JPH0592892U - Simple fire alarm - Google Patents

Abstract

(57) [Summary] [Purpose] To enable correct replacement of batteries in simple fire alarms installed mainly in homes. [Structure] The voltage drop detection circuit 10 detects that the voltage of the battery 1 has dropped below a predetermined value. Audio output circuit 7
In advance, information about battery replacement such as model of used battery and required number of batteries is stored. When the voltage drop detection circuit 10 detects that the voltage of the battery 1 has dropped to a predetermined value or less, the audio output circuit 7 starts its operation and outputs information about battery replacement as an audio signal. Then, after the voice signal is amplified by the amplifier circuit 8, a voice message is output from the speaker 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a simplified fire alarm mainly used for home use and powered by a battery.

[0002]

[Prior Art]

 In recent years, a simple fire alarm device has been developed that detects the occurrence of a fire at home and sounds an alarm. This type of fire alarm uses a battery as a power source so that it can be easily installed anywhere in the home or by an amateur. It also has the function of notifying when to replace the battery so that it will not run out of power and will not function. The battery replacement time is generally notified by detecting the battery voltage level and intermittently sounding a buzzer when the voltage level drops to a predetermined level.

[0003]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional simple fire alarm device, a buzzer or the like is used to prompt the user to replace the battery, but people in general households cannot understand how to deal with it unless they read the instruction manual. Even if the buzzer sounds, it may be left alone until it finishes ringing, or the alarm may be removed due to a malfunction. Also, even if it is known that the battery needs to be replaced, if you do not know what type of battery you should replace, you have to bother to remove the alarm and check the inside. There is also.

In addition, people in general households often do not know the correct installation location and construction method at the time of purchasing a fire alarm, and they will read the instruction manual at the time of purchase, but this is troublesome. , I read about it and installed it. As a result, the equipment may not be installed in the correct installation location or may be confused during the installation process, resulting in damage to the equipment in the worst case.

Therefore, the present invention provides a simple fire alarm device that enables even a person in a general household to easily grasp the correct installation location and construction method and to take corrective measures when the battery needs to be replaced. It is intended to be provided.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the simplified fire alarm device according to the invention of claim 1 is a voltage drop detecting means for detecting that the battery voltage has dropped below a predetermined value, and a memory storing information on battery replacement. And a voice output unit that outputs the information stored in the storage unit as voice when the battery voltage detection unit detects that the battery voltage has dropped below a predetermined value. And

According to another aspect of the present invention, there is provided a simple fire alarm device, which includes storage means for storing information about an installation location and a construction method, and a designation means for designating reading of the information from the storage means. A voice output means for outputting the information as a voice when the reading of the information is designated by the designating means.

[0008]

[Action]

 According to the first aspect of the invention, when the battery is depleted and the battery voltage drops below a predetermined level, the information for replacing the battery is read from the storage means, converted into voice and output. Therefore, since information about battery replacement can be known by voice, even a person in a general household can easily and reliably replace the battery.

According to the second aspect of the present invention, the correct location for mounting the simple fire alarm and the information for teaching the construction method are output as voice. Therefore, since information about the installation location and the construction method can be heard by voice, even a person in a general household can easily and reliably install in an optimal location.

[0010]

【Example】

Hereinafter, the present invention will be described with reference to the drawings. First Embodiment FIG. 1 is a block diagram showing a first embodiment of a simplified fire alarm device according to the present invention. In this figure, reference numeral 1 denotes a battery built in the fire alarm, which supplies a power supply voltage Vc to each circuit unit. An oscillating circuit 2 oscillates the pulse signal Pc at a constant cycle. The oscillated pulse signal Pc is supplied to the light emission drive circuit 3 and the voltage drop detection circuit 10. The light emission drive circuit 3 intermittently drives the light emitting element 4 to emit light based on the supplied pulse signal Pc.

The light emitting element 4 is arranged in a smoke detector (not shown) formed in a part of the alarm body. In addition to the light-emitting element 4, a light-receiving element 5 is arranged in the smoke detecting section so as to be separated from the light-emitting element 4, and the light-receiving element 5 receives scattered light generated by the passage of smoke between the light-receiving element 5 and the light-receiving element 5. To do. Reference numeral 6 is a fire detection circuit, which inputs a signal output from the light receiving element 5 and compares the level of this signal with a preset fire determination level. When the output level of the light receiving element 5 exceeds the fire determination level in this comparison, the output is inverted from the H level to the L level.

A voice output circuit 7 outputs a plurality of types of messages as voice signals. Each message is recorded in correspondence with the input terminals I1 to I3. For example, when the input terminal I2 is set to H level, a series of audio signals representing the message "Pippipippi ... is a fire, is a fire" is output. .. In this case, a series of audio signals are repeatedly output while the input terminals I1 to I3 are at the H level. The output of the fire detection circuit 6 is supplied to the input terminal I2 of the audio output circuit 7 via the diode D1 and the inverter 14. An amplifier circuit 8 amplifies the audio signal output from the audio output circuit 7 and supplies it to the speaker 9.

The voltage drop detection circuit 10 detects the voltage drop of the battery 1. This voltage drop detection circuit 10 has a transistor 11 for inputting a reference voltage from a variable resistor VR obtained by a series circuit of a resistor R1, a variable resistor VR and a Zener diode ZD as a base, and is set by a variable resistor VR. When the battery voltage Vc of the battery 1 is higher than the set level, the Zener diode ZD is turned on, the base current flows, and the transistor 11 is turned on. On the other hand, when the battery voltage Vc drops due to the exhaustion of the battery 1 and becomes lower than the set level, the Zener diode ZD becomes non-conductive and the transistor 11 is turned off.

The output of the voltage drop detection circuit 10 (collector voltage of the transistor 11) is supplied to the input terminal I1 of the audio output circuit 7 via the diode D2 and the inverter 12. The diode D2 is reversely biased when the output of the voltage drop detection circuit 10 is at the H level (transistor 12 is in the ON state) when the battery voltage Vc exceeds the above set level, and therefore the diode D2 is in the OFF state. Become. At this time, the output of the inverter 12 becomes L level, and the audio output circuit 7 does not operate.

On the other hand, when the output of the voltage drop detection circuit 10 is at the L level (transistor 12 is in the off state) when the battery voltage Vc is below the set level, the oscillation pulse Pc of the oscillation circuit 2 is generated. Since it is supplied to the diode D2 via the resistor R2, the diode 2 becomes conductive at the timing of the L level of the oscillation pulse Pc, and the output of the inverter 12 becomes the H level. As a result, the voice output circuit 7 operates and outputs a voice signal prompting the replacement of the battery. After the output audio signal is amplified by the amplifier circuit 8, for example, “Pi-Pi-Pi ... The battery is almost exhausted. Prepare three new AA batteries and replace them as soon as possible. The voice message “” is output.

This voice message is repeatedly output while the H level signal is supplied to the input terminal I1 of the voice output circuit 7. In this case, the H-level signal is intermittently supplied to the input terminal I1, but when a H-level signal is supplied to the input terminal I1 after one message is output, the H-level signal is again supplied. The same message is output.

Reference numeral 13 denotes a one-shot circuit, which inputs a trigger signal of a trigger circuit including a resistor R3 and a push button switch 15 to output an output during a time constant determined by the resistor R4 and the capacitor 17. It becomes L level. The output of the one-shot circuit 13 is supplied to the input terminal I3 of the audio output circuit 7 via the inverter 18. When the output of the one-shot circuit 13 becomes L level, the output of the inverter 18 becomes H level, whereby the audio output circuit 7 outputs an audio signal notifying the installation place and the construction method. R5 is a resistor.

The output audio signal is amplified by the amplifier circuit 8, and then, for example, “Please see the second page of the operation manual” from the speaker 9. Attach it to the center of the ceiling as much as possible. next,…… . If you have any questions, please contact the following. ……. ] Voice message is output. Then, after a voice signal corresponding to the series of voice messages is output from the voice output circuit 8, a reset signal is output from the voice output circuit 8 and supplied to the one-shot circuit 13. As a result, the one-shot circuit 13 is reset. Then, when the push button switch 15 is pressed again, a similar voice message is output.

The voltage drop detection circuit 10 corresponds to voltage drop detection means. The audio output circuit 7 has a function as a storage unit, and the amplifier circuit 8 and the speaker 9 constitute an audio output unit 20. Further, the one-shot circuit 13, the resistor R3, and the push button switch 15 constitute the designation means 21.

When smoke is detected by the light emitting element 4 and the light receiving element 5 in the simple fire alarm configured as described above, the output of the fire detection circuit 6 becomes L level and the output of the inverter 14 becomes L level. The level is inverted to the H level, and the input terminal I2 of the audio output circuit 7 becomes the H level. As a result, the voice output circuit 7 is activated to output a voice signal indicating the fire, and after being amplified by the amplifier circuit 8, the speaker 9 outputs a voice message notifying the fire.

On the other hand, when the voltage of the battery 1 drops and falls below a set level, the output of the voltage drop detection circuit 10 becomes L level, and the inverter 12 is timed at the L level timing of the oscillation pulse Pc of the oscillation circuit 2. The output is inverted to H level, and the input terminal I1 of the audio output circuit 7 becomes H level. As a result, the voice output circuit 7 operates to output a voice signal prompting the replacement of the battery, and after being amplified by the amplifier circuit 8, the speaker 9 outputs a voice message prompting the replacement of the battery.

When the push button switch 15 is pressed, the output of the one-shot circuit 13 becomes L level, the output of the inverter 18 is inverted from L level to H level, and the input end I3 of the audio output circuit 7 is changed. It becomes H level. As a result, the voice output circuit 7 is activated to output a voice signal indicating the installation location and the construction method, and after being amplified by the amplification circuit 8, the speaker 9 outputs a voice message indicating the installation location and the construction method. It

As described above, when a fire is detected, the voltage of the battery is lowered and the battery needs to be replaced, or when the user wants to know the installation location and the construction method, a voice message is issued.

Second Embodiment Next, FIG. 2 is a block diagram showing a second embodiment of the simple fire alarm device according to the present invention. This embodiment is constructed by using a microcomputer. In this figure, 25 is a voltage detection circuit, which detects the voltage of the battery 1. The voltage detection circuit 25 may be the voltage drop detection circuit 10 of the first embodiment described above, or may be a circuit composed of only resistors as a simple configuration. In this embodiment, it is assumed that only resistors are assembled and a detection voltage Vd proportional to the voltage Vc of the battery 1 is output. The output Vd of the voltage detection circuit 25 is A / D converted by the A / D conversion circuit 31 and supplied to the CPU 26.

The CPU (central processing unit) 26 controls the fire alarm device main body according to the program written in the ROM 27. In this case, the program written in the ROM 27 has a program for detecting the voltage drop of the battery 1 to inform the user of this condition, a program for detecting smoke to inform the user of the fire, and a program to the user for the fire. Program to inform the correct installation location and installation method when purchasing the alarm, message data to notify battery replacement, message data to notify fire, message to notify installation location and installation method Data and reference voltage data (Vb) are written.

When the detection voltage Vd output from the voltage detection circuit 25 is A / D converted by the A / D conversion circuit 31 and input, the CPU 26 reads out and outputs message data indicating the battery replacement from the ROM 27. .. As the contents of this message data, for example, as in the case of the above-mentioned first embodiment, "PiPiPi ... The batteries are almost exhausted, prepare 3 new AA batteries and replace them as soon as possible. ].

Reference numeral 28 is a fire detection unit, which is composed of the oscillation circuit 2 of the first embodiment, the light emission drive circuit 3, the light emitting element 4, the light receiving element 5, and the fire detection circuit 6. The fire detection signal, which is its output, is input to the CPU 26. When the CPU 26 receives the fire detection signal, the CPU 26 reads out the message data indicating the fire from the ROM 27 and outputs it. The content of this message data is, for example, “beep beep ... a fire is a fire” as in the first embodiment described above.

Reference numeral 29 is a push button switch, the output of which is input to the CPU 26. When the CPU 26 receives this output, it reads the message data of the contents informing the installation location and the construction method from the ROM 27 and outputs it. For the contents of this message data, for example, see "Page 2 of the instruction manual" as in the case of the first embodiment described above. In this way, please install in the center of the ceiling as much as possible. next,…… . If you have any questions, please contact the following. ……. ].

Reference numeral 30 denotes a voice generation circuit, which inputs message data output from the CPU 26, generates a voice signal based on this data, amplifies it, and supplies it to the speaker 9. The voltage detection circuit 25 and the CPU 26 form a voltage drop detection means 33. The ROM 27 also functions as a storage means. The CPU 26, the voice generation circuit 30, and the speaker 9 form a voice output means 34. The push button switch 29 corresponds to the designation means.

The operation of the simple fire alarm device having such a configuration will be described with reference to the flow chart shown in FIG. When the battery 1 is attached and power is supplied to each part of the circuit, first, in step S1, the CPU 26 determines whether or not a fire detection signal is output from the fire detection unit 28. If it is determined in this determination that the fire detection signal is output, the process proceeds to step S2 to read the message data indicating the fire from the ROM 27 and supply it to the voice generation circuit 30. As a result, a voice message indicating the fire is output from the speaker 9. This voice message is output repeatedly while detecting smoke.

On the other hand, if it is determined in step S1 that the fire detection signal is not output from the fire detection unit 28, the process proceeds to step S3 without doing anything. In step S3, the CPU 26 inputs the detection voltage Vd output from the voltage detection circuit 25. Next, in step S4, it is determined whether the detected voltage Vd is equal to or lower than the set voltage Vb. If it is determined that the detected voltage Vd is less than or equal to the set voltage Vb in this determination, the process proceeds to step S5, where the CPU 26 reads out the message data from the ROM 27 which prompts the battery replacement, and supplies it to the voice generation circuit 30. As a result, a voice message prompting battery replacement is output from the speaker 9. This voice message is repeatedly output until the battery 1 is removed and a new battery is installed.

On the other hand, when the CPU 26 determines in step S4 that the detected voltage Vd is equal to or higher than the set voltage Vb, it does nothing and proceeds to step S6. In step S6, it is determined whether or not the push button switch 29 has been pushed. If it is determined that the push button switch 29 is pressed in this determination, the process proceeds to step S7, where message data indicating the installation location and the construction method is read from the ROM 27 and supplied to the voice generation circuit 30. As a result, a voice message indicating the installation location and the construction method is output from the speaker 9. This voice message is output every time the push button switch 29 is pressed.

On the other hand, when the CPU 26 determines in step S6 that the push button switch 29 is not pressed, the process returns to step S1 and the same process is performed again. In this way, when a fire is detected, the voltage of the battery drops and it needs to be replaced, or when the user wants to know the installation location and construction method, a voice message is issued.

In the first and second embodiments described above, the message for notifying the installation place and the construction method is output to the people in the general household, but for example, the technical level is divided into stages and A message may be output. For example, it allows the user to select a mode for amateurs in general households and a mode for professionals, and outputs a message corresponding to the selected mode. In professional mode, you only need to tell the main points, so store the message data that informs you of the main points.

In addition, the first and second embodiments are provided with a function of a remote commander capable of learning, and for example, by storing a power-on signal of a remotely controllable television, the power-on signal at the time of fire can be stored. You may make it transmit and turn on a television.

Further, the first and second embodiments may be provided with a transmission function so as to interfere with a program of a typical television station, for example. In this case, it goes without saying that the output intensity must be weak enough to interfere with the neighbors.

[0036]

[Effect of the device]

 According to the present invention, the information about battery replacement and the installation location and construction method can be heard by voice, so that even a person in a general household can easily and reliably replace the battery, and the optimum installation is possible. The effect is that the location can be selected and reliable construction can be performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment of a simplified fire alarm device according to the present invention.

FIG. 2 is a block diagram showing the configuration of a second embodiment of the simple fire alarm device according to the present invention.

FIG. 3 is a flowchart for explaining the operation of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery 7 Voice output circuit (storage means) 8 Amplification circuit 9 Speaker 10 Voltage drop detection circuit (voltage drop detection means) 13 One shot circuit 15 Push button switch 20 Voice output means 21 Designating means 25 Voltage detection circuit 26 CPU 27 ROM (storage) Means) 29 push button switch (designating means) 30 voice generation circuit 33 voltage drop detection means 34 voice output means 28 voltage drop detection section R3 resistance

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Naoya Matsuoka 2-1043 Kamiosaki, Shinagawa-ku, Tokyo Within Hochiki Co., Ltd. (72) Hiroshi Shima 2-1043 Kamiosaki, Shinagawa-ku, Tokyo Ho Chiki Co., Ltd. (72) Inventor Atsushi Manmoto 2-1043 Kamiosaki, Shinagawa-ku, Tokyo Ho Chiki Co., Ltd. (72) Toshiyuki Ozawa 2-1043 Kamiosaki, Shinagawa-ku, Tokyo Ho Tiki Co., Ltd. (72) Creator Kenji Kato 2-1043 Kamiosaki, Shinagawa-ku, Tokyo Ho Chiki Co., Ltd. (72) Creator Fuwa Yoshiaki 2-1043 Kamiosaki, Shinagawa-ku, Tokyo Ho Chiki Within the corporation

Claims (2)

[Scope of utility model registration request] 1. A voltage drop detection means for detecting that the battery voltage has dropped below a predetermined value, a storage means for storing information related to battery replacement, and a voltage drop detection means for keeping the battery voltage below a predetermined value. And a voice output unit that outputs the information stored in the storage unit as a voice when it is detected that the simple fire alarm. 2. A storage unit that stores information about an installation location and a construction method, a designation unit that designates reading of the information from the storage unit, and a reading unit that designates reading of the information. A simple fire alarm device, comprising: a voice output unit that outputs the information as voice.