CN102624445A - Infrared-based unidirectional data transmission equipment - Google Patents
Infrared-based unidirectional data transmission equipment Download PDFInfo
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- CN102624445A CN102624445A CN2012100627254A CN201210062725A CN102624445A CN 102624445 A CN102624445 A CN 102624445A CN 2012100627254 A CN2012100627254 A CN 2012100627254A CN 201210062725 A CN201210062725 A CN 201210062725A CN 102624445 A CN102624445 A CN 102624445A
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Abstract
The invention 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 invention belongs to the data wireless transmission field, be specifically related to a kind of based on infrared one-way data transmission equipment.
Background technology
Infrared data transmission (IrDa:Infrared Data): be to utilize infrared mode to realize the transfer of data between the computer.
Existing typical infrared data transmission mainly contains following three kinds of application models and corresponding techniques scheme:
Be illustrated in figure 1 as the computer application scheme, its main feature is integrated on computers infrared data transmission-receiving function, and the main structure of this scheme is: bus and infrared receiving/transmission head by computer CPU constitute.
Be illustrated in figure 2 as the portable electronic applications scheme; The typical application of this scheme is the mobile phone infrared communication; Its main feature is an 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 constitute.
Be illustrated in figure 3 as with USB is the infrared transceiver of interface; This scheme main feature is for certain has the computer of infrared communication function extra infrared communication function not to be provided; The main structure of infrared transceiver is made up of USB interface chip, single-chip microcomputer and infrared receiving/transmission head, and connects computer through USB cable.
The main construction features of above-mentioned various Infrared Transmission schemes: same infrared data transmission equipment is a reflector, is again receiver.They can carry out the transmitted in both directions of infrared data with any uncertain infrared equipment (be equally reflector be again receiver), only rely on self individual equipment then can not send, and can not receive.
The groundwork principle of such scheme: infrared equipment sends the infrared reconnaissance signal after starting, and searches periphery and whether has 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 setting up infrared channel, thereby can begin to carry out two-way infrared communication.
Present all carries out transfer of data through 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 inappropriate for the needs of secure data exchange between the computer of different level of securitys too; And transmitting device be reflector be again receiver, therefore exist data under unauthorized situation by artificial mutual transmission, steal the risk of transmission by the rogue program transmitting-receiving with by trojan horse; 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 possibly monitored and receive to other equipment also, causes safety of data transmission low; These transmitting devices all adopt the main device of infrared receiving/transmission head as 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 have no technical restriction and control measure, therefore possibly cause the misuse and the abuse of data, cause the supervision of secure network to be lost efficacy; On the sending and receiving device of existing transmitting device, all dispose storage device, thereby, cause information to shift easily, thereby cause the needs that information is out of control, can not satisfy security context with transceiver for some environment responsive to information security; Moreover the strategy that resends is adopted in the reconstruct to data in the existing transmitting device, is worthless for big 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 have only 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.
Summary of the invention
For overcoming above-mentioned defective; The invention provides a kind of based on infrared one-way data transmission equipment; Realize the one-way transmission of data from the physical medium fully; Fundamentally solved the not high problem of one-way transmission safety of data, can guarantee that also the information of receiving terminal can be owing to communication is leaked to transmitting terminal.
For realizing above-mentioned purpose, it is a kind of based on infrared one-way data transmission equipment that the present invention provides, and it comprises: data transmission unit and Data Receiving unit; Its improvements are that said equipment comprises the one-way data transmission unit; Said data transmission unit, said one-way data transmission unit and said Data Receiving unit are connected through the USB shielded type cable successively.
In the optimal technical scheme provided by the invention, said data transmission unit and said Data Receiving unit all are the computer or the network terminal.
In second optimal technical scheme provided by the invention, said one-way data transmission unit comprises unidirectional infrared transmitter and the unidirectional infrared remote receiver that receives its data.
In the 3rd optimal technical scheme provided by the invention, between said unidirectional infrared transmitter and said unidirectional infrared remote receiver, be provided with the infrared protection cover.
In the 4th optimal technical scheme provided by the invention, said 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; Said data transmission unit is connected through said USB shielded type cable with said USB chip; Said firing button is connected with said micro-control unit respectively with the USB chip; Said infrared control chip is connected with said micro-control unit, said memory and said infrared emission head respectively.
In the 5th optimal technical scheme provided by the invention, said unidirectional infrared remote receiver comprises USB chip, micro-control unit 2, infrared control chip 2 and the infrared receiving terminal that connects successively; Said USB chip is connected through said USB shielded type cable with said Data Receiving unit; Said USB chip, said micro-control unit 2, said infrared control chip 2 and said infrared receiving terminal are arranged in the shell 2.
In the 6th optimal technical scheme provided by the invention, said infrared protection cover is a cylinder-like structure; The length of said infrared protection cover is 54mm to 56mm; External diameter is 17mm to 18mm, and internal diameter is 15mm to 16mm, and wall thickness is 1.8mm to 2.2mm.
In the 7th optimal technical scheme provided by the invention, said infrared protection cover uses inorganic absorbing material to process; The inwall of said infrared protection cover is coated with nano-material coating.
In the 8th optimal technical scheme provided by the invention, said inorganic absorbing material is " NM type " inorganic material that the sky, Dalian microwave absorbing material Co., Ltd produces.
In the 9th optimal technical scheme provided by the invention, said nano-material coating is nano oxidized inferior nickel-silica material.
In the tenth optimal technical scheme provided by the invention, said infrared protection cover from the end vertically inwardly this section internal diameter of 3mm than the little 0.8mm of internal diameter of remainder; Said infrared protection cover is provided with installing retaining ring respectively apart from every end margin 1.5mm place.
In the more preferably technical scheme provided by the invention, said installing retaining ring is positioned on the infrared protection cover inwall, and height of projection is 0.3mm.
Provided by the invention second more preferably in the technical scheme, and said unidirectional infrared transmitter and said unidirectional infrared remote receiver are respectively arranged with the protective cover installed module that is used with said installing retaining ring.
The provided by the invention the 3rd more preferably in the technical scheme, and said protective cover installed module comprises that the line with said infrared emission head and said infrared receiving terminal is the torus 1,2 of axis.
The provided by the invention the 4th more preferably in the technical scheme, and an end of said torus 1,2 is fitted with said shell 1,2 respectively, and the other end is an opening; Said opening is tubaeform; The internal diameter of said opening is that 4-6mm, external diameter are that 16-20mm, length are 8-10mm.
The provided by the invention the 5th more preferably in the technical scheme, and said torus 1,2 is being respectively arranged with the spill bayonet socket that the degree of depth is 0.3mm on the outer wall of edge of opening 1.5mm.
The provided by the invention the 6th more preferably in the technical scheme, and said opening the 1, the 2nd is circular.
The provided by the invention the 7th more preferably in the technical scheme, and the inwall of said shell 1 and shell 2 is coated with electro-magnetic screen layer; Said micro-control unit 1,2 all uses the chip of model as LM3S9B96; Said infrared control chip 1,2 all uses the chip of model as DSR.IR248; Said infrared emission head and said infrared receiving terminal all use the chip of model as Vishay; Said USB chip uses the chip of model as USB20D.
The provided by the invention the 8th more preferably in the technical scheme, and said electro-magnetic screen layer is the Chain Link Fence that is coated with macromolecular material.
The provided by the invention the 9th more preferably in the technical scheme, and said memory is flash memory or hard disk.
With the prior art ratio; Provided by the invention 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 isolation fully of protocol layer, transport layer; The reflector that provides, receiver all be independently, realized the physical isolation of reception, transmitter; And a kind of protective cover that prevents that infrared waves from leaking is provided in the one-way data transmission equipment; Let infrared communication in the space that isolates fully, transmit; Blocked any possible signal leakage, thereby prevented extraneous monitoring and eavesdropping, improved safety of transmission data; Use special-purpose Infrared Transmission chip; For the condition that provides the foundation is controlled in the transmission that realizes higher level; And on this condition basis, realized the security control measure of higher level; Can be to the piecemeal that transmits and receive data, cut apart and manage, thereby improved reliability of data transmission, manageability and fail safe; The integrated control chip of high speed infrared that adopts, high speed infrared are received and dispatched head, all support the 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, only disposed the reception head, prevented that from hardware receiving equipment from sending the possibility of data, transmitter reception data for receiving equipment for transmitter; The reflector of one-way data transmission equipment is provided with local memory space and Computer Storage space; Can realize two kinds of different working patterns; The one, when two various network terminals are in same working region, can realize directly data one-way transmission from a network terminal to another network terminal; The 2nd, when two various network terminals during not at the same area; Then can be through with the data upload at 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, through 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; Have only 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 subsequent use interface mode; This interface mode can realize that receiving equipment is identified as USB common apparatus rather than memory device; Therefore, can on some forbids secure network and the computer of USB flash disk, USB CD-ROM drive, be correctly validated, thereby realize its data input function.Overcome existing equipment and discerned with 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 for being the application scheme of the infrared transceiver of interface with USB 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 sketch map of reception head with emitting head.
Embodiment
Like Fig. 6, shown in 7, a kind of based on infrared one-way data transmission equipment, it comprises: data transmission unit and Data Receiving unit; Said equipment comprises the one-way data transmission unit; Said data transmission unit, said one-way data transmission unit and said Data Receiving unit are connected through the USB shielded type cable successively.
Said data transmission unit and said Data Receiving unit all are the computer or the network terminal; Said one-way data transmission unit comprises interconnective unidirectional infrared transmitter and unidirectional infrared remote receiver.
Between said unidirectional infrared transmitter and said unidirectional infrared remote receiver, be provided with the infrared protection cover.
As shown in Figure 8, said infrared protection cover from the end vertically inwardly this section internal diameter of 3mm than the little 0.8mm of internal diameter of remainder; Said infrared protection cover is provided with installing retaining ring respectively apart from every end margin 1.5mm place.Said installing retaining ring is positioned on the infrared protection cover inwall, and height of projection is 0.3mm.Said unidirectional infrared transmitter and said unidirectional infrared remote receiver are respectively arranged with the protective cover installed module that is used with said installing retaining ring.Said protective cover installed module comprises that the line with said infrared emission head and said infrared receiving terminal is the torus 1,2 of axis.One end of said torus 1,2 is fitted with said shell 1,2 respectively, and the other end is an opening; Said opening is tubaeform; The internal diameter of said opening is that 4-6mm, external diameter are that 16-20mm, length are 8-10mm.Said torus 1,2 is being respectively arranged with the spill bayonet socket that the degree of depth is 0.3mm on the outer wall of edge of opening 1.5mm.Said opening the 1, the 2nd, circular.
As shown in Figure 4, said unidirectional infrared transmitter comprises firing button, USB chip, micro-control unit 1, infrared control chip 1, memory, infrared emission head and battery; Said firing button, said USB chip, said micro-control unit 1, said infrared control chip 1, said memory, said infrared emission head and said battery all are arranged in the shell 1; Said data transmission unit is connected through said USB shielded type cable with said USB chip; Said firing button is connected with said micro-control unit respectively with the USB chip; Said infrared control chip is connected with said micro-control unit, said memory and said infrared emission head respectively.
As shown in Figure 5, said unidirectional infrared remote receiver comprises USB chip, micro-control unit 2, infrared control chip 2 and the infrared receiving terminal that connects successively; Said USB chip is connected through said USB shielded type cable with said Data Receiving unit; Said USB chip, said micro-control unit 2, said infrared control chip 2 and said infrared receiving terminal are arranged in the shell 2.
The inboard of said shell 1 and shell 2 is provided with electro-magnetic screen layer; Said micro-control unit 1,2 all uses the chip of model as LM3S9B96; Said infrared control chip 1,2 all uses the chip of model as DSR.IR248; Said infrared emission head and said infrared receiving terminal all use the chip of model as Vishay; Said USB chip uses the chip of model as USB20D.
The inboard of said shell 1 and shell 2 is provided with electro-magnetic screen layer; Said electro-magnetic screen layer is the Chain Link Fence that is coated with macromolecular material.
Said micro-control unit 1 all uses the chip of model as LM3S9B96 with said micro-control unit 2.Said infrared control chip 1 all uses the chip of model as DSR.IR248 with said infrared control chip 2.Said memory is flash memory or hard disk.Said infrared emission head and said infrared receiving terminal all use the chip of model as Vishay.
As shown in Figure 9, be the external structure sketch map of reception head with 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, realize that the foundation of transmission channel need not to shake hands; Need not exchange agreement, realized the isolation fully 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 let infrared communication in the space that isolates fully, transmit, blocked any possible signal leakage, thereby prevented monitoring, eavesdropping, improved safety 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 on this condition basis, realized the security control measure of higher level-, cut apart and manage, thereby improved reliability, manageability, the fail safe of transmission the piecemeal that transmits and receive data.
The integrated control chip of high speed infrared that the present technique scheme is adopted, high speed infrared transmitting-receiving head; All support the 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 the reception head, prevented that from hardware receiving equipment from sending the possibility of data, transmitter reception data.
The receiver of this equipment is provided with local memory space and Computer Storage space; Can realize two kinds of different working patterns; The one, when two various network terminals are in same working region, can realize directly data one-way transmission from a network terminal to another network terminal; The 2nd, when two various network terminals during not at the same area; Then can be through with the data upload at 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 through 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 having only 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 subsequent use interface mode; This interface mode can realize that receiving equipment is identified as USB common apparatus rather than memory device; Therefore, can on some forbids secure network and the computer of USB flash disk, USB CD-ROM drive, be correctly validated, thereby realize its data input function.Overcome existing equipment and discerned with the USB flash disk mode on computers, thereby caused out of use problem on some secure network.
Encrypted system discerns and authentication on the refined net to be supported in.
Technical scheme provided by the present invention and product; Efficiently solve transmission safety of data problem between heterogeneous networks, the various computing machine; Realized the complete physical isolation of transmission; And the one-way of protocol layer, transport layer, high-speed data transmission is provided simultaneously, satisfy 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 to transmit 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 influencing normal transmission;
3) reduce even stop interference and the radiation of Infrared Transmission 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: but one be to use a kind of machining with strong absorption infrared waves inorganic material as the basic material of making protective cover (this equipment adopts the inorganic material-sky, Dalian microwave absorbing material Co., Ltd of a kind of being called " NM type " 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) of the thick high strength adsorbing close infrared light ripple of 0.5mm 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 specifically is that wave band is 880mm～900mm between 850mm～900mm, just the best service band of this nano material wave absorbing efficiency.
5) technology through 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 pipe material by adopting Dark grey, nano wave-absorption coating adopt 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 a protrusion 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 locking mutually.
4, the mounting structure corresponding with protective cover is on reflector, acceptor unit:
1) the casing outside is the center with the sending and receiving head, constructs a horn-type opening.
2) aforementioned this horn-type opening internal orifice (horn mouth osculum one end) diameter 5mm, collar extension diameter 18mm, depth 9mm.
3) the 3mm place has a ring shaped slot apart from the outside at horn mouth, apart from outer ledge 1.5mm place, has the spill bayonet socket of a 0.3mm in the groove width 1.2mm, this groove, and the terminal convex installing ring of this bayonet socket and protective cover 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 hold equipment and protective cover respectively with hand, be forced into slightly, 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 qualification to protection range of the present invention.Those skilled in the art can do various modifications, be equal to replacement or improvement under spirit of the present invention and principle inspiration.But these changes or modification are all in the protection range that application is awaited the reply.
Claims (20)
1. one kind based on infrared one-way data transmission equipment, and it comprises: data transmission unit and Data Receiving unit; It is characterized in that said equipment comprises the one-way data transmission unit; Said data transmission unit, said one-way data transmission unit and said Data Receiving unit are connected through the USB shielded type cable successively.
2. equipment according to claim 1 is characterized in that, said data transmission unit and said Data Receiving unit all are the computer or the network terminal.
3. equipment according to claim 1 is characterized in that, said one-way data transmission unit comprises unidirectional infrared transmitter and the unidirectional infrared remote receiver that receives its data.
4. equipment according to claim 3 is characterized in that, between said unidirectional infrared transmitter and said unidirectional infrared remote receiver, is provided with the infrared protection cover.
5. equipment according to claim 3 is characterized in that, said 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; Said data transmission unit is connected through said USB shielded type cable with said USB chip; Said firing button is connected with said micro-control unit respectively with the USB chip; Said infrared control chip is connected with said micro-control unit, said memory and said infrared emission head respectively.
6. equipment according to claim 3 is characterized in that, said unidirectional infrared remote receiver comprises USB chip, micro-control unit 2, infrared control chip 2 and the infrared receiving terminal that connects successively; Said USB chip is connected through said USB shielded type cable with said Data Receiving unit; Said USB chip, said micro-control unit 2, said infrared control chip 2 and said infrared receiving terminal are arranged in the shell 2.
7. equipment according to claim 3 is characterized in that, said infrared protection cover is a cylinder-like structure; The length of said infrared protection cover is 54mm to 56mm; External diameter is 17mm to 18mm, and internal diameter is 15mm to 16mm, and wall thickness is 1.8mm to 2.2mm.
8. according to claim 3,7 described equipment, it is characterized in that said infrared protection cover uses inorganic absorbing material to process; The inwall of said infrared protection cover is coated with nano-material coating.
9. equipment according to claim 8 is characterized in that, said inorganic absorbing material is " NM type " inorganic material that the sky, Dalian microwave absorbing material Co., Ltd produces.
10. equipment according to claim 8 is characterized in that, said nano-material coating is nano oxidized inferior nickel-silica material.
11. equipment according to claim 8 is characterized in that, said infrared protection cover from the end vertically inwardly this section internal diameter of 3mm than the little 0.8mm of internal diameter of remainder; Said infrared protection cover is provided with installing retaining ring respectively apart from every end margin 1.5mm place.
12. equipment according to claim 11 is characterized in that, said installing retaining ring is positioned on the infrared protection cover inwall, and height of projection is 0.3mm.
13. equipment according to claim 8 is characterized in that, said unidirectional infrared transmitter and said unidirectional infrared remote receiver are respectively arranged with the protective cover installed module that is used with said installing retaining ring.
14. equipment according to claim 13 is characterized in that, said protective cover installed module comprises that the line with said infrared emission head and said infrared receiving terminal is the torus 1,2 of axis.
15. equipment according to claim 14 is characterized in that, an end of said torus 1,2 is fitted with said shell 1,2 respectively, and the other end is an opening; Said opening is tubaeform; The internal diameter of said opening is that 4-6mm, external diameter are that 16-20mm, length are 8-10mm.
16. equipment according to claim 15 is characterized in that, said torus 1,2 is being respectively arranged with the spill bayonet socket that the degree of depth is 0.3mm on the outer wall of edge of opening 1.5mm.
17. equipment according to claim 15 is characterized in that, said opening the 1, the 2nd is circular.
18., it is characterized in that the inwall of said shell 1 and shell 2 is coated with electro-magnetic screen layer according to claim 5,6 described equipment; Said micro-control unit 1,2 all uses the chip of model as LM3S9B96; Said infrared control chip 1,2 all uses the chip of model as DSR.IR248; Said infrared emission head and said infrared receiving terminal all use the chip of model as Vishay; Said USB chip uses the chip of model as USB20D.
19. equipment according to claim 18 is characterized in that, said electro-magnetic screen layer is the Chain Link Fence that is coated with macromolecular material.
20. equipment according to claim 5 is characterized in that, said memory is flash memory or hard disk.
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| CN201210062725.4A CN102624445B (en) | 2012-03-12 | 2012-03-12 | Infrared-based unidirectional data transmission equipment |
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| CN201210062725.4A CN102624445B (en) | 2012-03-12 | 2012-03-12 | Infrared-based unidirectional data transmission equipment |
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| CN102624445B CN102624445B (en) | 2014-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114372014A (en) * | 2022-01-13 | 2022-04-19 | 博学宽行(成都)科技有限公司 | Physical isolation data transmission method based on infrared data transmission |
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| CN202034975U (en) * | 2011-04-22 | 2011-11-09 | 林力 | Wireless encryption transmission on-board diagnostic (OBD) port data device |
| CN202696607U (en) * | 2012-03-12 | 2013-01-23 | 成都龙冠科技实业有限公司 | Infrared-based unidirectional data transmission equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114372014A (en) * | 2022-01-13 | 2022-04-19 | 博学宽行(成都)科技有限公司 | Physical isolation data transmission method based on infrared data transmission |
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