JP2002118685A - Urgent message system and terminal equipment thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem associated with urgent message system terminal equipment that, if a power circuit of terminal equipment becomes faulty, power supply to the equipment is completely lost and the communication of the anomaly in power supply to the user is impossible, and further, an urgent message cannot be transmitted even in an emergency such as an traffic accident and sudden illness. SOLUTION: Power is supplied to terminal equipment 1 from two systems of power circuit, a first power circuit 18 and a second power circuit 19, and power is also supplied to a control portion 12 that controls the operation of the terminal equipment 1. Thus, even if either of the power circuits becomes faulty, power is still supplied from the other power circuit. Therefore, the operation of the terminal equipment 1 is maintained, and the fault in the power circuit can be detected by the control portion 12 and reported to the user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency call system terminal device mounted on a vehicle and having a function of transmitting data such as vehicle position information to an emergency call center in an emergency and an emergency call system terminal device. The present invention relates to an emergency call system used, and particularly to a power supply circuit for operating an emergency call system terminal device.

[0002]

2. Description of the Related Art Conventionally, it is mounted on a vehicle such as an automobile,
2. Description of the Related Art There is known an emergency call system terminal device provided with an emergency call communication means for performing a telephone call process via a base station of a communication carrier at a center that controls the emergency call system such as a police station or an emergency call center.

As a conventional emergency notification system terminal device, there has been proposed an apparatus for supplying power to the inside of the emergency notification system by supplying power from a main battery or an auxiliary battery. For example, JP-A-8-287386 discloses a power supply from a vehicle-mounted battery and a backup power supply using a large-capacity capacitor. Also, Japanese Patent Application Laid-Open No. 2000-108822 proposes a power supply device that supplies power from a vehicle-mounted power supply and uses a battery of a cellular telephone. A power supply control unit included in the conventional emergency call system terminal device periodically performs an automatic inspection of an internal circuit of the emergency call system terminal device, and notifies a user when an abnormality is detected in a part of the internal circuit. Control was performed. Furthermore, in an emergency such as a traffic accident or sudden illness, the operation is performed by supplying power from the power supply circuit, a telephone call is automatically made to the emergency call center, and the location information data is transferred, so that the emergency call can be notified. The process of notifying the emergency notification center of the position of the vehicle that started the process was performed.

[0004]

However, in the case of the conventional emergency call system terminal equipment, even if the power supply itself is divided into two systems, only one system is provided for the power supply circuit. Since the power supply to the emergency notification system terminal device is cut off and the power supply to the control unit for controlling the operation of the emergency notification system terminal device is cut off, it is impossible to transmit the power supply abnormality to the user. At the same time, even in an emergency such as a traffic accident or sudden illness, it becomes impossible to perform an emergency call communication process.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem. Even when a power supply circuit fails, the operation of an emergency notification system terminal device is maintained, and a power supply abnormality is transmitted to a user. It is intended to provide an emergency call system terminal device capable of performing this.

[0006]

According to a first aspect of the present invention, there is provided an emergency call system terminal which is mounted on a vehicle having a battery and automatically performs an emergency call notification process to a center in charge of the emergency call system. An emergency notification system terminal device having a configuration including two power supply circuits for supplying power from the battery to the emergency notification system terminal device. With this configuration, even if one of the power supply circuits shifts to a state where power supply cannot be performed due to a failure or the like, power is supplied by another power supply circuit, so that the operation of the emergency notification system terminal device Can be maintained.

According to a second aspect of the present invention, when one of the power supply circuits provided with the two-system circuit is abnormal, the control unit that controls the emergency notification system terminal device detects the abnormality. This is an emergency notification system terminal device having a configuration having a function of performing With this configuration,
The failure of the power supply circuit can be detected by the control unit.

Further, the invention according to claim 3 of the present invention provides:
The emergency notification system terminal having a configuration in which the control unit detects an abnormality of the power supply circuit and detects at least one of a decrease in output voltage from the power supply circuit and a decrease in output voltage of the battery. Equipment. With this configuration, the control unit can detect the abnormality due to the voltage drop.

Further, the invention according to claim 4 of the present invention provides:
The control unit is an emergency notification system terminal device configured to detect an abnormality of the power supply circuit by comparing an output voltage of the battery and an output voltage from the power supply circuit. With this configuration, the control unit can detect an abnormality based on two voltage conditions.

Further, the invention according to claim 5 of the present invention provides:
The control unit determines that the power supply circuit is abnormal when the output voltage from the power supply circuit drops below a certain voltage, even though the output voltage of the battery does not drop below a certain voltage. An emergency notification system terminal device having a configuration for detecting an abnormality of a supply circuit. With this configuration, the control unit detects an abnormality in the power supply circuit when the output voltage from the power supply circuit drops below the certain voltage even though the battery voltage of the vehicle does not drop below the certain voltage. can do.

Further, the invention according to claim 6 of the present invention provides:
Normally, power is supplied from one power supply circuit, and the one power supply circuit detects at least one of a drop in output voltage, a drop in battery voltage, or a case in which power supply is cut off due to a failure or the like. , The control unit includes:
An emergency notification system terminal device having a configuration for starting power supply by another power supply circuit. With this configuration, the operation of the emergency notification system terminal device can be maintained.

Further, the invention according to claim 7 of the present invention provides:
Normally, power is supplied from one power supply circuit, and the one power supply circuit detects at least one of a drop in output voltage, a drop in battery voltage, or a case in which power supply is cut off due to a failure or the like. , The control unit includes:
An emergency notification system terminal device having a configuration for shutting down a failed power supply circuit, switching to another power supply circuit, and starting power supply. With this configuration, the operation of the emergency notification system terminal device can be maintained.

Further, the invention according to claim 8 of the present invention provides:
Normally, power is supplied from one power supply circuit, and the one power supply circuit detects at least one of a drop in output voltage, a drop in battery voltage, or a case in which power supply is cut off due to a failure or the like. , The control unit includes:
An emergency notification system terminal device having a configuration in which power supply is started from another power supply circuit while power supply from a failed power supply circuit is continued. With this configuration, the operation of the emergency notification system terminal device can be maintained.

Further, the invention according to claim 9 of the present invention provides:
The control unit sets the power supply start condition from one of the power supply circuits when the output voltage from the other power supply circuit or the output voltage from the battery that supplies power in a normal state drops below a certain voltage. The control unit is an emergency notification system terminal device having a configuration for starting power supply from another power supply circuit. With this configuration, the operation of the emergency notification system terminal device can be maintained.

Further, the invention according to claim 10 of the present invention is characterized in that when the power supply from one power supply circuit is being performed, the other power supply circuit that normally supplies power is restored to a normal state. The control unit is an emergency notification system terminal device configured to cut off power supply from another power supply circuit and switch to power supply from a power supply circuit that normally supplies power. With this configuration, it is possible to restore a normal power supply system.

Further, the invention according to claim 11 of the present invention is characterized in that, when power is supplied from another power supply circuit, when the power supply circuit that normally supplies power is restored to a normal state, The control unit is an emergency notification system terminal device having a configuration for interrupting power supply from another power supply circuit. With this configuration, the operation can be restored so that the operation is performed by the power supply from the power supply circuit that normally supplies power.

Further, according to a twelfth aspect of the present invention, the control unit, which detects that the power supply circuit has been restored to a normal state, uses the output voltage from the power supply circuit that normally supplies power. An emergency notification system terminal device having a configuration for detecting and setting power supply from a power supply circuit that normally supplies power when the output voltage rises above a certain voltage. It can be recognized that the circuit has returned to a normal state.

Further, the invention according to claim 13 of the present invention is an emergency call system terminal device having a configuration in which power is supplied by two power supply circuits even in a normal state, and one power supply circuit is out of order. Even when the power supply is interrupted due to, for example, the power supply from another power supply circuit, the operation can be continued.

Further, in the invention according to claim 14 of the present invention, the power supply from the main battery of the vehicle and the power supply from the auxiliary battery of the terminal device for the emergency notification system are separated through separate power supply circuits. In the emergency notification system terminal device that has a configuration to supply to the emergency notification system terminal device, even if the main battery or the power supply circuit that receives power supply from the main battery fails, switch to the auxiliary battery and switch from the auxiliary battery. The operation can be maintained by the power supply circuit receiving the power supply.

Further, the invention according to claim 15 of the present invention operates by power supply from a power supply circuit which normally receives power supply from a main battery, and operates when power supply from the main battery is interrupted. An emergency notification system terminal device having a configuration based on a power supply from a power supply circuit that receives power from an auxiliary battery,
Operation can be maintained.

Further, the invention according to claim 16 of the present invention provides a control unit for controlling the emergency notification system terminal device, an internal circuit other than a control unit in the emergency notification system terminal device, and a power supply circuit. In an emergency call system terminal device having a configuration having two circuits, even if one power supply circuit fails, the other power supply circuit,
The operation of the control unit can be maintained.

Further, the invention according to claim 17 of the present invention provides a case where power is supplied from one power supply circuit to the control section and the internal circuit, and the power supply voltage is reduced or interrupted due to a failure or the like. The operation of the control unit can be maintained by the emergency notification system terminal device configured to supply power to the control unit from another power supply circuit.

The invention according to claim 18 of the present invention has a configuration in which power is supplied from one power supply circuit to the control unit and the internal circuit, and power is supplied from another power supply circuit to the control unit. Emergency call system terminal equipment
The operation of the control unit can be maintained.

Further, the invention according to claim 19 of the present invention has a configuration including a main control unit for controlling the operation of the terminal device of the emergency notification system, and a sub-control unit for controlling communication with an external device. Emergency call system terminal equipment, one of the power supply circuit failure, and the accompanying operation stop of the control unit, or in the event of an abnormality such as operation stop due to the failure of the control unit itself, another power supply circuit, and The control unit can maintain the operation.

Further, the invention according to claim 20 of the present invention has a configuration in which power is supplied to the main control unit from one power supply circuit and power is supplied to the sub-control unit from the other power supply circuit. In the emergency notification system terminal equipment, one of the power supply circuits is broken, and the operation of the control unit accompanying it, or the abnormality such as the operation stop due to the failure of the control unit itself, another abnormal power supply circuit , And the control unit can maintain the operation.

Further, the invention according to claim 21 of the present invention is an emergency call system terminal device having a configuration in which power is supplied from two power supply circuits to the main control unit and the sub control unit. Even if one of the power supply circuits fails, another power supply circuit can maintain its operation.

Further, the invention according to claim 22 of the present invention supplies power to the main control unit and the sub-control unit from one power supply circuit, and supplies power to the main control unit from another power supply circuit. In the emergency notification system terminal device having a configuration for supplying the power supply, even if one of the power supply circuits fails, another power supply circuit can maintain the operation of the main control unit.

Further, according to a twenty-third aspect of the present invention, a power supply circuit supplies power to the main control unit and the sub-control unit, and another power supply circuit supplies power to the sub-control unit. In the emergency notification system terminal device having a configuration for supplying the sub-control unit, even if one of the power supply circuits fails, another power supply circuit can maintain the operation of the sub-control unit.

Further, the invention according to claim 24 of the present invention is an emergency call system terminal device having a configuration in which the operation of the power supply circuit is monitored by the main control unit, and detects an abnormality in the power supply circuit. can do.

Further, an invention according to claim 25 of the present invention is an emergency notification system terminal device having a configuration in which the sub-control unit monitors the operation of the power supply circuit.
An abnormality in the power supply circuit can be detected.

Further, according to a twenty-sixth aspect of the present invention, an emergency notification system terminal device has a configuration in which the operation of the power supply circuit is monitored by both the main control unit and the sub control unit. Thus, an abnormality in the power supply circuit can be detected.

Further, according to a twenty-seventh aspect of the present invention, an emergency notification system terminal device having a configuration in which the main control unit monitors the operation of the power supply circuit for supplying power to the sub control unit. Thus, the main control unit can detect an abnormality in the power supply circuit that supplies power to the sub control unit.

Further, according to a twenty-eighth aspect of the present invention, the emergency notification system terminal device has a configuration in which the sub-control unit monitors the operation of the power supply circuit for supplying power to the main control unit. Thus, the abnormality of the power supply circuit that supplies power to the main control unit can be detected by the sub control unit.

Further, the invention according to claim 29 of the present invention is arranged such that the main control section monitors a power supply circuit for supplying power to the main control section, and outputs a monitoring result to the sub-control section. The emergency notification system terminal device can output the abnormality of the power supply circuit that supplies power to the main control unit to the sub control unit.

Further, the invention according to claim 30 of the present invention is configured such that the sub-control unit monitors a power supply circuit for supplying power to the sub-control unit, and outputs a monitoring result to the main control unit. The emergency notification system terminal device can output an abnormality of the power supply circuit that supplies power to the sub-control unit to the main control unit.

Further, according to the invention of claim 31 of the present invention, high-performance control is possible with an emergency call system terminal device in which the main control unit is constituted by a control circuit including a microcomputer.

Further, according to the invention of claim 32 of the present invention, high-performance control is possible with an emergency call system terminal device in which the sub-control unit is constituted by a control circuit including a microcomputer.

Further, according to a thirty-third aspect of the present invention, the emergency notification system has a configuration in which when the output voltage from the power supply circuit drops below a certain level, the control unit determines that there is an abnormality. In the terminal device, the power supply circuit can be monitored by the control unit.

Further, according to a thirty-fourth aspect of the present invention, when the control unit detects an abnormality or determines that the abnormality is abnormal, the emergency notification system terminal device has a configuration for transmitting the abnormality. It can notify the user.

Further, according to a thirty-fifth aspect of the present invention, when the control unit detects an abnormality or determines that the abnormality is abnormal, the emergency notification system terminal device has a configuration for recording the abnormality as abnormality history data. Then, the control unit can query the history of the abnormality.

Further, according to a thirty-sixth aspect of the present invention, in the emergency call system terminal device having the function of outputting the history of abnormalities to the outside of the emergency call system terminal device, History management and analysis can be performed externally.

[0042] Further, the invention according to claim 37 of the present invention is an emergency call system terminal device having a configuration for acquiring the history of abnormalities from an externally connected device connectable to the emergency call system terminal device. The external connection device can acquire the history of the abnormality.

Further, in the invention according to claim 38 of the present invention, two power supply circuits are provided, and an emergency notification system terminal device including the main control unit and the sub control unit from one power supply circuit. Power supply to all internal circuits, and, when an abnormality of one power supply circuit is detected, an emergency notification system including the main control unit and the sub control unit from another power supply circuit. In an emergency notification system terminal device that supplies power to all internal circuits in the terminal device, if one of the power supply circuits is detected, the main control unit and the sub-control unit by another power supply circuit. Power can be supplied to all internal circuits in the emergency notification system terminal device including the emergency notification system terminal, and the operation can be maintained.

Further, according to a thirty-ninth aspect of the present invention, the main control unit and the sub-control unit realize a function of each by software for controlling a microcomputer and execute a process of monitoring each other, Further, when the main control unit monitors the voltage of the main battery of the vehicle and detects an abnormality, the main control unit switches the power supply from the auxiliary battery of the emergency notification system terminal device to continue the operation. Item 39. In the emergency notification system terminal device according to Item 38, when the main control unit detects an abnormality of a main battery of the vehicle, the main control unit switches to power supply from an auxiliary battery of the emergency notification system terminal device to maintain operation. Make it possible.

Further, the invention according to claim 40 of the present invention utilizes the fact that the main control unit controls lighting and blinking of an indicator, and the main control unit switches to power supply from the auxiliary battery. In the emergency notification system terminal device that informs the user, the main control unit can transmit to the user that the power supply has been switched from the auxiliary battery.

Further, the invention according to claim 41 of the present invention is characterized in that the sub-control unit is not operable when the periodic communication between the control units cannot be executed due to the power cutoff from the first power supply circuit or the abnormality of the main control unit. Is an emergency notification system terminal device that determines that the main control unit is abnormal and turns on and blinks the indicator to notify the user of the abnormality, and the sub-control unit determines that the main control unit is abnormal. Can control the lighting and blinking of the indicator to notify the user of the abnormality.

Further, the invention according to claim 42 of the present invention is characterized in that when the periodic communication between the control units cannot be executed due to the power cutoff from the second power supply circuit or the abnormality of the sub-control unit, the main control unit Is an emergency notification system terminal device that determines that the sub-control unit is abnormal, and turns on and blinks the indicator to notify the user of the abnormality, and the main control unit determines that the sub-control unit is abnormal. In this case, it is possible to notify the user of the abnormality by controlling the lighting and blinking of the indicator.

Further, the invention according to claim 43 of the present invention provides an emergency notification system terminal device and an emergency notification center for receiving an emergency notification transmission signal from the emergency notification system terminal device by controlling the emergency notification system. An emergency call system including the above can be constructed.

[0049]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) As shown in FIG.
The emergency notification system terminal device 1 according to the first embodiment of the present invention is mounted on a vehicle such as a car, and is a center that has jurisdiction over an emergency notification system such as a police or an emergency notification center in the event of an emergency such as a traffic accident or sudden illness. (Hereinafter, referred to as a center) to send an emergency vehicle dispatch request by transmitting current vehicle position information and data such as registered vehicles. The communication antenna 2 transmits a signal transmitted from the emergency report communication means 11 to the base station of the communication carrier and outputs a signal received from the communication carrier to the emergency report communication means 11. The emergency call transmission button 3 is pressed by a user in an emergency such as a traffic accident or sudden illness to generate a signal for starting an emergency call transmission process. The GPS antenna 4 is an antenna that receives data from a GPS satellite. Main battery 5
Supplies power to the electrical equipment of the vehicle and supplies power to the emergency notification system terminal equipment 1. The microphone 6 is a microphone that outputs a user's voice to the emergency notification system terminal device 1 at the time of voice call notification in the emergency notification notification process, and a microphone module including an amplification circuit and the like. The speaker 7 sounds a voice signal received from the emergency call center at the time of the voice call communication. Indicator 8 is normal,
It is an information transmission means such as a lighting device for transmitting the operating state of the emergency notification system terminal device 1 to the user, such as an abnormality or an emergency notification.

In the emergency call system terminal device 1, the emergency call notification means 11 responds to the call request signal from the control unit 12 by using the telephone number input from the control unit 12 via the base station of the communication carrier. The call originating process is started to the other party corresponding to the telephone number. When receiving a signal that shifts during a call, such as an outgoing response from a call partner or a busy signal, the control unit 12 shifts to voice call control or data communication control, and sends a signal to the control unit 12 to notify the shift to a call. Output. Further, the information such as the traveling direction and direction of the vehicle and the data such as the position information input from the control unit 12 are transmitted to a center, which is a communication partner corresponding to the telephone number, via a base station of a communication carrier. Perform outgoing call processing.

The control unit 12 stores the data such as the position information acquired from the position information acquisition processing unit 14, the history data of the emergency report contact processing, and the abnormality history data when an abnormality occurs in the emergency report system terminal device 1. Control for recording in the unit 15 is performed. Further, it recognizes that there has been an emergency call request from an operation signal or the like from the emergency call transmission button 3 and inputs data such as position information obtained from the position information acquisition processing unit 14 and recorded in the storage unit 15 or the like. Further, the telephone number of the center is acquired from the storage unit 15. Using the telephone number, a call origination request is made to the emergency call communication means 11. Further, when a response signal from the other party corresponding to the telephone number or a signal such as a busy signal which shifts to a busy state is received from the emergency call notification unit 11, it is recognized that the state has shifted to the talking state. Further, the position information acquisition processing unit 1
4 transmits a signal for transmitting the location information history data obtained from the base station 4 to the center corresponding to the telephone number corresponding to the telephone number via the base station of the communication carrier.
1 is output.

The gyro sensor 13 generates information such as the traveling direction and direction of the vehicle. Position information acquisition processing unit 14
Performs a process of outputting data from the gyro sensor 13 and data such as position information generated from data received from the GPS antenna 4 by the GPS receiver 16 to the control unit 12. The storage unit 15 stores the telephone number of the center,
And a memory for recording information such as a registration number of a vehicle on which the emergency notification system terminal device 1 is mounted and position information generated by the position information acquisition processing unit 14, and outputs data recorded by a request signal from the control unit 12. Perform the following processing. The GPS receiver 16 is a device that performs a process of outputting data such as position information to the position information acquisition processing unit 14 based on data obtained from the GPS antenna 4. The hands-free device 17 uses a signal processing and level adjustment function to transmit a voice signal from a user during a voice call, in order to realize a hands-free voice call during an emergency call contact process.
And a signal processing device that performs an echo cancellation process and a howling control process on the audio signal of the audio signal received from the center. The first power supply circuit 18 is a power supply circuit that supplies power to an internal circuit of the emergency notification system terminal device 1. The second power supply circuit 19 is another power supply circuit that supplies power to an internal circuit of the emergency notification system terminal device 1. In the present invention, the circuits built into the emergency notification system terminal equipment are collectively called "internal circuits". The first diode 181 is connected to the first power supply circuit 18.
The power supply from the second power supply circuit 19 prevents the inflow of power supply from the second power supply circuit 19. Second diode 18
Reference numeral 2 denotes a diode that outputs power supplied from the second power supply circuit 19 to the emergency notification system terminal device 1 and that prevents power from flowing from the first power supply circuit 18.

The operation of the terminal device of the emergency call system according to the first embodiment of the present invention configured as described above will be described. In FIG. 1, a first power supply circuit 18 and a second power supply circuit 19 generate power for an internal circuit of the emergency notification system terminal device 1 by supplying power from the main battery 5. The power generated from the first power supply circuit 18 is supplied to the internal circuit of the emergency notification system terminal device 1 via the first diode 181. Further, the second diode 182 prevents the second power supply circuit 19 from flowing into the second power supply circuit 19. The power generated from the second power supply circuit 19 is supplied to the internal circuit of the emergency notification system terminal device 1 via the second diode 182. Further, the first diode 181 prevents the first power supply circuit 18 from flowing into the first power supply circuit 18.

By the power supply, the emergency notification system terminal device 1 and the control unit 12 that controls the operation of the emergency notification system terminal device 1 can operate.

In the state where the power is supplied,
At normal times other than the emergency call notification processing, the position information acquisition processing unit 14 generates position information data based on data from the gyro sensor 13, data received by the GPS receiver 16 from the GPS antenna 4, and the like. The control unit 12 performs a process of periodically acquiring data such as position information from the position information acquisition processing unit 14 and recording the data in the storage unit 15.

The user presses the emergency call button 3 in an emergency such as a traffic accident or sudden illness. The emergency call transmission button 3 outputs a signal indicating that the button has been pressed to the control unit 12 when pressed by the user. The control unit 12 recognizes from the operation signal from the emergency call transmission button 3 that an emergency call transmission request has been made, and starts the emergency call communication process.

The control unit 12 performs a process of connecting the emergency notification unit 11 and the signal path of the control unit 12. Further, it acquires the data such as the accumulated position information from the storage unit 15 and the telephone number of the center, and makes a call request to the emergency call contact means 11 using the telephone number.

The emergency call notification means 11 is a communication antenna 2
To start a telephone call process to the other party corresponding to the telephone number via the base station of the communication carrier.

When receiving an outgoing call response from a call partner or a signal such as a busy signal that shifts to a busy state, the emergency call notification means 11 recognizes that the state has shifted to a talking state, and performs voice call control or data communication. At the same time, the control section 12 sends a signal notifying that the control has been transferred during the call.
Output to The control unit 12 determines that the call is successful,
A process of transmitting data such as position information acquired from the storage unit 15 to a center, which is a communication partner corresponding to the telephone number, via a base station of a communication carrier or the like is performed.

The center is the emergency call system terminal equipment 1
When all of the position information data from the terminal has been received, a process for switching to a voice call is performed. When receiving the signal indicating the shift to the voice call, the emergency call notification unit 11 incorporated in the emergency call system terminal device 1 outputs the signal indicating the shift to the voice call to the control unit 12. Control unit 12
When receiving a signal indicating that the telephone call has been switched to a voice call, the controller performs control to connect the emergency call notification unit 11 and the voice path of the hands-free device 17, and shifts to a voice call notification process.

At the time of voice call contact processing, the emergency call contact means 1
1 outputs a voice signal received from the center to the hands-free device 17. The hands-free device 17 obtains an audio level and a frequency characteristic from the received audio signal using an internal signal processing circuit, performs processing such as increasing the audio level of the received audio signal, and outputs the result to the speaker 7. . The speaker 7 performs a process of sounding the received voice signal input from the hands-free device 17 and transmits the signal to the user.

The microphone 6 acquires a voice signal from the user and a received voice signal sounded from the speaker 7, and outputs them to the hands-free device 17. Hands-free device 17
When a transmission signal having a signal component similar to the audio level and frequency characteristics obtained from the received audio signal is input, the signal is determined to be an echo component of the received audio signal input by the microphone 6, and the echo component is removed. Do the processing to
It outputs to the emergency call communication means 11. Emergency call notification means 1
1 performs a process of receiving a transmission audio signal from the hands-free device 17 and transmitting it to the center.

When the voice call communication process is completed, the emergency communication system terminal device 1 shifts to a standby state and waits for a voice call from the center. In the standby state, when a voice call from the center occurs,
The process shifts to automatic incoming call and voice call processing, and restarts voice call communication processing. If no voice call is received from the center even after a certain period of time has passed since the transition to the standby state, the standby state is released and the normal state is entered.

The control unit 12 controls the first power supply circuit 1
8 or a signal indicating an operation state, such as a power supply voltage signal from the second power supply circuit 19. Control unit 12
Monitors a signal from the first power supply circuit 18 or the second power supply circuit 19 and, when an abnormality such as a voltage drop is detected, records the history of the abnormality in the storage unit 15 and And outputs a control signal instructing lighting, blinking, and the like. The indicator 8 is controlled by the control unit 12
Processing such as lighting and blinking in response to the control signal from
First power supply circuit 18 or second power supply circuit 19
To inform the user of the abnormality.

The acquisition of the history of the abnormalities can be realized by connecting an externally connected device to the outside of the emergency notification system terminal device 1 and communicating with the control unit 12.

With this configuration, even if one of the power supply circuits of a plurality of systems fails, the emergency notification system terminal device 1 and the emergency notification system terminal The power supply to the control unit that controls the device 1 can be continued, the abnormality of the power supply circuit can be transmitted to the user, and the emergency call can be reliably made even in an emergency such as a traffic accident or sudden illness. Processing can be performed.

(Second Embodiment) FIG. 2 shows a second embodiment of the present invention.
In this embodiment, two power supply circuits for supplying power to the emergency notification system terminal equipment are provided, and one of the first power supply circuit 18 and the second power supply circuit 19 is provided.
The operation is performed by the power supply from the two power supply circuits, and when one of the first power supply circuit 18 and the second power supply circuit 19 cannot supply power due to a failure or the like, the first The emergency notification system terminal device is capable of maintaining operation by starting power supply from the other power supply circuit of the power supply circuit 18 and the second power supply circuit 19.

FIG. 2 is different from FIG. 1 in that a transistor 183 for controlling power supply on and off is provided between the second power supply circuit 19 and the second diode 182. The transistor 183 is a power transistor that controls power supply from the second power supply circuit 19.

Normally, the first power supply circuit 18
Power is supplied to the internal circuit of the emergency notification system terminal device 1 and the control unit 12. Further, the control unit 12 monitors a voltage signal and the like from the first power supply circuit 18. When the power supply is interrupted due to a failure or the like in the first power supply circuit 18, the control unit 12 detects an abnormality such as a voltage drop from the voltage signal and outputs a control signal for turning on the transistor 183.

When the transistor 183 is turned on, power is supplied to the internal circuit of the emergency notification system terminal 1 by the power supply generated from the second power supply circuit 19, and the operation of the emergency notification system terminal 1 is continued. Becomes possible.

Further, the control unit 12 outputs a control signal for controlling lighting and blinking of the indicator 8 when the first power supply circuit 18 is abnormal. The indicator 8 is turned on and off by an LED according to the control signal.
Inform the user of the abnormality.

With such a configuration, the operation is normally performed by one power supply circuit out of a plurality of power supply circuits, and another power supply circuit is reserved as a spare. Further, when the one power supply circuit cannot supply power due to a failure or the like, it becomes possible to maintain the operation of the terminal device of the emergency notification system by supplying power from another power supply circuit, resulting in a traffic accident, sudden illness, etc. Even in the event of an emergency, it is possible to reliably perform the emergency call notification process.

(Third Embodiment) FIG. 3 shows a third embodiment of the present invention.
And a power supply circuit that supplies power to an internal circuit of the emergency notification system terminal device, and an emergency notification device that includes a power supply circuit that supplies power to a control unit that controls the operation of the emergency notification system terminal device. It is a system terminal device.

FIG. 3 is different from FIG. 1 in that the first power supply circuit 18 is a power supply circuit for supplying power to the control unit 12, and the second power supply circuit 19 is for supplying power to the control unit 12. And power is supplied to the internal circuit of the emergency notification system terminal device 1.

Normally, the first power supply circuit 18
The power is supplied to the control unit 12, and the internal circuit of the emergency notification system terminal device 1 is further controlled by the second power supply circuit 19.
And power is supplied to the control unit 12. Further, the control unit 12 monitors voltage signals from the first power supply circuit 18 and the second power supply circuit 19 and the like. When the power supply is interrupted due to the failure of the first power supply circuit 18, the power supply to the control unit 12 continues to operate by the power supply from the second power supply circuit 19.

The control section 12 outputs a control signal for controlling blinking and lighting of the indicator 8 when the first power supply circuit 18 is abnormal. The indicator 8 transmits an abnormality to the user by turning on or blinking the LED according to the control signal.

When the power supply is interrupted due to the failure of the second power supply circuit 19, the power supply to the emergency notification system terminal device 1 is stopped, and the operation cannot be continued. However, the control unit 12 controls the first power supply circuit 18
The operation is continued by the power supply from.

Further, the control section 12 outputs a control signal for controlling lighting and blinking of the indicator 8 when the second power supply circuit 19 is abnormal. The indicator 8 is turned on and off by an LED according to the control signal.
Inform the user of the abnormality.

With such a configuration, the control unit 1
The first power supply circuit 18 for supplying power to the power supply 2 can be constituted by a power saving type power supply circuit, and even when the power supply from the first power supply circuit 18 to the control unit 12 is interrupted, Since the operation of the control unit can be continued, it is possible to transmit the abnormality of the emergency notification system terminal device to the user.

(Fourth Embodiment) FIG. 4 shows a fourth embodiment of the present invention.
Power supply circuit for supplying power to the emergency notification system terminal device by power supply from the existing main battery in the vehicle, and power supply to the emergency notification system terminal device by power supply from the auxiliary battery. A power supply circuit that supplies power, and normally operates by power supply from a power supply circuit that supplies power with power from the main battery, and the power supply circuit cannot supply power due to a failure or the like. An emergency notification system terminal device capable of maintaining operation by power supply from a power supply circuit that supplies power from a power supply from an auxiliary battery.

FIG. 4 differs from FIG. 2 in that an auxiliary battery 20 is provided and power is supplied to the second power supply circuit 19 from the auxiliary battery 20. The auxiliary battery 20 is a sub-battery that supplies power when power cannot be supplied due to a failure of the main battery 5 or an abnormality of the first power supply circuit 18.

Normally, the first power supply circuit 18
Power is supplied to the internal circuit of the emergency notification system terminal device 1 and the control unit 12. Further, the control unit 12 monitors a voltage signal and the like from the first power supply circuit 18. When the power supply is interrupted due to a failure of the main battery 5 or the first power supply circuit 18, the control unit 12
An abnormality such as a voltage drop is detected from the voltage signal, and a control signal for turning on the transistor 183 is output.

When the transistor 183 is turned on, power is supplied to the internal circuit of the emergency notification system terminal device 1 by the power supply generated from the second power supply circuit 19, and the operation of the emergency notification system terminal device 1 is continued. Becomes possible.

Further, the control unit 12 outputs a control signal for controlling lighting and blinking of the indicator 8 when the first power supply circuit 18 is abnormal. The indicator 8 is turned on and off by an LED according to the control signal.
Inform the user of the abnormality.

With this configuration, the operation is normally performed by the power supply from the main battery 5 via the power supply circuit, and the auxiliary battery 20 and another power supply circuit are reserved as spares. Further, when the main battery 5 and the first power supply circuit 18 for supplying power from the main battery 5 are out of order, the operation of the emergency notification system terminal device can be maintained by supplying power from the auxiliary battery 20. become,
Even in the event of an emergency such as a traffic accident or sudden illness, it is possible to reliably perform the emergency call communication process.

Further, not only the battery but also the power supply circuit is provided with two circuits to cope with a failure of the main battery 5 or a failure of the power supply circuit, and the power supply from the main battery 5 is interrupted. In such a case, the operation can be reliably continued.

(Fifth Embodiment) FIG. 5 shows a fifth embodiment of the present invention.
The main difference between FIG. 1 and FIG. 1 is that a main control unit for controlling the entire emergency notification system terminal equipment and a sub-control unit for controlling communication such as an in-vehicle LAN are provided.

In FIG. 5, the emergency call notification means 11
In response to an outgoing request signal from the main control unit 101, a telephone call process is started with the telephone number input from the main control unit 101 to a communication partner corresponding to the telephone number via a base station of a communication carrier. When a signal for transition to a call, such as an outgoing response from a call partner or a busy signal, is received, a transition is made to voice call control or data communication control, and a signal notifying the transition to the call is sent to the main control unit 101. Output to Further, the main control unit 1
Information input from 01, such as the traveling direction and direction of the vehicle,
And a process of transmitting data such as position information to a center, which is a communication partner corresponding to the telephone number, via a communication carrier base station or the like.

The main control unit 101 monitors the power supply voltage information signal output from the second power supply circuit 19, and when receiving a signal indicating a voltage drop based on the power supply voltage information signal, determines that there is an abnormality and turns the indicator 8 on. To communicate the abnormality to the user. Further, the main control unit 101 transmits the data such as the position information acquired from the position information acquisition
Control for recording in the storage unit 15 is performed. Further, the main control unit 101 recognizes from the operation signal from the emergency call transmission button 3 that there is an emergency call request, and obtains from the position information acquisition processing unit 14 and starts the storage unit in order to start the emergency call contact processing. The data of the position information recorded in 15 is input. Further, the main control unit 101 acquires the telephone number of the center from the storage unit 15. Using the telephone number, a call origination request is made to the emergency call communication means 11. Further, when a response signal from the other party corresponding to the telephone number or a signal such as a busy signal which shifts to a busy state is received from the emergency call notification unit 11, it is recognized that the state has shifted to the talking state. Further, the main control unit 101 transmits the position information data including the history of the position information data obtained from the position information acquisition processing unit 14 to a center which is a communication partner corresponding to the telephone number via a base station of a communication carrier or the like. A process for outputting a signal for transmission to the emergency call notification means 11 is performed.

The gyro sensor 13 generates information such as the traveling direction and direction of the vehicle. Position information acquisition processing unit 14
Outputs data from the gyro sensor 13 and data such as position information generated from data received from the GPS antenna 4 by the GPS receiver 16 to the main control unit 101. The storage unit 15 is a memory for recording the telephone number of the center, the registration number of the vehicle equipped with the emergency call system terminal device 1, and the position information generated by the position information acquisition processing unit 14. A process of outputting data recorded by the request signal is performed.
The GPS receiver 16 uses the data obtained from the GPS antenna 4 to convert the position information data into the position information acquisition processing unit 1.
4 is a device that performs a process of outputting the data to the C.4. The hands-free device 17 performs signal processing and a level adjustment function to realize a transmission voice signal from a user and a reception voice signal from a center during a voice call in order to realize a hands-free voice call during an emergency call contact process. This signal processing device performs an echo cancellation process and a howling control process on an audio signal.

The first power supply circuit 18 supplies power to the internal circuit of the emergency notification system terminal device 1 and the main control unit 101, and outputs a signal indicating the power supply voltage to the sub control unit 102. The second power supply circuit 19 supplies power to the sub control unit 102 and outputs a signal indicating a power supply voltage to the main control unit 101. Sub-control unit 102
Is configured by a microcomputer or the like, performs communication control of the LAN, and performs a process of outputting an airbag state signal input from the airbag via the LAN to the main control unit 101.

The operation of the terminal device of the emergency call system according to the fifth embodiment of the present invention will be described. In FIG. 5, a first power supply circuit 18 supplies power from an internal circuit of the emergency notification system terminal device 1 and a main control unit 101 that controls operation of the emergency notification system terminal device 1 by power supply from the main battery 5. Generate. Further, the second power supply circuit 19 generates power for the sub-control unit 102 that performs communication control of the emergency notification system terminal device 1 by supplying power from the main battery 5.

By supplying these powers, the position information acquisition processing unit 14 receives data from the gyro sensor 13 and the GPS receiver 16 transmits the GP
The position information data is generated based on data received from the S antenna 4 or the like. The main control unit 101 performs a process of periodically acquiring data such as position information from the position information acquisition processing unit 14 and recording the data in the storage unit 15.

The user presses the emergency call button 3 in an emergency such as a traffic accident or sudden illness. Emergency call button 3
Outputs a signal indicating that the button has been pressed by the user to the main control unit 101. Main control unit 101
Recognizes from the operation signal from the emergency call transmission button 3 that an emergency call transmission request has been made, and starts the emergency notification communication process.

When the sub-control unit 102 receives a signal for requesting automatic emergency notification communication processing such as an airbag deployment signal via the in-vehicle LAN, the sub-control unit 102 outputs a signal for requesting automatic transmission of emergency notification to the main control unit 101. By doing so, the main control unit 101 starts the emergency call notification process.

The main control unit 101 obtains the accumulated position information data and the telephone number of the center from the storage unit 15, and makes a call request to the emergency call communication means 11 using the telephone number. Emergency call notification means 11
Uses the communication antenna 2 to start a telephone transmission process to a call partner corresponding to the telephone number via a base station of a communication carrier or the like.

[0098] When the emergency call notification means 11 receives an outgoing call response from the other party or a signal such as a busy signal that shifts to a busy state, it recognizes that the state has shifted to the talking state, and performs voice call control or data communication. A transition is made to control, and a signal notifying that the transition has been made during a call is output to the main controller 101. The main control unit 101 determines that the call is successful, and performs processing of transmitting data including the position information of the vehicle to the center corresponding to the telephone number corresponding to the telephone number via the base station of the communication carrier. .

The center is the emergency call system terminal equipment 1
When all of the position information data from the terminal has been received, a process for switching to a voice call is performed. When receiving the signal indicating the shift to the voice call, the emergency call notification unit 11 incorporated in the emergency call system terminal device 1 outputs the signal indicating the shift to the voice call to the main control unit 101. When the main control unit 101 receives the signal indicating the shift to the voice call, the main control unit 101 performs control to connect the emergency call notification unit 11 and the voice path of the hands-free device 17, and shifts to a voice call notification process.

During voice call contact processing, emergency call contact means 1
1 outputs a voice signal received from the center to the hands-free device 17. The hands-free device 17 obtains an audio level and frequency characteristics from the received audio signal using a signal processing circuit provided therein, performs processing such as raising the audio level of the received audio signal, and performs processing such as raising the speaker 7.
Output to The speaker 7 performs a process of sounding a received voice signal input from the hands-free device 17 and transmits the signal to a user.

The microphone 6 obtains a voice signal from the user and a received voice signal sounded from the speaker 7 and outputs them to the hands-free device 17. Hands-free device 17
When a transmission signal having a signal component similar to the audio level and frequency characteristics obtained from the received audio signal is input, the signal is determined to be an echo component of the received audio signal input by the microphone 6, and the echo component is removed. Do the processing to
It outputs to the emergency call communication means 11. Emergency call notification means 1
1 performs processing for receiving a transmission voice signal from the hands-free device 17 and transmitting the signal to the center, thereby enabling hands-free voice communication.

The main control unit 101 monitors the power supply voltage information signal from the second power supply circuit 19, and when an abnormal signal such as a voltage drop is input by this signal, the second power supply circuit 19 and the second power supply circuit (2) It determines that the sub-control unit 102 that acquires power from the power supply circuit 19 is abnormal, and outputs a control signal for instructing the indicator 8 to turn on and blink. The indicator 8 performs lighting and blinking processing of an LED or the like according to a control signal from the main control unit 101, and transmits an abnormality to a user. Further, the sub-control unit 102
The power supply voltage information signal from the first power supply circuit 18 is monitored, and when an abnormal signal such as a voltage drop is input by this signal, the first power supply circuit 18 and an emergency to acquire power from the first power supply circuit 18 Notification system terminal device 1,
It determines that the main control unit 101 is abnormal, and outputs a control signal for instructing the indicator 8 to light or blink. The indicator 8 performs lighting and blinking processing of an LED or the like according to a control signal from the main control unit 101, and transmits an abnormality to a user.

The function of detecting the voltage of the first power supply circuit 18 by the main control unit 101 and outputting a signal indicating the voltage of the first power supply circuit 18 from the main control unit 101 to the sub-control unit 102. Is provided, it becomes possible for the sub-control unit 102 to verify the operation of the first power supply circuit 18 and the main control unit 101. Further, the sub-control unit 10 detects the voltage of the second power supply circuit 19.
2 and the main control unit 101
The main control unit 101 can verify the operation of the second power supply circuit 19 and the sub-control unit 102 by providing a function of outputting a signal indicating the voltage of the second power supply circuit 19 to the Will be possible.

As described above, one of the two power supply circuits
One of the control units and the operation of one of the control units is stopped, or the main control unit 101 or the sub control unit 10
2 In the event of an abnormality such as an operation stop due to a failure of itself,
Another power supply circuit and another control unit maintain operation, and the another control unit can detect a failure of the power supply circuit and the control unit and transmit the failure to a user. .

(Sixth Embodiment) FIG. 6 shows a sixth embodiment of the present invention.
In the embodiment, two power supply circuits for supplying power to the emergency notification system terminal device are provided, and all of the emergency notification system terminal devices including the main control unit and the sub control unit from one power supply circuit are provided. This is an emergency notification system terminal device that supplies power to the internal circuit and supplies power to the sub-control unit from another power supply circuit.

FIG. 6 is different from FIG. 5 in that the first power supply circuit 18 also supplies power to the sub-controller 102 and the first power supply circuit 18 supplies power to the second power supply circuit 19. In addition, the second power supply circuit 19 has a function of preventing current from flowing into the first power supply circuit 18.

In FIG. 6, the first power supply circuit 18
The power supply from the main battery 5 controls the internal circuit of the emergency notification system terminal device 1 and the main control unit 101 that controls the operation of the emergency notification system terminal device 1 and communication control such as input of an airbag deployment signal from the in-vehicle LAN. The power of the sub-control unit 102 to be performed is generated. Further, the second power supply circuit 19 generates power for the sub-control unit 102 by supplying power from the main battery 5.

The main control section 101 monitors the power supply voltage information signal from the second power supply circuit 19, and when an abnormal signal such as a voltage drop is input by this signal, the main control section 101 determines that the second power supply circuit 19 is abnormal. Judgment is made, and a control signal for instructing lighting and blinking is output to the indicator 8. The indicator 8 performs lighting and blinking processing of an LED or the like according to a control signal from the main control unit 101, and transmits an abnormality to a user. Further, the sub-control unit 102 monitors a power supply voltage information signal from the first power supply circuit 18 and, when an abnormal signal such as a voltage drop is input by the signal, the first power supply circuit 18 and the first power supply circuit It judges that the emergency notification system terminal device 1 that obtains power from the main control unit 101 and the main control unit 101 are abnormal, and outputs a control signal for instructing the indicator 8 to turn on and blink. The indicator 8 is controlled by the control signal from the main
Lighting and blinking processing such as D is performed to notify the user of the abnormality.

As described above, since power is also supplied to the sub-control unit by the power supply from the power supply circuit, it is possible to avoid a state in which the sub-control unit becomes inoperable due to a power failure. The abnormality can be transmitted to the user by reliably detecting the abnormality by monitoring the sub-control unit. Further, since the current is prevented from flowing from the first power supply circuit 18 to the second power supply circuit 19, and furthermore, the current is prevented from flowing from the second power supply circuit 19 to the first power supply circuit 18.
The backflow of the current can be prevented.

(Seventh Embodiment) FIG. 7 shows a seventh embodiment of the present invention.
In the embodiment, two power supply circuits for supplying power to the emergency notification system terminal equipment are provided, and power is supplied from the main battery to the first power supply circuit and the second power supply circuit in a normal state. When the main control unit that monitors the power supply voltage information signal of the battery detects an abnormality of the main battery, the main control unit switches to the auxiliary battery in the emergency notification system terminal device, and switches the first power supply circuit and the second power supply circuit from the auxiliary battery. And power is supplied from the first power supply circuit to all internal circuits in the emergency notification system terminal device including the main control unit, and from the second power supply circuit. An emergency notification system terminal device that supplies power to the sub-control unit.

In FIG. 7, the main battery 5 supplies power to a first power supply circuit 18 and a second power supply circuit 19. The first power supply circuit 18 is connected to the main battery 5.
, And supplies the main control unit 12 with the voltage. Further, the second power control unit 19 controls the main battery 5.
Is supplied to the sub-control unit 21. The main control unit 12 and the sub control unit 21 realize each function by software for controlling the microcomputer, and execute mutual monitoring processing. Further, the main control unit 12 monitors the voltage of the main battery 5 and, when detecting an abnormality such as a drop in the voltage, controls the transistor 210 to supply power from the auxiliary battery 20.

The operation of the auxiliary battery 20 can be continued by supplying power to the first power supply circuit 18 and the second power supply circuit 19. Further, the main control unit 12 controls the lighting and blinking of the indicator 8 to notify the user that the power supply from the auxiliary battery 20 has been performed.

When the regular power communication between the control units cannot be performed due to the power cutoff from the first power supply circuit 18 or the abnormality of the main control unit 12, the sub control unit 21 determines that the main control unit 12 is abnormal. Lighting and blinking of the indicator 8 are controlled to notify the user.

If the regular communication between the control units cannot be executed due to the power cutoff from the second power supply circuit 19 or the abnormality of the sub control unit 21, the main control unit 12 determines that the sub control unit 21 is abnormal. To inform the user,
Lighting and blinking of the indicator 8 are controlled.

The voltage monitoring of the main battery 5 and the control of the power supply from the auxiliary battery 20 are performed by the sub control unit 2.
The control may be performed from 1 or the control may be performed by a logical sum (OR) from both control units of the main control unit 12 and the sub control unit 21.

In the above description of the embodiment, the indicator 8 as the illumination light emitting device is exclusively controlled to be turned on and off so as to transmit the abnormality to the user. The abnormality may be transmitted to the user by using the display device of the above, or the abnormality may be transmitted to the user by using a sounding device such as a buzzer. The abnormality may be transmitted to the user by using the generated sound reproducing device.

[0117]

As described above, the present invention has two power supply circuits so that even if power supply from one power supply circuit is impossible, operation can be continued by another power supply circuit. It is possible to provide an emergency call system terminal device having an excellent effect that it is possible to perform

[Brief description of the drawings]

FIG. 1 is a block diagram showing an emergency call system terminal device according to a first embodiment of the present invention;

FIG. 2 is a block diagram showing an emergency call system terminal device according to a second embodiment of the present invention;

FIG. 3 is a block diagram showing an emergency call system terminal device according to a third embodiment of the present invention;

FIG. 4 is a block diagram showing an emergency call system terminal device according to a fourth embodiment of the present invention;

FIG. 5 is a block diagram showing an emergency call system terminal device according to a fifth embodiment of the present invention.

FIG. 6 is a block diagram showing an emergency call system terminal device according to a sixth embodiment of the present invention.

FIG. 7 is a block diagram showing an emergency call system terminal device according to a seventh embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Emergency call system terminal device 2 Communication antenna 3 Emergency call transmission button 4 GPS antenna 5 Main battery 6 Microphone 7 Speaker 8 Indicator 11 Emergency call communication means 12 Control unit 13 Gyro sensor 14 Position information acquisition processing unit 15 Storage unit 16 GPS receiver 17 Hands-free device 18 First power supply circuit 19 Second power supply circuit 20 Auxiliary battery 22 First diode 23 Second diode 101 Main control unit 102 Sub-control unit 181 First diode 182 Second diode 183 Transistor 210 Transistor

Continued on the front page F term (reference) 5C086 AA32 BA22 CA02 DA03 DA08 DA25 EA05 EA06 EA08 EA11 EA41 EA43 EA45 FA06 FA11 5C087 AA02 AA03 AA11 AA23 AA37 AA44 BB20 BB21 BB32 BB46 BB14 FF16 FF12 FF12 FF19 FF23 GG06 GG18 GG67 GG69 5K067 AA35 BB21 DD28 EE02 FF19 JJ52 5K101 KK14 LL12 MM07 NN41 VV04 VV05

Claims (43)

[Claims] 1. A vehicle having a battery,
In emergency call system terminal equipment that automatically performs emergency call contact processing to the center that controls the emergency call system,
An emergency notification system terminal device comprising two power supply circuits for supplying power from the battery to the emergency notification system terminal device. 2. A control unit for controlling an emergency notification system terminal device when any one of the power supply circuits provided with the two-system circuit is abnormal, has a function of detecting the abnormality. Item 7. An emergency call system terminal device according to Item 1. 3. The control unit detects an abnormality of the power supply circuit by detecting at least one of a decrease in an output voltage from the power supply circuit and a decrease in an output voltage of the battery. An emergency call system terminal device according to claim 2. 4. The controller according to claim 1, wherein the controller compares an output voltage of the battery with an output voltage of the power supply circuit.
The emergency notification system terminal device according to claim 2, wherein an abnormality of the power supply circuit is detected. 5. The control unit determines that an abnormality occurs when the output voltage from the power supply circuit drops below a certain voltage, even though the output voltage of the battery does not drop below a certain voltage. The emergency notification system terminal device according to claim 4, wherein an abnormality of the power supply circuit is detected. 6. Normally, power is supplied from one power supply circuit, and at least one of a drop in output voltage from the one power supply circuit, a drop in battery voltage, or a case in which power supply is cut off is provided. The emergency notification system terminal device according to claim 1, wherein upon detection, the control unit starts power supply by the other power supply circuit. 7. Normally, power is supplied from one power supply circuit, and at least one of a drop in output voltage from the one power supply circuit, a drop in battery voltage, or a case in which power supply is cut off is provided. The emergency notification system terminal device according to claim 6, wherein upon detection, the control unit shuts off the one power supply circuit, switches to the other power supply circuit, and starts power supply. 8. Normally, power is supplied from one power supply circuit, and at least one of a drop in output voltage from the one power supply circuit, a drop in battery voltage, or a case in which power supply is cut off is provided. The emergency notification system terminal device according to claim 6, wherein upon detection, the control unit starts power supply from the other power supply circuit while power supply from the one power supply circuit is continued. . 9. The controller according to claim 1, wherein a condition for starting power supply from one of the power supply circuits is a constant voltage when the output voltage from the other power supply circuit or the output voltage from the battery, which normally supplies power, is constant. The emergency call system terminal device according to any one of claims 6 to 8, wherein the terminal device is set when the vehicle descends below. 10. When the power supply from one power supply circuit is being performed, and when the other power supply circuit that supplies power in a normal state is restored to a normal state, the control unit controls the one power supply circuit. The emergency notification system terminal device according to claim 7, wherein the power supply from the circuit is cut off, and the power is supplied from the other power supply circuit that normally supplies power. 11. When the power supply from one power supply circuit is being performed, and when the other power supply circuit that normally supplies power is restored to a normal state, the control unit supplies the one power supply circuit. 9. The emergency notification system terminal device according to claim 8, wherein the power supply from the circuit is interrupted, and the power is supplied from the other power supply circuit that normally supplies power. 12. The control section, which detects that the power supply circuit has been restored to a normal state, detects the output voltage from a power supply circuit that normally supplies power, and the output voltage is equal to or higher than a certain voltage. The emergency notification system terminal device according to claim 10 or 11, wherein the power supply is set to a power supply from a power supply circuit that supplies power in a normal state when the power supply voltage rises to a predetermined value. 13. The power supply is performed by two power supply circuits even in a normal state, and even when the output of one power supply circuit is interrupted, the operation can be continued by the power supply from the other power supply circuit. The emergency call system terminal device according to claim 1. 14. A power supply from a main battery,
The power supply from an auxiliary battery of the emergency notification system terminal device is supplied to the emergency notification system terminal device via a separate power supply circuit.
The described emergency call system terminal equipment. 15. An operation is normally performed by power supply from a power supply circuit that receives power supply from a main battery. The emergency notification system terminal device according to claim 14, wherein the operation is maintained by a power supply. 16. A control unit for controlling the emergency notification system terminal device, an internal circuit other than the control unit in the emergency notification system terminal device, and two power supply circuits. The emergency call system terminal device according to claim 1. 17. One of the power supply circuits supplies power to the control unit and the internal circuit, and when the output voltage of the power supply circuit drops or stops, power is supplied to the control unit from the other power supply circuit. 17. The method according to claim 16, wherein
The described emergency call system terminal equipment. 18. The power supply circuit for supplying power to the control section and the internal circuit from one power supply circuit, and supplying power to the control section from the other power supply circuit.
The described emergency call system terminal equipment. 19. The emergency notification system terminal device according to claim 1, further comprising a main control unit for controlling operation of the emergency notification system terminal device, and a sub control unit for controlling communication with an external device. . 20. The emergency notification system according to claim 19, wherein power is supplied to the main control unit from one power supply circuit, and power is supplied to the sub-control unit from the other power supply circuit. Terminal equipment. 21. The terminal device according to claim 19, wherein power is supplied from two power supply circuits to the main control unit and the sub control unit. 22. The power supply circuit for supplying power to the main control unit and the sub control unit from one power supply circuit, and supplying power to the main control unit from the other power supply circuit. Emergency call system terminal equipment. 23. The power supply circuit for supplying power to the main control unit and the sub-control unit from one power supply circuit, and supplying power to the sub-control unit from the other power supply circuit. Emergency call system terminal equipment. 24. The terminal device according to claim 19, wherein the operation of the power supply circuit is monitored by the main control unit. 25. The emergency notification system terminal device according to claim 19, wherein the operation of the power supply circuit is monitored by the sub control unit. 26. The emergency notification system terminal device according to claim 19, wherein the operation of the power supply circuit is monitored by both of the main control unit and the sub control unit. 27. The emergency notification system terminal device according to claim 19, wherein the operation of the power supply circuit for supplying power to the sub control unit is monitored by the main control unit. 28. The emergency notification system terminal device according to claim 19, wherein the operation of the power supply circuit for supplying power to the main control unit is monitored by the sub control unit. 29. The main control unit monitors the power supply circuit that supplies power to the main control unit,
The emergency notification system terminal device according to claim 19, wherein the monitoring result is output to the sub control unit. 30. The emergency control system according to claim 19, wherein the sub control unit monitors the power supply circuit that supplies power to the sub control unit, and outputs the monitoring result to the main control unit. Notification system terminal equipment. 31. The emergency notification system terminal device according to claim 19, wherein said main control unit is constituted by a control circuit including a microcomputer. 32. The terminal device according to claim 19, wherein said sub-control unit is constituted by a control circuit including a microcomputer. 33. The control unit according to claim 17, wherein the control unit determines that the output voltage from the power supply circuit drops below a certain level. The emergency call system terminal device described in any of the above. 34. The emergency notification system according to claim 2, wherein the control unit detects the abnormality or determines that the abnormality is abnormal, and transmits the abnormality to a user. Terminal equipment. 35. The emergency call according to claim 2, wherein the control section records the abnormality as abnormality history data when detecting or determining that the abnormality is abnormal. System terminal equipment. 36. The emergency notification system terminal device according to claim 35, wherein the control unit has a function of outputting an abnormality history to the outside of the emergency notification system terminal device. 37. The terminal apparatus according to claim 36, wherein the history of the abnormality is acquired from an external connection device connectable to the terminal apparatus for emergency call system. 38. A power supply circuit comprising: two circuits;
When power is supplied from one power supply circuit to all the internal circuits in the emergency notification system terminal device including the main control unit and the sub control unit, and when abnormality of one power supply circuit is detected, The apparatus according to claim 19, wherein power is supplied from another power supply circuit to all internal circuits in the emergency notification system terminal device including the main control unit and the sub control unit. Emergency call system terminal equipment. 39. The main control unit and the sub-control unit execute a process of realizing each function by software for controlling a microcomputer and monitoring each other, and further, the main control unit includes a main battery of a vehicle. 39. The emergency notification system terminal device according to claim 38, wherein if an abnormality is detected by monitoring the voltage of the emergency notification system terminal device, the operation is switched to power supply from an auxiliary battery of the emergency notification system terminal device to continue the operation. 40. The apparatus according to claim 39, wherein the main control unit controls lighting and blinking of an indicator to notify a user that the main control unit has switched to power supply from the auxiliary battery. Emergency call system terminal equipment described in. 41. The sub-control unit determines that the main control unit is abnormal when regular communication between the control units cannot be performed due to power cutoff from the first power supply circuit or abnormality of the main control unit. 40. The emergency call system terminal device according to claim 39, wherein the user is notified of the abnormality by performing lighting and blinking control of the indicator. 42. When regular communication between the control units cannot be performed due to power cutoff from the second power supply circuit or an abnormality in the sub control unit, the main control unit determines that the sub control unit is abnormal. 40. The emergency call system terminal device according to claim 39, wherein the user is notified of the abnormality by performing lighting and blinking control of the indicator. 43. An emergency call center for controlling an emergency call system terminal device according to any one of claims 1 to 42 and receiving an emergency call transmission signal from said emergency call system terminal device. And an emergency call system.