CN114080083A

CN114080083A - Lighting device, lighting system, lighting method, and power failure detection device

Info

Publication number: CN114080083A
Application number: CN202110808923.XA
Authority: CN
Inventors: 尾山和也
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2020-08-21
Filing date: 2021-07-16
Publication date: 2022-02-22
Also published as: JP2022035821A; JP7490501B2

Abstract

The lighting device includes a light emitting unit, a power failure detection unit, and a control unit. The power failure detection unit detects a power failure based on the presence or absence of a radio wave from an external device. The control unit controls the light emitting unit to be turned on when the power failure detection unit detects a power failure.

Description

Lighting device, lighting system, lighting method, and power failure detection device

Technical Field

The invention relates to an illumination device, an illumination system, an illumination method, and a power failure detection device.

Background

In a building or the like, it is obligated to provide an emergency light that is turned on when power is cut off. This ensures minimum brightness of the emergency light even in the event of power failure due to a disaster or the like, and can contribute to safety of people.

On the other hand, a general household is not obligated to install an emergency lamp, and there is a disadvantage that the emergency lamp is not installed in a household at present. There is a standard that the emergency lamp is turned on even if the lamp reaches a certain level of heat in a fire, and the price is increased to ensure the standard. Therefore, this is purchased at home, and the burden becomes large.

Further, the emergency lamp is always on, and if the emergency lamp is installed in a home, there is a problem that the user may be dizzy at night, for example, when the emergency lamp is installed in a bedroom, the user may not fall asleep. In addition, there is a problem of wasting electric power.

Further, since the emergency light is switched to be driven by a battery when the power supply is stopped, a power switch such as a wall switch for switching on/off of a household 100V Alternating Current power supply (hereinafter, referred to as an AC (Alternating Current) power supply) cannot be turned off, and thus the emergency light is not suitable for being installed at home.

Although it is important to ensure brightness even in a household when power is off, the lighting device for household use is practically not supported at all. In addition, when another lighting device is installed for emergency, a large burden is imposed on equipment cost, engineering cost, and the like. Further, when installed in various places in a home, a plurality of lighting devices are required, and the burden of equipment cost, construction cost, and the like is increased.

As a technique related to these, there are inventions of home lighting devices disclosed in japanese patent laid-open nos. 2007 and 220688 and 2014 and 082910.

Japanese patent application laid-open No. 2007-220688 relates to an emergency lighting system in which a lamp is lit by an emergency power supply such as a secondary battery when a power supply that is commonly used such as an induction lamp or an emergency lamp fails. The emergency lighting system includes a plurality of lighting devices identified by addresses.

Each of the plurality of lighting devices is given a priority level of necessity of inspection according to an arrangement place, and when an abnormality occurs in a lighting device having a high priority level, the lighting device itself transmits the abnormality to the remote controller using the radio wave-based transmission/reception unit. The remote controller displays the address of the lighting device that has transmitted the abnormality signal on the display unit, and the lighting device having a lower priority transmits the inspection result of the inspection unit to the remote controller via the mutual communication unit when receiving the inspection result request signal from the remote controller.

Japanese patent application laid-open No. 2014-082910 relates to a power failure detection method for detecting a power failure state. According to the power outage detection method, a power outage is detected by comparing a reference voltage state in which at least one of weak voltages generated by line-to-line capacitance induction and line-to-line electromagnetic induction is detected in an off state of the power switch when no power outage occurs, with a monitor voltage state in which at least one of weak voltages generated by line-to-line capacitance induction and line-to-line electromagnetic induction is monitored, wherein a line between a wiring on a ground side of an indoor wiring and a wiring on a non-ground side provided by the power switch of the electrical equipment is a line.

Disclosure of Invention

In the emergency lighting system disclosed in japanese unexamined patent publication No. 2007-220688, when the remote controller detects that an abnormality has occurred in a lighting apparatus with a high priority, the inspection result is received from a lighting apparatus with a low priority, and therefore the inspector can easily perform maintenance. However, it is difficult to apply the emergency lighting system to a household lighting apparatus because the entire emergency lighting system needs to be set.

In the power failure detection method disclosed in japanese patent application laid-open No. 2014-082910, a special device for monitoring the voltage is required to detect the power failure, which causes a problem of high cost. Further, since the power switch needs to be replaced with a power switch including a portion for detecting a power failure, there is a problem that construction is required.

An object of one embodiment of the present invention is to provide an illumination device that can detect whether or not a power failure occurs without requiring special construction and that can be used as an emergency light.

In order to solve the above problem, an illumination device according to an aspect of the present invention includes a light emitting section; a power failure detection unit that detects a power failure based on the presence or absence of a radio wave from an external device; and a control unit configured to control the light emitting unit to be turned on when the power failure detection unit detects a power failure.

An illumination system according to an aspect of the present invention includes an illumination device and an external device, the illumination device including a light emitting section; a power failure detection unit that detects a power failure based on the presence or absence of a radio wave from an external device; and a control unit configured to control the light emitting unit to be turned on when the power failure detection unit detects a power failure.

An illumination method according to an aspect of the present invention includes a detection step of detecting a power failure based on presence or absence of a radio wave from an external device; and a control step of controlling the illumination to be turned on when the power failure is detected.

A power outage detection device according to an aspect of the present invention includes a power outage detection unit that detects a power outage based on the presence or absence of a radio wave from an external device.

Drawings

Fig. 1 is a block diagram showing a functional configuration of a lighting system according to a first embodiment of the present invention.

Fig. 2 is a diagram illustrating an example of the operation of the lighting device in a normal state.

Fig. 3 is a diagram illustrating an example of the operation of the lighting device at the time of power failure.

Fig. 4 is a diagram showing an example of an appearance of a remote controller for controlling a lighting device.

Fig. 5 is a flowchart for explaining the processing steps of the lighting system according to the first embodiment of the present invention.

Fig. 6 is a block diagram showing a functional configuration of a lighting system according to a second embodiment of the present invention.

Fig. 7 is a diagram illustrating an example of the operation of the lighting device at the time of power failure.

Fig. 8 is a diagram showing another example of the operation of the lighting device at the time of power failure.

Fig. 9 is a diagram showing still another example of the operation of the lighting device at the time of power failure.

Fig. 10 is a flowchart for explaining the processing procedure of the lighting system according to the second embodiment of the present invention.

Detailed Description

[ first embodiment ]

Hereinafter, one embodiment of the present invention will be described in detail. For convenience of explanation, the same components are given the same reference numerals, and the names and functions thereof are also the same. Therefore, a detailed description thereof will not be repeated.

< functional Structure of illumination System 100 >

Fig. 1 is a block diagram showing a functional configuration of an illumination system 100 according to a first embodiment of the present invention. The lighting system 100 includes a lighting device 1 and a wireless LAN (Local Area Network) router 2. As an example of the external device, a Wireless LAN router having a Wi-Fi (Wireless Fidelity) (registered trademark) function will be described, but the external device is not limited to this, and may be any external device that can communicate with the lighting apparatus 1 wirelessly and operate from an AC power supply in a home. In addition, it is assumed that the wireless LAN router 2 does not perform battery-based driving.

The lighting device 1 includes an led (light Emitting device) light Emitting unit 11, a wireless communication unit (power failure detection unit) 12, a controller (control unit) 13, an AC power supply unit 14, a secondary battery system 15, an ir (infrared ray) receiving unit 16, and an illuminance sensor 17. The lighting device 1 may be any lighting device that can be used at home, such as a petal-type ceiling lamp, a ceiling lamp, or a down lamp.

The LED light emitting unit 11 has a function of changing luminance, receives a control signal from the controller 13, and can illuminate a room or the like in which the lighting device 1 is installed with luminance according to the control from the controller 13.

The wireless communication unit (power failure detection unit) 12 is configured by a Wi-Fi (registered trademark) interface or the like, and performs wireless communication with the wireless LAN router 2. The wireless communication unit 12 transmits to the controller 13 whether or not the radio wave from the wireless LAN router 2 can be received. The controller 13 determines whether or not communication is possible and whether or not a Service Set Identifier (SSID) described later has failed. The wireless communication unit 12 may determine whether or not power is off based on whether or not communication is possible, or may determine whether or not power is off by comparing SSID values, and transmit the power to the controller 13.

The AC power supply unit 14 is supplied with AC power when a power switch such as a wall switch, not shown, is ON, and generates and outputs a dc voltage to be supplied to each unit in the lighting device 1. When the wall switch is OFF, the AC power supply unit 14 stops the supply of the dc voltage to each unit in the lighting device 1 without receiving the supply of the AC power.

The secondary battery system 15 is charged when the dc voltage is supplied from the AC power supply unit 14, and supplies the dc voltage to each unit in the lighting device 1 when the supply of the dc voltage is stopped from the AC power supply unit 14 (when the power switch is OFF) or in a power failure state. When the power switch is OFF or in a power failure state, the secondary battery system 15 supplies at least the dc voltage to the controller 13, and the controller 13 controls the supply of the dc voltage to other parts.

The Ir receiving unit 16 receives an instruction from a remote controller by receiving an infrared signal from the remote controller, which will be described later, and outputs the instruction content to the controller 13. The illuminance sensor 17 detects illuminance of a room or the like in which the lighting device 1 is installed, based on an instruction from the controller 13, and outputs illuminance data to the controller 13.

The controller 13 supplies the secondary battery system 15 with the dc voltage output from the AC power supply unit 14 in a state where the dc voltage is supplied from the AC power supply unit 14, that is, in a normal state, and charges the secondary battery system, and supplies the wireless communication unit 12 and the Ir receiving unit 16 with the dc voltage to operate.

In addition, in a normal state, when the controller 13 receives an instruction from the remote controller via the Ir receiving unit 16, each unit is controlled according to the instruction content. For example, when the controller 13 receives an instruction to turn on or off the LED light emitting unit 11 or change the brightness, the LED light emitting unit 11 is controlled according to the instruction content.

Further, when normal, the controller 13 controls the wireless communication section 12 to perform radio communication with the wireless LAN router 2, so that it can also be connected to a communication network such as the external internet through the wireless LAN router 2. When the wireless communication unit 12 normally receives a radio wave from the wireless LAN router 2, the controller 13 determines that the state is a normal state (not a power failure state). Further, the controller 13 receives the SSID from the wireless LAN router 2 via the wireless communication section 12, and holds the SSID as identification information for identifying the wireless LAN router 2 installed in the home.

On the other hand, when the supply of the dc voltage from the AC power supply unit 14 is stopped, the controller 13 operates in response to the supply of the dc voltage from the secondary battery system 15. The controller 13 periodically controls the wireless communication unit 12 to supply a dc voltage from the secondary battery system 15 to operate the wireless communication unit 12. Then, the controller 13 controls the wireless communication unit 12 to determine whether or not the radio wave can be received from the wireless LAN router 2.

When the radio wave can be received from the wireless LAN router 2, it is determined that only the power switch is OFF. At this time, it is possible to determine whether or not the radio wave is from the wireless LAN router 2 in the home by controlling the wireless communication section 12 to receive the SSID from the wireless LAN router 2 and comparing the SSID with the SSID of the wireless LAN router 2 placed in the home. This makes it possible to more accurately determine whether or not the power failure state is present.

Action of illumination device 1 at ordinary time

Fig. 2 is a diagram illustrating an example of the operation of the lighting device 1 in a normal state. When the AC power supply section 14 does not receive the supply of the AC power, that is, when there is no AC, the controller 13 controls the wireless communication section 12 to receive the electric wave from the wireless LAN router 2. When the wireless communication unit 12 can receive the radio wave from the wireless LAN router 2, it determines that only the power switch is OFF, and the controller 13 turns OFF the LED light emitting unit 11 and periodically supplies a dc voltage to the wireless communication unit 12 to cause the wireless communication unit 12 to monitor the communication of the wireless LAN router 2.

In addition, the controller 13 lights the LED light emitting unit 11 when the AC power supply unit 14 receives the supply of the AC power, that is, when the AC exists. In this case, it is not necessary to particularly judge whether or not there is a radio wave from the wireless LAN router 2.

Action of Lighting device 1 at Power off

Fig. 3 is a diagram illustrating an example of the operation of the lighting device 1 at the time of power failure. When the AC power supply section 14 does not receive the supply of AC power, that is, when there is no AC and when the radio wave from the wireless LAN router 2 is not received, the controller 13 determines that the power off state is present. The controller 13 controls the secondary battery system 15 to supply power to the LED light emitting unit 11, and controls the LED light emitting unit 11 to light up.

At this time, the controller 13 controls the secondary battery system 15 to supply a dc voltage to the illuminance sensor 17 and operate it. The illuminance sensor 17 detects the brightness of a room or the like in response to a request from the controller 13, and outputs the illuminance data to the controller 13. The controller 13 controls the LED light emitting unit 11 based on the illuminance data received from the illuminance sensor 17.

When the surrounding is determined to be bright based on the illuminance data from the illuminance sensor 17, the controller 13 turns off the LED light emitting unit 11 and periodically supplies a dc voltage to the wireless communication unit 12, thereby causing the wireless communication unit 12 to monitor the communication of the wireless LAN router 2.

When it is determined that the surroundings are dark based on the illuminance data from the illuminance sensor 17, the controller 13 turns on the LED light emitting unit 11 dark (weakly) and periodically supplies a dc voltage to the wireless communication unit 12, thereby causing the wireless communication unit 12 to monitor the communication of the wireless LAN router 2.

Fig. 4 is a diagram showing an example of an appearance of a remote controller that controls the lighting apparatus 1. The remote controller 3 can be set to a fixed mode and an automatic mode (a mode for automatically determining whether or not power is off). In addition, the controller 13 stores the signal that was last received from the remote controller 3.

The fixed mode is a mode in which the lighting-off button 31, the full-on button 32, and the power switch operate in a manner designated when the power failure is not detected or when the power failure is detected. The lighting device 1 is turned OFF even when the power switch is OFF, not when the power failure occurs, or when the fixed mode light-OFF button 31 is OFF when the power failure occurs. When the wall switch is turned ON from OFF, the lighting device 1 is turned ON.

Regardless of whether the operation mode is a normal mode or a power failure mode, which will be described later, the full-on button 32 in the fixed mode is pressed to be fully-on, and the light-off button 31 is pressed to be turned off. Even in the case of power failure, if the full open button 32 is pressed, the battery is fully opened until the battery is discharged.

In addition, when the light-OFF button 31 in the fixed mode is turned OFF during power failure, even when the power switch is ON and AC is supplied, the light-OFF is maintained so that the light-OFF is not turned ON at will when the power failure is recovered.

Further, in this case, a function of enabling forced lighting such as lighting when the power switch is rapidly turned from OFF to ON is added.

When the wireless communication unit 12 detects a power failure, the automatic mode is activated. Each button of the automatic mode of the remote controller 3 is a button for selecting an operation in the automatic mode.

When the automatic mode lighting button 33 is pressed in the light-off state at the time of power failure, the lighting device 1 is turned on at the previous setting, and the operation is automatically selected and turned on as described later. When the light-OFF button 34 is pressed, the lighting device 1 turns OFF, and is OFF until any operation (including power ON) is performed during a power failure. Therefore, when the power supply switch is turned ON, the power supply switch is turned ON at the last lighting, and when the power supply switch is turned OFF, the lamp is kept turned OFF.

If the max button 35 is pressed, the lighting device 1 is lit at the maximum brightness in the automatic mode. If the lighter button 36 is pressed, the lighting device 1 is brighter than the present brightness by one step (however, is lit at not more than the maximum brightness). If the darker button 37 is pressed, the lighting device 1 is one step darker than the current brightness. In addition, if the night light button 38 is pressed, the lighting device 1 is turned on at the brightness of a general night light. If the buttons 33-38 are pressed, the state is maintained. This state is also maintained by the controller 13 of the lighting device 1, and when the power failure state is reached, the automatic mode is started in this state. In addition, in the case of turning off the lamp, a state in which the lamp is turned on before turning off the lamp is also stored. The details of the respective buttons 33 to 38 in the automatic mode will be described with reference to a flowchart shown in fig. 10 described later.

In addition to the automatic mode lighting button 33, each button of the automatic mode of the remote controller 3 may instruct only the lighting device 1 to be lit at its brightness in a normal time (when AC supply is not performed). For example, the lighting device 1 may be configured to be turned on at the maximum brightness (fully-on state) when the maximum button 35 is pressed at the normal time.

< illumination System 100 Process flow >

Fig. 5 is a flowchart for explaining the processing steps of the lighting system 100 according to the first embodiment of the present invention. First, the controller 13 checks the operation mode and determines whether the operation mode is the normal mode (S1). The operation mode includes both a normal mode in a non-power-off state and a power-off mode in a power-off state.

As described above, when the operation mode is the normal mode (S1, Yes), the controller 13 performs the processing of step S2 and thereafter. When the operation mode is the power failure mode (S1, No), the controller 13 proceeds to the processing during power failure shown in fig. 10. The details of the processing in the power failure will be described later. The operation mode is set to the normal mode in the initial state.

In step S2, the controller 13 determines whether or not AC power is supplied to the AC power supply unit 14. If the AC power is supplied to the AC power supply section 14(S2, Yes), the normal action is performed (S3). Then, the process returns to step S1, and the subsequent processes are repeated.

If the AC power is not supplied to the AC power supply section 14(S2, No), the controller 13 controls the wireless communication section 12 to acquire the SSID. If the wireless communication unit 12 can acquire the SSID of the wireless LAN router 2 (Yes at S4), the controller 13 determines that only the power switch is OFF, turns OFF the LED light emitting unit 11 (S5), returns to step S1, and repeats the subsequent processing.

Further, if the wireless communication unit 12 cannot acquire the SSID of the wireless LAN router 2 (No at S4), the controller 13 determines that there is a power failure, sets the operation mode to the power failure mode, starts the timer (S7), and performs the processing after step S8. At this time, the controller 13 executes another task in parallel and notifies the occurrence of the power failure by sound or the like (S6).

In step S8, the controller 13 determines whether or not the lighting is normal lighting. If it is the normal lighting (S8, Yes), the process returns to step S1 and the subsequent processes are repeated.

When the lighting button 33 in the automatic mode of the remote controller 3 is pressed, it is determined that the lighting is not the normal lighting (No at S8), and the controller 13 controls the illuminance sensor 17 to acquire illuminance data of the room or the like. When the illuminance data acquired from the illuminance sensor 17 is equal to or greater than the predetermined value, that is, when it is determined that the room is bright (No at S9), the controller 13 returns to step S1 as it is and repeats the subsequent processing. This reduces unnecessary power consumption of the secondary battery system 15.

When the illuminance data acquired from the illuminance sensor 17 is equal to or less than the predetermined value, that is, when it is determined that the room is dark (Yes at S9), the controller 13 turns on the LED light emitting unit 11 at a luminance darker than the normal lighting, for example, at a luminance of about 10% of the normal lighting (S10), returns to step S1, and repeats the subsequent processing.

As described above, according to the lighting system 100 of the present exemplary embodiment, the wireless communication unit 12 determines whether or not power failure occurs based on the presence or absence of radio waves from the wireless LAN router 2. Therefore, the lighting device 1 can determine the power failure even if the wiring in the house is not specially constructed. In addition, a conventional power switch such as a wall switch can be directly used for instructing on/off of the LED light emitting unit 11 in a normal state.

Further, since the controller 13 controls the LED light emitting unit 11 to be turned on when the wireless communication unit 12 determines that there is a power failure, it can be used as an emergency light during a power failure.

Further, since the controller 13 controls the luminance of the LED light emitting unit 11 based on the illuminance data from the illuminance sensor 17 at the time of power failure, the power consumption of the secondary battery system 15 can be reduced.

[ second embodiment ]

Other embodiments of the present invention will be described below. For convenience of explanation, members having the same functions as those described in the above embodiments are given the same reference numerals, and the explanation thereof will not be repeated.

< functional Structure of illumination System 100 >

Fig. 6 is a block diagram showing a functional configuration of an illumination system 100' according to a second embodiment of the present invention. The lighting device 1' of the second embodiment is different from the lighting device 1of the first embodiment shown in fig. 1 in that a human body detection sensor 18, a microphone 22, and a speaker 23 are added, and the wireless communication section 12 is replaced with a communication means 19 including the wireless communication section 12.

The communication unit 19 includes a wireless communication section 12, a 5G interface 20, and a sound I/F21. The 5G interface 20 is a communication interface of a wireless communication system applied to a 5 th generation mobile communication system used in a smartphone or the like, and is capable of communicating with a communication network such as the internet via a base station (MN (Master Node) or SN (Secondary Node)).

The sound I/F21 inputs sound data and the like collected by the microphone 22, plays the sound data and the like, and outputs the sound data and the like from the speaker 23. For example, the speech function is realized by transmitting speech data input from the microphone 22 via the 5G interface 20, playing speech data received via the 5G interface 20, and the like, and outputting the data via the speaker 23.

The human body detection sensor 18 detects whether or not a human is present in the room. The controller 13 supplies the dc voltage from the secondary battery system 15 to the human body detection sensor 18 at the time of power failure, and causes the human body detection sensor 18 to detect whether or not a person is present in the room.

The local connection point 41 corresponds to the wireless LAN router 2 and the like described above, and is capable of communicating with various systems 42 connected to a communication network such as the internet.

Fig. 7 is a diagram illustrating an example of the operation of the lighting device 1' at the time of power failure. The controller 13 determines that the power failure state is present when the wireless communication unit 12 fails to receive the radio wave from the wireless LAN router 2. Since the AC power supply unit 14 cannot receive the supply of the AC power, the controller 13 controls the secondary battery system 15 to supply power to the illuminance sensor 17, and causes the illuminance sensor 17 to acquire illuminance data in the room.

When the illuminance data acquired by the illuminance sensor 17 is equal to or higher than a predetermined value, that is, when the room is bright, the controller 13 turns off the LED light emitting unit 11, supplies power from the secondary battery system 15 to the communication unit 19, and causes the communication unit 19 to perform communication monitoring (whether or not the radio wave from the wireless LAN router 2 can be received).

Further, when the illuminance data acquired by the illuminance sensor 17 is equal to or less than a predetermined value, that is, when the room is dark, the controller 13 checks the remaining battery level of the secondary battery system 15, and when the remaining battery level is large, the LED light emitting unit 11 is turned on (strongly) and the communication unit 19 performs communication monitoring.

Further, the controller 13 checks the remaining battery level of the secondary battery system (15), and when the remaining battery level is low, the LED light emitting unit 11 is turned on darkly (weakly) or blinks, and the communication unit 19 monitors the communication.

Fig. 8 is a diagram showing another example of the operation of the lighting device 1' at the time of power failure. The controller 13 determines that the power failure state is present when the wireless communication unit 12 fails to receive the radio wave from the wireless LAN router 2. Since the AC power supply unit 14 cannot receive the supply of the AC power, the controller 13 controls the secondary battery system 15 to supply power to the illuminance sensor 17, and causes the illuminance sensor 17 to acquire illuminance data in the room.

When the illuminance data acquired by the illuminance sensor 17 is equal to or higher than a predetermined value, that is, when the room is bright, the controller 13 turns off the LED light emitting unit 1, supplies power from the secondary battery system 15 to the communication unit 19, and causes the communication unit 19 to monitor communication.

Further, if the illuminance data acquired by the illuminance sensor 17 is equal to or less than a predetermined value, that is, if the room is dark, the controller 13 controls the secondary battery system 15 to supply power to the human body detection sensor 18, and causes the human body detection sensor 18 to detect whether or not a person is present in the room. If no person is present in the room, the controller 13 turns off the light of the LED light emitting unit 11, supplies power from the secondary battery system 15 to the communication unit 19, and causes the communication unit 19 to perform communication monitoring.

Further, if there is a person in the room, the controller 13 controls the LED light emitting unit 11 to turn on the LED light emitting unit in a dark state (weak state) and also causes the communication unit 19 to monitor communication.

Fig. 9 is a diagram showing still another example of the operation of the lighting device 1' at the time of power failure. In the same manner as the operation shown in fig. 8, when there is a dark person in the room during a power failure, the controller 13 controls the LED light emitting unit 11 to turn on the dark person (weak person). Then, the controller 13 causes the communication unit 19 to perform communication monitoring, and automatically contacts the specified contact person via 220, for example. The designated contact is pre-registered.

< Process flow for illumination System 100 >

Fig. 10 is a flowchart for explaining the processing procedure of the lighting system according to the second embodiment of the present invention. The processing procedure shown in fig. 10 represents processing in the case where the operation mode is determined to be the power failure mode in step S1 of the processing procedure shown in fig. 5.

The power failure modes include five power failure modes, i.e., a power failure mode a, a power failure mode B, a fully-on mode, a light-OFF mode, and an OFF mode. The power failure mode a is a mode in which the human body detection sensor 18 detects the presence of a human in a room during the power failure mode. The power failure mode B is a mode in which the human body detection sensor 18 detects that no human is present in the room during the power failure mode. The full-on mode is a mode in which the LED light emitting unit 11 is fully turned on at the time of power failure. The light-off mode is a mode in which the LED light emitting unit 11 is turned off when the fixed mode light-off button 31 is operated during a power failure. The OFF mode is a mode for turning OFF the LED light emitting unit 11 when the light-OFF button 34 in the automatic mode is operated during a power failure.

First, the controller 13 determines whether or not AC power is supplied to the AC power supply unit 14 (S11). When the AC power is supplied (Yes at S11), the controller 13 sets the operation mode in the state recovered from the power failure to the normal mode (S12), returns to step S1 in fig. 5, and repeats the subsequent processing.

Further, if the AC power is not supplied to the AC power supply unit 14(S11, No), the controller 13 determines whether the operation mode is the power failure mode a (S13). Here, the power failure mode a is a mode in which a certain level of brightness is ensured when a person is present in the room.

When the power failure mode a is set (Yes at S13), the controller 13 determines the lighting intensity based on the lighting time, the remaining battery level, and the ambient brightness, and controls the LED light emitting unit 11 so that the brightness is obtained (S20).

For example, the controller 13 starts a timer, lights up in the final state set on the remote controller 3 for the first 5 minutes, and then turns off the light if the surroundings are bright. If the surroundings are dark and the remaining battery level is 50% or more, the controller 13 turns on the LED light emitting unit 11 at 70% of the maximum brightness or at the darker brightness set by the remote controller 3 until the timer reaches 1 hour. After 1 hour, the LED light emitting unit 11 is turned on at 40% of the maximum brightness or at a darker one of the brightnesses set in the remote controller 3.

If the surroundings are dark and the remaining battery level is 50% insufficient, the controller 13 turns on the LED light emitting unit 11 at 50% of the maximum brightness or at the darker brightness set by the remote controller 3 until the timer reaches 1 hour. After 1 hour, the LED light emitting unit 11 is turned on at 20% of the maximum brightness or at a darker one of the brightnesses set in the remote controller 3.

If the power failure mode a is not set (No at S13), the controller 13 determines whether the power failure mode B is set (S14). Here, the power failure mode B is a mode in which the LED light emitting unit 11 is controlled at a luminance darker than that in the power failure mode a when no person is present in the room.

When the power failure mode B is set (Yes at S14), the controller 13 determines the lighting intensity based on the lighting time, the remaining battery level, or the ambient brightness, and controls the LED light emitting unit 11 to have the determined lighting intensity (S21).

For example, the controller 13 starts a timer, lights up in the final state set on the remote controller 3 for the first 5 minutes, and then turns off the light if the surroundings are bright. If the surroundings are dark and the remaining battery level is 50% or more, the controller 13 turns on the LED light emitting unit 11 at 50% of the maximum brightness or at the darker brightness set by the remote controller 3 until the timer reaches 10 minutes. After the timer has elapsed 10 minutes, the LED light emitting unit 11 is turned on at 10% of the maximum brightness or at the darker one of the brightnesses set in the remote controller 3.

If the surroundings are dark and the remaining battery level is not sufficient at 50%, the controller 13 turns on the LED light emitting unit 11 at 15% of the maximum brightness or at the darker brightness set by the remote controller 3 until the timer reaches 10 minutes. After the timer has elapsed 10 minutes, the LED light emitting unit 11 is turned on at 1% of the maximum brightness or at the darker one of the brightnesses set in the remote controller 3.

When the power failure mode B is not set (S14, No), the controller 13 determines whether or not the full open mode is set (S15). If the full-on mode is not set (S15, No), the controller 13 determines whether the light-off mode is set (S16).

If the light-off mode is not set (No at S16), the controller 13 refers to the operation information of the remote controller 3 and determines whether or not there is any operation of the lighting operation (operation of the full-on button 32 and the automatic mode buttons 33 to 38) (S17). If there is No operation of some lighting action (S17, No), it returns to step S1 of fig. 5 and repeats the subsequent processing.

Further, if there is an operation of the auto mode (operation of the buttons 33 to 38) (S17, Yes (auto)), the process proceeds to step S32. Further, if there is a full-on operation (operation of the full-on button 32) (S17, Yes (full light)), the process proceeds to step S23.

When the fully-open mode is set (S15, Yes) or when the light-off mode is set (S16, Yes), the controller 13 refers to the operation information of the remote controller 3 to determine whether or not there is any operation in the fixed mode (operation of the light-off button 31, the fully-open button 32) (S18). If there is a light-off operation in the fixed mode (S18, Yes (fixed light-off)), the process proceeds to step S26. Further, in the case where there is a full-on operation in the fixed mode (S18, Yes (fixed full light)), the process proceeds to step S23.

Further, if there is No operation in the certain fixed mode (No at S18), the controller 13 refers to the operation information of the remote controller 3 and determines whether there is an operation in the lighting operation in the certain automatic mode (operation of the buttons 35 to 38) (S19). If there is No operation of some lighting actions of the auto mode (S19, No), it returns to step S1 of FIG. 5 and repeats the subsequent processing.

Further, if there is an operation of the light-off operation in the automatic mode (operation of the light-off button 34) (S19, Yes (automatic light-off)), the process proceeds to step S29. Further, if there is another operation of the auto mode (S19, Yes (other auto operation)), the process proceeds to step S32.

In step S22, the controller 13 refers to the operation information of the remote controller 3 and determines whether or not there is an operation of the full light operation in the fixed mode. If there is an operation of all the lamp operations in the fixed mode (Yes at S22), the controller 13 controls the LED light emitting unit 11 to be fully opened (S23), changes the operation mode to the fully opened mode (S24), returns to step S1 in fig. 5, and repeats the subsequent processing. Therefore, if necessary, the LED light emitting unit 11 can be lit at the maximum luminance even in a short time.

If there is No operation of the full-on operation in the fixed mode (No at S22), the controller 13 refers to the operation information of the remote controller 3 and determines whether or not there is a lighting-off operation in the fixed mode (operation of the lighting-off button 31) (S25). If the lighting-off operation in the fixed mode is present (Yes at S25), the controller 13 controls the LED light emitting unit 11 to turn off the light (S26), changes the operation mode to the lighting-off mode (S27), returns to step S1 of fig. 5, and repeats the subsequent processing. Therefore, the LED light emitting unit 11 can be turned off when not needed by the user.

If there is No lighting-off operation in the fixed mode (No at S25), the controller 13 refers to the operation information of the remote controller 3 and determines whether or not there is a lighting-off operation in the automatic mode (operation of the lighting-off button 34) (S28). If the lighting-OFF operation in the automatic mode is present (Yes at S28), the controller 13 controls the LED light emitting unit 11 to turn OFF the light (S29), changes the operation mode to the OFF mode (S30), returns to step S1 in fig. 5, and repeats the subsequent processing. The OFF mode is a mode in which the lamp is turned OFF during a power outage.

The light-off mode is a normal light-off mode, and the LED light-emitting unit 11 is turned on when AC supply is returned from a power failure. On the other hand, the OFF mode is a light-OFF in the automatic mode, and the LED light emitting unit 11 remains OFF even when AC supply is resumed from a power failure.

If there is No light-off operation in the automatic mode (No at S28), the controller 13 refers to the operation information of the remote controller 3 and determines whether there is any other operation (operation of the buttons 35 to 38) (S31). If there is some other operation (Yes at S31), the controller 13 causes the LED light emitting unit 11 to emit light in a lighted state operated as much as possible by the remote controller 3 (S32). By this processing, the brightness of the LED light emitting unit 11 can be changed by the remote controller 3 even in the event of a power failure.

If there is a light-off operation in the automatic mode (Yes at S28), the controller 13 clears and starts the timer, and controls the human body detection sensor 18 to detect whether there is a human body within only 5 minutes (S34). If No one is present (No at S34), the controller 13 changes the operation mode to the power failure mode B (S35), returns to step S1 in fig. 5, and repeats the subsequent processing. If there is a person (Yes at S34), the controller 13 changes the operation mode to the power failure mode a (S36), returns to step S1 in fig. 5, and repeats the subsequent processing.

As described above, according to the illumination system 100' of the present embodiment, the controller 13 controls the LED light emitting unit 11 to brightly light up when the room is dark and the remaining battery level is large at the time of power failure. When the room is dark and the remaining battery power is low during a power failure, the controller 13 controls the LED light emitting unit 11 to light up darkly. Therefore, when the battery remaining amount of the secondary battery system 15 is small, the power consumption can be reduced.

In addition, when there is no person in the dark room during the power failure, the controller 13 controls the LED light emitting unit 11 to turn off the light. Therefore, the LED light emitting unit 11 can be turned off when no one is present, and power consumption can be reduced.

In addition, when there is a dark person in the room during a power outage, the controller 13 controls the LED light emitting unit 11 to light up in a dark state. Therefore, in the case of a person, the LED light emitting unit 11 can be lit up darkly, and power consumption can be reduced. In the case of the configuration of the illumination device 1 without the human body detection sensor as shown in fig. 1, the processing steps of the illumination system shown in fig. 10 are processing steps in which the difference between the power failure mode a and the power failure mode B is appropriately omitted.

[ implementation by software ]

The control module (particularly, the controller 13) of the lighting devices 1 and 1' may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or may be realized by software.

In the latter case, the controller 13 includes a computer for realizing software for each function, that is, commands for executing a program. The computer includes, for example, at least one processor (control device) and at least one computer-readable storage medium for storing the program. In the computer, the processor reads the program from the storage medium and executes the program, thereby achieving an object of the present invention. As the processor, for example, a cpu (central Processing unit) can be used. As the recording medium, a "non-transitory tangible medium" such as a rom (read Only memory) or the like, or a magnetic tape, a magnetic disk, a card, a semiconductor memory, a programmable logic circuit, or the like may be used. Further, a ram (random Access memory) or the like may be provided to expand the program. Further, the above-described program may be supplied to the computer via an arbitrary transmission medium (a communication network, a broadcast wave, or the like) capable of transmitting the program. An aspect of the present invention can also be implemented in the form of a data signal embedded in a carrier wave, the program being embodied by electronic transmission.

< summary >

The lighting device according to embodiment 1of the present invention includes a light emitting unit; a power failure detection unit that detects a power failure based on the presence or absence of a radio wave from an external device; and a control unit configured to control the light emitting unit to be turned on when the power failure detection unit detects a power failure.

According to the above configuration, the power failure detection unit detects a power failure based on the presence or absence of a radio wave from an external device, and therefore, can detect a power failure without performing any special construction, and can be used as an emergency light.

In the lighting device according to aspect 2 of the present invention, in aspect 1, the control unit determines that power is off when the power outage detection unit cannot receive the identification information of the external device from the external device.

With the above configuration, it is possible to determine whether or not the radio wave is from an external device installed at home, and it is possible to more accurately determine whether or not the power failure has occurred.

The lighting device according to aspect 3 of the present invention is the lighting device according to

aspect

1 or 2, further including a power supply unit configured to generate a dc voltage from the ac voltage; and a secondary battery system configured to supply a dc voltage when the dc voltage is not supplied from the power supply unit, wherein the control unit supplies the dc voltage from the secondary battery system to the light emitting unit and lights the light emitting unit when the supply of the dc voltage from the power supply unit is stopped and the power failure is detected by the power failure detection unit.

According to the above configuration, the control unit supplies the dc voltage from the secondary battery system to the light emitting unit and lights the light emitting unit when the power failure is detected by the power failure detection unit, and thus the control unit can be used as an emergency light during power failure.

The lighting device according to aspect 4 of the present invention is the lighting device according to aspect 3, further comprising an illuminance sensor that detects illuminance at a location where the lighting device is installed, wherein the control unit controls the luminance of the light emitting unit based on illuminance data from the illuminance sensor.

According to the above configuration, the control unit controls the luminance of the light emitting unit based on the illuminance data from the illuminance sensor, and therefore, the luminance of the light emitting unit can be adjusted according to the luminance of a room or the like in which the lighting device is installed.

In the lighting device according to aspect 5 of the present invention, in aspect 4, the control unit turns off the light emitting unit when illuminance data from the illuminance sensor is equal to or greater than a first predetermined value.

According to the above configuration, if the brightness of the room or the like in which the lighting device is installed is equal to or greater than the first predetermined value, that is, bright, the light emitting section is turned off, and therefore, the consumption of the power supplied from the secondary battery system can be suppressed.

In the lighting device according to aspect 6 of the present invention, in aspect 5, the control unit may cause the light emitting unit to be lit at a first luminance when the remaining battery capacity of the secondary battery system is greater than a second predetermined value, and cause the light emitting unit to be lit at a second luminance darker than the first luminance when the remaining battery capacity of the secondary battery system is less than or equal to the second predetermined value, when the illuminance data from the illuminance sensor is less than the first predetermined value.

According to the above configuration, if the remaining battery capacity of the secondary battery system is small, the control unit causes the light emitting unit to light at the second luminance darker than the first luminance, so that the power consumption of the secondary battery system can be reduced.

The lighting device according to aspect 7 of the present invention is the lighting device according to aspect 4, further comprising a human body detection sensor for detecting whether or not a human body is present; the control unit turns on the light emitting unit if the human body detection sensor detects a human body when the illuminance data from the illuminance sensor is less than a first predetermined value.

According to the above configuration, a certain degree of brightness can be ensured in a dark situation such as a room where a person is present at the time of power failure.

In the lighting device according to aspect 8 of the present invention, in aspect 7, the control unit turns off the light emitting unit if the human body detection sensor detects that no human body is present, when the illuminance data from the illuminance sensor is less than a first predetermined value.

According to the above configuration, when no person is present in a room or the like at the time of a power failure, the power consumption of the secondary battery system can be reduced.

An illumination system according to embodiment 9 of the present invention includes an illumination device and an external device, the illumination device including a light emitting section; a power failure detection unit that detects a power failure based on the presence or absence of a radio wave from an external device; and a control unit configured to control the light emitting unit to be turned on when the power failure detection unit detects a power failure.

An illumination method according to aspect 10 of the present invention includes a detection step of detecting a power failure based on presence or absence of a radio wave from an external device; and a control step of controlling the illumination to be turned on when the power failure is detected.

According to the above configuration, since the power failure is detected based on the presence or absence of a radio wave from an external device, the power failure can be detected without performing any special construction, and the emergency lamp can be used.

A power outage detection device according to embodiment 11 of the present invention includes a power outage detection unit that detects a power outage based on the presence or absence of a radio wave from an external device.

According to the above configuration, since the power failure is detected based on the presence or absence of a radio wave from an external device, the power failure can be detected without performing any special construction.

The lighting apparatuses 1 and 1 ' according to the aspects of the present invention may be realized by a computer, and in this case, a controller, a control program, and a computer-readable storage medium storing the program, which are configured to realize the lighting apparatuses 1 and 1 ' by a computer by operating a computer as each part (software element) included in the lighting apparatuses 1 and 1 ', are included in the scope of the present invention.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments are also included in the technical scope of the present invention. Further, new technical features can be formed by combining the technical methods disclosed in the respective embodiments.

Claims

1. An illumination device, comprising,

a light emitting section;

a power failure detection unit that detects a power failure based on the presence or absence of a radio wave from an external device;

and a control unit configured to control the light emitting unit to be turned on when the power failure detection unit detects a power failure.

2. The illumination device of claim 1,

the control unit determines that power is off when the power outage detection unit cannot receive identification information of the external device from the external device.

3. The lighting device according to claim 1 or 2, further comprising a power supply section generating a direct-current voltage from an alternating-current voltage;

a secondary battery system for supplying a DC voltage when the DC voltage is not supplied from the power supply unit,

the control unit supplies the direct-current voltage from the secondary battery system to the light emitting unit and lights the light emitting unit when the supply of the direct-current voltage from the power supply unit is stopped and the power failure is detected by the power failure detection unit.

4. The lighting device according to claim 3, further comprising an illuminance sensor that detects illuminance of a place where the lighting device is provided,

the control unit controls the luminance of the light emitting unit based on illuminance data from the illuminance sensor.

5. The illumination device according to claim 4, wherein the control unit turns off the light emitting unit when the illuminance data from the illuminance sensor is equal to or greater than a first predetermined value.

6. The lighting device according to claim 5, wherein the control unit causes the light emitting unit to light at a first luminance when the remaining battery level of the secondary battery system is greater than a second predetermined level and causes the light emitting unit to light at a second luminance darker than the first luminance when the remaining battery level of the secondary battery system is less than the second predetermined level, when the illuminance data from the illuminance sensor is less than the first predetermined level.

7. The illumination device according to claim 4, further comprising a human body detection sensor for detecting whether a human body is present,

the control unit turns on the light emitting unit if the human body detection sensor detects a human body when the illuminance data from the illuminance sensor is smaller than a first predetermined value.

8. The illumination device according to claim 7, wherein the control unit turns off the light emitting unit if the human body detection sensor detects that no human being is present, when the illuminance data from the illuminance sensor is smaller than a first predetermined value.

9. An illumination system, comprising,

a lighting device and an external device, wherein the lighting device is a lamp,

the lighting device includes:

a light emitting section;

a power failure detection unit that detects a power failure based on the presence or absence of a radio wave from the external device;

10. A method of lighting, comprising:

a detection step of detecting a power failure based on the presence or absence of a radio wave from an external device;

and a control step of controlling the illumination to be turned on when the power failure is detected.

11. A power failure detection device is characterized by comprising a power failure detection unit for detecting power failure according to the presence of radio waves from external equipment.