A lighting device, lighting system and control method

Abstract

The application is suitable for the technical field of lighting lamps and lanterns, and provides a lighting device, which comprises lamp holders, a mounting bracket, a distance measuring module, a control module and an adjusting module; the lamp holders are at least two; each lamp holder is connected to the mounting bracket and can rotate relative to the mounting bracket; the distance measuring module is used for measuring the distance between the distance measuring module and a set irradiation point; the control module is used for controlling the distance measuring module and the lamp holders to rotate synchronously so that the distance measuring module faces the set irradiation point, and outputting the rotation angle required for the lamp holders to jointly direct to the set irradiation point according to the distance measured by the distance measuring module; the adjusting module is arranged on the mounting bracket and is used for adjusting the rotation of the lamp holders according to the required rotation angle; the adjusting module is connected to the control module and the lamp holders respectively. The application further provides a lighting system and a control method of the lighting device. The lighting device, the lighting system and the control method provided by the application can realize the functions of light projection and light diffusion.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of lighting lamps, and particularly relates to a lighting device, a lighting system and a control method. BACKGROUND

[0002] In most of the LED low-top lamps on the market, only a certain angle can be adjusted and then fixedly installed, and manual adjustment is required when the angle is adjusted. When a certain effect needs to be adjusted, such as multiple lamp heads focusing light to a certain object to be irradiated, or the light rays need to completely cover a certain irradiation surface to avoid dark spots or irradiation dead angles, manual adjustment needs to be repeatedly adjusted, and it is difficult to achieve the required effect, which is time-consuming, labor-consuming and troublesome to operate. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art and provide a lighting device, a lighting system and a control method, which can make the lamp heads collectively project to a set irradiation point, realize the light projection function, or make the lamp heads rotate respectively to make the irradiation areas overlap each other without dark spots, and realize the floodlight function.

[0004] The technical solution of the present application is: a lighting device, comprising lamp heads, a mounting bracket, a distance measuring module, a control module and an adjusting module; the lamp heads are at least two; each lamp head is connected to the mounting bracket and can rotate relative to the mounting bracket; the distance measuring module is used to measure the distance between the distance measuring module and a set irradiation point; the control module is used to control the distance measuring module and the lamp heads to rotate synchronously to the direction of the set irradiation point, and output the required rotation angle of each lamp head collectively projecting to the set irradiation point according to the distance measured by the distance measuring module; the adjusting module is arranged on the mounting bracket and is used to adjust the rotation of each lamp head according to the required rotation angle, and the adjusting module is connected to the control module and the lamp heads respectively.

[0005] As a further improvement of the technical solution, the distance measuring module is connected to the outer side of the mounting bracket; the distance measuring module is a laser module; or the distance measuring module comprises an ultrasonic module and a light source component connected to the ultrasonic module.

[0006] As a further improvement of the technical solution, the mounting bracket comprises a fixed bracket, a first bracket and a second bracket, the first bracket and the second bracket are respectively rotatably connected to the two ends of the fixed bracket, one end of each lamp head is connected to the first bracket, and the other end of each lamp head is connected to the second bracket; the distance measuring module is arranged on the first bracket or the second bracket, and the adjusting module comprises a main adjusting module for adjusting the rotation of the distance measuring module relative to the fixed bracket.

[0007] The lamp head is provided with two, two of which are a first lamp head and a second lamp head, the first support includes a first left connecting rod connected to the first lamp head and a first right connecting rod connected to the second lamp head; the first left connecting rod and the first right connecting rod are both rotationally connected to one end of the fixed support; the second support includes a second left connecting rod connected to the first lamp head and a second right connecting rod connected to the second lamp head; the second left connecting rod and the second right connecting rod are both rotationally connected to the other end of the fixed support.

[0008] As a further improvement of the technical solution, the adjustment module further includes a first adjustment module for adjusting the rotation of the first lamp head relative to the first support and the second support, and a second adjustment module for adjusting the rotation of the second lamp head relative to the first support and the second support.

[0009] The fixed support includes a transverse support arm and longitudinal support arms connected to both ends of the transverse support arm, the control module is arranged in the transverse support arm, and the main adjustment module is arranged in the longitudinal support arm; the first support is connected to one of the longitudinal support arms, and the second support is connected to the other longitudinal support arm.

[0010] The first adjustment module is arranged in the first left connecting rod or the second left connecting rod, and the second adjustment module is arranged in the first right connecting rod or the second right connecting rod.

[0011] As a further improvement of the technical solution, the main adjustment module is a gear adjustment mechanism or a worm gear transmission mechanism; the first adjustment module is a gear adjustment mechanism or a worm gear transmission mechanism; and the second adjustment module is a gear adjustment mechanism or a worm gear transmission mechanism.

[0012] As a further improvement of the technical solution, the main adjustment module, the first adjustment module, and the second adjustment module are all gear adjustment mechanisms; the gear adjustment mechanism includes a driving motor, a driving wheel connected to the driving motor, and a driven gear set in transmission connection with the driving wheel.

[0013] One of the driven gear sets is fixedly connected with a main connecting shaft for driving the first support, the second support, and each lamp head to rotate synchronously relative to the fixed support, the main connecting shaft is connected with the first support or / and the second support; another driven gear set is fixedly connected with a first connecting shaft for driving the first lamp head to rotate relative to the first support and the second support, the first connecting shaft is connected with the first lamp head; and still another driven gear set is fixedly connected with a second connecting shaft for driving the second lamp head to rotate relative to the first support and the second support, the second connecting shaft is connected with the second lamp head.

[0014] As a further improvement of the technical solution, the transmission gear set comprises at least one gear reduction module, the gear reduction module comprises a first driven gear in transmission connection with the driving gear, a second driven gear coaxially arranged with the first driven gear, and a third transmission gear in transmission connection with the second driven gear; the number of teeth of the second driven gear is greater than that of the first driven gear, and the number of teeth of the third transmission gear is greater than that of the second driven gear; or, the gear reduction module is a first driven gear meshing with the driving gear, and the number of teeth of the first driven gear is greater than that of the driving gear.

[0015] As a further improvement of the technical solution, the main adjustment module, the first adjustment module and the second adjustment module are all worm gear transmission mechanisms; the worm gear transmission mechanism comprises a driving motor, a worm connected to the driving motor, and a worm gear in transmission connection with the worm; one of the worm gears is fixedly connected with a main connecting shaft for driving the first support, the second support and each lamp head to synchronously rotate relative to the fixed support, and the main connecting shaft is connected with the first support or / and the second support; another worm gear is fixedly connected with a first connecting shaft for driving the first lamp head to rotate relative to the first support and the second support, and the first connecting shaft is connected with the first lamp head; and the other worm gear is fixedly connected with a second connecting shaft for driving the second lamp head to rotate relative to the first support and the second support, and the second connecting shaft is connected with the second lamp head.

[0016] The application also provides a lighting system comprising at least two lighting devices as described above, each of the lighting devices being arranged in sequence and adjacent to each other, and each of the lamp heads of the lighting devices being used for pointing to an irradiation object, or the effective illumination areas corresponding to adjacent lighting devices overlap each other, and the combination of the effective illumination areas completely covers a designated illumination area.

[0017] The application also provides a control method of a lighting device, which is used for controlling the lighting device as described above, and comprises the following steps:

[0018] The distance measuring module adjustment step adjusts the synchronous rotation of the distance measuring module and the lamp head, so that the distance measuring module faces a set irradiation point;

[0019] The distance measuring step measures the distance between the distance measuring module and the set irradiation point by the distance measuring module;

[0020] The output and adjustment step outputs the rotation angle of the lamp head according to the measured distance by the control module, and adjusts the rotation of each lamp head by the adjustment module, so that the optical axis of the lamp head points to the set irradiation point.

[0021] The application provides a lighting device, a lighting system and a control method, wherein a distance between the lighting device and a set irradiation point is measured by a distance measuring module, a control module controls the distance measuring module and the lamp holder to rotate synchronously and rotate to the set irradiation point, the distance measuring module outputs a rotation angle required for the lamp holder to jointly direct to the set irradiation point according to the measured distance, and an adjusting module arranged on the mounting bracket is used to adjust the rotation of the lamp holder according to the required rotation angle, so that the lamp holder can jointly direct to the set irradiation point, the light projection function is realized, or the lamp holder rotates respectively to make the irradiation areas overlap each other without dark spots, and the floodlight function is realized. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0023] Figure 1 is a perspective assembly view of the lighting device provided by the embodiment of the present application;

[0024] Figure 2 is a perspective exploded view of the lighting device provided by the embodiment of the present application;

[0025] Figure 3 is another perspective exploded view of the lighting device provided by the embodiment of the present application;

[0026] Figure 4 is a structural schematic view of the lighting device provided by the embodiment of the present application;

[0027] Figure 5 is a structural schematic view of the distance measuring module of the lighting device provided by the embodiment of the present application directing to the set irradiation point;

[0028] Figure 6 is a structural schematic view of the lighting device provided by the embodiment of the present application for light projection irradiation;

[0029] Figure 7 is a structural schematic view of the lighting system provided by the embodiment of the present application;

[0030] Figure 8 is a structural schematic view of the mounting bracket of the lighting device provided by the embodiment of the present application;

[0031] Figure 9 is a flow chart of the control method of the lighting device provided by the embodiment of the present application.

[0032] Reference numerals in the drawings:

[0033] 12-Lamp head, 1-First lamp head, 2-Second lamp head, 345-Mounting bracket, 3-Fixed bracket, 31-Horizontal support arm, 32-Longitudinal support arm, 4-First bracket, 41-First left connecting rod, 42-First right connecting rod, 5-Second bracket, 51-Second left connecting rod, 52-Second right connecting rod, 6-Distance measuring module, 7-Control module, 8-Main adjustment module, 9-First adjustment module, 10-Second adjustment module. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] It should be noted that the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to direct setup or connection, or indirect setup or connection through centered components or centered structures.

[0036] Furthermore, in embodiments of this invention, terms such as "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, or in a conventional placement or usage state. These terms are merely for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the structures, features, devices, or elements referred to must have a specific orientation or positional relationship, nor that they must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0037] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the various specific technical features / embodiments in this invention will not be described separately.

[0038] like Figures 1 to 6 As shown, an embodiment of the present invention provides a lighting device including a lamp holder 12 and a mounting bracket 345 (e.g., ...). Figure 8The lighting device comprises a mounting bracket 345, a plurality of lamp heads 12, a distance measuring module 6, a control module 7 and an adjusting module; the mounting bracket 345 is provided with at least two lamp heads 12; each lamp head 12 is connected to the mounting bracket 345 and can rotate relative to the mounting bracket 345; the distance measuring module 6 is used for measuring the distance L2 between the distance measuring module 6 and a set irradiation point; the control module 7 is used for controlling the distance measuring module 6 and the lamp heads 12 to rotate synchronously and rotate to the set irradiation point (as shown in Figure 5 In the embodiment, the laser beam OO' is directed to the set irradiation point), according to the measured distance of the distance measuring module 6, the rotating angle of each lamp head 12 required for the lamp heads 12 to be directed to the set irradiation point is outputted, and it is required to be noted that, as shown in Figure 4 Since the distance L1 between the distance measuring module 6 and the two lamp heads 12 and the vertical distance d between the lamp heads 12 and the distance measuring module 6 are fixed parameters, the measured distance is L2, L3 (i.e. L2-d) can be obtained, and further, according to the trigonometric function relationship, the rotating angle α of each lamp head 12 required for the lamp head 12 to be rotated to the set irradiation point can be obtained; the adjusting module is arranged on the mounting bracket 345, and the adjusting module is connected to the control module 7 and the lamp heads 12 and is used for adjusting the rotation of each lamp head 12 according to the required rotating angle. The lighting device provided by the embodiment can be used for irradiating the set irradiation point, that is, each lamp head 12 is rotated and directed to the set irradiation point (or directed to a certain irradiation object), so that the optical axes of the lamp heads 12 are all intersected at the set irradiation point (the optical axis AA' and the optical axis BB' are all intersected at the set irradiation point), the light is converged at the set irradiation point, and the irradiation function is realized (as shown in Figure 6 Alternatively, as an optional embodiment, each lamp head 12 is rotated and directed to the set irradiation point of the irradiation plane (different lamp heads 12 can be directed to different set irradiation points), so that the irradiation areas of the lamp heads 12 are overlapped (or connected) without dark spots, the light of the lamp heads 12 is combined to cover the irradiation area, the irradiation dead angle is excluded, and the floodlight function is realized.

[0039] In some embodiments, the distance measuring module 6 is connected to the outside of the mounting bracket 345; the distance measuring module 6 is a laser module, in specific applications, the laser module emits a light beam, and by controlling the rotation of the laser module to make the light beam emitted by it align with the set irradiation point, it can be observed by visual observation, and after the laser is aligned, the distance between the laser module and the set irradiation point can be directly measured; or, in another embodiment, the distance measuring module 6 includes an ultrasonic module and a light source component, the light source module is connected to the ultrasonic module, and the light source module is used to emit a visible light beam, the ultrasonic module can be used to measure the distance from the set irradiation point, which is also feasible; using a laser module can measure the distance and has a light spot, without the need to additionally set a light source component to emit a light beam to align with the set irradiation point; while the ultrasonic module only measures the distance and needs the light source component to assist in emitting a light beam to align with the set irradiation point, which is more complex, but the effect is the same. In some embodiments, the mounting bracket 345 includes a fixed bracket 3, a first bracket 4 and a second bracket 5, the first bracket 4 and the second bracket 5 are respectively rotationally connected to the two ends of the fixed bracket 3, one end of each of the lamp heads 12 is connected to the first bracket 4, and the other end of each of the lamp heads 12 is connected to the second bracket 5; the distance measuring module 6 is arranged on the first bracket 4, and in another embodiment, it can also be arranged on the second bracket 5, and the adjusting module includes a main adjusting module 8 for adjusting the rotation of the distance measuring module 6 relative to the fixed bracket 3; in this embodiment, the distance measuring module 6 and each lamp head 12 can be controlled to rotate synchronously by a controller or other mobile devices (such as a mobile phone), so that the distance measuring module 6 is directed towards the set irradiation point (in this embodiment, the laser beam of the laser module is directed towards the set irradiation point by visual observation), which is simple to operate.

[0040] The lamp head 12 is provided with two, the two lamp heads 12 are respectively a first lamp head 1 and a second lamp head 2, the first bracket 4 includes a first left connecting rod 41 connected to the first lamp head 1 and a first right connecting rod 42 connected to the second lamp head 2; the first left connecting rod 41 and the first right connecting rod 42 are both rotationally connected to one end of the fixed bracket 3; the second bracket 5 includes a second left connecting rod 51 connected to the first lamp head 1 and a second right connecting rod 52 connected to the second lamp head 2; the second left connecting rod 51 and the second right connecting rod 52 are both rotationally connected to the other end of the fixed bracket 3. In specific applications, in this embodiment, the first left connecting rod 41 and the first right connecting rod 42 are angular, and the second left connecting rod 51 and the second right connecting rod 52 are angular; one end of the first left connecting rod 41 is integrally connected to one end of the first right connecting rod 42, and similarly, the second left connecting rod 51 and the second right connecting rod 52 are angular, and one end of the second left connecting rod 51 is integrally connected to one end of the second right connecting rod 52, the overall structure is more reliable, and is convenient for assembly.

[0041] In some embodiments, the adjustment module further includes a first adjustment module 9 for adjusting the rotation of the first lamp head 1 relative to the first bracket 4 and the second bracket 5, and a second adjustment module 10 for adjusting the rotation of the second lamp head 2 relative to the first bracket 4 and the second bracket 5; the fixed bracket 3 includes a transverse support arm 31 and longitudinal support arms 32 connected to both ends of the transverse support arm 31, and the fixed bracket 3 may be in the shape of a "U"; the control module 7 is disposed within the transverse support arm 31, and the main adjustment module 8 is disposed within the longitudinal support arm 32; the first bracket 4 is connected to one of the longitudinal support arms 32, and the second bracket 5 is connected to the other longitudinal support arm 32; the first adjustment module 9 is disposed on the first left connecting rod 41 (or may be disposed on the second left connecting rod 51); the second adjustment module 10 is disposed on the first right connecting rod 42 (or may be disposed on the second right connecting rod 52). In specific applications, each lamp head 12 is also provided with an angle sensor to measure the actual rotation angle of each lamp head 12 and feed it back to the controller, which can realize the correction of the rotation angle and make the rotation of the lamp head 12 more accurate.

[0042] In some embodiments, the main adjustment module 8 is a gear adjustment mechanism or a worm gear transmission mechanism; the first adjustment module 9 is a gear adjustment mechanism or a worm gear transmission mechanism; and the second adjustment module 10 is a gear adjustment mechanism or a worm gear transmission mechanism. In specific applications, the specific structure of any one of the main adjustment module 8, the first adjustment module 9, and the second adjustment module 10 can be a gear adjustment mechanism or a worm gear transmission mechanism, and can be adjusted and set according to cost factors or other requirements.

[0043] In some embodiments, the main adjustment module 8, the first adjustment module 9, and the second adjustment module 10 are all gear adjustment mechanisms; the gear adjustment mechanism includes a drive motor, a drive wheel connected to the drive motor, and a driven gear set driven by the drive wheel; one of the driven gear sets is fixedly connected to a main connecting shaft for driving the first bracket 4, the second bracket 5, and each lamp head 12 to rotate synchronously relative to the fixed bracket 3, and the main connecting shaft can be connected to the first bracket 4 (in another embodiment, the main connecting shaft can be connected to the second bracket 5); another driven gear set is fixedly connected to a first connecting shaft for driving the first lamp head 1 to rotate relative to the first bracket 4 and the second bracket 5, and the first connecting shaft is connected to the first lamp head 1; and a third driven gear set is fixedly connected to a second connecting shaft, which drives the second lamp head 2 to rotate relative to the first bracket 4 and the second bracket 5, and the second connecting shaft is connected to the second lamp head 2.

[0044] In some embodiments, the transmission gear set comprises at least one gear reduction module, the gear reduction module comprises a first driven gear in transmission connection with the driving wheel, a second driven gear coaxially arranged with the first driven gear, and a third transmission gear in transmission connection with the second driven gear; the number of teeth of the second driven gear is greater than that of the first driven gear, and the number of teeth of the third transmission gear is greater than that of the second driven gear, so as to achieve multi-stage reduction and more accurate rotation angle adjustment; or the gear reduction module is a first driven gear meshing with the driving wheel, the number of teeth of the first driven gear is greater than that of the driving wheel, so as to also achieve reduction, but the reduction is limited.

[0045] As a further improvement of the technical solution, the main adjustment module 8, the first adjustment module 9 and the second adjustment module 10 are all worm gear mechanisms; the worm gear mechanism comprises a driving motor, a worm connected to the driving motor, and a worm wheel in transmission connection with the worm; one of the worm wheels is fixedly connected with a main connecting shaft for driving the first support 4, the second support 5 and each of the lamp heads 12 to rotate synchronously relative to the fixed support 3, and the main connecting shaft is connected with the first support 4 (in another embodiment, the main connecting shaft can be connected with the second support 5); another worm wheel is fixedly connected with a first connecting shaft for driving the first lamp head 1 to rotate relative to the first support 4 and the second support 5, and the first connecting shaft is connected with the first lamp head 1; and the other worm wheel is fixedly connected with a second connecting shaft for driving the second lamp head 2 to rotate relative to the first support 4 and the second support 5, and the second connecting shaft is connected with the second lamp head 2.

[0046] The application also provides a lighting system, as shown in the drawings, which comprises at least two lighting devices as described above, and each of the lighting devices is arranged in sequence and adjacent to each other, and each of the lamp heads 12 of the lighting devices is used for pointing to an irradiation object, or the effective irradiation areas corresponding to adjacent lighting devices overlap each other, and the combination of each of the effective irradiation areas completely covers a designated irradiation area. Figure 7 In this embodiment, the lighting system has two lighting devices, which jointly irradiate the irradiation area, and the distance measuring module 6 is directed to a set irradiation point (in this embodiment, since the effective irradiation angle of the lamp head 12 is fixed, i.e., the effective irradiation area is unchanged, each of the lighting devices only needs to cover half of the irradiation area (one of the lighting devices covers the irradiation areas S1+S2 with the effective irradiation area, and the other lighting device covers the irradiation areas S3+S4 with the effective irradiation area), i.e., the light beams of each of the laser modules are directed to the middle part of the respective irradiation area, i.e., the light rays of each of the lamp heads 12 cover one quarter of the irradiation area, so as to prevent the generation of dark areas due to improper angle adjustment, to adjust the irradiation area through the rotation angle of each of the lamp heads 12, to maximize the effective utilization of light, and to eliminate dark spots.

[0047] The present invention also provides a method for controlling a lighting device, such as... Figure 9 As shown, the control method is used to control the above-mentioned lighting device, including a distance measuring module adjustment step, a distance measuring step, and an output and adjustment step.

[0048] The ranging module adjustment steps involve adjusting the ranging module 6 and the lamp head 12 to rotate synchronously, so that the ranging module 6 faces the set illumination point; in specific applications, the initial state of the lighting device is as follows: Figure 4 As shown, the laser module and the lamp head 12 rotate synchronously (e.g., Figure 5 As shown), the laser module is oriented toward the set illumination point; more specifically, by simply connecting the control module 7 wirelessly to the control module 7 via a mobile phone or other terminal, the terminal can be controlled to select functions (projection function or floodlight function) to trigger the adjustment modules of the lighting fixture to adjust the rotation of the lamp head. Alternatively, a controller can be set up and connected to the control module 7, which can also trigger the rotation adjustment of the lamp head.

[0049] In the distance measurement step, the distance measurement module 6 measures the distance L2 between the distance measurement module 6 and the set illumination point.

[0050] In the output and adjustment steps, the control module 7 outputs the rotation angle of the lamp head 12 based on the measured distance, and the adjustment module adjusts the rotation of each lamp head 12 so that the optical axis of the lamp head 12 points to the set illumination point (e.g., ...). Figure 7 (As shown). It should be noted that since the distance L1 between the ranging module 6 and the two lamp heads 12, and the vertical distance d between the lamp head 12 and the ranging module 6 are both fixed parameters, the measured distance is L2, and L3 (i.e., L2-d) can be obtained. Furthermore, the rotation angle α required for each lamp head 12 to rotate to the set illumination point can be obtained according to the trigonometric function relationship.

[0051] The present invention provides a lighting device, lighting system, and control method. A distance measuring module 6 measures the distance between itself and a set illumination point. A control module 7 controls the distance measuring module 6 and the lamp heads 12 to rotate synchronously until the distance measuring module 6 faces the set illumination point. Based on the distance measured by the distance measuring module 6, the control module 7 outputs the rotation angle required for each lamp head 12 to jointly illuminate the set illumination point. An adjustment module is mounted on the mounting bracket 345 and is used to adjust the rotation of each lamp head 12 according to the required rotation angle. This allows each lamp head 12 to jointly illuminate the set illumination point, achieving a floodlight function. Alternatively, each lamp head 12 can rotate separately to make the illumination areas overlap without dark spots, achieving a floodlight function.

[0052] The above merely provides the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement or improvement made in the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An illumination device, characterized by The application relates to a lamp head adjusting device, which comprises the following parts: a lamp head, at least two of which are provided; a mounting support, each lamp head being connected to the mounting support and being rotatable relative to the mounting support; a distance measuring module, which is used for measuring the distance between the distance measuring module and a set irradiation point; a control module, which is used for controlling the distance measuring module and the lamp head to rotate synchronously so that the distance measuring module faces the set irradiation point, and outputting the rotation angle of each lamp head required for the lamp head to face the set irradiation point according to the measured distance of the distance measuring module; an adjusting module, which is arranged on the mounting support and is used for adjusting the rotation of each lamp head according to the required rotation angle, and which is connected to the control module and the lamp head respectively; the mounting support comprises a fixed support, a first support and a second support, the first support and the second support are rotatably connected to the two ends of the fixed support, one end of each lamp head is connected to the first support, and the other end of each lamp head is connected to the second support; the distance measuring module is arranged on the first support or the second support, and the adjusting module comprises a main adjusting module used for adjusting the rotation of the distance measuring module relative to the fixed support; the lamp head is provided with two lamp heads, which are a first lamp head and a second lamp head, the first support comprises a first left connecting rod connected to the first lamp head and a first right connecting rod connected to the second lamp head, the first left connecting rod and the first right connecting rod are rotatably connected to one end of the fixed support, the second support comprises a second left connecting rod connected to the first lamp head and a second right connecting rod connected to the second lamp head, and the second left connecting rod and the second right connecting rod are rotatably connected to the other end of the fixed support.

2. The illumination device of claim 1, wherein The distance measuring module is connected to the outer side of the mounting support; the distance measuring module is a laser module; or the distance measuring module comprises an ultrasonic module and a light source component connected to the ultrasonic module.

3. The illumination device of claim 1, wherein The adjusting module further comprises a first adjusting module used for adjusting the rotation of the first lamp head relative to the first support and the second support, and a second adjusting module used for adjusting the rotation of the second lamp head relative to the first support and the second support; the fixed support comprises a transverse support arm and longitudinal support arms connected to the two ends of the transverse support arm, the control module is arranged in the transverse support arm, and the main adjusting module is arranged in the longitudinal support arm; the first support is connected to one of the longitudinal support arms, and the second support is connected to the other longitudinal support arm; the first adjusting module is arranged on the first left connecting rod or the second left connecting rod, and the second adjusting module is arranged on the first right connecting rod or the second right connecting rod.

4. The illumination device of claim 3, wherein The main adjusting module, the first adjusting module and the second adjusting module are all gear adjusting mechanisms; the gear adjusting mechanism comprises a driving motor, a driving gear connected to the driving motor and a driven gear set in transmission connection with the driving gear.

5. The illumination device of claim 4, wherein ​ One of the driven gear sets is fixedly connected with a main connecting shaft for driving the first support, the second support and each of the lamp heads to synchronously rotate relative to the fixed support, the main connecting shaft being connected with the first support or / and the second support; another of the driven gear sets is fixedly connected with a first connecting shaft for driving the first lamp head to rotate relative to the first support and the second support, the first connecting shaft being connected with the first lamp head; and still another of the driven gear sets is fixedly connected with a second connecting shaft for driving the second lamp head to rotate relative to the first support and the second support, the second connecting shaft being connected with the second lamp head.

6. The illumination device of claim 5, wherein The transmission gear set comprises at least one gear reduction module, the gear reduction module comprising a first driven gear in transmission connection with the driving gear, a second driven gear coaxially arranged with the first driven gear, and a third transmission gear in transmission connection with the second driven gear; the second driven gear has a larger number of teeth than the first driven gear, and the third transmission gear has a larger number of teeth than the second driven gear; or, The gear reduction module is a first driven gear meshing with the driving gear, the first driven gear having a larger number of teeth than the driving gear.

7. The illumination device of claim 4, wherein The main adjusting module, the first adjusting module and the second adjusting module are all worm and gear transmission mechanisms; The worm and gear transmission mechanism comprises a driving motor, a worm connected with the driving motor, and a worm gear in transmission connection with the worm; One of the worm gears is fixedly connected with a main connecting shaft for driving the first support, the second support and each of the lamp heads to synchronously rotate relative to the fixed support, the main connecting shaft being connected with the first support or / and the second support; another of the worm gears is fixedly connected with a first connecting shaft for driving the first lamp head to rotate relative to the first support and the second support, the first connecting shaft being connected with the first lamp head; and still another of the worm gears is fixedly connected with a second connecting shaft for driving the second lamp head to rotate relative to the first support and the second support, the second connecting shaft being connected with the second lamp head.

8. A lighting system, characterized by The lighting system comprises at least two lighting devices as claimed in any one of claims 1 to 7, each of the lighting devices being sequentially and adjacently arranged, each of the lamp heads of the lighting devices being used for pointing at an irradiation object, or the effective illumination areas corresponding to adjacent lighting devices overlap each other, and the combined effective illumination areas completely cover a designated illumination area.

9. A control method of a lighting device, characterized by, The control method is used for controlling the lighting device as claimed in any one of claims 1 to 7, and comprises the following steps: The distance measuring module adjusting step adjusts the synchronous rotation of the distance measuring module and the lamp heads, so that the distance measuring module faces a set irradiation point; The distance measuring step measures the distance between the distance measuring module and the set irradiation point; The outputting and adjusting step outputs the rotation angle of the lamp heads according to the measured distance, and adjusts the rotation of each of the lamp heads so that the optical axis of the lamp heads points to the set irradiation point.

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