JP3037490U - Portable rescue sound generator - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a portable rescue voice generating device capable of generating a warning sound and a voice for a long time. A battery, a memory that stores a predetermined rescue voice signal as a digital value, a D / A conversion circuit that receives the digital value read from the memory and outputs the analog signal, and the D / A conversion circuit. The voice output circuit that outputs the rescue voice signal in response to the output signal of, the switch circuit that outputs the power from the battery to the voice output circuit when the control signal is turned on, and the memory address are sequentially accessed. Sequentially read out the digital values that make up the rescue voice signal, and repeat reading at a predetermined cycle with a period of several seconds or more after the reading of the rescue voice signal is completed, and turn on the switch circuit in response to the read. It is equipped with a control circuit that generates control signals, and removes the audio output circuit from the battery when operating the operation switch In which the force is applied.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a portable rescue voice generator, and more specifically, a rescue voice generator capable of continuously producing a rescue voice over a long period of time when a thief is attacked or a mountain disaster occurs. The present invention relates to a sound generator.

[0002]

[Prior art]

 As a conventional portable self-defense alarm device, a portable security buzzer or the like in which a battery and a buzzer are incorporated in a small case is known. When a lever or the like is released, a buzzer sounds, and this type is used for theft prevention and countermeasure for molesting. Portable rescue sound generators that generate audio signals instead of buzzers to prevent natural disasters such as earthquakes and distress accidents are also available, for example, in Japanese Patent Application Nos. 7-62330 and 7-62331. No. has been proposed.

[0003]

[Problems to be solved by the device]

 Not only for mere prevention of molesting, but when this type of device is used as a portable rescue voice generating device, especially when using this device as a countermeasure against natural disasters such as earthquakes and accidents such as accidents. , At least one day of operation is required. However, this type of self-defense alarm device and portable rescue sound generator cannot emit a sound or warning for a long time when actually used because of battery drive. . In addition, there is a problem that the generated sound decreases as time elapses due to battery consumption. In addition, if the power consumption is reduced for one or more days of operation, the volume of voices and warning sounds will decrease, and the original purpose will not be achieved. An object of the present invention is to solve the above problems of the prior art, and to provide a portable rescue voice generating device capable of generating a long-time warning sound and voice.

[0004]

[Means for Solving the Problems]

 The features of the portable rescue voice generator of the present invention for achieving such an object are: a battery, a memory for storing a predetermined rescue voice signal as a digital value, and a digital value read from this memory. D / A conversion circuit that outputs an analog signal, a voice output circuit that outputs a rescue voice signal by receiving the output signal of this D / A conversion circuit, and a battery when the control signal is turned on Power to the audio output circuit and the address of the memory are sequentially accessed to sequentially read the digital values that make up the rescue voice signal, and a period of several seconds or more is set after the read of the rescue voice signal is completed. The operation switch is provided with a control circuit which repeatedly performs reading at a predetermined cycle and generates a control signal for turning on the switch circuit in response to the reading. Excluding audio output circuit from the battery when operated, in which power for operating the respective circuits is supplied.

[0005]

[Embodiment of the invention]

 In the portable rescue sound generator having such a configuration, since the power of the voice output circuit that requires the most power is intermittently supplied at intervals of several seconds or more, even when the battery is operated, the power is long. Can be operated for hours. In addition, a large amount of power can be supplied to the audio output circuit to output a large output sound, for example, a sound of 80 phones or more, to the outside for a long time. This makes it possible to provide a large amount of rescue sound to the outside even when the robot is operated for a long time, and to draw more attention. In addition, by storing the audio signal together with the warning sound in the memory, it is possible to call attention, and by combining the rescue sound and the warning sound, warnings for alarm clocks, mobile phones, and other electronic devices can be obtained. It is distinguished from sound and is easily recognized as a rescue signal.

[0006]

【Example】

 FIG. 1 is a block diagram of a portable rescue voice generator according to an embodiment to which the present invention is applied, and FIG. 2 is a timing chart of its operation. In FIG. 1, reference numeral 20 denotes a portable rescue voice generator, which is a sound source data ROM 1 storing data of a warning sound signal and a rescue voice signal, an address counter 2 for generating an address for accessing the sound source data ROM 1, and a sound source data ROM 1 D / A converter circuit (D / A) 3 that receives the data read from the D / A converter, and an audio amplifier circuit 4 that amplifies the warning sound + voice signal by receiving the output of D / A 3, various controls It comprises a control circuit 5 for generating a signal, a speaker 7 for outputting a warning sound and a voice, a timing signal generating circuit 8, a switch circuit 9, a battery 10, and an operation switch 11. The control circuit 5 is provided with a cycle switching switch 6 for changing the cycle of the read operation, whereby the cycle of the repeated read operation can be changed.

In the sound source data ROM 1, the ringing warning sound 1 a is expanded into digital values in advance in the range corresponding to 1 second with reference to the cycle of the clock CLK generated by the timing signal generation circuit 8 and is distributed to the addresses Aa to Ak. Then, the voice signal 1b of the female "Takesuke" is stored at the addresses Ak + 1 to Am, and then the voice signal 1c of the same "Takete" is stored at the addresses Am + 1 to An, respectively. It is remembered. The ROM 1 is manufactured by digitally storing a warning sound and a female voice of "Takesuke" in a memory by a digital voice storage device, and converting the digital value data into a ROM. In particular, the warning sound is a ringing sound having a frequency centered at 2000 Hz, and the frequency is usually selected from a range of 1500 Hz to 3000 Hz to call attention.

The timing signal generation circuit 8 sends a clock CLK having a predetermined cycle and a timing pulse TP (see FIG. 2A) having a duty ratio of 50% and a cycle of 2 seconds to the control circuit 5. The control circuit 5 is internally provided with a preset counter (not shown), receives the timing pulse TP to generate three of them, then counts ten of these, and again generates three timing pulses TP. Then, it is sent to the sound source data ROM 1 as a read control signal R (see FIG. 2B). In other words, every 20 seconds, three pulses are generated which have a HIGH level (hereinafter "H") for one second and a LOW level (hereinafter "L") for one second. The period of the clock CLK is determined by the number of addresses storing the digital value of the alarm sound and the time required for completing the access of the number of addresses storing the digital value of "Takesuke", for one second. , The cycle is determined to be a little less than that. Note that the storage address of the sound of the warning sound and the voice of “Takesuke” may be provided before and after the address of silent data. As a result, even if the clock CLK is slightly shifted, it is possible to eliminate part of the sound.

The tone generator data ROM 1 sequentially reads and outputs digital values from the address designated by the address counter 2 updated by the clock while the read control signal R is “H”. Further, as shown in FIG. 2C, the control circuit 5 generates a reset signal RST after generating three read signals R and sends the reset signal RST to the address counter 2. As a result, the address value of the address counter 2 is returned to the initial value, for example, “0”. The control circuit 5 sends the clock CLK together with the read control signal R to the sound source data ROM 1 and the address counter 2 during a period when the read signal R is "H", in other words, for one second. The reset signal RST is also sent to the address counter 2 when the operation switch 11 is turned on. As a result, the value starts from the initial value. The sound source data ROM 1 reads data at the rising timing of the clock CLK, and the address counter 2 increments the data at the falling timing of the clock CLK.

The switch circuit 9 includes a PNP type bipolar transistor 9a, a resistor R connected to the base of the transistor, and an inverter 9b connected to the resistor R. The bipolar transistor 9a has an emitter-collector. The read control signal R is provided between the power supply line VDD connection side of the operation switch 11 and the power supply terminal Vcc of the audio amplifier circuit 4, and receives the read control signal R at the base of the transistor 9a via the inverter 9b. During the period (1 second) (1 second), the power is supplied from the battery 10 to the audio amplifier circuit 4 when the operation switch 11 is in the ON state. The operation switch 11 is a push-button type switch that is provided between the power supply line VDD and the battery 9 and operates the portable rescue voice generator 20 by operating it from the outside. , Power is supplied to the power supply line VDD. The power supply line VDD is connected to a power supply terminal of each circuit except the audio amplifier circuit 4. When the operation switch 11 is further pressed in the ON state, the operation switch 11 returns to the OFF state.

Next, the overall operation of the portable rescue voice generating device 20 will be described with reference to FIG. First, when the operation switch 11 is operated and turned on, the timing signal generation circuit 8 sends the clock CLK and the timing pulse TP to the control circuit 5. The control circuit 5 sends the read control signal R to the sound source data ROM 1 and the switch circuit 9. As a result, while the read control signal R is "H", data is read from the address of the tone generator data ROM1 designated by the address counter 2 and output. As for the address of the tone generator data ROM 1, the read address of the tone generator data ROM 1 is updated by the address counter 2 by the clock CLK (see FIG. 2D) sent by the control circuit 5. As a result, the warning sound is read in the first "H" period. It is A / D converted and its analog signal is added to the audio amplification circuit 4, where it is amplified and output from the speaker 7.

Next, at a 1-second interval, a voice “Takesuke” is similarly output from the speaker 7, and further at a 1-second interval, a voice “Takete-” is output from the speaker 7. . Then, the reset signal RST is applied from the control circuit 5 to the address counter 2 (see FIG. 2C), and the address counter 2 is returned to the initial value. The above operation is repeated again after a 20-second break. Here, by changing the count value of the preset counter of the control circuit 5 by operating the cycle switch 6, it is possible to select the cycle in the range of 2 to 40 seconds for the 20-second rest. it can. In this embodiment, the preset counter counts the timing pulse TP with a count value of 10 and 20 seconds, but when the count value is 1, it can be 2 seconds, and when it is 20, it can be 40 seconds.

By the way, when the sound source data ROM 1, the control circuit 5, the timing generation circuit 8, the D / A 3 and the like are integrated into an IC, a CMOS configuration is usually used, and therefore even if power is supplied by a battery, the power consumption is reduced. Very little power. Therefore, it can operate for a long time. The problem is the audio amplifier circuit 4 that must generate a loud sound, but as can be seen in this embodiment, its operation is intermittent for a few seconds or more, which reduces power consumption. ing. For example, even if a sound output of about 1.5 W is generated from two AA alkaline batteries, a sound is output for 1 second every 1 second, and it is repeated intermittently at a cycle of about 20 seconds. However, the portable rescue voice generator 20 can be operated for a day or longer as long as the battery is not exhausted.

As described above, in the embodiment, two voices "Takesuke" are stored and the address of the address counter is updated. However, the address of the address counter is set to the first "Takesuke". If you return to the start address of "" and access again from there, only one storage area is required. However, this reduces the memory capacity of the sound source but complicates the control. The number of times of reading is not limited to two, but the first reading may be performed three times or more, and the sound of “take-up” may be generated. Of course, the rescue voice to be memorized may be other rescue voices such as "please help me" and "I am here", not just "Help me". Further, it may be in a foreign language, and any of these voices may be selected by an external switch. In addition, the frequency of the rescue voice can be appropriately changed by an external switch as well. It is also possible to store the male voice in the memory and switch the female voice to the male voice by an external switch.

The warning sound is not limited to the ringing sound, and may be a siren sound of a patrol car or a buzzer sound. Although the interval between the generation of the warning sound and the audio signal is set to one second, it may be generated continuously. Furthermore, it goes without saying that the interval between the warning sound and the voice and the interval between the voice and the next voice may be adjustable. As described above, by preceding the warning sound, it is possible to draw more attention than a mere rescue voice, and the combination of the warning sound and the rescue voice has an advantage that it is possible to distinguish from other electronic devices. Further, the rescue voice may be generated by the sound source data ROM and the control circuit by the voice synthesis circuit or the like. The voice synthesizing circuit includes a memory for storing a phrase to be a sound source and a control circuit for accessing the memory and generating a digital value of a predetermined voice. However, when using a speech synthesis circuit, it is a little far from natural speech.

[0016]

[Effect of the invention]

 As described above, in the present invention, since the power of the audio output circuit that requires the most power is intermittently supplied at intervals of several seconds or more, it can be operated for a long time even when running on batteries. it can. In addition, a large amount of power can be supplied to the audio output circuit to output a large output sound, for example, sound of 80 or more phones to the outside for a long time. This makes it possible to provide a large amount of rescue sound to the outside even when the robot is operated for a long time, and to draw more attention. As a result, this device can continue to generate the rescue voice for a long time on behalf of the person who is in a state where the rescue voice cannot be generated, resulting in an accident or distress, such as when being attacked by a thug. It becomes one of the effective devices for rescue in the case of etc.

[Brief description of the drawings]

FIG. 1 is a block diagram of a portable rescue voice generator according to an embodiment of the present invention.

FIG. 2 is a timing chart of the operation.

[Explanation of symbols]

 1 ... Sound source data ROM 2 ... Address counter, 3 ... D / A conversion circuit (D / A), 4 ... Audio amplification circuit, 5 ... Control circuit, 7 ... Speaker 7, 8 ... Timing signal generation circuit, 9 ... Switch circuit , 10 ... Battery, 11 ... Operation switch.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G10K 15/04 302 G10K 15/04 302F

Claims (3)

[Utility model registration claims] 1. A battery, a memory for storing a predetermined rescue voice signal as a digital value, a D / A conversion circuit for receiving a digital value read from the memory and outputting it as an analog signal, and the D / A conversion. A voice output circuit that receives the output signal of the circuit and outputs the rescue voice signal; a switch circuit that sends power from the battery to the voice output circuit when the control signal is turned on; The digital values forming the rescue voice signal are sequentially read by sequentially accessing the addresses, and the read is repeated at a predetermined cycle with a period of several seconds or more after the read of the rescue voice signal is completed, and the read is performed. And a control circuit that generates a control signal for turning on the switch circuit in response to the Excluding audio output circuit, the portable rescue signal generator power for operation to each circuit is supplied. 2. The rescue voice signal and the warning sound signal are stored in the memory, and the control circuit reads the rescue voice signal from the memory after a certain period of time from the warning sound signal. 2. The portable rescue signal generator according to claim 1, wherein the switch circuit is turned off for the certain period, and the predetermined cycle is set within a range of 10 to 30 seconds. 3. The rescue signal is a voice signal of "help", and the warning sound signal is 1500 Hz to 300 Hz.
The portable rescue signal generator of claim 2, wherein the alarm signal is a continuous alarm signal in the range of 0 Hz. .