Concave surface curtain wall building square light focusing and utilizing system

Abstract

The invention relates to a concave surface curtain wall building square light focusing utilization system which comprises a solar radiation tracking analysis system, a mobile vehicle body and a control system. The solar radiation tracking analysis system is used for determining the strongest heat radiation area; a photovoltaic module and a photo-thermal module are arranged at the top of the mobile vehicle body; the control system controls the mobile vehicle body to move to the strongest radiation area in time according to the position and the change rule of the strongest light and the heat radiation area. According to the invention, the most heat radiation area (several times to dozens of times higher than a common area) formed by reflecting and focusing sunlight by the concave curtain wall can be monitored in real time, and the mobile vehicle body can be moved to the strongest radiation area on the square in time according to the monitoring result, so that the photovoltaic module and the photo-thermal module on the mobile vehicle body can receive the strongest radiation; meanwhile, the high-strength radiation can be prevented from directly acting on the square ground, the situation that the local temperature of a square is too high, and consequently materials of the square are damaged is prevented, and the fire risk is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of solar energy utilization devices, and particularly relates to a light focusing utilization system for a concave curtain wall building square. Background Art

[0002] In special building forms such as concave curtain walls, the sunlight reflected by the curtain wall will be focused within a certain area, resulting in the local light and heat radiation intensity within this area may increase by several times to dozens of times, significantly higher than the surrounding environment, and the local temperature rises rapidly. The long-term heat focusing phenomenon may cause serious impacts on people and objects in the square area, and may even trigger safety accidents such as fires. Existing technologies usually have difficulty effectively monitoring the degree of thermal damage of building materials and lack an immediate warning and intervention mechanism. For example, when a certain part of a building is exposed to strong thermal radiation, existing monitoring systems often cannot detect problems at an early stage and take corresponding protective measures, thus increasing the risk of thermal damage to the building.

[0003] CN201710252226.4 discloses an integrated application system of a focused solar energy building curtain wall, and CN201210023806.3 discloses a solar collector with a parabolic reflector for building integrated external shading that tracks the sun. By setting the building surface as a concave surface with a light concentrating effect and arranging solar heat collecting tubes on the concave surface, solar energy can be fully utilized. However, this method has the following defects:

[0004] 1. The heat collecting equipment is set on the building surface, which is difficult to construct. Especially when the building is relatively high, high-altitude operation is required during the construction of the heat collecting equipment, with high costs and inconvenient later maintenance.

[0005] 2. It can only be used for newly built concave curtain walls and cannot solve the defect that the reflected light of existing concave curtain walls gathers to cause excessive local temperature in the square.

[0006] In addition to the above-mentioned solar energy utilization facilities, there are also various photovoltaic devices and solar thermal devices. These devices can adjust the angles of the heat collecting elements or photovoltaic panels according to the irradiation angle of the sun rays, but they are fixedly installed as a whole and cannot move. And in different seasons, the position of the heat concentrating area formed by the sunlight reflected by the concave curtain wall is changing. Therefore, conventional photovoltaic devices and solar thermal devices cannot solve the problem of excessive local temperature in the square caused by the heat concentrating effect of the concave curtain wall. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a light focusing utilization system for a concave curtain wall building square, which can make full use of the sunlight reflected and focused by the concave curtain wall, and can move flexibly with the change of the heat concentrating area, prevent the square from being damaged due to excessive local temperature, and reduce the fire risk.

[0008] To solve the above problems, the technical solution adopted by the present invention is: a light focusing utilization system for a concave curtain wall building square, comprising a solar radiation tracking and analysis system, a mobile vehicle body, and a control system;

[0009] The solar radiation tracking and analysis system is used to determine the position and variation law of the strongest radiation area formed by the reflection and focusing of sunlight by the concave curtain wall building on the square;

[0010] The top of the mobile vehicle body is provided with a photovoltaic module, a solar thermal module, and a cooling module for cooling the photovoltaic module;

[0011] Both the solar radiation tracking and analysis system and the mobile vehicle body are connected to the control system. The control system controls the mobile vehicle body to move to the strongest radiation area in a timely manner according to the position and variation law of the strongest radiation area.

[0012] Further, the solar radiation tracking and analysis system includes an infrared imager, which is used to capture the thermal radiation image of the square area to obtain the temperature distribution of different areas of the square.

[0013] Further, a plurality of mutually parallel first reference lines and a plurality of mutually parallel second reference lines are arranged on the square. The first reference lines are perpendicular to the second reference lines, and the second reference lines form a reference grid. A first mark is arranged on each first reference line, and a second mark is arranged on each second reference line. An identification mechanism for identifying the first mark and the second mark is arranged on the mobile vehicle body.

[0014] Further, the first mark is a number, the second mark is a letter, and the identification mechanism is a camera element.

[0015] Further, 4 vertical lifting struts are arranged on the mobile vehicle body. The top of the lifting strut is hinged with a support frame. The photovoltaic module is fixedly arranged on the support frame. The support frame is provided with a temperature detection element for detecting the temperature of the photovoltaic module; the solar thermal module includes a solar collector. The lower surface of the solar collector is fixedly provided with a first heat exchange box. An insulating layer is arranged between the first heat exchange box and the solar collector. One end of the first heat exchange box is connected with a first cold water pipe, and the other end is communicated with the water inlet of the solar collector. The water outlet of the solar collector is connected with a hot water discharge pipe; the solar collector is located above the photovoltaic module and is slidably matched with the support frame. The lower surface of the first heat exchange box can contact the upper surface of the photovoltaic module. The solar collector is connected with a driving mechanism for driving the solar collector to slide.

[0016] Further, a second heat exchange box is arranged on the lower surface of the photovoltaic module. One end of the second heat exchange box is provided with a first cold water pipe, and the other end is connected to the first cold water pipe.

[0017] Furthermore, a connecting ball is provided at the top of the lifting strut, and a spherical groove is provided at the edge of the lower surface of the support frame. The connecting ball is located in the spherical groove and is in clearance fit with the spherical groove.

[0018] Furthermore, guide rails are provided on both sides of the support frame, and sliding seats that are slidably engaged with the guide rails are provided on the guide rails. The sliding seats are fixedly connected to the solar collector; the driving mechanism includes a motor, and the motor is connected to a lead screw. The lead screw passes through the sliding seat and is in threaded fit with the sliding seat.

[0019] The beneficial effects of the present invention are as follows: During the day, the angle at which the sun's rays irradiate the concave curtain wall is constantly changing. Therefore, the strongest radiation area formed by the reflection and focusing of the concave curtain wall is also constantly moving. The present invention can monitor in real time the strongest radiation area formed by the reflection and focusing of the concave curtain wall, and timely move the mobile vehicle body to the strongest radiation area on the square according to the monitoring results, so that the photovoltaic modules and solar thermal modules on the mobile vehicle body can receive the strongest radiation, and convert solar energy into electrical energy or heat energy, realizing the effective utilization of high-intensity radiation. At the same time, after the photovoltaic modules and solar thermal modules absorb the high-intensity radiation, it is possible to prevent the high-intensity radiation from directly acting on the square ground, prevent local overheating of the square and cause damage to the square materials, and reduce the fire risk. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the present invention;

[0021] Figure 2 is a top view schematic diagram of the present invention;

[0022] Figure 3 is a side view schematic diagram of the mobile vehicle body;

[0023] Figure 4 is a top view schematic diagram of the support frame;

[0024] Figure 5 is Figure 4 the cross-sectional view taken along A-A in

[0025] Figure 6 is the connection schematic diagram of the lifting strut and the support frame;

[0026] Reference numerals: 1 - moving vehicle body; 2 - photovoltaic module; 3 - solar thermal module; 31 - solar collector; 32 - first heat exchange tank; 33 - heat insulation layer; 34 - first cold water pipe; 35 - hot water discharge pipe; 4 - infrared imager; 5 - first reference line; 6 - second reference line; 7 - first mark; 8 - second mark; 9 - identification mechanism; 10 - lifting strut; 11 - support frame; 12 - temperature detection element; 13 - second heat exchange tank; 14 - second cold water pipe; 15 - connecting ball; 16 - motor; 17 - lead screw; 18 - guide rail; 19 - sliding seat; 20 - support rod; 21 - positioning ball; 22 - control system; 100 - concave curtain wall; 200 - square. Detailed implementation mode

[0027] The present invention will be further described below with reference to the drawings and embodiments.

[0028] The light focusing utilization system for the concave curtain wall building square of the present invention, as Figure 1 shown, includes a solar radiation tracking and analysis system, a moving vehicle body 1, and a control system 22.

[0029] Among them, the solar radiation tracking and analysis system is used to determine the position and change law of the strongest radiation area formed by the reflected and focused sunlight of the concave curtain wall building on the square, so as to find the strong radiation area on the square 200 for the utilization of sunlight radiation. In the present invention, the judgment criterion for the strongest radiation area is: the area where the radiation intensity is significantly higher than other areas of the square 200. There are three types of radiation that the square 200 may receive. The first type is only directly irradiated by sunlight, the second type is only irradiated by the reflected light of the concave curtain wall 100, and the third type is irradiated by both direct sunlight and the reflected light of the concave curtain wall 100.

[0030] The moving vehicle body 1 is a vehicle that can move freely, and various existing robots or vehicle body structures that can move automatically can be used. The top of the moving vehicle body 1 is provided with a photovoltaic module 2, a solar thermal module 3, and a cooling module for cooling the photovoltaic module 2. The photovoltaic module 2 can convert solar energy into electrical energy and supply power to surrounding electrical equipment. The solar thermal module 3 can convert solar energy into heat energy, heat cold water, and provide hot water to surrounding buildings. The present invention combines the photovoltaic module 2 and the solar thermal module 3 to make full use of solar energy. Since the temperature of the solar thermal module 3 will also increase after being irradiated for a long time during operation, and the increase in temperature will affect the conversion efficiency of light energy to electrical energy, a cooling module is provided. The cooling module can reduce the temperature of the photovoltaic module 2 itself, which is beneficial to ensuring the photoelectric conversion efficiency.

[0031] The solar radiation tracking and analysis system and the mobile vehicle body 1 are both connected to the control system 22. The control system 22 controls the mobile vehicle body 1 to move to the strongest radiation area according to the position and variation law of the strongest radiation area. The solar radiation tracking and analysis system transmits the detection data to the control system 22, and the control system 22 determines the position of the strong radiation area according to the detection data, and then controls the mobile vehicle body 1 to move to the strongest radiation area to ensure that the mobile vehicle body 1 can accurately cover the strongest radiation area. The photovoltaic module 2 and the solar thermal module 3 receive the sunlight directly and the light reflected by the concave curtain wall 100 to realize the utilization of solar energy.

[0032] The present invention can monitor the radiation intensity received by each area of the square 200 in real time, flexibly adjust the position of the mobile vehicle body 1 to ensure that the mobile vehicle body 1 is always in the strongest radiation area, improve the power generation of the photovoltaic module 2 and the hot water supply of the solar thermal module 3, and at the same time avoid the direct action of the light reflected by the concave curtain wall 100 on the ground of the square 200, resulting in too high local temperature of the ground of the square 200, preventing damage to the ground materials of the square 200 and reducing the fire risk.

[0033] The solar radiation tracking and analysis system can adopt components such as light sensors, but the light sensors can only detect the local light intensity. In order to realize the large-scale monitoring of the square 200, the solar radiation tracking and analysis system of the present invention specifically includes an infrared imager 4. The infrared imager 4 is used to capture the thermal radiation images of each area of the square 200 to obtain the temperature distribution of different areas of the square 200. The infrared imager 4 can be installed on the buildings around the square 200 at a suitable height, with a wide detection area. One to four infrared imagers 4 are set around each square 200 to monitor the entire square 200, and remote monitoring can be realized. The infrared imager 4 can obtain the infrared images within the monitoring range. According to the infrared images of the square 200, the area with the highest ground temperature in the monitoring area can be determined, and the area with a significantly higher temperature than the surrounding area can be used as the strongest radiation area.

[0034] In order to facilitate the stable movement of the mobile vehicle body 1 to the strongest radiation area, the mobile vehicle body 1 can be installed on a pair of transverse tracks. The mobile vehicle body 1 can move along the transverse tracks. The two ends of the transverse tracks are installed on the longitudinal tracks, and the longitudinal tracks are fixed on the ground and perpendicular to the transverse tracks. The transverse tracks are connected with a displacement driving mechanism for driving the transverse tracks to move along the longitudinal tracks. This method requires track construction, which damages the ground of the square 200, has a high construction cost, and the tracks will occupy a large area of the square 200. In addition, due to the large area of the square 200, it is difficult to accurately calculate the relative position between the mobile vehicle body 1 and the strongest radiation area without reference, and it is difficult for the mobile vehicle body 1 to accurately and quickly move to the strongest radiation area.

[0035] Such asFigure 2 As shown in the figure, in the present invention, a plurality of mutually parallel first reference lines 5 and a plurality of mutually parallel second reference lines 6 are arranged on the square 200. The first reference lines 5 are perpendicular to the second reference lines 6, and the second reference lines 6 form a reference grid. The distance between adjacent first reference lines 5 is the same, and the distance between adjacent second reference lines 6 is the same. A first mark 7 is arranged on each first reference line 5, a second mark 8 is arranged on each second reference line 6, and an identification mechanism 9 for identifying the first mark 7 and the second mark 8 is arranged on the moving vehicle body 1.

[0036] The first marks 7 on different first reference lines 5 are different, and the second marks 8 on different second reference lines 6 are different, so that each first reference line 5 and each second reference line 6 are unique reference lines. Specifically, the first reference line 5 and the second reference line 6 can adopt plastic films with a certain width or paste the plastic films on the ground; or use pigments to draw lines on the ground to obtain the first reference line 5 and the second reference line 6. The construction is simple, the cost is low, it will not damage the ground, and it will not interfere with the normal walking of pedestrians. The first mark 7 and the second mark 8 can adopt sequentially arranged identifiers. For example, the first mark 7 is a number and the second mark 8 is a letter. Starting from 1, each first reference line 5 can be sequentially marked as 1, 2, 3..., and starting from A, each second reference line 6 can be sequentially marked as A, B, C, D.... The first mark 7 and the second mark 8 can be printed or painted on the first reference line 5 and the second reference line 6, and the colors of the first mark 7 and the second mark 8 are different from the colors of the first reference line 5 and the second reference line 6. The identification mechanism 9 can adopt a camera element, which can quickly identify the marks on the first reference line 5 and the second reference line 6. There can be multiple identification mechanisms 9, which are arranged at the edge positions of the front, rear, left, and right sides of the moving vehicle body 1. According to the identification result, the coordinates of the moving vehicle body 1 are judged. For example, the identification mechanism 9 identifies that the moving vehicle body 1 is between the first reference lines 5 marked as 3 and 4 and is also between the second reference lines 6 marked as C and D. At this time, the position of the moving vehicle body 1 in the reference grid is determined. When installing the infrared imager 4, a camera can be installed at the same time. The shooting range and angle of the camera are the same as the imaging range and angle of the infrared imager 4. In this way, a photo of the square 200 can be obtained while obtaining the infrared image. The photo of the square 200 includes the first reference line 5 and the second reference line 6. By overlapping the infrared image and the photo of the square 200, the position of the strongest radiation area in the reference grid can be determined. The identification mechanism 9 and the camera are both connected to the control system 22. After transmitting the signals to the control system 22, the control system 22 processes them, and according to the strongest radiation area and the position of the moving vehicle body 1 in the reference grid, it plans the walking route of the moving vehicle body 1, so that the moving vehicle body 1 can move quickly and accurately to the strongest radiation area.

[0037] In order to further improve the utilization rate of sunlight by the photovoltaic module 2 and the solar thermal module 3, as Figures 3 to 5 shown, there are 4 vertical lifting struts 10 arranged on the moving vehicle body 1. The top of the lifting strut 10 is hinged with a support frame 11. The support frame 11 adopts a rectangular bracket, and the 4 lifting struts 10 are located at the 4 right angles of the rectangular bracket. The lifting strut 10 can adopt various existing telescopic columns. For example, it can include a fixed sleeve. The lower end of the fixed sleeve is fixed on the moving vehicle body 1. An active column that is slidably matched with the fixed sleeve is arranged inside the fixed sleeve. The lower end of the active column is connected with a telescopic mechanism such as a hydraulic cylinder, which can push the active column to move up and down. By adjusting the height of each lifting strut 10, the support frame 11 can have different angles. The photovoltaic module 2 and the solar thermal module 3 are installed on the support frame 11. Furthermore, the angles of the photovoltaic module 2 and the solar thermal module 3 can be adjusted so that the photovoltaic module 2 and the solar thermal module 3 can better receive radiation. Specifically, when there is a concave curtain wall radiation aggregation area, the concave curtain wall has a good energy gathering effect and mainly receives the sunlight reflected by the concave curtain wall. At this time, the photovoltaic module 2 and the solar thermal module 3 are perpendicular to the reflected light of the concave curtain wall, as Figure 1 shown; when the concave curtain wall does not reflect sunlight (for example, when the sun is behind the building) and there is only direct sunlight, the angles of the photovoltaic module 2 and the solar thermal module 3 are adjusted so that the photovoltaic module 2 and the solar thermal module 3 are perpendicular to the direction of direct sunlight.

[0038] Specifically, as Figure 6 shown, a connecting ball 15 is arranged at the top of the lifting strut 10. A spherical groove is arranged at the edge of the lower surface of the support frame 11. The connecting ball 15 is located in the spherical groove and is in clearance fit with the spherical groove. Each connecting ball 15 is fixedly arranged at the upper end of a support rod 20. The lower end of the support rod 20 is fixedly provided with a positioning ball 21. A spherical positioning groove is arranged at the top of the lifting strut 10. The positioning ball 21 is located in the positioning groove and is in clearance fit with the positioning groove. The connecting ball 15 and the spherical groove adopt a spherical surface fit, and the positioning ball 21 and the positioning groove also adopt a spherical surface fit, so that the support rod 20 can rotate in any direction. When adjusting the height of the lifting strut 10, the angle of the support frame 11 changes, and each support rod 20 can rotate adaptively to meet the angle adjustment requirements of the support frame 11. And the 4 support rods 20 can stably support the support frame 11.

[0039] In the present invention, the cooling component can adopt common technologies such as fans and water cooling facilities, but these facilities usually cool the back surface of the photovoltaic module 2, with low cooling efficiency and poor effect.

[0040] In order to ensure the cooling effect, as Figures 3 to 5As shown in the figure, the photovoltaic module 2 is fixedly arranged on the support frame 11. The support frame 11 is provided with a temperature detection element 12 for detecting the temperature of the photovoltaic module 2. The temperature detection element 12 can detect the temperatures of various parts of the photovoltaic module 2, and specifically, a thermal infrared imaging device can be adopted. The solar thermal module 3 includes a solar collector 31, and the solar collector 31 can adopt the existing technology, such as a flat-plate collector. The lower surface of the solar collector 31 is fixedly provided with a first heat exchange box 32. The first heat exchange box 32 can adopt an aluminum alloy box body, which has a relatively high thermal conductivity and a relatively thin overall thickness. An insulating layer 33 is arranged between the first heat exchange box 32 and the solar collector 31. One end of the first heat exchange box 32 is connected with a first cold water pipe 34, and the other end is communicated with the water inlet of the solar collector 31. The water outlet of the solar collector 31 is connected with a hot water discharge pipe 35; the solar collector 31 is located above the photovoltaic module 2 and is slidably matched with the support frame 11. The lower surface of the first heat exchange box 32 can be in contact with the upper surface of the photovoltaic module 2. The solar collector 31 is connected with a driving mechanism for driving the solar collector 31 to slide. The insulating layer 33 can block the heat exchange between the first heat exchange box 32 and the solar collector 31, prevent the temperature of the cold water in the first heat exchange box 32 from rising rapidly, and at the same time prevent the temperature of the hot water in the solar collector 31 from decreasing.

[0041] The working process of the present invention is as follows: Cold water enters the first heat exchange box 32 through the first cold water pipe 34, and then enters the solar collector 31. After being heated into hot water by the solar collector 31, it is discharged from the hot water discharge pipe 35 and transported to the surrounding buildings through the pipe network to provide hot water for the surrounding buildings. Since the first heat exchange box 32 is filled with cold water, the temperature of the first heat exchange box 32 is relatively low.

[0042] According to the detection result of the temperature detection element 12, when the temperature of a certain part of the photovoltaic module 2 is too high and restricts the power generation performance, the driving mechanism pushes the solar collector 31 and the first heat exchange box 32 as a whole to move, so that the solar collector 31 and the first heat exchange box 32 cover the part of the photovoltaic module 2 with too high temperature. The shielded part of the photovoltaic module 2 is no longer irradiated, which is beneficial to rapid cooling. At this time, the first heat exchange box 32 is in direct contact with the part of the photovoltaic module 2 with too high temperature. The cold water in the first heat exchange box 32 has a relatively low temperature and can quickly absorb the heat on the front surface (upper surface) of the photovoltaic module 2, reducing the temperature of the front surface of the photovoltaic module 2. When cooling the front surface of the photovoltaic module 2, although the shielded part of the photovoltaic module 2 does not generate electricity, the solar collector 31 works normally, so solar energy will not be wasted. In addition, the cold water in the first heat exchange box 32 absorbs the heat of the photovoltaic module 2, and its own temperature rises. The solar collector 31 can heat the cold water to the set temperature faster, improving the utilization rate of thermal energy and increasing the supply of hot water.

[0043] In order to improve the cooling effect on the photovoltaic module 2, a second heat exchange box 13 is provided on the lower surface of the photovoltaic module 2. One end of the second heat exchange box 13 is provided with a second cold water pipe 14, and the other end is connected to the first cold water pipe 34. The second cold water pipe 14 is connected to an external water supply pipeline, and cold water is pumped into the second heat exchange box 13. The second heat exchange box 13 can absorb the heat on the back of the photovoltaic module 2, which is beneficial to reducing the temperature of the entire photovoltaic module 2, and at the same time absorb and utilize the heat of the photovoltaic module 2. The cold water in the second heat exchange box 13 then enters the first heat exchange box 32 through the first cold water pipe 34. The first cold water pipe 34 is made of a flexible hose to adapt to the movement of the first heat exchange box 32.

[0044] The driving mechanism can be a device such as a hydraulic cylinder. As a preferred embodiment, guide rails 18 are provided on both sides of the support frame 11, and a sliding seat 19 that is slidably engaged with the guide rails 18 is provided on the guide rails 18. The sliding seat 19 is fixedly connected to the solar collector 31; the driving mechanism includes a motor 16, and the motor 16 is connected to a lead screw 17. The lead screw 17 passes through the sliding seat 19 and is threadedly engaged with the sliding seat 19. When the motor 16 drives the lead screw 17 to rotate, the sliding seat 19 can be pushed to move linearly along the guide rails 18, thereby driving the entire solar collector 31 to move linearly and transporting the solar collector 31 to a set position.

[0045] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Concave curtain wall building square light focusing utilization system, characterized by: It comprises a solar radiation tracking and analysis system, a mobile vehicle (1) and a control system (22); The solar radiation tracking and analysis system is used to determine the location and changing pattern of the strongest light and heat radiation area formed by the concave curtain wall building reflecting and focusing the sunlight on the square; The top of the mobile vehicle (1) is provided with a photovoltaic component (2), a photothermal component (3) and a cooling component for cooling the photovoltaic component (2); The solar radiation tracking and analysis system and the mobile vehicle (1) are both connected to a control system (22), and the control system (22) controls the mobile vehicle (1) to move to the strongest radiation area according to the position of the strongest radiation area.

2. The concave curtain wall building square light focusing and utilization system as claimed in claim 1, characterized in that: The solar radiation tracking and analysis system comprises an infrared imager (4), and the infrared imager (4) is used to capture the thermal radiation image of the square area to obtain the temperature distribution conditions of different areas of the square.

3. The concave curtain wall building square light focusing and utilization system as claimed in claim 1, characterized in that: The square is provided with a plurality of mutually parallel first reference lines (5) and a plurality of mutually parallel second reference lines (6); the first reference lines (5) are perpendicular to the second reference lines (6), and the second reference lines (6) and the second reference lines (6) form a reference grid; each first reference line (5) is provided with a first mark (7), and each second reference line (6) is provided with a second mark (8); and the mobile vehicle (1) is provided with an identification mechanism (9) for identifying the first mark (7) and the second mark (8).

4. The concave curtain wall building square light focusing and utilization system as claimed in claim 3, characterized in that: The first mark (7) is a number, the second mark (8) is a letter, and the identification mechanism (9) is a camera element.

5. The concave curtain wall building square light focusing and utilization system as claimed in claim 1, characterized in that: The mobile vehicle body (1) is provided with four vertical lifting pillars (10), the top of each lifting pillar (10) is hinged with a support frame (11), the photovoltaic assembly (2) is fixedly arranged on the support frame (11), and the support frame (11) is provided with a temperature detection element (12) for detecting the temperature of the photovoltaic assembly (2); the photothermal assembly (3) comprises a solar collector (31), a first heat exchange box (32) is fixedly arranged on the lower surface of the solar collector (31), and a heat exchange box (32) is arranged between the first heat exchange box (32) and the solar collector (31). The solar thermal collector (31) has a heat insulation layer (33); one end of the first heat exchange box (32) is connected to a first cold water pipe (34); the other end is connected to a water inlet of a solar thermal collector (31); a water outlet of the solar thermal collector (31) is connected to a hot water discharge pipe (35); the solar thermal collector (31) is located above the photovoltaic module (2) and is slidably matched with the support frame (11); the lower surface of the first heat exchange box (32) can contact the upper surface of the photovoltaic module (2); and the solar thermal collector (31) is connected to a driving mechanism for driving the solar thermal collector (31) to slide.

6. The concave curtain wall building square light focusing and utilization system as claimed in claim 5, characterized in that: A second heat exchange box (13) is provided on the lower surface of the photovoltaic assembly (2); a second cold water pipe (14) is provided at one end of the second heat exchange box (13), and the other end is connected to the first cold water pipe (34).

7. The concave curtain wall building square light focusing and utilization system as claimed in claim 5, characterized in that: A connecting ball (15) is provided at the top of the lifting support (10), a spherical groove is provided at the edge of the lower surface of the support frame (11), and the connecting ball (15) is located in the spherical groove and is gap-matched with the spherical groove.

8. The concave curtain wall building square light focusing and utilization system as claimed in claim 5, characterized in that: Guide rails (18) are arranged on both sides of the support frame (11), and a slide seat (19) slidably matched with the guide rails (18) is arranged on the guide rails (18), and the slide seat (19) is fixedly connected to the solar collector (31); the driving mechanism comprises a motor (16), and the motor (16) is connected to a screw rod (17), and the screw rod (17) passes through the slide seat (19) and is threadedly matched with the slide seat (19).

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