CN210402107U - Sun tracking type indoor lighting system - Google Patents

Abstract

The utility model discloses a sun tracking type indoor lighting system, which comprises a sun tracking device, a lighting area positioning device and a wireless transmission device; the sun tracking device comprises a photosensitive dark box group, a plane reflector, a supporting rotating table and a first single chip microcomputer; the plane reflector and the first single chip microcomputer are arranged on the supporting rotating table; daylighting district positioner includes: an ultrasonic receiver and an ultrasonic transmitting set; the ultrasonic emission group and the photosensitive dark box group are fixed below the supporting rotating table; the ultrasonic receiver comprises a second singlechip; the ultrasonic receiver is placed in the light collecting area; the ultrasonic receiver receives signals transmitted by the ultrasonic transmitting group; the second single chip microcomputer acquires relative position coordinates of the ultrasonic transmitting group and the ultrasonic receiver according to the received signals; the first single chip microcomputer and the second single chip microcomputer are connected through a wireless transmission device. The sun tracking type indoor lighting system has the characteristics of capability of accurately tracking the sun direction, easiness in installation and wide application range.

Description

Sun tracking type indoor lighting system

Technical Field

The utility model relates to a technical field is gathered in the illumination, especially relates to an indoor daylighting system of sun tracking formula.

Background

With the development of society, urban land is more and more tense, building height increases and interval is shrinking, and under the background, indoor lighting becomes a problem to be solved. Indoor lighting not only can influence quality of life, has also caused unnecessary wasting of resources simultaneously, and the energy that wastes because of the daylighting every year and the economic loss of resident family are all very huge. The electricity consumption for illumination in China accounts for ten percent of the total generated energy, and if sunlight is utilized, the problem of building lighting is solved, a large amount of energy is saved, and sustainable development is facilitated.

For indoor lighting technology, there are mainly a solar tracking optical fiber lighting system and a solar power generation lighting system. The principle of the optical fiber lighting system is as follows: the sunlight is focused into the optical fiber conduit through the light gathering device, and then the light is transmitted by the optical fiber conduit and finally passes through the scattering lens to achieve the purpose of indoor illumination, but the optical fiber illumination system has the following obvious disadvantages: 1) the mass of the light condensing device is large, so that the automatic tracking device is overloaded and cannot accurately track the direction of the sun; 2) the equipment is complex, the installation flexibility is low, and the device cannot adapt to variable application environments; 3) the light gathering device and the light guide optical fiber are expensive, and large-scale civil use is difficult to realize. The other solar power generation lighting system supplies power to an indoor lighting device by generating power through a solar panel, and is influenced by the energy conversion rate and the price of the solar panel, so that the system is low in energy utilization efficiency, high in price and not suitable for popularization and civil use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sun tracking formula indoor daylighting system has can the accurate sun position of pursuing, easily installs and application range wide characteristics.

In order to achieve the above object, the utility model provides a following scheme:

a sun tracking indoor lighting system comprising: the device comprises a sun tracking device, a lighting area positioning device and a wireless transmission device;

the sun tracking device comprises a photosensitive dark box group, a plane reflector, a supporting rotating table and a first single chip microcomputer; the plane reflecting mirror and the first single chip microcomputer are both arranged on the supporting rotating table; the photosensitive dark box group is electrically connected with the first single chip microcomputer; the ultrasonic emission group is electrically connected with the first singlechip; the first single chip microcomputer is electrically connected with a driving part of the supporting rotating table;

the lighting area positioning device comprises an ultrasonic receiver and an ultrasonic transmitting group; the ultrasonic receiver comprises a second singlechip; the ultrasonic receiver is placed in the light collecting area; the ultrasonic receiver receives signals transmitted by the ultrasonic transmitting set; the second single chip microcomputer is used for acquiring the relative position coordinates of the ultrasonic transmitting group and the ultrasonic receiver according to the received transmitting signal;

the first single chip microcomputer and the second single chip microcomputer are connected through the wireless transmission device.

Optionally, the photosensitive dark box group includes a first photosensitive dark box and a second photosensitive dark box;

the central axis of the first photosensitive dark box along the length direction is vertical to the central axis of the second photosensitive dark box along the length direction.

Optionally, the top of the first photosensitive dark box and the top of the second photosensitive dark box are both provided with light-transmitting narrow slits;

a plurality of rows of photoresistors are arranged at the bottom of the first photosensitive dark box and the bottom of the second photosensitive dark box;

and all the rows of the photoresistors are arranged along the length direction of the photosensitive dark box.

Optionally, distances between the photo resistors in each row of the photo resistors are different.

Optionally, the support rotating table comprises a support plate, a first support shaft, a second support shaft and a third support shaft; the driving part comprises a first motor and a second motor;

the second motor is fixed at the top end of the third supporting shaft; the axial direction of the output shaft of the second motor is vertical to the axial direction of the third support shaft;

an output shaft of the second motor is connected with the bottom end of the second supporting shaft; the axial direction of the output shaft of the second motor is vertical to the axial direction of the second support shaft;

the first motor is fixed at the top end of the second supporting shaft; an output shaft of the first motor is connected with the bottom end of the first support shaft; the axial direction of the first motor output shaft is respectively parallel to the axial direction of the first support shaft and the axial direction of the second support shaft;

the axial directions of the first support shaft, the second support shaft and the third support shaft are all parallel;

the supporting plate is fixed to the top end of the first supporting shaft.

Optionally, the photosensitive dark box group and the ultrasonic emission group are both arranged on the first support shaft.

Optionally, the wireless transmission device is an NRF24101 wireless communication device;

the data serial ports of the first single chip microcomputer and the second single chip microcomputer are connected with the NRF24101 wireless communication device.

Optionally, the sun tracking indoor lighting system further includes a solar panel for providing electric energy to the sun tracking indoor lighting system; the solar panel is arranged on the supporting rotating table.

According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect: the utility model discloses an indoor daylighting system of sun tracking formula, obtain the sun position earlier by the sensitization camera bellows, give the first singlechip among the sun tracer with sun angle information transmission, give the sun tracer with target position information transmission by daylighting district positioner again, the sun tracer calculates the angle of rotation of treating of speculum according to sun position information and target position information accuracy at last, it is rotatory by drive unit control plane speculum, the angle of rotation until the plane speculum is the angle of rotation of treating that corresponds till, thereby with sunlight accurate reflection to target position, provide the illumination for the target area. Just the utility model discloses an indoor daylighting system of sun tracking formula does not receive the restriction of use region and environment, directly through reflecting the sunlight for daylighting regional illumination, has the wide characteristics of application range.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a solar tracking indoor lighting system according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a photosensitive dark box set according to an embodiment of the present invention;

FIG. 3 is a rear view of the support turntable according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a solar azimuth detection circuit according to an embodiment of the present invention;

FIG. 5 is a schematic diagram illustrating the calculation of the spacing between the photo resistors in the four rows of the photo resistor array used in the light-sensitive dark box;

fig. 6 is a schematic diagram of a horizontal coordinate system according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an ultrasonic wave emitting group according to an embodiment of the present invention.

The reference signs are: 1-photosensitive camera bellows, 2-plane mirror, 3-supporting rotating table, 4-first single chip microcomputer, 5-ultrasonic receiver, 6-ultrasonic emission group, 7-solar panel, 11-first photosensitive camera bellows, 12-second photosensitive camera bellows, 13-photosensitive array, 14-light-passing narrow slit, 31-third supporting shaft, 32-second motor, 33-second supporting shaft, 34-first motor, 35-first supporting shaft, 36-supporting plate, 61-first ultrasonic emission source, 62-second ultrasonic emission source, 63-third ultrasonic emission source.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing a sun tracking formula indoor daylighting system has can the accurate sun position of pursuing, easily installs and application range wide characteristics.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Fig. 1 is a schematic structural view of a sun tracking type indoor lighting system according to an embodiment of the present invention, as shown in fig. 1, a sun tracking type indoor lighting system includes a sun tracking device, a lighting area positioning device, and a wireless transmission device;

the sun tracking device comprises a photosensitive dark box group 1, a plane reflector 2, a supporting rotating table 3 and a first single chip microcomputer 4; the plane reflecting mirror 2 and the first single chip microcomputer 4 are both arranged on the supporting rotating table 3; the photosensitive dark box group 1 is electrically connected with the first singlechip 4; the ultrasonic emission group 6 is electrically connected with the first singlechip 4; the first single chip microcomputer 4 is electrically connected with a driving part of the supporting rotating table 3;

the lighting area positioning device comprises an ultrasonic receiver 5 and an ultrasonic transmitting group 6; the ultrasonic receiver 5 comprises a second singlechip; the ultrasonic receiver 5 is placed in an area to be daylighted; the ultrasonic receiver 5 receives the signals transmitted by the ultrasonic transmitting set 6; the second single chip microcomputer is used for acquiring the relative position coordinates of the ultrasonic transmitting group 5 and the ultrasonic receiver 5 according to the received transmitting signal;

the first single chip microcomputer 4 is connected with the second single chip microcomputer through the wireless transmission device. Preferably, the wireless transmission device may be an NRF24101 wireless communication device. The frequency band of the adopted NRF24101 wireless communication device is 2.4 GHz-2.5 GHz. The working mode is pairing use. Therefore, the single chip microcomputer in the system of the utility model is connected with an NRF24101 wireless communication device.

Wherein the ultrasound receivers 5 may be arranged in each sub-area of the area to be lit. When a certain sub-area needs to be daylighted, only the ultrasonic receiver 5 corresponding to the sub-area needs to be turned on, and the sunlight can be emitted into the sub-area.

As shown in fig. 2, the photosensitive camera bellows group 1 includes a first photosensitive camera bellows 11 and a second photosensitive camera bellows 12; each light-sensitive dark box is 270mm long, 140mm wide and 36mm high. First sensitization camera bellows 11 and the adjacent setting of second sensitization camera bellows 12, just first sensitization camera bellows 11 along length direction's the central axis with second sensitization camera bellows 12 is perpendicular along length direction's the central axis. And the longer side of the first light sensing dark box 11 faces the true east direction and the longer side of the second light sensing dark box 12 faces the true north direction.

The top of the first photosensitive dark box 11 and the top of the second photosensitive dark box 12 are both provided with light-transmitting narrow slits 14; the light-transmitting slot 14 is preferably a 5mm rectangular opening through which the sun's rays enter the light-sensitive dark box assembly 1.

And photosensitive arrays 13 consisting of four rows of photosensitive resistors are arranged at the bottom of the first photosensitive dark box 11 and the bottom of the second photosensitive dark box 12 along the length direction. And each column of photosensitive array 13 is placed 5mm from both ends of the photosensitive dark box. Each photosensitive array 13 has 31 photosensitive resistors GL5537 with the specification of 5mm, and the distances among the photosensitive resistors are different.

As shown in fig. 3, the support turn table 3 includes a support plate 36, a first support shaft 35, a second support shaft 33, and a third support shaft 31; the drive components include a first motor 34 and a second motor 32;

the second motor 32 is fixed at the top end of the third supporting shaft 31; the axial direction of the output shaft of the second motor 32 is vertical to the axial direction of the third supporting shaft 31;

an output shaft of the second motor 32 is connected with the bottom end of the second supporting shaft 33; the axial direction of the output shaft of the second motor 32 is vertical to the axial direction of the second supporting shaft 33;

the first motor 34 is fixed at the top end of the second supporting shaft 33; an output shaft of the first motor 34 is connected with the bottom end of the first support shaft 35; the axial direction of the output shaft of the first motor 34 is parallel to the axial direction of the first support shaft 35 and the axial direction of the second support shaft 33, respectively;

the axial directions of the first support shaft 35, the second support shaft 33 and the third support shaft 31 are all parallel;

the support plate 36 is fixed to the top end of the first support shaft 35.

The photosensitive dark box group 1 and the ultrasonic emission group 6 are both arranged on the third support shaft 31.

The wireless transmission device is an NRF24101 wireless communication device;

the data serial ports of the first single chip microcomputer 4 and the second single chip microcomputer are connected with the NRF24101 wireless communication device.

The utility model discloses a sun-tracking indoor lighting system, which also comprises a solar panel 7 used for providing electric energy for the sun-tracking indoor lighting system; the solar panel 7 is arranged on the support rotating table 3. Wherein, the size of the solar panel 7 is 980 x 360mm, the maximum power is 20W, and the maximum voltage is 18V. The solar panel 7 is adhered to a support made of a thin wooden board or metal. For more accurate reflection of sunlight, the ratio of the area of the plane mirror 2 to the area of the solar panel 7 is preferably set to 7: 3.

An energy storage device is also arranged in the sun tracking type indoor lighting system. The energy storage device is a 12V and 5AH storage battery. A buck-boost circuit is arranged between the energy storage device and the solar panel 7, the buck-boost circuit adopts a cn3722 power management chip, and the voltage output by the solar panel 7 is stabilized at 12.5V to supply power for the battery. The battery is connected with other devices through a lead to provide required electric energy for the whole system. In addition, diodes are provided in the connection paths of the solar panel 7 and the energy storage device. The diodes are arranged to ensure that no current is supplied to the solar panels 7 during the night.

Further, for the angle information of accurate acquisition plane mirror 2 the utility model discloses a solar tracking device of indoor daylighting system of sun tracking formula can also be provided with triaxial accelerometer MPU 6050. The adopted accelerometer is attached to the back surface of the plane mirror 2, and the horizontal center line of the accelerometer is parallel to the horizontal center line of the adopted plane mirror 2.

The principle of the adopted accelerometer for acquiring the angle information of the plane mirror is as follows: the gravity direction of the earth always points to the geocentric vertically, when the vertical center line of the accelerometer is different from the gravity direction, the accelerometer can output component values of gravity on three mutually vertical planes of the accelerometer, and the first single chip microcomputer can obtain altitude angle information of the plane mirror through the three component values. When the plane mirror rotates on a horizontal plane, acceleration and angular velocity in the horizontal direction can be generated, and the first single chip microcomputer can obtain azimuth angle information of the plane mirror through detecting the acceleration and the angular velocity in the horizontal direction and calculating.

The utility model discloses a solar tracking formula indoor daylighting system's theory of operation does:

the light-sensitive dark box group 1 in the sun tracking device inputs the collected sunlight angle to the first single chip microcomputer 4, and the first single chip microcomputer 4 obtains the azimuth information of the sun through calculation (when the azimuth of the sun is collected, detection circuits between the photoresistors and the first single chip microcomputer 4 are shown in fig. 4). And the second singlechip in the lighting area positioning device obtains the position information of the ultrasonic receiver 5 (lighting area) through calculation. The second singlechip transmits the acquired lighting area position information to the first singlechip 4 through a wireless transmission device. The first single chip microcomputer 4 calculates the angle to be twisted of the plane mirror 2 according to the sun azimuth information acquired by the sun tracking device, and then controls the first motor 34 to rotate; the first single chip microcomputer 4 calculates the angle to be tilted of the plane mirror 2 according to the azimuth information of the area to be daylighted acquired by the daylighting area positioning device, and then controls the second motor 32 to rotate. The rotation angle of the first motor and the rotation angle of the second motor are controlled through the first single chip microcomputer 4, so that the plane reflecting mirror 2 rotates to the torsion angle and the pitching angle which are calculated by the first single chip microcomputer 4, and sunlight is reflected to an area to be daylighted.

Specifically, the photosensitive dark box set 1 is used for detecting 360 degrees of solar azimuth angle and 15 degrees to 165 degrees of solar altitude angle, wherein the interval of altitude angle detection is 5 degrees. The calculation method when the photosensitive dark box group 1 is used for detection is shown in fig. 5: take the sun's azimuth angle as 180 degrees and the elevation angle as 85 degrees and 15 degrees, respectively, as an example: when the solar altitude is 85 degrees, the distance from the intersection point of the light ray and the bottom surface of the photosensitive dark box to the vertical central line of the light-transmitting gap is 36/tan85 which is 3.2 mm. When the sun angle is 15 degrees, the distance from the intersection point of the light ray and the bottom surface of the dark box to the vertical central line of the light-passing slit is 36/tan 15-135 mm. The distances from the rest photoresistors to the central line can be obtained by the same calculation method. The inner wall of the photosensitive dark box is painted with black non-reflective paint to prevent sunlight from reflecting in the dark box to influence the accuracy of the sun angle measurement.

The principle of the adopted photosensitive dark box group for detecting the sun angle is as follows: the sunray is parallel light, can form a width at two camera bellows bottoms after the light passes through logical light gap and be 5 mm's rectangle bright spot, and the bright spot can shine and make its resistance reduce on the sensitization array 13 of bottom, just can obtain the distance of facula distance each sensitization camera bellows central line through detecting each photo resistance's change. Since the longer side of the first photosensitive dark box 11 faces the east direction and the longer side of the second photosensitive dark box 12 faces the north direction, the solar azimuth angle can be derived from the distance value from the two bright spots to the central line of the corresponding dark box.

The derived calculation principle is as follows: as shown in FIG. 5, assume that the distance from the bright spot line formed on the second light-sensing dark box 12 in the north-south direction by the sun at a certain time to the central line thereof is A₁The distance from the bright spot line formed by the sun facing the dark box to the central line of the first photosensitive dark box 11 is B₁Then azimuth angle of sun theta₁Can be obtained by the following formula:

θ₁＝arctan(A₁/B₁)+π

wherein A is₁The value is positive in the north direction, negative in the south direction, B₁The values are positive in the east direction and negative in the west direction of the centerline. According to the geometrical principle, the projection length is proportional to its original length, with the same object height. For a photosensitive dark box group, the height of the photosensitive dark box group is 36mm, and the comprehensive projection length of an object with the height on a plane is

According to the principle, the height of the photosensitive dark box and the comprehensive projection length are known, and the sun can be obtainedHeight angle theta₂Comprises the following steps:

the specific irradiation position of the sun is obtained through the method, the accuracy is 5 degrees because each row of photosensitive arrays 13 adopt 31 photosensitive resistors to detect the sun angle information of 15-165 degrees, the accuracy requirement is completely met, compared with the traditional array type sun tracking device, the accuracy is high, the number of the used photosensitive resistors is greatly reduced, and the design and installation difficulty of a circuit is simplified.

Consider when the sun non-normal incidence advances the sensitization dark box group, bright spot in the sensitization dark box group can be partial to one side, only one side can receive in the sensitization dark box to cause, so the scheme of using single-row sensitization array has been eliminated, photo resistance has all been installed to both sides in each sensitization dark box, because the height of each sensitization dark box is 36mm, the width is 140mm, when the sun height degree is greater than 15 degrees, bright spot just can be projected on the sensitization dark box bottom surface, so the utility model discloses an effective detection range is 15 to 165 degrees, can work 10 hours within a day, satisfies daily daylighting needs.

The horizon coordinate system is a spatial polar coordinate system, and in the embodiment of the present invention, the horizon coordinate system is constructed by using the lower right corner of the second ultrasonic emission source 62 as the origin of coordinates, the east direction is the positive polar direction on the horizontal plane, and the gravity direction is the negative polar direction on the vertical plane, the constructed horizon coordinate system is as shown in fig. 6, the position of any point in the space can be described by the point formed by the horizontal corner α and the vertical corner β, wherein the horizontal corner α of the object is referred to as the azimuth angle of the object, and the vertical corner β is referred to as the elevation angle, the coordinates of the ultrasonic emission group 6 in the embodiment of the present invention are (0, 0), i.e., α ═ 0, β ═ 0, since the ultrasonic emission group 6 is vertically placed below the central line of the plane mirror 2 (on the first support shaft 33), and the distance between the two is relatively small from the lighting area, so the coordinates of the plane mirror 2 are also approximately regarded as (0, 0).

In the process of positioning the lighting area, the ultrasonic emission group 6 is placed in the east-west direction, wherein the azimuth angle and the elevation angle of the plane reflector 2 are both 0 degree, the angle of the sun is measured by the photosensitive dark box group 1, and the azimuth information of the area to be lighted is obtained by the ultrasonic emission group 6, the ultrasonic receiver 5 and the second single chip microcomputer. As shown in fig. 7: the measurement principle is as follows:

azimuth angle theta of ultrasonic receiver₃The method of finding is as follows:

where B is the distance between the ultrasonic receiver 5 and the second ultrasonic wave emitting source 62, A is the distance between the ultrasonic receiver 5 and the first ultrasonic wave emitting source 61, and L₁₂Is the distance between the first and second ultrasonic wave emitting sources, theta₃Is the azimuth angle of the daylighting area.

Elevation angle theta of ultrasonic receiver₄The method of finding is as follows:

where C is the distance between the ultrasonic receiver 5 and the third ultrasonic wave emitting source 63, and L is₂₃Is the distance between the second and third ultrasonic wave emitting sources, theta₄Is the height angle of the lighting area.

After obtaining the angle information of the area to be daylighted, the first single chip microcomputer 4 further calculates the angle to be rotated of the plane reflector 2 according to the sun angle information, and the specific calculation process is as follows:

suppose that the azimuth angle of the sunlight measured by the light-sensitive dark box set 1 in a certain measurement is α₁Height angle of α₂It is intended to be reflected to an altitude of β₁Azimuth angle of β₂In the area to be lit, the elevation angle γ of the reflecting plane mirror 2₁Comprises the following steps:

γ₁＝(α₁+β₂)/2+π/2；

azimuth angle gamma of the reflecting plane mirror 2₂Comprises the following steps:

γ₂＝(α₂+β₁)/2+π/2。

then the first singlechip 4 controls the motor to move to enable the rotation angle of the plane reflector 2 to reach the calculated altitude angle gamma₁And an azimuth angle gamma₂The sunlight can be reflected to the area to be daylighted.

Based on the above, the whole workflow of the sun tracking indoor lighting system disclosed by the present invention can be briefly summarized as follows:

firstly, a horizontal-polar coordinate system is adopted to construct a unified coordinate system of the sun tracking device and the lighting area positioning device: the second ultrasonic source 62 in the ultrasonic transmitting set 6 is used as a pole, the east-pointing direction is used as the positive polar direction to describe the azimuth angle of the object, and the gravity direction is used as the positive polar direction on the vertical plane to describe the altitude angle of the object. Before using the system for lighting, the user needs to place the ultrasonic receiver 5 at the place where lighting is needed. After the ultrasonic receiver 5 is started, namely, the object to be positioned is positioned, the system automatically starts to work, measures the azimuth angle and the altitude angle of the ultrasonic receiver 5 by utilizing the ultrasonic space positioning principle, and then sends the azimuth angle to the sun tracking device.

After the first single chip microcomputer 4 starts to read the sun angle information measured in the photosensitive dark box group 1 and calculates the angle which the plane mirror 2 needs to reach, the first single chip microcomputer 4 controls the driving part to drive, and the plane mirror 2 moves under the driving of the driving part. At this time, the first single chip microcomputer 4 detects the angle information of the plane mirror 2 in real time, and the system stops operating when the angle value of the plane mirror 2 reaches the value calculated by the first single chip microcomputer 4. After the plane reflector 2 reaches a preset angle, the first single chip microcomputer 4 reads the sun angle information measured by the photosensitive dark box at regular time, and when the sun angle changes, the first single chip microcomputer 4 controls the plane reflector 2 to move again to reach a new reflection angle to provide illumination for the room.

The utility model provides an indoor daylighting system of formula is tracked to sun has following advantage:

in the solar azimuth measuring process, a pair of mutually perpendicular photosensitive dark boxes are used for respectively detecting components of the solar azimuth in the east direction and the north direction, and then the azimuth angle and the elevation angle of the sun are obtained through the vector sum of the components. Compared with the traditional solar tracking mode of a photoresistor array, the solar tracking mode uses less photoresistors under the same precision, greatly simplifies the design of a circuit and enables the installation and the use to be simpler, more convenient and more reliable.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (8)

1. A sun tracking type indoor lighting system is characterized by comprising a sun tracking device, a lighting area positioning device and a wireless transmission device;

the sun tracking device comprises a photosensitive dark box group (1), a plane reflector (2), a supporting rotating table (3) and a first single chip microcomputer (4); the plane reflecting mirror (2) and the first single chip microcomputer (4) are arranged on the supporting rotating table (3); the photosensitive dark box group (1) is electrically connected with the first singlechip (4); the first single chip microcomputer (4) is electrically connected with a driving part of the supporting rotating table (3);

the lighting area positioning device comprises an ultrasonic receiver (5) and an ultrasonic transmitting group (6); the ultrasonic receiver (5) comprises a second singlechip; the ultrasonic receiver (5) is placed in the region to be mined; the ultrasonic receiver (5) receives the signals transmitted by the ultrasonic transmitting group (6); the ultrasonic emission group (6) is electrically connected with the first singlechip (4); the second single chip microcomputer is used for acquiring the relative position coordinates of the ultrasonic receiver (5) and the ultrasonic transmitting group (6) according to the received transmitting signals;

the first single chip microcomputer (4) is connected with the second single chip microcomputer through the wireless transmission device.

2. A sun tracking indoor light collecting system according to claim 1, wherein said light sensitive camera bellows (1) comprises a first light sensitive camera bellows (11) and a second light sensitive camera bellows (12);

the central axis of the first photosensitive dark box (11) along the length direction is vertical to the central axis of the second photosensitive dark box (12) along the length direction.

3. A sun tracking indoor lighting system according to claim 2, wherein the top of the first photosensitive dark box (11) and the top of the second photosensitive dark box (12) are both provided with a light passing narrow slit (14); the bottom of the first photosensitive dark box (11) and the bottom of the second photosensitive dark box (12) are both provided with a plurality of rows of photosensitive resistors;

each row of the photoresistors is arranged along the length direction of the photosensitive dark box.

4. The sun tracking indoor lighting system according to claim 3, wherein the distances between adjacent ones of the photo resistors in each row are different.

5. A sun tracking indoor lighting system according to claim 1, wherein said support rotating table (3) comprises a support plate (36), a first support shaft (35), a second support shaft (33) and a third support shaft (31); the drive means comprises a first motor (34) and a second motor (32);

the second motor (32) is fixed at the top end of the third supporting shaft (31); the axial direction of the output shaft of the second motor (32) is vertical to the axial direction of the third support shaft (31);

the output shaft of the second motor (32) is connected with the bottom end of the second supporting shaft (33); the axial direction of the output shaft of the second motor (32) is vertical to the axial direction of the second support shaft (33);

the first motor (34) is fixed at the top end of the second supporting shaft (33); an output shaft of the first motor (34) is connected with the bottom end of the first support shaft (35); the axial direction of the output shaft of the first motor (34) is respectively parallel to the axial direction of the first support shaft (35) and the axial direction of the second support shaft (33);

the axial directions of the first support shaft (35), the second support shaft (33) and the third support shaft (31) are all parallel;

the supporting plate (36) is fixed to the top end of the first supporting shaft (35).

6. A sun tracking indoor light collecting system according to claim 5, wherein said photosensitive dark box set (1) and said ultrasonic wave emitting set (6) are both arranged on said third supporting shaft (31).

7. The sun tracking indoor lighting system according to claim 1, wherein the wireless transmission device is an NRF24101 wireless communication device;

the NRF24101 wireless communication devices are connected to the data serial ports of the first single chip microcomputer (4) and the second single chip microcomputer respectively.

8. A sun tracking indoor lighting system according to claim 1, further comprising a solar panel (7) for providing electrical power to said sun tracking indoor lighting system; the solar panel (7) is arranged on the supporting rotating table (3).

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