CN115580955A - Lighting system for promoting focus adjustment - Google Patents

Abstract

Embodiments of the present invention relate to an illumination system that facilitates focus adjustment, comprising: the system comprises an alternating current power supply, a switch, a plurality of lighting devices, a control center and a cloud data platform; the plurality of lighting devices are connected with an alternating current power supply through a switch; each lighting device is connected to the control center through a communication network and is accessed to the cloud data platform through the control center; the control center obtains a control program from the cloud data platform and generates a control instruction for each lighting device according to the control program; each lighting device receives a control instruction issued by the control center, analyzes the control instruction to obtain control information, and outputs visual information at least once in every 30 minutes according to the control information; the information period of the primary visual information is 3-30 seconds, and the illumination intensity of the illumination device changes in the information period and comprises the appearance of the peak value and/or the valley value of the illumination intensity, wherein the peak value of the illumination intensity in the information period is larger than 1.2 times of the set illumination intensity, and the valley value of the illumination intensity in the information period is smaller than 0.8 times of the set illumination intensity.

Description

Lighting system for promoting focus adjustment

Technical Field

The invention relates to the technical field of lighting systems, in particular to a lighting system for promoting focus adjustment.

Background

Visual health is a worldwide public health problem. Myopia is one of the most prominent visual health problems, especially in the juvenile population.

The essence of myopia is that the anterior-posterior axis of the eyeball is lengthened, the curvature of the cornea of the eyeball is too large, and external light cannot be focused on the retina of the eye fundus, namely the structure of the eye is changed. A number of studies have shown that myopia is caused mainly by accommodation lag induced hyperopic defocus, so controlling hyperopic defocus, allowing the object image to land on the retina, is the most effective method for preventing and controlling myopia.

At present, the control and intervention means for the hyperopic defocus, especially for the juvenile population, mainly include the following:

1. atropine medicine: the atropine is dripped into eyes to achieve the effects of relaxing ciliary muscle, enlarging pupil, relaxing and adjusting. However, the mechanism of action of atropine is not well understood so far, and great uncertainty still exists in clinical application.

2. A cornea shaping mirror: through the 'hard' contact of the cornea shaping mirror, the central cornea is flattened, and the middle peripheral cornea is steepened, so that the aim of reducing peripheral hyperopia defocus is fulfilled. However, orthokeratology lenses require direct contact with the eye, improper use increases the risk of ocular inflammation, and are expensive and complex to fit.

3. Red light therapeutic instrument: the red light with the wavelength between 630 and 650 nanometers, which is beneficial to human bodies, in the natural light is integrated to replace the natural light, and the retina is irradiated under the limit conditions of safe power and effective time, so that the retina is promoted to generate and secrete more dopamine, and the increase of the axis of the eye is inhibited. The technical means is still researched and immature, and the long-term effectiveness and safety are not known; and the equipment belongs to professional medical equipment, is complex to operate, is not suitable for common household use, even damages normal retina and choroid components and tissues when being improperly used, and aggravates myopia.

In some public areas, such as classrooms, libraries and the like, the public areas are large audience groups, especially places where students spend a long time. If a device can be arranged in the places, the device can control the occurrence of hyperopic defocus, can be safely and simply operated and used, does not directly contact the human body, has high popularity and has good application prospect.

Disclosure of Invention

The invention aims to provide a lighting system for promoting the adjustment of the visual focus, which promotes the adjustment of the visual focus of a user in the lighting system environment by controlling the intermittent output and change visual information of a plurality of groups of lighting devices through a cloud data platform and a control center, thereby effectively relieving the occurrence of adjustment lag and effectively reducing or avoiding the occurrence of hyperopic defocusing caused by the adjustment lag.

To this end, an embodiment of the present invention provides an illumination system that facilitates focal adjustment, including: the lighting system includes: the system comprises an alternating current power supply, a switch, a plurality of lighting devices, a control center and a cloud data platform;

the plurality of lighting devices are connected with an alternating current power supply through the switch;

each lighting device is connected to a control center through a communication network and remotely accessed to the cloud data platform through the control center;

the control center obtains a control program from the cloud data platform, and generates a control instruction of each lighting device according to the control program; each lighting device receives a control instruction issued by a control center, analyzes the control instruction to obtain control information, and outputs visual information at least once in every 30 minutes according to the control information;

the information period of the visual information for one time is 3-30 seconds, and the illumination of the lighting device changes in the information period; the variation includes occurrence of a peak value and/or a valley value of the illuminance, wherein the peak value of the illuminance in the information period is greater than 1.2 times the set illuminance, and the valley value of the illuminance in the information period is less than 0.8 times the set illuminance.

Preferably, each lighting device comprises: a controlled light, a driver and a controller;

the controller analyzes the control information to obtain a control signal and sends the control signal to a driver; the control information includes: setting illumination, output frequency of visual information, information period length and illumination variation parameters in the information period; the variation parameters include: peak, valley, change time and hold time;

the driver drives the controlled luminous body to illuminate according to the set illumination intensity according to the control instruction, and outputs the visual information at least once every 30 minutes according to the output frequency of the visual information;

in the information period, the controlled luminous body is changed from the set illumination to the peak value within 1-5 seconds, and after the peak value is kept for 1-5 seconds, the controlled luminous body is changed from the peak value to the set illumination within 1-5 seconds; and/or, in the information period, the controlled luminous body changes from the set illumination to the valley value for 1-5 seconds, and changes from the valley value to the set illumination after the valley value is kept for 1-5 seconds, wherein the change time is 1-5 seconds.

Preferably, the set illuminance is in the range of 100 to 1000lux.

Preferably, the cloud data platform stores lighting device IDs and location information of the lighting devices, and automatically generates control programs of the lighting devices according to the location information of the lighting devices; alternatively, the first and second electrodes may be,

the cloud data platform receives programming instruction information input by the programmable input device, and creates, modifies or deletes control programs of the lighting devices according to the programming instruction information.

Preferably, the cloud data platform receives a lighting device regulation and control request sent by a user terminal; the lighting device regulation request comprises: lighting device ID and visual information regulation demand information;

and the cloud data platform creates, modifies or deletes the control program of the lighting device with the corresponding lighting device ID according to the lighting device regulation and control request.

Preferably, the lighting device, the control center and the cloud data platform respectively comprise respective communication modules;

the lighting device is connected to the control center through a communication module access communication network;

the control center is accessed to a communication network through a communication module and is remotely connected to the cloud data platform.

Preferably, the control center acquires information that the plurality of lighting devices are connected with the alternating current power supply through the switches, generates feedback information and sends the feedback information to the cloud data platform; the feedback information includes a lighting device ID and location information of the lighting device;

and the cloud data platform counts and analyzes the use information of each lighting device according to the feedback information.

Preferably, the driver specifically includes: a power supply chip and an adjustable resistor;

the power supply chip comprises a dimming control pin, and the adjustable resistor is connected with the dimming control pin;

the adjustable resistor adjusts the resistance value according to the control signal, so that the voltage of the dimming control pin is changed, the pulse width of a pulse width modulation signal for driving and outputting an MOS (metal oxide semiconductor) switching tube in the power chip is changed, and the output current of the power chip to the controlled luminous body is changed.

Preferably, the driver specifically includes: the device comprises a power supply chip, a pulse width modulation control chip and a pulse width modulation signal generating circuit;

the pulse width modulation control chip is connected with a pulse width modulation signal generating circuit, and the pulse width modulation signal generating circuit is connected with the power supply chip;

the pulse width modulation control chip controls and adjusts the pulse width of the pulse width modulation signal generated by the pulse width modulation signal generating circuit according to the control signal, and the power supply chip adjusts the output voltage of the controlled luminous body according to the pulse width.

Preferably, the controlled light-emitting body is one or more groups of silicon controlled light-emitting diodes; the driver specifically includes: a silicon controlled dimmer;

the silicon controlled rectifier dimmer receives a control signal, and controls the conduction angle of the silicon controlled rectifier dimmer according to the control signal, so that the output voltage output to the silicon controlled rectifier light emitting diode is adjusted.

According to the illumination system for promoting the adjustment of the visual focus, provided by the embodiment of the invention, the intermittent output changing visual information of the multiple groups of illumination devices is controlled through the cloud data platform and the control center, so that the adjustment of the visual focus of a user in the illumination system environment is promoted, the occurrence of adjustment lag can be effectively relieved, and the occurrence of far-vision defocusing caused by the adjustment lag can be effectively reduced or avoided.

Drawings

FIG. 1 is a block diagram of an illumination system that facilitates focus adjustment according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating the variation of the illumination of an illumination device in an illumination system during an information period according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a variation of illumination of an illumination device in an illumination system during another information period according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

An embodiment of the present invention provides an illumination system for facilitating focus adjustment, the illumination system including: the system comprises an alternating current power supply 10, a switch 20, a plurality of lighting devices 30, a control center 40 and a cloud data platform 50;

the plurality of lighting devices 30 are connected to the ac power supply 10 through the switch 20; in practical implementation, depending on practical application scenarios, a plurality of lighting devices 30 may be controlled by the same switch 20 to be connected to the ac power supply 10, each lighting device 30 may be controlled by an independent switch 20 to be connected to the ac power supply 10, or several lighting devices 30 may be grouped and controlled by one switch 20 to be connected to the ac power supply 10. The lighting devices 30 may be disposed in the same space or different spaces according to the use requirement.

For example, in a library, a plurality of lighting devices 30 may be controlled by the same switch 20 to be connected to an ac power source; as another example, in a classroom building, each lighting device 30 is located in a classroom and is controlled by a switch 20 to connect to an ac power source. In the above fig. 1 only the first case is shown as an example.

Each lighting device 30 is connected to the control center 40 through a communication network, and remotely accesses the cloud data platform 50 through the control center 40. Further, the lighting device 30, the control center 40 and the cloud data platform 50 in the present invention respectively include their respective communication modules; the lighting device 30 is connected to the control center 40 through a communication module accessing a communication network; the control center 40 accesses a communication network through a communication module and is remotely connected to the cloud data platform 50.

The cloud data platform 50 stores the lighting device IDs and the position information of the lighting devices 30, and automatically generates control programs of the lighting devices 30 according to the position information of the lighting devices 30 and the set lighting requirements; alternatively, the cloud data platform 50 receives the programming instruction information input by the programmable input device, and creates, modifies or deletes the control program of each lighting device 30 according to the programming instruction information.

The control center 40 obtains the control program from the cloud data platform 50, and generates a control instruction for each lighting apparatus 30 according to the control program.

Each lighting device 30 receives the control instruction issued by the control center 40, analyzes the control instruction to obtain control information, and outputs visual information at least once every 30 minutes according to the control information. The information period of the primary visual information is 3-30 seconds, and the illumination of the illumination device changes in the information period, including the occurrence of peak values and/or valley values of the illumination. Wherein, the peak value of the illumination intensity in the information period is larger than 1.2 times of the set illumination intensity, and the valley value of the illumination intensity in the information period is smaller than 0.8 times of the set illumination intensity. The set illumination of the invention is in the range of 100-1000lux. The illumination here refers to the illumination of the primary visual surface under illumination by the illumination device.

In addition, the present invention can also obtain the status information of the plurality of lighting devices 30 connected to the ac power supply 10 through the switch 20 via the control center 40, and generate feedback information to send to the cloud data platform 50; the feedback information includes the lighting apparatus ID and the position information of the lighting apparatus 30; the cloud data platform 50 can count and analyze the usage information of each lighting device 30 according to the feedback information.

Each lighting device 30 in the present invention includes: controlled luminaries 1, drivers 2 and controllers 3;

the controller 3 analyzes the control information to obtain a control signal and sends the control signal to the driver 2; the control information includes: setting illumination, output frequency of visual information, information period length and illumination variation parameters in the information period; the variation parameters include: peak, valley, change time and hold time;

the driver 2 drives the controlled luminous body 1 to illuminate according to the set illumination intensity according to the control instruction, and outputs the visual information for at least 1 time in every 30 minutes according to the output frequency of the visual information; in the information period, the controlled luminous body 1 changes from the set illumination to the peak value within 1-5 seconds, and then changes from the peak value to the illumination within 1-5 seconds after the peak value is kept for 1-5 seconds; and/or, in the information period, the controlled luminous body 1 changes from the set illumination to the valley value for 1-5 seconds, and then changes from the valley value to the set illumination after the valley value is kept for 1-5 seconds, and the change time is 1-5 seconds.

That is, the illumination system illuminates with a set illuminance during a period other than the information period, the illuminance varies during the information period, and a peak or a bottom of the illuminance occurs during the information period.

For example, in one information cycle, a peak value of the illuminance appears, the illuminance is changed from the set illuminance to the peak value for 1-5 seconds, and is kept at the peak value for 1-5 seconds, and then, the illuminance is changed from the peak value to the set illuminance for 1-5 seconds. The whole information period is 3-15 seconds.

Fig. 2 shows a specific example, and it can be seen that the length of this information period is 3 seconds, wherein, within the 1 st second of the information period, the illumination intensity is changed from 500lux to 1500lux, within the 2 nd second of the information period, the illumination intensity of 1500lux is kept output, and within the 3 rd second of the information period, the illumination intensity is changed from 1500lux to 500lux.

For another example, in one information cycle, a valley value of the illuminance appears, the illuminance is changed from the set illuminance to the valley value for 1 to 5 seconds, and is kept at the valley value for 1 to 5 seconds, and then, the illuminance is changed from the valley value to the set illuminance for 1 to 5 seconds. The whole information period is 3-15 seconds.

Fig. 3 shows a specific example, and it can be seen that the length of this information period is 3 seconds, wherein, in the 1 st second of the information period, the illumination intensity is changed from 500lux to 160lux, in the 2 nd second of the information period, the illumination intensity of 160lux is kept output, and in the 3 rd second of the information period, the illumination intensity is changed from 160lux to 500lux.

For another example, in one information period, a valley value and a peak value of the illumination intensity occur, the illumination intensity is changed from the set illumination intensity to the valley value for 1-5 seconds, the change time is kept at the valley value for 1-5 seconds, and then, the illumination intensity is changed from the valley value to the set illumination intensity for 1-5 seconds; then changing from the set illumination to the peak value for 1-5 seconds, keeping the peak value for 1-5 seconds, and then changing from the peak value to the set illumination for 1-5 seconds. The whole information period is 6-30 seconds.

For example, in one information period, the peak value and the valley value of the illumination intensity occur, the illumination intensity is changed from the set illumination intensity to the peak value for 1-5 seconds, the illumination intensity is kept at the peak value for 1-5 seconds, and then the illumination intensity is changed from the peak value to the set illumination intensity for 1-5 seconds; changing from the set illumination to the valley value for 1-5 seconds, maintaining the valley value for 1-5 seconds, and then changing from the valley value to the set illumination for 1-5 seconds; the whole information period is 6-30 seconds.

According to research, the perceptual system of the organism responds to the external change of the visual information within 5 seconds, and the average response time is 2-3 seconds, so that the organism can effectively respond to the change of the visual information by setting the whole information period within 3-30 seconds, and the aim of stimulating the visual system to respond correspondingly is fulfilled.

The variation of the peak and valley values can provide a control effect on the focus of the user of the illumination system.

In the invention, the controlled luminous bodies 1 can be one group or a plurality of groups, and the light source types can specifically comprise tungsten filament lamp beads, traditional Light Emitting Diodes (LEDs), silicon controlled light emitting diodes, organic Light Emitting Diodes (OLEDs) and the like.

The invention realizes the change output of the illumination in the information period by controlling the driver 2 to drive the controlled luminous body 1 through the control signal.

In one particular lighting system implementation, the driver 2 may specifically comprise: a power supply chip and an adjustable resistor; the power supply chip comprises a dimming control pin, and the adjustable resistor is connected with the dimming control pin; the adjustable resistor adjusts the resistance value according to the control signal, so that the voltage of the dimming control pin is changed, the pulse width of a pulse width modulation signal for driving the output MOS switch tube in the power supply chip is changed, and the output current of the power supply chip to the controlled luminous body 1 is changed.

In another specific lighting system implementation, the driver 2 may specifically comprise: the pulse width modulation control circuit comprises a power supply chip, a pulse width modulation control chip and a pulse width modulation signal generating circuit; the pulse width modulation control chip is connected with a pulse width modulation signal generating circuit, and the pulse width modulation signal generating circuit is connected with the power supply chip. The pulse width modulation control chip controls and adjusts the pulse width of the pulse width modulation signal generated by the pulse width modulation signal generating circuit according to the control signal, and the power supply chip adjusts the output voltage of the controlled luminous body 1 according to the pulse width.

In a further specific lighting system implementation, the controlled light emitters 1 are embodied as one or more groups of silicon controlled light emitting diodes; the driver 2 comprises in particular a thyristor dimmer. The silicon controlled rectifier light modulator receives the control signal, and controls the conduction angle of the silicon controlled rectifier light modulator according to the control signal, so that the output voltage output to the silicon controlled rectifier light emitting diode is adjusted.

According to the illumination system for promoting the adjustment of the visual focus, provided by the embodiment of the invention, the intermittent output changing visual information of the multiple groups of illumination devices is controlled through the cloud data platform and the control center, so that the adjustment of the visual focus of a user in the illumination system environment is promoted, the occurrence of adjustment lag can be effectively relieved, and the occurrence of far-vision defocusing caused by the adjustment lag can be effectively reduced or avoided.

Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. The software modules may be disposed in Random Access Memory (RAM), read Only Memory (ROM), electrically Programmable Read Only Memory (PROM), electrically Erasable Programmable Read Only Memory (EEPROM), a hard disk, a removable magnetic disk, a compact disc read only memory (CD-ROM), or any other form of storage medium known in the art.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. An illumination system that facilitates focus adjustment, the illumination system comprising: the system comprises an alternating current power supply, a switch, a plurality of lighting devices, a control center and a cloud data platform;

the plurality of lighting devices are connected with an alternating current power supply through the switch;

each lighting device is connected to a control center through a communication network and remotely accessed to the cloud data platform through the control center;

the control center obtains a control program from the cloud data platform and generates a control instruction of each lighting device according to the control program; each lighting device receives a control instruction issued by a control center, analyzes the control instruction to obtain control information, and outputs visual information at least once in every 30 minutes according to the control information;

the information period of the visual information for one time is 3-30 seconds, and the illumination of the lighting device changes in the information period; the variation includes occurrence of a peak value and/or a valley value of the illuminance, wherein the peak value of the illuminance in the information period is greater than 1.2 times the set illuminance, and the valley value of the illuminance in the information period is less than 0.8 times the set illuminance.

2. The lighting system, as set forth in claim 1, wherein each lighting device comprises: a controlled light, a driver and a controller;

the controller analyzes the control information to obtain a control signal and sends the control signal to a driver; the control information includes: setting illumination, output frequency of visual information, information period length and illumination variation parameters in the information period; the variation parameters include: peak, valley, change time and hold time;

the driver drives the controlled luminous body to illuminate according to the set illumination intensity according to the control instruction, and outputs the visual information at least once every 30 minutes according to the output frequency of the visual information;

in the information period, the controlled luminous body is changed from the set illumination to the peak value within 1-5 seconds, and after the peak value is kept for 1-5 seconds, the controlled luminous body is changed from the peak value to the set illumination within 1-5 seconds; and/or, in the information period, the controlled luminous body changes from the set illumination to the valley value for 1-5 seconds, and changes from the valley value to the set illumination after the valley value is kept for 1-5 seconds, wherein the change time is 1-5 seconds.

3. The illumination system of claim 1, wherein the set illumination is in a range of 100-1000lux.

4. The lighting system according to claim 1, wherein the cloud data platform stores lighting device IDs and location information of the lighting devices, and automatically generates control programs of the lighting devices according to the location information of the lighting devices;

or the cloud data platform receives programming instruction information input by the programmable input device, and creates, modifies or deletes the control program of each lighting device according to the programming instruction information.

5. The lighting system according to claim 1, wherein the cloud data platform receives a lighting device regulation request sent by a user terminal; the lighting device regulation request comprises: lighting device ID and visual information regulation demand information;

and the cloud data platform creates, modifies or deletes the control program of the lighting device with the corresponding lighting device ID according to the lighting device regulation and control request.

6. The lighting system according to claim 1, wherein the lighting device, the control center and the cloud data platform each comprise a respective communication module;

the lighting device is connected to the control center through a communication module access communication network;

the control center is accessed to a communication network through a communication module and is remotely connected to the cloud data platform.

7. The lighting system according to claim 1, wherein the control center obtains information that a plurality of lighting devices are connected with an alternating current power supply through the switch, generates feedback information and sends the feedback information to the cloud data platform; the feedback information includes a lighting device ID and location information of the lighting device;

and the cloud data platform counts and analyzes the use information of each lighting device according to the feedback information.

8. The lighting system according to claim 2, wherein the driver specifically comprises: a power supply chip and an adjustable resistor;

the power supply chip comprises a dimming control pin, and the adjustable resistor is connected with the dimming control pin;

the adjustable resistor adjusts the resistance value according to the control signal, so that the voltage of the dimming control pin is changed, the pulse width of a pulse width modulation signal for driving and outputting an MOS (metal oxide semiconductor) switching tube in the power chip is changed, and the output current of the power chip to the controlled luminous body is changed.

9. The lighting system according to claim 2, wherein the driver specifically comprises: the device comprises a power supply chip, a pulse width modulation control chip and a pulse width modulation signal generating circuit;

the pulse width modulation control chip is connected with a pulse width modulation signal generating circuit, and the pulse width modulation signal generating circuit is connected with the power supply chip;

the pulse width modulation control chip controls and adjusts the pulse width of the pulse width modulation signal generated by the pulse width modulation signal generating circuit according to the control signal, and the power supply chip adjusts the output voltage of the controlled luminous body according to the pulse width.

10. The lighting system, as set forth in claim 2, wherein the controlled light emitter is one or more groups of silicon controlled light emitting diodes; the driver specifically includes: a silicon controlled dimmer;

the silicon controlled rectifier dimmer receives a control signal, and controls the conduction angle of the silicon controlled rectifier dimmer according to the control signal, so that the output voltage output to the silicon controlled rectifier light emitting diode is adjusted.

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