CN2896712Y - Network card with distance-measuring function of acoustic-wave transmission address orthogonal coding - Google Patents
Network card with distance-measuring function of acoustic-wave transmission address orthogonal coding Download PDFInfo
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- CN2896712Y CN2896712Y CN 200520027315 CN200520027315U CN2896712Y CN 2896712 Y CN2896712 Y CN 2896712Y CN 200520027315 CN200520027315 CN 200520027315 CN 200520027315 U CN200520027315 U CN 200520027315U CN 2896712 Y CN2896712 Y CN 2896712Y
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Abstract
A sound wave transmission address orthogonal code network card with distance measurement function comprises signal receiving and converting circuit, singlechip system monitoring circuit, and pulse signal delivery circuit, information processing system circuit, manual consultation circuit, signal parameter display circuit, signal sending circuit and power supply system. The LAN comprising this network card take sound wave as transmission media, uses orthogonal coding as address codes, identifies the former codes to determine whether the calling is sent out by middle control exchanger or other network cards and identifies the orthogonal wave forms to determine whether this calling is for this network card. The model utility has the following advantages: 1. avoid electromagnetic screening and disturbance; 2. reduce communication impacts; 3. record and compute the intervals between the calling and answering of network card in the LAN so as to accomplish distance measurement.
Description
(1) technical field:
The utility model relates to a kind of computer interconnect device, and particularly a kind of acoustic wave transmission address orthogonal coding has the network interface card and the network interface card information processing method thereof of distance measurement function.
(2) background technology:
At present, the transmission medium of network interface card belongs to wired and wireless two kinds basically.The transmission medium of wireless network card is an electromagnetic wave.And the NIC address coding is varied, and for example the network interface card of local area network (LAN) adopts 48 bit coded systems in the Ethernet, and allocation of communications adopts the carrier sense detection mode.Above-mentioned similar network interface card has following weak point: 1, in some particular surroundings, for example electromagnetic shielding is seriously regional, underground mine working region etc., this network interface card cisco unity malfunction; 2, communication collision unavoidably appears in carrier sense and detection allocation of communications mode.
(3) summary of the invention:
The purpose of this utility model is to design the network interface card that a kind of acoustic wave transmission address orthogonal coding has distance measurement function, it is to use sound wave as the interconnected network interface card of using of the computer of transmission medium, in the local area network (LAN) of forming by this network interface card, use the orthogonal coding mode, can reduce the communication collision phenomenon, can avoid electromagnetic shielding and interference, be a kind of novelty and practical new network adapter.
The technical solution of the utility model: a kind of acoustic wave transmission address orthogonal coding has the network interface card of distance measurement function, it is characterized in that it is to receive change-over circuit by signal, the Single Chip Microcomputer (SCM) system supervisory circuit, pulse signal provides circuit, the information processing system circuit, the manual queries circuit, the signal parameter display circuit, signal sending circuit and electric power system constitute, said signal receives change-over circuit link information treatment system circuit, said Single Chip Microcomputer (SCM) system supervisory circuit connects the signal parameter display circuit, signal sending circuit and manual queries circuit, said pulse signal provides circuit link information treatment system circuit, said information processing system circuit connects signal parameter display circuit and signal sending circuit and manual queries circuit, said manual queries circuit link information treatment system circuit and signal parameter display circuit.
Above-mentioned said signal receives change-over circuit and is made of acoustic wave transducer configuration shaping capacitance.
Above-mentioned said Single Chip Microcomputer (SCM) system supervisory circuit is made of the IMP813L chip.
Above-mentioned said pulse signal provides circuit to be made of crystal oscillator configuration resonant capacitance.
Above-mentioned said information processing system circuit is made of the AT89C4051 monolithic processor.
Above-mentioned said manual queries circuit is made of by control AT89C4051 monolithic processor query key S1, S2, S3, S4.
Above-mentioned said signal parameter display circuit is made of charactron, biasing resistance and triode, and biasing resistance and triode logarithmic code tube power amplify.
Above-mentioned said signal sending circuit is made of linear operational amplifier and acoustic wave transducer configuration shaping capacitance.
Above-mentioned said electric power system circuit is made of common power and power filtering capacitor.
Superiority of the present utility model is: 1, with sound wave as the interconnected network interface card of using of the computer of transmission medium, can avoid electromagnetic shielding and interference; 2, in the local area network (LAN) of being made up of this network interface card, geocoding adopts the orthogonal coding mode, can reduce the communication collision phenomenon; 3, stick into capable information processing by Home Network, can write down and calculate, can measure the mutual air line distance of network interface card in the local area network (LAN), finish distance measurement function the calling between local Webweb card and the time interval of replying.
(4) description of drawings:
Accompanying drawing 1 has the schematic block circuit diagram of the network interface card of distance measurement function for the related a kind of acoustic wave transmission address orthogonal coding of the utility model.
Accompanying drawing 2 has the integrated circuit structural representation of the network interface card of distance measurement function for the related a kind of acoustic wave transmission address orthogonal coding of the utility model.
Accompanying drawing 3 has the information process flow chart of the network interface card of distance measurement function for the related a kind of acoustic wave transmission address orthogonal coding of the utility model.
Accompanying drawing 4 has the working state schematic representation (A is middle controlled switching system and telephone set, and a, b, c, d are the network interface card node) of the network interface card of distance measurement function for the related a kind of acoustic wave transmission address orthogonal coding of the utility model.
Accompanying drawing 5 has the work calling wave font code identification schematic diagram of the network interface card of distance measurement function for the related a kind of acoustic wave transmission address orthogonal coding of the utility model.
Accompanying drawing 6 has the work calling wave font code structural representation of the network interface card of distance measurement function for the related a kind of acoustic wave transmission address orthogonal coding of the utility model.
(5) embodiment:
Embodiment: the network interface card (see figure 1) that a kind of acoustic wave transmission address orthogonal coding has distance measurement function comprises that signal reception change-over circuit, Single Chip Microcomputer (SCM) system supervisory circuit, pulse signal provide circuit, information processing system circuit, manual queries circuit, signal parameter display circuit, signal sending circuit and electric power system signal to receive change-over circuit link information treatment system circuit; It is characterized in that the Single Chip Microcomputer (SCM) system supervisory circuit connects signal parameter display circuit, signal sending circuit and manual queries circuit, above-mentioned said pulse signal provides circuit link information treatment system circuit, above-mentioned said information processing system circuit signal parameter display circuit and signal sending circuit and manual queries circuit, above-mentioned said manual queries circuit link information treatment system circuit and signal parameter display circuit.
Above-mentioned said signal receives change-over circuit and is made of acoustic wave transducer configuration shaping capacitance, and T1 is the conventional acoustic wave transducer, is used to receive acoustic signals.C4 is the shaping capacitance of T1.Be used to cooperate transducer T1 to receive acoustic signals.
Above-mentioned said Single Chip Microcomputer (SCM) system supervisory circuit constitutes (see figure 2) by the IMP813L chip, and Single Chip Microcomputer (SCM) system supervisory circuit U2 is used to guarantee the single-chip microcomputer operate as normal, and such product type is more, and the IMP813L of USA I P company is adopted in the concrete enforcement of this patent.
Above-mentioned said pulse signal provides circuit to constitute (see figure 2) by crystal oscillator configuration resonant capacitance, crystal oscillator Y1, resonant capacitance C5, C6, is common commercially available prod, is used to single-chip microcomputer that clock signal is provided.
Above-mentioned said information processing system circuit constitutes (see figure 2) by the AT89C4051 monolithic processor, and common monolithic processor U1 claims single-chip microcomputer again, and such product type is a lot, and AT89C4051 is adopted in the concrete enforcement of this patent.Be used to handle the various information of network interface card work.This patent NIC address adopts the orthogonal code coded system, and this is solidificated among the ROM of U1 through burning before being coded in network interface card work, and the network interface card duration of work can be by routine call.
Above-mentioned said manual queries circuit constitutes (see figure 2) by query key S1, S2, S3, S4 by control AT89C4051 monolithic processor, and query key S1, S2, S3, S4 are common key-press, are used to inquire about the network interface card parameter
Above-mentioned said signal parameter display circuit is made of charactron, biasing resistance and triode, and biasing resistance and triode logarithmic code tube power amplify (see figure 2), and Q, Q2 are common triodes, are used to drive LG1 charactron 1, LG2 charactron 2.R1, R2 are the biasing resistances of Q1, Q2, for Q1, Q2 provide the working point.LG1 charactron 1, LG2 charactron 2 are common charactrons, are used to show the network interface card parameter
Above-mentioned said signal sending circuit constitutes (see figure 2) by linear operational amplifier and acoustic wave transducer configuration shaping capacitance, and common linear operational amplifier U3 is used to promote transducer T2 output acoustic signals, and T2 is the conventional acoustic wave transducer, the emission acoustic signals.
Above-mentioned said electric power system circuit constitutes (see figure 2) by common power and power filtering capacitor, J1, and the common power socket, C1, C2, C3 are power filtering capacitor, can guarantee the power supply steady operation.
The course of work of the present utility model and operation principle are (seeing Fig. 3-6):
1. the course of work of this network interface card is:
(1) begin energising, initialization data reads this machine orthogonal code address from single-chip microcomputer ROM;
(2) monitored call signal;
(3) lead code is discerned after receiving call signal, determined that middle controlled switching system sends to call out or other network interface cards send calling;
(4) realize the time synchronized of this network interface card and call signal by lead code in the call signal;
(5) the orthogonal code waveform is discerned, and compared, determine whether it is calling, if not then continuing the monitored call signal to this network interface card with self orthogonal code;
(6) whether middle controlled switching system sends this signal, if not sending answer signal to the network interface card that sends calling;
(7) send to middle controlled switching system and reply, please in controlled switching system wait for;
(8) send calling to other network interface cards;
Whether (9) receive and reply, (9-1) receive and reply, then calculate and receive the code character time, calculate distance, storage (9-2) is confiscated and is replied, and then searches next NIC address;
(10) whether be last NIC address, (10-1) if not, then continue to send calling to other network interface cards, (10-2) if, other network interface card orthogonal codes that then will receive and calculate distance and send to middle controlled switching system;
(11) can inquire about this machine canned data by actuation of keys.
2. the operation principle of this network interface card is:
The said calling sign indicating number of this case has two kinds, and controlled switching system all is the callings to certain network interface card in netting to the calling of network interface card and the calling between the network interface card in being divided into; Call out sign indicating number waveform (see figure 6) and contain lead code waveform, orthogonal code waveform, terminating code waveform three parts; (i) controlled switching system is distinguished (see figure 5) to the calling of network interface card or the calling between the network interface card according to the lead code of calling out in the sign indicating number in the identification, and waveform I and the time span of waveform II are with the waveform number is identical end to end in the lead code; First waveform that in a single day network interface card receives in above-mentioned each lead code promptly picks up counting, after waiting to receive whole lead code waveforms, the call signal of setting by single-chip microcomputer that program can be with time span and the waveform number is identical end to end realizes synchronously, with the difference of middle waveform number, finish identifying purpose by single-chip microcomputer calculating; The calling of (ii) discerning which network interface card between the network interface card is according to the orthogonal code waveform that follows the lead code waveform closely, orthogonal code waveform and the mutual corresponding (see figure 6) of orthogonal code, orthogonal code is the NIC address coding, because of " with calculate " of orthogonal code between each network interface card is zero, " with calculating " of network interface card self orthogonal code is non-vanishing, guarantee that each node address coding does not repeat mutually, network interface card is after receiving this waveform, by with lead code synchronously, by the orthogonal code in the call signal, finishing identification is the calling of which network interface card again.
If 4 different network interface card nodes are a, b, c, d, each node respectively has the quadrature address code:
| a： | -1 | -1 | -1 | 1 | 1 | -1 | 1 | 1 |
| b： | -1 | -1 | 1 | -1 | 1 | 1 | 1 | -1 |
| c： | -1 | 1 | -1 | 1 | 1 | 1 | -1 | -1 |
| d： | -1 | 1 | -1 | -1 | -1 | -1 | -1 | 1 |
Above-mentioned orthogonal code will the program in U1 be carried out " with computing ", is calculated as follows:
The mutual computing of each network interface card orthogonal code:
| a： | -1 | -1 | -1 | 1 | 1 | -1 | 1 | 1 | |
| b： | -1 | -1 | 1 | -1 | 1 | 1 | -1 | ||
| 1 | 1 | -1 | -1 | 1 | -1 | 1 | -1 | Be summed to 0 |
| a： | -1 | -1 | -1 | 1 | 1 | -1 | 1 | 1 | |
| c： | -1 | 1 | -1 | 1 | 1 | 1 | -1 | -1 | |
| 1 | -1 | 1 | 1 | 1 | -1 | -1 | -1 | Be summed to 0 |
| a： | -1 | -1 | -1 | 1 | 1 | -1 | 1 | 1 | |
| d： | -1 | 1 | -1 | -1 | -1 | -1 | -1 | 1 | |
| 1 | -1 | 1 | -1 | -1 | 1 | -1 | 1 | Be summed to 0 |
Network interface card orthogonal code self computing (with a node is example, other network interface card equifinalities)
| A： | -1 | -1 | -1 | 1 | 1 | -1 | 1 | 1 | |
| A： | -1 | -1 | -1 | 1 | 1 | -1 | 1 | 1 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | Summation is not 0 |
Aforementioned calculation result shows that this case method finished the identification to the different node network interface card.
Claims (9)
1, a kind of acoustic wave transmission address orthogonal coding has the network interface card of distance measurement function, it is characterized in that it is to receive change-over circuit by signal, the Single Chip Microcomputer (SCM) system supervisory circuit, pulse signal provides circuit, the information processing system circuit, the manual queries circuit, the signal parameter display circuit, signal sending circuit and electric power system constitute, said signal receives change-over circuit link information treatment system circuit, said Single Chip Microcomputer (SCM) system supervisory circuit connects the signal parameter display circuit, signal sending circuit and manual queries circuit, said pulse signal provides circuit link information treatment system circuit, said information processing system circuit connects signal parameter display circuit and signal sending circuit and manual queries circuit, said manual queries circuit link information treatment system circuit and signal parameter display circuit.
2, the network interface card that has distance measurement function according to the said a kind of acoustic wave transmission address orthogonal coding of claim 1 is characterized in that said signal receives change-over circuit and is made of acoustic wave transducer configuration shaping capacitance.
3, the network interface card that has distance measurement function according to the said a kind of acoustic wave transmission address orthogonal coding of claim 1 is characterized in that said Single Chip Microcomputer (SCM) system supervisory circuit is made of the IMP813L chip.
4, the network interface card that has distance measurement function according to the said a kind of acoustic wave transmission address orthogonal coding of claim 1 is characterized in that said pulse signal provides circuit to be made of crystal oscillator configuration resonant capacitance.
5, the network interface card that has distance measurement function according to the said a kind of acoustic wave transmission address orthogonal coding of claim 1 is characterized in that said information processing system circuit is made of the AT89C4051 monolithic processor.
6, the network interface card that has distance measurement function according to the said a kind of acoustic wave transmission address orthogonal coding of claim 1 is characterized in that said manual queries circuit is made of by control AT89C4051 monolithic processor query key S1, S2, S3, S4.
7, the network interface card that has distance measurement function according to the said a kind of acoustic wave transmission address orthogonal coding of claim 1, it is characterized in that said signal parameter display circuit is made of charactron, biasing resistance and triode, biasing resistance and triode logarithmic code tube power amplify.
8, the network interface card that has distance measurement function according to the said a kind of acoustic wave transmission address orthogonal coding of claim 1 is characterized in that said signal sending circuit is made of linear operational amplifier and acoustic wave transducer configuration shaping capacitance.
9, the network interface card that has distance measurement function according to the said a kind of acoustic wave transmission address orthogonal coding of claim 1 is characterized in that said electric power system circuit is made of common power and power filtering capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520027315 CN2896712Y (en) | 2005-09-12 | 2005-09-12 | Network card with distance-measuring function of acoustic-wave transmission address orthogonal coding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520027315 CN2896712Y (en) | 2005-09-12 | 2005-09-12 | Network card with distance-measuring function of acoustic-wave transmission address orthogonal coding |
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| CN2896712Y true CN2896712Y (en) | 2007-05-02 |
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| CN 200520027315 Expired - Fee Related CN2896712Y (en) | 2005-09-12 | 2005-09-12 | Network card with distance-measuring function of acoustic-wave transmission address orthogonal coding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741520B (en) * | 2005-09-12 | 2010-04-14 | 天津理工大学 | Network card of acoustic wave transmission address orthogonal coding with range measuring function and network card information processing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741520B (en) * | 2005-09-12 | 2010-04-14 | 天津理工大学 | Network card of acoustic wave transmission address orthogonal coding with range measuring function and network card information processing method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |