JP2021018878A - Controller and lighting control system - Google Patents

Abstract

To obtain a controller and a lighting control system that can easily control lighting fixtures.SOLUTION: A controller includes a voice sensor that detects voice and a calculation unit for changing a lighting state of the lighting fixtures when a frequency, an amplitude, or a length of the voice is within a predetermined range.SELECTED DRAWING: Figure 2

Description

The present invention relates to a controller and a lighting control system.

Patent Document 1 discloses a comfort improvement support device. This support device analyzes the voice of the infant to determine the emotion of the infant and analyzes the condition of the indoor environment based on the detected indoor environment condition. Then, the support device determines the remote control content of the home electric appliance based on the emotion of the infant and the indoor environment condition, and controls the transmission of the infrared signal corresponding to the remote control content to control the operation of the home electric appliance. Home appliances include air conditioners, televisions and lighting.

Japanese Unexamined Patent Publication No. 2006-338476

In Patent Document 1, an emotion analysis program based on an emotion determination table is used to perform voice analysis of infant voices to determine emotions. In addition to this, each home appliance is controlled by using an indoor environment analysis program, a home appliance control program, and the like. Therefore, the control of home appliances may be complicated.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to obtain a controller and a lighting control system capable of easily controlling a lighting fixture.

The controller according to the present invention includes a voice sensor that detects voice and a calculation unit that changes the lighting state of the luminaire when the frequency, amplitude, or length of the voice is within a predetermined range.

In the controller according to the present invention, when the frequency, amplitude or length of the sound is within a predetermined range, the lighting state of the luminaire is changed. Therefore, the luminaire can be easily controlled.

It is a figure explaining the structure of the lighting control system which concerns on Embodiment 1. FIG. It is a figure explaining the structure of the controller which concerns on Embodiment 1. FIG. It is a figure explaining the electric signal which converted the voice detected by the voice sensor which concerns on Embodiment 1. FIG. It is a figure explaining the structure of the lighting control system which concerns on 1st modification of Embodiment 1. FIG. It is a figure explaining the structure of the lighting control system which concerns on the 2nd modification of Embodiment 1. FIG. It is a figure explaining the operation of the lighting control system which concerns on Embodiment 2. FIG.

The controller and the lighting control system according to the embodiment of the present invention will be described with reference to the drawings. The same or corresponding components may be designated by the same reference numerals and the description may be omitted.

Embodiment 1.
FIG. 1 is a diagram illustrating a configuration of a lighting control system 100 according to a first embodiment. The lighting control system 100 includes a controller 1 and a plurality of lighting fixtures 2. The controller 1 is connected to a plurality of lighting fixtures 2 by a communication line 61. The controller 1 controls a plurality of lighting fixtures 2. The number of lighting fixtures 2 included in the lighting control system 100 may be one or more.

The controller 1 is installed on the ceiling or the like. The controller 1 performs ON / OFF control, dimming control, or color matching control for the plurality of lighting fixtures 2. The controller 1 and the luminaire 2 perform wired communication via the communication line 61. The controller 1 and the luminaire 2 perform communication by a PWM (Pulse Width Modulation) signal, serial communication, or the like. As will be described later, the controller 1 and the luminaire 2 may perform wireless communication.

The luminaire 2 has a light source and a power source for turning on the light source. The light source is, for example, an LED, a fluorescent lamp, or an incandescent light bulb. The power supply of the luminaire 2 turns on the light source in response to the signal from the controller 1. The power supply of the luminaire 2 does not have to directly receive the signal from the controller 1. The luminaire 2 may have a built-in adapter for communication, and the power supply may be controlled by a signal from the controller 1 via the adapter.

Further, the controller 1 communicates with the setting device 3 by wireless communication 62. The wireless communication 62 is infrared communication or the like. The setting device 3 is, for example, a wireless remote controller. Upon receiving the operation command from the setting device 3, the controller 1 controls the luminaire 2 in response to the operation command. As a result, the user can easily turn on / off, dimming, and toning the lighting fixture 2 by operating the setting device 3. Further, the controller 1 stores the information transmitted from the setting device 3 in the storage unit 1d described later. As a result, the user can set the parameters in the controller 1 by transmitting the parameters used for controlling the luminaire 2 from the setting device 3. The parameters are parameters for scheduled operation, parameters for various sensors described later, and the like.

FIG. 2 is a diagram illustrating a configuration of the controller 1 according to the first embodiment. The controller 1 includes a calculation unit 1a. The calculation unit 1a performs a calculation for controlling the luminaire 2. The calculation unit 1a includes, for example, a microcomputer.

The controller 1 includes a power generation unit 1e. The power generation unit 1e receives power from an external commercial power source and generates a DC power source for operating the microcomputer or the like of the calculation unit 1a. The calculation unit 1a operates by being supplied with electric power from the power generation unit 1e. The power generation unit 1e may supply electric power to various sensors, a setting unit 1b, a storage unit 1d, and a dimming / coloring output unit 1k included in the controller 1.

The controller 1 includes a setting unit 1b. The setting unit 1b has a communication unit 1c that communicates with the setting device 3. The communication unit 1c includes a light receiving unit and a transmitting unit for infrared signals. When the user transmits an operation command for ON / OFF, dimming, or toning of the lighting fixture 2 from the setting device 3, the setting unit 1b receives the operation command at the light receiving unit. The setting unit 1b notifies the calculation unit 1a of the operation command as operation data.

The calculation unit 1a calculates the control data according to the operation data by calculation. As a result, the calculation unit 1a transmits the control data to the dimming and toning output unit 1k. The dimming and toning output unit 1k transmits control data to the luminaire 2. The dimming and toning output unit 1k transmits control data as an analog PWM signal or a digital signal.

The controller 1 includes an illuminance sensor 1h. The illuminance sensor 1h detects the brightness of the surroundings and notifies the calculation unit 1a of the detected data. The illuminance sensor 1h detects, for example, the brightness of the floor surface or work surface below. The calculation unit 1a calculates an appropriate dimming rate or color temperature according to the notified illuminance, and transmits control data to the dimming toning output unit 1k.

The parameters for feedback control by the illuminance sensor 1h can be set by the user by transmitting from the setting device 3. When the controller 1 receives the parameter by the setting unit 1b, the controller 1 stores the parameter in the storage unit 1d. The parameter is, for example, a reference brightness, a target brightness, or an illuminance value for relative control. The calculation unit 1a controls the dimming rate of the luminaire 2 so that the target brightness is realized with respect to the brightness detected by the illuminance sensor 1h, for example.

The controller 1 includes a motion sensor 1j. The motion sensor 1j detects the presence of a human body in the surroundings. The motion sensor 1j detects, for example, the presence of a human body below the motion sensor 1j. When the motion sensor 1j detects the human body, the motion sensor 1j notifies the calculation unit 1a of the detection data. The calculation unit 1a collates the detection data with the parameters stored in the storage unit 1d in advance, and calculates the control data of the lighting fixture 2. The control data is transmitted from the dimming toning output unit 1k to the luminaire 2. As a result, the calculation unit 1a controls lighting or increasing the dimming rate.

Further, when the motion sensor 1j detects the absence of a person, the calculation unit 1a performs dimming or extinguishing control. This makes it possible to prevent unnecessary lighting when a person is absent.

For the motion sensor 1j, for example, a pyroelectric sensor can be used. The pyroelectric sensor detects that an object having a temperature difference from the background moves. Further, the motion sensor 1j may be an image sensor. The image sensor captures an image with a camera and detects a difference from the reference image. The image sensor detects the movement or stay state of a person by an algorithm for image analysis.

The controller 1 includes a voice sensor 1f. The voice sensor 1f detects voice. The voice sensor 1f is equipped with, for example, 1 g of a microphone for collecting sound. The voice sensor 1f detects the voice generated in the space where the controller 1 is installed.

The voice sensor 1f converts the detected voice into an electric signal. The voice sensor 1f extracts the frequency, amplitude, and length of the voice from the waveform of the electric signal. The voice sensor 1f may only convert voice into an electrical signal. In this case, the calculation unit 1a may perform the analysis of the electric signal.

The voice sensor 1f notifies the calculation unit 1a of the detection data. The detected data is the frequency, amplitude, length, etc. of the detected voice. The calculation unit 1a compares the detection data with the determination range, which is a parameter stored in the storage unit 1d in advance. When the detection data is within a predetermined determination range, the calculation unit 1a changes the lighting state of the luminaire 2. At this time, the calculation unit 1a transmits dimming or toning control data to the luminaire 2 so as to set the luminaire 2 in a state stored in the storage unit 1d in advance.

The storage unit 1d stores the parameters used for the calculation of the calculation unit 1a. The storage unit 1d is, for example, a flash ROM. Therefore, the parameters can be rewritten many times. The parameter may be the sensitivity of the illuminance sensor 1h, the motion sensor 1j, or the voice sensor 1f. Further, the parameter may be a fade value at the time of dimming.

Further, the setter 3 and the controller 1 may be capable of bidirectional communication. The setter 3 transmits a monitor signal to the controller 1. The controller 1 transmits various parameters set in the controller 1 to the setter 3 in response to the monitor signal. As a result, the current set value can be confirmed from the setting device 3.

Next, the control using the voice sensor 1f will be described in detail. FIG. 3 is a diagram for explaining a converted electric signal in which the voice detected by the voice sensor 1f according to the first embodiment is converted. The frequency of the voice indicates the pitch of the voice. Amplitude indicates the loudness of the voice. The length of the voice indicates the duration of the voice. The length of the voice may be the cycle of the voice.

Here, for example, control using a voice frequency will be described. Generally, the frequency of infant crying is about 440 Hz. The frequency of crying is generally 400 Hz to 500 Hz even when individual differences are taken into consideration. On the other hand, the voice of a general male is 120 Hz to 200 Hz, and the voice of a general female is 200 Hz to 300 Hz. Therefore, it can be said that the crying voice of an infant and the voice of an adult have clearly different frequency ranges. In the present embodiment, this difference in frequency is used to detect the crying of an infant and control the lighting fixture 2. Infants include newborns, babies and toddlers.

Specifically, the lighting device 2 is controlled when the infant cries due to hunger or discomfort during the nighttime bedtime. When the voice sensor 1f detects the voice, it analyzes the voice and transmits the frequency of the voice to the calculation unit 1a. When the frequency is within the determination range, the arithmetic unit 1a determines that the infant is crying. The determination range is, for example, 400 Hz to 500 Hz.

In this way, when the voice sensor 1f detects the voice of the infant, the calculation unit 1a changes the lighting state of the luminaire 2 from the first state to the second state having a higher dimming rate than the first state. The first state is, for example, a light-off state, and the dimming rate of the second state is, for example, 20%. Further, the calculation unit 1a may control the color temperature of the lighting fixture 2 when the frequency of the sound is within the determination range. The calculation unit 1a sets the color temperature of the luminaire 2 to, for example, 3000K. 3000K corresponds to, for example, the color of an incandescent lamp.

In general, it may be difficult for a caregiver to turn on or dimm the luminaire 2 with a wall switch or a remote controller when performing childcare work on a crying infant. Childcare work is, for example, breastfeeding, feeding milk or changing diapers. In particular, it is generally difficult to set a detailed dimming rate or color temperature before or at the same time as the childcare work. In addition, the operation of the wall switch or the remote controller takes time and effort, which may cause stress for the caregiver. On the other hand, in the present embodiment, an optimum lighting space can be created by detecting the crying of an infant.

Further, when the arithmetic unit 1a detects the crying voice, the illuminating device 2 is turned on at a dimming rate lower than that at the time of normal lighting. Further, when the arithmetic unit 1a detects the crying voice, the illuminating device 2 is lit at a color temperature lower than that at the time of normal lighting. As a result, when the infant cries, it is possible to prevent the brightness from suddenly changing significantly from the off state. Therefore, it is possible to prevent the infant sleeping facing the ceiling from becoming more uncomfortable. In addition, it can suppress adverse effects on the eyes or the brain.

In addition, during the nighttime bedtime, infants and caregivers wake up temporarily during childcare work. At this time, if the infant and the caregiver are completely awake, it may be difficult for the infant and the caregiver to go to bed again after the childcare work is completed. Therefore, by performing childcare work in an environment of low illuminance and low color temperature, it becomes possible to go to bed smoothly again.

Further, when the lighting device 2 is turned on by detecting the movement of the human body by the motion sensor 1j, the lighting device 2 may be turned on only by turning over at bedtime or the movement of the limbs of the infant or the caregiver. In addition, the lighting fixture 2 may be turned on when the childcare worker temporarily gets up and moves due to the need. Such unnecessary lighting may irritate and wake up sleeping infants.

On the other hand, in the present embodiment, the lighting state is not changed based on the detection result of the motion sensor 1j during the first control period in which the lighting state is controlled based on the voice detected by the voice sensor 1f. Therefore, the unnecessary lighting operation due to the movement of a person is not performed, and the lighting fixture 2 can be turned on only by crying. During the first control period in which the lighting state based on the voice is performed, the motion sensor 1j may not detect the movement of the human body. Further, even if the motion sensor 1j detects the movement of the human body in the first control period, the calculation unit 1a may not perform the control based on the detection data of the motion sensor 1j. Further, the controller 1 has a timer, and when the time corresponding to the first control period comes, the human body detection function of the motion sensor 1j may be automatically turned off. Further, in the first control period, when the light is off or in the first state, the lighting state may not be changed based on the detection result of the motion sensor 1j. That is, in the first control period, the lighting state may not be changed based on the detection result of the motion sensor 1j in the state before the calculation unit 1a detects the voice whose frequency is within the determination range.

Further, after detecting the sound whose frequency is within the determination range and turning on the luminaire 2, the calculation unit 1a continuously detects the sound to keep the lighting state. Further, the calculation unit 1a may hold the changed lighting state for a predetermined holding time after the voice whose frequency is within the determination range is stopped. That is, the calculation unit 1a may turn off the lighting fixture 2 after the holding time has elapsed after the crying is no longer detected. As a result, it is possible to save the caregiver from having to manually turn off the lights after the infant goes to bed again.

In the present embodiment, the calculation unit 1a changes the lighting state of the lighting fixture 2 when the frequency of the voice is within the determination range. As a modification of the present embodiment, in addition to the frequency, the amplitude or duration of the voice may be added to the criterion. That is, when the amplitude or length of the voice detected by the voice sensor 1f is within a predetermined determination range, the calculation unit 1a may change the lighting state of the lighting fixture 2. By combining a plurality of voice frequencies, amplitudes, or lengths to determine the crying of an infant, the possibility of erroneous determination can be reduced.

In addition, the crying voice of an infant may be determined only from the amplitude or duration of the voice. The loud voice that is generally emitted during bedtime is likely to be the crying of an infant. Therefore, for example, when the amplitude of the voice detected by the voice sensor 1f is equal to or greater than a predetermined value, the calculation unit 1a can determine that the voice is the crying voice of an infant. In addition, it is highly possible that the voice that is generally emitted continuously for a certain period of time or more during bedtime is the crying voice of an infant. Therefore, for example, when the length of the voice detected by the voice sensor 1f is equal to or longer than a predetermined value, the calculation unit 1a can determine that the voice is the crying voice of an infant.

As described above, in the lighting control system 100 of the present embodiment, the frequency, amplitude or length of the detected voice is compared with the determination range, and the lighting fixture 2 is changed to a predetermined state according to the comparison result. Just do it. Therefore, it is not necessary to determine emotions and the like from voice and perform complicated control. Further, the lighting fixture 2 may be controlled by the detection data of only the voice sensor 1f, and it is not necessary to analyze the indoor environment by using a plurality of sensors. Therefore, the luminaire 2 can be easily controlled. Further, the lighting control system 100 can be configured at low cost by a simple configuration.

The first state before the change of the lighting state is not limited to the extinguishing state, and may be a lighting state of low illuminance such as a dimming rate of 5%. Further, the second state may be a state in which the dimming rate is higher than that in the first state. The dimming rate in the second state may be, for example, 20% or less. Further, the dimming rate in the second state may be lower than that in the all-light state. In addition, the second state may be the full-light state as long as the baby is not uncomfortable. Further, the color temperature in the second state may be 3000 K or less. The color temperature of the second state may be a color temperature lower than that of the white LED or sunlight. The dimming rate and the color temperature in the first state and the second state may be arbitrarily set from the setting device 3 as parameters.

Further, the dimming rate may be fade-controlled when the dimming rate rises and falls. Fade control is a control that continuously changes the dimming rate.

Further, in the present embodiment, when the frequency of the voice detected by the voice sensor 1f is 400 Hz or more and 500 Hz or less, the calculation unit 1a determines that the voice is the crying voice of an infant and changes the lighting state. Not limited to this, the frequency determination range may be arbitrarily set as a parameter from the external setter 3. The determination range of 400 Hz or more and 500 Hz or less is stored in the storage unit 1d as an initial setting value. However, in general, there are individual differences in voice pitch, which varies with age. Therefore, the user may arbitrarily adjust and set the determination range according to the crying voice of the target infant. For example, the determination range may be set to a frequency higher than 300 Hz, which is a range higher than the voice of a general female.

In addition, there are generally individual differences in voice amplitude and crying length. Therefore, as with the frequency, the user may be able to adjust the determination range of the amplitude or the length. In addition, depending on the usage environment, a sound close to crying may be generated. In this case, the frequency of the sound or the like may be masked so that the calculation unit 1a does not detect the sound as a cry. From the above, only the crying of infants can be reliably detected.

Further, the determination range of the frequency, amplitude or length of the voice may be determined from the voice sampled by the voice sensor 1f. That is, the voice sensor 1f acquires the crying voice of the target infant as a sample. The calculation unit 1a stores the frequency, amplitude, and length of the crying voice of the target infant in the storage unit 1d. The calculation unit 1a determines the voice based on the stored frequency, amplitude, or length.

The user executes audio sampling by the setting device 3. As a result, the controller 1 is in the sample acquisition mode for a certain period of time. The sample acquisition mode lasts, for example, 1 minute. Within a certain period of time, the voice sensor 1f analyzes the detected voice, extracts the frequency, amplitude or length, and transmits the detection data to the calculation unit 1a. The calculation unit 1a determines the determination range from the detected data.

When voice is generated a plurality of times in a certain period, the voice sensor 1f extracts frequencies, amplitudes, or lengths of the plurality of voices and transmits them to the calculation unit 1a. The calculation unit 1a aggregates the detected data. The calculation unit 1a may determine the determination range from the maximum value and the minimum value of the plurality of detected data. Further, the calculation unit 1a may calculate an average value of a plurality of detected data, and may use a range of an arbitrary change width from the average value as a determination range.

In addition, if voices other than crying are sampled, the detection data may vary. Therefore, a sampling range in which the frequency, amplitude, and length are close to the crying voice of an infant may be set, and only the voice within the sampling range may be sampled. The sampling range can be set by the setting device 3.

Further, the determination range calculated by sampling may also be monitorable from the setting device 3. As a result, the user can confirm the determination range. With the sampling function, the determination range can be optimized regardless of the individual difference of the target infant, the age difference, or the installation environment of the lighting control system 100.

Further, here, an example in which the controller 1 lights the lighting fixture 2 in response to the crying of an infant has been described. Not limited to this, the present embodiment can be applied to the control of the luminaire 2 using any sound having a frequency, amplitude or length in a specific range. For example, when the controller 1 detects an adult voice, the lighting state of the lighting fixture 2 may be changed. In this case as well, the controller 1 does not need to analyze the user's emotions or the content of the user's remarks, and may be able to determine the frequency, amplitude, or length of the voice uttered by the user. Therefore, the luminaire 2 can be easily controlled.

FIG. 4 is a diagram illustrating a configuration of a lighting control system 200 according to a first modification of the first embodiment. The communication between the controller 1 and the luminaire 2 may be wireless communication 63. For the wireless communication 63, a wireless LAN (Local Area Network), ZigBee, a 920 MHz band specific low power wireless, or the like can be adopted. Further, when the controller 1 and the lighting fixture 2 perform wireless communication 63, the dimming and toning output unit 1k is equipped with an RF module or an antenna for wireless communication. The dimming and toning output unit 1k transmits control data to the luminaire 2 by means of an RF module or an antenna.

FIG. 5 is a diagram illustrating a configuration of a lighting control system 300 according to a second modification of the first embodiment. The lighting control system 300 includes a communication interface 4 and a plurality of controllers 1. Each of the plurality of controllers 1 controls one or more luminaires 2. The plurality of controllers 1 and the communication interface 4 are connected by a communication line 64. The communication interface 4 and the plurality of controllers 1 may be wirelessly connected.

The plurality of controllers 1 are controlled in conjunction with each other. The controller 1 is installed, for example, for each detection range of the sensor. By connecting a plurality of controllers 1 to each other, parameters or operating states can be shared.

For example, a plurality of controllers 1 are grouped. As a result, the contents set in one controller 1 by the setter 3 are also transmitted to the other controllers 1 in the same group. Therefore, the controllers 1 in the same group can have the same settings. Further, the individual address of the controller 1 may be specified and the setting may be performed for each controller 1. Further, the set value can be monitored by transmitting the monitor signal by designating the individual address of the controller 1 from the setter 3.

The communication interface 4 transmits and receives parameters set in the controller 1 to and from an external device (not shown). The external device is, for example, a personal computer or a tablet. Further, the communication interface 4 transmits commands such as ON / OFF, dimming, and toning of the lighting fixture 2 to the controller 1 in response to a signal from the external device.

The user may communicate with each controller 1 via the communication interface 4 by a personal computer or a tablet. The personal computer or tablet and the communication interface 4 communicate with each other by using a communication means such as a wired LAN, a wireless LAN, or Bluetooth (registered trademark). The user sets, controls, or monitors each controller 1 individually using a personal computer or a tablet. The user may control a plurality of controllers 1 in a group.

These modifications can be appropriately applied to the controller and the lighting control system according to the following embodiments. Since the controller and the lighting control system according to the following embodiments have much in common with the first embodiment, the differences from the first embodiment will be mainly described.

Embodiment 2.
FIG. 6 is a diagram illustrating the operation of the lighting control system 100 according to the second embodiment. The lighting control system 100 performs scheduled operation. The calculation unit 1a is in the voice detection mode in which the lighting state is controlled based on the voice as described in the first embodiment during the first control period such as sleeping in the day. Further, the calculation unit 1a is in a detection mode in which the lighting state is controlled based on the detection result of the motion sensor 1j or the illuminance sensor 1h during the second control period other than the bedtime zone in the day. The calculation unit 1a switches the operation mode by schedule control using a timer.

In the present embodiment, the first control period is from 22:00 to 6:00 the next morning. The second control period is from 6:00 to 22:00. The first control period and the second control period are not limited to this. For example, the first control period may be a time zone including midnight. Further, the second control period may be a time zone including the daytime.

As a result, during the first control period at night, a minimum lighting environment for childcare work is realized in response to the crying of the infant. In the example shown in FIG. 6, crying is detected three times during the first control period, and lighting is performed at a dimming rate of 20%.

During the second control period, it is necessary to obtain the brightness necessary for living safely. In the example shown in FIG. 6, the luminaire 2 is turned on at 6 am when the first control period is switched to the second control period. In the second control period, the illuminance sensor 1h detects external light. The outside light becomes brighter with the passage of time. Therefore, the required dimming rate decreases with respect to the target brightness. Therefore, the dimming rate decreases with the passage of time from 6 o'clock. In the example of FIG. 6, since sufficient brightness is obtained by the outside light from about 9:00 to about 15:00, the dimming rate is 0%.

From around 15:00, the outside light becomes darker with the passage of time. Therefore, the required dimming rate increases with respect to the target brightness. Therefore, the dimming rate increases with the passage of time from around 15:00, and the lighting state becomes the same as at 6:00 in the morning at around 18:00.

Further, in the second control period, the motion sensor 1j detects the presence or absence of a person. In the second control period, when the presence of a person is detected, the luminaire 2 is turned on. Further, in the second control period, when the absence of a person is detected, the luminaire 2 is turned off. Further, in the second control period, when the absence of a person is detected, the luminaire 2 may be dimmed. In the example of FIG. 6, the dimming rate decreases due to the absence of a person from 18:00 to 22:00.

The operation mode switching time is stored in the storage unit 1d. The switching time can be easily set by the user from the setting device 3 or the like. The first control period and the second control period may be set instead of the switching time. These parameters can be arbitrarily set according to the lifestyle pattern of the user and the like.

Further, the target brightness for each time zone and the control modes of the motion sensor 1j and the illuminance sensor 1h can be freely set as parameters. For example, in the second control period, the target brightness may be darker at night than in the daytime. Further, even in the second control period, it is not necessary to detect a person by the motion sensor 1j depending on the time zone. Further, even in the second control period, it is not necessary to detect the illuminance by the illuminance sensor 1h at night. These parameters are stored in the storage unit 1d.

The calculation unit 1a refers to the parameters stored in the storage unit 1d, and controls the lighting fixture 2 in time with the time based on the detection data of the illuminance sensor 1h, the motion sensor 1j, or the voice sensor 1f. As a result, energy saving can be realized by control using the illuminance sensor 1h or the motion sensor 1j in the daytime. In addition, at night, comfortable sleep and efficient childcare work can be automatically realized by control using the voice sensor 1f.

The technical features described in this embodiment may be used in combination as appropriate.

1 controller, 1a calculation unit, 1b setting unit, 1c communication unit, 1d storage unit, 1e power generation unit, 1f voice sensor, 1g microphone, 1h illuminance sensor, 1j motion sensor, 1k dimming toning output unit, 2 lighting Equipment, 3 setting device, 4 communication interface, 61 communication line, 62, 63 wireless communication, 64 communication line, 100, 200, 300 Lighting control system

Claims (16)

A voice sensor that detects voice and
When the frequency, amplitude or length of the voice is within a predetermined range, a calculation unit that changes the lighting state of the luminaire, and
A controller characterized by being equipped with. The calculation unit is characterized in that when the frequency, the amplitude or the length is within the range, the lighting state is changed from the first state to the second state in which the dimming rate is higher than that of the first state. The controller according to claim 1. The controller according to claim 2, wherein the first state is a light-off state. The controller according to any one of claims 1 to 3, wherein the calculation unit controls the color temperature of the luminaire when the frequency, the amplitude, or the length is within the range. The controller according to any one of claims 1 to 4, wherein the calculation unit changes the lighting state of the luminaire when the frequency of the voice is within the range. The controller according to any one of claims 1 to 5, wherein when the voice sensor detects the voice of an infant, the calculation unit changes the lighting state. The controller according to any one of claims 1 to 6, wherein the calculation unit changes the lighting state when the frequency is higher than 300 Hz. The controller according to claim 7, wherein the calculation unit changes the lighting state when the frequency is 400 Hz or more and 500 Hz or less. The calculation unit is characterized in that, after the voice whose frequency, amplitude or length is within the range is stopped, the lighting state after the change is held for a predetermined holding time. The controller according to any one of 8. The controller according to any one of claims 1 to 9, wherein the lighting state is not changed based on the detection result of the motion sensor during the period in which the lighting state is controlled based on the voice. .. Equipped with motion sensor or illuminance sensor
The calculation unit controls the lighting state based on the voice during the first control period of the day, and the second control period of the day is based on the detection result of the motion sensor or the illuminance sensor. The controller according to any one of claims 1 to 10, wherein the lighting state is controlled. The controller according to claim 11, wherein the first control period includes midnight. The controller according to claim 11 or 12, wherein the second control period includes daytime. The controller according to any one of claims 1 to 13, wherein the range is set from an external setter. The controller according to any one of claims 1 to 14, wherein the range is determined from the voice sampled by the voice sensor. The controller according to any one of claims 1 to 15.
With the lighting equipment
A lighting control system characterized by being equipped with.

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