An apparatus for triggering a photographic robot arm with DMX

Abstract

The utility model discloses a kind of devices for triggering photographic mechanical arm operation with DMX, it is related to DMX control device field, including mechanical arm control unit, DMX signal output unit and signal conversion unit, the signal conversion unit includes the outer frame of being provided with signal input end and signal output end, the outer frame one side is fixed with fixed frame, cable clamping mechanism is slidably installed in the fixed frame, the cable clamping mechanism includes slider, the slider one end telescopic setting has U-shaped elastic sheet, the U-shaped elastic sheet is used to support the cable of signal input end and signal output end connection, by using DMX dimming system, the operation and stop of mechanical arm can be accurately controlled, unnecessary waiting time and resource waste are avoided, in addition, the existence of time synchronization system ensures the synchronism of light scheduling and camera, further improves the stability and reliability of entire shooting process.

Description

Technical Field

[0001] This utility model relates to the field of DMX control devices, and in particular to a device for triggering the operation of a camera robotic arm using DMX. Background Technology

[0002] In film and television production, the use of robotic arms is a common practice. In the modern photography industry, whether it's still product photography (such as capturing high-definition details of jewelry and electronic products), dynamic film framing (such as panning and tilting camera movements in movies), or real-time image tracking in live broadcasts, robotic arms have gradually replaced traditional manual operations and become a core device for improving shooting efficiency and image quality due to their high precision and stability.

[0003] However, synchronization issues between lighting and the camera often result in an inability to precisely control the operation and shutdown of the lighting system. This asynchrony leads to significant time wastage and can negatively impact the accuracy and efficiency of the entire shooting process.

[0004] Therefore, it is necessary to propose a device that uses DMX to trigger the operation of a camera robotic arm to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a device for triggering the operation of a camera robotic arm using DMX, in order to solve the problem that, due to the synchronization problem between lighting scheduling and the camera, it is often impossible to accurately control the operation and stopping of the lighting system. This asynchrony leads to a lot of wasted time and may affect the accuracy and efficiency of the entire shooting process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for triggering the operation of a photographic robotic arm using DMX, comprising a robotic arm control unit, a DMX signal output unit, and a signal conversion unit. The signal conversion unit includes an outer frame with a signal input end and a signal output end. A fixed frame is fixed to one side of the outer frame, and a cable clamping mechanism is slidably installed inside the fixed frame.

[0007] The cable clamping mechanism includes a slider, one end of which is provided with a U-shaped elastic piece for telescopically supporting the cable connecting the signal input end and the signal output end.

[0008] The outer frame is equipped with a conversion main board, and through slots are opened on both sides of the outer frame. Telescopic blocks are elastically provided on both sides of the slider, and the telescopic blocks extend into the through slots.

[0009] Preferably, the top of the slider is provided with a telescopic groove, and an extension block is slidably installed in the telescopic groove, and the U-shaped elastic sheet is fixed to the top of the extension block;

[0010] The outer side of the slider is threaded with a fixing screw, one end of which is pressed against the outer surface of the protruding block. A connecting plate is fixed between the outer frame and the fixed frame.

[0011] Preferably, the signal input terminal and the signal output terminal are the robotic arm signal interface and the DMX interface, respectively.

[0012] Preferably, the DMX signal output unit is a DMX lighting console, used to output DMX format control signals carrying trigger logic, wherein the DMX format control signals contain instruction codes for at least one independent channel.

[0013] Preferably, the robotic arm control unit is detachably connected to the camera robotic arm. The robotic arm control unit has a built-in trajectory preset module and an execution drive module. The trajectory preset module is used to preset at least one shooting trajectory of the camera robotic arm through parameter configuration or programming. The execution drive module is used to receive external trigger commands and drive the camera robotic arm to run along the preset trajectory. The signal conversion unit is communicatively connected to the DMX signal output unit and the robotic arm control unit, respectively.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. By using the DMX dimming system, the operation and stopping of the robotic arm can be precisely controlled, avoiding unnecessary waiting time and resource waste. In addition, the existence of the time synchronization system ensures the synchronization between lighting scheduling and camera, further improving the stability and reliability of the entire shooting process. The robotic arm is connected to the signal input terminal. When the robotic arm starts running, it sends a signal to the signal input terminal. The motherboard converts the robotic arm command into a DMX system signal, which is then transmitted to the lighting console at the signal output terminal to achieve real-time linkage between the robotic arm and lighting control. The same principle can also be used to control the operation of the robotic arm using the lighting console.

[0016] 2. The cable clamping mechanism uses a U-shaped elastic sheet to precisely support and fix the cables connecting the signal input and signal output ends. The opening width of the U-shaped elastic sheet can be adaptively adjusted according to the cable diameter, which can limit multiple cables to independent support positions and effectively prevent the cables from getting tangled due to long-term stacking.

[0017] 3. At the same time, the cable clamping mechanism can be flipped and installed in the fixed frame to clamp the cable at the bottom. The cable clamping mechanism can slide freely in the fixed frame to adjust its position. Combined with the telescopic adjustment function of the extension block, it can adapt to the layout requirements of cables of different lengths and directions. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the device for triggering the operation of a photographic robotic arm using DMX, as described in this utility model.

[0019] Figure 2 This is a schematic diagram of the cable clamping mechanism of this utility model.

[0020] In the diagram: 1. Outer frame; 2. Signal input terminal; 3. Signal output terminal; 4. Connecting plate; 5. Fixing frame; 6. Cable clamping mechanism; 7. Slider; 8. Telescopic block; 9. Extending block; 10. U-shaped elastic sheet; 11. Clamping screw. Detailed Implementation

[0021] This utility model provides, for example Figures 1-2 The device shown is a DMX-triggered camera robotic arm operation device, including a robotic arm control unit, a DMX signal output unit and a signal conversion unit. The signal conversion unit includes an outer frame 1 with a signal input terminal 2 and a signal output terminal 3. A fixed frame 5 is fixed on one side of the outer frame 1, and a cable clamping mechanism 6 is slidably installed in the fixed frame 5.

[0022] The cable clamping mechanism 6 includes a slider 7, one end of which is provided with a U-shaped elastic piece 10 for telescopically supporting the cable connecting the signal input terminal 2 and the signal output terminal 3.

[0023] The outer frame 1 houses a conversion main board, and through slots are provided on both sides of the outer frame 1. Telescopic blocks 8 are elastically provided on both sides of the slider 7, extending into the through slots. Specifically, grooves are provided on both sides of the slider 7, and springs are installed between the grooves and the telescopic blocks 8. This ensures that the telescopic blocks 8 can stably extend into the through slots of the outer frame 1 under normal conditions, achieving the positioning of the cable clamping mechanism 6 within the fixed frame 5.

[0024] The top of the slider 7 is provided with a telescopic groove, and the extension block 9 is slidably installed in the telescopic groove. The U-shaped elastic piece 10 is fixed to the top of the extension block 9.

[0025] The cable clamping mechanism 6 uses a U-shaped elastic sheet 10 to precisely support and fix the cable connecting the signal input terminal 2 and the signal output terminal 3. The opening width of the U-shaped elastic sheet 10 can be adaptively adjusted according to the cable diameter, which can limit multiple cables to independent support positions, effectively preventing the cables from tangling due to long-term stacking. Especially in the signal conversion unit, where multiple types of cables such as DMX signal lines and robotic arm control signal lines are arranged in parallel, the isolation effect of this mechanism can prevent signal crosstalk between different cables, further ensuring the stability of DMX signal transmission and reducing signal attenuation or bit error problems caused by cable tangling.

[0026] When it is necessary to separate the cable clamping mechanism 6 from the fixing frame 5, simply squeeze the telescopic blocks 8 on both sides of the slider 7 with your fingers simultaneously. This will cause the telescopic blocks 8 to retract into the groove of the slider 7, overcoming the spring force. At this point, the slider 7 and the fixing frame 5 are released from their positioning, and the cable clamping mechanism 6 can be directly removed from the fixing frame 5.

[0027] Meanwhile, the cable clamping mechanism 6 can be flipped and installed inside the fixed frame 5 to clamp the cable at the lower end. The cable clamping mechanism 6 can slide freely within the fixed frame 5 to adjust its position. Combined with the telescopic adjustment function of the extension block 9, it can adapt to the layout requirements of cables of different lengths and directions. For example, when there is a bend in the cable between the signal input terminal 2 and the signal output terminal 3, the slider 7 can be moved to the bend in the cable, and the U-shaped elastic sheet 10 can be used to support the bend to avoid signal transmission loss caused by excessive bending of the cable.

[0028] The outer side of the slider 7 is threaded with a fixing screw 11. One end of the screw 11 is pressed against the outer surface of the protruding block 9. A connecting plate 4 is fixed between the outer frame 1 and the fixed frame 5.

[0029] Signal input terminal 2 and signal output terminal 3 are respectively the robotic arm signal interface, DMX interface, and signal conditioning module. The dedicated DMX interface is a XLR female connector or a three-pin aviation connector, used to establish a physical connection with the DMX signal output unit and receive DMX format control signals; the signal conditioning module is integrated on the signal conversion motherboard, used to perform differential noise reduction and level calibration on the received DMX format control signals; the signal conversion motherboard has a built-in signal decoding chip, used to decode the conditioned DMX format control signals and convert them into digital trigger commands that can be recognized by the robotic arm control unit; the robotic arm signal interface is an I / O signal interface, used to transmit the converted digital trigger commands to the execution drive module of the robotic arm control unit;

[0030] The signal conversion unit also includes an instruction storage module and a status feedback unit. The instruction storage module is an EEPROM chip that is electrically connected to the signal conversion motherboard. It is used to pre-store at least 5 sets of correspondence tables between "DMX channel encoding and robotic arm action instructions". After receiving the DMX format control signal, the signal conversion motherboard calls the correspondence table to complete the signal conversion without real-time configuration.

[0031] The status feedback unit includes a status acquisition module and a feedback conversion module. The status acquisition module is connected to the position sensor or motion encoder of the camera robot arm and is used to acquire the real-time position, running speed and trajectory completion status signals of the camera robot arm. The feedback conversion module is integrated on the signal conversion motherboard and is used to encode the acquired status signals into DMX format feedback signals and transmit them back to the DMX signal output unit through the DMX dedicated interface to realize trigger-feedback closed-loop control.

[0032] The power supply unit is electrically connected to the robotic arm control unit, DMX signal output unit, and signal conversion unit. The power supply unit includes a switching power supply, a power input port, and a power switch. The power input port is a three-pin connector for connecting to an external AC220V power supply. The switching power supply is used to convert the AC220V voltage to a DC24V or DC12V adapter voltage. The power switch is used to control the on / off state of the power supply circuit of the entire device.

[0033] The status feedback unit also includes a status indicator module, which is an LED light group embedded in the front panel of the outer shell support unit. The LED light group is electrically connected to the status acquisition module and is used to intuitively display the four states of the camera robot arm, namely "standby", "running", "emergency stop" and "track completed", through different colored lights.

[0034] The DMX signal output unit is a DMX lighting console used to output DMX format control signals carrying trigger logic. The DMX format control signals contain instruction codes for at least one independent channel.

[0035] The robotic arm control unit is detachably connected to the camera robotic arm. The robotic arm control unit has a built-in trajectory preset module and an execution drive module. The trajectory preset module is used to preset at least one shooting trajectory of the camera robotic arm through parameter configuration or programming. The execution drive module is used to receive external trigger commands and drive the camera robotic arm to run along the preset trajectory. The signal conversion unit is connected to the DMX signal output unit and the robotic arm control unit respectively.

[0036] The robotic arm control unit also has a built-in emergency stop linkage module. The emergency stop linkage module is electrically connected to the signal conversion unit. When the DMX format control signal received by the signal conversion unit contains an "emergency stop code", the emergency stop linkage module can directly cut off the power output of the execution drive module, forcing the camera robotic arm to stop running.

[0037] The following is the program code that the robotic arm starts running after receiving a command from the DMX system and recognizing the signal.

[0038] Python

[0039] # Import the required libraries

[0040] importtime

[0041] # Define the robotic arm class

[0042] classRoboticArm:

[0043] def__init__(self):

[0044] self.position = 0

[0045] defmove_up(self):

[0046] self.position += 1

[0047] print("The robotic arm has moved up to position", self.position)

[0048] defmove_down(self):

[0049] self.position -= 1

[0050] print("The robotic arm has moved down to position", self.position)

[0051] defmove_left(self):

[0052] self.position -= 1

[0053] print("The robotic arm has moved to the left, self.position")

[0054] defmove_right(self):

[0055] self.position += 1

[0056] print("The robotic arm has moved to the right, position", self.position)

[0057] # Create a robotic arm object

[0058] robotic_arm = RoboticArm()

[0059] #Simulate a DMX dimming console to send I / O signals to control the operation of the robotic arm

[0060] whileTrue:

[0061] command = input("Please enter the command (up, down, left, right):")

[0062] ifcommand=="up":

[0063] robotic_arm.move_up()

[0064] elifcommand=="down":

[0065] robotic_arm.move_down()

[0066] elifcommand=="left":

[0067] robotic_arm.move_left()

[0068] elifcommand=="right":

[0069] robotic_arm.move_right()

[0070] else:

[0071] print("Invalid command, please re-enter!")

[0072] time.sleep(1) # Pause for 1 second. The time interval can be adjusted as needed.

[0073] ```.

Claims

1. A device for triggering the operation of a photographic robotic arm using DMX, comprising a robotic arm control unit, a DMX signal output unit, and a signal conversion unit, wherein the signal conversion unit comprises an outer frame (1) having a signal input terminal (2) and a signal output terminal (3), characterized in that: A fixed frame (5) is fixed on one side of the outer frame (1), and a cable clamping mechanism (6) is slidably installed inside the fixed frame (5); The cable clamping mechanism (6) includes a slider (7), one end of which is provided with a U-shaped elastic piece (10), which is used to support the cable connecting the signal input end (2) and the signal output end (3); The outer frame (1) is provided with a conversion main board inside. The outer frame (1) has through slots on both sides. The slider (7) is provided with telescopic blocks (8) on both sides, and the telescopic blocks (8) extend into the through slots.

2. The device for triggering the operation of a photographic robotic arm using DMX according to claim 1, characterized in that: The top of the slider (7) is provided with a telescopic groove, and an extension block (9) is slidably installed in the telescopic groove. The U-shaped elastic sheet (10) is fixed to the top of the extension block (9). The outer side of the slider (7) is threaded with a fixing screw (11), one end of which is pressed against the outer surface of the protruding block (9), and a connecting plate (4) is fixed between the outer frame (1) and the fixing frame (5).

3. The device for triggering the operation of a photographic robotic arm using DMX according to claim 1, characterized in that: The signal input terminal (2) and the signal output terminal (3) are the robotic arm signal interface and the DMX interface, respectively.

4. The device for triggering the operation of a photographic robotic arm using DMX according to claim 1, characterized in that: The DMX signal output unit is a DMX lighting console used to output DMX format control signals carrying trigger logic. The DMX format control signals contain instruction codes for at least one independent channel.

5. The device for triggering the operation of a photographic robotic arm using DMX according to claim 1, characterized in that: The robotic arm control unit is detachably connected to the camera robotic arm. The robotic arm control unit has a built-in trajectory preset module and an execution drive module. The trajectory preset module is used to preset at least one shooting trajectory of the camera robotic arm through parameter configuration or programming. The execution drive module is used to receive external trigger commands and drive the camera robotic arm to run along the preset trajectory. The signal conversion unit is communicatively connected to the DMX signal output unit and the robotic arm control unit.

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