, the high speed infrared sending and receiving ability of 4MBPS and 16MBPS is provided, has realized the highest transmission rate in the present technical scheme.
For transmitter, only disposed emitting head, for receiving equipment, only disposed Receiver, prevented that from hardware receiving equipment from sending the possibility of data, transmitter receive data.
The receiver of this equipment is provided with local memory space and Computer Storage space, can realize two kinds of different mode of operations, the one, when two different network terminals are in same working region, can realize the directly data one-way transmission from a network terminal to another network terminal; The 2nd, when two different network terminals during not at the same area, then can be by with the data upload of the output network terminal memory space (this is uploaded is to encrypt to upload) to reflector, then equipment is taken to the working region at fan-in network terminal or computer place, the button by reflector with data sheet to the network terminal that sends to the receiving equipment place.Reflector can use and carry the reserve battery power supply, thereby guarantees that reflector does not carry out any cable physical connection of (comprising power supply) with the receiving terminal service area.
Memory device and memory space are not set on the receiver of this equipment, the data flow of only having the host computer storage directory from the infrared receiving terminal to the appointment, and the reverse data that does not possess from the computer to the receiver flows to, thereby prevented that any data from the computer to the receiver from writing possibility.
This equipment provides a kind of interface mode for subsequent use, this interface mode can realize that receiving equipment is identified as USB common apparatus rather than memory device, therefore, can be correctly validated at some secure network and computer of forbidding USB flash disk, USB CD-ROM drive, thereby realize its data input function.Overcome existing equipment and identified in the USB flash disk mode on computers, thereby caused out of use problem on some secure network.
Encrypted system identifies and authenticates on the refined net to be supported in.
Technical scheme provided by the present invention and product, efficiently solve the safety issue of the transmission of data between heterogeneous networks, the different computer, realized the complete physical isolation of transmission, and the one-way of protocol layer, transport layer, transfer of data at a high speed is provided simultaneously, has satisfied the needs of high-speed data exchange under the various security contexts.
The soluble problem of infrared protection cover comprises:
1) infrared waves in preventing from transmitting leaks and is stolen by the third party;
2) prevent that other light waves of third party from intruding into the light wave in the transmission and affecting normal transmission;
3) reduce even stop infrared transmission to interference and the radiation of other equipment and personnel in the environment.
4) use protective cover will solve following problem afterwards: thus prevent that infrared waves from constantly reflecting, reflecting the normal transmission of interference in protective cover.For this reason, we have adopted two kinds of technical measures: the one, but the inorganic material of using a kind of machining with strong absorption infrared waves as the basic material of making protective cover (this equipment adopts the inorganic material of a kind of being called " NM the type "-sky, Dalian microwave absorbing material Co., Ltd to produce), making becomes tubulose protective cover foundation structure part; The 2nd, on the basis of aforementioned this structural member, evenly spray the nano-material coating (nano oxidized inferior nickel-SiO material) that the thick high strength of 0.5mm absorbs near-infrared light waves at its inside pipe wall, this nano material has the highest absorption efficiency to the near-infrared light waves of 650nm～1mm, and the infrared communication light wave that this equipment adopts is between 850mm～900mm, specifically wave band is 880mm～900mm, just the best service band of this nano material wave absorbing efficiency.
5) technology by using protective cover and using at this protective cover has realized the perfect adaptation of fail safe and validity, reliability.
3, the physical specification of protective cover:
1) adopt material: but the inorganic material of machining with strong absorption infrared waves and is aided with nano wave-absorption coating (SiO) as the basic material (NM type absorbing material) of making protective cover.
2) material colour system: basic protective cover tubing adopts Dark grey, and the nano wave-absorption coating adopts black, more than be based on dark color with look, particularly black is better than other colors to the assimilation effect of infrared waves.
3) physical size: this protective cover length 55mm; External diameter 17.5mm, internal diameter 15.5mm, wall thickness 2mm (containing coating).
4) other specifications: begin at 3mm place, protective cover two ends, external diameter shrinks 0.8mm, and at distance two edge tail 1.5mm places, is provided with one and protrudes the 0.3mm installing retaining ring, this latch closure is the compressible rubber latch closure, with make it with reflector and receiver on the installation bayonet socket be connected mutually locking.
4, the mounting structure corresponding with protective cover is on reflector, acceptor unit:
1) horn-type opening centered by the sending and receiving head, is constructed in the casing outside.
2) aforementioned this horn-type opening internal orifice (horn mouth osculum one end) diameter 5mm, collar extension diameter 18mm, depth 9mm.
3) have a ring shaped slot at horn mouth apart from outside 3mm place, apart from outer ledge 1.5mm place, have the spill bayonet socket of a 0.3mm in the groove width 1.2mm, this groove, the convex installing ring of this bayonet socket and protective cover end interlocks, to realize the protective cover locking.
5, being installed as between this protective cover and the sending and receiving unit exempted from tool-type, during the installation or removal protective cover, only need to hold respectively equipment and protective cover with hand, slightly be forced into, or dial-out gets final product.
What need statement is that content of the present invention and embodiment are intended to prove the practical application of technical scheme provided by the present invention, should not be construed as the restriction to protection range of the present invention.Those skilled in the art can do various modifications, be equal to and replace or improve inspired by the spirit and principles of the present invention.But these changes or modification are all in the protection range that application is awaited the reply.
Claims (10)
1. one kind based on infrared one-way data transmission equipment, and it comprises: data transmission unit and data receiver unit; It is characterized in that described equipment comprises the one-way data transmission unit; Described data transmission unit, described one-way data transmission unit and be connected the data receiver unit and connect by the USB shielded type cable successively.
2. equipment according to claim 1 is characterized in that, described one-way data transmission unit comprises unidirectional infrared transmitter and receives the unidirectional infrared remote receiver of its data.
3. equipment according to claim 2 is characterized in that, is provided with the infrared protection cover between described unidirectional infrared transmitter and described unidirectional infrared remote receiver.
4. equipment according to claim 2 is characterized in that, described unidirectional infrared transmitter comprises firing button, USB chip, micro-control unit 1, infrared control chip 1, memory, infrared emission head and the battery that is arranged in the shell 1; Described data transmission unit is connected by described USB shielded type cable with described USB chip; Described firing button is connected with described micro-control unit with the USB chip and is connected; Described infrared control chip is connected with described micro-control unit, described memory and the infrared emission head of being connected respectively.
5. equipment according to claim 2 is characterized in that, described unidirectional infrared remote receiver comprises USB chip, micro-control unit 2, infrared control chip 2 and the infrared receiving terminal that connects successively; Described USB chip is connected by described USB shielded type cable with described data receiver unit; Described USB chip, described micro-control unit 2, described infrared control chip 2 and described infrared receiving terminal are arranged in the shell 2.
6. equipment according to claim 3 is characterized in that, described infrared protection cover is cylinder-like structure.
7. according to claim 3 or 6 described equipment, it is characterized in that described infrared protection cover uses inorganic wave-absorbing material to make; The inwall of described infrared protection cover is coated with nano-material coating.
8. equipment according to claim 7 is characterized in that, described nano-material coating is nano oxidized inferior nickel-silica material.
9. according to claim 4 or 5 described equipment, it is characterized in that the inwall of described shell 1 and shell 2 is coated with electro-magnetic screen layer; Described micro-control unit 1,2 all uses model to be the chip of LM3S9B96; Described infrared control chip 1,2 all uses model to be the chip of DSR.IR248; Described infrared emission head and described infrared receiving terminal all use model to be the chip of Vishay; Described USB chip uses model to be the chip of USB20D.
10. equipment according to claim 9 is characterized in that, described electro-magnetic screen layer is the Chain Link Fence that is coated with macromolecular material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220089068 CN202696607U (en) | 2012-03-12 | 2012-03-12 | Infrared-based unidirectional data transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220089068 CN202696607U (en) | 2012-03-12 | 2012-03-12 | Infrared-based unidirectional data transmission equipment |
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| CN202696607U true CN202696607U (en) | 2013-01-23 |
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| CN 201220089068 Expired - Fee Related CN202696607U (en) | 2012-03-12 | 2012-03-12 | Infrared-based unidirectional data transmission equipment |
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| CN (1) | CN202696607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624445A (en) * | 2012-03-12 | 2012-08-01 | 成都龙冠科技实业有限公司 | Infrared-based unidirectional data transmission equipment |
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2012
- 2012-03-12 CN CN 201220089068 patent/CN202696607U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624445A (en) * | 2012-03-12 | 2012-08-01 | 成都龙冠科技实业有限公司 | Infrared-based unidirectional data transmission equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20160312 |