Precise sensing control method and night light of infrared induction night light

Abstract

The invention discloses a precise sensing control method for an infrared induction night light, which comprises the following steps: setting an infrared induction night light, and cooperating the infrared lens and the pyroelectric infrared sensor to form a specific Sensing area: The sensing area takes the axial midline of the lamp housing as the center line, and the angle between the sensing line on the outermost edge of the sensing area and the center line is 50°~60°; When the body is lying on the same horizontal plane, and the distance from the user's body is 0.5 to 1.5 meters, when the user raises his hand or stands up, the infrared rays emitted by the user enter the specific sensing area of ​​the night light, and the night light The light can be turned on. The invention also discloses an infrared induction night light implementing the method. Through the specific sensing area, the invention can light up the human body at night by raising one's hand, the sensing is accurate, and no misoperation occurs, and is especially suitable for use in the bedroom of mothers and infants.

Description

technical field [0001] The invention relates to the field of induction lamps, in particular to a precise induction control method for an infrared induction night lamp and the night lamp. Background technique [0002] The sensor night lights on the market are usually used for indoor lighting at night, such as doorways, aisles, stairs, bedrooms, etc., and can also be used in dimly lit places, such as storage rooms, wardrobes, etc. However, when it is used as a bedside lighting in a bedroom, especially as a night light for mothers and babies, the following problems will occur: [0003] 1) With lateral sensing, the user cannot precisely control the light on or off through the sensing area. see figure 1 , figure 2 As shown, the existing night light generally includes an electric light source and a control circuit for controlling the power on and off of the electric light source, and an infrared human body sensor connected to the control circuit. The infrared human body sensor...

AI Technical Summary

Problems solved by technology

[0003] 1) With lateral sensing, the user cannot precisely control the light on or off through the sensing area

see figure 1 , figure 2 As shown, the existing night light generally includes an electric light source and a control circuit for controlling the power on and off of the electric light source, and an infrared human body sensor connected to the control circuit. The infrared human body sensor includes a pyroelectric infrared sensor 10 and an infrared lens 30 Wherein, the pyroelectric infrared sensor 10 is generally located inside the housing 20, and the infrared lens 30 is arranged outside the pyroelectric infrared sensor 10 and covers the pyroelectric infrared sensor 10; the pyroelectric infrared sensor 10 is placed laterally Afterwards, form a lateral hemispherical sensing region that expands out with the side as the reference surface, and form a hemispherical fan sensing region 40 with the pyroelectric infrared sensor 10 as the center of the circle on the outer surface of the night light (the effective sensing distance is generally 5-6 meters), when any part of the human body enters the sensing area, the night light will light up, but it cannot be triggered only by the user's specific body position or human body parts, and it is easy to receive signals from air conditioners, heat sources, and light sources. and other interference signals, resulting in malfunction;

[0004] 2) see image 3 , Figure 4 As shown, in the existing night light with a human body sensor installed horizontally, if the fan-shaped sensing area 40 covers the bed 50, when the user 60 on the bed has activities such as normal turning over and horizontal movement, the night light 100 will be activated. Misoperation, light up;

like Figure 7 , Figure 8 As shown, the problem of the direct-light type is that the distance between the LED light source 70 and the astigmatism or the transparent lampshade 80 is too close, so that the light cannot be fully scattered by the lampshade, resulting in local overbrightness and glare, which is particularly obvious at night, especially for mothers and infants. To protect the eyes of infants and young children, the light should not be too strong, and the existing night lights cannot meet this requirement; Figure 9 , Figure 10 As shown, the side-firing type can solve the problem that the light from the light source directly hits the human eye, but because the light-emitting surface is narrow, the light is only concentrated next to the night light, and the light is not received from the front, so the overall lighting effect of the room is poor

[0007] 5) Most of the luminous colors or patterns of existing night lights are fixed, which cannot be adjusted according to environmental needs or personal preferences, and cannot adapt to people's individual needs; at the same time, night lights are only used as a lighting fixture and have no decorative function

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