Automatic heliostat surface type radian adjusting system

Abstract

The utility model discloses a heliostat surface type radian automatic adjusting system, belongs to the technical field of heliostats, and can solve the problems that an existing heliostat surface type adjusting mode is time-consuming and labor-consuming, and the assembling effect and the light condensation effect are poor. The system comprises a support used for fixing a mirror surface to be adjusted; the distance measuring module is located above the mirror surface to be adjusted; the distance measuring module comprises a plurality of distance measuring instruments, the mirror surface to be adjusted is provided with a plurality of adjusting point positions, and each distance measuring instrument is used for at least measuring the vertical distance from the distance measuring instrument to one adjusting point position; the control module is used for determining the displacement adjustment amount of each adjustment point position on the to-be-adjusted mirror surface according to the vertical distance and the target surface type radian of the to-be-adjusted mirror surface; the push rod module is arranged below the mirror surface to be adjusted; the push rod module comprises a plurality of push rod mechanisms, and each push rod mechanism is used for pushing the to-be-adjusted mirror surface to move in the direction close to the distance measurement module according to the displacement adjustment amount of the corresponding adjustment point position. The device is used for adjusting the radian of the heliostat surface.

Description

Technical Field

[0001] The utility model relates to a heliostat mirror surface type arc automatic adjustment system, belonging to the technical field of heliostats. Background Art

[0002] Heliostats are widely used in the field of solar energy, and the accuracy of their back surface is crucial to their performance. Traditional manufacturing methods may have problems meeting high precision requirements, so in order to improve the production efficiency and accuracy of heliostats, it is necessary to detect and correct the back surface of the heliostat.

[0003] There are two ways to adjust the curvature of the existing heliostat surface. One is to adjust the curvature of the mirror surface through a flat support mechanism, which is adjusted by folding instead of bending; however, this method of folding instead of bending is difficult to strictly meet the focusing effect of the curved mirror of the heliostat. The second is to adjust the height of the mirror surface through pure manual pads, but this method requires a lot of manpower, is time-consuming and labor-intensive, and the assembly effect is average. Summary of the invention

[0004] The utility model provides a heliostat mirror type arc automatic adjustment system, which can solve the problems that the existing heliostat mirror type adjustment method is time-consuming and labor-intensive, and has poor assembly effect and focusing effect.

[0005] The utility model provides a heliostat mirror type arc automatic adjustment system, the system comprising:

[0006] A bracket, used for fixing the mirror to be adjusted;

[0007] A distance measuring module is arranged on the bracket and is located above the mirror surface to be adjusted; the distance measuring module includes a plurality of distance measuring instruments, the mirror surface to be adjusted has a plurality of adjustment points, and each distance measuring instrument is used to measure a vertical distance from the mirror surface to at least one adjustment point;

[0008] A control module, connected to the distance measuring module, for determining the displacement adjustment amount of each adjustment point on the mirror surface to be adjusted according to the vertical distance and the target surface curvature of the mirror surface to be adjusted;

[0009] A push rod module is arranged below the mirror to be adjusted and connected to the control module; the push rod module includes a plurality of push rod mechanisms, each of which corresponds to the adjustment point one by one, and each push rod mechanism is used to push the mirror to be adjusted to move in a direction close to the ranging module according to the displacement adjustment amount of the corresponding adjustment point.

[0010] Optionally, the plurality of adjustment points on the mirror surface to be adjusted are distributed in an array;

[0011] The distance measuring module also includes a driving mechanism, and a plurality of distance measuring instruments are fixed on the driving mechanism in a row; the driving mechanism is used to drive the distance measuring instruments to move along the column direction of the adjustment points, so that each distance measuring instrument can measure the vertical distance to each adjustment point on the corresponding column.

[0012] Optionally, the driving mechanism includes:

[0013] Two conveying slides are respectively arranged at the top ends of the two opposite side walls of the bracket;

[0014] A carrying beam, both ends of which are fixed to two conveying slides, and a plurality of rangefinders are arranged in a row on the carrying beam;

[0015] The driving member is used to drive the two conveying slides to move, so as to drive the carrying beam to move along the column direction of the adjustment points.

[0016] Optionally, a fixing groove is provided in the bracket, and the mirror to be adjusted is clamped in the fixing groove.

[0017] Optionally, the control module is also used to control the start or stop of the rangefinder and the push rod mechanism, and display the data returned by the rangefinder and the push rod mechanism.

[0018] Optionally, the control module is connected to the rangefinder and the push rod mechanism via a hub.

[0019] Optionally, the hub is a 485 hub.

[0020] Optionally, the control module, the rangefinder and the push rod mechanism all transmit data via RS485 protocol.

[0021] Optionally, the rangefinder is a laser rangefinder.

[0022] Optionally, the push rod mechanism is a servo push rod.

[0023] The beneficial effects that the utility model can produce include:

[0024] The utility model provides an automatic adjustment system for the curvature of the heliostat surface, which measures the vertical distance of each adjustment point on the heliostat through a distance measurement module, and then obtains the displacement adjustment amount of each adjustment point by comparing it with the curvature of the target surface of the heliostat, and finally uses a push rod mechanism to perform corresponding displacement adjustment, so that the mirror to be adjusted is basically close to the curvature of the target surface, thereby realizing automatic adjustment of the target surface. The utility model does not require manual adjustment of the mirror surface, and only needs to set the required mirror surface, and the system can automatically adjust, which greatly reduces human resource consumption. At the same time, since the push rod mechanism is a movable structure, the surface parameters can be set according to different design requirements, and repeated production is not required, which greatly reduces the energy loss of fixed mold production. In addition, the utility model does not adopt the common folding-instead-bending structure, so the heliostat produced has a more gentle curvature change and a more uniform focusing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of the heliostat mirror type arc automatic adjustment system provided by the embodiment of the utility model Figure 1 ;

[0026] Figure 2 Schematic diagram of the structure of the heliostat mirror type arc automatic adjustment system provided by the embodiment of the utility model Figure 2 ;

[0027] Figure 3 A flowchart of the automatic curvature adjustment system for the heliostat provided by the embodiment of the utility model;

[0028] Figure 4 Schematic diagram of the interactive interface of the heliostat mirror type arc automatic adjustment system provided by the embodiment of the utility model Figure 1 ;

[0029] Figure 5 Schematic diagram of the interactive interface of the heliostat mirror type arc automatic adjustment system provided by the embodiment of the utility model Figure 2 .

[0030] Reference numerals:

[0031] 11. Distance meter; 12. Transmission slide; 13. Carrying beam; 14. Fixing slot; 15. Mirror to be adjusted; 16. Push rod mechanism; 17. Driving motor; 18. Transmission shaft; 19. Hub; 20. Bracket; 21. Control module. DETAILED DESCRIPTION

[0032] The present invention is described in detail below in conjunction with embodiments, but the present invention is not limited to these embodiments.

[0033] The utility model provides a heliostat mirror type arc automatic adjustment system, such as Figure 1 and Figure 2 As shown, the system comprises:

[0034] The bracket 20 is used to fix the mirror surface 15 to be adjusted.

[0035] In practical applications, a fixing groove 14 may be provided in the bracket 20 , and the mirror surface 15 to be adjusted is clamped in the fixing groove 14 .

[0036] The distance measuring module is arranged on the bracket 20 and is located above the mirror surface 15 to be adjusted; the distance measuring module includes a plurality of distance measuring instruments 11, and the mirror surface 15 to be adjusted has a plurality of adjustment points, and each distance measuring instrument 11 is used to measure the vertical distance from the mirror surface 15 to at least one adjustment point. The distance measuring instrument 11 may be a laser distance measuring instrument.

[0037] Specifically, the plurality of adjustment points on the mirror surface 15 to be adjusted are distributed in an array.

[0038] The distance measuring module also includes a driving mechanism, and a plurality of distance meters 11 are fixed on the driving mechanism in a row; the driving mechanism is used to drive the distance meters 11 to move along the column direction of the adjustment points, so that each distance meter 11 can measure the vertical distance to each adjustment point on the corresponding column.

[0039] The driving mechanism includes:

[0040] The two conveying slides 12 are respectively disposed at the top ends of the two opposite side walls of the bracket 20 .

[0041] The two ends of the carrying beam 13 are respectively fixed on the two conveying slides 12 , and a plurality of distance meters 11 are arranged in a row on the carrying beam 13 .

[0042] The driving member is used to drive the two conveying slides 12 to operate, so as to drive the carrying beam 13 to move along the column direction of the adjustment point.

[0043] The driving member may be a driving motor 17 , a transmission shaft 18 of the driving motor 17 is connected to both of the two conveying slides 12 , and the driving motor 17 drives the two conveying slides 12 to operate via the transmission shaft 18 .

[0044] The control module 21 is connected to the distance measuring module, and is used to determine the displacement adjustment amount of each adjustment point on the mirror surface 15 to be adjusted according to the vertical distance and the target surface curvature of the mirror surface 15 to be adjusted.

[0045] The push rod module is arranged below the mirror surface 15 to be adjusted and connected to the control module 21; the push rod module includes a plurality of push rod mechanisms 16, each of which corresponds to an adjustment point, and each push rod mechanism 16 is used to push the mirror surface 15 to be adjusted to move toward the distance measurement module according to the displacement adjustment amount of the corresponding adjustment point. The push rod mechanism 16 can be a servo push rod.

[0046] Furthermore, the control module 21 is also used to control the rangefinder 11 and the push rod mechanism 16 to start or stop, and to display the data returned by the rangefinder 11 and the push rod mechanism 16 .

[0047] In the embodiment of the present utility model, the control module 21 includes:

[0048] The single chip microcomputer is connected to multiple rangefinders 11 and multiple push rod mechanisms 16, and is used to calculate the displacement adjustment amount of each adjustment point on the mirror surface 15 to be adjusted according to the vertical distance and the target surface curvature of the mirror surface 15 to be adjusted, and send the displacement adjustment amount of each adjustment point to the corresponding push rod mechanism 16.

[0049] The host computer is connected to the single-chip microcomputer and is used to send control instructions to the single-chip microcomputer so that the single-chip microcomputer controls the rangefinder 11 and the push rod mechanism 16 to start or stop, and displays the data returned by the single-chip microcomputer.

[0050] Among them, the single chip microcomputer, the rangefinder 11 and the push rod mechanism 16 all transmit data through the RS485 protocol.

[0051] The MCU and the drivers of the laser rangefinder and servo actuator all use the RS485 protocol and use differential signals to transmit data, that is, a pair of signal lines (usually called A line and B line) are used to transmit data by sending a forward signal on the A line and a reverse signal on the B line. This transmission method can effectively resist noise and interference and has strong anti-interference ability in industrial environments. The protocol supports multi-point communication, allowing multiple devices to communicate on the same bus. Each device is distinguished by a unique address so that the recipient of the data can be correctly identified on the bus. By address encoding each laser rangefinder and servo actuator, the MCU can correctly identify each laser rangefinder and servo actuator. The instructions sent by the MCU to the laser rangefinder and servo actuator contain not only address codes, but also function codes and numerical information. Through these control instructions, the MCU can control the corresponding laser rangefinder or servo actuator to perform corresponding actions.

[0052] In the embodiment of the utility model, the single chip microcomputer is connected with the range finder 11 and the push rod mechanism 16 through a hub 19. Preferably, the hub 19 is a 485 hub.

[0053] The microcontroller is connected to the laser rangefinder and the servo actuator through a 485 hub. The 485 hub is a device used for serial communication. Here, it is used to connect the laser rangefinder and the servo actuator on the RS-485 bus. Multiple laser rangefinders and servo actuators communicate on the same bus and are connected through a 485 hub to form a network. By using a 485 hub to automatically control the direction of data transmission, the installation and configuration of the bus can be simplified.

[0054] The working process of the above heliostat mirror type arc automatic adjustment system is as follows: Figure 3 As shown, after the mirror surface 15 to be adjusted is pushed into the fixing groove 14 on the bracket 20 for fixing, the transmission slide 12 carries the rangefinder 11 to scan each adjustment point on the heliostat. Each adjustment point corresponds to a push rod mechanism 16 with a fixed number. After the rangefinder 11 measures the vertical distance, it sends it back to the single-chip microcomputer and saves it in the array. The distance value corresponding to the curvature of the target surface is subtracted to obtain the displacement adjustment amount of the push rod mechanism 16. The single-chip microcomputer then sends instructions to the 485 driver of the push rod mechanism 16 to control the push rod mechanism 16 to push out the curved surface heliostat surface shape, and complete the surface shape formulation. After the preliminary formulation of the surface shape is completed, the transmission slide 12 is started again, and the above operations are repeated until the difference between the distance value measured by the rangefinder 11 at each point and the given value of each adjustment point meets the set threshold. At this point, the adjustment of the heliostat surface shape is completed.

[0055] The utility model is equipped with the heliostat mirror type arc automatic adjustment software in the upper computer. After entering the function bar, you can see Figure 4 The user interaction area is shown in the figure. In this interaction area, the theoretical setting value and threshold of the heliostat coordinates are input. After confirming that the distance measurement module and the push rod module are correctly connected to the microcontroller and the power is connected, click Start to display the distance return value of the distance measurement module on the software interface. According to the difference between the theoretical setting value and the actual distance measurement value, the push rod module will automatically start to formulate the heliostat surface type and display whether the heliostat surface type is qualified on the software interface. The user can also use the stop button to urgently stop the push rod module in case of a fault to prevent damage to the heliostat.

[0056] Figure 5 A specific operation example of the interactive interface is shown. The automatic adjustment system for the curvature of the heliostat surface has an automatic correction mechanism, that is, when the surface shape of the curved heliostat is detected to be unqualified, the push rod module is started again for correction. The utility model greatly improves the degree of automation and accuracy by forming a network with a single-chip microcomputer, a laser rangefinder and a servo push rod.

[0057] The utility model realizes the automatic curvature adjustment and detection of the heliostat mirror surface curvature, solves the problem that the surface adjustment requires a lot of manpower and the detection accuracy is low, and at the same time improves the flexibility of the system and avoids the waste of resources and costs caused by the flexibility problem.

[0058] The utility model can continuously optimize the surface shape of the heliostat through the iterative adjustment process. The organic combination of laser scanning, data processing and push rod adjustment enables the system to gradually approach the ideal target surface shape through multiple adjustments.

[0059] The above are only a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A heliostat mirror type curvature automatic adjustment system, characterized in that: The system comprises: A bracket, used for fixing the mirror to be adjusted; A distance measuring module is arranged on the bracket and is located above the mirror surface to be adjusted; the distance measuring module includes a plurality of distance measuring instruments, the mirror surface to be adjusted has a plurality of adjustment points, and each distance measuring instrument is used to measure a vertical distance from the mirror surface to at least one adjustment point; A control module, connected to the distance measuring module, for determining the displacement adjustment amount of each adjustment point on the mirror surface to be adjusted according to the vertical distance and the target surface curvature of the mirror surface to be adjusted; A push rod module is arranged below the mirror to be adjusted and connected to the control module; the push rod module includes a plurality of push rod mechanisms, each of which corresponds to the adjustment point one by one, and each push rod mechanism is used to push the mirror to be adjusted to move in a direction close to the ranging module according to the displacement adjustment amount of the corresponding adjustment point.

2. The system according to claim 1, characterized in that The plurality of adjustment points on the mirror surface to be adjusted are distributed in an array; The distance measuring module also includes a driving mechanism, and a plurality of distance measuring instruments are fixed on the driving mechanism in a row; the driving mechanism is used to drive the distance measuring instruments to move along the column direction of the adjustment points, so that each distance measuring instrument can measure the vertical distance to each adjustment point on the corresponding column.

3. The system according to claim 2, characterized in that The driving mechanism comprises: Two conveying slides are respectively arranged at the top ends of the two opposite side walls of the bracket; A carrying beam, both ends of which are fixed to two conveying slides, and a plurality of rangefinders are arranged in a row on the carrying beam; The driving member is used to drive the two conveying slides to move, so as to drive the carrying beam to move along the column direction of the adjustment points.

4. The system according to claim 1, characterized in that A fixing groove is arranged in the bracket, and the mirror surface to be adjusted is clamped in the fixing groove.

5. The system according to claim 1, characterized in that The control module is also used to control the start or stop of the rangefinder and the push rod mechanism, and to display the data returned by the rangefinder and the push rod mechanism.

6. The system according to claim 5, characterized in that The control module is connected with the rangefinder and the push rod mechanism through a hub.

7. The system according to claim 6, characterized in that The hub is a 485 hub.

8. The system according to claim 6, characterized in that The control module, the rangefinder and the push rod mechanism all perform data transmission via the RS485 protocol.

9. The system according to claim 1, characterized in that The rangefinder is a laser rangefinder.

10. The system according to claim 1, characterized in that The push rod mechanism is a servo push rod.

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