KR20140070731A - Led lamp - Google Patents

Abstract

The present invention relates to an LED lamp comprising a lighting module having LED devices; a motion sensor sensing a motion of a target object; and a controller calculating a variation of a sensing value of the motion sensor and turning on the lighting module when the variation of the sensing value is within a registered reference variation range. Also, the LED lamp comprises: a lighting module having LED devices; a motion sensor sensing a motion of a target object; and a controller turning on the lighting module based on a sensing result of the motion sensor, wherein the motion sensor includes sensor windows having different sensing ranges and the sensor windows are formed to have different sensing directions, respectively. In the LED lamp, sensing performance of the motion sensor is increased in the lamp operating according to a sensing result of the motion sensor, and the lamp itself can adjust a sensing direction of the motion sensor.

Description

LED light {LED LAMP}

The present invention relates to an LED lighting lamp, and more particularly, to an LED lighting lamp capable of enhancing the detection performance of a motion detection sensor in an illumination lamp operating according to a detection result of a motion detection sensor, will be.

As oil prices continue to rise and environmental pollution problems begin to emerge, the government's "low-carbon green growth" policy has led to increased interest in the environment as well as governments, businesses and households. In order to prevent global warming, a means for reducing energy produced by fossil fuels is being developed. Among various energies, products for reducing electric energy have been proposed and popularized. As one of these products, you can see the illumination lamp that is activated by the detection result of the sensor so as not to operate under unnecessary condition. For example, a sensor-based operation type lighting system installed in a toilet, a hallway, a corridor, a veranda, etc. is a method of automatically detecting the movement of a person in the place and operating the lighting system. Such an illumination lamp has an advantage in that it is unnecessary to consume electric energy unnecessarily when the operation state of the illumination lamp is mistaken or forgotten, because an additional on / off switch operation is not required, The application range of the sensor-based illumination lamp is gradually expanding.

However, the sensor-based operation type illumination light suddenly turns off after a certain period of time after being turned on, resulting in some surprise or embarrassment.

In addition, when the human eye changes suddenly in brightness, such as when going from a bright place to a dark place, or from a dark place to a bright place, it is subject to adaptation reaction. There were also concerns about the occurrence of human casualties in certain places.

In addition, since the sensor-based operation type illumination light is mounted so that the sensing direction of the sensing sensor is fixed, it is general that the sensing direction and the sensing range are not adjusted. In such a case, the detection range is too wide and it is necessary to turn on unnecessarily when moving around, or when the detection range is too narrow, it is necessary to approach the illumination lamp more than the reference value. .

On the other hand, in the case of the conventional sensor-based illumination lamp, there was a lot of malfunction in the sensing operation. FIG. 5 is a diagram for explaining a method of detecting presence or absence of a person in an existing sensor-based illumination lamp. Referring to FIG. 5, the conventional sensor-based illumination sensing method detects a presence or absence of a person by a level sensing method. As shown in the figure, only when the sensor continuously measures a value exceeding the range of the lowest level and the highest level set as the reference value, it recognizes that there is human movement and performs illumination. In such a case, when a large operation is not performed, there is a case where it is judged that there is no person and the lighting is turned off. In addition, a malfunction is frequently caused by the unexpected noise generated internally in the illumination lamp, .

Korean Patent Publication No. 10-2009-0117342, published on November 12, 2009, an AC power LED lighting system having brightness control function)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a sensor lighting apparatus which illuminates with a gradual brightness change in a sudden lighting / The present invention has been made to solve the above problems.

The above object is achieved according to the present invention by an illumination module having a plurality of LED elements; A motion detection sensor for detecting movement of the object; And a control unit for calculating the rate of change of the sensing value of the motion sensor and turning on the lighting module when the reference rate of change is within a pre-registered reference rate of change range.

Here, the motion sensor may be a temperature sensor.

In addition, the motion sensor preferably calculates the rate of change with a sampled value during a predetermined sampling time.

On the other hand, an illumination module having a plurality of LED elements; A motion detection sensor for detecting movement of the object; And a control unit for turning on the illumination module based on the detection result of the motion detection sensor; The motion detection sensor may include a plurality of sensor windows having different sensing ranges, and each of the sensor windows may be achieved through an LED illumination lamp having different sensing directions.

Here, the main body unit may include the motion sensor. The sensing direction of each sensor window of the motion detection sensor may be adjusted according to a relative rotation between the socket unit and the main body unit in a state in which the socket unit is fixed Do.

Further, the main body portion includes a guide groove formed along a circumferential direction in the inner diameter, and at least one limiting rib protruding from the inner diameter; Wherein the socket portion includes a guide protrusion inserted into the guide groove to guide rotation of the socket portion when the socket portion is fastened to the main body portion, It is possible to further include a limiting jaw that restricts the operation of the apparatus.

In the LED lighting lamp, when the lighting module is turned on, the control unit controls the current supplied to the lighting module to gradually increase the brightness of the lighting module.

In addition, the controller may control the lighting module to reduce illumination to a predetermined brightness when no motion is detected for a predetermined time by the motion sensor in the on state of the illumination module .

Here, it is possible to adjust the brightness to 10% to 90% of the maximum brightness range of the lighting module.

According to the present invention, since the brightness of the illumination lamp is gradually adjusted in the method of sudden illumination change, it is possible to secure a field of view for the adaptation reaction of the eyes. This can reduce the incidence of human accidents due to the difficulty in securing a visual field during acclimatization of the eyes according to sudden lighting and emergency lighting.

In addition, since the sensing performance of the sensor is improved in an illumination lamp that operates by sensing motion through the sensor, it is possible to prevent a malfunction that frequently occurred in the prior art.

In addition, since the sensing direction and the sensing range can be adjusted within a certain range, flexible automatic lighting can be implemented according to the installation environment. Therefore, the operation of the illumination performed in an unnecessary situation is cut off, thereby saving energy.

In addition, the adjustment of the sensing direction and the sensing range can be easily carried out regardless of age and sex because the lighting lamp is easily rotated by hand rotation.

In addition, since it is possible to operate the illumination performed in a place where constant lighting is required, such as a weak point, by a sensor method, and when the person is not detected, the brightness of the illumination to be performed can be reduced to a certain level, .

In addition, it can be applied without any additional installation requirements by applying the power socket standard such as general bulb, and it is manufactured in a size comparable to the general size of the incandescent bulb, and various sensors, lighting modules, power supply and control unit are integrated therein, It is also advantageous in design design.

FIG. 1 shows an output waveform according to a sensor sensing state for explaining a sensing principle of a conventional motion sensing sensor,
2 is a perspective view of a LED lighting lamp according to an embodiment of the present invention,
FIG. 3 is an exploded perspective view of FIG. 2,
4 is an exploded perspective view for explaining the coupling and rotation principle between the main body portion and the socket portion of the LED lighting lamp according to the present invention,
FIG. 5 illustrates an output waveform according to a sensor sensing state for explaining a sensing principle of a motion sensor applied to an LED lighting lamp according to the present invention,
6 is a flowchart illustrating an operation of the LED lighting lamp according to the present invention,
FIG. 7 is a flowchart illustrating a specific determination process of the motion detection of FIG. 6,
FIG. 8 shows brightness levels of the LED lighting lamp according to the present invention,
9 is a perspective view of a motion sensor having a sensor window having different sensing directions and sensing ranges,
FIG. 10 shows the detection range of each of the sensor windows of the motion detection sensor of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the embodiments of the LED dimming lamp according to the present invention, corresponding components will be described using the same reference numerals, and the description thereof may be omitted if necessary.

The LED illumination light 100 according to the embodiment of the present invention includes an illumination module 141, a motion detection sensor 200, and a controller 140. The LED illumination lamp according to the present invention will now be described in more detail with reference to FIGS. 2 to 4 showing a perspective view and an exploded view of the LED illumination lamp.

The lighting module 141 generates a light source through an operation power source. In the embodiment of the present invention, the lighting module 141 includes a plurality of LED elements. Considering miniaturization and energy efficiency, LED devices are suitable.

The motion detecting sensor 200 has a function of detecting a motion of a target object, and in particular, is a sensor capable of detecting a motion of a person. Sensors that automatically detect movement of a person include a method of sending a beam-shaped ultrasonic wave, a method of sensing a moving object by measuring the time of reflection and a method of sensing motion by sensing heat energy emitted from the object, Considering the price to apply, it is exemplified that a temperature sensor which senses a thermal energy and detects a motion is used as a motion detection sensor.

The control unit 140 may be formed in a disc shape according to the shape of the LED illumination light body unit 150 and may be configured to control the operations of the illumination module 141 and the motion detection sensor 200 and the pulse width modulation PWM).

The control unit 140 calculates the rate of change of the sensing value of the motion sensor 200 and turns on the lighting module 141 if the rate of change is within a predetermined reference change rate range. FIG. 5 illustrates an output waveform according to a sensing state of a sensor to explain a sensing principle of a motion sensing sensor applied to an LED lighting lamp according to the present invention. Therefore, before calculating the rate of change of the sensing value and detecting the motion, there are many ways of calculating the rate of change of the sensing value. For example, the rate of change Is described as an example.

The motion detection sensor 200 continuously senses the sensed value in a predetermined period and transmits the sensed value to the control unit 140 when the operation condition is satisfied.

Here, the operating condition is that the lighting module 141 needs to be illuminated according to the light amount measurement value of the illuminance sensor (not shown). The illuminance sensor is a well-known technique applied to an illumination lamp which generally operates in a sensor manner, and it should be considered that the LED illumination lamp 100 of the present invention is not included in the sensor.

The control unit 140 calculates the rate of change by calculating the degree of change in the resultant value detected at the beginning of one cycle and the resultant value detected at the ending point of one cycle from the motion detection sensor 200, Is calculated by the following equation.

Here, T1 is the start time of the sensor detection period, T2 is the end time of the sensor detection period, V1 is the sensor detection value at the time T1, and V2 is the sensor detection value at the time T2.

The controller 140 compares the derived rate of change with the stored reference rate of change to determine whether a motion has occurred and controls the operation of the lighting module 141. The sensing method of the rate of change increases the sensing sensitivity as compared with the conventional level sensing method, and the human sensing performance is greatly improved even if the relatively small operation is performed.

FIG. 6 is a flowchart illustrating the operation of the LED lighting lamp according to the present invention, and FIG. 7 is a flowchart illustrating a process for determining a specific motion of FIG. Hereinafter, the operation process of the LED lighting lamp will be described in more detail.

First, the illuminance is detected by an illuminance sensor (not shown) (S100). The illuminance is determined according to the amount of light detected from the illuminance sensor (S111). When the illuminance is less than the reference value, the movement detection of the motion detection sensor 200 is allowed and detection is started (S120).

The motion detection process (S 200 (a)) will be described in more detail with reference to FIG. 6, the processes S 200 (a) to S200 (d) are the same as those of the process of calculating the rate of change of the motion of the human body.

In detail, in order to calculate a rate of change with the sampling time, a T1 value measurement (S210) and a T2 value measurement (S220) process are performed, and a rate of change is calculated based on a sensing value at a time point T1 and a sensing value at a time point T2 (S 230). This process is the same as the method of calculating the rate of change to the sampled value during the sampling time, and will not be described further.

When the rate of change is calculated, the rate of change is programmed and compared with a stored reference value (reference rate of change) (S 240). When the rate of change is not smaller than the reference value, that is, when the rate of change is larger than the reference value, the system determines the motion of the human body and transmits a detection signal (S 250).

Here, the stored reference value may be stored in a range of the rate of change value that can be determined by the motion of the human body, and may be determined to be a motion of the human body when the calculated rate of change is included in the stored reference value range.

Referring back to FIG. 6, if the result of the motion detection (S 200 (a)) is determined to be the motion of the human body, the duty ratio is adjusted to adjust the brightness of the lighting module 141 (S 410). Adjusting the duty ratio is performed through pulse width modulation so that the brightness of the illumination module 141 can be gradually increased or decreased. Of course, since the lighting module 141 is turned on at S 410, it is natural that the duty ratio is adjusted in a direction in which brightness is increased.

When the duty ratio reaches a maximum value and the brightness of the illumination module 141 reaches the maximum brightness (S 420), an illumination timer (pulse counter) is activated (S 430). This process is controlled through the control unit 140, and the maximum brightness duration of the lighting module 141 is set (S 430). If it is determined in step S 200 (b) that motion is detected during the maximum brightness, the illumination timer is reset and the maximum brightness duration is counted again (S 430). Here, the duration can be set from several seconds to several minutes depending on the purpose of the installation site.

If it is determined that there is no motion during the motion detection (S 200 (b)) after the maximum brightness duration of the illumination module 141 expires, the duty ratio is decreased through the pulse width modulation, (S 440) the brightness of the light source 141 to a set value.

If the set brightness value is zero (0), it is extinguished, and the process proceeds to S 200 (d), and a process of detecting a motion for activating the lighting module 141 proceeds.

However, since the LED illumination lamp 100 is installed in a vulnerable area, the brightness of the illumination module 141 may be lowered to a predetermined value by programming. Thus, .

There may occur a situation where there is no movement for a long time even in a state in which the duty ratio is reduced, so that additional brightness reduction or complete extinction may be required. To this end, if no additional motion is detected during a certain period of time, a standby mode timer (pulse counter) is activated (S 450) to switch to a standby mode (further decrease in brightness or completely turn off the lighting module) do.

 At this time, the pulse counter setting value at S 450 is set to a time that is usually longer than the pulse counter setting value at S 430 described above.

The brightness of the illumination module 141 will be described in detail with reference to FIG. 8, which shows the degree of brightness of each LED according to the present invention.

The output waveform at the top corresponds to the conventional illumination implementation, and the duty ratio is the minimum value (0%) or the maximum value (100%). This shows that the illumination is turned off and the maximum brightness is turned on, and only the on-off state is available without the brightness adjustment.

On the other hand, the LED illumination lamp according to the embodiment of the present invention can switch to the standby mode in which the dimming corresponding to the center output waveform and the waveform output at the lower end waveform are outputted.

Dimming is to gradually change the brightness value of the illumination module 141, and the standby mode is to reduce the illumination amount to a predetermined value.

As an example of dimming, the controller 140 controls the current supplied to the lighting module 141 to gradually increase the brightness of the lighting module 141 when the lighting module 141 is turned on .

 In the standby mode, the controller 140 controls the illumination module 141 to turn on the illumination at a predetermined brightness when the motion detection sensor 200 does not detect movement for a preset time period in the On state of the illumination module 141 The lighting module 141 may be controlled so as to be reduced. Herein, the standby mode may also include turning off the lighting of the set illumination module 141, which may include zero (0).

It is preferable that the brightness of the normal standby mode is set to about 30% of the maximum brightness range of the lighting module 141 because it can satisfy the energy saving effect and securing the basic visual field at night.

Returning to FIG. 6, the following process will be described.

If motion of the human body is detected during the counting process set by the standby mode pulse counter, the process returns to step 410 to increase the brightness of the lighting module 141. If no motion is detected and the set time according to step 450 has expired, The standby mode is switched to the standby mode in which the brightness of the illumination module 141 is further reduced or the illumination module 141 is completely turned off (S 460). If motion is detected during the standby mode (S 460) (S 200 (d)), the process of returning to step S 410 and increasing the brightness of the lighting module 141 is repeated.

As described in the task field to be solved, the LED lighting lamp according to the present invention capable of adjusting the sensing direction and the range of the sensor includes an illumination module 141 having a plurality of LED elements; A motion detection sensor (200) for detecting a motion of a target object; And a controller 140 for turning on the illumination module based on the detection result of the motion detection sensor.

Here, the motion detection sensor 200 includes a plurality of sensor windows 210 and 220 having mutually different sensing ranges, and each of the sensor windows 210 and 220 has a different sensing direction.

FIG. 9 is a perspective view of a motion detection sensor having a sensor window having different sensing directions and sensing ranges, and FIG. 10 is a view of sensing ranges of the sensor windows of the motion detection sensor.

 The motion sensor 200 according to an exemplary embodiment of the present invention includes two sensor windows 210 and 220 having different sensing ranges. As shown in FIG. 9, the first sensor window 210 and the second sensor window 210, (220) has a rectangular design structure.

The first sensor window 210 has a detection range of about 120 degrees in the top view direction and the second sensor window 220 has a detection range of about 75 degrees in the side view direction. Is designed. Of course, the detection range may be changed according to the design of the motion detection sensor 200.

The light sensor to which the motion detection sensor 200 is applied can select the sensor detection range when it is installed considering the direction of the motion sensor 200 according to the structure of the place of use.

 A body portion 150 to which the motion sensor 200 is mounted to control the sensor range and direction more easily and a socket portion 160 to be rotatably coupled to the body portion 150. [

The sensing direction of each sensor window of the motion detection sensor is adjusted according to the relative rotation between the socket unit 160 and the main body unit 150 while the socket unit 160 is fixed.

In addition, in the embodiment of the present invention, the bottom of the socket unit 160 is made to be applicable to a standardized socket (E26 Base) to which a power source of a commonly used incandescent lamp is supplied, and can be directly extended to a socket.

FIG. 4 is a view for explaining the coupling and rotation principle between the main body and the socket of the LED lighting lamp according to the present invention. More specifically, the main body 150 includes a guide groove (152), and at least one limiting rib (151) protruding from the inner diameter.

The socket portion 160 includes a guide protrusion 162 inserted into the guide groove 152 to guide the rotation of the socket portion 160 when the socket portion 160 is fastened to the main body portion 150, And a limiting jaw 162 which is caught by the limiting rib 151 and limits the rotation range when the socket 150 and the socket 160 rotate relative to each other.

The limiting jaws 162 are formed at three angles of 120 degrees along the upper circumferential direction of the socket 160. When the socket portion 160 is inserted into the main body portion 150 and coupled to the main body portion 150, each of the restriction tangs 162 installed at an angle of 120 degrees with respect to the center of the main body portion 150 is adjusted according to the thickness of the restriction ribs 151 and the width of the restriction tangs 162 And is substantially rotated to about 90 degrees. This is designed in consideration of the fact that the motion detection sensor 200 constructed in accordance with the embodiment of the present invention has two rectangular sensor windows 210 and 220. When the number of the sensor windows 210 and 220 is changed and the design is changed, Can be changed to a means by which the corresponding rotation adjustment is performed.

2, the LED illumination lamp 100 includes a sensor cover 120 covering and protecting the motion detection sensor 200, a lens unit 110 covering the illumination module 141, a motion sensor 200 And the sensor supporter 130 may be further configured to receive the sensor supporter 130 and fix the sensor supporter 130 to the control unit 140.

All components included in the detailed description are combined with the body portion 150 or received therein and integrated. In addition, it is designed to have the same size as that of a conventional incandescent lamp, and the sensing effect is improved and additional functions are added, which is highly likely to be used industrially.

Although several embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various modifications may be made without departing from the principles and spirit of the invention . The scope of the invention will be determined by the appended claims and their equivalents.

100: LED lighting lamp 110: lens part
120: sensor cover 130: sensor supporter
140: control unit 141: lighting module
150: main body 151: limiting rib
152: Guide groove 160: Socket section
161: limit jaw 162: guide projection
200: motion detection sensor 210: first sensor window
220: Second sensor window

Claims (9)

An illumination module having a plurality of LED elements;
A motion detection sensor for detecting movement of the object; And
And a control unit for calculating a rate of change of the sensing value of the motion sensor and turning on the lighting module if the reference rate is within a predetermined reference change rate range.
The method according to claim 1,
Wherein the motion detection sensor is a temperature sensor.
The method according to claim 1,
Wherein the motion detection sensor calculates the rate of change with a sampled value during a predetermined sampling time.
An illumination module having a plurality of LED elements;
A motion detection sensor for detecting movement of the object; And
And a control unit for turning on the illumination module based on the detection result of the motion detection sensor;
Wherein the motion detection sensor includes a plurality of sensor windows having different detection ranges, and the sensor windows are formed to have different sensing directions.
5. The method of claim 4,
A main body to which the motion detection sensor is mounted;
And a socket portion rotatably coupled to the main body portion,
Wherein the sensing direction of each of the sensor windows of the motion sensor is adjusted according to relative rotation between the socket unit and the main body unit in a state where the socket unit is fixed.
6. The method of claim 5,
The main body portion includes a guide groove formed along the circumferential direction in the inner diameter and at least one limiting rib protruding from the inner diameter;
Wherein the socket portion includes a guide protrusion inserted into the guide groove to guide rotation of the socket portion when the socket portion is fastened to the main body portion, Wherein the LED lighting lamp further comprises a limiting tie limiting the LED lighting lamp.
The method according to claim 1 or 4,
Wherein the control unit controls the current supplied to the lighting module to gradually increase the brightness of the lighting module when the lighting module is turned on.
The method according to claim 1 or 4,
Wherein the controller controls the illumination module to reduce illumination to a preset brightness when no motion is detected for a predetermined time by the motion sensor in an on state of the illumination module. Lighting.
9. The method of claim 8,
Wherein the predetermined brightness is 10% to 90% of a maximum brightness range of the lighting module.

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