JP2017120509A - Battery-driven alarm device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery-driven alarm device capable of outputting a non-voltage signal to an external apparatus in such a manner that it can distinguish several different types of abnormalities, while suppressing a power consumption.SOLUTION: A battery-driven alarm device 10 includes: an abnormality detection part 11 detecting abnormalities; a signal output part 16 outputting an information signal representing the detection result obtained by the abnormality detection part 11 to an external apparatus 2; and a battery 15 supplying electric power. The abnormality detection part 11 is configured to be capable of detecting several types of abnormalities, and the signal output part 16 outputs a non-voltage signal with a waveform set uniquely to the type of abnormality detected by the abnormality detection part 11 to the external apparatus 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a battery-driven alarm device including an abnormality detection unit that detects an abnormality, a signal output unit that outputs an information signal representing a detection result of the abnormality detection unit to an external device, and a battery that supplies power. .

  Patent Document 1 (Japanese Patent Laid-Open No. 2001-266262) includes a fire detection sensor (16, 21), a gas leak detection sensor (2, 19), and a carbon monoxide detection sensor (2, 20). And an alarm device including a signal output unit (26, 27) for outputting an information signal representing a detection result by the abnormality detection unit to the outside. Specifically, the signal output unit that outputs an information signal representing the detection result of the gas leak detection sensor (2, 19) to the outside is a voltage circuit (27) that outputs the information signal as a voltage signal. The signal output unit that outputs an information signal representing the detection result of the carbon monoxide detection sensor (2, 20) to the outside is also a voltage circuit (27) that outputs the information signal as a voltage signal. For example, it is described that the voltage circuit (27) outputs 6V (no gas leakage) or 12V (gas leakage) from the output terminal to the external device as a voltage signal. On the other hand, the signal output unit that outputs an information signal representing the detection result of the fire detection sensor (16, 21) to the outside is a no-voltage circuit (26) that outputs the information signal as a no-voltage signal.

  Moreover, the alarm device described in Patent Document 1 is configured to receive power from, for example, an AC power supply of AC 100V (power plug 6). That is, the alarm device described in Patent Document 1 consumes a large amount of power because it always outputs a 6V signal even in the absence of gas leakage, but can receive power from an AC power supply of AC100V. Such an increase in power consumption is not a problem.

  Patent Document 2 (Japanese Patent Laid-Open No. 10-283582) describes a battery-powered alarm device. As an advantage of such a battery-powered alarm device, it can be applied when it is required to install an alarm device at an installation location where connection wiring with a commercial AC power source is difficult or an installation location that values aesthetics. It is pointed out.

JP 2001-266262 A Japanese Patent Laid-Open No. 10-283582

Although the battery-driven alarm device has an advantage that the degree of freedom of the installation location is increased, the battery capacity is limited, so that it is required to reduce power consumption.
However, as described in Patent Document 1, a high-performance device having a plurality of functions such as a fire detection sensor, a gas leak detection sensor, and a carbon monoxide detection sensor may be required for the alarm device. . In such a case, it is necessary to output a plurality of types of information signals in such a manner that the receiving side can distinguish them. In the case of a voltage signal, a plurality of types of information signals can be output by assigning different voltage values to each, but in the case of a non-voltage signal, a process of making the voltage value different is impossible.

  The present invention has been made in view of the above problems, and its object is to provide a battery-driven type that can output a non-voltage signal to an external device in a manner that can distinguish multiple types of abnormalities while suppressing power consumption. The point is to provide an alarm device.

In order to achieve the above object, the battery-driven alarm device according to the present invention is characterized by an abnormality detection unit for detecting an abnormality and a signal output for outputting an information signal representing a detection result by the abnormality detection unit to an external device. A battery-driven alarm device comprising a power supply unit and a battery for supplying power,
The abnormality detection unit is configured to be capable of detecting a plurality of types of abnormality,
The signal output unit outputs a no-voltage signal having a waveform uniquely set for the type of abnormality detected by the abnormality detection unit to the external device.

According to the above characteristic configuration, the signal output unit outputs a non-voltage signal having a waveform uniquely set for the type of abnormality detected by the abnormality detection unit to the external device. In other words, an abnormality detected by the abnormality detection unit while suppressing the consumption of power supplied from the battery by using a non-voltage signal that is opened when the signal is not transmitted and is closed when the signal is transmitted. Can be notified to the outside.
In addition, by making the waveform of the no-voltage signal different, it is possible to notify the outside of a plurality of types of abnormalities detected by the abnormality detection unit.
Therefore, it is possible to provide a battery-powered alarm device that can output a no-voltage signal to an external device in a manner that can distinguish between multiple types of abnormalities while suppressing power consumption.

Another characteristic configuration of the battery-powered alarm device according to the present invention, the signal output unit has a switch that can be switched between a conductive state and a non-conductive state,
The waveform of the no-voltage signal is a waveform generated by alternately repeating an on period in which the switch is in a conductive state and an off period in which the switch is in a non-conductive state,
The signal output unit changes the duty ratio or the period of the on-period or the off-period of the waveform of the no-voltage signal to change the no-voltage signal having a waveform uniquely set for the plurality of types of abnormalities. The point is to output to the external device.

  According to the above characteristic configuration, the signal output unit generates a non-voltage signal having a waveform uniquely set for a plurality of types of abnormalities by changing the duty ratio or period of the on-period or off-period of the non-voltage signal waveform. By outputting to an external device, a plurality of types of abnormality detected by the abnormality detection unit can be notified to the outside in a state that can be clearly identified.

  Still another characteristic configuration of the battery-powered alarm device according to the present invention is that the abnormality detection unit includes a fire detection sensor, a gas leak detection sensor, a carbon monoxide detection sensor, and a voltage for the battery. It is in the point which has at least 2 or more detection sensors among detection sensors.

  According to the above characteristic configuration, it is possible to notify the outside of at least a plurality of abnormalities detected by the abnormality detection unit among the occurrence of a fire, the occurrence of gas leakage, the increase in the concentration of carbon monoxide, and the voltage drop of the battery.

  Still another characteristic configuration of the battery-powered alarm device according to the present invention is that the abnormality detection unit further includes a failure detection sensor that detects a failure of the detection sensor.

  According to the above characteristic configuration, the failure of the detection sensor detected by the failure detection sensor as the abnormality detection unit can be notified to the outside.

It is a figure explaining the structure of a battery drive type alarm device. It is a figure which shows the example of a waveform of a no-voltage a contact signal. It is a figure which shows the example of a waveform of a no-voltage a contact signal.

A battery-driven alarm device 10 according to an embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram illustrating the configuration of a battery-driven alarm device 10. As shown in the figure, the battery-driven alarm device 10 includes an abnormality detection unit 11 that detects an abnormality, a signal output unit 16 that outputs an information signal representing a detection result by the abnormality detection unit 11 to the external device 2, and power. And a battery 15 to be supplied. All the electric power consumed inside the alarm device 10 is supplied from the battery 15.

  The abnormality detection unit 11 is configured to be able to detect a plurality of types of abnormality. Specifically, the abnormality detection unit 11 includes at least two detection sensors 12 among the fire detection sensor, the gas leak detection sensor, the carbon monoxide detection sensor, and the voltage detection sensor for the battery 15. It is configured. Alternatively, the abnormality detection unit 11 further includes a failure detection sensor 13 that detects a failure of the detection sensor 12. The abnormality detection unit 11 includes a control unit 14 that determines the detection results of the detection sensors 12 and the failure detection sensor 13.

  The fire detection sensor has a high ambient temperature when a fire is occurring. Therefore, the fire detection sensor can be configured using a heat detection sensor (such as a thermistor) for detecting the ambient temperature. Or a fire detection sensor can also be comprised using the light receiving sensor which can detect the light emission specific to a flame. And the control part 14 determines whether a flame exists based on the detection result transmitted from a fire detection sensor.

The gas leak detection sensor is configured using a methane gas detection sensor for detecting the concentration of methane gas (CH ₄ ), which is the main component of city gas, for example, when city gas is a detection target. In the case where another gas is to be detected, a sensor that can detect the gas may be used. Based on the detection result transmitted from the gas leak detection sensor, the control unit 14 determines whether or not a gas leak has occurred (that is, whether or not the gas concentration to be detected is equal to or higher than a predetermined level). judge.

  The carbon monoxide detection sensor is configured using a gas sensor for detecting the concentration of carbon monoxide gas (CO). And the control part 14 determines whether the density | concentration of carbon monoxide is more than predetermined level based on the detection result transmitted from a carbon monoxide detection sensor.

  The voltage detection sensor is configured using a sensor that outputs the voltage value of the battery 15. And the control part 14 determines whether the voltage of the battery 15 is below a predetermined level based on the detection result of a voltage detection sensor.

  The failure detection sensor 13 diagnoses whether or not the detection sensor 12 such as a fire detection sensor, a gas leak detection sensor, a carbon monoxide detection sensor, or a voltage detection sensor has failed. Specifically, when a fire detection sensor, a gas leak detection sensor, a carbon monoxide detection sensor, a voltage detection sensor, or the like is out of order, the transmitted signal may have an abnormal value. For example, the failure detection sensor 13 receives the detection results of the various detection sensors 12, compares the values with a predetermined threshold value, and determines whether or not the detection results of the various detection sensors 12 are abnormal (that is, the failure is detected). Is diagnosed).

  The external device 2 is configured separately from the alarm device 10, and is connected to the alarm device 10 via the signal line 1. Specifically, the external device 2 is a speaker, a flashlight, a home security device, or the like. When the external device 2 is a speaker, when the speaker as the external device 2 receives a signal indicating “abnormal” from the abnormality detection unit 11, the speaker performs a ringing operation or the like, thereby causing an abnormality to the user. Notify that you are doing. When the external device 2 is a flashlight, when the flashlight as the external device 2 receives a signal “abnormal” from the abnormality detection unit 11, the flashlight performs a blinking operation or the like to the user. Notify that an abnormality has occurred. When the external device 2 is a home security device, when the home security device as the external device 2 receives a signal “abnormal” from the abnormality detection unit 11, the home security device has an abnormality in a security company or the like Notify that you are doing.

Next, the signal output unit 16 will be described.
The signal output unit 16 is configured to output a non-voltage signal (information signal) having a waveform uniquely set for the type of abnormality detected by the abnormality detection unit 11 to the external device 2. For example, the signal output unit 16 includes a switch 16a that can be switched between a conductive state and a non-conductive state. The switch 16a uses a mechanical switch that switches between a conductive state and a non-conductive state by mechanically switching between contact and non-contact of the contact, and a semiconductor element that switches between a conductive state and a non-conductive state. This can be realized using a switch or the like.

The no-voltage signal output by the signal output unit 16 includes a no-voltage a contact signal and a no-voltage b contact signal. In the non-voltage a contact signal, the contact of the switch 16a is continuously maintained in a non-contact state at the normal time when no signal is output, and when the signal is output, the contact of the switch 16a is in a contact state and a non-contact state. It is a signal that can be switched between. In the non-voltage b contact signal, the contact of the switch 16a is continuously maintained in the contact state at the normal time when the signal is not output, and the contact of the switch 16a between the non-contact state and the contact state when the signal is output. It is a signal that can be switched between. That is, the no-voltage a contact signal is an information signal defined by the duty ratio or period of the switch 16a on period, and the no-voltage b contact signal is an information signal defined by the duty ratio or period of the switch 16a off-period. ).
In the following embodiment, an example in the case of outputting a no-voltage a contact signal from the signal output unit 16 will be described.

2 and 3 are diagrams illustrating examples of waveforms of the no-voltage a contact signal output from the signal output unit 16.
As shown in the figure, the waveform of the no-voltage a contact signal includes an on period (period t0 to t1) in which the switch 16a is in a conductive state, and an off period (period t1 to t2) in which the switch 16a is in a nonconductive state. Is a waveform generated by alternately repeating. Then, the signal output unit 16 changes the duty ratio or period of the ON period of the waveform of the no-voltage a contact signal to change the waveform of the no-voltage a contact signal uniquely set for a plurality of types of abnormalities to the external device. Output to 2.

  In FIG. 2, the signal output unit 16 changes the waveform cycle of the no-voltage a contact signal to output the no-voltage a contact signal having a waveform uniquely set for a plurality of types of abnormality to the external device 2. This is an example. Specifically, the waveform of FIG. 2A and the waveform of FIG. 2B are different in the length of one cycle composed of an on period and an off period.

For example, the storage unit 17 included in the alarm device 10 stores in advance a non-voltage a contact signal having a waveform uniquely set for a plurality of types of abnormalities detected by the abnormality detection unit 11. In addition, the storage unit 2a of the external device 2 also stores in advance a non-voltage a contact signal having a waveform uniquely set for a plurality of types of abnormalities detected by the abnormality detection unit 11. When the signal output unit 16 receives the detection result that the fire has occurred from the abnormality detection unit 11, the waveform corresponding to the detection result that the fire has occurred is stored in the storage unit 17. Is read out, and the switch 16a is turned on and off at the on timing and the off timing corresponding to the read waveform cycle.
Similarly, when the signal output unit 16 receives the detection result that the gas leak has occurred from the abnormality detection unit 11, the signal output unit 16 stores the detection result that the gas leak has occurred that is stored in the storage unit 17. The corresponding waveform period is read, and the switch 16a is turned on and off at the on timing and the off timing corresponding to the read waveform period.

  As a result, the external device 2 that has received the no-voltage a contact signal analyzes the period of the waveform of the no-voltage a contact signal, and the detection result that a fire has occurred and the gas leak has occurred. The detection result can be distinguished and received.

  In addition, although description is abbreviate | omitted, the signal output part 16 will detect that the voltage of the battery 15 is below a predetermined level, when the detection result that the carbon monoxide density | concentration is increasing from the abnormality detection part 11 is received. When the result is received, even when the detection result that the detection sensor 12 is broken is received, the period of the waveform corresponding to each detection result stored in the storage unit 17 is read out and read out. The switch 16a is turned on and off at an on timing and an off timing corresponding to the waveform period.

  FIG. 3 shows that the signal output unit 16 changes the on-duty duty ratio of the waveform of the no-voltage a-contact signal to convert the no-voltage a-contact signal having a waveform uniquely set for a plurality of types of abnormality to an external device. This is an example of outputting to 2. Specifically, the waveform in FIG. 3A and the waveform in FIG. 3B have the same length of one cycle composed of the on period and the off period, but the duty ratio ( That is, the ratio between the on period and the off period) is different.

For example, when the signal output unit 16 receives the detection result that the fire has occurred from the abnormality detection unit 11, the waveform that is stored in the storage unit 17 and corresponds to the detection result that the fire has occurred The information about the duty ratio of the ON period is read, and the switch 16a is turned on and off at the ON timing and OFF timing corresponding to the duty ratio of the ON period of the read waveform.
Similarly, when the signal output unit 16 receives the detection result that the gas leak has occurred from the abnormality detection unit 11, the signal output unit 16 stores the detection result that the gas leak has occurred that is stored in the storage unit 17. The duty ratio of the ON period of the corresponding waveform is read, and the switch 16a is turned on and off at the ON timing and OFF timing corresponding to the duty ratio of the ON period of the read waveform.

  As a result, the external device 2 that has received the no-voltage a-contact signal analyzes the duty ratio of the on-period of the waveform of the no-voltage a-contact signal, thereby detecting that a fire has occurred and causing gas leakage. Can be received separately from the detection result.

  In addition, although description is abbreviate | omitted, the signal output part 16 will detect that the voltage of the battery 15 is below a predetermined level, when the detection result that the carbon monoxide density | concentration is increasing from the abnormality detection part 11 is received. When the result is received, when the detection result that the detection sensor 12 is broken is received, the duty ratio of the ON period of the waveform corresponding to each detection result stored in the storage unit 17 is read out. Then, the switch 16a is turned on and off at the on timing and the off timing corresponding to the duty ratio of the read waveform in the on period.

  As described above, in the battery-powered alarm device 10 according to the present embodiment, the signal output unit 16 outputs the no-voltage a contact signal having a waveform uniquely set for the type of abnormality detected by the abnormality detection unit 11. Output to the outside. That is, the abnormality detection unit 11 uses the no-voltage a contact signal that is opened while the signal is not transmitted and is closed when the signal is transmitted, while suppressing the consumption of power supplied from the battery 15. Can detect the abnormality detected by the outside. In addition, by making the waveform of the no-voltage a contact signal different, a plurality of types of abnormality detected by the abnormality detection unit 11 can be notified to the outside. Therefore, it is possible to provide a battery-driven alarm device 10 that can output a no-voltage signal to the external device 2 in a manner that can distinguish between multiple types of abnormalities while suppressing power consumption.

<Another embodiment>
In the said embodiment, although illustrated using the simplified drawing about the structure of the battery drive type alarm device 10, the structure can be changed suitably.
In the above embodiment, the case where the no-voltage signal output from the signal output unit 16 is the no-voltage a contact signal is illustrated, but the no-voltage signal output from the signal output unit 16 may be the no-voltage b contact signal. . Specifically, the signal output unit 16 changes the duty ratio or cycle of the off-period of the waveform of the no-voltage b contact signal to change the waveform of the no-voltage a contact signal uniquely set for a plurality of types of abnormalities. May be output to the external device 2.
2 and 3 show examples of waveforms of no-voltage signals (no-voltage a-contact signals), the waveforms are described for illustrative purposes and can be changed as appropriate.
In addition, the external device 2 may be a device other than the above-described speaker, flashlight, home security device, and the like.

  INDUSTRIAL APPLICABILITY The present invention can be used for a battery-powered alarm device that can output a no-voltage signal to an external device in a manner that can distinguish multiple types of abnormalities while suppressing power consumption.

DESCRIPTION OF SYMBOLS 1 Signal line 2 External apparatus 10 Alarm apparatus 11 Abnormality detection part 12 Detection sensor 13 Failure detection sensor 14 Control part 15 Battery 16 Signal output part 16a Switch

Claims (4)

A battery-driven alarm device comprising: an abnormality detection unit that detects an abnormality; a signal output unit that outputs an information signal representing a detection result by the abnormality detection unit to an external device; and a battery that supplies power,
The abnormality detection unit is configured to be capable of detecting a plurality of types of abnormality,
The signal output unit is a battery-driven alarm device that outputs a no-voltage signal having a waveform uniquely set for the type of abnormality detected by the abnormality detection unit to the external device. The signal output unit has a switch that can be switched between a conductive state and a non-conductive state,
The waveform of the no-voltage signal is a waveform generated by alternately repeating an on period in which the switch is in a conductive state and an off period in which the switch is in a non-conductive state,
The signal output unit changes the duty ratio or the period of the on-period or the off-period of the waveform of the no-voltage signal to change the no-voltage signal having a waveform uniquely set for the plurality of types of abnormalities. The battery-powered alarm device according to claim 1, wherein the alarm device is output to the external device.   The abnormality detection unit includes a fire detection sensor, a gas leak detection sensor, a carbon monoxide detection sensor, and at least two detection sensors among voltage detection sensors for the battery. The battery-powered alarm device according to claim 1 or 2.   The battery-operated alarm device according to claim 3, wherein the abnormality detection unit further includes a failure detection sensor that detects a failure of the detection sensor.

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