JP2008083864A - Alarm device and lighting equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alarm device and lighting equipment equipped with the alarm device for hardly giving any sense of incompatibility in the change of the volume of an alarm sound. <P>SOLUTION: This alarm device is provided with a human body detection part 11 for detecting presence of a human body in a predetermined detection range; a brightness detection part 12 for detecting surrounding brightness; an alarm output part 13 for outputting an alarm sound; and a control part 14 for making the alarm output part 13 output an alarm sound according to the output of the human body detection part 11. According as brightness detected by the brightness detection part 12 becomes bright, the volume of the alarm sound to be output by the alarm output part 13 continuously becomes larger. Thus, it is possible to hardly give any sense of incompatibility in the change of the volume of the alarm sound since the volume of the alarm sound continuously changes according to brightness. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an alarm device and a lighting fixture including the alarm device.

  Conventionally, an alarm device that detects the presence of a human body and generates an alarm sound, and a lighting fixture including the alarm device have been provided (see, for example, Patent Document 1).

  Here, if the volume of the warning sound is constant, the warning sound volume will be insufficient during daytime when there is a lot of noise from a passing car, etc., and a sufficient intimidating effect will not be obtained. May be a nuisance to neighboring residents.

  Therefore, a brightness detection unit that detects the ambient brightness is provided, and when the brightness detected by the brightness detection unit exceeds a predetermined day / night threshold, an alarm is issued than when the brightness is lower than the day / night threshold. Some increase the volume of the sound (see, for example, Patent Document 2).

In the above-mentioned lighting apparatus, the sound volume of the alarm sound can be reduced to the minimum necessary at night to suppress the harm of the noise, while the sound volume of the alarm sound can be increased during the daytime when there is a lot of noise to enhance the intimidating effect.
JP 2005-301355 A JP 2005-302318 A

  However, for example, in the morning or evening, when alarm sounds are output immediately before and after the day and night threshold, the alarm sounds with different volumes are output in a short time. It gave a sense of incongruity.

  The present invention has been made in view of the above-described reasons, and an object thereof is to provide an alarm device in which a change in the volume of an alarm sound is unlikely to cause a sense of incongruity and a lighting fixture provided with the alarm device.

  The invention of claim 1 includes a human body detection unit that detects the presence of a human body in a predetermined detection range, a brightness detection unit that detects ambient brightness, an alarm output unit that outputs an alarm sound, and a human body detection unit. A control unit that drives the alarm output unit according to the output to output an alarm sound, and the control unit continuously increases the volume of the alarm sound as the brightness detected by the brightness detection unit increases. It is characterized by.

  According to the present invention, since the volume of the alarm sound is continuously changed with respect to the brightness detected by the brightness detector, it is difficult to give a sense of incongruity due to the change in the volume of the alarm sound.

  According to the second aspect of the present invention, a human body detection unit that detects the presence of a human body in a predetermined detection range, an alarm output unit that outputs an alarm sound, and an alarm output unit that drives the alarm output unit according to the output of the human body detection unit The control unit is characterized in that the volume of the alarm sound is continuously increased as the human body detection unit detects the presence of the human body.

  According to the present invention, since the volume of the alarm sound is continuously changed with respect to the frequency at which the presence of the human body is detected by the human body detection unit, it is difficult to give a sense of incongruity due to the change in the volume of the alarm sound.

  According to a third aspect of the present invention, there is provided a human body detection unit that detects the presence of a human body in a predetermined detection range, a brightness detection unit that detects ambient brightness, an alarm output unit that outputs an alarm sound, and a human body detection unit. A control unit that drives the alarm output unit according to the output and outputs an alarm sound, and the control unit continuously increases the volume of the alarm sound as the brightness detected by the brightness detection unit is brighter. Further, the volume of the alarm sound is continuously increased as the human body detection unit detects the presence of the human body.

  According to the present invention, the volume of the alarm sound is continuously changed with respect to the brightness detected by the brightness detection unit and the frequency at which the presence of the human body is detected by the human body detection unit. Difficulty caused by change.

  Invention of Claim 4 is equipped with the alarm device in any one of Claims 1-3, the lighting part which lights a light source, and the instrument main body holding each alarm device, a light source, and a lighting part, It is characterized by the above-mentioned. To do.

  Since each invention of Claims 1-3 of this application changes the volume of an alarm sound continuously with respect to the frequency by which the presence detected by the brightness detection part and the human body detection part are detected, respectively. It is hard to give a sense of incongruity due to a change in the volume of the alarm sound.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment 1)
The lighting fixture 1 of this embodiment is an integrated alarm device, and as shown in FIG. 2, the human body detection unit 11 that detects the presence of a human body in a predetermined detection range, and the ambient brightness. A brightness detection unit 12 to detect, an alarm output unit 13 that outputs an alarm sound, and a control unit 14 that causes the alarm output unit 13 to output an alarm sound according to the output of the human body detection unit 11 are provided.

  Moreover, the control part 14 is equipped with the lighting part 15 which supplies electric power to the light source La which consists of an incandescent lamp, for example, and makes it light, and the instrument main body 16 (refer FIG. 3) which accommodates said each part.

  For example, as shown in FIG. 3, the instrument main body 16 includes a fixing portion 16 a that is fixed to a construction surface such as a wall surface, and a main body portion 16 b that houses a socket (not shown) to which the lighting unit 15 has a light source La. And a support portion 16c connected to the main body portion 16b and the fixing portion 16a to support the main body portion 16b with respect to the fixing portion 16a. Each of the human body detection unit 11, the brightness detection unit 12, the alarm output unit 3, and the control unit 4 is housed in, for example, a fixed unit 16a. The main body portion 16b includes a cylindrical shade portion 16d that distributes light from the light source La. The support portion 16c is rotatably connected to the fixed portion 16a, and the main body portion 16b is rotatably connected to the support portion 16c. The direction of the main body portion 16b, that is, the direction in which the light from the light source La is irradiated can be freely set. It can be changed.

  Furthermore, the present embodiment includes a receiving unit 17 that receives a wireless signal, and the control unit 14 operates according to the wireless signal received by the receiving unit 17. Thereby, this embodiment can be operated using the remote control apparatus 2 which transmits a wireless signal. As the wireless signal, infrared light or radio waves can be used. The remote control device 2 includes an operation unit 21 that receives an operation input, a transmission unit 22 that transmits a wireless signal corresponding to the operation input received by the operation unit 21, and a housing 23 that holds the operation unit 21 and the transmission unit 22 (see FIG. 4). As illustrated in FIG. 4, the operation unit 21 includes three operation mode buttons 21 a to 21 c that are exposed on the same surface of the housing 23. The operation mode buttons 21a to 21c include a security mode button 21a corresponding to the security mode, a normal mode button 21b corresponding to the normal mode, and a continuous lighting button 21c corresponding to the continuous lighting mode. When the buttons 21a to 21c are pressed, the transmission unit 22 transmits a wireless signal instructing switching to the operation mode corresponding to the pressed operation mode buttons 21a to 21c. Here, the continuous lighting mode is an operation mode in which the light source La is always turned on at a dimming ratio of 100% regardless of the outputs of the human body detection unit 11 and the brightness detection unit 12. The normal mode means that the control unit 14 turns off the light source La when the brightness detected by the brightness detection unit 12 exceeds a predetermined day / night threshold TH, and when the brightness is lower than the normal level, Performs dimming lighting with the ratio of the light output of the light source La to the light output during rated lighting (hereinafter referred to as “light control ratio”) being 10%, and after the human body is detected by the human body detection unit 11 This is an operation mode in which the light source La is rated-lit until a predetermined holding time elapses after the human body is no longer detected by the human body detector 11. Furthermore, the security mode is basically the same as the normal mode, but when the human body is detected at a predetermined frequency by the human body detection unit 11, the control unit 14 controls the lighting unit 15 to blink the light source La. This is an operation mode different from the normal mode in that an alarm operation is performed to output the alarm sound by controlling the alarm output unit 13. That is, when a human body is not detected in the normal mode and the crime prevention mode, the lighting fixture 1 of this embodiment operates as a nightlight.

  As shown in FIG. 1, the human body detection unit 11 includes, for example, a pyroelectric sensor 11a arranged so that infrared light emitted from a human body in the detection range is incident thereon, and a collector as a constant voltage source via a resistor R1. And an NPN transistor Q1 that is turned on when the human body is detected by the pyroelectric sensor 11a with the emitter connected to the ground. The output node is a connection point between the resistor R1 and the transistor Q1. That is, as shown in FIG. 5, the output voltage of the human body detection unit 11 is at the L level when the human body is detected, and is at the H level when the human body is not detected.

  The brightness detection unit 12 includes a photo IC diode PD having an anode side connected to the ground via a resistor R2 and a cathode side connected to a constant voltage source so that external light is incident thereon. The photo IC diode PD And a connection point between the resistor R2 and the resistor R2. That is, the output voltage of the brightness detector 12 increases as the surroundings become brighter.

  The alarm output unit 13 includes a parallel circuit of a piezoelectric buzzer BZ and a booster coil L1. The boost ratio of the boost coil L1 is, for example, 4: 1.

  The control unit 14 includes a microcomputer 14a. The microcomputer 14a has a setting terminal T1 to which a setting voltage Vdd, which is a DC voltage for setting a daytime / nighttime threshold TH1, which will be described later, is input, a ground terminal T2 connected to the ground, and a resistor R3. Connected to the output terminal of the brightness detection unit 12, that is, the connection point between the photo IC diode PD and the resistor R2, via the resistor R4, and the human body detection terminal T3 connected to the output, that is, the connection point between the resistor R1 and the transistor Q1. A brightness detection terminal T4 and a buzzer control terminal T5 for controlling the piezoelectric buzzer BZ are provided. A connection point between the resistor R4 and the brightness detection terminal T4 is connected to the ground via the capacitor C1. That is, the output voltage of the brightness detection unit 12 is input to the brightness detection terminal T4 after being smoothed by the capacitor C1. The microcomputer 14a includes circuits that A / D convert analog voltages input from the setting terminal T1 and the brightness detection terminal T4, respectively.

  Here, one end of the parallel circuit of the piezoelectric buzzer BZ and the booster coil L1 of the alarm output unit 13 is connected to a connection point between the resistor R4 and the brightness detection unit 12 via the diode D1, and the other end is an NPN transistor. It is connected to the ground via Q2. The diode D1 is provided in order to prevent the voltage boosted by the boosting coil L1 from being applied with a reverse bias to the brightness sensor unit 12. The buzzer control terminal T5 of the microcomputer 14a of the control unit 14 is connected to the base of the transistor Q2, and the transistor Q2 is turned on / off by the microcomputer 14a. That is, the piezoelectric buzzer BZ is driven by a ringing signal that is a rectangular wave input from the control unit 14 to the transistor Q2, and the voltage applied to the piezoelectric buzzer BZ at that time (the volume of the piezoelectric buzzer BZ) is the charge voltage of the capacitor C1. The higher the brightness, that is, the higher the brightness detected by the brightness detection unit 12, the higher (larger).

  Hereinafter, the operation in the crime prevention mode that is the gist of the present embodiment will be described.

  As shown in FIG. 5, in the normal state where the human body is not detected by the human body detection unit 11, the control unit 14 turns off the light source La during the period when the output of the brightness detection unit 12 exceeds the predetermined day / night threshold value TH1. The light source La is turned on at a dimming ratio of 10%, for example, during a period in which the output of the brightness detector 12 is below the day / night threshold value TH1.

  Further, when a human body is detected by the human body detection unit 11, the control unit 14 starts rated lighting of the light source La when the output of the brightness detection unit 12 is lower than the day / night threshold value TH1. Furthermore, time measurement for 10 seconds is started both in the case where the output of the brightness detection unit 12 is lower than the daytime / nighttime threshold TH1 and in the case where the output is higher. If the human body is detected intermittently, for example, three times or more in this 10 seconds, the control unit 14 sounds the piezoelectric buzzer BZ of the alarm output unit 13 for the next 10 seconds after the timing is finished, and outputs an alarm sound. And an alarm operation of blinking the light source La. In addition, a configuration may be adopted in which the timing operation is omitted, and when a human body is detected, the operation immediately shifts to an alarm operation. When the piezoelectric buzzer BZ is sounded, the frequency of the sounding signal for turning on and off the transistor Q2 of the alarm output unit 13 is periodically switched, for example, alternately at intervals of 0.2 second between 4 kHz and 2 kHz. In this case, it is possible to make it easier to hear compared to the case where the frequency is constant. In order to blink the light source La, for example, on / off is switched every 0.5 seconds. Further, when an alarm operation is performed, the timing for returning the light source La from the rated lighting to the dimming ratio of 10% is after a predetermined post-alarm holding time has elapsed after the end of the alarm operation.

  Here, based on the provisions of Paragraph 1 of Article 16 of the Basic Environment Law, it is desirable that environmental conditions related to noise should be maintained in order to preserve the living environment and contribute to the protection of human health (hereinafter referred to as “Environmental Standards”). ") Is defined as shown in the following table.

  Therefore, when determining the volume of the alarm sound in the alarm operation, the volume of the alarm sound is preferably 45 dB at midnight at a position 1 m away from the alarm output unit 13. If the alarm sound volume is set as described above, the sound volume generally decreases by 6 dB when it is 1 m away. Therefore, the alarm sound volume at a position 2 m away from the alarm output unit 13 is 39 dB at midnight. Meet the environmental standards in

  When the alarm sound volume at midnight is set as described above, if the voltage applied to the piezoelectric buzzer BZ during the day is set to 8 times the value during the night, the voltage applied to the piezoelectric buzzer BZ is generally doubled. Then, the volume increases by 6 dB, so the volume of the alarm sound at a position 1 m away from the alarm output unit 13 is 63 dB in the daytime. Since this volume exceeds the environmental standards for noise in the daytime of “commercial and industrial areas”, it can be said that a sufficient threatening effect can be obtained even in a slightly noisy environment.

  According to the above configuration, the brighter the brightness detected by the brightness detector 12, the higher the volume of the warning sound. Therefore, in the daytime when there is a lot of noise, the volume of the warning sound is increased to increase the intimidating effect. At night, the volume of the alarm sound can be reduced to reduce the harm of noise. Further, since the voltage applied to the piezoelectric buzzer BZ of the alarm output unit 13 when the alarm sound is output is the charging voltage of the capacitor C1 that continuously changes with respect to the brightness detected by the brightness detection unit 12, the alarm sound The change in volume of the sound is continuous with respect to the change in brightness, and the volume of the alarm sound does not change abruptly.

  Further, for example, when the volume of the alarm sound output from the alarm output unit 13 is switched by a switch, the number of circuit components corresponding to the number of switching stages is required, but in this embodiment, the charging voltage is continuously increased according to the brightness. Since the volume of the alarm sound is changed by using the capacitor C1 that changes with time, a simple configuration with fewer circuit components can be achieved as compared with the case where a switch is used.

  In the brightness detection unit 12, other known optical sensors such as CdS cells and photodiodes may be used instead of the photo IC diode PD.

  In the alarm output unit 13, a step-up transformer or a BTL (Balanced Transformer Less) connection may be used. Further, when the voltage input to the alarm output unit 13 is sufficiently high, the booster coil L1 may be omitted.

  Furthermore, instead of using a wireless signal, the transmitter 22 and the receiver 17 of the remote control device 2 may be connected by wire. Alternatively, instead of providing the receiving unit 17, an operation unit (not shown) that receives an operation input for switching the operation mode may be provided in the instrument body. Alternatively, the receiving unit 17 and the operation unit may be omitted, and the operation mode may be automatically switched according to the output of the brightness detection unit 12 and the time.

  In addition to incandescent bulbs, other light sources such as fluorescent lamps, light-emitting diodes, and xenon lamps may be used as the light source La. In particular, if a high-brightness xenon lamp is used as the light source La, the effect of intimidation by blinking can be enhanced. it can.

(Embodiment 2)
Since the basic configuration of the present embodiment is the same as that of the first embodiment, common portions are denoted by the same reference numerals, and detailed description and illustration are omitted.

  In the present embodiment, as shown in FIG. 6, the control unit 14 includes an output setting capacitor C <b> 2 whose charging voltage increases as the human body is detected by the human body detection unit 11, and the charging voltage of the output setting capacitor C <b> 2 is The difference from the first embodiment is that the higher the frequency, that is, the higher the frequency at which the human body is detected by the human body detection unit 11, the greater the volume output by the alarm output unit 13.

  More specifically, the output setting capacitor C2 is made of, for example, an electrolytic capacitor, one end of which is connected to the ground, and the other end is connected to a constant voltage source via a resistor R5 and a PNP transistor Q3. A discharge resistor R6 is connected in parallel to the output setting capacitor C2. Further, a resistor R7 is connected between the emitter and base of the transistor Q3. The base of the transistor Q3 is connected to the output terminal of the human body detection unit 11. During a period when the human body is detected by the human body detection unit 11, the transistor Q3 is turned on and the output setting capacitor C2 is charged. Conversely, during a period when no human body is detected by the human body detection unit 11, the transistor Q3 is turned off, and the output setting capacitor C2 is discharged via the resistor R6. That is, the higher the frequency at which the human body detection unit 11 detects a human body, the higher the charging voltage of the output setting capacitor C2. The charging voltage of the output setting capacitor C2 is input to the alarm output unit 13 via the diode D1.

  The connection point between the output setting capacitor C2 and the resistor R5 is connected to the output terminal of the brightness detector 12 via a diode D2 having the output setting capacitor C2 side as a cathode. That is, the brighter the brightness detected by the brightness detector 12, the higher the charging voltage of the output setting capacitor C2.

  According to the above configuration, as shown in FIG. 7, the higher the frequency at which a human body is detected by the human body detection unit 11, the greater the volume of the alarm sound output from the alarm output unit 13, and the more intimidating the effect. In addition, the voltage applied to the piezoelectric buzzer BZ of the alarm output unit 13 when the alarm sound is output is the charging voltage of the output setting capacitor C2 that continuously changes with respect to the ambient brightness and the frequency at which the human body is detected. The alarm sound volume changes continuously with the ambient brightness and the frequency of human detection, and the alarm sound volume does not change abruptly. Hard to give.

  For example, when the volume of the alarm sound output from the alarm output unit 13 is switched by a switch, the number of circuit components corresponding to the number of switching stages is required. In the present embodiment, however, the number of circuit parts depends on the brightness and the frequency of human body detection. Since the output setting capacitor C2 whose charging voltage continuously changes is used, a simple configuration with fewer circuit components can be achieved as compared with the case of using a switch.

  The connection by the diode D2 may be omitted, and the charging voltage of the output setting capacitor C2, that is, the volume of the alarm output unit 13 may be determined only by the frequency of human body detection by the human body detection unit 11.

It is a circuit diagram which shows the principal part of Embodiment 1 of this invention. It is a block diagram which shows the whole structure same as the above. It is a perspective view which shows an external appearance same as the above. It is a front view which shows the remote control apparatus used for switching of an operation mode same as the above. It is explanatory drawing which shows operation | movement same as the above. It is a circuit diagram which shows the principal part of Embodiment 2 of this invention. It is explanatory drawing which shows operation | movement same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lighting fixture 11 Human body detection part 12 Brightness detection part 13 Alarm output part 14 Control part 15 Lighting part 16 Instrument main body La Light source

Claims (4)

A human body detection unit that detects the presence of a human body in a predetermined detection range, a brightness detection unit that detects ambient brightness, an alarm output unit that outputs an alarm sound, and an alarm output unit according to the output of the human body detection unit And a control unit that outputs a warning sound by driving
The controller is configured to increase the volume of the alarm sound continuously as the brightness detected by the brightness detector increases. A human body detection unit that detects the presence of a human body in a predetermined detection range, an alarm output unit that outputs an alarm sound, and a control unit that drives the alarm output unit according to the output of the human body detection unit and outputs an alarm sound Prepared,
The control unit is an alarm device characterized in that the volume of the alarm sound is continuously increased as the frequency at which the presence of the human body is detected by the human body detection unit increases. A human body detection unit that detects the presence of a human body in a predetermined detection range, a brightness detection unit that detects ambient brightness, an alarm output unit that outputs an alarm sound, and an alarm output unit according to the output of the human body detection unit And a control unit that outputs a warning sound by driving
The control unit continuously increases the volume of the alarm sound as the brightness detected by the brightness detection unit is brighter, and increases the volume of the alarm sound as the human body detection unit detects the presence of the human body. An alarm device characterized by being continuously enlarged.   An illuminating device comprising: the alarm device according to any one of claims 1 to 3, a lighting unit that turns on a light source, and an appliance main body that holds the alarm device, the light source, and the lighting unit, respectively.

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