WO2006035491A1 - 通信装置 - Google Patents
通信装置 Download PDFInfo
- Publication number
- WO2006035491A1 WO2006035491A1 PCT/JP2004/014111 JP2004014111W WO2006035491A1 WO 2006035491 A1 WO2006035491 A1 WO 2006035491A1 JP 2004014111 W JP2004014111 W JP 2004014111W WO 2006035491 A1 WO2006035491 A1 WO 2006035491A1
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- WO
- WIPO (PCT)
- Prior art keywords
- communication
- site
- unit
- conductor
- communication device
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2581—Multimode transmission
Definitions
- the present invention is a sheet-like communication device in which a plurality of communication elements are embedded, and the plurality of communication elements communicate with communication elements in the vicinity thereof to form a network.
- the present invention relates to a communication device that transmits information.
- Patent Document 1 Japanese Patent Laid-Open No. 2004-007448
- each communication element is arranged at the apex of a lattice-like, triangular, or honeycomb-like figure on the surface of the sheet-like body.
- Each communication element communicates only with other communication elements arranged in the vicinity by utilizing the fact that the potential change generated by the communication element is strong in the vicinity and attenuated and propagated far away.
- the present invention meets such a demand and is a sheet-like communication device in which a plurality of communication elements are embedded, and the plurality of communication elements communicate with communication elements in the vicinity of the network to communicate with the network. It is an object of the present invention to provide a communication device that transmits information by forming a network.
- a communication device includes a ground layer portion, a plurality of site portions, and a plurality of communication element portions, and is configured as follows.
- the ground layer portion is disposed on a substantially plane and is a good conductor.
- the plurality of site portions are arranged substantially parallel to the ground layer portion and are good conductors.
- the plurality of communication element units are a plurality of communication element units connected to any two of the plurality of site units and the ground layer unit, each of which is the two site units By changing the potential of the ground layer to the other ground layer, it communicates with other communication elements connected to the two site portions.
- any two site portions connected to each of the plurality of communication element portions are coupled by an inductance element, and the capacitance between the site portion and the ground layer portion is defined as C, communication.
- the communication frequency used for is ⁇ / (2 ⁇ ) and the coupling inductance of the inductance element is L,
- each of the plurality of site portions and the ground layer portion is configured to be a good conductor in a plate shape, a foil shape, a line shape, a net shape, or a combination thereof. Can do.
- a sheet-like insulator is disposed between each of the plurality of site portions and the ground layer portion, and the plurality of communication element portions include the sheet-like insulator. It is possible to form a structure so as to penetrate through the hole provided in and connect to any two of the plurality of site portions and the ground layer portion.
- the communication device of the present invention may further include a sensor element unit and may be configured as follows.
- the sensor element unit is connected to any one of the plurality of site units and the ground layer unit, and observes a predetermined target.
- the communication element unit connected to the sensor element unit among the plurality of site units detects a change in potential of the site unit with respect to the ground layer unit, and detects this change. It communicates with another communication element unit as an observation value of a predetermined target.
- the communication device of the present invention further includes a connector unit, and is configured as follows.
- the connector portion connects an external device to any one of the plurality of site portions and the ground layer portion.
- the external device connected to the connector unit and the communication element unit connected to the site unit connected to the connector unit communicate with each other by a change in potential of the site unit.
- a sheet-like communication device in which a plurality of communication elements are embedded, and the plurality of communication elements communicate with communication elements in the vicinity of the communication device to form a network. Can be provided.
- FIG. 1 is a schematic diagram showing a schematic configuration of a communication apparatus according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram showing a schematic configuration of a communication apparatus according to an embodiment of the present invention.
- FIG. 3 is an explanatory diagram showing a schematic configuration of the inductor element according to the present embodiment.
- FIG. 5 is an explanatory diagram showing a schematic configuration of a communication element in the present embodiment.
- FIG. 6 is a circuit diagram showing a schematic configuration of a transmission circuit of a communication element in the present embodiment.
- FIG. 7 is a circuit diagram showing a schematic configuration of a receiving circuit of a communication element in the present embodiment.
- FIG. 8 is an explanatory diagram showing a state of a communication network in the present embodiment. Explanation of symbols
- FIGS. 1 and 2 are schematic views showing a schematic configuration of a communication apparatus according to one embodiment of the present invention.
- FIG. 1 is a plan view and
- FIG. 2 is an enlarged cross-sectional view.
- a description will be given with reference to FIG.
- the communication device 101 is based on a sheet-like insulator 102, and a plurality of conductor sites 103 are pasted on one side thereof, and a sheet-like conductor having substantially the same shape as the insulator 102 is provided on the opposite side.
- the body 104 is pasted.
- the sheet-like conductor 104 covers the region facing the conductor site 103 with the insulator 102 interposed therebetween.
- each conductor site 103 and the sheet-like conductor 104 form a kind of capacitor, and the sheet-like conductor 104 functions as a ground (earth, reference potential).
- a wire-like or mesh-like conductor can be used, for example, an automobile body can be used.
- a wire-like or mesh-like conductor may be used in addition to a foil-like plate-like conductor.
- the respective conductor sites 103 have a substantially square shape and are arranged in a grid at regular intervals.
- the conductor sites 103 are connected in parallel by the communication element 105 and the inductance element 106.
- Each communication element 105 is also connected to a sheet-like conductor 104.
- the communication element 105 and the inductance element 106 are collectively referred to as a communication element unit 109.
- the communication element 105 and the inductance element 106 may be integrally formed in the same integrated circuit.
- a communication element 105 can be reached from any communication element 105 via another communication element 105 and the conductor site 103.
- the two conductor sites 103 to which each communication element 105 is connected are to maintain a certain potential in a state where communication is not performed.
- Each communication element 105 uses the potential difference between the conductor site 103 and the sheet-like conductor 104 as an operating power source.
- the resistance of the inductance element 106 is sufficiently small in direct current, power can be constantly supplied to the communication element.
- Each communication element 105 generates a signal by changing the potential with respect to each sheet-like conductor 104 of the two conductor sites 103 connected thereto.
- Each conductor site 103 and the sheet-like conductor 104 are good conductors facing each other with the insulator 102 interposed therebetween, and thus form a so-called capacitor.
- C be the capacitance of this capacitor.
- the capacitance of the capacitor configured as a whole that is, the capacitance between the conductor site 103 and the sheet-like conductor 104 is C.
- the conductor site 103 is sandwiched between two sheet-like conductors 104 from above and below with the insulator 102 interposed therebetween, and both of them are set to the ground potential, so that electromagnetic shielding is more completely performed. It is also good. In that case, the two layers of sheet conductor and conductor site 10
- an inductance element 106 connects between two conductor sites 103 connected to each communication element. Let the coupling inductance of the inductance element 106 be.
- the communication frequency band used for communication is ⁇ / (2 ⁇ ).
- the conductor Other communication elements 105 connected to site 103 can sense this AC signal, This AC signal hardly propagates to other conductor sites 103 adjacent to the conductor site 103.
- a communication element 105 connected to one conductor site 103 can transmit a signal only to another communication element 105 connected to the same conductor site 103. Make up.
- the present communication device 101 is configured in a sheet shape as described above, the outside of the conductor site 103 and the sheet-like conductor 104 and the whole are covered with an insulator (not shown). It can be handled like cloth or paper. Therefore, some degree of bending is possible. Therefore, it can be incorporated into various electric appliances, etc., and can be affixed to the floor, wall, or ceiling of a house, or incorporated into clothing.
- the conductor site 103 for example, a linear shape (electric wire or the like) made of a good conductor can be adopted. This is because there is no change in the point of forming the capacitor as described above.
- the sensor element 107 observes the temperature, pressure, etc. at that point of the communication device 101, and changes the potential of the conductor site 103 connected to itself to the sheet-like conductor 104 according to the observed value. Send value.
- the communication element 105 connected to the conductor site 103 to which the sensor element 107 is connected receives this observation value and relays it to the other communication element 105, so that various observation values can be obtained. It can be propagated.
- FIG. 3 is an explanatory diagram showing a schematic configuration of the inductance element 106.
- the inductance element 106 is configured by a single inductor (coil) 201 as shown in Fig. (A), or includes an inductor 201 and a resistor 202 as shown in Fig. (B). It is configured by connecting in parallel.
- a connector unit 110 for connecting the communication device 101 to various external devices is also arranged.
- FIG. 4 is an explanatory view showing a schematic shape of the connector part 110.
- 4 (a) is an external view of a part of the connector part 110
- FIG. 4 (b) is a cross-sectional view of a part of the connector part 110.
- FIG. 4 (a) is an external view of a part of the connector part 110
- FIG. 4 (b) is a cross-sectional view of a part of the connector part 110.
- the connector part 110 extends from the lower surface of the sheet-like conductor 104 to above the conductor site 103.
- a hole is provided so as to be curved, and this is a projection.
- this is a projection.
- it is shaped like a hole drilled in a metal plate with a cone.
- the electrode 401 of the external device 400 has a cap shape that covers this curvature, and is directly connected to the conductor site 103.
- the electrode 402 on the external device side is directly connected to the inside of the protrusion of the sheet-like conductor 104.
- the contact point between the electrode 401 and the electrode 402 is such that the inner and outer force conductor sites 103 and the sheet-like conductor 104 are sandwiched by the panel, thereby ensuring connection.
- a communication element unit 109 is connected to the conductor site 103 of the connector unit 110, and communication can be performed with another communication element unit 109 via the adjacent conductor site 103.
- the size of the connector portion 110 is not necessarily the same as that of the conductor site 103, and a connector provided with a large number of such protrusions may be used.
- connection between the communication element 105 and the communication device 101 and the external device may be made by physical contact using various connectors, or the external device may be covered with an insulator.
- the electrode may be provided by capacitively coupling the conductor site 103 and the electrode by providing a pole and making this face the conductor site 103.
- an optical sensor or a light emitter is prepared for the communication element 105, optical coupling can be performed and various kinds of light processing can be performed. Further, if an actuator or the like is prepared for the communication element 105, the communication device 101 can be used as various power sources.
- FIG. 5 is an explanatory diagram showing a schematic configuration of the communication element in the present embodiment. Hereinafter, description will be given with reference to this figure.
- the communication element 105 includes a terminal 501 connected to one conductor site 103, a terminal 502 connected to the other conductor site 103, a resistor 503, a diode 504, a capacitor 505, A transmission circuit 506, a reception circuit 507, a control circuit 508, and a terminal 509 connected to the ground layer are provided.
- the capacitor 505 is charged through a resistor 503 and a diode 504.
- the diode 504 enters a state where current flows when the power supply potential VDD in the communication element 105 falls below the inter-terminal voltage OUT, and is charged quickly. As long as OUT is VDD, the diode 504 is in a high impedance state, so that transmission of the signal by the transmission circuit 506 is not hindered. Operating power is supplied from the capacitor 505 to the transmission circuit 506, the reception circuit 507, and the control circuit 508.
- control circuit 508 various information processing devices such as a more general logic circuit and a further small computer can be employed.
- the control circuit 508 controls the reception circuit 507 and the transmission circuit 506 to communicate with the adjacent communication element 105 to form a network.
- the technique disclosed in the above [Patent Document 1] can be applied, and the technique described later can be adopted.
- FIG. 6 is a circuit diagram showing a schematic configuration of the transmission circuit of the communication element in the present embodiment.
- the transmission circuit 506 includes a pMOS transistor 601, a diode 602, and nM.
- An OS transistor 603 is provided.
- the control by the control circuit 508 is performed by changing the gate voltages of the pMOS transistor 601 and the nMOS transistor 603.
- the gate of the nMOS transistor 603 is set to the ground (VSS) potential in the chip, and the gate of the pMOS transistor 601 is set to the VDD potential.
- the impedance between the source and the drain is sufficiently high, and OUTn is almost equal to the VDD potential.
- a diode 602 sandwiched between the nMOS transistor 603 and the pMOS transistor 601 is inserted to adjust the amplitude of the output voltage. If the two are short-circuited without providing the diode 602, the H level of OUTn becomes the power supply potential and the L level becomes the ground potential in the chip. However, if the diode 602 is inserted, its forward voltage drop Therefore, the L level potential becomes higher and power consumption can be saved.
- FIG. 7 is a circuit diagram showing a schematic configuration of the receiving circuit of the communication element in the present embodiment.
- the receiving circuit 507 includes a resistor (rl) 701, a resistor (r2) 702, and a comparator 70.
- the receiving circuit 507 also receives the INn capacitor depending on the voltage dividing ratio of the resistor 701 and the resistor 702. Set the threshold value for whether the received potential change is H or L.
- the input impedance of the comparator 703 is made sufficiently larger than the impedance l / (C co) due to the capacitance between the conductor site 103 and the sheet-like conductor 104. As a result, even if the receiving circuit 507 is present, the signal voltage can be set so as not to change.
- any communication protocol can be adopted in addition to the following description.
- a certain conductor site 103 and a communication element unit 109 connected thereto constitute a kind of local area network, and each communication element unit 109 functions as a bridge or a firewall connecting the local area networks.
- Existing communication technology can be applied.
- various techniques of dynamic address assignment can be applied to communication with an external device connected via the connector unit 110.
- this communication method is not limited to the communication device of the above embodiment.
- a communication device (corresponding to the communication element 109) is connected to two buses (each corresponding to the conductor site 103).
- the present invention can also be applied to a case where a communication network is configured as a whole, and such an aspect is also included in the scope of the present invention.
- FIG. 8 is a schematic diagram showing a schematic configuration of the communication network of the present embodiment.
- Figure 8 (a) shows one unit of the communication network.
- Figure 8 (b) shows the overall communication network.
- a description will be given with reference to FIG.
- One unit 800 of the communication network is arranged in a two-dimensional manner to form a communication network.
- This one unit 800 includes a nose 801 and one or more communication devices 802.
- the bus 801 corresponds to the conductor site 103 in the above form
- the communication device 802 corresponds to the communication element 109 and the sensor element 107 in the above form.
- Each communication device 802 connected to one bus 801 is given a unique number as an in-bus ID (iDentifier). In this figure (a), the numbers 1 to 4 are given. [0081]
- the communication device 802 is coupled to at most two buses, and a suitable route in the two-dimensional plane is selected for any other communication device 802. A method for transmitting a signal will be specifically described.
- token control is performed in order to prevent packet collision within the same nose 801. That is, each communication device 802 cannot spontaneously transmit a signal. A signal can be output only if it has only one token in the same bus 801.
- Signals are output in units of packets, and packets and tokens output to a certain bus 801 can be detected by all the communication devices 802 connected to the bus 801. Therefore, the communication device 802 looks at the destination of the detected packet or the like and determines whether or not to receive it.
- packets and tokens are output in units of a predetermined time T.
- the communication device 802 in a certain bus 801 communicates with a kind of synchronization.
- Data representing a token uses a code that is distinguished from data to be transmitted (normal data).
- a token control method As a token control method,
- the token passive method is a method in which one token is regularly circulated in a fixed direction between communication devices 802 within the same bus 801.
- the token includes the ID of the communication device that should receive the token as the destination.
- the communication device 802 When the communication device 802 receives a token addressed to itself, the communication device 802 performs the following processing.
- the direction of movement of the token should be cyclic according to rules that have been determined.
- bus ID it should be as follows: ⁇ ⁇ 1 ⁇ 2 ⁇ 3 ⁇ 4 ⁇ 1 ⁇ ....
- Each communication device 802 is connected to one or more buses 801. When connected to a plurality of buses 801, each communication device 802 performs the above operation independently for each bus.
- An appropriate priority may be determined between the communication devices 802, but it is considered that the smaller the priority number, the higher the priority.
- communication apparatus 802 detects a token that is not addressed to itself, communication apparatus 802 performs the following operation.
- the token addressed to its next communication device 802 is output to the bus 801. Let this destination be n.
- each communication device 802 performs the following operation.
- tokens are managed collectively. That is, one communication device 802 is selected from the communication devices 802 connected to the same node 801, and the authority to collectively manage tokens is given to this. Hereinafter, it will be referred to as “management communication device”.
- the management communication device sequentially outputs tokens addressed to other communication devices 802 in the bus 801 to the bus 801.
- the communication device 802 that detects the token addressed to itself starts transmission if there is a packet to be transmitted, and outputs a "transmission completion notification" to the management communication device to the bus 801 after transmission is completed. .
- the management communication device outputs the token addressed to the next communication device 802 to the bus 801 if the "transmission completion notification" cannot be detected within a certain time after outputting the token addressed to a certain communication device 802. .
- broadcasting is realized as follows.
- the source of the broadcast is in a normal packet of data.
- the counter value given first represents the upper limit (the range covered by the packet) of the number of communication devices that can be passed.
- the broadcast packet is output to all the buses 801 to which it is connected.
- the other communication device 802 that has detected the broadcast packet on one bus 801 decrements the counter by 1 and, if this is a positive value, generates a broadcast packet for the counter and then transmits the other packet. This is output to the node 801. If 0, do not output.
- an intra-bus ID is already assigned to the communication device 802.
- an external device not assigned an intra-node ID is connected to the same bus 801 via the connector unit 110 or the like.
- a unique ID that is not duplicated with other communication devices 802 and other external devices is assigned to the external device. This corresponds to the MAC address in TCP / IP communication and the telephone number in the telephone communication network.
- the ID in the external device bus connected to a certain bus 801 may be determined as appropriate.
- the route confirmation broadcast includes the following information.
- Source bus ID The initial value is the ID in the bus of the one external device.
- the communication device 802 that has detected the route confirmation broadcast performs the following processing.
- the external bus ID specified in the route determination broadcast with the smallest number of transfers is used for communication with the one external device. It is determined as a relay point.
- the response packet is output to the connected bus 801.
- the response packet includes the following information.
- Origination information Specify the unique ID of the other external device, that is, the “destination unique ID specified in the route determination broadcast”.
- Source bus ID The initial value is the in-bus ID of the other external device.
- the communication device 802 that has detected the response packet performs the following processing.
- the external device issues an “in-bus transmission request” to the connected node 801.
- the communication device 802 having the token in the node 801 outputs “in-bus transmission permission” to the bus 801.
- the external device When the external device detects “in-bus transmission permission”, it can transmit a packet to the bus 801.
- packets are transmitted and received between the external device and the communication device 802 having the token.
- the external device If the external device detects that “in-bus transmission permission” cannot be detected within a certain period of time, it issues an “in-bus transmission request” again and repeats the above processing.
- Collision determination / retransmission control like the CSMAZCD method may be performed between communication devices 802 connected to a certain bus 801, but many local loops and buses are connected. In the form of network topology, the above-described aspects are often more useful.
- a sheet-like communication device in which a plurality of communication elements are embedded, and the plurality of communication elements communicate with a communication element in the vicinity of the sheet to communicate a network.
- the communication device By forming the communication device, it is possible to provide a communication device that transmits information, and it can be applied to various communication technology fields.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006537585A JPWO2006035491A1 (ja) | 2004-09-27 | 2004-09-27 | 通信装置 |
PCT/JP2004/014111 WO2006035491A1 (ja) | 2004-09-27 | 2004-09-27 | 通信装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2004/014111 WO2006035491A1 (ja) | 2004-09-27 | 2004-09-27 | 通信装置 |
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WO2006035491A1 true WO2006035491A1 (ja) | 2006-04-06 |
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PCT/JP2004/014111 WO2006035491A1 (ja) | 2004-09-27 | 2004-09-27 | 通信装置 |
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JP (1) | JPWO2006035491A1 (ja) |
WO (1) | WO2006035491A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009296220A (ja) * | 2008-06-04 | 2009-12-17 | Teijin Fibers Ltd | 通信用シート構造体 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004007448A (ja) * | 2001-10-12 | 2004-01-08 | Serukurosu:Kk | 通信装置 |
JP2004242220A (ja) * | 2003-02-07 | 2004-08-26 | Serukurosu:Kk | 通信デバイス、通信装置、電源装置および電力供給デバイス |
-
2004
- 2004-09-27 WO PCT/JP2004/014111 patent/WO2006035491A1/ja not_active Application Discontinuation
- 2004-09-27 JP JP2006537585A patent/JPWO2006035491A1/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004007448A (ja) * | 2001-10-12 | 2004-01-08 | Serukurosu:Kk | 通信装置 |
JP2004242220A (ja) * | 2003-02-07 | 2004-08-26 | Serukurosu:Kk | 通信デバイス、通信装置、電源装置および電力供給デバイス |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009296220A (ja) * | 2008-06-04 | 2009-12-17 | Teijin Fibers Ltd | 通信用シート構造体 |
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JPWO2006035491A1 (ja) | 2008-05-15 |
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