JP2001250178A - Terminal equipment for emergency notification system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal equipment for emergency notification system which can display abnormality of equipment by an indicator even if a control part becomes unable to operate. SOLUTION: The terminal equipment for emergency notification system 1 which is mounted on a vehicle and gives notice to an emergency notification center in case of emergency is provided with a display means 8 which displays abnormality of the terminal equipment, a control means 12 which detects the abnormality of the terminal equipment and outputs a control signal for controlling the display of the display means, and a display control means 19 which performs ON/OFF control over the display means according to the control signal inputted from the control means, and the display control means performs the ON/OFF control over the display means so that even if the control means becomes abnormal and is unable to output the control signal, the display means displays the abnormality. Even if the control means which controls the operation of the whole equipment enters an abnormal state and becomes unable to operate, the abnormality of the equipment can be transmitted to the user through the display means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device for an emergency call system which is mounted on a vehicle and transmits data such as position information of the vehicle to a center in an emergency, and in particular, an abnormality of the terminal device is reliably displayed on an indicator. It is made possible.

[0002]

2. Description of the Related Art Hitherto, a system has been developed for automatically reporting an emergency that has occurred in a car or the like to a police or an emergency call center through a terminal device mounted on the vehicle. This terminal device is equipped with an emergency call notification means that performs a call origination process to the other party via the carrier's base station etc. in an emergency, and when a traffic accident or sudden illness occurs, this terminal call Through means, police and emergency reporting centers, such as the center responsible for the emergency reporting system,
Data such as current vehicle position information and registered vehicles are transmitted, and an emergency vehicle dispatch request is made.

[0003] In addition, this emergency call system terminal equipment,
The state of the terminal device, for example, at normal times other than the emergency call state,
The control unit (microcomputer) that controls the operation of the terminal device is equipped with an indicator that changes the lighting state in response to an emergency call or when the device is abnormal. When an emergency call is made, a control signal for causing the indicator to display the emergency call is sent. Also, the control unit
The status of each part is grasped based on the signals obtained from each part of the terminal device, and if any part is abnormal, a signal indicating the abnormality of the terminal device is sent to the indicator. Displays the error of the terminal device.

[0004]

However, in the conventional emergency call system terminal equipment, the control unit (microcomputer) checks the state of the peripheral circuits other than the control unit, and if an abnormality is found in the peripheral circuit, the control is performed. Since the unit controls the display of abnormalities of the indicator, if an abnormality occurs in the control unit itself and the control unit becomes inoperable, the abnormality of the terminal device cannot be transmitted to the user through the indicator. There was a problem called.

[0005] The present invention is to solve such a conventional problem, and to provide an emergency notification system terminal device that can display an abnormality of the device by an indicator even when the control unit is disabled. It is an object.

[0006]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in an emergency notification system terminal device which is mounted on a vehicle and performs a notification to a center in charge of the emergency notification system in an emergency, the abnormality of the emergency notification system terminal device is determined. Display means for displaying, detecting an abnormality of the terminal device of the emergency call system,
Control means for outputting a control signal for controlling the display of the display means, and display control means for controlling ON / OFF of the display means based on the control signal input from the control means, wherein the display control means includes Even when an error occurs and the control signal cannot be output, the display means displays the error,
It is configured to control ON / OFF of the display means.

Therefore, even if the control means for controlling the overall operation of the device shifts to an abnormal state and becomes inoperable, the abnormality of the device can be transmitted to the user through the display means.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.

(First Embodiment) As shown in FIG. 1, an emergency call system terminal device according to a first embodiment comprises: an antenna 2 for transmitting / receiving to / from a base station of a communication carrier; An emergency call transmission button 3 that generates a signal for starting transmission processing when pressed by a person in case of a traffic accident or sudden illness, a GPS antenna 4 that receives data from a GPS satellite, and supplies power to electrical equipment of the vehicle. Emergency call system terminal equipment 1
Battery 5 for supplying power to the telephone, a microphone 6 for outputting a user's voice to the emergency notification system terminal device 1 when an emergency notification is given by voice, and a sound signal received from the emergency notification center. And an indicator 8 for notifying the user of the state of the emergency notification system terminal device 1 outside the terminal device main body 1.

A control unit 12 for controlling an emergency call communication process based on an operation signal from an emergency call transmission button 3 and a transmission request signal from the control unit 12 are provided in the main body of the emergency notification system terminal device 1. Emergency communication means 11 for communicating with the other party of the telephone number input from the control unit 12, and a gyro sensor 13 for generating information such as the traveling direction and direction of the vehicle.
A GPS receiver 16 for obtaining position information and the like based on data obtained from the GPS antenna 4, and a gyro sensor 13
A position information acquisition processing unit 14 that generates position information based on data from the GPS receiver 16 and information input from a GPS receiver 16 and outputs the generated position information to the control unit 12, and a telephone number such as a police station or an emergency call center, and the emergency call system terminal device 1. A storage unit 15 that stores the registration number of the vehicle to be mounted and the position information input from the position information acquisition processing unit 14, and a hands-free unit that performs signal processing such as echo cancellation processing and howling control for realizing hands-free voice communication. The apparatus includes a device 17 and an indicator control unit 19 for controlling lighting of the indicator 8.
The indicator 8 has an LED or the like as a lighting device.

The operation of this emergency call system terminal device will be described. The position information acquisition processing unit 14 generates position information data using 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 processing 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 to the control unit 12 a signal indicating that the user has pressed the button. The control unit 12 recognizes from the operation signal from the emergency call transmission button 3 that there is an emergency call transmission request, and starts the emergency call processing. The control unit 12 is a storage unit
From 15, it obtains the accumulated data such as location information and the telephone number of the center that controls the emergency call system such as the police and emergency call center, and makes a call to the emergency call contact means 11 using the telephone number. Make a request.

The emergency call communication means 11 uses the communication antenna 2 to start a telephone call process to a call partner corresponding to the telephone number via a base station of a communication carrier or the like.

When receiving an outgoing call response from the other party 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 the talking state, and performs voice call control or With the shift to data communication control,
A signal notifying that the call has been transferred is output to the control unit 12.

When the control unit 12 identifies that the call was successful, the control unit 12 outputs the position information history data such as the traveling direction, direction, and position of the vehicle obtained from the position information acquisition processing unit 14 to the emergency call notification unit 11. Send to the center.

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

At the time of voice call communication processing, the emergency call notification means 11 outputs a voice signal received from a center that controls the emergency call system to the hands-free device 17. The hands-free device 17 uses a signal processing circuit to perform processing such as raising the audio level of the received audio signal, and
Output to The speaker 7 converts the received voice signal input from the hands-free device 17 into voice and transmits the voice to the user.

The microphone 6 obtains an audio signal from the user and a received audio signal sounded from the speaker 7 and outputs them to the hands-free device 17. The hands-free device 17 removes the echo component input from the microphone, and outputs only the user's voice signal to the emergency call communication means 11. The emergency call communication means 11 transmits the transmission voice signal to the center.

The control unit 12 checks the status of each unit of the emergency notification system terminal device 1, and when they are operating normally, sends a control signal indicating a normal state to the indicator control unit 19, The control unit 19 controls lighting of the indicator 8 based on the control signal so that the indicator 8 indicates a normal state. When an abnormality is found in the state of each part of the emergency notification system terminal device 1, the control unit 12 sends a control signal indicating an abnormal state to the indicator control unit 19, and the indicator control unit 19 sends the control signal to the control signal. Based on this, the lighting control of the indicator 8 is performed so that the indicator 8 displays the abnormal state. Therefore, the user can determine whether the emergency notification system terminal device 1 is normal or abnormal by looking at the indicator 8.

Further, the control unit 12 itself shifts to an abnormal state,
When it is impossible to control the operation of the emergency notification system terminal device 1 or transmit a control signal designating the display of the indicator 8, the indicator control unit 19 controls the indicator 8 to display an abnormal state on the indicator 8. Lighting control is performed. Therefore, even if the control unit 12 is abnormal, the user can know the abnormality of the emergency notification system terminal device 1 from the display of the indicator 8.

The specific configuration of the indicator control unit 19 will be described in detail in the following embodiments.

(Second Embodiment) FIG. 2 shows a control unit 12 and an indicator control unit 19 of the emergency call system terminal equipment 1.
And the relationship with the indicator 8 are excerpted and shown.

The indicator 8 includes an LED 82 that emits light,
A resistor 4 (81) for limiting power supply to the LED 82;

The indicator control unit 19 includes a transistor 19 for turning on / off the power supply to the indicator 8.
1, a resistor 2 (193) for limiting the power supplied to the indicator 8 through the transistor 191;
A resistor 1 (192) for preventing an excessive control signal from being input to the base of the power supply and a resistor 3 (194) pulled up to a power supply.

The control unit 12 is connected to the resistor 1 (192), and the control signal output from the control unit 12 is input to the base of the transistor 191 via the resistor 1. Pull-up resistor 3 (19
4) is connected between the input terminal of the control signal from the control unit 12 and the power supply.

The LED 82 of the indicator 8 of this device is
For example, it emits red light and is off when the emergency notification system terminal device 1 is normal, and the emergency notification system terminal device 1
Lights when is abnormal.

The control unit 12 is an emergency call system terminal 1
Is normal, an “L” signal is output. This "L" signal is input to the base of the transistor 191 via the resistor 1 (192), so that the transistor 191 is turned off. Therefore, the power supply to the indicator 8 is cut off and the LED 82
Is turned off.

The control unit 12 stops the output of the "L" signal when the control unit 12 itself is normal, but an abnormality occurs in the emergency notification system terminal device 1. In this case, since power is input to the base of the transistor 191 via the pull-up resistor 3 (194), the transistor 191 is turned ON, and the indicator 8 is supplied to the indicator 8 via the transistor 191 and the resistor 2 (193). Is supplied, and the red LED 82 is turned on. Therefore, the user can recognize that the emergency notification system terminal device 1 is abnormal. When this abnormality occurs, the control unit 12 outputs an “H” signal to
The ED 82 may be turned on.

On the other hand, when an abnormality occurs in the control unit 12 and no control signal is output from the control unit 12, power is input to the base of the transistor 191 via the pull-up resistor 3 (194), and the transistor 191 is turned on. Is turned on, and the red LED 82 of the indicator 8 is turned on. Therefore, the user can recognize that the emergency notification system terminal device 1 is abnormal.

When an abnormality occurs in the emergency notification system terminal device 1, an "L" signal is output intermittently from the control unit 12 and the LED 82 of the indicator 8 is blinked to notify the user of the abnormality. When the control unit 12 itself fails and no control signal is output from the control unit 12, the transistor 191 is turned on by the power supply input through the pull-up resistor 3 (194), and the LED 8 of the indicator 8 is turned on.
2 is in a continuous lighting state, the user looks at the indicator 8 and sees whether an abnormality has occurred in the control unit 12 of the emergency notification system terminal device 1 or an abnormality has occurred in a part other than the control unit 12. Can be identified.

Further, in FIG. 2, in a device in which the terminal connected to the power supply side of the resistor 3 (194) is connected to GND and the resistor 3 (194) is operated as a pull-down resistor, the device operates normally. It is possible to display the LED 82 of the indicator 8 so that the LED 82 is turned on and the LED 82 is turned off when an abnormality occurs.

In this case, the LED 82 is, for example, an LED that emits green light, and the controller 12 outputs an “H” signal when the emergency notification system terminal device 1 is normal. This "H" signal is input to the base of the transistor 191 via the resistor 1 (192), so that the transistor 191 is turned on, and power is supplied to the indicator 8 via the transistor 191 and the resistor 2 (193). The green LED 82 is turned on. Therefore, the user can recognize that the emergency notification system terminal device 1 is normal.

The control unit 12 stops outputting the "H" signal when the control unit 12 itself is normal, but an abnormality occurs in the emergency notification system terminal device 1. In this case, the base of the transistor 191 is connected to GND via the pull-down resistor 3 (194).
It becomes FF, the power supply to the indicator 8 is cut off,
The LED 82 is turned off. In this case, the “L” signal may be output from the control unit 12 to turn off the LED 82.

Similarly, when an abnormality occurs in the control section 12 itself and no control signal is output from the control section 12, the transistor 191 whose base is connected to GND via the pull-down resistor 3 (194) is similarly provided. Is turned off, and the green LED 82 of the indicator 8 is turned off. Therefore, the user
In any case, by turning off the LED 82, it is possible to recognize that the emergency notification system terminal device 1 is abnormal.

Further, when the emergency notification system terminal device 1 is in the emergency notification contact state, the control unit 12 outputs “H” from the control unit 12.
The signal is output intermittently and the green LED of indicator 8
By flashing 82, it is possible to inform the user that the emergency call is currently in contact.

The indicator 8 is provided with a red LED and a green LED. The red LED is turned on by the above-described circuit having a pull-up resistor, and the green LED is turned on by the above-described circuit having a pull-down resistor. You may make it control.

As described above, in this apparatus, even if an abnormality occurs in the control unit that controls the entire emergency notification system terminal device and also controls the lighting of the indicator, the abnormality is displayed on the indicator, and the emergency is displayed to the user. It is possible to report that the notification system terminal device is in an abnormal state.

(Third Embodiment) In the third embodiment,
A case in which lighting of the indicator is controlled using a logic circuit will be described.

In this apparatus, as shown in FIG.
12 has two control lines, and an indicator control unit 19 is an EXNOR element to which a control signal is input from the two control lines.
197, a pull-up resistor 5 (195) connected to each control line,
And a pull-up resistor 6 (196). The output of the EXNOR element 197 of the logic circuit is input to the resistor 1 (192). The configuration after the resistor 1 (192) is the same as that of the second embodiment (FIG. 2).

The LED 82 of the indicator 8 of this device is
For example, it emits red light and is off when the emergency notification system terminal device 1 is normal, and the emergency notification system terminal device 1
Lights when is abnormal.

The control unit 12 controls the emergency call system terminal equipment 1
Is normal, an "L" signal is output to only one of the two control lines. At this time, the EXNOR element 197 outputs “L”
The signal is output, the transistor 191 is turned off, and the LED 82 of the indicator 8 is turned off.

When the emergency notification system terminal device 1 is abnormal, the control section 12 outputs an "L" signal to both of the two control lines, or outputs an "H" signal to both. At this time, an “H” signal is output from the EXNOR element 197, the transistor 191 is turned on, and the red LED 82 of the indicator 8 is turned on.

Also, the control unit 12 itself becomes abnormal and the control unit
When the control signal is not output from 12, the EXNOR element is pulled up by the resistor 5 (195) and the resistor 6 (196).
An "H" signal is input to two terminals 197. Therefore, EX
An "H" signal is output from the NOR element 197, the transistor 191 is turned on, and the red LED 82 of the indicator 8 is turned on.
Lights up. Therefore, even if an abnormality occurs in the circuit of the emergency notification system terminal device 1 excluding the control unit 12, the control unit 12
Even when an abnormality has occurred in itself, the red LED 82 of the indicator 8 is lit to notify the user of the abnormality.

In the configuration of FIG. 3, the resistor 5 (19
5) and each terminal connected to the power supply side of the resistor 6 (196) is connected to GND, and the resistor 5 (195) and the resistor 6 (196) are connected.
Can be changed to a circuit that operates as a pull-down resistor. In this device, when the emergency notification system terminal device 1 is normal, the control unit 12 outputs an “H” signal to only one of the two control lines. At this time, the EXNOR element
An “L” signal is output from 197, and transistor 191 is
It becomes FF, and the LED 82 of the indicator 8 goes out. When the emergency notification system terminal device 1 is abnormal, the control unit 12 outputs an “H” signal to both of the two control lines,
Alternatively, an “L” signal is output to both. At this time, EX
An "H" signal is output from the NOR element 197, the transistor 191 is turned on, and the red LED 82 of the indicator 8 is turned on.
Lights up. Even when the control unit 12 itself is abnormal, EXNOR is performed through the pull-down resistor 5 (195) and the resistor 6 (196).
An “L” signal is input to two terminals of the element 197,
An "H" signal is output from the XNOR element 197, the transistor 191 is turned on, and the red LED 8 of the indicator 8 is turned on.
2 lights up.

Also, in the configuration of FIG.
In a circuit configuration in which the XNOR element 197 is changed to an OR element and the resistance 5 (195) and the resistance 6 (196) remain pull-up resistance, when the emergency notification system terminal device 1 is normal, the control unit 12 switches to 2 Output an “L” signal to both control lines
It is possible to turn off the ED 82 and, when the emergency notification system terminal device 1 is abnormal, output an “H” signal to at least one of the two control lines from the control unit 12 to turn on the LED 82. In this case, even when the control unit 12 becomes abnormal, the pull-up resistor 5 (195) and the pull-up resistor 6 (196)
The LED 82 lights up for a signal input through the. Therefore, even when an abnormality occurs in the circuit of the emergency notification system terminal device 1 excluding the control unit 12 or when an abnormality occurs in the control unit 12 itself, the LED 82 of the indicator 8 is turned on.
The user can be notified of the abnormality.

Also, in the configuration of FIG.
In the circuit configuration in which the XNOR element 197 is changed to a NOR element and the resistance 5 (195) and the resistance 6 (196) are changed to a pull-down resistance, when the emergency notification system terminal device 1 is normal, the control unit 12 outputs two signals. An "H" signal is output to at least one of the control lines to turn off the LED 82. If the emergency notification system terminal device 1 is abnormal, the control unit 12 sends an "L" signal to both of the two control lines. It is possible to output and light LED82. In this case, even when the control unit 12 becomes abnormal, the pull-down resistor 5 (195) and the pull-down resistor 6 (196)
The LED 82 lights up for a signal input through the. Therefore, even when an abnormality occurs in the circuit of the emergency notification system terminal device 1 excluding the control unit 12 or when an abnormality occurs in the control unit 12 itself, the LED 82 of the indicator 8 is turned on.
The user can be notified of the abnormality.

Also, in the configuration of FIG.
In a circuit configuration in which the XNOR element 197 is changed to an AND element, and the resistance 5 (195) and the resistance 6 (196) remain pull-up resistances, when the emergency notification system terminal device 1 is normal, the control unit 12 An "L" signal is output to at least one of the two control lines to turn off the LED 82, and when the emergency notification system terminal device 1 is abnormal, the control unit 12 outputs "H" to both of the two control lines. It is possible to output a signal to light LED82. In this case, even when the control unit 12 becomes abnormal, the pull-up resistor 5 (195) and the pull-up resistor 6 (19)
The LED 82 lights up for the signal input through 6).
Therefore, even when an abnormality occurs in the circuit of the emergency notification system terminal device 1 excluding the control unit 12 or when an abnormality occurs in the control unit 12 itself, the LED 82 of the indicator 8 is turned on to notify the user of the abnormality. Can be.

Also, in the configuration of FIG.
The XNOR element 197 is changed to a NAND element, and the resistance 5 (195)
In the circuit configuration in which the resistor 6 (196) is changed to a pull-down resistor, when the emergency notification system terminal device 1 is normal, the control unit 12 outputs an “H” signal to both of the two control lines to turn the LED 82 on. Turns off, and the emergency call system terminal 1
Is abnormal, the control unit 12 can output an "L" signal to at least one of the two control lines to turn on the LED 82. In this case, even when the control unit 12 becomes abnormal, the pull-down resistor 5 (195) and the pull-down resistor 6 (19)
The LED 82 lights up for the signal input through 6).
Therefore, even when an abnormality occurs in the circuit of the emergency notification system terminal device 1 excluding the control unit 12 or when an abnormality occurs in the control unit 12 itself, the LED 82 of the indicator 8 is turned on to notify the user of the abnormality. Can be.

Also, in the configuration of FIG.
In a circuit configuration in which the XNOR element 197 is changed to an EXOR element, one of the resistors 5 (195) and 6 (196) is changed to a pull-up resistor, and the other is changed to a pull-down resistor, the emergency notification system terminal device 1 operates normally. In this case, the control unit 12 outputs an “L” signal to both of the two control lines, or outputs an “H” signal to both, to turn off the LED 82, and when the emergency call system terminal device 1 is abnormal. , The control section 12 outputs an “L” signal to one of the two control lines and an “H” to the
Can be turned on. In this case, even when the control unit 12 becomes abnormal, the LED 82 is turned on due to a signal input through the resistor 5 (195) and the resistor 6 (196), one of which is a pull-up resistor and the other is a pull-down resistor. Therefore,
The LED 82 of the indicator 8 can be turned on to notify the user whether the abnormality occurs in the circuit of the emergency notification system terminal device 1 other than the control unit 12 or when the control unit 12 itself has an abnormality. .

As described above, in the device that controls the lighting of the indicator by using the logic circuit, it is possible to output a control signal in various forms from the two terminals of the control unit and display an abnormal state on the indicator. Yes, at this time, even if an abnormality has occurred in the control unit itself, the indicator can be turned on and the abnormal state can be transmitted to the user by the action of the pull-up resistor or the pull-down resistor.

[0051]

As is apparent from the above description, in the emergency notification system terminal device of the present invention, the control unit for controlling the overall operation of the device, including the lighting control of the indicator, shifts to an abnormal state and operates. Even in the case where it becomes impossible, the abnormality of the device can be transmitted to the user through the indicator.

[Brief description of the drawings]

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

FIG. 2 is a block diagram showing structures of a control unit, an indicator control unit, and an indicator according to a second embodiment of the present invention;

FIG. 3 is a block diagram illustrating structures of a control unit, an indicator control unit, and an indicator according to a third embodiment of the present invention.

[Description of Signs] 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 power control device 19 indicator control unit 81 resistor 4 82 LED 191 transistor 192 resistor 1 193 resistor 2 194 resistor 3 195 resistor 5 196 resistor 6 197 EXNOR element

Claims (15)

[Claims] 1. An emergency call system terminal device mounted on a vehicle and notifying a center in charge of an emergency call system in an emergency, a display means for displaying an abnormality of the emergency call system terminal device, and an emergency call system terminal Control means for detecting a device abnormality and outputting a control signal for controlling display on the display means; display control means for controlling ON / OFF of the display means based on a control signal input from the control means; With
The display control means controls ON / OFF of the display means so that the display means displays the abnormality even when an abnormality occurs in the control means and the control signal cannot be output. Emergency call system terminal equipment. 2. The emergency display device according to claim 1, wherein the display unit includes an illuminating device such as an LED, and displays an abnormality of the emergency notification system terminal device by turning on or off the illuminating device. Notification system terminal equipment. 3. The display control means includes switch means for turning on / off a power supply to the lighting device. The switch means operates according to a control signal input from the control means, and controls the control means. 3. The emergency notification system terminal device according to claim 2, wherein when the control signal is not input from the terminal, the terminal operates by a signal input through a pull-up resistor or a pull-down resistor. 4. 4. The transistor according to claim 3, wherein said switch means comprises a transistor, and a control signal inputted from said control means and a signal inputted through said pull-up resistor or pull-down resistor are inputted to a base of said transistor. Emergency call system terminal equipment described in. 5. The emergency call system terminal device according to claim 4, wherein the pull-up resistor is connected between an input terminal of the display control unit to which the control signal is input and a power supply. . 6. The emergency call system terminal device according to claim 4, wherein the pull-down resistor is connected between an input terminal of the display control means to which the control signal is input and GND. 7. The display control means for turning on a lighting device of the display means when the emergency notification system terminal equipment is abnormal and when the control means is abnormal. Item 6. The emergency call system terminal device according to item 5. 8. The display control means for turning off a lighting device of the display means when the emergency notification system terminal equipment is abnormal and when the control means is abnormal. Item 7. The emergency call system terminal device according to Item 6. 9. A control signal is input from the control means through two terminals, and these control signals are input to a logic circuit.
7. The emergency notification system terminal device according to claim 5, wherein an output of the logic circuit is input to a base of the transistor, and the pull-up resistor or the pull-down resistor is connected to each of the two terminals. . 10. The logic circuit comprises an EXNOR circuit, wherein the pull-up resistor or the pull-down resistor is connected to both of the two terminals, and both control signals input from the control means through the two terminals are "H" or Both "L"
The emergency notification system terminal device according to claim 9, wherein in the case of (1), the illumination device of the display means is turned on to display an abnormality. 11. The logic circuit according to claim 1, wherein said pull-up resistor is connected to both of said two terminals, and at least one of control signals input from said control means through said two terminals is "H". The emergency notification system terminal device according to claim 9, wherein the illumination device of the display means is turned on to display an abnormality. 12. The logic circuit comprises a NOR circuit,
When the pull-down resistor is connected to both of the two terminals, and the control signals input from the control means through the two terminals are both "L", the illumination device of the display means is turned on to indicate an abnormality. An emergency call system terminal device according to claim 9, wherein 13. The logic circuit comprises an AND circuit,
When the pull-up resistor is connected to both of the two terminals, and the control signals input from the control means through the two terminals are both "H", the illumination device of the display means is turned on to indicate an abnormality. The emergency call system terminal device according to claim 9, characterized in that: 14. The logic circuit comprises a NAND circuit, wherein the pull-down resistor is connected to both of the two terminals,
The emergency notification device according to claim 9, wherein when at least one of the control signals input from the control means through the two terminals is "L", the illumination device of the display means is turned on to display an abnormality. System terminal equipment. 15. The logic circuit comprises an EXOR circuit, wherein one of the two terminals is connected to the pull-up resistor and the other is connected to the pull-down resistor, and one of the control signals input from the control means through the two terminals is “1”. 10. The emergency notification system terminal device according to claim 9, wherein, when "H" and the other is "L", the illumination device of the display means is turned on to display an abnormality.