Stage lamp with posture auxiliary detection function

Abstract

The utility model discloses a stage lamp with posture auxiliary detection function, including a stage lamp with posture auxiliary detection function, including the lamp holder of producing light beam and support seat, and lamp holder is pivoted in support seat, still include the posture detection device of detecting lamp holder posture, provide driving force drive assembly and control unit, posture detection device installs in lamp holder, and posture detection device includes the gyroscope for detecting lamp holder inclination and / or roll angle, and posture detection device signal connection is in control unit, and control unit electric connection is in drive assembly to drive lamp holder relative to support seat rotation, and control unit picks up the posture information of posture detection device detected, and then adjusts the posture of lamp holder. The gyroscope in posture detection device can real -time detection and correct the inclination and roll angle of lamp holder, effectively promote the posture correction efficiency of stage lamp, reduce the angle error due to the posture offset, make lamp holder can accurate projection in target plane, improve the reliability of lamp.

Description

Technical Field

[0001] This utility model relates to the field of stage lighting technology, and more specifically, to a stage light with posture assistance detection function. Background Technology

[0002] In cultural and entertainment settings such as stage performances, large concerts, and theater shows, stage lighting is a core component for creating visual effects. Its precise beam projection and dynamic adjustment are crucial for enhancing the performance atmosphere and highlighting the focal point. To achieve wide-range, multi-angle beam coverage, stage lights are often installed on high trusses, on the roof of venues, or on distant side stages. In these installation scenarios, the rotational accuracy of the lamp head has a significant impact on the accuracy of the beam's landing point. Even a slight rotational deviation of the lamp head can amplify the deviation in the beam's landing point on the target plane after a projection distance of several meters to tens of meters. This directly causes the beam to deviate from the preset target position, severely affecting the performance quality.

[0003] Currently, the mainstream stage lighting head rotation control solution in the industry relies on encoders to detect and count the rotation angle of the lamp head, and then feeds the signal back to the control unit to control the lamp head's posture. However, this solution has accuracy deficiencies in practical applications and is difficult to meet the requirements of high-demand stage scenarios.

[0004] Currently, the detection accuracy of existing encoders is limited by their own hardware performance. Even photoelectric encoders have an accuracy of approximately 0.1°, and this error is further amplified in long-distance projection scenarios. Secondly, mechanical errors are unavoidable during the manufacturing and assembly of stage lights, such as misalignment between the support base and the lamp head's rotation axis, and assembly gaps. This can cause a misalignment between the actual rotation angle of the lamp head and the encoder's detection angle, exacerbating the rotational deviation. Furthermore, long-term use of the encoder will result in cumulative angular deviations. The small errors detected in each rotation accumulate, and with increasing usage time, the overall rotational accuracy of the lamp head continues to decline, eventually causing the beam's landing point to deviate beyond acceptable limits. To maintain basic operation, frequent manual calibration is required, which increases maintenance costs and operational complexity. Therefore, existing solutions are insufficient to meet the stringent requirements for lamp head rotational accuracy in long-distance installation scenarios, and the beam landing point deviation problem urgently needs to be solved. Utility Model Content

[0005] To overcome at least one of the defects described in the prior art, this utility model provides a stage lamp with posture auxiliary detection function. The posture detection device can accurately detect the posture of the lamp head, solving the projection angle deviation caused by the posture deviation of the stage lamp, thereby reducing the serious impact on the stage effect.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a stage lamp with posture auxiliary detection function, including a lamp head that generates a light beam and a support base, the lamp head being pivotally connected to the support base, and further including a posture detection device for detecting the posture of the lamp head, a drive component that provides driving force, and a control unit. The posture detection device is installed on the lamp head, and the posture detection device includes a gyroscope for detecting the tilt and / or roll angle of the lamp head. The posture detection device is signal-connected to the control unit, and the control unit is electrically connected to the drive component to drive the lamp head to rotate relative to the support base. The control unit picks up the posture information detected by the posture detection device and then adjusts the posture of the lamp head.

[0007] By installing the attitude detection device in the lamp head, the attitude information of the lamp head can be detected and fed back to the control unit. The control unit is electrically connected to the drive assembly. After reading the attitude information from the attitude detection device, it determines whether the lamp head has experienced attitude deviation. If deviation occurs, the drive assembly drives the lamp head to rotate relative to the support base for correction. The gyroscope in the attitude detection device can detect and correct the tilt and roll angle of the lamp head in real time, effectively improving the attitude correction efficiency of the stage light, reducing the angle error caused by attitude deviation, enabling the lamp head to accurately project onto the target plane, improving the reliability of the lighting fixture, and maintaining the consistency and accuracy of the stage effect.

[0008] Furthermore, the attitude detection device also includes an accelerometer for detecting the motion state of the lamp head. The addition of the accelerometer enhances the ability to detect the motion state of the lamp head, and improves the calibration accuracy, dynamic response, and detection stability of the control unit for the lamp head.

[0009] Furthermore, the attitude detection device also includes a magnetometer that detects the absolute orientation of the lamp head based on the Earth's magnetic field. Adding the magnetometer to the attitude detection device allows for accurate detection of the absolute orientation of the lamp head based on the Earth's magnetic field, enhancing calibration accuracy and improving calibration efficiency.

[0010] Furthermore, the system also includes a rotary encoder for detecting the rotation angle information of the lamp head relative to the support base. The control unit is electrically connected to the rotary encoder and picks up the detected rotation angle information, integrating it with the picked-up attitude information to correct the attitude of the lamp head. Most stage lights on the market have lamp heads that can rotate more than 360° relative to the support base. Using the rotary encoder, the cumulative rotation degree of the lamp head can be detected, and preliminary rotation angle information can be fed back to the control unit. Subsequently, the attitude detection device is used to accurately detect the attitude of the lamp head, and the attitude information is transmitted to the control unit. After reading and judging the information, the control unit can adjust the attitude of the lamp head, thereby making the angle of the lamp head more accurate.

[0011] Furthermore, the rotary encoder is a photoelectric encoder. The photoelectric encoder detects the rotation angle using optical sensing technology, and utilizes its built-in light source and photosensitive sensor to sense changes in the scale of the encoder disk, converting the mechanical rotation into an electrical signal output. This avoids the problem of the rotary encoder generating a magnetic field that interferes with the attitude detection device. At the same time, the photoelectric encoder technology is mature and has a low cost.

[0012] Furthermore, the lamp head has a light outlet and a light source located away from the light outlet and mounted at the bottom of the lamp head. The light source generates a beam with a principal optical axis, and the attitude detection device is mounted close to the principal optical axis. This arrangement makes the coordinates of the gyroscope closer to the initial coordinates of the lamp head, thereby enabling the control unit to more easily and efficiently read and convert the actual attitude of the lamp head, achieving convenient and accurate calibration of the lamp head.

[0013] Furthermore, the lamp head also includes an effect component for intercepting the light beam and producing specific lighting effects. By installing the effect component in the lamp head, the lighting effects projected by the stage light can be enriched, and combined with the precise projection of the lamp head, high-quality stage effects can be achieved efficiently.

[0014] Furthermore, the support base includes a U-shaped arm pivotally connected to the lamp head and a housing for supporting the rotation of the U-shaped arm. The lamp head and the U-shaped arm, and the U-shaped arm and the housing are respectively pivotally connected via a rotating assembly. The lamp head can rotate relative to the housing around at least two dimensions. In conjunction with the attitude detection device, the attitude of the lamp head is detected in real time for correction, making the rotation of the lamp head more precise and further enriching the light effect.

[0015] Furthermore, another attitude detection device for detecting the posture of the U-shaped arm is mounted on the U-shaped arm and close to the rotation axis of the rotating assembly. Since the U-shaped arm drives the lamp head to rotate relative to itself, the attitude detection device on the U-shaped arm ensures that the U-shaped arm can rotate accurately, thereby ensuring the projection angle of the lamp head.

[0016] Furthermore, the control unit is located inside the chassis. Because the lamp head integrates numerous effect modules, the space inside is very compact and not conducive to heat dissipation. Therefore, most stage lights on the market have their main control panel installed inside the chassis. Placing the control unit inside the chassis not only facilitates wiring between the attitude detection device and the drive components but also better solves the heat dissipation problem. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the lamp head equipped with the posture detection device in this utility model.

[0018] Figure 2 It is Figure 1 The diagram shows the structure of the lamp holder mounted on the support base.

[0019] Figure 3 This is a schematic diagram showing the connection between the control unit, the attitude detection device, the rotary encoder, and the drive assembly in this utility model.

[0020] In the picture: 100. Lamp head; 110. Effect component; 111. Pattern module; 112. Base plate; 113. Light-transmitting hole; 114. Light source; 200. Support base; 210. U-shaped arm; 220. Chassis; 300. Attitude detection device; 400. Drive component; 500. Control unit; 510. Gyroscope; 520. Accelerometer; 530. Magnetometer; 600. Rotary encoder; 700. Rotation component. Detailed Implementation

[0021] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0022] like Figures 1 to 3As shown, a stage light with attitude-assisted detection function includes a lamp head 100 that generates a light beam and a support base 200. The lamp head 100 is pivotally connected to the support base 200. The light head 100 also includes an attitude detection device 300 for detecting the attitude of the lamp head 100, a drive assembly 400 that provides driving force, and a control unit 500. The attitude detection device 300 is mounted on the lamp head 100 and includes a gyroscope 510 for detecting the tilt and / or roll angle of the lamp head 100. The attitude detection device 300 is signal-connected to the control unit 500, which is electrically connected to the drive assembly 400 to drive the lamp head 100 to rotate relative to the support base 200. The control unit 500 picks up the attitude information detected by the attitude detection device 300 and then adjusts the attitude of the lamp head 100.

[0023] By installing the attitude detection device 300 in the lamp head 100, the attitude information of the lamp head 100 can be detected and fed back to the control unit 500. The control unit 500 is electrically connected to the drive assembly 400. After reading the attitude information from the attitude detection device 300, it determines whether the lamp head 100 has experienced attitude deviation. If deviation occurs, the drive assembly 400 drives the lamp head 100 to rotate relative to the support base 200 for correction. The gyroscope 510 in the attitude detection device 300 can detect and correct the tilt and roll angle of the lamp head 100 in real time, effectively improving the attitude correction efficiency of the stage light, reducing the angle error caused by attitude deviation, enabling the lamp head 100 to accurately project onto the target plane, improving the reliability of the lighting fixture, and maintaining the consistency and accuracy of the stage effect.

[0024] Preferably, the lamp head 100 is pivotally connected to the support base 200 and rotates about its rotation axis, and the attitude detection device 300 can be installed on this axis.

[0025] Preferably, the drive assembly 400 includes a motor that provides driving force and a transmission component for transmitting the driving force.

[0026] In a preferred embodiment of this invention, the attitude detection device 300 further includes an accelerometer 520 for detecting the motion state of the lamp head 100. The addition of the accelerometer 520 enhances the detection capability of the motion state of the lamp head 100, and improves the calibration accuracy, dynamic response, and detection stability of the control unit 500 for the lamp head 100.

[0027] In a preferred embodiment of this invention, the attitude detection device 300 further includes a magnetometer 530 for detecting the absolute orientation of the lamp head 100 based on the Earth's magnetic field. Adding the magnetometer 530 to the attitude detection device 300 allows for accurate detection of the absolute orientation of the lamp head 100 based on the Earth's magnetic field, enhancing calibration accuracy and improving calibration efficiency.

[0028] Preferably, the attitude detection device 300 integrates the gyroscope 510, the accelerometer 520, and the magnetometer 530, enabling more accurate detection of the attitude of the lamp head 100. These three sensors are mounted on the same PCB board with an MCU and are connected to the control unit 500 via an RS-485 bus protocol.

[0029] In a preferred embodiment of this invention, a rotary encoder 600 is further included for detecting the rotation angle information of the lamp head 100 relative to the support base 200. The control unit 500 is electrically connected to the rotary encoder 600 and picks up the detected rotation angle information, integrating it with the picked-up posture information to correct the posture of the lamp head 100. Most stage lights on the market have a lamp head 100 that can rotate more than 360° relative to the support base 200. Using the rotary encoder 600, the cumulative rotation degree of the lamp head 100 can be detected, and the initial rotation angle information is fed back to the control unit 500. Subsequently, the posture of the lamp head 100 is accurately detected by the posture detection device 300, and the posture information is transmitted to the control unit 500. After reading and judging, the control unit 500 can adjust the posture of the lamp head 100, thereby making the angle of the lamp head 100 more accurate.

[0030] In a preferred embodiment of this invention, the rotary encoder is a photoelectric encoder. The photoelectric encoder detects the rotation angle using optical sensing technology, and utilizes its built-in light source 114 and photosensitive sensor to sense changes in the scale of the encoder disk, converting the mechanical rotation into an electrical signal output. This avoids the problem of the rotary encoder 600 generating a magnetic field that interferes with the attitude detection device 300. Furthermore, the photoelectric encoder technology is mature and has a low cost.

[0031] Optionally, the rotary encoder 600 can be a magnetic encoder, a capacitive encoder, or an inductive encoder. In this case, the magnetic field generated by the rotary encoder 600 can be isolated from the attitude detection device 300 to avoid mutual interference between the two.

[0032] In a preferred embodiment of this invention, the lamp head 100 has a light outlet and a light source 114 mounted at the bottom of the lamp head 100, away from the light outlet. The light source 114 generates a light beam with a principal optical axis, and the attitude detection device 300 is mounted close to the principal optical axis. This arrangement makes the coordinates of the gyroscope 510 closer to the initial coordinates of the lamp head 100, thereby enabling the control unit 500 to more easily and efficiently read and convert the actual attitude of the lamp head 100, achieving convenient and accurate calibration of the lamp head 100.

[0033] In a preferred embodiment of this invention, the lamp head 100 further includes an effect component 110 for intercepting the light beam and producing a specific light effect. By installing the effect component 110 in the lamp head 100, the light effect projected by the stage light can be enriched, and combined with the precise projection of the lamp head 100, high-quality stage effects can be achieved efficiently.

[0034] Preferably, the effect component 110 is an aperture module / patterning module located near the focal point of the light beam, the attitude detection module is mounted on the substrate 112 of the aperture module or the patterning module, and the substrate 112 has a light-transmitting hole 113 for the light beam to pass through, and the attitude detection module is mounted as close as possible to the light-transmitting hole 113.

[0035] In a preferred embodiment of this utility model, the support base 200 includes a U-shaped arm 210 pivotally connected to the lamp head 100 and a housing 220 for supporting the rotation of the U-shaped arm 210. The lamp head 100 and the U-shaped arm 210, and the U-shaped arm 210 and the housing 220 are respectively pivotally connected by a rotating component 700. The lamp head 100 can rotate relative to the housing 220 around at least two dimensions. With the cooperation of the attitude detection device 300, the attitude of the lamp head 100 is detected in real time for correction, making the rotation of the lamp head 100 more precise and further enriching the light effect.

[0036] Preferably, the rotating assembly 700 includes a bushing and a pivot shaft that are pivotally connected to each other. The lamp head 100 is selected to be connected to the pivot shaft or the bushing according to the design requirements. The U-shaped arm 210 is connected to another component.

[0037] In a preferred embodiment of this invention, another attitude detection device 300 for detecting the attitude of the U-shaped arm 210 is mounted on the U-shaped arm 210 and is installed close to the rotation axis of the rotating assembly 700. Since the U-shaped arm 210 drives the lamp head 100 to rotate relative to itself, the attitude detection device 300 is mounted on the U-shaped arm 210 to ensure accurate rotation of the U-shaped arm 210, thereby ensuring the projection angle of the lamp head 100.

[0038] Preferably, the chassis 220 is further provided with an attitude detection device 300 for detecting the attitude of the chassis 220, which is used to calibrate the installation position of the chassis 220 and detect whether there is an installation error caused by external vibration of the lamp body, so that it can be detected and manually adjusted in time.

[0039] In a preferred embodiment of this utility model, the control unit 500 is located inside the chassis 220. Because the lamp head 100 houses numerous effect modules, the space inside is very compact and not conducive to heat dissipation. Therefore, the main control panel of most stage lights on the market is installed inside the chassis 220. Placing the control unit 500 inside the chassis 220 not only facilitates wiring between the attitude detection device 300 and the drive assembly 400, but also better solves the heat dissipation problem.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A stage light with posture-assisted detection function, comprising a lamp head (100) for generating a light beam and a support base (200), wherein the lamp head (100) is pivotally connected to the support base (200), characterized in that, It also includes an attitude detection device (300) for detecting the attitude of the lamp head (100), a drive assembly (400) for providing driving force, and a control unit (500). The attitude detection device (300) is mounted on the lamp head (100). The attitude detection device (300) includes a gyroscope (510) for detecting the tilt and / or roll angle of the lamp head (100). The attitude detection device (300) is signal-connected to the control unit (500). The control unit (500) is electrically connected to the drive assembly (400) to drive the lamp head (100) to rotate relative to the support base (200). The control unit (500) picks up the attitude information detected by the attitude detection device (300) and then adjusts the attitude of the lamp head (100).

2. The stage light of claim 1, wherein The attitude detection device (300) also includes an accelerometer (520) for detecting the motion state of the lamp head (100).

3. Stage light according to claim 1 or 2, characterized in that The attitude detection device (300) also includes a magnetometer (530) for detecting the absolute orientation of the lamp head (100) based on the Earth's magnetic field.

4. The stage light of claim 1, wherein It also includes a rotary encoder (600) for detecting the rotation angle information of the lamp head (100) relative to the support base (200). The control unit (500) is electrically connected to the rotary encoder (600) and picks up the rotation angle information it detects. It integrates the detected posture information with the posture information to correct the posture of the lamp head (100).

5. The stage light of claim 4, wherein, The rotation encoder is a photoelectric encoder.

6. The stage light of claim 1, wherein, The lamp head (100) has a light outlet and a light source (114) located away from the light outlet and mounted at the bottom of the lamp head (100). The light source (114) generates a light beam with a main optical axis, and the attitude detection device (300) is mounted close to the main optical axis.

7. The stage light of claim 1, wherein The lamp head (100) also includes an effect component (110) for intercepting the light beam and producing a specific light effect.

8. The stage light of claim 1, wherein, The support base (200) includes a U-shaped arm (210) pivotally connected to the lamp head (100) and a housing (220) for supporting the rotation of the U-shaped arm (210). The lamp head (100) and the U-shaped arm (210) are respectively pivotally connected by a rotating assembly (700) and the U-shaped arm (210) and the housing (220).

9. The stage light of claim 8, wherein, Another attitude detection device (300) for detecting the attitude of the U-arm (210) is mounted on the U-arm (210) and is mounted close to the rotation axis of the rotating assembly (700).

10. The stage light of claim 8, wherein, The control unit (500) is located inside the chassis (220).

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