KR101876207B1 - Control device of LED lighting device - Google Patents

Abstract

Disclosed is a control device of an LED lighting device installed at an underground parking lot. The control device capable of reducing cost of equipment comprises: a sensor unit sensing an object entering into an underground parking lot; and a control unit controlling an LED lighting device to have maximum permissible brightness or to set the brightness of the LED lighting device equal to or less than a set ratio in contradistinction to the maximum permissible brightness according to whether the sensor unit senses input of a signal sensing the object.

Description

[0001] The present invention relates to a control device of a LED lighting device,

The present invention relates to a control apparatus for an LED lighting apparatus.

There are various kinds of general parking lots such as an elevator system, a multi-layer circulation system, a horizontal circulation system, a planar reciprocation system, a puzzle parking system, a two-stage parking system,

Parking lots in residential facilities such as large apartment complexes have to be installed in many lighting devices, which causes a lot of electric power consumption, which is a major cause of increase of the management cost.

Especially, the light in the space like the underground parking lot is used not only as a means of creating the spatial image by determining the quality and character of the underground parking lot, but also eliminates psychological anxiety in the underground parking lot and plays a role of prevention of safety accidents.

Therefore, it is necessary that the lighting inside the parking lot is designed to be energy-saving type. However, in order to prevent the safety accident of the vehicle, the main point of the design should be to secure sufficient illumination compared to the same energy consumption.

According to the prior art, the energy-saving lighting and facility control system of the underground parking lot is composed of 5 lines of fluorescent lamps and 10 lines of 10 lines in length. It is equipped with a lighting control module (LCM) and a control system (CS) A heat sensor that can be identified is installed to light the surrounding lights when a person or a car appears, and to automatically turn off after a certain period of time when a person or a car passes by, saving energy in the underground parking lot.

That is, the microcontroller unit functions as a CPU that controls and controls several LCMs. The microcontroller unit identifies a person or an automobile by the heat sensing sensor, and the lighting control module (LCM) of the microcontroller unit to which the heat sensing sensor is connected controls (OFF) after a lapse of a predetermined period of time.

However, since such a parking lighting system employs a dimming circuit system, dimming converters are used for each luminaire, and dimming is implemented by communicating with the main control device, which is expensive and complicated in structure, There is a problem that the maintenance cost is increased due to a demand of a professional workforce.

Therefore, when dimming control is implemented using a single converter for dimming, the light efficiency is degraded, and communication problems may cause operational problems.

Patent Registration No. 10-1437541 (Publication date 2014.09.04.)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a control device of an LED lighting fixture which can reduce the facility cost while maintaining the same performance as a LED lighting fixture to which a dimming converter is applied.

According to an aspect of the present invention, there is provided an apparatus for controlling an LED lighting apparatus installed in an underground parking lot, comprising: a sensor unit for sensing an object entering an underground parking lot; And a controller for controlling the LED lighting apparatus to have a maximum permissible brightness or a brightness equal to or less than a setting ratio of the maximum permissible brightness according to whether a sensor signal of the sensor unit is inputted or not Can be achieved by a control device.

Here, the controller may be connected to a first converter that supplies power to the LED lighting apparatus so that the LED lighting apparatus can output the maximum allowable brightness when the object sensing signal is input. If the object sensing signal is not input, To a second converter that supplies the corresponding power so as to be output at a brightness equal to or less than a contrast set ratio.

When the object sensing signal is inputted and the object sensing signal is not inputted after the LED lighting apparatus and the first converter are connected, the control unit releases the connection between the LED lighting apparatus and the first converter after the lapse of the set time, It may be to connect the second converter.

According to the present invention, compared with the LED lighting apparatus to which the dimming converter is applied, the facility cost can be reduced while maintaining the same performance. Also, it is possible to control only a part of the dimming in one space.

1 is a block diagram of a control apparatus of an LED lighting apparatus according to the present invention;
2 is a view showing an embodiment of a control apparatus for an LED lighting apparatus according to the present invention,
3 is a view showing another embodiment of the control apparatus of the LED lighting apparatus according to the present invention,
4 is a view showing another embodiment of the control apparatus of the LED lighting apparatus according to the present invention,
5 is a view showing another embodiment of the control apparatus of the LED lighting apparatus according to the present invention,
6 is a block diagram of an SMPS of a control apparatus of an LED lighting apparatus according to the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

A control device of an LED lighting apparatus according to the present invention is a control device of an LED lighting device installed in an underground parking lot. The control device includes a sensor unit 10 for detecting an object entering an underground parking lot, And a controller 20 for controlling the LED lighting apparatus 30 to have a maximum permissible brightness according to whether a signal is input or to allow the LED lighting apparatus 30 to have a brightness equal to or less than a preset allowable brightness contrast ratio.

The control unit 20 is connected to the first converter 42 that supplies power to the LED lighting apparatus 30 so that the LED lighting apparatus 30 can output the maximum allowable brightness when the object sensing signal is input, The LED lighting device 30 is connected to the second converter 41 that supplies the corresponding power so that the LED lighting device 30 is output with a brightness equal to or less than the set allowable brightness contrast ratio.

When the object sensing signal is inputted and the object sensing signal is not inputted after the LED lighting apparatus 30 and the first converter 42 are connected, the control unit 20 controls the LED lighting apparatus 30 and the first The connection of the converter 42 is released, and the LED lighting device 30 and the second converter 41 are connected.

More specifically, as shown in FIG. 1, the control device of the LED lighting apparatus includes a sensor section 10, a control section 20, and an LED lighting apparatus 30 (a plurality of LEDs). The sensor unit 10 has a main function of detecting an object entering the underground parking lot. There are vehicles, motorcycles, etc. that enter underground parking lots, for example. And, preferably, detecting a person. Although not particularly suggested, the sensor unit 10 for sensing a vehicle, a motorcycle, or a person entering the underground parking lot may include an infrared sensor for detecting motion, a pressure sensor for measuring the magnitude of pressure or movement, a PSD sensor , And an ultrasonic sensor using a piezoelectric and a warp sensor. Or a module that receives the signal of the elevator. For example, when a person is aboard the elevator and presses the underground two layers, the input value may be transmitted to the sensor unit 10 to become the object detection signal. The sensor unit 10 may be provided for each of the LED lighting apparatuses, or one for each of a plurality of LED lighting apparatus groups.

The control unit 20 controls the LED lighting device 30 such that the LED lighting device 30 is set to the maximum allowable brightness or the LED lighting device 30 is set to the maximum allowable brightness contrast ratio The LED lighting device 30 is connected to a first converter 42 that supplies power to the LED lighting device 30 so that the LED lighting device 30 can output the maximum allowable brightness, The LED lighting device 30 is connected to the second converter 41 that supplies the corresponding power so that the LED lighting device 30 is output with a brightness equal to or less than the set allowable brightness contrast ratio.

When the object sensing signal is inputted and the object sensing signal is not inputted after the LED lighting apparatus 30 and the first converter 42 are connected, the control unit 20 controls the LED lighting apparatus 30 and the first The connection of the converter 42 is released, and the LED lighting device 30 and the second converter 41 are connected. The first and second converters 42 and 41 are mounted on one LED lighting fixture 30. If the output value of the converter for the maximum allowable brightness is 40W, the first converter 42 may be the 40W converter. If the output value of the converter for the brightness equal to or less than the preset allowable brightness ratio is 8W, 8W converter.

The reason why the present invention uses two converters (low-cost compared to a dimming-type converter) is that the efficiency of a conventional dimming-type converter is higher than that of a low-output control. For example, in the case of using a conventional dimming converter (2-step dimming), 20% of the output is turned on at normal (unrecognized object), and 100% is turned on at the time of sensor operation. Assuming a converter with output 40W, only 8W of sensor is output at the same time. When the sensor is activated, it outputs 40W. However, when only 20% of the output of a 40W converter is output, the light efficiency drops when compared to the output of the output 8W converter. On the other hand, when the present invention is assumed as a 40W parking lot, etc., it is composed of 8W and 40W converters. When the sensor is not working, the circuit is connected and output by 8W converter. When the sensor is operating, it is connected to two converters built in the device and output simultaneously, or 40W converter is connected. At this time, the sensor unit 10 or the converter is provided with a relay that receives a signal of a sensor and operates only a specific signal, thereby constituting a circuit. In addition, it is possible to add a circuit that can be lit for a predetermined time and set a lighting time when the sensor is operated in the sensor unit 10 (within the sensing range) If the sensor is activated, the driver's view may be disturbed, which may lead to faults or accidents.

Referring to FIG. 2, the control device of the LED lighting apparatus includes a control unit 20, that is, a relay 21 , 22) are installed. smps (switched mode power supply) -1 is 8W second converter 41, smps-2 is 40W first converter 42, and 30 is LED lighting equipment. The LED lighting apparatus 30 receives the commercial power through the first relay 21 and the second converter 41 built in the sensor unit 10. Since the output of the second converter 41 is 8W, the LED lighting apparatus 30 outputs the brightness corresponding to 20% of the maximum brightness. However, when the sensor unit 10 recognizes an object, the first relay 21 cuts off the second converter 41 and the LED lighting unit 30 turns on the second relay 22 and the first converter 42 And is supplied with commercial power. Since the output of the first converter 42 is 40 W, the brightness corresponding to 100% of the maximum brightness is output.

Referring to FIG. 3, the controller of the LED lighting apparatus is a type in which the control unit 20, that is, the relays 21 and 22 are installed in the first and second converters 42 and 41, respectively. 4, the controller of the LED lighting apparatus includes a control unit 20, a third relay 23, and a bypass circuit (not shown) in which a commercial power source is directly connected to the second converter 41 without passing through the sensor unit 10 24) are combined. As described in the embodiment, the LED lighting apparatus 30 of the normal (object-unaware) operation receives the commercial power through the second converter 41. Since the output of the second converter 41 is 8W, the LED lighting apparatus 30 outputs the brightness corresponding to 20% of the maximum brightness. When the sensor unit 10 recognizes an object, the LED lighting apparatus 30 receives the commercial power through the first converter 42. [ Since the output of the first converter 42 is 40 W, the brightness corresponding to 100% of the maximum brightness is output.

The control device of the LED lighting apparatus includes the sensor unit 10 and the first and second converters 42 and 41 for each LED lighting apparatus 30, but the sensor unit 10 of any one of the LED lighting apparatus 30 When an object is detected, all of the grouped LED lighting apparatuses 30 can be output at a maximum brightness at a time.

Referring to FIG. 4, the control unit of the LED lighting apparatus includes a control unit 20 and a relay power supply line 24. The relay 23 is installed in the sensor unit 10 and the constant power supply line 24 is connected directly to the second converter 41 starting from the commercial power supply line at the front end of the sensor unit 10. [ Accordingly, the second converter 41 of 8W is always driven, and when the sensor unit 10 is sensed, the relay 23 is operated to further drive the first converter 42 of 40W.

In order to supply power to the LED lighting apparatus 30, an earth leakage breaker 50 is connected between the commercial power source and the first and second converters or between the commercial power source and the first and second relays 21 and 22 Can be installed. The control unit 20 may further include a wireless communication control module 23 for controlling the commercial power output of the first and second converters 41 and 42 and for communicating with the integrated control center 60.

That is, the LED lighting apparatus 30, the first and second converters 41 and 42 for supplying power to the LED lighting apparatus 30, the first and second converters 41 and 42, And a control unit 20 including a wireless communication control module 23 for communicating with the center 60. In such a configuration, the first and second converters 41 and 42 are controlled according to whether the sensor unit 10 is detected or not. However, in some cases, the LED lighting apparatus 30 may be selectively / This is useful when you need to do batch control. For example, when it is intended to visually discriminate whether there is an abnormality in the brightness of the LED lighting apparatus 30 installed in the underground parking lot, that is, when it is desired to identify the LED lighting apparatus 30 requiring repair, The LED lighting apparatus 30 can be easily distinguished from the plurality of LED lighting apparatuses 30 by the naked eye. Also, it is useful to partially illuminate the LED lighting fixtures of all the permanent LED lighting fixtures that need to be inspected when inspecting the facilities of the underground parking lot.

It is important that the power supplied to the LED lighting apparatus according to the present invention is stably supplied. FIG. 6 is a block diagram of an SMPS apparatus supplied to a control apparatus such as an LED according to the present invention.

The SMPS device supplied to the LED converts an AC power source to a DC power source and supplies the DC power source to a control device such as an LED by a DC / DC converter. FIG. 6 is a detailed view of the DC / DC converter . The configuration of the AC / DC converter will be described in detail with reference to FIG. 6. When the input voltage is inputted, the voltage is passed through the filter 1, which is removed by the input OVP 4, The half wave and the radio wave input are switched by the controller, and the voltage is boosted or depressed through the transformer 2 again. The signal switched by the PWM frequency is switched by the FET device, which also senses the current of the drain former 2 and inputs the PWM control signal. The signal boosted by the transformer is filtered by an LC filter, which is a low-pass filter, to become an output voltage. An overvoltage protector (5) is provided at the output voltage terminal to suppress the occurrence of an overvoltage. The PWM controller 6 is a PWM input frequency generating circuit for dividing the input voltage, and the PWM controller 6 is connected to the overheat protection circuit 8. The overheat protection circuit 8 detects overheating of the DC / DC converter circuit of the synchronous rectification type switching regulator and transmits an overheat detection signal to the control unit. In addition, the transformer 2 amplifies or drops the input voltage, and the voltage is usually determined in proportion to the ratio of the number of windings of the primary side and the secondary side of the transformer 2. In order to measure the current of the transformer 2, a current sensor 7 is provided. In general, a current sensor using a Hall effect and a current sensor using a current loop are used as a current sensor. If the current value of the current detector is more than a certain voltage, the control circuit senses it and sends an overcurrent message and cut off the power if necessary. The switching device of AC voltage in the DC / DC converter circuit of the synchronous rectification type switching regulator usually uses the FET and applies the voltage to the gate terminal of the FET to turn on and off the FET. The LC filter connected to the output voltage stage is a low-pass filter and is used to smooth the voltage. The PWM controller is capable of remote monitoring by transmitting communication signals remotely. To prevent this, the stability of the capacitance value is increased by changing the capacitance value of the conventional Tantalum capacitor to the stable MLCC capacitor even when the temperature rises, thereby preventing the frequency distortion according to the temperature.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

10: Sensor unit
20:
30: LED lighting fixtures

Claims (5)

A control device of an LED lighting apparatus installed in an underground parking lot,
A sensor unit 10 for detecting an object entering the underground parking lot;
A controller 20 for controlling the LED lighting apparatus 30 to have a maximum permissible brightness or a brightness equal to or less than a maximum permissible brightness contrast ratio according to whether a sensor signal of the sensor unit is inputted or not Including,
When the object sensing signal is inputted from the sensor unit,
The second relay (41) is interrupted by the first relay (21) incorporated in the sensor unit, and the second relay (41) is connected to the second relay 1 converter 42. When the object sensing signal is not inputted from the sensor unit, the first relay 21 incorporated in the sensor unit controls the LED lighting apparatus to have a brightness lower than a setting ratio of the maximum permissible brightness To a second converter (41) for supplying a corresponding power to be outputted,
A commercial power source for supplying power to the LED lighting apparatus 30 and an earth leakage breaker 50 are provided between the first converter and the second converter,
The controller of the LED lighting apparatus 30 is provided with the first relay 21 and the second relay 22 in the sensor unit 10 and the first converter 42 is 40 W, Converter 41 is 8W,
The LED lighting device 30 is connected to the sensor unit 10 through the first relay 21 and the second converter 41 built in the sensor unit 10 when the sensor unit 10 recognizes an object Since the output of the second converter 41 is 8W, the LED lighting apparatus 30 outputs a brightness corresponding to 20% of the maximum brightness,
When the LED lighting device 30 recognizes an object in the sensor unit 10, the second converter 41 is cut off by the first relay 21, 2 relay 22 and the first converter 42. Since the output of the first converter 42 is 40W, the brightness corresponding to 100% of the maximum brightness is output,
The control unit 20 further includes a wireless communication control module 23 for controlling the commercial power output of the first converter 42 and the second converter 41 and communicating with the integrated control center 60,
The LED lighting apparatus 30 can be selectively or collectively controlled by the integrated control center 60 to visually discriminate whether the brightness of the LED lighting apparatus 30 installed in the underground parking lot is abnormal The LED lighting apparatus 30 can be turned on regardless of whether the sensor unit 10 is sensed or not so that the LED lighting apparatus 30 having an abnormality in the illuminance And the LED lighting apparatus (30) can be easily distinguished by the naked eye.
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