CN110778935A - LED table lamp capable of adjusting illumination intensity automatically and adjusting method thereof - Google Patents
LED table lamp capable of adjusting illumination intensity automatically and adjusting method thereof Download PDFInfo
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- CN110778935A CN110778935A CN201810849718.6A CN201810849718A CN110778935A CN 110778935 A CN110778935 A CN 110778935A CN 201810849718 A CN201810849718 A CN 201810849718A CN 110778935 A CN110778935 A CN 110778935A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
An LED table lamp capable of automatically adjusting illumination intensity. The lamp post is arranged on the lamp holder, a guide rail is arranged in the lamp post and is vertical to the lamp holder, a vertical motor is arranged at the lower end of the guide rail, a sliding block is arranged on the guide rail, and the vertical motor controls the sliding block to move on the guide rail; the sliding block is provided with a rotating motor, the lamp body is fixed at the rotating end of the rotating motor, and the rotating motor drives the lamp body to deflect; through perpendicular motor and rotating electrical machines, according to the luminous scintillation condition of environment, through the height and the angle of shining that change lamp body and shine the face, adjust the illumination illuminance of shining the face by oneself, do not need artifical the debugging.
Description
Technical Field
The invention relates to an LED table lamp, in particular to an LED table lamp which can automatically adjust the illumination of an irradiation surface.
Background
The LED light source has the advantages of high luminous efficiency, strong reliability, long service life, low cost and the like, and basically replaces an incandescent lamp to become a new generation of lighting source in indoor lighting. Most of the LED table lamps used in the market have constant illumination, but the required illumination is different for different use occasions, and it is difficult for users in the upper, middle and primary schools to adjust the illumination to a proper range. The patent of the invention with the publication number of CN 105351806B and the patent name of automatic illuminance regulation is a lamp cover consisting of an inner cover and an outer cover, wherein the inner cover is provided with a plurality of raised strips on the outer surface along the circumferential direction, the outer cover is provided with a plurality of sliding grooves on the inner surface, and the illuminance of illumination is regulated by three groups of LED lamps. This illumination adjustment is discontinuous and non-automatic.
Disclosure of Invention
In order to obtain more accurate illumination, the invention provides the LED table lamp with the self-adjusting illumination.
The technical scheme adopted by the invention for solving the technical problems is as follows: the LED desk lamp with the self-adjusting illumination comprises a lamp holder, a lamp body and a lamp post, wherein the lamp post is installed on the lamp holder, a guide rail is installed in the lamp post and is perpendicular to the lamp holder, a vertical motor is installed at the lower end of the guide rail, a sliding block is installed on the guide rail, and the vertical motor controls the sliding block to move on the guide rail; the sliding block is provided with a rotating motor, the lamp body is fixed at the rotating end of the rotating motor, and the rotating motor drives the lamp body to deflect; the lamp holder is fixedly provided with an illumination sensor and an input keyboard, a controller and an LED driving power supply are arranged in the lamp holder, the controller is respectively electrically connected with the input keyboard, the illumination sensor, the vertical motor, the rotating motor and the lamp body, an illumination value is set through the input keyboard, the illumination intensity of an illumination surface is collected by the illumination sensor and is conveyed to the controller for comparison processing, and the vertical movement of the vertical motor and the deflection of the rotating motor are controlled. The LED driving power supply is connected with the LED lamp on the lamp body, and the controller is connected with the LED driving power supply to control the LED lamp to be turned on or off.
The controller circuit comprises a microprocessor, a power supply circuit, a motor driving circuit, an input keyboard circuit, an illuminance sensor circuit and a control circuit, wherein one end of the input keyboard circuit is connected with an external input keyboard, and the other end of the input keyboard circuit is connected with the microprocessor, and signals of the input keyboard are input into the microprocessor for storage processing; one end of the illumination sensor circuit is connected with an external illumination sensor, and the other end of the illumination sensor circuit is connected with the microprocessor, so that the illumination intensity of the illumination surface is collected, processed by the front end and input into the microprocessor for processing; the signal processed by the microprocessor controls the motion of the vertical motor or the rotating motor through the motor driving circuit; one end of the control circuit is connected with the microprocessor, and the other end of the control circuit is connected with an external LED driving power supply to control the on-off of the LED lamp; the power circuit respectively provides required power for the microprocessor, the motor driving circuit, the input keyboard circuit, the illumination sensor circuit and the control circuit.
The controller can adjust the illumination of the irradiation surface by adjusting the height or angle between the lamp body and the irradiation surface through the vertical motor or the rotating motor according to the flickering condition of the ambient light.
The vertical motor and the rotating motor are stepping motors.
The adjusting method of the self-adjusting illumination comprises the following steps:
(1) starting a power supply, and setting an illumination value of an illumination surface, namely a set value, by an input keyboard; the lamp body is in a horizontal state;
(2) acquiring the illumination intensity of the illumination surface by an illumination sensor every 0.2 seconds for 10 times, calculating the average value of the 10 times and the difference value between the maximum value and the minimum value, if the difference value between the maximum value and the minimum value is more than or equal to 20 percent compared with the average value, entering the step (3); the ratio is less than 20%, and entering (5);
(3) the height of the lamp body is adjusted through a vertical motor: the controller sends a pulse signal to the vertical motor every time, acquires an illumination value of an illumination surface, compares the acquired illumination with a set value, and continuously adjusts the height of the lamp body when the acquired illumination is smaller than the set value;
(4) the illumination value of the sampling is higher than the set value for the first time, and the adjustment is finished;
(5) the height of the lamp body is adjusted through a vertical motor: the controller sends a pulse signal to the vertical motor every time, acquires an illumination value of an illumination surface, compares the acquired illumination with a value 1.5 times of a set value, and continuously adjusts the height of the lamp body, wherein the acquired illumination is smaller than the value 1.5 times of the set value;
(6) the illumination value of the sample is higher than the value 1.5 times of the set value for the first time, and the height adjustment is finished;
(7) through the rotating electrical machines, adjust the angle of shining of lamp body: the controller sends a pulse signal to the rotating motor every time, acquires an illumination value of an illumination surface, compares the acquired illumination with a set value, and continuously adjusts the illumination angle of the lamp body when the acquired illumination is higher than the set value;
(8) and (5) the illumination value of the sampling is lower than the set value for the first time, and the adjustment is finished.
The height of illumination and the illumination angle of illumination are respectively adjusted through a vertical motor and a rotating motor. Collecting the illumination intensity of the illumination surface for multiple times, calculating the average value and the difference value between the maximum value and the minimum value, detecting the flicker phenomenon in the ambient illumination, namely flicker exists in the ambient illumination, and only adjusting the height of the lamp body and the illumination surface; the flash phenomenon does not exist in the ambient light, the height between the lamp body and the irradiation surface is firstly adjusted, and then the angle between the lamp body and the irradiation surface is adjusted.
The lamp has the advantages that the illumination intensity of the irradiation surface can be automatically adjusted by changing the height between the lamp body and the irradiation surface and the irradiation angle through the vertical motor and the rotating motor without manual debugging.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a circuit schematic of the controller of the present invention.
In the figure, 1, a lamp holder, 2, a lamp post, 3, a lamp body, 4, a guide rail, 5, a vertical motor, 6, a sliding block, 7, a rotating motor, 8, an input keyboard, 9, an illuminance sensor, 10, a controller and 11, an LED driving power supply are arranged.
Detailed Description
As shown in fig. 1, the LED desk lamp with self-adjusting illuminance comprises a lamp holder (1), a lamp body (3) and a lamp post (2), wherein the lamp post (2) is installed on the lamp holder (1), a guide rail (4) is installed in the lamp post (2) and is perpendicular to the lamp holder, a vertical motor (5) is installed at the lower end of the guide rail (4), a sliding block (6) is installed on the guide rail (4), and the vertical motor (5) controls the sliding block (6) to move on the guide rail; a rotating motor (7) is arranged on the sliding block (6), the lamp body (3) is fixed at the rotating end of the rotating motor (7), and the rotating motor drives the lamp body to deflect; the lamp holder is characterized in that an illumination sensor (9) is fixedly mounted on the upper surface of the lamp holder (1), an input keyboard (8) is mounted on the upper surface of the lamp holder (1), a controller (10) and an LED driving power supply (11) are mounted in the lamp holder (1), the controller (10) is respectively connected with the input keyboard (8), the illumination sensor (9), the vertical motor (5), the rotating motor (7) and the lamp body (3) are electrically connected, an illumination value is set through the input keyboard (8), illumination intensity of an illumination surface is collected through the illumination sensor (9), comparison processing is carried out in the controller (10), and up-down movement of the vertical motor (5) and deflection of the rotating motor (7) are controlled. The LED driving power supply (11) is connected with the LED lamp on the lamp body (3), and the controller (10) is connected with the LED driving power supply (11) to control the on-off of the LED lamp.
In fig. 2, the controller circuit includes a microprocessor, a power circuit, a motor driving circuit, an input keyboard circuit, an illuminance sensor circuit, and a control circuit, wherein one end of the input keyboard circuit is connected to an external input keyboard, and the other end is connected to the microprocessor, and inputs signals of the input keyboard into the microprocessor for storage processing; one end of the illumination sensor circuit is connected with an external illumination sensor, and the other end of the illumination sensor circuit is connected with the microprocessor, so that the illumination intensity of the illumination surface is collected, processed by the front end and input into the microprocessor for processing; the signal processed by the microprocessor controls the motion of the vertical motor or the rotating motor through the motor driving circuit; one end of the control circuit is connected with the microprocessor, and the other end of the control circuit is connected with an external LED driving power supply to control the on-off of the LED lamp; the power circuit respectively provides required power for the microprocessor, the motor driving circuit, the input keyboard circuit, the illumination sensor circuit and the control circuit.
The adjusting method of the self-adjusting illumination comprises the following steps:
(1) starting a power supply, and setting an illumination value of an illumination surface, namely a set value, by an input keyboard; the lamp body is in a horizontal state;
(2) acquiring the illumination intensity of the illumination surface by an illumination sensor every 0.2 seconds for 10 times, calculating the average value of the 10 times and the difference value between the maximum value and the minimum value, if the difference value between the maximum value and the minimum value is more than or equal to 20 percent compared with the average value, entering the step (3); the ratio is less than 20%, and entering (5);
(3) the height of the lamp body is adjusted through a vertical motor: the controller sends a pulse signal to the vertical motor every time, acquires an illumination value of an illumination surface, compares the acquired illumination with a set value, and continuously adjusts the height of the lamp body when the acquired illumination is smaller than the set value;
(4) the illumination value of the sampling is higher than the set value for the first time, and the adjustment is finished;
(5) the height of the lamp body is adjusted through a vertical motor: the controller sends a pulse signal to the vertical motor every time, acquires an illumination value of an illumination surface, compares the acquired illumination with a value 1.5 times of a set value, and continuously adjusts the height of the lamp body, wherein the acquired illumination is smaller than the value 1.5 times of the set value;
(6) the illumination value of the sample is higher than the value 1.5 times of the set value for the first time, and the height adjustment is finished;
(7) through the rotating electrical machines, adjust the angle of shining of lamp body: the controller sends a pulse signal to the rotating motor every time, acquires an illumination value of an illumination surface, compares the acquired illumination with a set value, and continuously adjusts the illumination angle of the lamp body when the acquired illumination is higher than the set value;
(8) and (5) the illumination value of the sampling is lower than the set value for the first time, and the adjustment is finished.
For a desk lamp used for learning, a flickering phenomenon caused by other lights exists in ambient light, for example, a rotating fan under the ambient light causes flickering of the lights on an irradiation surface due to the rotation of the fan. The illumination of the irradiation surface is set to be 300lx, the ambient light has a flicker phenomenon, the slider is driven by the vertical motor, the height between the lamp body and the irradiation surface is reduced, and when the illumination of the irradiation surface is higher than a set value for the first time, the adjustment is finished.
If no flicker exists in the ambient illumination, the vertical motor drives the sliding block to reduce the height between the lamp body and the illumination surface, and when the illumination of the illumination surface is higher than 1.5 times of the set value for the first time, namely 450lx, the adjustment in the vertical direction is stopped; and then, by the anticlockwise deflection of the rotating motor, when the illumination of the irradiation surface is lower than a set value for the first time, namely 300lx, the adjustment is finished.
Claims (3)
1. The utility model provides a LED desk lamp of self-adjusting illuminance, includes lamp stand, lamp body, lamp pole, characterized by: the lamp post is arranged on the lamp holder, a guide rail is arranged in the lamp post and is vertical to the lamp holder, a vertical motor is arranged at the lower end of the guide rail, a sliding block is arranged on the guide rail, and the vertical motor controls the sliding block to move on the guide rail; the sliding block is provided with a rotating motor, the lamp body is fixed at the rotating end of the rotating motor, and the rotating motor drives the lamp body to deflect; the upper surface of the lamp holder is fixedly provided with an illumination sensor and an input keyboard, a controller and an LED driving power supply are arranged in the lamp holder, the controller is respectively and electrically connected with the input keyboard, the illumination sensor, the vertical motor, the rotating motor and the lamp body, an illumination value is set through the input keyboard, the illumination intensity of an illumination surface is collected by the illumination sensor and is transmitted to the controller for comparison processing, and the vertical movement of the vertical motor and the deflection of the rotating motor are controlled; the LED driving power supply is connected with the LED lamp on the lamp body, and the controller is connected with the LED driving power supply to control the LED lamp to be turned on or off.
2. The self-adjusting illumination LED desk lamp of claim 1, wherein: the controller can adjust the illumination of the irradiation surface by adjusting the height or angle between the lamp body and the irradiation surface through the vertical motor or the rotating motor according to the flickering condition of the ambient light.
3. A method for adjusting an LED table lamp with self-adjusting illumination is characterized by comprising the following steps: the method comprises the following steps:
(1) starting a power supply, and setting an illumination value of an illumination surface, namely a set value, by an input keyboard; the lamp body is in a horizontal state;
(2) acquiring the illumination intensity of the illumination surface by an illumination sensor every 0.2 seconds for 10 times, calculating the average value of the 10 times and the difference value between the maximum value and the minimum value, if the difference value between the maximum value and the minimum value is more than or equal to 20 percent compared with the average value, entering the step (3); the ratio is less than 20%, and entering (5);
(3) the height of the lamp body is adjusted through a vertical motor: the controller sends a pulse signal to the vertical motor every time, acquires an illumination value of an illumination surface, compares the acquired illumination with a set value, and continuously adjusts the height of the lamp body when the acquired illumination is smaller than the set value;
(4) the illumination value of the sampling is higher than the set value for the first time, and the adjustment is finished;
(5) the height of the lamp body is adjusted through a vertical motor: the controller sends a pulse signal to the vertical motor every time, acquires an illumination value of an illumination surface, compares the acquired illumination with a value 1.5 times of a set value, and continuously adjusts the height of the lamp body, wherein the acquired illumination is smaller than the value 1.5 times of the set value;
(6) the illumination value of the sample is higher than the value 1.5 times of the set value for the first time, and the height adjustment is finished;
(7) through the rotating electrical machines, adjust the angle of shining of lamp body: the controller sends a pulse signal to the rotating motor every time, acquires an illumination value of an illumination surface, compares the acquired illumination with a set value, and continuously adjusts the illumination angle of the lamp body when the acquired illumination is higher than the set value;
(8) and (5) the illumination value of the sampling is lower than the set value for the first time, and the adjustment is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810849718.6A CN110778935A (en) | 2018-07-28 | 2018-07-28 | LED table lamp capable of adjusting illumination intensity automatically and adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810849718.6A CN110778935A (en) | 2018-07-28 | 2018-07-28 | LED table lamp capable of adjusting illumination intensity automatically and adjusting method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110778935A true CN110778935A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810849718.6A Pending CN110778935A (en) | 2018-07-28 | 2018-07-28 | LED table lamp capable of adjusting illumination intensity automatically and adjusting method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114355763A (en) * | 2021-12-30 | 2022-04-15 | 浙江求是人工环境有限公司 | Illumination simulation system capable of adjusting illumination intensity and illumination angle of climate chamber |
| CN114688483A (en) * | 2020-12-30 | 2022-07-01 | 欧普照明股份有限公司 | Self-adaptive desk lamp |
-
2018
- 2018-07-28 CN CN201810849718.6A patent/CN110778935A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688483A (en) * | 2020-12-30 | 2022-07-01 | 欧普照明股份有限公司 | Self-adaptive desk lamp |
| CN114355763A (en) * | 2021-12-30 | 2022-04-15 | 浙江求是人工环境有限公司 | Illumination simulation system capable of adjusting illumination intensity and illumination angle of climate chamber |
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