JP2005236842A - Radio circuit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To compose a radio circuit of the same high-frequency circuit, the wireless circuit which corresponds to an external apparatus to be connected, by making an external interface circuit and a signal processing circuit correspond to the external apparatus, even if the external apparatus to which the wireless circuit is connected, is different. <P>SOLUTION: Connectors 19, 20 are provided between an antenna 11 and a high-frequency circuit 12, so that the antenna can be switched to an antenna which realizes optimal radio wave radiation characteristics, in an environment where a radio circuit is installed. Connectors for connection 17, 18, 15, 16 are mounted between the high-frequency circuit 12 and a signal-processing circuit 13 and between the signal processing circuit 13 and an external interface circuit 4, thereby switching the signal-processing circuit and the external interface circuit into signal-processing circuits and internal interface circuits corresponding to various external apparatuses, when connecting the wireless circuit to the external apparatuses. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a radio circuit of a radio used for remote control of equipment.

  In a conventional wireless circuit, a signal processing circuit and a signal processing unit are integrally formed on one circuit board (for example, see Patent Document 1).

FIG. 6 shows a conventional wireless circuit mounting structure, in which 51 is an antenna, 52 is a printed circuit board, 53 is a high-frequency circuit, 54 is a signal processing circuit, and 55 is an external interface circuit. Here, the antenna 51, the signal processing circuit 54, and the external interface circuit 55 are formed on the same substrate and connected to a circuit corresponding to a specific external connection device (not shown).
JP 2003-32138 A (FIG. 2)

  However, in the conventional configuration, it is necessary to create a wireless circuit having a different external interface circuit and a signal processing circuit for each external connection device to which the wireless circuit is connected. Although one external interface circuit and signal processing unit can cope, there is a problem that when a wireless circuit is connected to a device having a different standard, a wireless circuit corresponding to the standard must be developed.

  Further, there are at least two types of antennas connected to the radio circuit, and there is a problem that an optimum antenna is not installed for the external environment.

  The present invention solves the above-described problem. Even if the external device to which the wireless circuit is connected is different, the external interface circuit and the signal processing circuit are made compatible with the external device, so that the same high-frequency circuit can be connected to the external device to be connected. An object of the present invention is to realize a wireless circuit.

  In order to solve the above-mentioned problems, the present invention is such that an external interface circuit, a signal processing circuit, a high-frequency circuit, etc. are connected via connectors, respectively, and an optimal combination is made according to the external connection device and application. It is possible to do.

  Even if the external connection device is changed, the wireless circuit of the present invention can share the high frequency circuit by individually replacing the signal processing circuit and the external interface circuit to which the connector is connected with a circuit corresponding to the changed external device. Therefore, it is possible to replace an antenna having an optimum radio wave radiation characteristic among the antennas that can be connected to the environment in which the radio circuit is installed.

  A first invention includes a printed circuit board A on which a signal processing circuit and a high-frequency circuit are formed, a printed circuit board B on which an external interface circuit is formed, and an antenna connected to the high-frequency circuit. The external interface circuit of the board B and the signal processing circuit of the printed circuit board B are connected via a connector, and the external interface circuit can be replaced by an external connection device. The external interface circuit can be replaced by an external connection device.

  The second invention includes a printed circuit board C on which a high-frequency circuit is formed, a printed circuit board D on which a signal processing circuit and an external interface circuit are formed, an antenna connected to the high-frequency circuit through a wiring pattern, and a shield for the high-frequency circuit. The signal processing circuit of the printed circuit board D and the high frequency circuit of the printed circuit board C are connected via a connector, and the external interface circuit and the signal processing circuit are integrated. The configured board can be replaced by an external connection device.

  A third invention includes a printed circuit board on which a signal processing circuit and a wiring pattern of a high-frequency circuit and an external interface circuit are formed, an antenna connected to the high-frequency circuit, and a shield case that shields the high-frequency circuit, The high frequency circuit is characterized in that it is connected via a connector, and the antenna can be replaced so that radio wave radiation is best for the environment in which the radio circuit is installed, The antenna can be replaced so that radio wave radiation is best for the environment where the radio circuit is installed.

  According to a fourth invention, a printed circuit board E on which a signal processing circuit is formed, a printed circuit board F on which a high-frequency circuit is formed, a printed circuit board G on which an external interface circuit is formed, and a connector on the high-frequency circuit via a connector A shield case that shields the connected antenna and the high-frequency circuit; the high-frequency circuit of the printed circuit board F; the signal processing circuit of the printed circuit board E; and the external interface circuit of the printed circuit board G and the signal of the printed circuit board E A processing circuit is connected to each other via a connector, and the antenna can be replaced with an environment in which a radio circuit is installed, and an external device to which the radio circuit is connected The external interface circuit and the signal processing unit can be replaced respectively. In the antenna can be replaced against the environment to install a radio circuit, and the external device connected to a wireless circuit can be replaced external interface circuit, and a signal processing unit, respectively.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
Embodiment 1 of the present invention will be described below. FIG. 1 is a system configuration diagram of a home appliance network system. The outline | summary about a household electrical equipment network system is demonstrated using FIG. 1, and a household electrical equipment network control information terminal device is demonstrated after that.

  In FIG. 1, reference numeral 1 is a home electric device network control information terminal device slave unit, 2 is a home electric device network control information terminal device base unit, 3 is an air conditioner, 4 is a refrigerator, 5 is a microwave oven, 6 is a power meter, 7 Is a gas meter, 8 is a water meter, 9 is a television, 10 is a video deck, and 11 is a house. Next, the operation will be described. The operator uses the home electrical device network control information terminal device slave unit 1 that is not fixed or the home electrical device network control information terminal device base unit 2 that is fixed in the house, Control such as on / off of the air conditioner 3, retrieval of the contents of the refrigerator 4, control of the microwave oven 5, control of on / off of the television 9, control of on / off of the video deck 10, recording, etc. are performed. The meter reading values and various information of the power meter 6, the gas meter 7, and the water meter 8 are stored in the home electrical device network control information terminal device slave unit 1 and the home electrical device network control information terminal device base unit 2. Further, emergency signals and the like are transmitted to the home electrical equipment network control information terminal equipment slave unit 1 and the home electrical equipment network control information terminal equipment base unit 2, and through these equipments, through the external network, the power company, gas It is transmitted to the company, water department, etc. Note that the home electrical device network control information terminal device slave unit 1 and the home electrical device network control information terminal device base unit 2 use a specific low power radio telemeter / telecontrol frequency band of 429 MHz band.

  Next, a mounting board in a wireless adapter used in the wireless system will be described.

  In FIG. 2, 11 is a radiation element of an antenna, 12 is a high-frequency circuit of a radio circuit board, 13 is a signal processing circuit of the radio circuit board, 14 is an external interface circuit of the radio circuit board, and 15 is an external of the signal processing circuit of the radio circuit board. Connector for interface circuit connection, 16 is a connector for signal processing circuit connection of an external interface circuit, 21a is a printed circuit board A on which the high frequency circuit 12 and the signal processing circuit 13 are formed, and 21b is a printed circuit board B on which an interface circuit is formed. It is.

  According to such a configuration, even if the external connection device connected to the wireless circuit is changed, the external interface circuit to which the connector is connected is replaced with a circuit corresponding to the changed external device. A part other than the interface circuit can be used in common.

  In addition, although this Embodiment demonstrated using the radio | wireless machine used for radio | wireless systems, such as equipment, the radio | wireless adapter of the radio | wireless automatic meter-reading system of a gas meter may be sufficient.

  The configuration of the present embodiment can be applied to any of the following embodiments and has the same effect.

(Embodiment 2)
FIG. 3 is a configuration diagram according to the second embodiment of the present invention.

  In FIG. 3, the same constituent elements as those in the above embodiment are given the same numbers, and the description thereof is omitted. In FIG. 3, 21d is a printed circuit board D on which the high frequency circuit 12 is formed, 21e is a printed circuit board D on which the signal processing circuit 13 is formed, a high frequency circuit 17 is a connector for connecting a signal processing circuit of the high frequency circuit, 18 Is a connector for high-frequency circuit connection of a signal processing circuit.

  According to such a configuration, even if the external connection device connected to the wireless circuit is changed, the signal processing circuit and the external interface circuit to which the connector is connected are replaced with a circuit corresponding to the changed external device. A portion other than the signal processing circuit and the external interface circuit of the circuit can be used in common.

(Embodiment 3)
FIG. 4 is a configuration diagram according to Embodiment 3 of the present invention.

  In FIG. 4, the same components as those in the above embodiment are given the same reference numerals, and the description thereof is omitted. In FIG. 4, 19 is a connector for high-frequency circuit connection of an antenna, and 20 is a connector for antenna connection of a high-frequency circuit.

  According to such a configuration, by replacing the antenna having the optimum radio wave radiation characteristic among the antennas that can be connected to the environment where the radio circuit is installed, the radio circuit of the radio circuit, the signal processing circuit, and the outside A part other than the interface circuit can be used in common.

(Embodiment 4)
FIG. 5 is a configuration diagram according to Embodiment 3 of the present invention.

  In FIG. 5, the same components as those in the above embodiment are given the same numbers, and the description thereof is omitted. In FIG. 5, 21e is a printed circuit board E on which a signal processing circuit is formed, 21f is a printed circuit board F on which a high-frequency circuit is formed, and 21g is a printed circuit board G on which an interface circuit is formed.

  According to such a configuration, even if the external connection device connected to the wireless circuit is changed, the signal processing circuit and the external interface circuit to which the connector is connected can be individually replaced with a circuit corresponding to the changed external device. It is possible to deal with a common high-frequency circuit, and to replace the antenna having the optimum radio wave radiation characteristic among the antennas that can be connected to the environment where the radio circuit is installed.

  As described above, the wireless circuit of the present invention can replace the signal processing circuit and the external interface circuit to which the connector is connected individually with a circuit corresponding to the changed external device even if the external connection device is changed. Since it is possible to cope with a common high-frequency circuit, it can be applied to the use of a wireless device that requires individual correspondence according to the use environment.

System configuration diagram of home appliance network system Configuration diagram of a radio circuit according to the first embodiment of the present invention Configuration diagram of a radio circuit according to Embodiment 2 of the present invention Configuration diagram of radio circuit according to Embodiment 3 of the present invention Configuration diagram of a radio circuit according to the fourth embodiment of the present invention Configuration diagram of a radio circuit in a conventional radio

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Antenna 12 High frequency circuit 13 Signal processing circuit 14 External interface circuit 15, 16, 17, 18, 19, 20 Connector 21a Printed circuit board A
21b Printed circuit board B
21c Printed circuit board C
21d Printed circuit board D
21e Printed circuit board E
21f Printed circuit board F
21g Printed circuit board G

Claims (4)

A printed circuit board A on which a signal processing circuit and a high frequency circuit are formed, a printed circuit board B on which an external interface circuit is formed, and an antenna connected to the high frequency circuit, and an external interface circuit of the printed circuit board B And a signal processing circuit of the printed circuit board B connected via a connector. A printed circuit board C on which a high-frequency circuit is formed; a printed circuit board D on which a signal processing circuit and an external interface circuit are formed; an antenna connected to the high-frequency circuit through a wiring pattern; and a shield case that shields the high-frequency circuit; A radio circuit, wherein a signal processing circuit of the printed circuit board D and a high frequency circuit of the printed circuit board C are connected via a connector. A printed circuit board on which a wiring pattern of a signal processing circuit and a high-frequency circuit and an external interface circuit are formed, an antenna connected to the high-frequency circuit, and a shield case that shields the high-frequency circuit, the antenna and the high-frequency circuit having a connector A wireless circuit characterized by being connected via A printed circuit board E on which a signal processing circuit is formed, a printed circuit board F on which a high-frequency circuit is formed, a printed circuit board G on which an external interface circuit is formed, an antenna connected to the high-frequency circuit via a connector, A shield case for shielding the high-frequency circuit; the high-frequency circuit of the printed circuit board F and the signal processing circuit of the printed circuit board E; and the external interface circuit of the printed circuit board G and the signal processing circuit of the printed circuit board E, respectively. A wireless circuit characterized by being connected via a cable.

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