JP5474487B2 - Lighting device - Google Patents

Description

  The present invention relates to a lighting device that assists awakening by irradiating a sleeper with light.

  Conventionally, when using an alarm clock to wake up, an alarm sound is generated at the wake-up setting time, but since the depth of sleep of a person is constantly fluctuating, the alarm sound prompts the user to awaken and the sleep of the person The depth of is not constant. For this reason, it is known that a pleasant awakening is caused by an alarm sound from a relatively shallow sleep, but a sudden awakening occurs when the alarm sound is caused by a relatively deep sleep, and the awakening feeling is worsened.

  Then, in order to wake a sleeper comfortably, the alarm device using light is known (for example, refer to patent documents 1). This wake-up device irradiates the sleeper with light whose light output gradually increases from a predetermined time before the set-up time, promotes sleep sleep by the light-wakening action, and then awakens the sleeper with an alarm sound or the like . By gradually increasing the light output of the irradiating light in this way, a sudden awakening due to an alarm sound or the like from deep sleep can be avoided. However, when using such a wake-up device, the sleeper may wake up at a time that is too early with respect to the wake-up setting time due to individual differences in sleep sensitivity or light sensitivity before the wake-up setting time, In such a case, dissatisfaction occurs and it cannot be said that it is a pleasant awakening.

  In addition, there is known an illumination device that promotes a sleep according to the sleep depth of a sleeper before the set-up time (see, for example, Patent Document 2). This lighting device grasps the depth of sleep by detecting biological information such as a blood flow pulse wave of a sleeper, and adjusts the lighting in accordance with the depth of sleep. However, since such a lighting device needs to detect biological information of a sleeper, the device becomes complicated and the cost is high.

JP 7-318670 A JP 2008-086489 A

  An object of the present invention is to solve the above-described problems and to achieve a comfortable awakening of a sleeper at a low cost in an illumination device that supports the awakening by irradiating light to the sleeper.

In order to achieve the above object, the invention of claim 1 is directed to a light source unit, an input unit for inputting a wake-up set time, and the light source for awakening a sleeper at a predetermined time based on the wake-up set time. A lighting device comprising: a storage unit that stores a dimming schedule that gradually increases the light output of a unit over time; and a control unit that performs dimming control of the light source unit according to the dimming schedule, wherein the control unit Comprises detecting means for detecting that a sleeper has been awakened by operating the input unit after the operation of the dimming schedule is started, and the storage unit detects the detecting unit from the start of operation of the dimming schedule. The wake-up time required until the sleep of the sleeper detected or the light output when the sleeper's wake-up is detected is stored, and the control unit stores the wake-up time required or the light output upon wake-up stored in the storage unit. in response, the It is intended to modify the dimming schedule so that the main time awake by operation of the previous time to the dimming schedule starts than the floor set time.

According to a second aspect of the present invention, in the illumination device according to the first aspect, the control unit further corrects the dimming schedule so that the light output becomes equal to or higher than the light output at the time of waking at the wake-up setting time. is there.

According to the first aspect of the present invention, since the sleep unit's awakening is detected and the dimming schedule is corrected by the operation of the input unit, the dimming schedule corresponds to the individual difference of the sleeper. A pleasant awakening can be realized. Moreover, since it is not necessary to detect biometric information in the detection of a sleeper's awakening, the apparatus becomes low-cost. Furthermore, the sleep time of the sleeper by light is close to the set wake-up time, and the possibility of being awakened at a time that is too early is reduced, so that a comfortable sleep of the sleeper can be realized. Further, since the light irradiation time is shortened to the required awakening time, energy is saved.

  According to the second aspect of the present invention, the light output becomes equal to or higher than the light output at the time of waking at the wake-up setting time, so that sleep can be promoted to sleep and light sleep that is comfortable for the sleeper can be realized. In addition, the light output at the set-up time may be smaller than the maximum light output of the device as long as it is equal to or higher than the light output at awakening, and energy saving can be achieved.

The control block diagram of the illuminating device which concerns on the 1st Embodiment of this invention. The front view which shows the structural example of the apparatus. The figure which shows another structural example of the same apparatus. The figure which shows the predetermined dimming schedule in the same apparatus. The figure which shows the dimming schedule when an input part is operated during the dimming control in the apparatus. The figure which shows the light control schedule corrected in the same apparatus. The figure which shows the light control schedule corrected in the illuminating device which concerns on the 2nd Embodiment of this invention. The figure which shows the light control schedule corrected in the illuminating device which concerns on the 3rd Embodiment of this invention.

(First embodiment)
A lighting device according to a first embodiment of the present invention will be described with reference to FIGS. As illustrated in FIG. 1, the lighting device 1 includes a light source unit 2, an input unit 3 for inputting a wake-up setting time, a storage unit 4, a control unit 5 that performs dimming control on the light source unit 2, and a time Is provided with a clock unit 6 for measuring the time and a sound source unit 7 for generating an alarm sound. The storage unit 4 stores a dimming schedule for gradually increasing the light output of the light source unit 2 over time for awakening of the sleeper at a predetermined time with the wake-up setting time as a reference. The control unit 5 performs dimming control of the light source unit 2 according to the dimming schedule. Moreover, the control part 5 has the structure which detects that the sleeper woke up by the change of the input signal input into the control part 5 by operating the input part 3 after the operation | movement of a light control schedule was started. This constitutes a detecting means for detecting that the sleeper has awakened. The memory | storage part 4 memorize | stores the light output (light output at the time of awakening) when the awakening time required from the start of operation | movement of a light control schedule to the awakening of the sleeper detected by the detection means or the sleeper's awakening is detected. The control unit 5 corrects the dimming schedule according to the required wake-up time or the light output at wake-up stored in the storage unit 4.

  The light source unit 2 irradiates light under the dimming control of the control unit 5, has a light source and a lighting circuit for turning on the light source, and is provided so as to irradiate the sleeper's face. . The light source may be any light source such as a fluorescent lamp or an LED. The input unit 3 includes, for example, a button or a switch, and the operation adjusts the time, inputs the wake-up time, sets the wake-up, stops the alarm sound, cancels the snooze, adjusts the light output, and turns on / off. Is called. The storage unit 4 includes a readable / writable memory built in or external to the control unit 5, and stores information used for dimming control. Information used for dimming control includes a dimming schedule, a wake-up setting time, a wake-up time required, a light output at wake-up time, and the like.

  The control unit 5 is composed of, for example, a microcontroller, and receives a wake-up set time from the input unit 3, acquires current time information from the clock unit 6, and based on information stored in the storage unit 4 2 and the sound source unit 7 are controlled. The detection means for detecting that the sleeper has awakened may be realized by executing the program of the control unit 5. The clock unit 6 measures the current time and provides the current time information to the control unit 5. The clock unit 6 has a display unit including a liquid crystal panel and displays the current time. The sound source unit 7 includes, for example, a buzzer, a speaker, and the like, and generates an alarm sound for prompting the sleeper to wake up under the control of the control unit 5.

  FIG. 2 shows a configuration example in which the illumination device 1 is integrally configured. The lighting device 1 is a night stand type, and includes a light source unit 2 and an instrument body 8. The light source unit 2 is supported on the upper part of the instrument body 8 by an arm 81. The instrument body 8 is housed in a housing, has an input unit 3 and a clock unit 6 on the front surface of the housing, and incorporates a storage unit 4, a control unit 5, and a sound source unit 7. This illuminating device 1 is installed and used near bedding.

  A configuration example different from the above is shown in FIG. The illumination device 10 includes a light source unit 2 and a remote control unit 9 that remotely operates the light source unit 2. The light source unit 2 is, for example, a ceiling light, and includes a control unit 5 and is installed near the ceiling. The remote control unit 9 has an input unit 3 and a clock unit 6 on the front surface thereof, and has a storage unit 4 and a sound source unit 7 built in, for example, a sleeping person's bedside. The sound source unit 7 may be built in the light source unit 2. The remote control unit 9 transmits the dimming schedule stored in the storage unit 4 to the light source unit 2 as illumination control information S wirelessly or by wire. The control unit 5 of the light source unit 2 performs dimming control on the light source unit 2 according to the received illumination control information S.

  The operation of the illumination device 1 configured as described above will be described in detail with reference to FIGS. FIG. 4 shows a predetermined dimming schedule in the lighting device 1. The dimming schedule defines the light output L of light irradiated at time t and is used for dimming control of the light source unit 2. The light output L of light irradiated according to the dimming schedule has an irradiation pattern that gradually increases with time. In the irradiation pattern Ps according to the predetermined dimming schedule, the light output L gradually rises from the irradiation start time ta to the time t1, rises relatively quickly from the time t1 to the time t2, and then gradually rises to set the wake-up setting time The maximum light output Lmax is reached at tb. The shape of the irradiation pattern Ps is not limited to a curved line, and may be a broken line or the like. The irradiation start time ta and the irradiation pattern Ps are determined based on the wake-up setting time tb and the like. The irradiation start time ta is, for example, 30 minutes before the wakeup set time tb as an initial value. Such a light control schedule is memorize | stored in the memory | storage part 4 as a function of the light output L with respect to the time t, for example.

  FIG. 5 shows a dimming schedule when the input unit 3 is operated during dimming control of the light source unit 2. The irradiation pattern Pw in this case is as shown in the figure. The user inputs a desired wake-up setting time tb by operating the input unit 3, turns on the wake-up setting, and goes to bed. When the current time acquired from the clock unit 6 reaches the irradiation start time ta, the control unit 5 starts the operation of the dimming schedule, and the light source unit 2 starts irradiating light to the user (sleeper). The light output L of the light source unit 2 gradually increases with the same irradiation pattern Pw as the irradiation pattern Ps according to a predetermined dimming schedule. The user is encouraged to sleep by light. When the user wakes up at a time tw earlier than the wake-up setting time tb, the user operates the input unit 3 to leave the wake-up setting with the wake-up setting turned off, or turns off the light source unit 2 with the wake-up setting turned on and then sleeps again. To do. The light output L is the wake-up light output Lw at the wake-up time tw, and is set to 0, that is, turned off by the operation of the input unit 3.

  When the alarm setting is turned off, the lighting device 1 releases the snooze and ends the operation of the dimming schedule. When the light source unit 2 is turned off with the wake-up setting turned on, the control unit 5 sets the light output L with the irradiation pattern Pw that becomes the maximum light output Lmax at the wake-up setting time tb as a snooze, that is, the function of preventing sleep by sleeping twice. The alarm sound is generated in the sound source unit 7 at the set-up time tb. At this time, the user who wakes up turns off the wake-up setting and leaves the bed. If snooze is not canceled after the set-up time tb, the sound source unit 7 generates an alarm sound after a predetermined time.

  On the other hand, when the input unit 3 is operated at time tw, the detection unit of the control unit 5 detects that the sleeper has awakened. The control unit 5 stores the time (tw−ta) from the irradiation start time ta to the awakening time tw in the storage unit 4 as the required awakening time Tw. As described above, the lighting device 1 does not need to detect biological information such as a blood flow pulse wave in detecting the awakening of the sleeper, so that the cost of the device is reduced.

  FIG. 6 shows a dimming schedule modified according to the required awakening time Tw. The irradiation pattern P1 according to this dimming schedule is as shown in the figure. When the wake-up setting is turned on again, the control unit 5 reads the wake-up time Tw from the storage unit 4, and the operation of the dimming schedule is started at the time tc that is the wake-up time Tw before the wake-up setting time tb. Modify the dimming schedule to The illuminating device 1 starts light irradiation at a time tc later by the time ΔT than the irradiation start time ta before the correction according to the corrected dimming schedule, gradually increases the light output L, and maximizes the light at the wake-up set time tb. Irradiate light of output Lmax. For this reason, the sleeper's awakening time by light is close to the wake-up set time tb, and the possibility of being awakened at an early time is reduced, so that the sleeper's comfortable awakening can be realized. Further, the illumination device 1 is energy saving because the light irradiation time is shortened to the required awakening time Tw.

(Second Embodiment)
An illumination device according to a second embodiment of the present invention will be described. The illuminating device 1 of this embodiment has the same configuration as that of the first embodiment (see FIG. 1), and the method of correcting the dimming schedule is different. The detection means of the control unit 5 detects that the sleeper has been awakened at the awakening time tw, as in the first embodiment (see FIG. 5). The control unit 5 stores the light output L at the awakening time tw in the storage unit 4 as the awakening light output Lw. The awake light output Lw is less than or equal to the maximum light output Lmax of the device.

  FIG. 7 shows a dimming schedule modified according to the light output Lw at the time of awakening. When the wake-up setting is turned on again, the control unit 5 reads the wake-up light output Lw from the storage unit 4 and corrects the dimming schedule so that the light output L becomes equal to or higher than the wake-up light output Lw at the wake-up setting time tb. . As for the irradiation pattern P2 by the light control schedule after correction, it is desirable for the light output L to become substantially the same as the awake light output Lw at the wake-up setting time tb. The lighting device 1 starts light irradiation at the irradiation start time ta according to the modified dimming schedule, and gradually increases the light output L so as to be equal to or higher than the awake light output Lw at the wakeup set time tb. An alarm sound is generated.

  The lighting device 1 has the dimming schedule corrected as described above, and the light output L becomes greater than or equal to the awake light output Lw at the wake-up set time tb. A pleasant awakening can be achieved. Further, the light output L at the set-up time tb may be smaller than the maximum light output Lmax of the device as long as it is equal to or higher than the awake light output Lw, and energy saving can be achieved.

(Third embodiment)
A lighting device according to a third embodiment of the present invention will be described. The lighting device of the present embodiment has the same configuration as that of the first and second embodiments (see FIG. 1), and the method of correcting the dimming schedule is different. The detection means of the control unit 5 detects that the sleeper has awakened at the awakening time tw, as in the first and second embodiments (see FIG. 5). The control unit 5 stores in the storage unit 4 the awakening time Tw required from the irradiation start time ta to the awakening time tw and the awake light output Lw at the awakening time tw.

  FIG. 8 shows a dimming schedule modified according to the awakening time Tw and the light output Lw at awakening. When the wake-up setting is turned on again, the control unit 5 reads the wake-up time Tw and the wake-up light output Lw from the storage unit 4, and the dimming schedule at the time tc that is the wake-up time Tw before the wake-up set time tb. Then, the dimming schedule is corrected so that the light output L becomes equal to or higher than the awake light output Lw at the wake-up set time tb. As for the irradiation pattern P3 by the dimming schedule after correction, it is desirable that the light output L is substantially the same as the light output Lw at awakening at the wake-up setting time tb. The lighting device 1 starts light irradiation at the time tc according to the modified dimming schedule, gradually increases the light output L to be equal to or higher than the awake light output Lw at the wake-up set time tb, and an alarm at the wake-up set time tb Generate sound.

  The lighting device 1 according to the present embodiment corrects the dimming schedule as described above, so that the dimming schedule corresponds to individual differences among sleepers, and the effects of both the first and second embodiments are obtained. And a comfortable awakening of the sleeper can be realized.

  In the first to third embodiments, the corrected dimming schedule is further modified by the required awakening time Tw or the awakening light output Lw in the dimming schedule. However, when the dimming schedule is corrected according to the daily required wake-up time Tw or the light output Lw at wake-up, the influence of the daily mental and physical state change of the user is strongly reflected and may vary greatly. Therefore, for example, the same dimming schedule is maintained for a predetermined period, and the control unit 5 calculates the average value of the wake-up time Tw and the wake-up light output Lw during the predetermined period, and the dimming used for the next predetermined period according to the values. The schedule may be corrected. The predetermined period is, for example, one week. Thereby, the fluctuation | variation of a light control schedule is relieve | moderated and the illuminating device 1 can perform support of the stable awakening.

  In addition, this invention is not restricted to the structure of said embodiment, A various deformation | transformation is possible in the range which does not change the summary of invention. For example, the control unit 5 may calculate a moving average of a predetermined number of days for each of the wake-up time Tw and the light output Lw at the time of wake-up, and correct the dimming schedule every day according to the moving average value. Thereby, even if the dimming schedule is corrected every day, the fluctuation is alleviated.

  In the first embodiment, when the sleeper's awakening is not detected in the time from the irradiation start time ta to the wake-up set time tb, the sleeper wakes up at the time tw after the alarm sound at the wake-up set time tb. Is detected and tw> tb. Since Tw = tw−ta and tc = tb−Tw, tc <ta. Therefore, the control unit 5 may correct the dimming schedule so that the operation of the dimming schedule is started at a time tc earlier than the irradiation start time ta before the correction. Thereby, the awakening action of light increases and the possibility that the sleeper is awakened by the alarm sound from deep sleep is reduced. Further, an upper limit value may be provided for the light irradiation time (tb-tc). The upper limit is, for example, 30 minutes. Thereby, the illuminating device 1 becomes energy saving.

  In the second embodiment, the light output L at the wake-up set time tb of the irradiation pattern P2 according to the dimming schedule is lower than the maximum light output Lmax, and the sleeper awakens during the time from the irradiation start time to the wake-up set time tb. If not detected, the control unit 5 may correct the dimming schedule so that the light output L at the wakeup set time tb is increased by a predetermined amount. Thereby, the awakening action of light increases and the possibility that the sleeper is awakened by the alarm sound from deep sleep is reduced.

DESCRIPTION OF SYMBOLS 1, 10 Illumination device 2 Light source part 3 Input part 4 Storage part 5 Control part L Light output Lw Light output Ps, P1, P2, P3 at the time of awakening Irradiation pattern t time tb Wake-up set time Tw Awakening time required

Claims (2)

A light source, an input unit for inputting a wake-up set time, and a dimming schedule for gradually increasing the light output of the light source unit over time for awakening of a sleeper at a predetermined time based on the wake-up set time A lighting device comprising: a stored storage unit; and a control unit that performs dimming control of the light source unit according to the dimming schedule,
The control unit has detection means for detecting that a sleeper is awakened by operating the input unit after the operation of the dimming schedule is started,
The storage unit stores the light output when the awakening time required from the start of operation of the dimming schedule to the awakening of the sleeper detected by the detection unit or the awakening of the sleeper is detected,
The control unit is configured to start the operation of the dimming schedule at a time earlier than the wake-up setting time by the required wake-up time according to the required wake-up time or the light output at wake-up stored in the storage unit. A lighting device characterized by correcting a dimming schedule. The lighting device according to claim 1, wherein the control unit further corrects the dimming schedule so that a light output becomes equal to or higher than the light output at the awakening at the wake-up setting time.

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