KR20110006443A - The led guard lamp which has a responsive effect in road environment - Google Patents

Abstract

PURPOSE: An LED guard lamp having a responsive effect in road environment is provided to minimize power consumption while maintaining high illumnance. CONSTITUTION: An SMPS device(10) chooses a constant current system. An electronics lighting sensor unit(20) selectively applies rectified power. A lighting LED(30) is always turned on by the applied power. A sensor(40) senses an object and illuminance. A selective lighting LED(50) is turned on while receiving power and performs selective lighting through a relay(60).

Description

Perimeter-sensitive LED security light {The LED guard lamp which has a responsive effect in road environment}

The present invention is a situation surrounding the place (for example, whether the sunset, etc.) is installed in the indoor or outdoor spaces such as roads, parks, shopping malls, security lights (hereinafter referred to as "security lights") including street lights, The present invention relates to a security light that allows the brightness of a security light optimized for a situation to be actively lit in consideration of access of an object including a person, changes in illuminance according to weather, and the like.

In addition, the present invention relates to a security light that enables to selectively control the lighting operation according to the periphery response by adjusting the detected illuminance.

Conventional security lamps, such as roads, parks, and malls, have a structure that is installed and lit indoors and outdoors for various uses such as guide lights and street lights.

The operation method of such a security light can be classified into two types. When a signal is detected by a sensor that detects the surrounding sound or an object, the power is applied to the control unit for blinking the lamp and the security light is turned on. It is disclosed in such a way that power is applied only to a predetermined time period (normal sunset time) while counting time by providing only a timer without providing a separate sensor.

In addition, in the lamps used, halogen or neon lamps are used, and metal sodium lamps usually use power of 250 watts (W) to 400 watts (W) for an average of about 10 hours per day. Hazardous substances are released to cause environmental pollution.

The security lights that have been implemented or proposed in this way require a lot of power consumption, do not respond effectively at the time of turning on and off, and only start repetitive operation under a single predetermined condition. In the case of operating conditions, there is a problem that wastes energy by constantly lighting after sunset as a means of security and contrast, even if there is no access of the object, to solve this problem.

In the case of security that detects and operates an object by a sensor, the above problems can be partially solved, but by cutting off the power consumption in the section where no signal is detected, a dark part is formed in the periphery of the security light. As the lighting function is not limited to paralysis, this is to be solved.

In addition, even in daytime, in a situation where deterioration of weather conditions or a temporary illuminance change may occur due to surrounding obstacles, the operation by a single timer is limited to provide convenience to users, especially on roads where vehicles pass. When installed, it can seriously affect the safety of driving, and suggests intelligent security that can respond to changes in surrounding conditions (illumination).

In addition, it replaces existing metal sodium, which is not environmentally friendly and uses high power, and presents security, which is environmentally friendly, semi-permanent, and has satisfactory brightness and illuminance even at low power.

Luminance is defined as the intensity of light emitted, illuminance refers to the brightness of the light-receiving surface, and security lamps are light sources, and particles of light (photons, photons) collide on the same surface as the light. The area is the unit area, and the quantity is defined as roughness (unit = lux).

An object of the present invention is to provide an illuminance detection selector switch capable of performing functions such as security of various patterns in response to a change in peripheral conditions (illuminance) which has been pointed out as a problem in the prior art.

In addition, an object of the present invention is to provide a security lamp using an environmentally friendly LED (LED) that minimizes energy consumption while maintaining high illuminance.

In addition, security lamps are considered to be energy-saving and maintain lighting at all times after sunset by security and preliminary means, and in order to provide a bright surrounding environment by accessing objects into the security lamp area, the security lamps are dualized according to the setting. The purpose of this invention is to realize the lighting structure which is distributed and operate to enable the change of brightness according to the situation.

The present invention not only provides a security light using the LED, but also can minimize the high power used by the existing LED security light.

In addition, it is possible to provide a more sophisticated and satisfactory security function by selectively implementing the optional operation according to the peripheral illumination and the user's preference.

It is divided into always-on and selective-lighting circumferentially, and it turns on constantly at the set time, and when the person or vehicle is detected by the sensor, the selection-lighting is doubled, and after the predetermined time elapses, the selection-lighting turns off the LED security lamp. Thus, by supplying low-power eco-friendly energy, providing a plurality of LEDs provided and implementing the arrangement in a parallel and parallel mixed structure, there is an effect that can extend the life compared to the existing security.

With reference to the accompanying drawings, the perimeter-sensitive LED security of the present invention devised to achieve the above objects and effects will be described in detail the embodiment and structure.

Definitions and explanations in English used in the present invention are as follows.

The CdS (Cadmium Sulfide) sensor is a semiconductor photo sensor using a photo conductive effect in which a resistance value decreases when exposed to light using cadmium sulfide, and is used in an illumination sensor.

When a certain amount of current flows through the driving coil, the relay acts as an electromagnet to mechanically connect and short-circuit the common terminal.

Switched-mode power supply (SMPS) is a method of generating a DC power source by oscillating at a higher frequency to increase efficiency, then making it a desired voltage or current, and then rectifying the filter to make DC power, compared to the analog method of rectifying a commercial frequency to make a DC power supply. to be.

1 is a lighting circuit diagram of a peripheral portion sensitive LED security light according to the present invention, Figure 2 is a partial detailed view of the peripheral portion sensitive LED security light according to the present invention.

As shown in the drawings, the present invention is a situation surrounding the place where a guide light installed in an indoor or outdoor space such as a road, a park, a shopping mall, a security light including a street lamp (hereinafter, collectively referred to as a 'security light') is installed (for example, , Such as whether or not the sunset, access to objects including people, changes in illuminance according to the weather, etc.), and the security light to enable the brightness of the security light optimized for the situation to be actively lit, the periphery response according to the present invention The type LED security lamp 100 is provided with an SMPS device unit 10 that adopts a constant current method for smooth driving, such as guaranteeing the life of the LED and maintaining a constant illuminance with respect to the external input power.

The reason why the SMPS device unit 10 is provided in the constant current method instead of the constant voltage will be described below.

When driving voltage (Vf) Min = 3.2V Typ.3.4V Max.3.6V (condition: Tj = 25 degrees If = 1.4A), it is the current and temperature (LED internal junction temperature) that affect Vf.

If 4V is applied as a constant voltage to the LED having a driving voltage (Vf) of 3.4V and the resistor is mounted at 1Ω, a current of 600mA flows through the LED while 0.6V is applied to the resistor.

At this time, the Vf value, which was initially 3.4V, increases as the current increases, and the Tf temperature is determined according to the heat dissipation condition, and the Vf value decreases as the temperature increases.

In other words, the initial setting of 3.4V may cause an unpredictable change according to the operating environment, which is gradually increased as the current set to 600mA drops to 550mA and the brightness becomes blurred or the Vf value decreases with temperature. Irregular illuminance lighting may take place, so drive in a constant current method.

Peripheral sensitive LED security lamp 100 according to the present invention is provided with an electronic light sensor 20 for selectively applying the rectified power through the SMPS device 10.

The electronic light sensor unit 20 includes a sensor unit for detecting illuminance and a timer for counting time, and the electronic light sensor unit 20 may be switched to lighting by illumination setting and lighting by time setting according to a user's selection.

In addition, when the illumination by the set illuminance sensing is lowered below the set illuminance by the illuminance sensor, the power is supplied to the always-on LED, and the illumination by the time setting is applied to the time zone set by the timer. When entering, it is characterized in that the power is applied to the LED always on.

A preferred embodiment of the electronic light sensor 20 is as follows.

The step of preparing a switch selectable by an operator from the outside is prepared.

The prepared selector switch may include a "lighting day" step, a "cloudy day light" step, and an "evening light" step.

First, the "lit even during the day" step, the ambient light is measured by the sensor unit for detecting the illuminance of the electronic light sensor unit 20, the illuminance is 100 _Lux When falling below, the electronic light sensor 20 may be implemented to apply power.

 "Cloudy day light" step, the ambient light is measured by the sensor unit for detecting the illuminance of the electronic light sensor 20, the illuminance 30 ~ 60_Lux When falling below, the electronic light sensor 20 may be implemented to apply power.

"Evening light" step, the ambient light is measured by the sensor unit for detecting the illuminance of the electronic light sensor unit 20, the illuminance is 5 ~ 10 _Lux When falling below, the electronic light sensor 20 may be implemented to apply power.

In addition, the "evening light" step may be operated by the sensor unit for detecting the illuminance, but may be powered only during the time set by the timer regardless of the detected illuminance.

Peripheral sensitive LED security lamp 100 according to the present invention is provided with a constant lighting LED 30 that is always lit by the power applied through the electronic lighting sensor unit 20.

The normally lit LED 30 is provided with one or more LEDs (LEDs), when provided in a plurality of configurations, in order to solve the problem caused by heat, a plurality of LEDs in series array LED 31 and parallel array LED ( 32).

Peripheral sensitive LED security lamp 100 according to the present invention is provided with a selective lighting LED 50 separately from the permanent lighting LED (30).

The selective lighting LED 50 does not operate even when power is applied through the electronic lighting sensor unit 20, and may be referred to as an LED that operates only when certain conditions are satisfied.

In order to control whether a certain condition is satisfied, the sensing unit 40 which detects an object and illuminance, and the relay 60 which is initially shorted to limit the lighting of the selective lighting LED 50 are connected to the selective lighting LED 50. Coexist together.

The detector 40 may use one or more of the CDS sensor 41 to detect the illuminance, and an infrared sensor, a heat sensor, and an impact sensor to detect an object.

In addition, the above-described sensor according to the term, it is known in advance that it can be replaced, including a shutter sensor, a fire and smoke sensor, a car sensor, a door sensor.

When the current is detected by the sensor provided in the sensing unit 40 and the current flows, the selective lighting LED 50 flows a certain amount of current to the driving coil through the LED lighting relay 60 and the coil acts as an electromagnet. The lamp is mechanically connected to the common terminal.

In addition, the selection LED is preferably provided to solve the problem caused by the LED heat by doubling the aluminum heat sink in the rear portion.

3 to 5 are exemplary views showing the structure of one embodiment, the installation state of the present invention, the LED arrangement and the structure of the lens.

The constant light LED and the selective light LED may be composed of a single or a plurality of LED group, the constant light LED 30 and the selective light LED 50 is the LED condensing lens 70 on the LED to increase the condensing effect In order to increase the condensing effect, it is preferable to maintain the condensing lens at an angle of 60 m 15 mm and a distance of 20 m 5 mm between the lenses.

One operation example of the peripheral sensitive LED security light according to the present invention will be examined.

According to the present invention, after sunset time, the constant light LED 30 is turned on to perform a partial function of a security light.

The sunset time may be a temporal concept and may be a numerical concept calculated from a set illuminance value according to the brightness of the illuminance.

Control of the sunset time has already been described in the electronic lighting sensor unit 20.

However, always-on LED 30 is low power consumption can save energy, while brightness may be insufficient to help the safety of pedestrians and vehicles.

Therefore, the sensing unit 40 is provided separately, and when the object is detected around the security lamp 100, the additional selection LED LED 50 is turned on.

Selective lighting LED 50 is operated while the object is detected, it is possible to achieve a continuous lighting for 30 seconds to 10 minutes through the setting.

In addition, when the object is re-detected in the continuous light interval, it can be said that the duration can be implemented to extend within the creative scope of the present invention.

In general, the normally lit LED 30 is used to connect 14 units of 1W (watts) in series and 2 rows (parallel) is used 28W, the selective lighting LED (50) is used 27W of 9 3W series connected in series. .

Therefore, in the present invention, the LED lamp of 28W is normally turned on, and when the object is detected, the 27W LED lamp is additionally lit to illuminate more than 15 meters of the surroundings, and the setting of 30 seconds, 3 minutes, 10 minutes, etc. after detecting the human body is performed. Through the continuous lighting, if the other objects are additionally detected, the lighting time is extended to maintain the lighting.

1 is a lighting circuit diagram of the peripheral sensitive LED security light according to the present invention.

Figure 2 is a partial detailed view of the peripheral sensitive LED security light according to the present invention.

Figure 3 is a reference illustration showing an embodiment of the detection unit according to the present invention.

Figure 4 is an installation state diagram of the peripheral sensitive LED security light according to the present invention.

5 is an exemplary view showing an LED array and a lens structure according to the present invention.

※ Explanation of code about main part of drawing ※

100. LED security light 10. SMPS device

20. Electronic lighting sensor unit 30. Constant lighting LED

31. Array LEDs 32. Parallel LEDs

40. Detector

41. CDS sensor 42. Object detection sensor

50. LED illuminator 60. (LED illuminator) relay

70. LED light collecting lens

Claims (10)

Security for enhancing the illuminance of the periphery through the LED; An SMPS device unit 10 adopting a constant current method for smooth driving of the LED; An electronic lighting sensor unit 20 for selectively applying rectified power; A constant lighting LED 30 which is always turned on by an applied power source; A detector 40 detecting an object and illuminance; A selection lighting LED 50 that lights up while power is applied by the sensing unit 40; Peripheral sensitive LED security light, characterized in that it comprises a relay (60) is provided so that the selective light LED 50 is turned on for a predetermined time. The method according to claim 1; The permanently-illuminated LED 30, when arranged in plural, LED in order to solve the problem caused by heat, the peripheral portion response characterized in that it consists of a mixed arrangement structure of the serial array LED 31 and the parallel array LED 32 Brother LED security. The method according to claim 1; The permanent lighting LED 30 and the selective light LED (50) is a peripheral sensitive LED security light, characterized in that composed of a single or a plurality of LED groups. The method according to claim 1; The electronic light sensor unit 20 includes a sensor unit for detecting the illuminance and a timer for counting the time, and the electronic lighting sensor unit 20 may be switched on by the illuminance sensing set according to the user's selection and the lighting by the time setting. Peripheral sensitive LED security lights. The method according to claim 4; The lighting by the set illuminance sensing, the peripheral sensitive LED security light, characterized in that the power is applied to the always-on LED when the detection unit falls below the set illuminance by the illuminance sensor. The method according to claim 4; The lighting by the time setting, peripheral power sensitive LED security light, characterized in that the power is supplied to the always-on LED when the time zone is set by the timer. The method according to claim 1; The sensing unit 40 is a peripheral sensing type LED, characterized in that one or more of the CDS sensor 41, the infrared sensor, the thermal sensor, the impact sensor to detect the illumination intensity is used to detect the object. Security etc. The method according to claim 1; The permanent lighting LED 30 and the selective lighting LED 50 is a peripheral sensitive LED security light, characterized in that the LED light collecting lens 70 is doubled on the LED to increase the condensing effect. The method of claim 8; The LED light collecting lens 70 is a peripheral sensitive LED security light, characterized in that to maintain a lens angle of 60 ± 15 ° and the distance between the lens to 20 ± 5 mm to enhance the light collecting effect. The method according to claim 1; The selective lighting LED 50 is a peripheral sensitive LED security light, characterized in that the aluminum heat sink is provided on the LED rear portion to solve the problem caused by heat.

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