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Power failure detection method, power failure detector, lighting device, and power supply device

A technology of power failure detection and detector, which is applied in the direction of measuring device, circuit device, power supply test, etc., and can solve the problems of undetectable, situation grasp and delay of initial action

Inactive Publication Date: 2015-07-29
ADVANCE CREATE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, it is impossible to detect a power outage when the power switch is turned on, that is, a power outage when the lighting device with the emergency light function is not lit, so power outages occur especially in the middle of the night and when going to bed before dawn, due to disasters such as earthquakes problems with short-term situational awareness and delays in initial action

Method used

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  • Power failure detection method, power failure detector, lighting device, and power supply device
  • Power failure detection method, power failure detector, lighting device, and power supply device
  • Power failure detection method, power failure detector, lighting device, and power supply device

Examples

Experimental program
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Effect test

Embodiment 1

[0043] [Principle and method of blackout detection]

[0044]figure 1 It is a block diagram of the state where the blackout detector is connected to the indoor wiring.

[0045] Such as figure 1 As shown, typical household wiring is performed via a pole-mounted transformer 1 to wire high voltage. Electricity is provided by transforming the high voltage of the electric wire to 100V by the pole-mounted transformer 1 . For safety, the wiring 3 on one side of the pole-mounted transformer 1 is grounded. Take it as the ground side N. Let the other wiring 5 be the non-ground side L. FIG.

[0046] Wiring 3, 5 from pole transformer 1 is connected through main circuit breaker 9, individual circuit breakers 11a, 11b, . To the socket 13, for example, an electric device 17 is connected.

[0047] A wall switch 19 as a power switch for lighting is provided on the non-ground side L of the power failure detector 15 .

[0048] During normal use, AC100V is provided from the column transform...

Embodiment 2

[0102] Figure 11 It is a block diagram of the lighting device of Example 2.

[0103] Figure 11 The lighting device is the LED lighting fixture 37 using the blackout detector of the first embodiment.

[0104] The LED lighting fixture 37 includes a high-sensitivity amplifier 39 and an integrating circuit 41 as a structure corresponding to the blackout detector 15 of the first embodiment. The high-sensitivity amplifier 39 corresponds to the line-to-line voltage amplifying circuit 25 and the ground-side voltage amplifying circuit 27, and the integrating circuit 41 corresponds to the electronic control circuit 29 constituted by a CPU or the like, and functions in the same manner. Therefore, the integration circuit 41 is configured to include a reference voltage storage unit, a monitor voltage detection unit, and a power failure determination unit.

[0105] The LED lighting fixture 37 also includes an input connection unit 43 , a lithium ion battery 45 as a storage battery, a b...

Embodiment 3

[0123] Figure 12 It is a block diagram of the power supply device of the third embodiment. In addition, the basic structure is the same as that of the LED lighting fixture 37 of Example 2, and the same code|symbol is attached|subjected to the same structure part, and repeated description is abbreviate|omitted.

[0124] Figure 12 The power supply unit 55 also uses the power outage detector of Embodiment 1.

[0125] The power supply device 55 is the same as the LED lighting fixture 37 of the second embodiment, and includes a high-sensitivity amplifier 39 and an integrating circuit 41 as a configuration corresponding to the power outage detector 15 of the first embodiment.

[0126] The power supply unit 55 also includes an input connection unit 43, a lithium ion battery 45 as a storage battery, a switching control circuit 49 as a power supply switching unit, an AC-DC regulator 50, and a battery charge controller 51, and functions similarly.

[0127] On the other hand, the po...

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Abstract

Provided are a power failure detection method, a power failure detector, a lighting device, and a power supply device which enable power failure detection regardless of the state of a power supply switch without requiring interior wiring work. The present invention is characterized by being provided with: a reference voltage storage unit (29) which, in the OFF state of a power supply switch during non-power failure, detects at least one of weak voltages generated by inter-wire capacity induction and inter-wire electromagnetic induction between a wire on the grounding side (N) of interior wiring and a wire on the non-grounding side (L) in which a wall switch is provided, and stores the detected voltage as a reference voltage state; a monitored voltage detection unit (29) which monitors said at least one of the weak voltages generated by the inter-wire capacity induction and the inter-wire electromagnetic induction and detects the monitored voltage as a monitored voltage state; and a power failure determination unit (29) which determines power failure by comparing the reference voltage state and the monitored voltage state.

Description

technical field [0001] The present invention relates to a power outage detection method for detecting a power outage state, a power outage detector, an illuminating device and a power supply device operable even during a power outage. Background technique [0002] Conventionally, such methods are described in Patent Documents 1 to 3. In this power outage detection method, an impedance element is connected in parallel to a power switch of a lighting device, and by grasping a voltage value or a current value passing through the impedance element, whether there is a power outage is detected. [0003] In this prior art, the lighting can be turned on and off by the switch on the wall when there is no power failure, and can be turned on regardless of the state of the switch on the wall during a power failure. [0004] However, it is necessary to add impedances such as resistors and neon tubes to the wall switches, and the construction of indoor wiring is required for the wall swi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/00
CPCG01R31/42G01R31/44H05B47/14G01R17/00G01R19/00G01R19/1658H02J9/061
Inventor 佐藤秀树梶敏之
Owner ADVANCE CREATE
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