JP2019179773A - Lighting device - Google Patents

Abstract

To provide a lighting device capable of supervision and information notification using a radio signal, with a secured lighting time of a light source when an external power supply is cut off.SOLUTION: A lighting device 11 includes a light source 16, a battery 17 and a power supply 20. The power supply 20 includes a charging circuit 31, an emergency lighting circuit 32 and a radio signal transmission unit 36. The charging circuit 31 charges the battery 17 from an external power supply 18. The emergency lighting circuit 32 lights the light source 16 using the battery 17 as a power supply when the external power supply 18 is cut off. The radio signal transmission unit 36 periodically transmits a radio signal using power supplied from the external power supply 18. When the external power supply 18 is not cut off, the power supply 20 uses the external power supply 18 as a power supply, whereas when the external power supply 18 is cut off, uses the battery 17 as a power supply and also stops the operation of the radio signal transmission unit 36.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a lighting device that turns on a light source using a battery as a power source when an external power source is shut off.

  Conventionally, as an illumination device incorporating a battery, for example, an emergency illumination device, an emergency light, a guide light, or the like is known. As such an illuminating device, there exists a structure provided with the radio | wireless signal transmission part which transmits alerting | reporting information with respect to an external device triggered by reception of a request signal from an external device such as a remote controller, for example.

  In recent years, a beacon transmission unit that periodically transmits a beacon (BLE signal) that is a radio signal within a predetermined distance range every predetermined time, and an application (application) corresponding to the beacon transmitted from this beacon transmission unit has been developed. There is a system that performs notification and display by an application when a mobile terminal such as an installed smartphone receives a beacon. By applying such a system to the wireless signal transmission unit of the above lighting device, an operation such as inputting a request signal if the owner of the mobile terminal approaching within a predetermined distance range is operating the application. It is conceivable that information can be easily notified without performing the operation.

JP2013-258024A

  However, since the above-described beacon transmission unit periodically sends out a beacon every short time, the battery is consumed when the beacon transmission unit is valid when the power source is switched to the battery at the time of a power failure. Therefore, it is desired that the lighting time of the light source at the time of emergency lighting is not shortened due to power consumption in the beacon transmission unit.

  The problem to be solved by the present invention is to provide an illuminating device capable of monitoring using radio signals and reporting information, and ensuring the lighting time of a light source when an external power source is shut off.

  The lighting device of the embodiment includes a light source, a battery, and a power supply device. The power supply device includes a charging circuit, a lighting circuit, and a wireless signal transmission unit. The charging circuit charges the battery. The lighting circuit turns on the light source. The wireless signal transmission unit periodically transmits a wireless signal. And the power supply device uses the external power supply as the power supply for the charging circuit and the wireless signal sending section when the external power supply is not shut off, the external power supply as the power supply for the wireless signal sending section at the time of inspection, and the battery lighting circuit when the external power supply fails And the operation of the wireless signal transmission unit is stopped.

   According to the present invention, when the external power supply is not shut off, the external power supply is used as the power supply for the charging circuit and the wireless signal sending unit of the power supply device, and at the time of inspection, the external power supply is used as the power supply for the wireless signal sending unit of the power supply device. It is possible to monitor a lighting device using a radio signal and report information using a terminal that periodically sends a radio signal and receives the radio signal, and powers the battery when an external power supply fails. Since the operation of the wireless signal sending unit is stopped while the power source of the lighting circuit is turned on, it is expected that the lighting time of the light source is secured by preventing the consumption of the battery by the wireless signal sending unit at the time of power failure of the external power supply.

It is a circuit diagram which shows the illuminating device of one Embodiment. It is a flowchart which shows operation | movement of the control means of an illuminating device same as the above.

  The configuration of one embodiment will be described below with reference to FIGS. 1 and 2.

  In FIG. 1, an illumination device 11 is an emergency light that is turned on in an emergency such as a power failure, and is installed above a corridor or a passage.

  The lighting device 11 includes a light source 16, a battery 17, a terminal block 19 connected to an external power source 18, a power source device that turns on the light source 16, charges the battery 17, and periodically transmits a radio signal. 20 and is housed in a housing (not shown).

  The lighting device 11 can be applied to all indoor or outdoor lighting devices that use the battery 17 as a power source, such as a guide light equipped with a regular lighting circuit. Moreover, it is not limited to the ceiling-embedded type, but may be installed by other installation means such as a direct mounting type or a ceiling type.

  As the light source 16, for example, a semiconductor light emitting element such as a light emitting diode (LED) or a laser diode, or an organic EL element (OLED) is used, and is configured to emit white light, for example.

  The battery 17 is a rechargeable secondary battery such as a nickel cadmium battery, a nickel metal hydride battery, or a lithium ion battery.

  The external power source 18 can be an arbitrary power source such as a commercial AC power source or a DC power source. In the present embodiment, for example, the external power source 18 is a commercial AC power source.

  The terminal block 19 electrically connects the external power supply 18 and the power supply device 20 via an electric wire (not shown).

  In the power supply device 20, a rectifier circuit 23 is connected to the external power supply 18, and a power monitoring circuit 24 that monitors the supply of the external power supply 18 and a smoothing element such as an electrolytic capacitor are provided on the output side of the rectifier circuit 23. 25 and a series circuit (step-down circuit) of a primary side of the transformer Tr and a power circuit 26 using, for example, IPD as a power device are sequentially connected.

  Further, on the secondary side of the transformer Tr, a charging circuit 31 such as a constant current circuit that charges the battery 17 by the external power source 18 via a rectifying and smoothing circuit of a rectifying element 28 such as a diode and a smoothing element 29 such as an electrolytic capacitor. An emergency lighting circuit 32 is sequentially connected as a lighting circuit for lighting the light source 16 using the battery 17 as a power source when the battery 17 and the external power source 18 are shut off. A light source 16 is connected to the emergency lighting circuit 32. A control means 34 is connected to the output side of the rectifying / smoothing circuit and the output side of the battery 17 via diodes D1 and D2, respectively, and a radio signal sending unit 36 is provided in parallel with the control means 34. They are connected via a cutoff circuit 37.

  The control means 34 is, for example, a microcomputer, and the power supply monitoring circuit 24, the charging circuit 31, the emergency lighting circuit 32, and the cutoff circuit 37 are connected to the control means 34, for example. The control unit 34 charges the battery 17 by the charging circuit 31 when the external power supply 18 is supplied based on the monitoring state by the power supply monitoring circuit 24. Further, when the external power source 18 is shut off, for example, at the time of inspection or during a power failure, the control unit 34 uses the battery 17 as a power source to turn the light source 16 on for a predetermined time (for example, 30 for an emergency light). Min., 20 minutes or 60 minutes for guide lights).

  The wireless signal transmission unit 36 is also called a beacon module or the like. When the external power source 18 is supplied, the radio signal transmission unit 36 is always supplied to the region within a predetermined distance range by power supply from the external power source 18 every predetermined time (for example, 100 to several hundred milliseconds). The wireless signal (beacon) is continuously sent out, and when the external power source 18 is shut off, the power supply is shut off by the shut-off circuit 37, and the operation is stopped and becomes invalid. The wireless signal output from the wireless signal transmission unit 36 is, for example, a BLE (Bluetooth (registered trademark) Low Energy) signal including identification information such as identification ID (UUID) and information indicating distance information from the portable terminal. The wireless signal is received by a wireless signal receiving unit normally provided in a mobile terminal such as a smartphone or a tablet PC, so that the identification information included in the wireless signal is installed in the mobile terminal in advance. The corresponding application (application) inquires the server of the external storage device for this identification information, and, for example, according to the response from the server, the charging state of the battery 17, the installation date of the lighting device 11, the location information of the mobile terminal, that is, the mobile phone Various information on the lighting device 11, such as the location information of the terminal owner and the emergency evacuation route from this location And it is configured so that the application performs a predetermined display or notification. As the wireless signal sending unit 36, a system such as iBeacon (registered trademark) using BLE communication technology is preferably used together with the wireless signal receiving unit of each portable terminal. For example, information on the operating current of the wireless signal transmission unit 36 is fed back to the control of the power supply circuit 26.

  The cutoff circuit 37 is located in the power supply path from the battery 17 to the wireless signal transmission unit 36, and functions as a switch for opening and closing the power supply path. The shut-off circuit 37 may electrically shut off the power supply from the battery 17 to the radio signal sending unit 36 or may be mechanically shut off.

  When the external power supply 18 is supplied (always), the power supply device 20 charges the battery 17 with the external power supply 18 and periodically transmits a radio signal from the radio signal transmission unit 36. In the present embodiment, the battery 17 is used as a power source, and the light source 16 is turned on while the operation of the wireless signal transmission unit 36 is stopped.

  Next, the operation of the illumination device 11 will be described.

During normal use when power is supplied from the external power supply 18, the battery 17 is charged by the charging circuit 31, and a wireless signal is periodically transmitted from the wireless signal transmission unit 36 at predetermined time intervals. Therefore, when the holder of the portable terminal installed with the application corresponding to the identification information included in the wireless signal from the wireless signal sending unit 36 is located in the vicinity of the lighting device 11, the wireless signal from the wireless signal sending unit 36 The application operated by the identification information included in the message displays or notifies the information provided from the server.

  On the other hand, in an emergency (when a power failure occurs) when the external power supply 18 is cut off, the power monitoring circuit 24 detects the stop of the power supply of the external power supply 18, and the control means 34 turns on the light source 16 by the power supply from the battery 17. Thus, the operation of the emergency lighting circuit 32 is controlled and the power supply path to the wireless signal transmission unit 36 is opened by the cutoff circuit 37 to stop the operation of the wireless signal transmission unit 36. The lighting of the light source 16 is started based on the power supply by.

  When the operation of the control means 34 is summarized in the flowchart of FIG. 2, the control means 34 determines whether or not there is power supply from the external power supply 18 by the power supply monitoring circuit 24 (step 1). When it is determined that there is power supply (no power failure), the battery 17 is charged by the external power source 18 by the charging circuit 31 (step 2), and the wireless signal transmission unit 36 is operated by the external power source 18 (step 3). Return to step 1. If the control means 34 determines in step 1 that there is no power supply from the external power supply 18 (power failure), the operation of the emergency lighting circuit 32 so that the light source 16 is turned on by power supply from the battery 17. (Step 4), and the power supply to the wireless signal transmission unit 36 is interrupted by the interruption circuit 37 (step 5), and the process returns to step 1.

  As described above, the wireless signal transmission unit 36 that periodically transmits a wireless signal by power supply from the external power supply 18 is used to monitor the lighting device 11 using the wireless signal using a terminal that receives the wireless signal. In addition, the external power supply 18 is used as the power supply 20 power supply when the external power supply 18 is not shut off, and the battery 17 is used as the power supply 20 power supply during a power failure when the external power supply 18 is shut off. Since the operation of the signal transmission unit 36 is stopped, the consumption of the battery 17 by the wireless signal transmission unit 36 when the external power source 18 is shut off can be prevented, and the lighting time of the light source 16 can be secured. Therefore, the battery 17 only needs to have a minimum capacity for turning on the light source 16 for a predetermined time or more, and the battery 17 can be downsized.

  That is, since the wireless signal transmission unit 36 periodically transmits wireless signals, the power consumption of the battery 17 is large. Therefore, by disabling the wireless signal transmission unit 36 at the time of emergency lighting, unnecessary consumption of the battery 17 is suppressed, and the lighting time of the light source 16 can be secured without increasing the capacity of the battery 17 more than necessary.

  In addition, by providing a shut-off circuit 37 that can shut off the power supply path from the battery 17 to the wireless signal sending unit 36 when the external power supply 18 is shut off, the shut-off circuit 37 is operated at the time of inspection for checking the charge state of the battery 17, for example. The power supply from the battery 17 to the wireless signal transmission unit 36 can be performed without causing the operation to be performed, and the operation of the wireless signal transmission unit 36 can be checked. By cutting off the power supply, it is possible to prevent the consumption of the battery 17 by the wireless signal transmission unit 36 during a power failure.

  In the above-described embodiment, for example, when power supply from the battery 17 to the wireless signal transmission unit 36 is not required at the time of inspection, the wireless signal transmission unit is not provided with a power supply path from the battery 17 to the wireless signal transmission unit 36. It is also possible to operate 36 using only power from the external power source 18.

  The shut-off circuit 37 is not only configured to be opened and closed by the control means 34, but also automatically opened and closed by shutting off the external power supply 18, such as a relay that is turned on by energizing the external power supply 18 and turned off by shutting off the external power supply 18. It can also be set as the structure made.

Furthermore, the wireless signal transmission unit 36 may include a wireless signal receiving unit, for example, and may be capable of wireless communication in both directions.

  In addition to the emergency lighting circuit 32, a constant lighting circuit for lighting the light source 16 when the external power source 18 is supplied may be provided.

  Although one embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

11 Lighting equipment
16 Light source
17 battery
18 External power supply
20 Power supply
31 Charging circuit
32 Emergency lighting circuit as lighting circuit
36 Wireless signal transmitter
37 Cutoff circuit

Claims (2)

With a light source;
With a battery;
A charging circuit for charging the battery;
A lighting circuit for lighting the light source;
A wireless signal transmission unit for periodically transmitting a wireless signal, and when the external power source is not shut off, the external power source is used as the power source for the charging circuit and the wireless signal transmission unit, and the external power source is connected to the wireless signal transmission unit during inspection. A power supply device that is a power source and that uses the battery as a power source for the lighting circuit and stops the operation of the wireless signal transmission unit in the event of a power failure of an external power source;
An illumination device comprising: The lighting device according to claim 1, wherein the power supply device includes a shut-off circuit capable of shutting off a power supply path from the battery to the wireless signal transmission unit when a power failure occurs in the external power supply.

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