KR101023967B1 - Lighting fixtures having rf-sensor - Google Patents

Abstract

PURPOSE: An LED device with an RF sensor is provided to improve the reliability of a product by extending an illumination function through the RF sensor. CONSTITUTION: An LED device is comprised of an RF sensor unit(10), a control unit(20), and a driving unit(30). The RF sensor unit is comprised of a chip for forming an electromagnetic field and an antenna. The chip of the RF sensor unit includes a dimming circuit unit(40). The dimming circuit unit is controlled by a control signal generated according to the sensing of fluid in the RF sensor unit. The control unit generates and outputs the control signal for driving the device by receiving the signal outputted from the RF sensor unit. The driving unit receives the signal from the control unit and operates an LED(2) and each component.

Description

LED lighting device equipped with RF sensor {LIGHTING FIXTURES HAVING RF-SENSOR}

The present invention relates to an LED lighting device and RF sensor installation method is installed RF sensor. In detail, the present invention, when the fluid is detected in the detection section LED lighting device is installed with an RF sensor to enable more stable control of the flashing of the light and the intensity of the light, and to expand the function of the light using RF It is about.

In addition, the present invention is to ensure that the RF sensor for detecting the fluid is formed in a pattern form on the PCB for implementing the circuit configuration of the LED lighting, and is equipped with a configuration for preventing the radio wave interference with the pattern-type RF sensor The present invention relates to an LED lighting device equipped with an RF sensor.

A lighting device implemented by a light emitting diode (LED) includes a plurality of LEDs mounted in a specific arrangement on a printed circuit board (PCB), and various electric, After mounting the electronic device, it is casing the outside and installs a lens, a light transmission cover, etc. in front of the light emitted from the LED.

The lighting device configured as described above is applied to indoor / outdoor lighting fixtures, or is applied to various types of signboards, etc., and these lighting devices are configured by adding control means for adjusting the blinking and intensity of the LED lights.

At this time, the control means of the LED lighting device is installed in a specific position, is provided in the form of a remote control for driving the LED wirelessly in a control box or a remote place to be connected to the PCB mounted LED and selectively drive the LED. . Recently, when a fluid or the like is detected by a sensor around an LED lighting device applied to an outdoor place such as a parking lot, a front door, an emergency stairway, a configuration is proposed and released to save power by blinking the LED.

Here, the sensor is the most common, IR (infrared ray) sensor is mainly applied to detect the heat emitted from the sensing object, in addition to the sensor of various forms such as light sensor, proximity sensor is well known Same as

LED lighting device having a conventional sensor configuration as described above malfunctions due to environmental influences in the case of the IR sensor, light sensor, proximity sensor, etc. because the sensing end is exposed to the outside to detect the heat or light of the fluid or the object There is a lot of this, in particular, the externally exposed sensing end is exposed to a problem that is a significant obstacle to the design proposal for beautifully configuring the appearance of the lighting device.

In addition, since the IR or optical sensor proximity sensor is installed at a considerable height on the PCB to be electrically connected to the LED, it is difficult to miniaturize the lighting device installed therein, and merely perform the blinking function of the LED by simply responding to heat, light, or the like. Therefore, a problem occurs that causes a limitation in the expansion of the lighting device.

The present invention has been invented to solve the above problems.

Accordingly, the present invention is to install a RF sensor in order to be controlled and controlled automatically according to the detection of the fluid flickering and illumination of the LED lights to perform a more accurate drive of the LED by the efficient detection of the fluid The purpose of the present invention is to provide a lighting device capable of performing various functions by controlling the lighting using RF.

Another object of the present invention, the RF sensor is formed in the form of a pattern on the PCB so that the sensor can be formed in a minimized size, the more accurate and stable driving state by the shielding configuration to prevent radio interference of the RF sensor To provide an LED lighting device to maintain the.

In order to achieve the above object, the present invention has the following configuration.

The present invention, a plurality of LEDs are arranged on a PCB to implement the illumination with the light emitted from the LED, the LED lighting device, including an antenna for forming an electromagnetic field over the section for the illumination is implemented, the electromagnetic field RF sensor unit for outputting a detection signal when the fluid is detected in the area; A control unit which receives the signal output by the RF sensor unit and generates and outputs a control signal for driving the device; It is configured to include; a driving unit for receiving the signal of the control unit to operate the LED and each component for driving the LED.

At this time, the control unit includes a dimming circuit unit for adjusting the intensity of the light emitted from the LED by the control signal generated according to the detection of the fluid in the RF sensor unit.

In order to achieve the above another object, the present invention has the following configuration.

According to the present invention, the RF sensor unit, the control unit, and the driving unit are one-chip mounted on the PCB in a COB form, and the antenna of the RF sensor unit is formed in a pattern form on the PCB. At this time, the RF sensor unit, the control unit, the driving unit and the antenna is formed outside the noise blocking unit for preventing radio noise interference generated when driving the LED.

On the other hand, the present invention further includes an RF communication module to enable the control unit to perform the key input signal by the remote controller held by the administrator, the RF communication to perform communication with the RF communication module of the control unit also in the remote controller The module is equipped and configured.

As described above, according to the present invention, the fluid is more efficiently sensed by the application of the RF sensor, so that the blinking of the LED light and the intensity of the light can be controlled and controlled more stably, thereby improving the reliability of the product. do. In particular, the present invention has the effect of maximizing product usability by adding more extended functions when implementing lighting using RF.

In addition, the present invention has the effect that the RF sensor is formed in the form of a pattern on the PCB so that the sensor is configured in a minimum size, the size of the product to which it is applied. Furthermore, the present invention has the effect that the LED lighting device can maintain a more accurate and stable driving state by the shielding configuration to prevent radio interference of the RF sensor.

1 is a perspective view of an LED lighting apparatus according to the present invention.
2 is a block circuit diagram of the LED lighting apparatus according to the present invention.
Figure 3 is an enlarged view of the RF sensor unit of the LED lighting apparatus according to the present invention.
4a and 4b is an exemplary view showing the use state of the LED lighting apparatus according to the present invention.
5 illustrates another embodiment of the present invention.

1 is a perspective view of the LED lighting apparatus according to the present invention, Figure 2 is a block circuit diagram of the LED lighting apparatus according to the present invention, Figure 3 is an enlarged view of the RF sensor unit of the LED lighting apparatus according to the present invention.

Referring to the drawings, the LED lighting apparatus according to the present invention can be implemented as indoor / outdoor lighting. 1 illustrates an LED luminaire having a longitudinal direction, such as a fluorescent lamp, as one of general lamps. The LED luminaire has a plurality of LEDs (2) mounted on a PCB (1) in a specific arrangement, the case 3 and the opening of the case (3) where the light of the LED (2) is emitted outside thereof. The light transmission cover 4 is configured to be combined. In addition, the lamp may be applied in various forms such as an LED street lamp, a lamp in the form of an incandescent lamp.

At this time, the LED lighting device according to the present invention is configured to install the RF sensor unit 10, the control unit 20, the drive unit 30 on the PCB (1) of the LED luminaire.

The RF sensor unit 10 mainly consists of a chip 11 and an antenna 12. For reference, the RF sensor unit 10 applies a Doppler effect of a method of detecting a reflected wave of a corresponding signal after transmitting a radio wave of a specific frequency, for example, a microwave. That is, the RF sensor unit 10 generates and transmits microwaves, and then the reflector (fluid) detects a frequency change according to a distance from a transmission source and outputs a detection signal.

In this case, an oscillation circuit for generating microwaves and the like, a signal coupling circuit for coupling a signal, and the like are formed in the chip 11, and the antenna 12 forms an electromagnetic field for transmitting and receiving microwaves and microwaves. It is a structure for doing so.

Therefore, the RF sensor unit 10 outputs a detection signal when the fluid 5 is detected in the electromagnetic field formed by the antenna 12.

Here, the chip 11 is installed in a minimal space in the form of Chip On Board (COB) of Surface Mounting Technology (SMT) for mounting electrical and electronic devices, and the antenna 12 is electrically connected to the chip 11. It is formed in the form of a pattern connected by. In particular, the pattern of the antenna 12 may be formed on the PCB 1 by a photo process or an etching process, or may be formed by being deposited or printed with a conductive material.

The control unit 20 is a configuration for generating and outputting a control signal for driving the device by receiving the signal output by the RF sensor unit 10. Naturally, the control unit 20 has a configuration of an amplifying circuit for amplifying and receiving a signal transmitted from the RF sensor unit 10. In particular, the control unit 20 is a microcomputer or microprocessor circuit is formed on the chip 11 of the RF sensor unit 10 described above.

That is, the chip 11 of the RF sensor unit 10 as described above has a one-chip configuration in which circuits such as a driving unit 30 and a dimming circuit unit 40 to be described later are formed. It is preferably formed by integrating into one chip.

In addition, the control unit 20 includes a dimming circuit unit 40 for adjusting the intensity of the light emitted from the LED (2). The dimming circuit unit 40 is the intensity of light, that is, the brightness of the light is controlled by the control signal generated according to the detection of the fluid 5 in the RF sensor unit 10.

The dimming circuit part 40 may be implemented as a PWM (pulse width modulation) circuit, and when such a dimming circuit part 40 is provided, the LED luminaire is always turned on, not in a flashing form of the LED 2. It will be in the form of adjusting the brightness. This significantly reduces the failure rate of the LED 2 and the electrical and electronic devices due to excessive power consumption and the instantaneous voltage increase due to the load generated every time the LED 2 flashes.

The driving unit 30 is a driving driver that receives a signal from the control unit 20 and operates each component for driving the LED 2 and the LED 2. As described above, the driving unit 30 is also formed on the chip 11 of the RF sensor unit 10 and integrated.

In addition to the above configuration, the LED lighting device has a noise blocking unit 50 formed outside the RF sensor unit 10, the control unit 20, the driving unit 30, and the antenna 12.

The noise blocking unit 50 is shielded to block interference of radio signals transmitted and received to the RF sensor unit 10 by surface leakage current or other noise factors on the PCB 1 generated by driving the LED 2. It is formed in the form of a partition.

Accordingly, the noise blocking unit 50 is formed of a conductive metal plate or a similar material.

4a and 4b is an exemplary view showing a state of use of the LED lighting apparatus according to the present invention.

FIG. 4A illustrates a configuration in which the LED lighting device is applied as a luminaire of a parking lot, and the liquid 5 such as a vehicle is in a state before entering the electromagnetic field of the antenna 12 described above. As a result, the LED 2 emits the minimum light already set.

4B illustrates a state in which the fluid 5 enters the electromagnetic field of the antenna 12. In this case, when the fluid 5 is detected by the RF sensor unit 10, the control unit 20 receives a detection signal. In the dimming circuit unit 40 and the driving unit 30 is controlled to emit the set light to implement automatic lighting.

As described above, the LED lighting apparatus according to the present invention maintains a fairly stable driving of the LED luminaire with a detection rate of the fluid detected in the electromagnetic field of 90% or more due to the characteristics of the RF sensor unit 10, and the distance of the fluid 5. By controlling the light intensity of the LED (2) in the dimming circuit section 40, a considerable power saving effect is obtained.

In addition, an RF sensor circuit, a control circuit, and a driving circuit are formed on the integrated one chip, and the antenna 12 is formed in a pattern form to realize miniaturization of a product due to a minimum installation area.

<Other Embodiments>

5 is an exemplary view of another embodiment of the present invention.

Referring to the drawings, the LED lighting device of another embodiment illustrates a configuration for performing a keyed signal by the remote controller 60 held by the manager managing the luminaire.

To this end, the control unit 20 further includes an RF communication module 21, and an RF communication module for communicating with the RF communication module 21 of the control unit 20 even in the remote controller 60 carried by the manager ( 61) is equipped and configured.

Such a remote controller 60 is easy to check the failure factors of the luminaire during the efficient management and maintenance of the LED luminaire, so that the test can be easily performed.

10: sensor unit 20: control unit
30: drive unit 40: dimming circuit unit
50: noise block 60: remote controller

Claims (5)

In the LED lighting device that is arranged on the PCB (1) a plurality of LED (2) to implement the illumination with the light emitted from the LED (2),
An antenna (12) for forming an electromagnetic field over a section for implementing illumination, and an RF sensor unit (10) for outputting a detection signal when a fluid is detected in the electromagnetic field;
A control unit 20 which receives the signal output by the RF sensor unit 10 and generates and outputs a control signal for driving the device;
Receiving the signal of the control unit 20 LED (2) and the LED driving device 30, the RF sensor characterized in that it comprises a; driving the respective components for driving the LED (2).
The method of claim 1, wherein the control unit 20
RF dimming circuit unit 40 for adjusting the intensity of the light emitted from the LED 2 by the control signal generated according to the detection of the fluid 5 in the RF sensor unit 10; LED illuminator with sensor attached.
The method of claim 1,
The RF sensor unit 10, the control unit 20, the drive unit 30 is one chip is mounted on the PCB 1 in the form of a COB, the antenna 12 of the RF sensor unit 10 on the PCB (1) LED lighting device is attached to the RF sensor, characterized in that formed in a pattern form.
The method of claim 3, wherein
A noise blocking unit 50 formed outside the RF sensor unit 10, the control unit 20, the driving unit 30, and the antenna 12 to prevent radio noise interference generated when the LED 2 is driven; LED lighting device is attached to the RF sensor, characterized in that it further comprises a.
The method of claim 1 or 2, wherein the control unit 20
In order to perform the key input signal by the remote controller 60 held by the administrator further includes an RF communication module 21, the remote controller 60 also RF control module 21 of the control unit 20 RF lighting module is equipped with an RF sensor, characterized in that the RF communication module 61 is configured to perform communication with.

Images