WO2012046486A1 - 送信装置 - Google Patents
送信装置 Download PDFInfo
- Publication number
- WO2012046486A1 WO2012046486A1 PCT/JP2011/066131 JP2011066131W WO2012046486A1 WO 2012046486 A1 WO2012046486 A1 WO 2012046486A1 JP 2011066131 W JP2011066131 W JP 2011066131W WO 2012046486 A1 WO2012046486 A1 WO 2012046486A1
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- WIPO (PCT)
- Prior art keywords
- transmission unit
- printed wiring
- transmission
- adjacent
- wiring board
- Prior art date
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/03—Constructional details, e.g. casings, housings
Definitions
- the present invention relates to a transmission device including a plurality of transmission units arranged adjacent to each other.
- a transmission device that transmits a detected value of a physical state such as temperature, humidity, or pressure detected using a sensor to a place separated by radio waves using a transmission unit equipped with the sensor.
- the internal air pressure is detected by a sensor of the transmission unit, and the detected value is detected by radio waves using the transmission unit. It is known that it can transmit to a remote place, receive it, and monitor the internal air pressure without touching the pneumatic fender.
- a plurality of transmitters are provided for transmitting information at a time interval shorter than the transmission pause time defined by law.
- transmission timing in the transmitter can be different in order at predetermined intervals, transmission can be performed at a time interval shorter than the transmission pause time using a plurality of transmitters.
- the present invention provides a first printed wiring board and a second printed wiring board each having a rectangular shape, the surfaces of which are parallel to each other and arranged so that one of the surfaces faces each other.
- a printed circuit board provided between one printed circuit board and the other printed circuit board is provided between the printed circuit board and the second printed circuit board and fixed to the other printed circuit board with a predetermined interval.
- An electronic component having a plurality of columnar connection conductors for conductively connecting the printed wiring of the wiring board and forming a transmission circuit at one end in the length direction of the first and second printed wiring boards;
- a coiled antenna having a central axis extending in the width direction of the first and second printed wiring boards at the other end in the length direction of the first and second printed wiring boards is provided in the first and second.
- a plurality of transmission units each having a plane conductor plate that is disposed between the lint wiring boards and is fixed to the second printed wiring board in parallel to the other surface of the other end of the second printed wiring board;
- the planar conductor plates are opposed to each other, and adjacent to each other in the x-axis direction.
- One end of the two transmission units and the other end of the other are arranged adjacent to each other, and one end of the two transmission units adjacent to each other and the other end of the other are adjacent in the y-axis direction.
- the present invention provides first and second printed wiring boards each having a rectangular shape, the surfaces of which are parallel to each other and one of the surfaces faces each other, One printed wiring board is provided between one printed wiring board and the second printed wiring board, and the other printed wiring board is fixed to the one printed wiring board at a predetermined interval.
- a plurality of columnar connection conductors that conductively connect the printed wiring of the printed wiring board, and an electronic component that forms a transmission circuit is mounted on one end in the length direction of the first and second printed wiring boards,
- a coiled antenna having a central axis extending in the width direction of the first and second printed wiring boards at the other end in the length direction of the first and second printed wiring boards.
- a transmission unit comprising a planar conductor plate that is provided between the second printed wiring boards and is fixed to the second printed wiring board in parallel to the other surface of the other end of the second printed wiring board.
- a transmitting apparatus is proposed in which one end of the two transmitting units adjacent to each other in the y-axis direction and the other end of the other are adjacent to each other.
- the transmitter units are formed as described above, and a plurality of transmitter units are arranged adjacent to each other so that the coiled antennas are not adjacent to each other and a planar conductor plate is disposed between the adjacent antennas. Since they are arranged, interference between coiled antennas is minimized, so even if multiple transmission units are accommodated in the minimum necessary space, the decrease in transmission gain is reduced and good radio waves are emitted. Can do.
- FIG. 1 is an external view showing a transmission apparatus according to an embodiment of the present invention.
- FIG. 2 is an external perspective view showing a transmission unit according to an embodiment of the present invention.
- FIG. 3 is a plan view showing a transmission unit according to an embodiment of the present invention.
- FIG. 4 is a side cross-sectional view showing a transmission unit according to an embodiment of the present invention.
- FIG. 5 is an external perspective view showing a unit main body in one embodiment of the present invention.
- FIG. 6 is an external perspective view showing a unit main body in one embodiment of the present invention.
- FIG. 7 is an external perspective view showing the main part of the unit body in one embodiment of the present invention.
- FIG. 8 is a block diagram showing an electric circuit of the transmission unit in one embodiment of the present invention.
- FIG. 9 is an external perspective view showing a planar conductor plate and a holding material in one embodiment of the present invention.
- FIG. 10 is an external perspective view showing a holding material in one embodiment of the present invention.
- FIG. 11 is a Smith chart illustrating antenna characteristics according to an embodiment of the present invention.
- FIG. 12 is a schematic diagram illustrating the arrangement of the transmission units according to the first embodiment in one embodiment of the present invention.
- FIG. 13 is a schematic diagram showing a single transmission unit according to an embodiment of the present invention.
- FIG. 14 is a schematic diagram illustrating an arrangement of the transmission units according to the second embodiment in the embodiment of the present invention.
- FIG. 15 is a schematic diagram showing the arrangement of the transmission units of Comparative Example 1 in one embodiment of the present invention.
- FIG. 16 is a schematic diagram illustrating an arrangement of the transmission units of the comparative example 2 in the embodiment of the present invention.
- FIG. 17 is a schematic diagram illustrating an arrangement of the transmission units of the comparative example 3 in the embodiment of the present
- FIG. 1 is an external view showing a transmission device in one embodiment of the present invention
- FIG. 2 is an external perspective view showing a transmission unit in one embodiment of the present invention
- FIG. 3 is a plan view showing the transmission unit in one embodiment of the present invention.
- 4 is a side sectional view showing a transmission unit according to an embodiment of the present invention
- FIGS. 5 and 6 are external perspective views showing a unit main body according to an embodiment of the present invention
- FIG. 7 is an embodiment of the present invention.
- FIG. 8 is a block diagram showing an electric circuit of a transmission unit according to an embodiment of the present invention.
- reference numeral 10 denotes a transmitter, which is configured by accommodating eight transmitter units 100 (100a to 100h) in a cylindrical case 11 made of an insulator that transmits radio waves.
- Each of the transmission units 100 (100a to 100h) has the same shape, and is configured by housing the unit main body 300 in a substantially rectangular parallelepiped case 130 made of an insulator that transmits radio waves.
- the case 130 of the transmission unit 100 has a substantially rectangular parallelepiped shape, has protrusions for screwing at both ends in the longitudinal direction, and includes a case main body 131 and a lid 132. It is configured.
- a storage space 134 for storing the unit main body 300 is formed inside the case main body 131, and the opening of the storage space 134 is formed by fixing the lid 132 to the case main body 131 with screws 141. Closed.
- a vent hole 133 is formed in the lid body 132, and even when the lid body 132 is fixed to the case main body 131, air can flow from the outside to the storage space 134 through the vent hole 133. Yes.
- the unit main body 300 includes two printed wiring boards 351 and 352 having a substantially rectangular shape arranged in parallel at a predetermined interval, and a columnar connection constituting an antenna 450 therebetween.
- the conductor 354 and the third printed wiring board 353 for connection are fixed to each other.
- a coil-shaped antenna 450 having a central axis extending in the width direction of the first and second printed wiring boards 351 and 351 is formed at the other end portion in the longitudinal direction of the unit main body 300, and the sensor portion 410 and the battery are disposed at one end side.
- Electronic components that constitute an electronic circuit including 420 are mounted.
- the connecting printed wiring board 353 is soldered to each of the two printed wiring boards 351 and 352.
- the first printed wiring board 351 and the second printed wiring board 352 are provided between them, and fix the other printed wiring board to the one printed wiring board at a predetermined interval, and The printed wiring and the printed wiring of the other printed wiring board are connected by a plurality of columnar connecting conductors 354 that are conductively connected.
- the sensor unit 410 is mounted on the surface of the main body 300 and includes an air pressure detection element 411, a temperature detection element 412, and an analog / digital conversion circuit 413.
- an air pressure detection element 411 For example, the air pressure and temperature in the air chamber of a pneumatic fender Is detected by the air pressure detection element 411 and the temperature detection element 412, and the detection result is converted into a digital value by the analog / digital conversion circuit 413 and output to the main control unit 430.
- the battery 420 is connected to the unit main body 300 by a connecting conductor and supplies power to the detection / transmission circuit 400 formed in the unit main body 300.
- the main control unit 430 includes a well-known CPU and memory, receives the detection result from the sensor unit 410 as a digital value, generates digital information including the digital value, and outputs the digital information to the transmission unit 440.
- the digital information includes identification information unique to the unit main body 300, for example, a manufacturing number, in addition to the digital value of the detection result.
- the transmission unit 440 transmits the digital information input from the main control unit 430 using a predetermined frequency, for example, 315 MHz radio waves.
- the antenna 450 is a coiled antenna whose resonance frequency is set to the transmission frequency of the transmission unit 440, and the printed wiring 351a provided on the first printed wiring board 351 and the printed wiring 352a provided on the second printed wiring board 352.
- the printed wiring of the first printed wiring board 351 and the printed wiring of the second printed wiring board 352 are conductively connected and formed by columnar connecting conductors 354 that fix the printed wiring boards 351 and 352 to each other.
- a rectangular planar conductor plate 361 is fixed to the outer surface of the other end of the first printed wiring board 351 by four holding members 371.
- a planar conductor plate 361 is provided at the position of the antenna 450 so as to be parallel to the printed wiring board 351 located on the bottom surface side of the case main body 131 when the unit main body 300 is accommodated in the case 130.
- the flat conductor plate 361 is fixed to the first printed wiring board 351 by a holding material 371 so as to maintain a predetermined distance.
- the planar conductor plate 361 is conductively connected to a predetermined conductor pattern (a conductor pattern connected to the negative electrode of the battery 420) of the first printed wiring board 351 and set to a reference potential. Further, as shown in FIG.
- the holding member 371 is fixed to the four corners of the planar conductor plate 361. As shown in FIG. 10, the holding member 371 has a shape in which cylindrical projections 371b having a diameter smaller than that of the main body 371a are provided at both ends of the cylindrical main body 371a.
- the antenna 450 has a resonance frequency of 315 MHz when the planar conductor plate 361 is mounted on the printed wiring board 351.
- the characteristic curve using the Smith chart is represented by the curve A shown in FIG. 11, and the antenna impedance at 315 MHz. Is 50 ohms.
- the distance D between the printed wiring board 351 and the flat conductor plate 361 at this time is set to 1.5 mm by the holding material 371.
- the eight transmission units 100 are accommodated in the case 11 of the transmission device 10 with a necessary minimum space, a reduction in transmission gain can be suppressed and good radio waves can be emitted. Eight transmission units 100 are arranged.
- the following two arrangements are performed in order to suppress the decrease in the transmission gain as described above so that a favorable radio wave can be emitted.
- Example 1, Example 2, and Comparative Examples 1 to 3 will be described with respect to the arrangement of the eight transmission units 100 inside the case 11 of the transmission apparatus 10.
- FIG. 12 is a schematic diagram showing the arrangement of the transmission units 100 (100a to 100h) in the first embodiment. As shown in the figure, the arrangement of eight transmission units 100 (100a to 100h) will be described using xyz orthogonal coordinates.
- the arrangement of the transmission units 100 (100a to 100h) in the first embodiment is drawn in the central wavy square, and the arrangement of the transmission units 100 (100a to 100h) of each part is drawn outside the wavy square. The figure for showing the detail of is drawn.
- two transmission units 100 are stacked in the z-axis direction so that the planar conductor plates 361 face each other. That is, in the drawing, the z-axis is set to be perpendicular to the planes of the first and second printed circuit boards 351 and 352 of the unit main body 300.
- one end of the two adjacent transmission units and the other end of the other are arranged adjacent to each other, and y extends in the width direction of the transmission unit 100.
- one end of the two adjacent transmission units 100 and the other end of the other are arranged adjacent to each other.
- the first transmission unit 100a is arranged so that its longitudinal direction coincides with the x-axis direction and the z-axis is perpendicular to the plane of the planar conductor plate 361. Further, a third transmission unit 100c is superimposed on the first transmission unit 100a in the z-axis direction so that the planar conductor plate 361 faces the first transmission unit 100a.
- a second transmission unit 100b is arranged next to the first transmission unit 100a in the y-axis direction, and each planar conductor plate 361 is located on the same plane, and one end of the first transmission unit 100a. And the other end of the second transmission unit 100b are adjacent to each other, and the other end of the first transmission unit 100a and the one end of the second transmission unit 100b are adjacent to each other.
- the fourth transmission unit 100d is overlapped in the z-axis direction so that the planar conductor plate 361 faces the second transmission unit 100b. Accordingly, the fourth transmission unit 100d is arranged next to the third transmission unit 100c in the y-axis direction, and the planar conductor plates 361 of the third transmission unit 100c and the fourth transmission unit 100d are on the same plane. The other end of the third transmission unit 100c and the other end of the fourth transmission unit 100d are adjacent to each other, and the other end of the third transmission unit 100c and one end of the fourth transmission unit 100d. Are arranged adjacent to each other.
- a fifth transmission unit 100e is disposed next to the first transmission unit 100a in the x-axis direction.
- the fifth transmission unit 100e is arranged so that its longitudinal direction coincides with the x-axis direction, and the other end of the fifth transmission unit 100e is adjacent to one end of the first transmission unit 100a. Is arranged.
- a seventh transmission unit 100g is superimposed on the fifth transmission unit 100e in the z-axis direction so that the planar conductor plate 361 faces the fifth transmission unit 100e.
- a sixth transmission unit 100f is arranged next to the fifth transmission unit 100e in the y-axis direction, and each planar conductor plate 361 is located on the same plane, and one end of the fifth transmission unit 100e The other end of the sixth transmission unit 100f is adjacent to the other end, and the other end of the fifth transmission unit 100e is adjacent to one end of the sixth transmission unit 100f.
- the sixth transmission unit 100f is overlaid with the eighth transmission unit 100h in the z-axis direction so that the planar conductor plate 361 faces the sixth transmission unit 100f.
- the eighth transmission unit 100h is arranged next to the seventh transmission unit 100g in the y-axis direction, and the planar conductor plates 361 of the seventh transmission unit 100g and the eighth transmission unit 100h are on the same plane.
- the other end of the seventh transmission unit 100g and the other end of the eighth transmission unit 100h are adjacent to each other, and the other end of the seventh transmission unit 100g and one end of the eighth transmission unit 100h. Are arranged adjacent to each other.
- the eight transmission units 100 (100a to 100h) arranged as described above are accommodated in a cylindrical case 11 as shown in FIG.
- the transmission apparatus 10 configured as described above has a transmission gain of ⁇ 44.9 dBm as a whole.
- the transmission apparatus 10 of the first embodiment has a transmission gain difference of 0.4 dBm, which is substantially the same as when the transmission unit 100 is a single unit, and the eight transmission units 100a to 100h are provided with the minimum necessary space. Even when housed in the case 11 having the above, it is possible to emit a good radio wave while suppressing a decrease in transmission gain in each of the transmission units 100a to 100h.
- FIG. 14 is a schematic diagram showing the arrangement of the transmission units 100 (100a to 100h) in the second embodiment. As shown in the figure, the arrangement of eight transmission units 100 (100a to 100h) will be described using xyz orthogonal coordinates.
- the arrangement of the transmission units 100 (100a to 100h) in the second embodiment is drawn in the central wavy square, and the arrangement of the transmission units 100 (100a to 100h) in each part is drawn outside the wavy square. The figure for showing the detail of is drawn.
- two transmission units 100 are adjacent to each other in the z-axis direction so that the first printed wiring board 351 faces each other, and one end of one transmission unit and the other end of the other transmission unit 100 are They are stacked next to each other. That is, in the drawing, the z-axis is set to be perpendicular to the planes of the first and second printed circuit boards 351 and 352 of the unit main body 300.
- one end of the two adjacent transmission units and the other end of the other are arranged adjacent to each other, and y extends in the width direction of the transmission unit 100.
- one end of the two adjacent transmission units 100 and the other end of the other are arranged adjacent to each other.
- the first transmission unit 100a is arranged so that its longitudinal direction coincides with the x-axis direction and the z-axis is perpendicular to the plane of the planar conductor plate 361. Further, the first transmission unit 100a is adjacent to each other so that the first printed wiring board 351 on which the planar conductor plate 361 is fixed faces each other, and one end of one transmission unit 100 and the other end of the other transmission unit 100.
- the third transmission units 100c are stacked so that the parts are adjacent to each other.
- a second transmission unit 100b is arranged next to the first transmission unit 100a in the y-axis direction, and each planar conductor plate 361 is located on the same plane, and one end of the first transmission unit 100a. And the other end of the second transmission unit 100b are adjacent to each other, and the other end of the first transmission unit 100a and the one end of the second transmission unit 100b are adjacent to each other.
- the second transmission unit 100b is adjacent so that the first printed wiring board 351 on which the planar conductor plate 361 is fixed faces each other, and one end of one transmission unit 100 and the other end of the other transmission unit 100
- the fourth transmission units 100d are overlapped so that are adjacent to each other. Accordingly, the fourth transmission unit 100d is arranged next to the third transmission unit 100c in the y-axis direction, and the planar conductor plates 361 of the third transmission unit 100c and the fourth transmission unit 100d are on the same plane.
- the other end of the third transmission unit 100c and the other end of the fourth transmission unit 100d are adjacent to each other, and the other end of the third transmission unit 100c and one end of the fourth transmission unit 100d. Are arranged adjacent to each other.
- a fifth transmission unit 100e is disposed next to the first transmission unit 100a in the x-axis direction.
- the fifth transmission unit 100e is arranged so that its longitudinal direction coincides with the x-axis direction, and one end of the fifth transmission unit 100e is adjacent to the other end of the first transmission unit 100a. Is arranged.
- the fifth transmission unit 100e is adjacent so that the first printed wiring board 351 on which the planar conductor plate 361 is fixed faces each other, and one end of one transmission unit 100 and the other end of the other transmission unit 100
- the seventh transmission unit 100g is overlapped in the z-axis direction so that the parts are adjacent to each other.
- a sixth transmission unit 100f is arranged next to the fifth transmission unit 100e in the y-axis direction, and each planar conductor plate 361 is located on the same plane, and one end of the fifth transmission unit 100e The other end of the sixth transmission unit 100f is adjacent to the other end, and the other end of the fifth transmission unit 100e is adjacent to one end of the sixth transmission unit 100f.
- the sixth transmission unit 100f is adjacent so that the first printed wiring board 351 on which the planar conductor plate 361 is fixed faces each other, and one end of one transmission unit 100 and the other end of the other transmission unit 100 Are stacked in the z-axis direction so that they are adjacent to each other.
- the eighth transmission unit 100h is arranged next to the seventh transmission unit 100g in the y-axis direction, and the planar conductor plates 361 of the seventh transmission unit 100g and the eighth transmission unit 100h are on the same plane.
- the other end of the seventh transmission unit 100g and the other end of the eighth transmission unit 100h are adjacent to each other, and the other end of the seventh transmission unit 100g and one end of the eighth transmission unit 100h. Are arranged adjacent to each other.
- the eight transmission units 100 (100a to 100h) arranged as described above are accommodated in a cylindrical case 11 as shown in FIG.
- the transmission apparatus 10 configured as described above has a transmission gain of ⁇ 44.9 dBm as a whole.
- the transmission device 10 of the second embodiment has a transmission gain difference of ⁇ 1.8 dBm, which is almost the same as when the transmission unit 100 is used alone, and the eight transmission units 100a to 100h are minimized. Even when accommodated in the case 11 having a space, the transmission units 100a to 100h can emit a favorable radio wave while suppressing a decrease in transmission gain.
- FIG. 15 is a schematic diagram showing the arrangement of the transmission units 100 (100a to 100h) in the first comparative example. As shown in the figure, the arrangement of eight transmission units 100 (100a to 100h) will be described using xyz orthogonal coordinates.
- the arrangement of the transmission units 100 (100a to 100h) in Comparative Example 1 is drawn in the central wavy square, and the arrangement of the transmission units 100 (100a to 100h) in each part is drawn outside the wavy square. The figure for showing the detail of is drawn.
- Comparative Example 1 two transmission units 100 are stacked in the z-axis direction so that the planar conductor plates 361 face each other. That is, in the drawing, the z-axis is set to be perpendicular to the planes of the first and second printed circuit boards 351 and 352 of the unit main body 300.
- one end of the two adjacent transmission units and the other end are arranged adjacent to each other, and the y-axis extending in the width direction of the transmission unit 100 In the direction, one end of the two adjacent transmission units 100 and the other end are arranged adjacent to each other.
- the first transmission unit 100a is arranged so that its longitudinal direction coincides with the x-axis direction and the z-axis is perpendicular to the plane of the planar conductor plate 361. Further, a third transmission unit 100c is superimposed on the first transmission unit 100a in the z-axis direction so that the planar conductor plate 361 faces the first transmission unit 100a.
- a second transmission unit 100b is arranged next to the first transmission unit 100a in the y-axis direction, and each planar conductor plate 361 is located on the same plane, and one end of the first transmission unit 100a. And one end of the second transmission unit 100b are adjacent to each other, and the other end of the first transmission unit 100a and the other end of the second transmission unit 100b are adjacent to each other.
- the fourth transmission unit 100d is overlapped in the z-axis direction so that the planar conductor plate 361 faces the second transmission unit 100b. Accordingly, the fourth transmission unit 100d is arranged next to the third transmission unit 100c in the y-axis direction, and the planar conductor plates 361 of the third transmission unit 100c and the fourth transmission unit 100d are on the same plane.
- the first transmission unit 100c and the fourth transmission unit 100d are adjacent to each other, and the other end of the third transmission unit 100c and the other end of the fourth transmission unit 100d. Are arranged adjacent to each other.
- a fifth transmission unit 100e is disposed next to the first transmission unit 100a in the x-axis direction.
- the fifth transmission unit 100e is arranged so that its longitudinal direction coincides with the x-axis direction, and one end of the fifth transmission unit 100e is adjacent to one end of the first transmission unit 100a. Has been placed.
- a seventh transmission unit 100g is superimposed on the fifth transmission unit 100e in the z-axis direction so that the planar conductor plate 361 faces the fifth transmission unit 100e.
- a sixth transmission unit 100f is arranged next to the fifth transmission unit 100e in the y-axis direction, and each planar conductor plate 361 is located on the same plane, and one end of the fifth transmission unit 100e The sixth transmission unit 100f is arranged so that one end thereof is adjacent, and the other end of the fifth transmission unit 100e is adjacent to the other end of the sixth transmission unit 100f.
- the sixth transmission unit 100f is overlaid with the eighth transmission unit 100h in the z-axis direction so that the planar conductor plate 361 faces the sixth transmission unit 100f.
- the eighth transmission unit 100h is arranged next to the seventh transmission unit 100g in the y-axis direction, and the planar conductor plates 361 of the seventh transmission unit 100g and the eighth transmission unit 100h are on the same plane. It is located above, one end of the seventh transmission unit 100g and one end of the eighth transmission unit 100h are adjacent to each other, and the other end of the seventh transmission unit 100g and the other end of the eighth transmission unit 100h Are arranged adjacent to each other.
- the transmission device 10 of Comparative Example 1 has a transmission gain difference of ⁇ 7.3 dBm compared to the case of the transmission unit 100 alone, and the amount of attenuation increased. For this reason, when the eight transmission units 100a to 100h are accommodated in the case 11 having the necessary minimum space, the transmission gain is greatly reduced in each of the transmission units 100a to 100h. I can say that.
- FIG. 16 is a schematic diagram showing an arrangement of the transmission units 100 (100a to 100h) in the second comparative example. As shown in the figure, the arrangement of eight transmission units 100 (100a to 100h) will be described using xyz orthogonal coordinates.
- the arrangement of the transmission units 100 (100a to 100h) in Comparative Example 2 is drawn in the central wavy square, and the arrangement of the transmission units 100 (100a to 100h) of each part is shown outside the wavy square. The figure for showing the detail of is drawn.
- one end of the two adjacent transmission units and the other end of the other are arranged adjacent to each other, and y extends in the width direction of the transmission unit 100.
- one end portion of the two adjacent transmission units 100 and the other end portion are arranged adjacent to each other.
- the first transmission unit 100a is arranged so that its longitudinal direction coincides with the x-axis direction and the z-axis is perpendicular to the plane of the planar conductor plate 361. Further, the first transmission unit 100a is adjacent to each other so that the first printed wiring board 351 on which the planar conductor plate 361 is fixed faces each other, and one end of one transmission unit 100 and the other end of the other transmission unit 100.
- the third transmission units 100c are stacked so that the parts are adjacent to each other.
- a second transmission unit 100b is arranged next to the first transmission unit 100a in the y-axis direction, and each planar conductor plate 361 is located on the same plane, and one end of the first transmission unit 100a. And one end of the second transmission unit 100b are adjacent to each other, and the other end of the first transmission unit 100a and the other end of the second transmission unit 100b are adjacent to each other.
- the second transmission unit 100b is adjacent so that the first printed wiring board 351 on which the planar conductor plate 361 is fixed faces each other, and one end of one transmission unit 100 and the other end of the other transmission unit 100
- the fourth transmission units 100d are overlapped so that are adjacent to each other. Accordingly, the fourth transmission unit 100d is arranged next to the third transmission unit 100c in the y-axis direction, and the planar conductor plates 361 of the third transmission unit 100c and the fourth transmission unit 100d are on the same plane.
- the first transmission unit 100c and the fourth transmission unit 100d are adjacent to each other, and the other end of the third transmission unit 100c and the other end of the fourth transmission unit 100d. Are arranged adjacent to each other.
- a fifth transmission unit 100e is disposed next to the first transmission unit 100a in the x-axis direction.
- the fifth transmission unit 100e is arranged so that its longitudinal direction coincides with the x-axis direction, and one end of the fifth transmission unit 100e is adjacent to the other end of the first transmission unit 100a. Is arranged.
- the fifth transmission unit 100e is adjacent so that the first printed wiring board 351 on which the planar conductor plate 361 is fixed faces each other, and one end of one transmission unit 100 and the other end of the other transmission unit 100
- the seventh transmission unit 100g is overlapped in the z-axis direction so that the parts are adjacent to each other.
- a sixth transmission unit 100f is arranged next to the fifth transmission unit 100e in the y-axis direction, and each planar conductor plate 361 is located on the same plane, and one end of the fifth transmission unit 100e
- the sixth transmission unit 100f is arranged so that one end thereof is adjacent, and the other end of the fifth transmission unit 100e is adjacent to the other end of the sixth transmission unit 100f.
- the sixth transmission unit 100f is adjacent so that the first printed wiring board 351 on which the planar conductor plate 361 is fixed faces each other, and one end of one transmission unit 100 and the other end of the other transmission unit 100 Are stacked in the z-axis direction so that they are adjacent to each other.
- the eighth transmission unit 100h is arranged next to the seventh transmission unit 100g in the y-axis direction, and the planar conductor plates 361 of the seventh transmission unit 100g and the eighth transmission unit 100h are on the same plane. It is located above, one end of the seventh transmission unit 100g and one end of the eighth transmission unit 100h are adjacent to each other, and the other end of the seventh transmission unit 100g and the other end of the eighth transmission unit 100h Are arranged adjacent to each other.
- the transmission device 10 of Comparative Example 2 has a transmission gain difference of ⁇ 10.6 dBm compared to the case of the transmission unit 100 alone, and the amount of attenuation increased. For this reason, when the eight transmission units 100a to 100h are accommodated in the case 11 having the necessary minimum space, the transmission gain is greatly reduced in each of the transmission units 100a to 100h. I can say that.
- FIG. 17 is a schematic diagram showing the arrangement of the transmission units 100 (100a to 100h) in the third comparative example. As shown in the figure, the arrangement of eight transmission units 100 (100a to 100h) will be described using xyz orthogonal coordinates.
- the arrangement of the transmission units 100 (100a to 100h) in the comparative example 3 is drawn in the central wavy square, and the arrangement of the transmission units 100 (100a to 100h) of each part is drawn outside the wavy square.
- the figure for showing the detail of is drawn.
- one end of the two adjacent transmission units and the other end of the other are arranged adjacent to each other, and y extends in the width direction of the transmission unit 100.
- one end of the two adjacent transmission units 100 and the other end of the other are arranged adjacent to each other.
- the first transmission unit 100a is arranged so that its longitudinal direction coincides with the x-axis direction and the z-axis is perpendicular to the plane of the planar conductor plate 361. Further, the second printed wiring board 352 is opposed to the first transmission unit 100a, and the third end in the z-axis direction is arranged so that one end of one transmission unit 100 and one end of the other transmission unit 100 are adjacent to each other. Transmission units 100c are stacked.
- a second transmission unit 100b is arranged next to the first transmission unit 100a in the y-axis direction, and each planar conductor plate 361 is located on the same plane, and one end of the first transmission unit 100a. And the other end of the second transmission unit 100b are adjacent to each other, and the other end of the first transmission unit 100a and the one end of the second transmission unit 100b are adjacent to each other.
- a fifth transmission unit 100e is disposed next to the first transmission unit 100a in the x-axis direction.
- the fifth transmission unit 100e is arranged so that its longitudinal direction coincides with the x-axis direction, and the other end of the fifth transmission unit 100e is adjacent to one end of the first transmission unit 100a. Is arranged.
- the fifth transmission unit 100e is opposed to the second printed wiring board 352, and the seventh end in the z-axis direction is arranged so that one end of one transmission unit 100 and one end of the other transmission unit 100 are adjacent to each other.
- Transmission units 100g are stacked.
- a sixth transmission unit 100f is arranged next to the fifth transmission unit 100e in the y-axis direction, and each planar conductor plate 361 is located on the same plane, and one end of the fifth transmission unit 100e The other end of the sixth transmission unit 100f is adjacent to the other end, and the other end of the fifth transmission unit 100e is adjacent to one end of the sixth transmission unit 100f.
- the sixth transmission unit 100f is opposed to the second printed wiring board 352 and the eighth transmission unit in the z-axis direction so that one end of one transmission unit 100 and one end of the other transmission unit 100 are adjacent to each other. 100h is superimposed.
- the eighth transmission unit 100h is arranged next to the seventh transmission unit 100g in the y-axis direction, and the planar conductor plates 361 of the seventh transmission unit 100g and the eighth transmission unit 100h are on the same plane.
- the other end of the seventh transmission unit 100g and the other end of the eighth transmission unit 100h are adjacent to each other, and the other end of the seventh transmission unit 100g and one end of the eighth transmission unit 100h. Are arranged adjacent to each other.
- the transmission device 10 of Comparative Example 3 has a transmission gain difference of -10.7 dBm compared to the case of the transmission unit 100 alone, and the amount of attenuation increased. For this reason, when the eight transmission units 100a to 100h are accommodated in the case 11 having the necessary minimum space, the transmission gain is greatly reduced in each of the transmission units 100a to 100h. I can say that.
- each transmission unit 100a to 100h is actually arranged in a state where there is no gap.
- the transmission unit 100 that can detect both the air pressure and the temperature is configured.
- a transmission unit that can detect either the air pressure or the temperature or another physical quantity may be configured.
- the transmission device is mounted on the pneumatic fender, but the present invention is not limited to this, and it goes without saying that the transmission device of the present invention can be applied to other than the pneumatic fender. That is.
Abstract
Description
Claims (5)
- 互いに面が平行であり且つ双方の一方の面が対向するように配置された長方形をなす第1及び第2プリント配線基板と、前記第1プリント配線基板と前記第2プリント配線基板との間に設けられ一方のプリント配線基板に対して他方のプリント配線基板を所定の間隔をあけて固定するとともに一方のプリント配線基板のプリント配線と他方のプリント配線基板のプリント配線とを導電接続する複数の柱状接続導体とを有し、前記第1及び第2プリント配線基板の長手方向の一端部に送信回路を形成する電子部品が搭載され、前記第1及び第2プリント配線基板の長手方向の他端部において前記第1及び第2プリント配線基板の幅方向に延びる中心軸を有するコイル状のアンテナを前記第1及び第2プリント配線基板間に有するとともに、前記第1プリント配線基板の他端部の他方の面に対して平行に前記第1プリント配線基板に固定されている平面導体板とを備えた送信ユニットを複数個隣り合わせに配置した送信装置であって、
xyz直交座標において、z軸方向には2つの前記送信ユニットのみが隣り合い且つ前記平面導体板が対向するように配置され、
x軸方向には隣り合う2つの前記送信ユニットの一方の一端部と他方の他端部が隣り合うように配置され、
y軸方向には隣り合う2つの前記送信ユニットの一方の一端部と他方の他端部が隣り合うように配置されている
ことを特徴とする送信装置。 - 互いに面が平行であり且つ双方の一方の面が対向するように配置された長方形をなす第1及び第2プリント配線基板と、前記第1プリント配線基板と前記第2プリント配線基板との間に設けられ一方のプリント配線基板に対して他方のプリント配線基板を所定の間隔をあけて固定するとともに一方のプリント配線基板のプリント配線と他方のプリント配線基板のプリント配線とを導電接続する複数の柱状接続導体とを有し、前記第1及び第2プリント配線基板の長手方向の一端部に送信回路を形成する電子部品が搭載され、前記第1及び第2プリント配線基板の長手方向の他端部において前記第1及び第2プリント配線基板の幅方向に延びる中心軸を有するコイル状のアンテナを前記第1及び第2プリント配線基板間に有するとともに、前記第1プリント配線基板の他端部の他方の面に対して平行に前記第1プリント配線基板に固定されている平面導体板とを備えた送信ユニットを複数個隣り合わせに配置した送信装置であって、
xyz直交座標において、z軸方向には2つの前記送信ユニットのみが前記第1プリント配線基板が対向するように隣り合い且つ一方の送信ユニットの一端部と他方の送信ユニットの他端部とが隣り合うように配置され、
x軸方向には隣り合う2つの前記送信ユニットの一方の一端部と他方の他端部が隣り合うように配置され、
y軸方向には隣り合う2つの前記送信ユニットの一方の一端部と他方の他端部が隣り合うように配置されている
ことを特徴とする送信装置。 - xyzの3つの軸のそれぞれの方向に前記送信ユニットが2つずつ配置され、合計8個の送信ユニットを備えている
ことを特徴とする請求項1又は2に記載の送信装置。 - 前記複数の送信ユニットが1つのケース内に収容されてなる
ことを特徴とする請求項1乃至3の何れかに記載の送信装置。 - 前記アンテナが前記第1及び第2プリント配線基板のプリント配線と前記柱状接続導体とから形成されている
ことを特徴とする請求項1乃至4の何れかに記載の送信装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN201180048088.9A CN103155422B (zh) | 2010-10-06 | 2011-07-14 | 发送装置 |
EP11830420.3A EP2627011B1 (en) | 2010-10-06 | 2011-07-14 | Transmission device |
US13/877,382 US8818301B2 (en) | 2010-10-06 | 2011-07-14 | Transmission device |
KR1020137008690A KR101318726B1 (ko) | 2010-10-06 | 2011-07-14 | 송신 장치 |
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JP2010-226415 | 2010-10-06 | ||
JP2010226415A JP4858733B1 (ja) | 2010-10-06 | 2010-10-06 | 送信装置 |
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WO2012046486A1 true WO2012046486A1 (ja) | 2012-04-12 |
Family
ID=45604535
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PCT/JP2011/066131 WO2012046486A1 (ja) | 2010-10-06 | 2011-07-14 | 送信装置 |
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US (1) | US8818301B2 (ja) |
EP (1) | EP2627011B1 (ja) |
JP (1) | JP4858733B1 (ja) |
KR (1) | KR101318726B1 (ja) |
CN (1) | CN103155422B (ja) |
WO (1) | WO2012046486A1 (ja) |
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EP2863476A4 (en) * | 2012-06-13 | 2016-03-02 | Yokohama Rubber Co Ltd | TRANSMISSION DEVICE AND DEFENSE PROVIDED WITH THE SAME |
DE102016112761A1 (de) | 2015-07-13 | 2017-01-19 | Denso Corporation | Abgasfilter |
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DE112011104017T5 (de) * | 2010-12-02 | 2013-09-05 | The Yokohama Rubber Co., Ltd. | Reifen ausgestattet mit einem Informationsbeschaffungsgerät |
JP2016046791A (ja) * | 2014-08-27 | 2016-04-04 | 横浜ゴム株式会社 | 送信装置 |
US10321556B2 (en) * | 2016-04-29 | 2019-06-11 | Hewlett Packard Enterprise Development Lp | Air dielectric printed circuit board |
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DE102016112761A1 (de) | 2015-07-13 | 2017-01-19 | Denso Corporation | Abgasfilter |
Also Published As
Publication number | Publication date |
---|---|
EP2627011B1 (en) | 2015-08-19 |
US8818301B2 (en) | 2014-08-26 |
KR20130081287A (ko) | 2013-07-16 |
JP2012080484A (ja) | 2012-04-19 |
CN103155422B (zh) | 2014-12-31 |
US20130189938A1 (en) | 2013-07-25 |
JP4858733B1 (ja) | 2012-01-18 |
CN103155422A (zh) | 2013-06-12 |
KR101318726B1 (ko) | 2013-10-16 |
EP2627011A4 (en) | 2014-04-09 |
EP2627011A1 (en) | 2013-08-14 |
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