JPH11150490A - Radio communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve communication sensitivity, while improving the portability on a binding type notebook and also to make effective use of a power supply. SOLUTION: When a portable telephone set main body 2 is mounted on a binding guide section 3 of a binding type notebook, a circuit changeover control section 55 of the portable telephone set 1 selects a first external antenna 8 from a built-antenna 18. A changeover switch 47 selects either of reception system high frequency circuits 45, 70 of the antenna with a higher level in an electric field strength monitor signal RSSI, by periodically comparing electric field strength monitor signals RSSI-A, B from the reception system high frequency circuits 45, 70. Even when the portable telephone set main body 3 is mounted on the binding type notebook, good communication sensitivity is obtained automatically. When the portable telephone set main body 2 is mounted on the binding guide section 3, a power supply control section 56 controls a power supply changeover switch 58 to select an externally mounted rechargeable battery 73 of the binding guide section 3 from the built-in rechargeable battery 60 to suppress consumption of the built-in rechargeable battery 60.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication device, and more particularly to a portable communication device capable of improving portability with a binding type notebook, improving communication performance and efficiently using a power source. The present invention relates to a wireless communication device.

[0002]

2. Description of the Related Art In recent years, personalization of portable telephone terminals has rapidly progressed, and in addition to analog cordless telephones, digital cordless telephones with improved call quality have appeared in telephones. In addition, a simplified next-generation cordless telephone system (Personal Handy-phone System: P
HS) has been standardized, and a digital car phone / cell phone system (Japan Digital Cordless phone: JDC) has been put into practical use.
It is increasing.

Conventionally, these wireless communication devices such as a portable telephone device are generally used alone as a wireless communication device, and are generally carried alone.

On the other hand, in recent years, binding type (system type) notebooks have appeared, and the binding type notebooks are widely used because of their high degree of freedom in page setting and the convenience that small items such as stationery and calculators can be bound together. It is supposed to be.

When a user of such a binding type notebook carries his / her mobile phone, he / she carries the binding type notebook and the telephone separately.

[0006]

However, in such a conventional wireless communication device, a user who uses both the binding notebook and the wireless communication device has to separate the binding notebook and the wireless communication device. There is a problem that their usability and portability are poor.

In view of the above, the first aspect of the present invention provides a binding type notebook having a built-in antenna and a built-in power supply means in a binding type notebook via a binding guide portion attached to a binding claw of the binding notebook. First and second external antennas are provided at positions where the wireless communication device is detachably mounted and a space-diversity is formed in the binding type notebook at a distance of at least the carrier wavelength / 2 or more, and the wireless communication apparatus main body is provided with a binding guide unit. When mounted on the antenna, the built-in antenna is switched to the first external antenna, and the one of the first external antenna and the second external antenna having the larger electric field strength of the receiving carrier is used as the antenna used for communication. Select and connect to the communication circuit of the wireless communication device. When the main body of the wireless communication device is mounted on the binding guide unit, the power is supplied by switching from the built-in power supply unit to the external power supply unit provided in the binding guide unit. In addition to improving portability, it is possible to automatically obtain appropriate communication sensitivity when the wireless communication device body is bound to a binding notebook, and to obtain a good space diversity effect even in a fading environment. And the communication performance is good and the usability is good, and the built-in power supply means of the wireless communication device main body and the external power supply means of the binding guide portion are connected to the binding guide portion of the wireless communication device main body. Switching between the presence and absence of the power supply minimizes the consumption of the built-in power supply means , Use the power efficiently, it is an object to provide a radio communication apparatus capable of improving the operation efficiency.

According to a second aspect of the present invention, when the wireless communication apparatus main body is mounted on the binding guide, the power supply voltage supplied from the external power supply means is detected, and the detected power supply voltage is set to a predetermined value. When the voltage drops to the lower limit voltage, switching from the external power supply means to the built-in power supply means suppresses battery consumption of the built-in power supply means, appropriately maintains the operation of the wireless communication device, and further enhances the operation efficiency of the wireless communication device. It is an object to provide a wireless communication device that can be improved.

According to a third aspect of the present invention, when the external power source is charged in the binding guide section, and the wireless communication apparatus main body is attached to the binding guide section,
By providing charging means for charging the built-in power supply means as well, charging can be performed with the built-in power supply means of the main body of the wireless communication device attached to the binding guide portion. It is an object of the present invention to provide a wireless communication device that does not need to be detached and has good usability.

According to a fourth aspect of the present invention, the second monitor signal output means for outputting the electric field strength of the received carrier of the second external antenna is provided in the binding guide section, and the second monitor signal output means is provided by a connection mechanism. By connecting to the antenna switching control means, the wireless communication device main body can be reduced in weight,
A portable device that has a small size, improves the portability of both the binding notebook and the wireless communication device main body, and automatically obtains appropriate communication sensitivity when the wireless communication device body is bound to the binding notebook. It is an object of the present invention to provide an excellent wireless communication device.

[0011]

According to a first aspect of the present invention, there is provided a wireless communication apparatus comprising: a wireless communication apparatus body having a built-in antenna and a communication circuit; A wireless communication device which is detachably mounted via a binding guide portion having a binding hole into which the wireless communication device is inserted, and supplies power to each unit of the wireless communication device main body by a built-in power supply means. A mounting mechanism detachably mounted to the binding guide portion, mounting detection means for detecting mounting of the wireless communication device main body to the binding guide portion by the mounting mechanism, and a predetermined power supply line provided in the binding type notebook A first external antenna connected to the binding guide section through the first external antenna; A second external antenna which is provided at a position of the binding type notebook which forms a space diversity by being equal to or longer than the carrier wavelength / 2 and is connected to the binding guide portion via a predetermined feeder line; When the wireless communication device main body is mounted on the binding guide unit by the mounting mechanism, the wireless communication device main body connects at least the first external antenna and the second external antenna to the wireless communication device main body. A connection mechanism, first antenna switching means for switching and selecting between the first external antenna and the built-in antenna provided on the wireless communication device main body and connected via the connection mechanism, and the first antenna switching means Selectively connected to the first external antenna and the built-in antenna via First monitor signal output means for outputting an electric field intensity monitor signal corresponding to the electric field intensity of the first carrier; and second monitor connected to the second external antenna for outputting an electric field intensity monitor signal corresponding to the electric field intensity of the received carrier. Signal output means, second antenna switching means for selectively switching between the antenna selected by the antenna switching means and the second external antenna among the first external antenna and the built-in antenna and connecting to the communication circuit And when the attachment detecting means detects that the wireless communication device main body is not attached to the binding guide portion, the first antenna switching means selects the built-in antenna, and the second antenna switching means Selecting the built-in antenna selected by the first antenna switching means and connecting to the communication circuit; Detects that the wireless communication apparatus main body is attached to the binding guide, causes the first antenna switching means to select the first external antenna, and outputs the electric field output by the first monitor signal output means. The first and second external antennas selected by the first antenna switching unit based on the intensity monitor signal and the electric field intensity monitor signal output from the second monitor signal output unit have the larger electric field intensity. Antenna switching control means for causing the second antenna switching means to select one of the antennas and connecting to the communication circuit, and supplying power to the wireless communication apparatus main body via the connection mechanism provided in the binding guide section. Power supply means, and the internal power supply means and the external power supply means are selectively selected and used for the wireless communication apparatus main body. A power supply switching means for supplying power to the part, when the mounting detecting means detects that the wireless communication apparatus main body is not mounted on the binding guide unit, to select the internal power supply unit to the power switching means,
When the attachment detection unit detects that the wireless communication device main body is attached to the binding guide unit,
The above object is attained by providing the power supply switching means with power supply switching control means for selecting the external power supply means.

According to the above configuration, the wireless communication device main body having the built-in antenna and the built-in power supply means is detachably attached to the binding notebook through the binding guide portion attached to the binding claw of the binding notebook. At the same time, when the binding type notebook is provided with first and second external antennas at positions where the distance from each other becomes carrier wavelength / 2 or more and forms space diversity, and the wireless communication apparatus main body is attached to the binding guide portion. Switch from the built-in antenna to the first external antenna, and switch between the first external antenna and the second external antenna.
Of the external antennas, the one with the larger electric field strength of the receiving carrier is selected as the antenna used for communication, connected to the communication circuit of the wireless communication device main body, and the wireless communication device main body is connected to the binding guide portion. When attached, the power is supplied by switching from the built-in power supply means to the external power supply means provided in the binding guide section, so that the portability of both the binding notebook and the wireless communication device main body can be improved, When the wireless communication device body is bound to a binding notebook, an appropriate communication sensitivity can be automatically obtained, and a good space diversity effect can be obtained even in a fading environment. Wireless communication device By switching between the internal power supply of the body and the external power supply of the binding guide depending on whether or not the wireless communication device is attached to the binding guide, the consumption of the internal power supply can be suppressed to a minimum and the power supply can be efficiently used. Operating efficiency can be improved.

In this case, for example, as described in claim 2, when the wireless communication device main body is mounted on the binding guide section,
A voltage detection unit for detecting a power supply voltage supplied from the external power supply unit, wherein the power supply switching control unit is configured to switch the power supply when the power supply voltage detected by the voltage detection unit decreases to a predetermined lower limit voltage. The means may select the built-in power supply means.

According to the above configuration, when the wireless communication apparatus main body is attached to the binding guide, the power supply voltage supplied from the external power supply is detected, and the detected power supply voltage is set to the predetermined lower limit voltage. In this case, since the power supply is switched from the external power supply to the built-in power supply, the operation of the wireless communication device can be appropriately maintained while suppressing the battery consumption of the built-in power supply, and the operation efficiency of the wireless communication device can be further improved. Can be improved.

Further, for example, as set forth in claim 3, the binding guide section charges the external power supply means, and the wireless communication device main body is mounted on the binding guide section by the mounting mechanism. And charging means for charging the built-in power supply means via the connection mechanism.

According to the above configuration, the binding guide is provided with charging means for charging the external power supply means and for charging the built-in power supply means when the wireless communication apparatus main body is mounted on the binding guide section. Therefore, charging can be performed with the built-in power supply means of the wireless communication device main body attached to the binding guide portion, and it is not necessary to remove the wireless communication device main body from the binding guide portion for charging each time, thereby improving usability. be able to.

Further, for example, as set forth in claim 4, the second monitor signal output means is provided in the binding guide portion, and the connection mechanism controls the second monitor signal output means to control the antenna switching control. It may be connected to the means.

According to the above configuration, the second monitor signal output means for outputting the electric field strength of the reception carrier of the second external antenna is provided in the binding guide, and the connection mechanism switches the second monitor signal output means to the antenna switching. Since the wireless communication device is connected to the control means, the wireless communication device main body can be reduced in weight and size, and the portability of both the binding notebook and the wireless communication device main body can be improved. In the case where is bound to a binding type notebook, appropriate communication sensitivity can be obtained automatically, and portability can be further improved.

[0019]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. It should be noted that the embodiments described below are preferred embodiments of the present invention, and therefore, various technically preferable limitations are added. However, the scope of the present invention is not limited to the following description. The embodiments are not limited to these embodiments unless otherwise specified.

FIGS. 1 to 5 show an embodiment of a wireless communication apparatus according to the present invention. FIG. 1 shows a portable telephone apparatus 1 to which an embodiment of the wireless communication apparatus according to the present invention is applied. FIG. 2 is an overall configuration diagram.

In FIG. 1, a portable telephone device (wireless communication device) 1 includes a portable telephone device body (wireless communication device body) 2.
And a binding guide 3 to which the mobile phone device main body 2 is detachably attached, and a binding notebook 4 to which the binding guide 3 is detachably attached. Like the binding type notebook, the notebook includes a binding claw 6 for binding the notebook paper 5 and the like. The binding guide portion 3 has a binding hole 7 into which the binding claw 6 is inserted. The binding guide portion 3 is detachably attached to the binding notebook 4 by inserting the binding claw 6 into the binding hole 7.

The binding type notebook 4 has a cover 4
a first external antenna 8 and a second external antenna 9 are attached to the surface of the first external antenna 8 and the second external antenna
The external antenna 9 is provided at the position of the cover 4a of the binding type notebook 4 whose distance is equal to or longer than the carrier wavelength / 2 and forms space diversity. The second external antenna 9 is connected to the power supply line 10,
The feed line 10 connected to the second external antenna 9 is
The power supply line 11 is connected to the external antenna 8. A power supply plug 12 is attached to the end of the power supply line 11, and the power supply plug 12 is detachably inserted into a jack 13 formed on an upper portion of the binding guide 3.

The portable telephone device main body 2 is provided with an operation unit 14, a display unit 15, a speaker 16, a microphone 17, a built-in antenna 18, and the like for inputting various keys such as numeric keys, similarly to a normal portable telephone device. , Used as a normal mobile phone device. The mobile phone device body 2 is shown in FIGS.
As shown in FIG. 3, a fitting groove 19 which is recessed in the vertical direction is formed on the surface on the binding guide portion 3 side, and the fitting groove 19 is fitted on the surface of the binding guide portion 3 on the side of the portable telephone device body 2. A mating projection 20 is formed. Therefore, the mobile phone device main body 2 is detached from the binding guide unit 3 or slid in the direction opposite to the arrow A by sliding in the direction indicated by the arrow A in FIGS. 2 and 3 along the binding guide unit 3. Thereby, it can be attached to the binding guide section 3. The fitting groove 19 and the fitting protrusion 20 as a whole make the mobile phone device body 2
It functions as a mounting mechanism that is detachably mounted on the camera.

As shown in FIG. 3, a stopper groove 21 is formed at the end of the surface of the main body 2 of the portable telephone device 2 on the side of the binding guide 3, and the stopper guide 21 is formed in the binding guide 3. Stopper 2 to be fitted
2 are installed. The stopper 22 is moved in the direction of the mobile phone main body 2 in a state where the mobile phone main body 2 is completely mounted on the binding guide portion 3 so that the stopper 22 fits into the stopper groove 21, and the mobile phone main body 2 is shown in FIG. The movement in the detaching direction indicated by the arrow A in FIG. 2 and FIG. 3 is regulated to prevent the portable telephone device main body 2 from accidentally falling off the binding guide portion 3.

As shown in FIG. 4, the binding guide 3 has a holding portion 3a formed by bending the lower end of the surface on the side of the portable telephone device body 2 toward the portable telephone device body 2. On the upper surface of the holding portion 3a, a convex connector 23 is provided. An engagement recess 2 which engages with the holding portion 3a of the binding guide 3 is provided on an end surface of the lower end surface of the main body 2 on the binding guide 3 side.
The concave connector 24 into which the convex connector 23 is inserted is disposed on a surface of the mating concave portion 2a facing the surface on which the convex connector 23 is provided.
The convex connector 23 is connected to the first external antenna 8 or the second external antenna 8.
It is connected to the external antenna 9 and each circuit provided in the binding guide section 3 described later, and the concave connector 24 has a charging line 25, an external circuit control line 26,
The power supply line 27, the IF-B line 28, the RSSI-B line 29, the antenna feed line 30, and the like are connected. The convex connector 23 and the concave connector 24 function as a connection mechanism.

Further, a leaf switch 31 is provided inside the fitting recess 2a at the lower end of the portable telephone device main body 2, and a penetration hole 32 is provided at a position of the switch tip of the leaf switch 31 in the fitting recess 2a. Are formed. An opposing protrusion 33 is provided at a position of the holding portion 3a of the binding guide portion 3 facing the intrusion hole 32. The opposing protrusion 33 is provided when the mobile phone main body 2 is mounted on the binding guide portion 3, When the concave connector 24 of the mobile phone device main body 2 and the convex connector 23 of the binding guide portion 3 are joined, they enter the entry hole 32 and turn on the leaf switch 31.

One end of the leaf switch 31 is
It is connected to a predetermined power supply voltage (Vcc) via a resistor R, and the circuit switching control unit 55 and the power supply control unit 56
(See FIG. 5), and the other end is grounded. When the leaf switch 31 is off, the leaf switch 31 outputs a high mounting detection signal of a predetermined voltage value in which the power supply voltage (Vcc) is dropped by the resistor R to the circuit switching control unit 55 and the power supply control unit 5.
6 when the switch is turned on, outputs a low ground potential attachment detection signal to the circuit switching control unit 55 and the power supply control unit 56. Therefore, the leaf switch 31 and the opposing protrusion 33
Functions as an attachment detection unit (attachment detection means) 50 shown in FIG. 5, and the attachment detection unit 34 controls the circuit switching control of a high attachment detection signal when the mobile phone device body 2 is not attached to the binding guide unit 3. The mobile phone device main body 2 outputs to the binding guide 3
When the convex connector 23 of the binding guide unit 3 and the concave connector 24 of the mobile phone device body 2 are joined together, the low-level mounting detection signal is sent to the circuit switching control unit 55.
And outputs it to the power control unit 56.

As shown in FIG. 5, the main body 2 of the portable telephone device includes a control circuit 40, a modem unit 41, and a TDMA processing unit 4.
2, voice codec processing unit 43, transmitting high-frequency circuit 4
4. High frequency circuit 45 for receiving system, antenna duplexer 46, changeover switch 47, power supply 48, antenna changeover switch 4
9, a mounting detection unit 50, changeover switches 51 and 52, and the like, and the operation unit 14, a display unit 15, a speaker 16, a microphone 17, and the like. When the headset 53 shown in FIG. 1 is inserted into the head jack 54 provided at the upper part of the mobile phone device main body 2, the speaker 16 and the microphone 17 are switched via the changeover switches 51 and 52. And the headset 53 can be selectively used to make a call.

The control circuit 40 includes a circuit switching control unit 55
The power supply unit 48 includes a voltage detection unit 57, a power supply changeover switch 58, a diode 59, a built-in rechargeable battery (built-in power supply means) 60, and the like.

The charging line 25 is connected to a power supply unit 48, particularly a diode 59, and is connected to the external circuit control line 26.
Are connected to the control circuit 40. Further, the power supply line 27 is connected to a power supply unit 48, in particular, a voltage detection unit 57, and the IF-B line 28 is connected to a terminal b of a changeover switch 47. Further, the RSSI-B line 2
9 is connected to the control circuit 40, particularly to the circuit switching control unit 55, and the antenna line 30 is connected to the terminal t3 of the antenna switching switch.

The binding guide section 3 includes a high-frequency receiving circuit 70, an external power supply section 71, a DC supply connector 72, and the like. The external power supply section 71 includes an external rechargeable battery 73, a charging circuit 74, and the like. ing.

The receiving system high-frequency circuit (second monitor signal output means) 70 is connected to the external circuit control line 26 from the control circuit 40.
, An external circuit control signal is input thereto, and the receiving high-frequency circuit 70 is connected to the second external antenna 9.
The receiving high-frequency circuit 70 operates based on the external circuit control signal, converts the frequency of the received signal received by the second external antenna 9 by mixing it with the local oscillation signal, and then converts the intermediate frequency IF- B received signal from connector 2
Changeover switch 47 via 3, 24 and IF-B line 28
To the terminal b. Further, the reception system high-frequency circuit 70
It operates based on the external circuit control signal, and transmits an electric field intensity monitor signal RSSI-B corresponding to the electric field intensity of the received carrier of the received signal input from the second external antenna 9 to the connectors 23 and 24 and the RSSI-B line. The signal is output to the circuit switching control unit 55 of the control circuit 40 via the control circuit 29.

An external circuit control signal is input to the external rechargeable battery (external power supply means) 73 from the control circuit 40 via the external circuit control line 26. It operates based on the signal to supply power to the receiving high-frequency circuit 70 and
4. Power supply unit 48 via power supply line 27 and voltage detection unit 57
The power supply switch 58 is connected to a terminal a of the power supply switch 58, and supplies power to each unit of the portable telephone device main body 2 via the power supply switch 58.

The charging circuit 74 includes a DC supply connector 72
The charging circuit 74 is connected to the external rechargeable battery 73 and has the connectors 23 and 24 and the charging line 25.
And a terminal 59 of a built-in battery 60 and a power switch 58 via a diode 59. Charging circuit 74
Charge the external rechargeable battery 73 with the DC power supplied through the DC supply connector 72, charge the built-in rechargeable battery 60, and, in accordance with the setting of the power switch 58, the mobile phone main body 2 Supply power to each part of.
Therefore, the connectors 23 and 24, the charging line 25, the diode 59, the DC supply connector 72, and the charging circuit 74
Function as charging means as a whole.

The control circuit 40 of the portable telephone device body 2 controls each part of the portable telephone device body 2 to perform an operation process as the portable telephone device body 2 and also controls the operation unit 14 and the display unit 15. The key input from the operation unit 14 is acquired, processing corresponding to the key input is performed, and the content of the key input and various information notified from the mobile phone device body 2 to the user of the mobile phone device body 2 are displayed. It is displayed on the unit 15. Further, when the reception high-frequency circuit 45 or the reception high-frequency circuit 70 detects an incoming signal received via the built-in antenna 18, the first external antenna 8, or the second external antenna 9, the control circuit 40 performs an incoming process. Let it do.

Further, as described above, the control circuit 40
A circuit switching control unit (antenna switching control means) 55;
The circuit switching control unit 55 outputs a high attachment detection signal indicating that the external antennas 8 and 9 are not attached from the attachment detection unit 50, that is, that the mobile phone device body 2 is not attached to the binding guide unit 3. Is input, the reception IF switching control signal CS for selecting the reception high-frequency circuit 45 to which the reception signal from the built-in antenna 18 is input.
Is output to the changeover switch 47, and an antenna changeover control signal for connecting the terminal t1 to the terminal 2 is output to the antenna changeover switch 49, so that the external antennas 8, 9 are mounted from the mounting detection unit 50, that is, When a row mounting detection signal indicating that the mobile phone device body 2 is mounted on the binding guide unit 3 is input,
An antenna changeover control signal for connecting the terminal t1 to the terminal t3 is output to the antenna changeover switch 49, and an electric field intensity monitor signal RS corresponding to the electric field intensity of the reception carrier inputted from the reception high frequency circuit 45, as described later.
An electric field strength monitor signal RSS corresponding to the electric field strength of SI-A and the reception carrier inputted from the reception system high frequency circuit 70
IB at regular intervals, and the external antennas 8 and 9 with the higher level of the field strength monitor signal RSSI
Is a used antenna, and the reception IF signal switching control signal CS for connecting the terminal c to the terminal a or the terminal b of the changeover switch 47 to which the determined used antenna is connected.
Is output to the changeover switch 47.

An antenna changeover switch (first antenna changeover means) 49 is an electronic analog switch having terminals t1 to t3, and a built-in antenna 18 is connected to a terminal t2.
However, the terminal t3 has the antenna feed line 30 and the connector 2
The first external antenna 8 is connected via the terminals 3 and 24, and the antenna duplexer 46 is connected to the terminal t1.
The antenna changeover switch 49 operates according to an antenna changeover control signal input from the circuit changeover control unit 55 of the control circuit 40, and switches and connects the terminal t1 which is a common terminal to the terminal 2 and the terminal 3. That is, the antenna changeover switch 49 operates according to the antenna changeover control signal from the circuit changeover control section 55, and when the mobile phone device main body 2 is not mounted on the binding guide section 3, the terminal connected to the antenna duplexer 46 is connected. When t1 is connected to a terminal t2 connected to the built-in antenna 18 and the mobile phone main body 2 is attached to the binding guide 3, the terminal t1 is connected from the terminal t2 to the terminal t3 connected to the first external antenna 8. Switch and connect.

The receiving system high-frequency circuit (first monitor signal output means) 45 is selectively connected to the built-in antenna 18 and the first external antenna 8 via an antenna duplexer 46 and an antenna changeover switch 49. After the frequency of the received signal received by 18 or the first external antenna 8 is converted by mixing with the local oscillation signal, the received signal of the intermediate frequency IF-A is output to the terminal a of the changeover switch 47. Further, the reception high-frequency circuit 45 receives a signal input from the built-in antenna 18 or the first external antenna 8 connected via the antenna sharing device 46 and the antenna changeover switch 49, in particular, from the first external antenna 8. An electric field strength monitor signal RSSI-A corresponding to the electric field strength of the received carrier of the input received signal is output to the circuit switching control unit 55 of the control circuit 40.

The circuit switching control unit 55 compares the electric field strength monitor signal RSSI-A input from the receiving high-frequency circuit 45 with the electric field strength monitor signal RSSI-B input from the receiving high-frequency circuit 70, as described above. Then, of the first external antenna 8 and the second external antenna 9, the one having the higher level of the field strength monitor signal RSSI is determined as the used antenna, and the switch 47 is connected to the determined used antenna. A receiving IF signal switching control signal CS for connecting the terminal c to the terminal a or the terminal b
Output to

Changeover switch (second antenna changeover means) 4
7, a terminal a receives a reception signal of the intermediate frequency IF-A from the reception system high-frequency circuit 45, and a terminal b thereof receives a reception signal of the intermediate frequency IF-B from the reception system high-frequency circuit 70.
Each terminal is input, and its terminal c is connected to the modem unit 41. The changeover switch 47 switches the terminal c between the terminal a and the terminal b according to the reception IF switching control signal CS from the circuit switching control unit 55 of the control circuit 40 and connects the terminal c to the intermediate frequency IF-A from the reception high-frequency circuit 45. Of the received signal of the intermediate frequency IF-B from the receiving system high-frequency circuit 70 and a switching operation to output the received signal to the modem unit 41 as the received signal of the intermediate frequency IF.

The modem section 41 demodulates the intermediate frequency IF reception signal input from either the reception high-frequency circuit 45 or the reception high-frequency circuit 70 via the changeover switch 47, and performs a TDMA processing section 42. Output to

TDMA (Time Division Multiple Acces)
s) The processing unit 42 extracts a slot at a predetermined timing from the data (frame) demodulated by the modem unit 41, cancels scrambling or the like for eavesdropping, and then extracts configuration data from the format of this slot. The control data is sent to the control circuit 40 from the extracted configuration data, and the audio data is sent to the audio codec processing unit 43.
Transfer to

The speech codec processing unit 43 performs a digital speech data decompression process, more specifically, a digital speech data decoding process according to an ADPCM method using adaptive prediction and adaptive quantization, and a PCM (Pulse Code Code).
Modulation), the PCM converts the PCM audio signal into an analog audio signal, and outputs the loudspeaker from the speaker 16 or the headset 53 via an amplifier and a changeover switch 52 (not shown).

The audio codec processing section 43 converts an analog audio signal input from the microphone 17 or the headset 53 via the changeover switch 51 into a digital audio signal by PCM to obtain a PCM audio signal. The signal is compressed by encoding it into ADPCM audio data, and output to the TDMA processing unit 42.

The TDMA processing unit 42 creates a slot by adding control data to the audio data transferred from the audio codec processing unit 43, performs scrambling, and inserts the slot into the frame at a predetermined timing. ,
The data is transferred to the modem unit 41, modulated by the modem unit 41, and output to the transmission high-frequency circuit 44.

The transmitting high-frequency circuit 44 converts the frequency of the modulated wave input from the modem unit 41 based on the baseband transmission signal input from the control circuit 40 via the modem unit 41, and Output to the built-in antenna 18 or the first external antenna 8 via the antenna changeover switch 49,
The signal is transmitted from the external antenna 8. The modem section 41,
The TDMA processing unit 42, the audio codec processing unit 43, the transmission high-frequency circuit 44, the reception high-frequency circuit 45, the reception high-frequency circuit 70, and the antenna duplexer 46 function as a communication circuit as a whole.

As described above, the power supply section 48 includes the voltage detection section 57, the power supply changeover switch 58, the diode 59, the built-in rechargeable battery 60, and the like. The built-in rechargeable battery 60 includes a diode 59, a charging line 25, and connectors 23, 2 when the mobile phone device body 2 is mounted on the binding guide 3.
4, is connected to the charging circuit 74 of the binding guide unit 3 via the charging circuit 74, and is charged by the charging circuit 74. The power supply changeover switch 58 includes terminals a and b. The terminal a is connected to the external rechargeable battery 73 of the binding guide unit 3 via the voltage detection unit 57 and the connectors 23 and 24, and the terminal b is connected to the internal rechargeable battery. While being connected to the battery 60, it is connected to the charging circuit 74 of the binding guide unit 3 via the diode 59 and the connectors 23 and 24, and the terminal c is connected to each unit of the mobile phone device main body 2 that supplies power. . Then, the voltage detecting section (voltage detecting means) 57 detects the power supply voltage supplied from the external rechargeable battery 73 of the binding guide section 3 and outputs it to the power control section 56.

The power supply 48 is supplied from a power supply control unit 56 of the control circuit 40 to a power supply changeover switch 58 in accordance with the state of attachment / non-attachment to the binding guide unit 3 of the portable telephone device body 2.
The power supply changeover switch 58 performs a switching operation based on the power supply unit control signal PC input to the power supply unit control signal PC, and the external rechargeable battery 73 attached to the binding guide unit 3 or the built-in rechargeable battery 60 in the power supply unit 48 or DC supply connector 7
The power is supplied to each section of the portable telephone device main body 2 by switching between the external power supplied through the external power supply 2. That is, when the low mounting detection signal is input from the mounting detecting section 50, the power supply control section 56 of the control circuit 40
Is determined to be attached to the binding guide section 3,
The power supply switch 58 outputs a power supply switching control signal PC for connecting the terminal c to the terminal a, and when a high mounting detection signal is input from the mounting detecting section 50, the mobile phone device main body 2 sets the binding guide section 3 And outputs a power source switching control signal PC for causing the power source switch 58 to connect the terminal c to the terminal b.

Further, a power supply control section (power supply switching control means) 5
Reference numeral 6 denotes the binding guide unit 3
When the terminal c of the power switch 58 is connected to the terminal a and power is supplied to each part of the mobile phone main body 2 by the external rechargeable battery 73, the voltage detector 57 detects the power. When the power supply voltage decreases to the predetermined lower limit voltage, it is determined that the remaining amount of the external rechargeable battery 73 has decreased, and the power supply control signal PC that switches the terminal c from the terminal a to the terminal b and connects to the power switch 58. Is output, and power is supplied to each section of the portable telephone device main body 2 by an external power supply supplied from the built-in rechargeable battery 60 or the DC supply connector 72, thereby providing a stable power supply.

Next, the operation of the present embodiment will be described. The mobile phone device 1 is configured such that the mobile phone device main body 2 is detachably mounted on the binding notebook 4 so that the binding notebook 4 is attached.
The portable telephone device main body 2
Is attached to the binding notebook 4, the built-in antenna 18 of the mobile phone main body 2 is switched to the first external antenna 8 and the second external antenna 9 provided in the binding notebook 4, and the first external antenna is switched. Of the external antenna 8 and the second external antenna 9, the external antenna 8, 9 having the larger electric field strength of the receiving carrier is automatically switched to realize appropriate communication (reception) sensitivity, and the binding guide unit is provided. The power supply is switched between the built-in rechargeable battery 60 and the external rechargeable battery 73 in accordance with the mounting / non-mounting state of the mobile phone device main body 2 to the mobile phone 3 to effectively use the power supply.

That is, as shown in FIG. 1, the portable telephone device 1 inserts the binding claw 6 of the binding type notebook 4 into the binding hole 7 of the binding guide unit 3 to put the binding guide unit 3 into the binding type notebook 4. When the power supply plug 12 is attached and inserted into the jack 13 of the binding guide 3, the first external antenna 8 and the second external antenna 9 provided on the surface of the cover 4a of the binding notebook 4 are connected to the binding guide 3. It is connected to the convex connector 23 of the binding guide 3 via an internal power supply line.

In this state, the fitting groove 19 of the portable telephone device main body 2 is inserted into the fitting projection 20 of the binding guide portion 3, and the portable telephone device main body is inserted into the binding guide portion 3 as shown in FIGS. 2 and the stopper 22 of the binding guide unit 3 is
When the mobile phone device is slid to the side, the mobile phone device main body 2 can be securely attached to the binding guide portion 3, and as shown in FIG. 4, the convex connector 23 provided on the holding portion 3 a of the binding guide portion 3. Is a concave connector 24 provided in the fitting concave portion 2a of the mobile phone device body 2.
And the receiving high-frequency circuit 70 and the external power supply 71 provided in the first external antenna 8 and the second external antenna 9 and the binding guide unit 3 are connected to the mobile phone device main body 2.
Connected to.

When the portable telephone device body 2 is not attached to the binding notebook 4, the attachment detecting section 50 outputs a high attachment detection signal indicating that the portable telephone device body 2 is not attached to the circuit switching control. The circuit switching control unit 55 outputs an antenna switching control signal for connecting the terminal t1 to the terminal t2 to the antenna switching switch 49, and outputs the signal to the antenna switching switch 49.
IF switching control signal C for connecting terminal c to terminal a
S, the antenna changeover switch 49 connects the terminal t1 connected to the antenna duplexer 46 to the terminal t2 connected to the built-in antenna 18 and switches the changeover switch 4
7 connects the connected terminal a of the receiving system high-frequency circuit 34 connected to the antenna duplexer 46 to the terminal c connected to the modem unit 41.

Therefore, in the main body 2 of the portable telephone device, the built-in antenna 18 is connected to the receiving high-frequency circuit 45 via the antenna changeover switch 49,
Is connected to the modem unit 41 via the changeover switch 47. As a result, when the portable telephone device main body 2 is not attached to the binding type notebook 4, the built-in antenna 1
8 can be used for appropriate communication.

The power control unit 56 of the control circuit 40
The portable telephone device main body 2 is not attached to the binding type notebook 4 and the attachment detecting section 50 detects that the portable telephone device main body 2 is not attached.
When a high attachment detection signal indicating that the battery is not attached is input, a power supply control signal for connecting the terminal c to the terminal b connected to the built-in rechargeable battery 60 to the power supply switch 58 of the power supply unit 48 PC is output and power switch 58
Connects the terminal c to the terminal b connected to the built-in rechargeable battery 60.

Therefore, the portable telephone device main body 2 is supplied with power from the built-in rechargeable battery 60 via the power supply changeover switch 58, and can appropriately perform a communication operation.

Thereafter, the portable telephone device main body 2 is attached to the binding guide section 3 of the binding type notebook 4, and
When the convex connector 23 is inserted into the concave connector 24,
The opposing projection 33 of the binding guide part 3 penetrates into the intrusion hole 32 of the mobile phone device main body 2 and the leaf switch 3
1 is turned on, and the attachment detection unit 50 outputs a low attachment detection signal indicating that the mobile phone device body 2 is attached to the binding guide unit 3 to the circuit switching control unit 55 and the power supply control unit 56.

When a low mounting detection signal is input from the mounting detecting section 50, the circuit switching control section 55 determines that the portable telephone device main body 2 is mounted on the binding guide section 3, and connects the terminal to the antenna switching switch 49. An antenna switching control signal for switching t1 from the terminal t2 to the terminal t3 for connection is output, and the first external antenna 8 is connected to the reception high-frequency circuit 45 via the antenna switching switch 49 and the antenna duplexer 46; The electric field strength monitor signal RSSI-A input from the receiving high-frequency circuit 45 connected to the first external antenna 8 and the connectors 23 and 2
4 and receiving system high-frequency circuit 7 via RSSI-B line 29
A field strength monitor signal RSSI-B input from 0;
Are constantly compared at a predetermined cycle, and the electric field strength monitor signal RSS
The external antennas 8 and 9 having the larger I level are determined as the antennas to be used for reception, and are connected to the receiving system high-frequency circuit 45 to which the received signal of the first external antenna 8 which is the determined antenna is input. Changeover switch 47
A receiving IF for connecting a terminal c connected to the modem section 41 to a terminal a of the changeover switch 47 connected to a receiving system high-frequency circuit 70 to which a received signal of the second external antenna 9 is input. The changeover control signal CS is output to the changeover switch 47. The changeover switch 47 connects the terminal c to the terminal a or the terminal b according to the reception IF switching control signal CS.

Therefore, the portable telephone device main body 2 is mounted on the binding notebook 4, and the built-in antenna 18 is covered by the cover 4a of the binding notebook 4, etc., and the electric field received by the built-in antenna 18 is radiated into the air. Even when the communication capacity decreases due to the decrease in antenna power,
When the mobile phone device main body 2 is attached to the binding guide 3 of the binding notebook 4, the built-in antenna 18 is provided.
To the first external antenna 8 and the first external antennas 8 provided at positions where mutual space diversity is formed.
Of the external antenna 8 and the second external antenna 9, the antenna used for reception is automatically switched to the antenna having the larger electric field strength of the received carrier, so that the communication capability can be prevented from being reduced. That is, usually, when the mobile phone device body 2 is attached to the binding notebook 4 and the binding notebook 4 is closed,
In many cases, a call is not carried out by the mobile phone device main body 2 but carried by the user. Even in such a standby state, the mobile phone device main body 2 performs position registration with a partner station (base station). Therefore, transmission and reception are always performed intermittently, and when the mobile phone device body 2 is covered with the cover 4a of the binding notebook 4, the received electric field strength and the antenna power radiated into the air are reduced. As a result, proper location registration cannot be performed, and the communication capability is reduced.
Also, the mobile phone device body 2 is
The portable telephone device body 2 is used in a state where the portable telephone device body 2 is mounted on the portable telephone device. When the mobile phone device main body 2 is mounted on the binding guide 3 of the binding type notebook 4, the mobile phone device 1 switches the built-in antenna 18 to the first external antenna 8, and switches between the first external antenna 8 and the first external antenna 8. The antenna is automatically switched to the antenna of the second external antenna 9 having the larger electric field strength of the reception carrier, and the sensitivity compensation and the output are appropriately performed without performing the gain control of the transmission system high-frequency circuit 44 and the reception system high-frequency circuit 45. Make compensation,
It is possible to prevent a decrease in communication capability, and to obtain good communication sensitivity.

The first external antenna 8 and the second external antenna 9 are provided at the position of the cover 4a of the binding notebook 4 which forms a space diversity with each other.

Therefore, the first external antenna 8 and the second
Of the external antennas 9, it is possible to always select the antenna having the better reception sensitivity for communication, and the intensity of the received electric field varies with time due to the effect of the state of the medium serving as a radio wave path. A good diversity effect can be obtained even in a fading environment, particularly in a Rayleigh fading environment where the temporal probability distribution of the electric field strength is approximated by a Rayleigh distribution. As a result, the reception sensitivity of the mobile phone device main body 2 can be further improved, and the communication quality can be further improved.

Further, the power supply controller 56 of the control circuit 40
When a low attachment detection signal is input from the attachment detection unit 50, the mobile phone device body 2
And outputs a power supply control signal PC for switching the terminal c from the terminal b to the terminal a and connecting the terminal c to the power switch 58, and the power switch 58
Is switched from the terminal b to the terminal a and connected.

Accordingly, the portable telephone device main body 2 is supplied with power by switching from the internal rechargeable battery 60 to the external rechargeable battery 73 provided in the binding guide section 3, thereby preventing the internal rechargeable battery 60 from being consumed. Effective use of the built-in rechargeable battery 60 can be achieved.

When power is supplied from the external rechargeable battery 73 to the portable telephone device main body 2, the voltage detector 57 detects the power supply voltage supplied from the external rechargeable battery 73 when the external rechargeable battery 73 supplies power. When the voltage of the external rechargeable battery 73 detected by the power detection unit 57 decreases to a predetermined lower limit voltage, the remaining amount of the external rechargeable battery 73 is reduced. When it is determined that the voltage has dropped, a power supply control signal PC for connecting the terminal c by switching the terminal c from the terminal a to the terminal b is output to the power switch 58.

The power switch 58 switches the terminal c from the terminal a
To the terminal b and connect to the mobile phone 2
Are connected by switching from the external rechargeable battery 73 to the internal rechargeable battery 60. Therefore, when the remaining amount of the external rechargeable battery 73 decreases, power can be appropriately supplied from the internal rechargeable battery 60 to each section of the mobile phone device main body 2, and the communication function of the mobile phone device main body 2 is appropriately maintained. be able to.

The portable telephone device 1 can charge only the external rechargeable battery 73 via the DC supply connector 72 without attaching the portable telephone device main body 2 to the binding guide portion 3. Mobile phone device body 2
Can be simultaneously charged via the DC supply connector 72 to both the external rechargeable battery 73 and the built-in rechargeable battery 60 while the battery pack is attached to the binding guide section 3.

As described above, according to the present embodiment, the portability of both the binding type notebook 4 and the portable telephone device main body 2 can be improved, and the portable telephone device body 2 can be bound to the binding type notebook 4. In this case, an appropriate communication sensitivity can be obtained automatically, and even in a fading environment, a good space diversity effect can be obtained, and the communication performance is good, and the usage is good. Be able to
The built-in rechargeable battery 60 of the mobile phone device main body 2 and the external rechargeable battery 73 of the binding guide portion 3 are switched depending on whether or not the rechargeable battery 73 is mounted on the binding guide portion 3 of the mobile phone device main body 2, thereby minimizing the consumption of the built-in rechargeable battery 60. And the operating efficiency can be improved by using the power supply efficiently.

When the portable telephone device main body 2 is mounted on the binding guide 3, the external rechargeable battery 73 is
Power supply voltage supplied from the external rechargeable battery 73 when the detected power supply voltage falls to a predetermined lower limit voltage.
Is switched to the built-in rechargeable battery 60, the mobile phone device 1 can be appropriately operated while suppressing the battery consumption of the built-in rechargeable battery 60, and the operation efficiency of the mobile phone device 1 is further improved. be able to.

Further, the binding guide unit 3 is provided with a charging circuit 74 for charging the external rechargeable battery 73 and also charging the built-in rechargeable battery 60 when the portable telephone device body 2 is mounted on the binding guide unit 3. So
The battery can be charged while the built-in rechargeable battery 60 of the mobile phone device 2 is attached to the binding guide portion 3, and it is not necessary to remove the mobile phone device main body 2 from the binding guide portion 3 for charging each time. Can be improved.

A receiving high-frequency circuit 70 for outputting the electric field strength of the receiving carrier of the second external antenna 9 is provided in the binding guide section 3, and the receiving high-frequency circuit 70 is connected via the connectors 23 and 24 to a circuit switching circuit. 55, the portable telephone device body 2 can be made lightweight and small, and the portability of both the binding notebook 4 and the portable telephone device body 2 can be improved. Binding the telephone device body 2 to the binding notebook 4
In the case where the binding is performed, appropriate communication sensitivity can be automatically obtained, and portability can be further improved. As described above, the invention made by the present inventor has been specifically described based on the preferred embodiments. However, the present invention is not limited to the above, and can be variously modified without departing from the gist thereof. Needless to say.

For example, in each of the above embodiments, the case where the present invention is applied to a portable telephone device has been described. However, it goes without saying that the wireless communication device is not limited to the portable telephone device.

[0072]

According to the wireless communication apparatus of the first aspect of the present invention, the binding type notebook is provided with the built-in antenna and the built-in power supply means via the binding guide portion attached to the binding claw of the binding type notebook. The wireless communication device body is detachably mounted, and first and second external antennas are provided at positions where the distance from each other becomes carrier wavelength / 2 or more and space diversity is formed in the binding type notebook. When the device body is attached to the binding guide portion, the built-in antenna is switched to the first external antenna, and among the first external antenna and the second external antenna,
The external antenna with the larger electric field strength of the receiving carrier is selected as the antenna used for communication, connected to the communication circuit of the wireless communication device main body, and built-in when the wireless communication device main body is attached to the binding guide portion. Since the power is supplied by switching from the power supply unit to the external power supply unit provided in the binding guide unit, the portability of both the binding notebook and the wireless communication device body can be improved, and the wireless communication device body can be bound. When binding to a notebook, appropriate communication sensitivity can be obtained automatically, and also in a fading environment, a good space diversity effect can be obtained. It is possible to improve the quality of the wireless communication device. By switching the external power supply means of the binding guide unit depending on whether or not it is attached to the binding guide unit of the wireless communication device main body, it is possible to minimize the consumption of the built-in power supply means, and to efficiently use the power supply, Operation efficiency can be improved.

According to the second aspect of the present invention, when the main body of the wireless communication apparatus is mounted on the binding guide, the power supply voltage supplied from the external power supply means is detected, and the detection is performed. When the power supply voltage falls to a predetermined lower limit voltage, the external power supply is switched to the internal power supply, so that the operation of the wireless communication apparatus can be appropriately maintained while suppressing the battery consumption of the internal power supply, and The movable efficiency of the communication device can be further improved.

According to the third aspect of the present invention, the external power supply is charged in the binding guide section, and when the wireless communication apparatus main body is mounted on the binding guide section, the internal power supply section is also activated. Since charging means for charging is provided, charging can be performed with the built-in power supply means of the wireless communication device main body attached to the binding guide portion, and it is necessary to remove the wireless communication device main body from the binding guide portion for charging each time Therefore, the usability can be improved.

According to the fourth aspect of the present invention, the second monitor signal output means for outputting the electric field strength of the reception carrier of the second external antenna is provided in the binding guide section, and the second monitor signal output means is provided by the connection mechanism. (2) Since the monitor signal output means is connected to the antenna switching control means, the body of the wireless communication device can be made lightweight and small, and the portability of both the binding notebook and the body of the wireless communication device can be improved. In addition, when the wireless communication device body is bound to a binding notebook, appropriate communication sensitivity can be automatically obtained, and portability can be further improved.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a mobile phone device to which a first embodiment of a wireless communication device according to the present invention is applied.

FIG. 2 is an enlarged perspective view of the upper part of the mobile phone device main body of FIG. 1 in a state where it is mounted on a binding guide unit.

FIG. 3 is an upper enlarged perspective view showing a state in which the main body of the mobile phone device of FIG. 1 is detached from a binding guide.

FIG. 4 is an enlarged perspective view of a convex connector portion of the binding guide portion of FIG. 1 and a concave connector portion of the mobile phone device main body.

FIG. 5 is a circuit configuration diagram of the mobile phone device main body of FIG. 1, a binding guide unit, and an external antenna.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 mobile phone device 2 mobile phone device main body 2 a fitting recess 3 binding guide portion 3 a holding portion 4 binding type notebook 4 a cover 5 notebook paper 6 binding claw 7 binding hole 8 first external antenna 9 second external antenna 10 power supply line 11 Power supply line 12 Power supply plug 13 Jack 14 Operation unit 15 Display unit 16 Speaker 17 Microphone 18 Built-in antenna 19 Fitting groove 20 Fitting protrusion 21 Stopper groove 22 Stopper 23 Convex side connector 24 Concave side connector t1 to t3 terminal 25 Charging line 26 External circuit Control line 27 Power line 28 IF-B line 29 RSSI-B line 30 Antenna feed line 31 Leaf switch 32 Penetration hole 33 Opposing protrusion 40 Control circuit 41 Modem unit 42 TDMA processing unit 43 Voice codec processing unit 44 Transmission system high frequency Circuit 45 Reception system high-frequency circuit 46 Antenna duplexer 47 Changeover switch 48 Power supply unit 49 Antenna changeover switch 50 Mounting detection unit 51, 52 Changeover switch 53 Headset 54 Head jack 55 Circuit changeover control unit 56 Power supply control unit 57 Voltage detection unit 58 Power supply Changeover switch 59 Diode 60 Built-in rechargeable battery 70 Reception system high-frequency circuit 71 External power supply unit 72 DC supply connector 73 External rechargeable battery 74 Charging circuit a to c terminals

Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04B 7/26 H04B 7/26 L H04Q 7/14 W

Claims (4)

[Claims] 1. A wireless communication apparatus main body having a built-in antenna and a communication circuit is attached to and detached from a binding type notebook having a cover and a binding claw via a binding guide having a binding hole into which the binding claw is inserted. A wireless communication device that is removably mounted and supplies power to each unit of the wireless communication device main body by built-in power supply means, wherein the mounting mechanism detachably mounts the wireless communication device main body on the binding guide unit; Mounting detection means for detecting the mounting of the wireless communication apparatus main body to the binding guide by a mechanism, and a first external antenna provided in the binding notebook and connected to the binding guide via a predetermined power supply line And the first external antenna and the carrier wavelength / 2 or more, and space diversity A second external antenna provided at a position of the binding type notebook to be formed and connected to the binding guide via a predetermined feed line; and the wireless communication device provided at the binding guide and the wireless communication device main body. A connection mechanism for connecting at least the first external antenna and the second external antenna to the wireless communication device main body when the main body is mounted on the binding guide portion by the mounting mechanism; and a connection mechanism provided on the wireless communication device main body. First antenna switching means for switching and selecting between the first external antenna and the built-in antenna connected via the connection mechanism; and the first external antenna and the built-in antenna via the first antenna switching means. Outputs an electric field strength monitor signal that is selectively connected to the antenna and corresponds to the electric field strength of the received carrier (1) monitor signal output means, second monitor signal output means connected to the second external antenna for outputting an electric field strength monitor signal corresponding to the electric field strength of a received carrier, the first external antenna and the built-in antenna A second antenna switching means for selectively switching between the antenna selected by the antenna switching means and the second external antenna and connecting to the communication circuit; When it is detected that the antenna is not mounted on the guide portion, the first antenna switching means selects the built-in antenna, and the second antenna switching means selects the built-in antenna selected by the first antenna switching means. Connected to the communication circuit, and the attachment detecting means is configured such that the wireless communication device main body is connected to the binding guide unit. When it is detected that the antenna is mounted, the first antenna switching means selects the first external antenna, and the electric field strength monitor signal output from the first monitor signal output means and the second monitor signal output means Based on the output electric field strength monitor signal, the antenna with the larger electric field strength is selected as the second antenna switching means from the first external antenna and the second external antenna selected by the first antenna switching means. Antenna switching control means for connecting to the communication circuit, an external power supply means provided in the binding guide section for supplying power to the wireless communication apparatus main body via the connection mechanism, the internal power supply means and the external power supply means. Power supply switching means for selectively selecting an external power supply means and supplying power to each section of the wireless communication apparatus main body; Wherein the wireless communication apparatus main body detects that is not yet attached to the binding guide unit, to select the internal power supply unit to the power switching means,
When the attachment detection unit detects that the wireless communication device main body is attached to the binding guide unit,
A wireless communication device comprising: a power supply switching control unit that causes the power supply switching unit to select the external power supply unit. 2. The wireless communication apparatus main body further comprises: voltage detection means for detecting a power supply voltage supplied from the external power supply means when the wireless communication apparatus main body is mounted on the binding guide. 2. The wireless device according to claim 1, wherein the power supply switching control means causes the power supply switching means to select the built-in power supply means when the power supply voltage detected by the voltage detection means drops to a predetermined lower limit voltage. Communication device. 3. The binding guide section charges the external power supply means, and when the wireless communication device main body is mounted on the binding guide section by the mounting mechanism, the built-in power supply via the connection mechanism. 3. The wireless communication device according to claim 1, further comprising a charging unit that charges the unit. 4. The apparatus according to claim 1, wherein said second monitor signal output means is provided on said binding guide section, and said connection mechanism connects said second monitor signal output means to said antenna switching control means. The wireless communication device according to claim 1.