JP3302498B2 - Automatic inspection system for voice synthesis IC in fire alarm system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire alarm system and, more particularly, to a fire receiver and a local sound system incorporating a voice synthesis circuit.

[0002]

2. Description of the Related Art Conventionally, a fire receiver and a local sound device for alarming the occurrence of a fire are provided with an alarm circuit such as a buzzer and a bell. When a fire occurs, an alarm is generated by sounding a buzzer or a bell. Like that. In recent years, instead of a buzzer sound, a voice is generated by a voice synthesizing circuit, and the voice is used to warn of a fire or the like, in terms of ease of use and intelligibility.

[0003]

In the above conventional example,
The voice synthesizing circuit is composed of an IC (integrated circuit), and it is necessary to periodically inspect the voice synthesizing IC. A person listening to this alert may misunderstand that a fire has actually occurred. In order to prevent this misunderstanding, it is conceivable to output a sound indicating that the test is being performed in addition to the sound indicating the occurrence of a fire when the sound synthesis IC is inspected. However, in this case, although the capacity of the voice synthesis IC is limited, the voice or the like indicating that the test is being performed is also stored, so that the required capacity is required. There is a problem in that absolutely necessary voices such as fire alarm voices must be reduced.

[0004] The present invention is directed to a voice notification system for a fire alarm system in which a person listening to voice synthesized by a voice synthesis IC does not mistakenly recognize that a fire has occurred without reducing the amount of voice that can be stored in the voice synthesis IC. An object of the present invention is to provide an automatic inspection device for a synthesis IC.

[0005]

According to the present invention, a strobe signal for IC inspection is supplied to an IC for speech synthesis in a fire alarm system, and the strobe signal for IC inspection and a busy signal output from the IC for speech synthesis are transmitted. Is detected at the same time, the IC for speech synthesis is judged to be normal, and the IC for IC inspection is used only for a period of time such that it is not possible to recognize that a fire has occurred even if the speech synthesized by the speech synthesis IC is heard. Is applied to the voice synthesis IC.

[0006]

According to the present invention, a voice synthesizing I in a fire alarm system is provided.
A strobe signal for IC inspection is supplied to C. When the strobe signal for IC inspection and the busy signal output from the IC for speech synthesis can be simultaneously detected,
A strobe signal for IC inspection is applied to the voice synthesis IC only for a period of time when it is determined that C is normal and the voice synthesized by the voice synthesis IC cannot be recognized as a fire even if the synthesized voice is heard. Therefore, without reducing the amount of voice that can be stored in the voice synthesis IC,
People listening to the synthesized voice will not misunderstand that a fire has occurred.

[0007]

FIG. 1 is a block diagram showing an automatic voice synthesizing IC inspection apparatus 1 in a fire alarm system according to an embodiment of the present invention.

In the automatic voice synthesizing IC inspection apparatus 1, a CPU (microcomputer) 10 controls the entire automatic voice synthesizing IC automatic inspection apparatus 1. The flip-flop 20 receives 8-bit data D7 to D0 from the CPU 10, holds the data, and supplies the held data D7 to D0 to the voice synthesis IC 30.

The voice synthesizing IC 30 outputs a voice signal corresponding to the data D7 to D0 input from the flip-flop 20 when receiving the strobe signal from the CPU 10. The filter 32 is a voice synthesis IC.
The amplifier circuit 33 amplifies the output signal of the filter 32 to a predetermined level, and outputs a signal from the speaker 34.
Converts an audio signal into audio.

IC test strobe signal generation circuit 35
Generates a strobe signal for IC inspection only for a time (for example, 0.1 second) that cannot be recognized as a fire when the voice synthesized by the voice synthesis IC 30 is heard. Circuit.

The AND circuit 41 outputs a normal signal indicating that the voice synthesis IC 30 is normal when receiving both the IC test strobe signal and the busy signal output from the voice synthesis IC 30. Is a circuit that performs
The D circuit 42 is a circuit that outputs an abnormal signal indicating that the voice synthesis IC 30 is abnormal when it receives the IC inspection strobe signal but does not receive the busy signal output from the voice synthesis IC 30. is there.

An inverter 42I for inverting a signal at a busy signal output terminal and a normal strobe signal are connected to an
Diode 36 for preventing it from flowing into D circuit 41 and the like
Are provided. The CPU 10, the voice synthesizing IC 30, and the like are incorporated in a fire alarm system, that is, a fire receiver.

Next, the operation of the above embodiment will be described.

When a signal processing circuit (not shown) of the fire receiver receives a fire signal from the fire detector and an alarm is required, first, the signal processing circuit sends the signal to the CPU 10.
The control signal is output to Thereafter, in order to generate a sound from the speaker 34 using the voice synthesis IC, the CP
U10 outputs predetermined data D7 to D0, and this data is temporarily held in the flip-flop 20, and is supplied from the flip-flop 20 to the voice synthesis IC 30, and a voice signal corresponding to the data D7 to D0 is output from the IC The signal is output, amplified by the amplifier circuit 33, and a sound is generated from the speaker.

When the operation of the voice synthesis IC 30 is to be tested, the CPU 10 causes the IC test strobe signal generation circuit 35 to generate a test strobe signal.
The test strobe signal is supplied to the speech synthesis IC 30. If the speech synthesis IC 30 is normal, the data D7 to D input to the speech synthesis IC 30 at this time are output.
An audio signal corresponding to the content of 0 is output, and at the same time,
A busy signal is output from the voice synthesis IC 30. AN
Since the D circuit 41 receives the inspection strobe signal and the busy signal simultaneously, it outputs a normal signal indicating that the voice synthesis IC 30 is normal. Therefore, the normal signal output from the AND circuit 41 causes the voice synthesis IC 30
Is normal.

The test strobe signal is an IC3 for speech synthesis.
0, an audio signal corresponding to the data D7 to D0 input to the audio synthesis IC 30 is output,
The sound corresponding to this is generated from the speaker 34, but since the time during which the test strobe signal is output is very short, even if a person hears the sound generated from the speaker 34, it may be erroneously recognized as a fire. There is no.

In the above embodiment, the voice synthesis IC 30
It is not necessary to store the voice indicating that the test is being performed in the voice synthesis IC 30 in order to perform the test, so that the amount (type) of voice that can be stored in the voice synthesis IC 30 does not decrease. . Therefore, it is possible to give a warning by detailed sound.

On the other hand, when the speech synthesis IC 30 is abnormal, even if the test strobe signal is input to the speech synthesis IC 30, no busy signal is output, and the busy signal is low.
Since the signal remains, the inverter 42I outputs an H signal, and the AND circuit 42 outputs an abnormal signal indicating that the voice synthesis IC 30 is abnormal.

The IC inspection strobe signal generation circuit 35 is used as an IC for voice synthesis in a fire alarm system.
5 is an example of an IC test strobe signal generation unit that supplies a test strobe signal.

The AND circuit 41 outputs a normal signal indicating that the voice synthesis IC is normal when the IC test strobe signal and the busy signal output from the voice synthesis IC can be simultaneously detected. May output a normal signal when the IC test strobe signal and the speech synthesis IC output signal can be simultaneously detected. Therefore, the AND circuit 41 outputs the IC test strobe signal and the IC test strobe signal. When the busy signal output from the voice synthesis IC can be detected at the same time, or when the IC inspection strobe signal and the output signal of the voice synthesis IC can be simultaneously detected, the voice synthesis IC is normal. This is an example of a judging means for judging.

FIG. 2 shows data D7 to D7 in the above embodiment.
FIG. 3 is a diagram illustrating an example of a relationship between D0 and the content of a voice signal output by a voice synthesis IC 30;

Data D7 to D0 are "10000000"
In the case of, an alarm sound signal indicating the occurrence of a fire such as "a fire has occurred" is output, and if the data D7 to D0 are "01000000", the message "Check the meeting room on the second floor. A voice signal for guidance to instruct the on-site confirmation, such as "Please," is output, and the data D7 to D0 are set to "0".
If it is "00000000", a silent signal is output.

Therefore, when it becomes necessary to inspect the voice synthesis IC 30, the CPU 10 outputs the data D7 to D7.
If "00000000" is output as 0, the voice synthesis IC 30 outputs a silent signal.
Since no sound is generated from No. 4, there is no erroneous recognition that a fire has occurred. In this case, since a busy signal is generated when a silent signal is output, the AND circuit 41 can output a normal signal indicating that the voice synthesis IC is normal. If a silent signal is generated, no sound is generated, so that the inspection time does not need to be set as short as 0.1 second, and can be set to 1 to 10 seconds. If a fire signal occurs during this time, C
The data D7 to D0 output from the PU 10 are immediately changed to "10
000000 ”and the CPU 10 may control to output a fire alarm sound.

The CPU 10 is an example of a silent output unit that applies an input signal corresponding to a silent output signal to the voice synthesis IC when a strobe signal for IC inspection is applied to the voice synthesis IC. Further, the CPU 10 is also an example of an operation stopping unit that stops an operation of applying an input signal corresponding to a silent output signal to the voice synthesis IC when a fire occurs.

The AND circuit 41 is an example of a judging means for judging that the voice synthesizing IC is normal when a strobe signal for IC inspection and a busy signal of the voice synthesizing IC can be simultaneously detected. However, when the IC test strobe signal and the output signal of the voice synthesis IC can be simultaneously detected, it may be determined that the voice synthesis IC is normal.

FIG. 3 is a block diagram showing an automatic voice synthesizing IC inspection apparatus 2 in a fire alarm system according to another embodiment of the present invention.

This embodiment is basically the same as the automatic inspection apparatus 1, except that a switch 31 which is turned off by an IC inspection strobe signal is provided between the voice synthesis IC 30 and the filter 32. The only difference is that a CPU 11 is provided instead of the CPU 10.

When the IC inspection strobe signal is output from the automatic voice synthesis IC automatic inspection apparatus 2, the voice synthesis IC 30 outputs a voice signal in accordance with the data D7 to D0 at that time. Since the switch 31 is turned off by the test strobe signal, the speaker 3 is turned off.
4 does not generate a sound, and the sound generated from the speaker 34 does not erroneously recognize that a fire has occurred. If the voice synthesis IC 30 is normal, a busy signal is output by the generation of the test strobe signal, and a normal signal is output from the AND circuit 41 in response to the busy signal and the test strobe signal. Is normal. Alternatively, the AND circuit 41 may output a normal signal when the IC inspection strobe signal and the output signal of the voice synthesis IC 30 are generated at the same time.

In the automatic voice synthesizing IC automatic inspection apparatus 2, the CPU 11 is an example of an operation stopping means, which is basically the same as the CPU 10, but forcibly switches the switch 31 when a fire signal is generated. The only difference from the CPU 10 is that a signal for turning on the switch is output to the switch 31. Therefore, even if a fire occurs while inspecting the voice synthesis IC 30, the switch 31 is immediately turned on,
Further, the CPU 11 sets “1000” as data D7 to D0.
Since “0000” is output, an audio signal of a fire occurrence can be output, and the audio is generated from the speaker 34.

The switch 31 is an example of a signal cutoff unit that cuts off a signal path for sending an output signal of the voice synthesis IC to the speaker while a strobe signal for IC inspection is applied to the voice synthesis IC. 32 and the amplifier circuit 33, or between the amplifier circuit 33 and the speaker 34,
A switch 31 may be provided.

In the automatic inspection device 2, a voice synthesizing IC
Since it is not necessary to store the voice indicating that the test is being performed in the voice synthesis IC 30 in order to test the
The amount of voice that can be stored in the voice synthesis IC 30 does not decrease.

FIG. 4 is a block diagram showing an automatic voice synthesizing IC inspection apparatus 3 according to another embodiment of the present invention.

This embodiment is basically the same as the automatic inspection apparatus 1, except that a transistor 50 which is turned off by an inspection strobe signal is provided between the amplifier circuit 33 and a power supply (not shown). Only this is different from the automatic inspection device 1.

When the test strobe signal is output from the automatic voice synthesizing IC automatic inspection apparatus 3, the normal or abnormal state of the voice synthesizing IC 30 is detected in the same manner as in the above embodiments. Since the transistor 50 is turned off, the power supply to the amplifier circuit 33 is cut off, and even if the voice synthesis IC 30 outputs a voice signal, the voice signal does not reach the speaker 34 and the voice is generated from the speaker 34. Therefore, the sound generated from the speaker 34 does not erroneously recognize that a fire has occurred.

Further, in the automatic inspection device 3, it is not necessary to store the voice indicating that the voice synthesis is under test in the voice synthesis IC 30 for testing the voice synthesis IC 30. The amount of sound that can be made does not decrease.

The transistor 50 operates while the IC test strobe signal is applied to the voice synthesis IC.
This is an example of a power cutoff unit that cuts off power supply to a circuit provided in a signal path for sending an output signal of a voice synthesis IC to a speaker.

Although not shown, an AND circuit 41,
The normal signal and the abnormal signal output from
The information may be input to U10 and the result of normality or abnormality may be output to a display device (not shown).

As a determination means, the AND circuit 41 is set to C
It is provided outside the PU 10 and configured to detect the strobe signal and the busy signal. Instead, the busy signal output from the voice synthesis IC is input to the CPU 10 and the strobe signal generated by the CPU 10 The input busy signal is processed inside the CPU 10,
This allows the CPU 10 to determine whether the voice synthesis IC is normal.
May be determined.

Further, by turning on and off a test switch provided in a fire receiver, for example, an IC for speech synthesis is provided.
It may be preferable to automatically inspect the speech synthesis IC 30 by always or periodically outputting a strobe signal. In this case, an abnormal signal may be detected. Only when output,
That fact may be displayed.

[0040]

According to the present invention, without reducing the amount of voice that can be stored in the voice synthesis IC, it is misunderstood that a person listening to the voice synthesized by the voice synthesis IC has a fire. It has the effect of not being let.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an automatic voice synthesizing IC inspection apparatus 1 in a fire alarm system according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of a relationship between data D7 to D0 and the content of a voice signal output by a voice synthesis IC 30 in the embodiment.

FIG. 3 is a block diagram showing an automatic voice synthesizing IC inspection apparatus 2 in a fire alarm system according to another embodiment of the present invention.

FIG. 4 is a block diagram showing an automatic voice synthesizing IC inspection apparatus 3 according to another embodiment of the present invention.

[Explanation of symbols]

 1, 2, 3 ... automatic inspection device for voice synthesis IC, 10, 11 ... CPU, 20 ... flip-flop, 30 ... voice synthesis IC, 31 ... switch, 33 ... amplifier circuit, 35 ... IC test strobe signal generation Circuit 41 AND circuit.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G08B 29/10 G08B 17/00 G08B 23/00 520 G10L 13/00

Claims (6)

(57) [Claims] An IC for speech synthesis in a fire alarm system
To have an IC test strobe signal generating means for supplying a strobe signal for the IC test, the speech synthesis IC is that can not be recognized as a fire when hearing a voice synthesized time only, the IC A speech synthesis IC in a fire alarm system, which supplies a strobe signal for inspection to the speech synthesis IC.
Automatic inspection equipment. 2. An IC inspection strobe signal generating means for supplying an IC inspection strobe signal to an automatic voice synthesis IC inspection apparatus in a fire alarm system;
When it is applied to a silent output means for applying an input signal corresponding to the silence of the output signal to the IC for the speech synthesis; automatic inspection of the IC for speech synthesis in a fire alarm system which is characterized by having a . 3. An IC for speech synthesis in a fire alarm system.
To supply a strobe signal for IC inspection
A strobe signal generating means; and the strobe signal for IC inspection is the IC for speech synthesis.
, While the output signal of the voice synthesis IC is
Automatic inspection of the IC for speech synthesis in a fire alarm system and having a; a signal blocking means for blocking the signal path for sending to the speaker. 4. An IC for speech synthesis in a fire alarm system.
In, IC inspection strobe signal generating means for supplying a strobe signal for IC testing and; strobe signals above SL IC for inspection IC for the voice synthesis
While being applied to a power supply shielding <br/> cross section cuts off the power supply of the output signal of the speech synthesis IC to the circuit provided in the signal path to be sent to the speaker; and characterized in that it has a Automatic inspection system for voice synthesis ICs in fire alarm equipment. 5. An IC for speech synthesis in a fire alarm system.
To supply a strobe signal for IC inspection
A strobe signal generating means, wherein the strobe signal for IC inspection and the IC for speech synthesis are provided.
Whether or not the busy signal output by
Therefore, or with the above strobe signal for IC inspection,
Whether the output signal of the voice synthesis IC and the output signal were detected at the same time
Depending on whether the voice synthesis IC is normal or abnormal.
An automatic inspection apparatus for a voice synthesis IC in a fire alarm system, which is configured to judge whether or not the speech is detected. 6. A claim 1, strobe signal and the speech synthesis IC for the upper Symbol IC test
Whether or not the busy signal output by
Therefore , it is determined whether the strobe signal for IC inspection and the output signal of the IC for voice synthesis can be simultaneously detected.
Depending on whether the voice synthesis IC is normal or abnormal.
Automatic inspection of the IC for speech synthesis in a fire alarm system, wherein the benzalkonium to determine whether there are.