Lamp and dimming method thereof

Abstract

According to the lamp and the dimming method thereof, the human body sensing module is used for detecting the gesture in the detection range, and when it is detected that the hand waves at least twice in the first direction, the light source module of the lamp enters one of the brightness adjusting mode and the color temperature adjusting mode. When it is detected again that the hand waves at least twice in the first direction, the light source module is switched to the other one of the brightness adjusting mode and the color temperature adjusting mode. Therefore, the gesture for switching and adjusting the brightness or the color temperature of the lamplight is simple, the lamp can correctly identify the gesture, and a user can conveniently adjust the brightness or the color temperature of the lamplight in a non-contact operation mode.

Description

Technical Field

[0001] The invention relates to a lighting device, and in particular to a lamp and a dimming method thereof. Background Art

[0002] When reading or writing, people usually use lamps for auxiliary lighting to protect their eyesight. Due to different usage scenarios and personal preferences, users hope to adjust the brightness and color temperature of the light to obtain the best lighting effect. Traditional lighting adjustment methods are mostly through mechanical control buttons, touch areas, or external remote control devices equipped on the lamps to assist in lighting adjustment. However, the above operation methods are relatively cumbersome and bring inconvenience to users.

[0003] In this regard, the user's operation method of adjusting the light by making specific gestures is more convenient than the traditional light adjustment method, and has become the mainstream development direction of the light adjustment method at this stage. However, it is difficult for existing lamps to correctly identify the user's gestures and perform corresponding dimming operations. Therefore, how to set the corresponding gestures for adjusting the light to facilitate the correct identification of the lamp has become a new research topic. Summary of the invention

[0004] The object of the present invention is to provide a lamp that is easy to adjust the light and a dimming method thereof.

[0005] To achieve the above object, the present invention provides a lamp, comprising:

[0006] Light source module;

[0007] A human body sensing module, used to detect gestures within the detection range;

[0008] A processing module, coupled to the light source module and the human body sensing module respectively;

[0009] The human body sensing module detects gestures, and when it detects that the hand is waved at least twice in the first direction, the processing module controls the light source module to enter one of the brightness adjustment mode and the color temperature adjustment mode;

[0010] When the human body sensing module detects that the hand is waving at least twice in the first direction again, the processing module controls the light source module to switch to the other of the brightness adjustment mode and the color temperature adjustment mode.

[0011] Preferably, the human body sensing module is a millimeter wave radar sensor.

[0012] Preferably, when the light source module enters the brightness adjustment mode, when the human body sensing module detects that the hand moves toward the second direction, the processing module controls the light source module to dim the brightness of the light; when the human body sensing module detects that the hand moves in the opposite direction of the second direction, the processing module controls the light source module to brighten the brightness of the light;

[0013] When the light source module enters the color temperature adjustment mode, when the human body sensing module detects that the hand moves toward the second direction, the processing module controls the light source module to lower the color temperature of the light; when the human body sensing module detects that the hand moves in the opposite direction of the second direction, the processing module controls the light source module to increase the color temperature of the light;

[0014] The second direction is perpendicular to the first direction.

[0015] Further preferably, the human body sensing module detects the position of the hand, taking the position of the hand before it moves as the initial position;

[0016] When the light source module enters the brightness adjustment mode, when the human body sensing module detects that the distance the hand moves from the initial position toward the second direction exceeds the first distance, the processing module controls the light source module to dim the light brightness; when the human body sensing module detects that the distance the hand moves from the initial position toward the second direction in the opposite direction exceeds the second distance, the processing module controls the light source module to brighten the light brightness;

[0017] When the light source enters the color temperature adjustment mode, when the human body sensing module detects that the distance the hand moves from the initial position toward the second direction exceeds the first distance, the processing module controls the light source module to lower the color temperature of the light; when the human body sensing module detects that the distance the hand moves from the initial position toward the second direction in the opposite direction exceeds the second distance, the processing module controls the light source module to increase the color temperature of the light.

[0018] Further preferably, when the light source module enters the brightness adjustment mode, when it is detected that the distance the hand moves from the initial position toward the second direction exceeds the first distance, the moving distance of the hand increases, and the brightness value of the light decreases by a corresponding value; when it is detected that the distance the hand moves from the initial position toward the second direction in the opposite direction exceeds the second distance, the moving distance of the hand increases, and the brightness value of the light increases by a corresponding value;

[0019] When the light source module enters the color temperature adjustment mode, when it is detected that the hand moves from the initial position toward the second direction for a distance exceeding the first distance, the hand's movement distance increases, and the color temperature value of the light decreases by a corresponding value; when it is detected that the hand moves from the initial position toward the second direction in the opposite direction for a distance exceeding the second distance, the hand's movement distance increases, and the color temperature value of the light increases by a corresponding value.

[0020] Preferably, the lamp further comprises a storage module, coupled to the processing module, for storing data of preset brightness and preset color temperature;

[0021] When the human body sensing module detects that the user's hand has flapped at least twice in the second direction, the processing module retrieves the data from the storage module and controls the light source module so that the brightness and color temperature of the light are adjusted to the preset brightness and preset color temperature respectively;

[0022] The second direction is perpendicular to the first direction.

[0023] Further preferably, the first direction is a horizontal direction, and the second direction is vertically downward or vertically upward.

[0024] Preferably, the human body sensing module is also used to detect whether there is a human body in the detection range. When a human body is detected entering the detection range, the processing module controls the light source module to turn on the light, and the human body sensing module further performs the step of detecting gestures.

[0025] Preferably, the human body sensing module is also used to detect whether there is a human body in the detection range. When it is detected that there is no human body in the detection range for a period exceeding a first period, the processing module controls the light source module to turn off the light.

[0026] To achieve the above object, the present invention provides a lamp dimming method, comprising:

[0027] The human body sensing module detects gestures, and when it is detected that the hand is waved at least twice in the first direction, the light source module of the lamp enters one of the brightness adjustment mode and the color temperature adjustment mode;

[0028] When it is detected again that the hand is waved at least twice in the first direction, the light source module switches to the other of the brightness adjustment mode and the color temperature adjustment mode.

[0029] Preferably, when the light source module enters the brightness adjustment mode, when the hand is detected to move in the second direction, the brightness of the light is dimmed; when the hand is detected to move in the opposite direction of the second direction, the brightness of the light is brightened;

[0030] When the light source module enters the color temperature adjustment mode, when the hand is detected to move in the second direction, the color temperature of the light is lowered; when the hand is detected to move in the opposite direction of the second direction, the color temperature of the light is increased;

[0031] The second direction is perpendicular to the first direction.

[0032] Further preferably, when the light source module enters the brightness adjustment mode, when it is detected that the hand moves from the initial position toward the second direction for a distance exceeding the first distance, the light brightness is dimmed; when it is detected that the hand moves from the initial position toward the second direction for a distance exceeding the second distance in the opposite direction, the light brightness is brightened;

[0033] When the light source enters the color temperature adjustment mode, when it is detected that the distance the hand moves from the initial position toward the second direction exceeds the first distance, the color temperature of the light is lowered; when it is detected that the distance the hand moves in the opposite direction from the initial position to the second direction exceeds the second distance, the color temperature of the light is increased.

[0034] Further preferably, when the light source module enters the brightness adjustment mode, when it is detected that the distance the hand moves from the initial position toward the second direction exceeds the first distance, the moving distance of the hand increases, and the brightness value of the light decreases by a corresponding value; when it is detected that the distance the hand moves from the initial position toward the second direction in the opposite direction exceeds the second distance, the moving distance of the hand increases, and the brightness value of the light increases by a corresponding value;

[0035] When the light source module enters the color temperature adjustment mode, when it is detected that the hand moves from the initial position toward the second direction for a distance exceeding the first distance, the hand's movement distance increases, and the color temperature value of the light decreases by a corresponding value; when it is detected that the hand moves from the initial position toward the second direction in the opposite direction for a distance exceeding the second distance, the hand's movement distance increases, and the color temperature value of the light increases by a corresponding value.

[0036] Preferably, when it is detected that the hand has flapped at least twice in the second direction, the brightness and color temperature of the light are adjusted to a preset brightness and a preset color temperature respectively;

[0037] The second direction is perpendicular to the first direction.

[0038] Further preferably, the first direction is a horizontal direction, and the second direction is vertically downward or vertically upward.

[0039] Preferably, it is also detected whether there is a human body in the detection range. When it is detected that a human body enters the detection range, the light source module turns on the light and further performs the step of detecting gestures.

[0040] Preferably, it is also detected whether there is a human body in the detection range, and when it is detected that there is no human body in the detection range for a period exceeding a first period, the light source module turns off the light.

[0041] Compared with the prior art, the lamp and the dimming method thereof provided by the present invention use a human body sensing module to detect gestures within a detection range. When a hand is detected to be waved at least twice in a first direction, the light source module of the lamp enters one of the brightness adjustment mode or the color temperature adjustment mode. When a hand is detected to be waved at least twice in the first direction again, the light source module switches to the other of the brightness adjustment mode or the color temperature adjustment mode. In this way, the gesture for switching to adjust the brightness or color temperature of the light is simple, which is conducive to the lamp to correctly identify the gesture and facilitates the user to adjust the brightness or color temperature of the light through a non-contact operation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic block diagram of the system structure of a lamp in one embodiment of the present invention;

[0043] Figure 2 is a schematic diagram of a gesture for switching a lighting adjustment mode in one embodiment of the present invention;

[0044] Figure 3 is a schematic diagram of a gesture for adjusting light brightness / color temperature in one embodiment of the present invention;

[0045] Figure 4 is a schematic diagram of updating the initial position of the hand in one embodiment of the present invention;

[0046] Figure 5 is a flow chart of a lamp dimming method in one embodiment of the present invention;

[0047] Figure 6 is a flow chart of a lamp dimming method in another embodiment of the present invention. DETAILED DESCRIPTION

[0048] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0049] Certain words are used in the specification and claims to refer to specific components. Those with ordinary knowledge in the field should understand that manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but rather use differences in components' functions as the criteria for distinction. The term "including" mentioned throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to".

[0050] Please refer to Figure 1 , Figure 11 is a schematic block diagram of the system structure of a lamp in one embodiment of the present invention. The lamp 1 provided in the embodiment of the present invention includes a light source module 11, a human body sensing module 12 and a processing module 13. The light source module 11 includes any device with a light-emitting function; the light source module 11 also includes a circuit for adjusting the light, which can receive a control signal and adjust the brightness and color temperature of the light accordingly. For example, the brightness of the light can vary in the range of 100lx to 1000lx, and the color temperature of the light can vary in the range of 2700K to 6500K, but the present invention is not limited thereto. The human body sensing module 12 is used to detect gestures within the detection range to assist in adjusting the brightness and color temperature of the light. The specific light adjustment method will be described in detail later, wherein the human body sensing module 12 is, for example, a millimeter radar sensor (Millimeter Radar Sensor), an ultrasonic sensor (Ultrasonic Sensor) or an infrared sensor (Infrared Transducer), etc., but the present invention is not limited thereto. In the present embodiment, the human body sensing module 12 is a millimeter wave radar sensor. Since the millimeter wave radar sensor can detect the moving distance of the hand to identify the gesture without the aid of a light source during operation, it can correctly identify gestures under different ambient brightness. The millimeter wave radar sensor also has the advantages of being able to detect tiny movements of the human body and having strong anti-interference capabilities. The processing module 13 can be any form of computing element, such as a processing chip (Scalar IC), a central processing unit (CPU), a microprocessor, a programmable control unit, etc. The processing module 13 is coupled to the light source module 11 and the human body sensing module 12, respectively. The processing module 13 generates a control signal corresponding to the gesture according to the gesture detected by the human body sensing module 12 and transmits it to the light source module 11, thereby adjusting the brightness and color temperature of the light. In the present embodiment, please refer to Figure 2, the human body sensing module 12 is used to detect gestures within the detection range. When the human body sensing module 12 detects that the hand is waved at least twice in the first direction L1, the processing module 13 controls the light source module 11 to enter one of the brightness adjustment mode or the color temperature adjustment mode; when the human body sensing module 12 detects that the hand is waved at least twice in the first direction L1 again, the processing module 13 controls the light source module 11 to switch to the other of the brightness adjustment mode or the color temperature adjustment mode. Preferably, the first direction L1 is a horizontal direction, such as the left and right direction of the user relative to the human body sensing module 12, or the front and back direction, but the present invention is not limited thereto. In this embodiment, the user can enter one of the brightness adjustment mode or the color temperature adjustment mode by waving the hand in the left and right directions twice. At this time, the hand can be switched to the other of the brightness adjustment mode or the color temperature adjustment mode by waving the hand in the left and right directions twice again. That is to say, the human body sensing module 12 detects the moving distance of the hand in the left and right directions to identify the gesture, and then the processing module 13 forms a control signal according to the gesture to control the light source module 11 to enter and switch to the brightness adjustment mode or the color temperature adjustment mode. It should be noted that the gestures used in this embodiment for entering and switching the brightness adjustment mode or the color temperature adjustment mode are both waving left and right twice. In addition, other gestures for adjusting the light may also be included, for example: waving the hand left and right once is for adjusting the brightness and / or color temperature to the lowest, waving the hand left and right three times is for adjusting the brightness and / or color temperature to the highest, etc.; or, the gestures for entering and switching the brightness adjustment mode or the color temperature adjustment mode may be different, for example: waving the hand left and right twice is for entering one of the brightness adjustment mode or the color temperature adjustment mode, waving the hand left and right three times is for switching to the other of the brightness adjustment mode or the color temperature adjustment mode. The examples given here are for the convenience of understanding the use of gestures to adjust the light, and the present invention is not limited to this.

[0051] For details, please refer to Figure 3When the light source module 11 enters the brightness adjustment mode, when the human body sensing module 12 detects that the hand moves toward the second direction L2, the processing module 13 controls the light source module 11 to dim the brightness of the light; when the human body sensing module 12 detects that the hand moves in the opposite direction of the second direction L2, the processing module 13 controls the light source module 11 to brighten the brightness of the light. When the light source module 11 is in the color temperature adjustment mode, when the human body sensing module 12 detects that the hand moves in the second direction L2, the processing module 13 controls the light source module 11 to lower the color temperature of the light; when the human body sensing module 12 detects that the hand moves in the opposite direction of the second direction L2, the processing module 13 controls the light source module 11 to increase the color temperature of the light. The second direction L3 is perpendicular to the first direction L1. Preferably, the first direction L1 is a horizontal direction, and the second direction L2 is vertically downward or vertically upward. In this embodiment, the second direction L2 is vertically downward, that is, when dimming the light, the user can lower the brightness / color temperature by moving the hand downward, and can increase the brightness / color temperature by moving the hand upward, but the present invention is not limited thereto.

[0052] Preferably, the lamp 1 further includes an indicator light (not shown in the figure) for indicating the dimming mode of the light source module 11. For example, when the light source module 11 enters the brightness adjustment mode, the indicator light flashes green; when the light source module 11 enters the color temperature adjustment mode, the indicator light flashes blue; and when the light source module 11 exits the brightness adjustment mode and the color temperature adjustment mode, the indicator light goes out. This makes it easy for the user to identify the current working state of the lamp 1 and make corresponding gestures to adjust the light in a timely manner.

[0053] In a preferred embodiment, Figure 1 As shown, the lamp 1 also includes a storage module 14, which is coupled to the processing module 13 and is used to store data of preset brightness and preset color temperature. When the human body sensing module 12 detects that the hand has flapped at least twice in the second direction L2, the processing module 13 retrieves the data from the storage module 14 and controls the light source module 11 so that the brightness and color temperature of the light are adjusted to the preset brightness and preset color temperature respectively. Among them, because the second direction L2 is perpendicular to the first direction L1, the gesture of adjusting the preset brightness / color temperature will not conflict with the gesture of entering the brightness adjustment mode or the color temperature adjustment mode.

[0054] It should be noted that, because the gesture of clapping the hand at least twice in the second direction L2 is closer to the gesture of moving the hand toward the second direction L2 or in the opposite direction of the second direction L2, in order to improve the detection accuracy of the human body sensing module 12, preferably, when the light source module 11 enters the brightness adjustment mode or the color temperature adjustment mode, the human body sensing module 12 stops recognizing the gesture of clapping the hand at least twice in the second direction L2, that is, when the light source module 11 enters the brightness adjustment mode or the color temperature adjustment mode, the user cannot adjust the brightness and color temperature of the light to the preset brightness and preset color temperature respectively through the clapping gesture. For example, after the light source module 11 enters the brightness adjustment mode or the color temperature adjustment mode, when the human body sensing module 12 detects that the user has not made a gesture for a period of time exceeding the second time period t2, the processing module 13 controls the light source module 11 to exit the brightness adjustment mode or the color temperature adjustment mode, and at this time, the user can adjust the brightness and color temperature of the light to the preset brightness and preset color temperature respectively through the clapping gesture.

[0055] In a preferred embodiment, the human body sensing module 12 is also used to assist in detecting the entry / exit of a person. In other words, the human body sensing module 12 also detects whether there is a human body in the detection range. When the human body sensing module 12 detects that a human body enters the detection range, the processing module 13 controls the light source module 11 to turn on the light, so that the user can obtain lighting as soon as possible when entering the detection range, and the human body sensing module 12 further performs a step of detecting a gesture (for example, a gesture for adjusting the light, which includes but is not limited to the hand's movements in the first direction L1 and the second direction L2) to adjust the light in a timely manner after the user makes a gesture. When the human body sensing module 12 detects that there is no human body in the detection range for a period exceeding the first time period t1, the processing module 13 controls the light source module 11 to turn off the light to save power; furthermore, when the user manually performs the light-off operation, the light of the light source module 11 will not be turned off immediately, but when the human body sensing module 12 detects that the human body leaves the detection range, the processing module 13 controls the light source module 11 to turn off the light, so that the user can be assisted to leave the seat safely in an environment with lighting.

[0056] Based on the above, please refer to Figure 5 The present invention provides a dimming method for a lamp, comprising:

[0057] Step S1, the human body sensing module 12 detects whether there is a human body within its detection range;

[0058] If there is no human body in the detection range, the following steps are executed: Step S2′: if there is no human body in the detection range for a period longer than the first period t1, the processing module 13 controls the light source module 11 to turn off the light, that is, the light is automatically turned off after detecting that a person has left.

[0059] If there is a human body within the detection range, the following steps are executed: Step S2: when a person enters the detection range, the processing module 13 controls the light source module 11 to turn on the light, that is, the light is automatically turned on after detecting a person approaching, and the human body sensing module 12 further detects gestures to timely adjust the light according to the gestures made by the user;

[0060] After the light of the light source module 11 is turned on, the steps of adjusting the light according to the gesture are as follows:

[0061] Step S3, when the human body sensing module 12 detects that the hand is waved at least twice in the first direction L1, the processing module 13 controls the light source module 11 to enter one of the brightness adjustment mode and the color temperature adjustment mode. At this time, when the human body sensing module 12 detects that the hand is waved at least twice in the first direction L1 again, the processing module 13 controls the light source module 11 to switch to the other of the brightness adjustment mode and the color temperature adjustment mode.

[0062] Step S4, when the light source module 11 enters the brightness adjustment mode, when the human body sensing module 12 detects that the hand moves toward the second direction L2, the processing module 13 controls the light source module 11 to dim the brightness of the light; when the human body sensing module 12 detects that the hand moves in the opposite direction of the second direction L2, the processing module 13 controls the light source module 11 to brighten the brightness of the light;

[0063] In step S4′, when the light source module 11 enters the color temperature adjustment mode, when the human body sensing module 12 detects that the hand moves toward the second direction L2, the processing module 13 controls the light source module 11 to lower the color temperature of the light; when the human body sensing module 12 detects that the hand moves in the opposite direction of the second direction L2, the processing module 13 controls the light source module 11 to increase the color temperature of the light.

[0064] In a preferred embodiment, in step S3, when it is detected that the hand is waved at least twice in the first direction L1, the light source module 11 can enter the brightness adjustment mode or the color temperature adjustment mode by default, that is, the light source module 11 enters the brightness adjustment mode or the color temperature adjustment mode by default each time it enters the dimming mode according to a preset program. In another embodiment, the dimming mode entered by the light source module 11 is the brightness adjustment mode or the color temperature adjustment mode in which the light source module 11 was last in when it exited from the dimming mode.

[0065] Preferably, step S3 further includes: after the light source module 11 enters the brightness adjustment mode or the color temperature adjustment mode, when the human body sensing module 12 detects that the user has not made a gesture for a period exceeding the second time period t2, the processing module 13 controls the light source module 11 to exit the brightness adjustment mode or the color temperature adjustment mode. The second time period t2 is shorter than the first time period t1, so that the person leaving detection function will not conflict with the setting of exiting the dimming mode.

[0066] In a preferred embodiment, step S4 further includes: the human body sensing module 12 detects the position of the hand, and takes the position before the hand moves as the initial position p. When the human body sensing module 12 detects that the distance the hand moves from the initial position p toward the second direction L2 exceeds the first distance d1, the processing module 13 controls the light source module 11 to dim the light brightness, and when the moving distance of the hand does not exceed the first distance d1, the processing module 13 will not control the light source module 11 to adjust the light brightness, that is, the first distance d1 is the first threshold value for the human body sensing module 12 to detect the hand moving to dim the light brightness. Similarly, when the human body sensing module 12 detects that the distance the hand moves from the initial position p toward the second direction L2 in the opposite direction exceeds the second distance d2, the processing module 13 controls the light source module 11 to brighten the light brightness, and when the moving distance of the hand does not exceed the second distance d2, the light brightness remains unchanged, that is, the second distance d2 is the second threshold value for the human body sensing module 12 to detect the hand moving to brighten the light brightness. It should be noted that the smaller the values ​​of the first distance d1 and the second distance d2, the higher the sensitivity of adjusting the light brightness. The first distance d1 is, for example, 1 cm, and the second distance d2 is, for example, 1 cm, but the invention is not limited thereto.

[0067] Preferably, when the hand is detected to move from the initial position p to the second direction L2 for a distance exceeding the first distance d1, the hand's moving distance increases, and the light's brightness value decreases by a corresponding value; when the hand is detected to move from the initial position p to the second direction L2 for a distance exceeding the second distance d2 in the opposite direction, the hand's moving distance increases, and the light's brightness value increases by a corresponding value. For example, the light's brightness can be adjusted stepwise according to the hand's moving distance, but the present invention is not limited thereto. Specifically, each time the hand moves a specific distance in the second direction L2, the brightness value of the light is dimmed once by a fixed value, until the distance the hand moves in the second direction L2 reaches a preset maximum value, the brightness of the light is adjusted to the darkest; or, the brightness value of the light is closer to the darkest brightness value before adjustment, and when the moving distance of the hand has not reached the preset maximum value, the brightness of the light has been adjusted to the darkest, then the hand continues to move in the second direction L2, and the brightness of the light continues to remain at the darkest; each time the hand moves a specific distance in the opposite direction of the second direction L2, the brightness value of the light is brightened once by a fixed value, until the distance the hand moves in the opposite direction of the second direction L2 reaches a preset maximum value, the brightness of the light is adjusted to the brightest; or, the brightness value of the light is closer to the brightest brightness value before adjustment, and when the moving distance of the hand has not reached the preset maximum value, the brightness of the light has been adjusted to the brightest, then the hand continues to move in the opposite direction of the second direction L2, and the brightness of the light continues to remain at the brightest.

[0068] In this embodiment, the first distance d1 is 1 cm, and when the hand moves a distance greater than or equal to 10 cm in the second direction L2, the light brightness is adjusted to the darkest; the second distance d2 is 1 cm, and when the hand moves a distance greater than or equal to 10 cm in the opposite direction of the second direction L2, the light brightness is adjusted to the brightest. In other words, the gestures for brightening / dimming the light brightness are as follows: after the hand moves 1 to 10 cm from the initial position p to the second direction L2 and stays for about 1 second, the light dims, and the degree of dimming corresponds to the distance the hand moves; after the hand moves 1 to 10 cm in the opposite direction of the second direction L2 from the initial position p and stays for about 1 second, the light brightens, and the degree of brightening corresponds to the distance the hand moves.

[0069] Preferably, each time the user extends his hand into the detection range, the human body sensing module 12 uses the position where the hand stays when entering the detection range as the initial position p to detect the moving distance of the hand relative to the initial position p. Further, after the user makes a gesture to brighten / dim the light, such as Figure 4 As shown, the position where the hand rests will change compared to the initial position p. In order to facilitate the human body sensing module 12 to detect the gesture again, the human body sensing module 12 uses the new position where the hand rests as the updated initial position p′. That is to say, when the user makes the gesture of brightening / dimning the light again, the human body sensing module 12 detects the movement distance of the hand relative to the updated initial position p′.

[0070] In a preferred embodiment, step S4′ also includes: the human body sensing module 12 detects the position of the hand to adjust the color temperature of the light according to the position of the hand. The difference from step S4 is that adjusting the brightness of the light is changed to adjusting the color temperature of the light. The rest is the same as step S4 and will not be repeated here.

[0071] In another embodiment of the present invention, please refer to Figure 6 , you can also perform gestures:

[0072] Step S3′, when the human body sensing module 12 detects that the hand has clapped at least twice in the second direction L2, the processing module 13 retrieves the data of the preset brightness and color temperature from the storage module 14, and controls the light source module 11 so that the brightness and color temperature of the light are adjusted to the preset brightness and preset color temperature respectively. In another embodiment of the present invention, the user claps his hand up and down twice relative to the human body sensing module 12, that is, the brightness and color temperature of the light can be adjusted to the preset brightness and preset color temperature respectively, but the present invention is not limited thereto. It should be noted that the preset brightness / color temperature can be multiple, and the user can clap his hand three, four or more times in the second direction L2, and then convert the first preset brightness / color temperature, the second preset brightness / color temperature, etc. of different styles. In addition, the problem that the gesture of the hand clapping in the second direction L2 is close to the gesture of the hand moving toward the second direction L2 or the opposite direction of the second direction L2, which may cause the human body sensing module 12 to misjudge, has been described in detail above and will not be repeated here.

[0073] In summary, the lamp and its dimming method provided by the present invention use a human body sensing module to detect gestures within a detection range. When a hand is detected to be waved at least twice in a first direction, the light source module of the lamp enters one of the brightness adjustment mode and the color temperature adjustment mode. When a hand is detected to be waved at least twice in the first direction again, the light source module switches to the other of the brightness adjustment mode and the color temperature adjustment mode. In this way, the gesture for switching to adjust the brightness or color temperature of the light is simple, which is conducive to the lamp to correctly identify the gesture and facilitates the user to adjust the brightness or color temperature of the light through a non-contact operation method.

[0074] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes and modifications made without departing from the spirit and scope of the present invention are all within the scope of patent protection of the present invention.

Claims

1. A lamp, characterized in that: include: Light source module; A human body sensing module, used to detect gestures within the detection range; A processing module, coupled to the light source module and the human body sensing module respectively; The human body sensing module detects gestures, and when it detects that the hand is waved at least twice in the first direction, the processing module controls the light source module to enter one of the brightness adjustment mode and the color temperature adjustment mode; When the human body sensing module detects that the hand is waving at least twice in the first direction again, the processing module controls the light source module to switch to the other of the brightness adjustment mode and the color temperature adjustment mode.

2. The lamp according to claim 1, characterized in that: The human body sensing module is a millimeter wave radar sensor.

3. The lamp according to claim 1, characterized in that: When the light source module enters the brightness adjustment mode, when the human body sensing module detects that the hand moves toward the second direction, the processing module controls the light source module to dim the brightness of the light; when the human body sensing module detects that the hand moves in the opposite direction of the second direction, the processing module controls the light source module to brighten the brightness of the light; When the light source module enters the color temperature adjustment mode, when the human body sensing module detects that the hand moves toward the second direction, the processing module controls the light source module to lower the color temperature of the light; when the human body sensing module detects that the hand moves in the opposite direction of the second direction, the processing module controls the light source module to increase the color temperature of the light; The second direction is perpendicular to the first direction.

4. The lamp according to claim 3, characterized in that: The human body sensing module detects the position of the hand, taking the position of the hand before it moves as the initial position; When the light source module enters the brightness adjustment mode, when the human body sensing module detects that the distance the hand moves from the initial position toward the second direction exceeds the first distance, the processing module controls the light source module to dim the light brightness; when the human body sensing module detects that the distance the hand moves from the initial position toward the second direction in the opposite direction exceeds the second distance, the processing module controls the light source module to brighten the light brightness; When the light source enters the color temperature adjustment mode, when the human body sensing module detects that the distance the hand moves from the initial position toward the second direction exceeds the first distance, the processing module controls the light source module to lower the color temperature of the light; when the human body sensing module detects that the distance the hand moves from the initial position toward the second direction in the opposite direction exceeds the second distance, the processing module controls the light source module to increase the color temperature of the light.

5. The lamp according to claim 4, characterized in that: When the light source module enters the brightness adjustment mode, when it is detected that the hand moves from the initial position toward the second direction by a distance exceeding the first distance, the moving distance of the hand increases, and the brightness value of the light decreases by a corresponding value; when it is detected that the hand moves from the initial position toward the second direction by a distance exceeding the second distance in the opposite direction, the moving distance of the hand increases, and the brightness value of the light increases by a corresponding value; When the light source module enters the color temperature adjustment mode, when it is detected that the hand moves from the initial position toward the second direction for a distance exceeding the first distance, the hand's movement distance increases, and the color temperature value of the light decreases by a corresponding value; when it is detected that the hand moves from the initial position toward the second direction in the opposite direction for a distance exceeding the second distance, the hand's movement distance increases, and the color temperature value of the light increases by a corresponding value.

6. The lamp according to claim 1, characterized in that: The lamp also includes a storage module, coupled to the processing module, for storing data of preset brightness and preset color temperature; When the human body sensing module detects that the user's hand has flapped at least twice in the second direction, the processing module retrieves the data from the storage module and controls the light source module so that the brightness and color temperature of the light are adjusted to the preset brightness and preset color temperature respectively; The second direction is perpendicular to the first direction.

7. The lamp according to claim 3 or 6, characterized in that: The first direction is a horizontal direction, and the second direction is vertically downward or vertically upward.

8. The lamp according to claim 1, characterized in that: The human body sensing module is also used to detect whether there is a human body within the detection range. When a human body is detected entering the detection range, the processing module controls the light source module to turn on the light, and the human body sensing module further performs the step of detecting gestures.

9. The lamp according to claim 1, characterized in that: The human body sensing module is also used to detect whether there is a human body in the detection range. When it is detected that there is no human body in the detection range for a period exceeding a first period, the processing module controls the light source module to turn off the light.

10. A lamp dimming method, characterized in that: include: The human body sensing module detects gestures, and when it is detected that the hand is waved at least twice in the first direction, the light source module of the lamp enters one of the brightness adjustment mode and the color temperature adjustment mode; When it is detected again that the hand is waved at least twice in the first direction, the light source module switches to the other of the brightness adjustment mode and the color temperature adjustment mode.

11. The lamp dimming method according to claim 10, characterized in that: When the light source module enters the brightness adjustment mode, when the hand is detected to move in the second direction, the brightness of the light is dimmed; when the hand is detected to move in the opposite direction of the second direction, the brightness of the light is brightened; When the light source module enters the color temperature adjustment mode, when the hand is detected to move in the second direction, the color temperature of the light is lowered; when the hand is detected to move in the opposite direction of the second direction, the color temperature of the light is increased; The second direction is perpendicular to the first direction.

12. The lamp dimming method according to claim 10, characterized in that: When it is detected that the hand has flapped at least twice in the second direction, the brightness and color temperature of the light are adjusted to the preset brightness and preset color temperature respectively; The second direction is perpendicular to the first direction.

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