JP4471391B2 - Communication terminal device - Google Patents

Description

  The present invention is mounted on a moving body such as a vehicle such as a business vehicle, a train, a ship, etc., and calls such as a moving body and its own office, a sales office or a control room that controls the moving body, an emergency contact, or a call center. The present invention relates to a communication terminal device that enables voice communication with a center, which is a destination, and enables information such as position information of a moving body and state data of the moving body to be transmitted to the center.

  Communication terminal devices used in emergencies are mounted on vehicles including automobiles for business use such as automobiles. When an emergency such as an accident occurs in the vehicle, these situations are voiced to the center via the telecommunications carrier's base station. In various cases, various methods have been proposed and put into practical use.

2. Description of the Related Art Conventionally, as one of emergency communication terminal devices, one that includes a handset telephone that performs dialing, incoming call, and voice call is known (see Patent Document 1).
When an emergency such as a traffic accident occurs in a vehicle equipped with this type of communication terminal device, the vehicle user presses an emergency call transmission button provided on the communication terminal device. Along with this, the control unit recognizes that an emergency call transmission request has been made, makes a call request to the emergency call center using the telephone number of the emergency call center, and communicates between the emergency call center and the communication terminal device. Establish a circuit. If the communication terminal device recognizes that it is in a voice call mode with the emergency call center, connect the handset phone to the communication control unit of the communication terminal device so that the call can be made to the emergency call center through the handset phone. Then, use the handset phone to make a voice call with the center.
Further, when the handset telephone is not used, a transmission / reception signal to the handset telephone is cut off, and vehicle information such as vehicle position information is transmitted to the emergency call center.
Japanese Patent No. 3298865

  However, since the conventional communication terminal device as described above uses a handset phone for voice calls with the emergency call center, in order to stably hold the handset when the handset phone is not used, It is necessary to provide a dedicated installation part formed in accordance with the outer shape on the instrument panel, floor / console box, etc. of the vehicle. This complicates the instrument panel and floor / console box, and increases costs.

  In addition, since the emergency call transmission button in the conventional communication terminal device is provided on the terminal device body, when making an emergency call to the emergency call center, check the location of the terminal device body and the position of the emergency call transmission button one by one. However, it is necessary to push the emergency call transmission button while the operation of the emergency call transmission button becomes complicated, and it is easy to cause trouble such as hooking off the handset without pushing the emergency call transmission button in an emergency. There was a problem that the burden on the driver was heavy.

  The present invention has been made to solve such a conventional problem, and further uses only a push-to-talk type microphone that is used wirelessly so that it can be used as a normal communication means. The purpose is to provide a communication terminal device that enables outgoing calls to and voice calls with a center, simplifies these call operations, and can greatly reduce the burden on persons who operate mobile objects. And

  In order to achieve the above object, the invention according to claim 1 is a communication terminal device mounted on a vehicle or other mobile body and capable of making a voice call between the mobile body and a center which is a call destination, A push-to-talk type microphone set that includes a microphone and a speaker, and a switch connected in series to the microphone, and is in a transmission state when the switch is turned on and in a reception state when the switch is turned off; Amplifies and demodulates a signal received from the antenna and the center received by the transmission / reception antenna, outputs the signal to the speaker, and modulates an audio signal picked up by the microphone as the switch is turned on into a transmission signal. A cellular phone unit that amplifies the transmission output to be transmitted as radio waves from the transmitting / receiving antenna, and the cellular phone A control unit that controls and manages the entire terminal device including the knit, a storage unit that is connected to the control unit and stores at least the telephone number of the center, and detects whether or not the switch is pushed. A detection unit that outputs a detection signal each time the push operation is performed, and the control unit is intermittently interrupted within a predetermined time and a duration of the detection signal output from the detection unit in accordance with the push operation of the switch. The number of the detection signals to be output is detected, and a call start command is generated when it is determined that the duration of the detection signal is a predetermined time or the number of the detection signals is a predetermined value. Based on the call start command, the call processing is performed to the center corresponding to the telephone number of the storage unit, and the mobile phone unit is set to a voice call mode to set the center. And the duration of the detection signal is different from that of the predetermined call start command or the number of detection signals is different from that of the predetermined call start command. A mode setting means is provided for generating a call stop command when it is determined that the mobile phone unit has been set, and setting the mobile phone unit in a call stop mode based on the call stop command.

  According to a second aspect of the present invention, in the communication terminal device according to the first aspect, the mobile phone unit amplifies and demodulates a reception signal from the center received by the transmission / reception antenna, and demodulates the reception unit. A reception signal processing unit that converts a reception signal into an audio signal and outputs the audio signal to the speaker; a transmission signal processing unit that converts an audio signal picked up by the microphone when the switch is turned on; and the transmission signal processing A transmission unit that modulates a transmission signal output from the unit, amplifies the transmission signal to a required transmission output, and transmits the signal as a radio wave from the transmission / reception antenna.

According to a third aspect of the present invention, in the communication terminal device according to the first aspect, the call start command is generated when the mode setting means determines that the duration of the detection signal is continued for a predetermined time. It is comprised so that it may be comprised.
According to a fourth aspect of the present invention, in the communication terminal device according to the first aspect, the call stop command is such that the number of detection signals output intermittently from the detection unit within a predetermined time has reached a predetermined number. Is generated when the mode setting means determines.

According to a fifth aspect of the present invention, in the communication terminal device according to the first aspect, the switch is pushed on when the mobile phone unit is set to a voice call mode and a communication path with the center is established. During this time, voice transmission to the center through the push-to-talk microphone set is possible.
According to a sixth aspect of the present invention, in the communication terminal device according to the first aspect, the mobile phone unit includes an amplifying unit that amplifies an audio signal output to the speaker, and the control unit is connected to the center. Controlling the gain of the amplification unit so that the volume of the speaker is reduced based on a detection signal output from the detection unit while the switch is pushed on when a speech path is established. Features.

  The invention of claim 7 is the communication terminal device according to claim 1, wherein a GPS antenna that receives a signal from a GPS satellite, a GPS receiver that receives and demodulates a signal from a GPS satellite that arrives at the GPS antenna, Sensor information acquisition for acquiring and processing a plurality of sensors provided to the vehicle as necessary, such as vehicle speed, opening / closing of a vehicle door, data received by the GPS receiver, and various signals detected by the plurality of sensors A processing unit, and the control unit sets the mobile phone unit to a sensor information transmission mode when a call is not made through the push-to-talk microphone set, and is acquired and processed by the sensor information acquisition processing unit. The transmitted sensor information is transmitted to the center through the mobile phone unit. .

According to an eighth aspect of the present invention, in the communication terminal device according to the first aspect, the control unit has a predetermined duration of the detection signal or a number of the detection signals that is predetermined as the switch is pushed. Callback means for issuing a callback request from the mobile unit to the center when it is determined that the predetermined value has been reached, and a request signal for callback by the callback means is passed through the mobile phone unit. It transmits to the said center, Based on this request signal, it transmits to the said mobile body from the said center, It is comprised so that the communication path between both may be established.
According to a ninth aspect of the present invention, in the communication terminal device according to the first aspect, the control unit receives the callback request signal from the center to the mobile unit when the mobile phone unit receives the center from the mobile unit. Callback control means for automatically making a call and establishing a communication path between the two is provided.

  In the communication terminal device of the present invention, a detection unit that detects whether or not the switch of the push-to-talk type microphone set is pushed and outputs a detection signal every time the switch is pushed is provided. Based on the call start command generated when it is determined by the mode setting means of the control unit that operates by taking in the detection signal, for example, that the duration of the detection signal output from the detection unit has been continued for a predetermined period of time. Performs call processing to the center corresponding to the phone number and sets the mobile phone unit to the voice call mode to enable a call with the center, and sets the mode of the control unit that operates by receiving the detection signal from the detection unit For example, a call generated when the number of detection signals from the detection unit output intermittently within a certain time is greater than or equal to a predetermined number. Since the mobile phone unit is configured to set the call stop mode based on the stop command, a call to the center and a voice call to the center can be performed using a push-to-talk type microphone set that can be operated with one hand. In addition to being possible, these call operations are also simplified, and the burden on the person who operates the mobile body can be greatly reduced.

In addition, according to the present invention, when the mobile phone unit is set to the voice call mode and the communication path is established with the center, it is possible to push the switch on and pass through the push-to-talk type microphone set. Transmission by voice from the mobile body side to the center can be easily performed, and voice from the center can be heard by pushing the switch off.
Further, according to the present invention, the speaker based on the signal detected by the detection unit while the switch of the push-to-talk type microphone set is pushed on when the communication path with the center is established. Since the gain of the amplifying unit is controlled by the control unit so as to reduce the volume of the voice, howling during a voice call can be prevented.

According to the present invention, the sensor information acquisition processing unit acquires various types of detection information detected by a plurality of sensors provided to the vehicle as necessary, such as the GPS receiver and the speed of the vehicle and the opening and closing of the vehicle door. Since the mobile phone unit is set to the sensor information transmission mode when there is no call through the push-to-talk type microphone set, the sensor information acquired and processed by the sensor information acquisition processing unit is passed through the mobile phone unit. Can be sent to the center.
Further, according to the present invention, a voice call can be made between the mobile unit and the center by a callback request from the mobile unit or a callback request from the center.

(First embodiment)
Embodiments of the present invention will be described below in detail with reference to the drawings.
FIG. 1 is an external view of a communication terminal device according to the present embodiment, FIG. 2 is a block diagram showing the overall configuration of the communication terminal device according to the present embodiment, and FIG. 3 is a mobile phone unit of the communication terminal device according to the present embodiment. It is a block diagram which shows the internal structure.

  1 and 2, the communication terminal device 100 is mounted on a moving body such as a vehicle such as a business car, a train, a ship, etc., and has a moving body and a center (not shown, but its own office is in charge of the moving body). This is a push-to-talk type microphone set 11 that can be operated with one hand, and can send and receive voice calls to and from sales offices, command rooms, emergency contacts or call centers) Antenna 12, mobile phone unit 13 connected to transmission / reception antenna 12, control unit 14, storage unit 15 connected to control unit 14, detection unit 16, GPS antenna 17, GPS reception unit 18, and various vehicle states are detected A plurality of sensors 20 and a sensor information acquisition processing unit 21 that acquires and processes signals detected by these sensor units are provided.

  As shown in FIGS. 1 and 2, the push-to-talk type microphone set 11 includes a housing 111, a microphone 112 and a speaker 113 attached to the housing 111 and connected to the mobile phone unit 13, and a housing 111. And a push-type switch 114 connected in series to the line of the microphone 112 to the mobile phone unit 13, and this push-to-talk type microphone set 11 includes the switch 114. When the switch 114 is turned on, the transmission state is entered, and when the switch 114 is turned off, the reception state is entered. Further, the speaker 113 of the push-to-talk type microphone set 11 is connected to the mobile phone unit 13 via the amplifying unit 19.

  The mobile phone unit 13 amplifies and demodulates the received signal from the center received by the transmitting / receiving antenna 12 and outputs the amplified signal to the speaker 113. The voice signal picked up by the microphone 112 when the switch 114 is turned on is used as a transmission signal. A receiving unit 131 that amplifies and demodulates a received signal from the center received by the transmitting / receiving antenna 12, as shown in FIG. A reception signal processing unit 132 that converts the reception signal demodulated in 131 into an audio signal and outputs the audio signal to the speaker 113, and a transmission signal processing unit 133 that converts the audio signal picked up by the microphone 112 when the switch 114 is turned on into a transmission signal. Then, the transmission signal output from the transmission signal processing unit 133 is modulated to obtain the required And a transmitting portion 134 for sending as a radio wave from the transmitting and receiving antenna 12 amplifies the signal output, the reception unit 131 and transmission unit 134 is connected to a transceiver antenna 12 through the antenna sharing device 136.

  The control unit 14 controls and manages the entire terminal device including the mobile phone unit 13 and the sensor information acquisition processing unit 21, and includes a CPU (central processing unit). In addition, the storage unit 15 connected to the control unit 14 stores information necessary for a call such as a telephone number of a center that is a call destination and a registration number of a mobile body, and the sensor information acquisition processing unit 21. The various detection information acquired and processed in the above are converted into digital signals and stored. Further, the storage unit 15 includes a call start command, a call stop command, etc., which will be described later, with a predetermined time duration of the detection signal accompanying the push operation of the switch 114 or a predetermined value of the number of detection signals. It is comprised so that it may be stored corresponding to.

The detection unit 16 detects whether or not the switch 114 of the push-to-talk type microphone set 11 has been pushed, and outputs a detection signal every time the switch 114 is pushed. The detection signal detected by the detection unit 16 is connected to the line to the unit 13 and is configured to be taken into the control unit 14.
Further, based on the detection signal from the detection unit 16, for example, the control unit 14 continues the detection signal output from the detection unit 16 for a predetermined time (for example, about 1 to 2 seconds). Based on this call start command, a call start command is generated, and a call processing is performed to the center corresponding to the telephone number registered in the storage unit 15 and the mobile phone unit 13 is set to the voice call mode. Thus, the number of detection signals that are intermittently output within a certain time (for example, 1 to 2 seconds), for example, from the detection unit 16 can be set to a predetermined number (for example, the switch 114). (3 pulse-like signals generated by intermittently pushing the button 3 times) to generate a call stop command, and the mobile phone unit 13 is stopped based on the call stop command. And a mode setting means 141 for setting the over-de.

While the mobile phone unit 13 is set to the voice call mode and the communication path with the center is established, the communication terminal apparatus 100 performs the push-to-talk type microphone set 11 while pushing the switch 114. It is possible to send to the center by voice.
The amplifying unit 19 amplifies the audio signal output from the reception signal processing unit 132 shown in FIG. 3 and outputs the amplified audio signal to the speaker 113. The gain of the amplifying unit 19 is the same as that of the communication terminal device 100 and the center. Control is performed so that the volume of the speaker 114 is reduced based on a detection signal output from the detection unit 16 during the push operation of the switch 114 while the switch 114 is being pushed when the communication path is established with It is configured to be.

In FIG. 2, a GPS antenna 17 receives a signal from a GPS satellite, a GPS receiving unit 18 receives and demodulates a signal from a GPS satellite arriving at the GPS antenna 17, and A plurality of sensors 20 for detecting various states are provided on the moving body as necessary, such as the speed of the moving body, opening and closing of the moving body door, the room temperature of the moving body, and the voltage of the battery mounted on the moving body. It is a sensor for detecting various states.
The sensor information acquisition processing unit 21 acquires and processes the data received by the GPS reception unit 18 and various detection signals detected by the plurality of sensors 20, and is acquired and processed by the sensor information acquisition processing unit 21. The transmitted sensor information is transmitted to the center in a state where the mobile phone unit 13 is set to the sensor information transmission mode when the call is stopped when the call through the push-to-talk type microphone set 11 is not made. .

Next, the operation of communication terminal apparatus 100 shown in the present embodiment will be described.
First, the push-to-talk type microphone set 11 that can be operated with one hand is connected to the mobile phone unit 13 of the communication terminal device 100 via a jack or the like. In this state, the push operation of the switch 114 of the push-to-talk type microphone set 11 is continued for a predetermined time, for example, about 1 to 2 seconds. The ON signal of the switch 114 accompanying this push operation is detected by the detection unit 16 and is taken into the control unit 14. The mode setting means 141 of the control unit 14 determines whether or not the duration of the detection signal output from the detection unit 16 has continued for a predetermined time (for example, 1 to 2 seconds). Here, when it is determined that a certain period of time (for example, 1 to 2 seconds) has been continued, a call start command is given from the mode setting unit 141 to the mobile phone unit 13 so that the mobile phone unit 13 is set to the voice call mode. In addition to setting, a call origination process is performed to the center corresponding to the telephone number registered in the storage unit 15, and a communication path between the communication terminal device 100 and the center is established to enable voice communication between the two. To.

When the switch 114 of the push-to-talk type microphone set 11 is pushed on in the state where the call mode is set and the communication path is established, the microphone 112 is in an operation state in which voice can be picked up. If a person or the like who operates the moving body toward the microphone 112 utters sound, the sound is picked up by the microphone 112 and converted into an electric signal, and then converted into a transmission signal by the transmission signal processing unit 133. The transmission signal is modulated and amplified to a required transmission output, and then transmitted as radio waves from the transmission / reception antenna 12 to the center via the base station or the base station of the communication carrier.
In this case, while the switch 114 of the push-to-talk type microphone set 11 is being pushed, the gain of the amplification unit 135 is set so that the volume of the speaker 113 is reduced based on the signal detected by the detection unit 16. Controlled by the control unit 14.
When the switch 114 is pushed off, the microphone 112 is disconnected from the mobile phone unit 13 and the gain of the amplification unit 135 is restored. Then, a call signal transmitted from the center corresponding to the content of the call transmitted from the communication terminal device 100 is received by the receiving unit 131 of the mobile phone unit 13 through the transmission / reception antenna 12, and the received signal is amplified and demodulated. The received signal processing unit 132 converts the sound signal into a sound signal and outputs the sound signal to the speaker 113. By ringing the speaker 113, the content of the call is heard from the center.
Thereafter, by repeating the push-on and push-off operations of the switch 114, voice communication between the communication terminal device 100 and the center becomes possible.

  When the mode setting means 141 recognizes about three pulse signals generated by intermittently pushing the switch 114 about three times during the call mode, a call stop command is generated, and this call The mobile phone unit 13 is set and controlled to the call stop mode by the stop command. Thus, the voice call between the communication terminal device 100 and the center is terminated.

Next, a case where detection data detected by each sensor is transmitted to the center will be described.
In this case, the mobile phone unit 13 is automatically set to the data transmission mode by the control unit 14 when the communication terminal device 100 is not talking to the center. Thereby, the data received by the GPS receiving unit 18 and various detection signals detected by the plurality of sensors 20 are acquired and processed by the sensor information acquisition processing unit 21. The sensor information processed by the sensor information acquisition processing unit 21 is transmitted from the mobile phone unit 13 in the data transmission mode state to the center via the transmission / reception antenna 12 and the base station.

  According to such a communication terminal device 100 according to the present embodiment, it is detected whether or not the switch 114 included in the push-to-talk type microphone set 11 is pushed, and a detection signal is output every time the switch 114 is pushed. The detection unit 16 is provided, and the duration of the detection signal output from the detection unit 16 is determined by the mode setting unit 141 of the control unit 14 that operates by receiving the detection signal from the detection unit 16 (for example, 1 to 2 seconds) Based on the call start command generated when it is determined that the call has been continued, the telephone call processing is performed to the center corresponding to the telephone number registered in the storage unit 115 and the mobile phone unit 13 is voiced. The mode of the control unit 14 that operates by receiving a detection signal from the detection unit 16 is set in the call mode to enable a call with the center. A call generated when the number of detection signals from the detection unit 16 output intermittently within a certain period of time is recognized by the mode setting unit 141 in advance, for example, about 3 times intermittent signals. Since the mobile phone unit 13 is set to the call stop mode based on the stop command, the push-to-talk type microphone set 11 that can be operated with one hand is used to make a call to the center and to receive voice from the center. Calls can be made, and these call operations can be simplified, so that the burden on the person who operates the mobile body can be greatly reduced.

In addition, according to the present embodiment, when the mobile phone unit 13 is set to the voice call mode and the communication path is established with the center, the push-to-talk is simply performed by pushing the switch 114. The voice transmission from the vehicle side to the center can be easily performed through the microphone set 11, and the voice from the center can be heard by pushing the switch 114 off.
Further, according to the present embodiment, the signal detected by the detection unit 13 while the switch of the push-to-talk type microphone set is pushed on when the communication path with the center is established. Since the gain of the amplification unit 135 is controlled by the control unit 14 so that the volume of the speaker 113 is reduced based on this, howling during a voice call can be prevented.

  According to this embodiment, various detection information detected by a plurality of sensors provided to the moving body such as the speed of the GPS receiving unit 18 and the moving body and the opening / closing of the door of the moving body is detected. Since the sensor information acquisition processing unit 21 performs acquisition processing and the mobile phone unit 13 is set to the sensor information transmission mode when a call is not made through the push-to-talk type microphone set 11, the sensor information acquisition processing is performed. The sensor information acquired and processed by the unit 21 can be transmitted to the center through the mobile phone unit 13.

(Second Embodiment)
Next, another embodiment of the control unit according to the communication terminal apparatus of the present invention will be described with reference to FIG.
In the second embodiment, as shown in FIG. 4, the duration of the detection signal output from the detection unit 16 in accordance with the push operation of the switch 114 of the push-to-talk type microphone set 11 is determined in advance. Control the callback means 142 that issues a callback request from the mobile unit to the center when it is determined that the number of detection signals output from the detection unit 16 has reached a predetermined value within a predetermined period of time or within a certain period of time. The callback unit 142 is operated by a push operation of the switch 114, and a request signal for callback is transmitted to the center through the mobile phone unit 13, and the mobile unit from the center based on the request signal. To establish a call path between them. Thus, a voice call between the two can be performed by a callback request from the mobile body.
Further, as shown in FIG. 4, when the callback control means 143 is provided in the control unit 14 and the callback request signal transmitted from the center to the mobile body is received by the mobile phone unit 13 by the callback control means 143. On the basis of this request signal, control is performed so as to automatically make a call path between the two by automatically transmitting from the moving body to the center. Thus, a voice call between the two can be performed in response to a callback request from the center.
The storage unit 15 is also configured to store data such as the duration of the detection signal and the number of detection signals set in response to a callback request from the mobile body.

In the above embodiment, the case where a telephone number corresponding to one center is registered in the storage unit 15 has been described. However, the present invention is not limited to this, and a plurality of telephone numbers can be registered. In this case, the telephone number by the push operation of the switch 114 of the push-to-talk type microphone set 11 is the duration of the detection signal output from the detection unit 16 and the detection signal output intermittently within a certain time. By combining the numbers, a plurality of call destinations can be selected separately and a call can be made separately to each call destination.
In the above embodiment, the switch 114 of the push-to-talk type microphone set 11 is pushed on and off in a predetermined pattern to shift the communication terminal device of the mobile unit and the center to a call state. Although the present invention is not limited to this, the present invention is not limited to this, and the communication terminal apparatus 100 is automatically set to a call state when the communication terminal apparatus 100 is turned on, or the communication terminal apparatus 100 is set to the answering machine service state. It is also possible to set to.
Further, in the present invention, as a means for selecting a plurality of call destinations from the mobile body side, the call terminal apparatus 100 is provided with a selection switch such as a rotary switch, and the telephone number of the call destination is changed by switching the selection switch. Can be selected separately. In this case, the mode setting unit 141 determines whether the duration of the detection signal from the detection unit 16 accompanying the push operation of the switch 114 has reached a predetermined time or the number of detection signals. When the answer is yes, a call is made to the callee of the selected telephone number, and a call can be made by voice with the callee.
In addition, the call start command or the call stop command in the present invention is not limited to a method that is generated only by the number of detection signals that are output intermittently from the detection unit 16 within a continuation time or a predetermined time of the detection signal. It is also possible to generate a call start command or a call stop command by the mode setting means by a combination of the duration time and the number of detection signals.
In addition, the present invention can be implemented in various other forms in specific configurations, functions, and effects without departing from the spirit of the communication terminal device described in the claims.

It is an external view of the communication terminal device in an embodiment of the present invention. It is a block diagram which shows the whole structure of the communication terminal device in embodiment of this invention. It is a block diagram which shows the internal structure of the mobile telephone unit of the communication terminal device in embodiment of this invention. It is a block diagram which shows the other example of the control part in embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Communication terminal device, 11 ... Push-to-talk type microphone set, 111 ... Housing, 112 ... Microphone, 113 ... Speaker, 114 ... Switch, 12 ... Transmitting / receiving antenna, 13 ... Mobile phone Unit: 131... Reception unit, 132... Reception signal processing unit, 133... Transmission signal processing unit, 134... Transmission unit, 14... Control unit, 141. 143... Callback control means, 15... Storage unit, 16... Detection unit, 17... GPS antenna, 18... GPS reception unit, 19. Information acquisition processing unit.

Claims (9)

A communication terminal device that is mounted on a vehicle or other mobile body and enables voice communication between the mobile body and a call center,
A push-to-talk type microphone set that has a microphone and a speaker, and a switch connected in series to the microphone, is in a transmission state when the switch is turned on, and is in a reception state when the switch is turned off;
A transmitting and receiving antenna;
Amplifies and demodulates the received signal from the center received by the transmitting / receiving antenna and outputs the amplified signal to the speaker, and modulates the audio signal picked up by the microphone in response to an ON operation of the switch into a transmission signal to obtain a required transmission output A mobile phone unit that is amplified and transmitted as radio waves from the transmitting / receiving antenna;
A control unit that controls and manages the entire terminal device including the mobile phone unit;
A storage unit connected to the control unit and storing at least the telephone number of the center;
A detection unit that detects whether or not the switch is pushed and outputs a detection signal every time the switch is pushed;
The control unit detects the duration of the detection signal output from the detection unit with the push operation of the switch and the number of the detection signals output intermittently within a certain time, and continues the detection signal When it is determined that the time is a predetermined time or the number of the detection signals has reached a predetermined value, a call start command is generated, and the phone number corresponding to the telephone number of the storage unit is generated based on the call start command A time different from the call start command in which the call processing is performed at the center and the mobile phone unit is set in the voice call mode to enable a call with the center and the duration of the detection signal is predetermined. Alternatively, a call stop command is generated when it is determined that the number of the detection signals is different from the predetermined value of the call start command, and the call stop command is generated based on the call stop command. Comprises mode setting means for setting the mobile phone unit to call stop mode Te,
A communication terminal device.   The mobile phone unit amplifies and demodulates a received signal from the center received by the transmitting / receiving antenna, and receives signal processing that converts the received signal demodulated by the receiving unit into an audio signal and outputs it to the speaker A transmission signal processing unit that converts an audio signal picked up by the microphone into a transmission signal when the switch is turned on, and a transmission signal output from the transmission signal processing unit is modulated and amplified to a required transmission output The communication terminal device according to claim 1, further comprising: a transmission unit configured to transmit as radio waves from the transmission / reception antenna.   2. The call start command is configured to be generated when the mode setting means determines that the duration of the detection signal is continued for a predetermined time. Communication terminal device.   The call stop command is configured to be generated when the mode setting means determines that the number of detection signals intermittently output from the detection unit within a predetermined time has reached a predetermined number. The communication terminal apparatus according to claim 1, wherein:   While the switch is pushed on when the mobile phone unit is set to the voice call mode and the communication path with the center is established, to the center through the push-to-talk type microphone set 2. The communication terminal apparatus according to claim 1, wherein transmission by voice is enabled.   The mobile phone unit includes an amplifying unit that amplifies an audio signal output to the speaker, and the control unit pushes the switch on when a communication path with the center is established. 2. The communication terminal apparatus according to claim 1, wherein the gain of the amplifying unit is controlled so that the volume of the speaker is reduced based on a detection signal output from the detecting unit.   A GPS antenna that receives signals from GPS satellites, a GPS receiver that receives and demodulates signals from GPS satellites arriving at the GPS antenna, and a vehicle speed, vehicle door opening / closing, etc. A plurality of sensors, and a sensor information acquisition processing unit that acquires and processes data received by the GPS reception unit and various signals detected by the plurality of sensors, and the control unit includes the push-to-talk The mobile phone unit is set to a sensor information transmission mode when a call through the microphone set is not made, and the sensor information acquired and processed by the sensor information acquisition processing unit is transmitted to the center through the mobile phone unit. The communication terminal device according to claim 1, wherein the communication terminal device is configured.   When the control unit determines that the duration of the detection signal associated with the push operation of the switch is a predetermined time or the number of the detection signals has reached a predetermined value, A callback means for issuing a callback request to the mobile station, and transmits a request signal for callback to the center through the mobile phone unit by the callback means, and the movement from the center based on the request signal The communication terminal device according to claim 1, wherein the communication terminal device is configured to make a call to a body and establish a communication path between the two.   The control unit controls the mobile phone unit to receive a callback request signal from the center to the mobile unit so that the mobile unit automatically sends the callback request signal to the center and establishes a communication path between them. The communication terminal apparatus according to claim 1, further comprising a callback control unit.

Images