Routing switching control method and system of stage suspender equipment and electronic equipment

Abstract

The invention discloses a routing switching control method and system for stage suspender equipment and electronic equipment, and the method comprises the steps: S1, the construction and backup configuration of a dispatching center, S2, the reception of a suspender control instruction, S3, the determination of a routing decision and target equipment, S4, the instruction distribution and standby path preloading, and S5, the monitoring and fault switching of a main path. When the first pre-marshalling needs to be switched to the second pre-marshalling, the digital signal dispatching center calculates the speed difference, the position difference and the execution time sequence difference of the two sets of pre-marshalling control signals through the signal difference analysis unit, and the signal difference analysis unit can accurately recognize the key parameter difference between the two sets of pre-marshalling signals. According to the routing switching control method and system for the stage suspender equipment and the electronic equipment, preloading and real-time monitoring of the main path and the standby path are matched, the main path guarantees rapid execution of an instruction, the standby path can be directly started when a fault occurs, and running interruption of a suspender is avoided.

Description

Technical Field

[0001] This invention relates to the field of stage rigging equipment, and in particular to a routing and switching control method, system, and electronic equipment for stage rigging equipment. Background Technology

[0002] The routing and switching control of stage rigging equipment falls under the subfield of digital signal scheduling and intelligent routing decision-making within the field of stage machinery control technology. Specifically, it focuses on the collaborative control needs of multiple rigging devices in large-scale performance scenarios. Its core involves the deep application of software-defined networking technology in stage control scenarios. Through virtualized network resources, it enables dynamic reconstruction of signal transmission paths, supporting precise position control and dynamic adjustment of the loads on curtains, lighting, props, etc., by the rigging equipment in complex performances. Simultaneously, it must meet multi-dimensional technical requirements such as real-time performance, reliability, and scalability to adapt to the diverse and high-precision mechanical control needs of stage art creation.

[0003] In the existing technology system, at the command processing level, relying solely on real-time manual input or preset program execution lacks a collaborative optimization mechanism for these two types of commands, which can easily lead to operational delays or the risk of duplicate commands. Routing decision algorithms are mostly based on static rules or simple priority judgments, making it difficult to accurately match complex control scenarios with multiple devices and multiple paths, resulting in command execution deviations or resource waste. The switching between primary and backup paths lacks proactive preloading and real-time status monitoring, resulting in significant delays during fault switching, which may cause interruptions in boom operation and affect the continuity of the performance. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this application provides a method, system, and electronic equipment for routing and switching control of stage rigging equipment. These solutions address the following technical issues: First, at the instruction processing level, relying solely on real-time manual input or preset program execution lacks a collaborative optimization mechanism for both types of instructions, easily leading to operational delays or the risk of duplicate instructions. Second, routing decision algorithms are mostly based on static rules or simple priority judgments, making it difficult to accurately match complex control scenarios involving multiple devices and multiple paths, resulting in instruction execution deviations or resource waste. Third, the lack of proactive preloading and real-time status monitoring during primary / backup path switching causes significant delays during fault switching, potentially leading to rigging operation interruptions and affecting performance continuity.

[0005] To achieve the above objectives, this application provides the following technical solution: a routing and switching control method for stage rigging equipment, comprising: S1. Configuration and backup of the scheduling center: A digital signal dispatch center is constructed, which adopts software-defined networking technology. Through software-defined networking technology, the signal transmission path can be flexibly programmed and dynamically adjusted without relying on the physical reconstruction of hardware devices. This greatly improves the dispatch center's ability to adapt to multiple devices and multiple instructions in complex performance scenarios. At the same time, it is easy to upgrade or expand the dispatch function according to the performance needs in the future, reducing the cost of hardware replacement. S2. Receiving boom control commands: The digital signal dispatch center receives hoop control commands from at least one signal source, including a real-time control command source from the central control console and a pre-configured control command source stored in the preset performance script. The real-time control command source meets the need for manual temporary adjustment of hoop movements during the performance, such as in response to sudden changes in stage effects. The pre-configured control command source can store hoop movement commands corresponding to fixed performance processes in advance, avoiding repeated input of commands during the performance and improving control efficiency. The combination of the two signal sources ensures the diversity and flexibility of command sources, adapting to the control needs of different performance scenarios. S3. Routing Decision and Target Device Determination: The digital signal dispatch center makes routing decisions for boom control commands based on preset routing rules or real-time operation commands input by users, determining the target boom equipment to be controlled. Preset routing rules ensure the standardization and accuracy of command allocation in regular performance scenarios, reducing human error. Real-time operation commands input by users provide flexible adjustment space for special performance needs or emergencies. Through precise routing decisions, it can avoid mis-sending or missing commands, ensuring that every control command accurately points to the corresponding target boom equipment, improving the accuracy of equipment control. S4, Instruction Allocation and Backup Path Preloading: The digital signal dispatch center, based on routing decisions, dynamically distributes boom control commands to target boom devices via the primary path, while simultaneously preloading these commands into the backup path. The primary path serves as the regular command transmission channel, ensuring rapid transmission and execution of commands. The preloaded commands on the backup path allow for immediate activation of the backup path without reloading commands should a failure occur on the primary path, shortening failover time and preventing boom device downtime due to command loading delays, thus ensuring the continuity of the performance. S5. Primary path monitoring and failover: The system monitors the operating status of the primary path in real time. If the primary path is normal, it drives the target boom device to operate according to the boom control commands. If a fault is detected in the primary path, it immediately and seamlessly switches to the backup path to maintain the continuity of control over the target boom device. Real-time monitoring can promptly detect faults such as signal interruption, transmission delay, and data errors in the primary path. Under normal conditions, the primary path ensures efficient execution of commands. Seamless switching during faults minimizes the impact of path switching on the operation of the boom device, avoiding boom movement jamming, pausing, or malfunctions due to path faults, ensuring that the stage performance effect is not affected by equipment control problems.

[0006] Preferably, in step S3, routing decision and target device determination, the preset routing rules are executed by the routing strategy management module built into the digital signal dispatch center. The routing strategy management module supports weighted signal matching algorithms and load balancing algorithms. As the core of the preset routing rules, the routing strategy management module ensures the stability and efficiency of rule execution through specialized module design. The weighted signal matching algorithm can allocate instructions according to the importance of different signal sources or the priority of different boom devices, while the load balancing algorithm can evenly distribute multiple control instructions to different boom devices, avoiding overload operation of some devices due to excessive instructions, extending the service life of the devices, and ensuring the overall system operating efficiency. The specific process of routing decision-making includes: the routing policy management module collects the working status of each boom device and the command priority of each signal source in real time; dynamically adjusts the routing table according to the working status and command priority; and selects the target boom device that matches the boom control command from multiple boom devices. Real-time collection of device working status can avoid assigning commands to devices that are not working properly, ensuring the reliability of command execution; adjusting the routing table in conjunction with command priority can ensure that high-priority commands are executed first; and the process of selecting and matching target devices further improves the compatibility between commands and devices, avoiding device misoperation caused by command mismatch.

[0007] Preferably, in the construction and backup configuration of the dispatch center in S1, the digital signal dispatch center is configured with a dual-machine hot standby mechanism. The dual-machine hot standby mechanism includes a main controller and a backup controller. During the operation of the digital signal dispatch center, the main controller and the backup controller maintain real-time synchronization of control data, routing tables, and equipment status information, and monitor each other's operating status through a heartbeat detection signal. Real-time synchronization of control data, routing tables, and equipment status information ensures that the backup controller has system data completely consistent with the main controller when taking over the work, without the need for re-initialization or data loading, laying the foundation for seamless switching. The heartbeat detection signal is like "vital sign monitoring," which can determine in real time whether the main controller is operating normally. Once the main controller malfunctions, it can be detected immediately, avoiding system paralysis due to undetected main controller failure. When the main controller malfunctions, experiences data transmission anomalies, or suffers command execution failures, the backup controller takes over the signal scheduling function of the digital signal scheduling center within 50ms to prevent signal interruption. This extremely short 50ms takeover time is far shorter than the time interval perceptible to the human eye and also far shorter than the minimum time unit for boom movements in stage performances. It enables truly seamless switching, completely preventing signal interruptions caused by main controller failures, ensuring the continuous performance of the stage, and preventing the audience from noticing any control abnormalities.

[0008] Preferably, in S4, instruction allocation and backup path preloading, when it is necessary to switch from the first pre-group to the second pre-group, the digital signal dispatching center first calculates the speed difference, position difference, and execution timing difference of the control signals of the two pre-groups through the signal difference analysis unit. The signal difference analysis unit can accurately identify the key parameter differences between the two pre-group signals, providing data basis for whether to adjust the signals subsequently, and avoiding instability in the operation of the boom equipment due to direct switching caused by excessive differences between the two groups of signals; the speed difference, position difference, and execution timing difference are the core parameters affecting the continuity of boom actions, and accurate calculation is crucial. These parameters ensure accurate assessment of signal switching risks. If the speed difference is ≤0.1m / s and the position difference is ≤5cm, the control signal of the second pre-arranged group is directly preloaded to the backup path. When the parameter difference is within this range, the changes in the boom movements corresponding to the two sets of signals are gradual, and direct preloading will not impact equipment operation, ensuring both preloading efficiency and equipment operational stability. If the speed difference is >0.1m / s or the position difference is >5cm, the control signal of the second pre-arranged group is first gradient-adjusted by the signal smoothing processing unit, and then the adjusted signal is preloaded to the backup path. The signal smoothing processing unit can gradually reduce the parameter difference between the two sets of signals through gradient adjustment, enabling a smooth transition between the second and first pre-arranged group signals, avoiding sudden acceleration, deceleration, or positional changes in the boom equipment due to parameter abrupt changes, reducing mechanical wear, and preventing abrupt changes in stage effects.

[0009] Preferably, in step S4, instruction allocation and backup path preloading, after preloading is completed, the primary path is controlled to transition from the first pre-group signal to the second pre-group signal. The transition time is controlled within 0.5 to 1 second to ensure that the target hoisting equipment experiences no mechanical impact or significant operational jerking. The 0.5 to 1 second transition time has been verified through extensive experiments. This timeframe allows for rapid switching between the two signal groups, meeting the time requirements of the performance flow, while also giving the hoisting equipment sufficient time to adapt to signal changes. This avoids mechanical impact due to an excessively short transition time, or performance rhythm disruption due to an excessively long transition time. The absence of mechanical impact extends the equipment's lifespan, and the absence of significant operational jerking ensures smooth stage effects and enhances the audience's viewing experience.

[0010] The stage rigging equipment routing and switching control system, employing the aforementioned stage rigging equipment routing and switching control method, includes: a signal source and stage rigging equipment, with the signal source located externally to the stage rigging equipment; and a digital signal dispatch center employing software-defined networking (SDN) technology. The SDN establishes communication connections with both the signal source and the stage rigging equipment to receive command signals output by each signal source. SDN technology provides the SDN with flexible signal processing and distribution capabilities. Direct communication with the signal source and stage rigging equipment reduces intermediate transmission links, lowers signal loss and delay, and ensures that command signals can be transmitted quickly and accurately between the signal source and the equipment, thereby improving the overall system response speed. A redundancy design module is integrated into the digital signal dispatch center and the signal transmission path between the digital signal dispatch center and the stage rigging equipment. Integrating the redundancy design module into key components can comprehensively cover the core nodes of system operation, avoiding overall system failure due to the lack of redundancy design in a single component; integration in the dispatch center ensures its own operational reliability, while integration in the transmission path ensures uninterrupted command transmission, providing dual protection to enhance the system's fault tolerance.

[0011] Preferably, the redundancy design module includes backup paths, backup equipment, and duplex backup of core network equipment. This ensures uninterrupted system operation in the event of a single point of failure. Backup paths provide backup channels for signal transmission, backup equipment can replace the faulty primary equipment, and duplex backup of core network equipment ensures that core network nodes do not fail. The combination of these three elements forms comprehensive redundancy protection. No matter which single point of failure occurs, corresponding backup resources are available to promptly fill the gap, preventing the fault from spreading and causing system paralysis. The redundancy design module includes a main controller and a backup controller, both of which are communicatively connected to the digital signal dispatch center, forming a dual-machine hot standby mechanism. The dual-machine hot standby mechanism ensures that the main controller and the backup controller are always working together, providing a guarantee for rapid takeover in the event of a main controller failure and ensuring that the core control functions of the dispatch center are not interrupted; a real-time heartbeat detection link is established between the main controller and the backup controller to monitor the operating status of the main controller. The real-time heartbeat detection link provides continuous and rapid feedback on the main controller's operational status. Compared to periodic monitoring, it can detect anomalies in the main controller more promptly, buying time for the backup controller to take over. When the main controller malfunctions, the backup controller can seamlessly take over its functions, ensuring uninterrupted instruction signal processing and distribution in the digital signal dispatch center. Seamless takeover means that the dispatch center's instruction processing and distribution will not be interrupted due to controller switching, guaranteeing the continuity of the entire system's control flow and preventing any impact on stage performances.

[0012] Preferably, the routing strategy management module is communicatively connected to the digital signal dispatch center. The routing strategy management module supports weighted signal matching algorithms and load balancing algorithms. The communication connection with the dispatch center ensures that the routing strategy management module can transmit the adjusted routing rules to the dispatch center in a timely manner, ensuring that the instruction allocation is executed according to the latest rules. The support for weighted signal matching algorithms and load balancing algorithms makes routing decisions more flexible and scientific, and can optimize instruction allocation according to actual performance needs and equipment status. The routing strategy management module stores preset performance script routing configurations. These preset configurations allow for customized routing schemes to be developed in advance for different performance scripts, avoiding confusion and delays caused by setting routing rules on the fly during the performance. The module can obtain the real-time operating status of each stage rigging device and the priority of the output command signals from each signal source. Based on the real-time operating status and priorities, it dynamically adjusts the signal routing table and sends the adjusted table to the digital signal scheduling center to optimize command signal allocation. Obtaining real-time operating status and command priorities ensures that the routing table adjustment better reflects actual operating conditions, preventing commands from being assigned to unsuitable devices or delaying the execution of high-priority commands. Optimized command allocation improves equipment operating efficiency, reduces resource waste, and ensures the priority execution of critical commands, thereby enhancing the overall system control performance.

[0013] The electronic equipment for routing and switching of stage hoisting equipment adopts the aforementioned routing and switching control method for stage hoisting equipment, including: a digital signal scheduling device and a stage hoisting mechanism. The stage hoisting mechanism is connected to the digital signal scheduling device via a signal. The digital signal scheduling device includes an SDN controller group, a signal receiving device, and a signal distribution device. The signal receiving device is communicatively connected to multiple external signal sources. The signal receiving device is specifically responsible for receiving external signals and can simultaneously process instructions from multiple signal sources, avoiding signal reception confusion and improving the stability and efficiency of signal reception. The SDN controller group is electrically connected to the signal receiving device and the signal distribution device, respectively. As the core of the scheduling device, the SDN controller group realizes full-process control of signal reception, processing, decision-making and distribution through electrical connection with the receiving device and the distribution device, ensuring collaborative work between devices and improving overall scheduling efficiency. The signal distribution device is communicatively connected to multiple external stage hoisting mechanisms. The signal distribution device can accurately distribute the instructions made by the SDN controller group to the corresponding hoisting mechanisms, avoiding mis-sending of instructions. At the same time, it supports multiple devices to receive instructions simultaneously, meeting the needs of multiple hoists working collaboratively in complex performance scenarios. The digital signal scheduling equipment is electrically connected to a redundant design device, which includes a backup path device, a backup equipment mechanism, and a core network duplex backup mechanism. The backup path device, signal distribution equipment, and external stage rigging mechanism form a backup communication link. This backup communication link can be immediately activated in the event of a failure in the main communication link, ensuring uninterrupted command transmission between the signal distribution equipment and the rigging mechanism. The backup equipment mechanism and the core network duplex backup mechanism provide redundancy guarantees for the equipment and network core, respectively. Together, these three components constitute the redundant design device, comprehensively improving the system's fault tolerance and operational reliability.

[0014] Preferably, the SDN controller group is electrically connected to a routing policy management module. This module incorporates a signal matching algorithm, including a weighted matching algorithm and a load balancing algorithm, used to dynamically adjust the routing table based on the real-time operating status of the external stage rigging mechanism and the priority of control commands. The electrical connection between the SDN controller group and the routing policy management module ensures that the adjusted routing table can be quickly acquired and executed by the SDN controller group. Adjusting the routing table based on real-time operating status and command priority makes command allocation more targeted and reasonable, improving equipment operating efficiency and the reliability of command execution. The routing policy management module also includes a preset configuration storage unit. This unit stores the rigging control routing configurations corresponding to multiple performance scripts, supporting rapid retrieval of preset routing configurations according to performance needs. The preset configuration storage unit can store routing schemes for different performance scripts in advance, avoiding time waste and errors caused by temporary routing configuration during performances. The rapid retrieval function meets the need for quick adjustment of routing configurations when switching performance scenes, improving the system's flexibility and adaptability. The backup equipment mechanism in the redundant design equipment includes a main controller and a backup controller. The main controller and the backup controller operate synchronously to form a dual-machine hot standby mechanism. The synchronous operation of the main controller and the backup controller ensures that they have completely consistent operating data and status, laying the foundation for the backup controller to quickly and seamlessly take over the work when the main controller fails. The dual-machine hot standby mechanism greatly improves the reliability of the backup equipment mechanism. The backup equipment mechanism includes a heartbeat detection module, which is electrically connected to both the main controller and the backup controller to monitor the operating status of the main controller in real time. Through its electrical connection to the main and backup controllers, the heartbeat detection module can continuously acquire the operating information of the main controller in real time, promptly detect faults in the main controller, and prevent system interruptions due to undetected main controller malfunctions, ensuring that the backup equipment mechanism can function effectively at critical moments.

[0015] In summary, this application provides a routing and switching control method, system, and electronic equipment for stage rigging equipment, which have the following beneficial effects: The routing and switching control method, system, and electronic equipment of this stage rigging system utilize software-defined networking technology in its digital signal dispatch center. This allows for flexible adjustment of signal transmission paths without the need for physical hardware reconstruction, significantly improving adaptability to complex performance scenarios and facilitating future function upgrades while reducing hardware replacement costs. Simultaneously, it receives both real-time and pre-configured control commands, satisfying the need for temporary manual adjustments while avoiding repetitive command input, balancing flexibility and efficiency. Routing decisions ensure commands are accurately directed to the target equipment. Combined with primary and backup path preloading and real-time monitoring, the primary path guarantees rapid command execution, while the backup path can be directly activated in case of failure, reducing switching delays, preventing rigging operation interruptions, and ensuring performance continuity.

[0016] Software-defined networking technology gives the dispatch center flexible signal processing capabilities. Its direct communication with signal sources and boom equipment reduces intermediate links, lowers signal loss and delay, and improves system response speed. Redundant design modules are integrated into the dispatch center and transmission path, covering core nodes, providing dual protection for the system's fault resistance.

[0017] The signal receiving equipment stably processes multiple signals, the SDN controller group realizes the coordinated scheduling of the entire signal process, the signal distribution equipment accurately adapts to multiple rigging poles, and the redundant design equipment provides guarantees from the dimensions of path, equipment, and network, which in turn supports the stable and precise control of the rigging poles and ensures the smooth performance. Attached Figure Description

[0018] Figure 1 This is a flowchart of the method of the present invention.

[0019] Figure 2 This is a structural diagram of the device of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Digital signal dispatching equipment; 11. SDN controller group; 12. Signal receiving equipment; 13. Signal distribution equipment; 2. Stage rigging mechanism; 3. Redundancy design equipment; 31. Backup path equipment; 32. Backup equipment mechanism; 33. Core network duplex backup mechanism. Detailed Implementation

[0021] This application provides a technical solution; please refer to [link / reference]. Figure 1 The routing and switching control method for stage rigging equipment includes: S1. Configuration and backup of the scheduling center: A digital signal dispatch center is constructed, which adopts software-defined networking technology. Through software-defined networking technology, the signal transmission path can be flexibly programmed and dynamically adjusted without relying on the physical reconstruction of hardware devices. This greatly improves the dispatch center's ability to adapt to multiple devices and multiple instructions in complex performance scenarios. At the same time, it is easy to upgrade or expand the dispatch function according to the performance needs in the future, reducing the cost of hardware replacement. S2. Receiving boom control commands: The digital signal dispatch center receives hoop control commands from at least one signal source. These signal sources include real-time control commands from the central control console and pre-configured control commands stored in the pre-set performance script. The real-time control commands meet the needs of manual adjustments to hoop movements during the performance, such as in response to sudden changes in stage effects. The pre-configured control commands store hoop movement commands corresponding to fixed performance flows in advance, avoiding repeated input of commands during the performance and improving control efficiency. The combination of these two signal sources ensures the diversity and flexibility of command sources, adapting to the control needs of different performance scenarios. S3. Routing Decision and Target Device Determination: The digital signal dispatch center makes routing decisions for boom control commands based on preset routing rules or real-time operation commands input by users, determining the target boom equipment to be controlled. Preset routing rules ensure the standardization and accuracy of command allocation in regular performance scenarios, reducing human error. Real-time operation commands input by users provide flexible adjustment space for special performance needs or emergencies. Through precise routing decisions, it can avoid mis-sending or missing commands, ensuring that every control command accurately points to the corresponding target boom equipment, improving the accuracy of equipment control. S4, Instruction Allocation and Backup Path Preloading: The digital signal dispatch center, based on routing decisions, dynamically distributes boom control commands to target boom devices via the primary path, while preloading boom control commands into the backup path. The primary path serves as the regular command transmission channel, ensuring rapid transmission and execution of commands. The preloaded commands on the backup path can be used directly without reloading commands when the primary path fails, shortening fault switching time and preventing boom devices from pausing operation due to command loading delays, thus ensuring the continuity of the performance. S5. Primary path monitoring and failover: The system monitors the operating status of the primary path in real time. If the primary path is normal, it drives the target boom equipment to operate according to boom control commands. If a fault is detected in the primary path, it immediately and seamlessly switches to the backup path to maintain the continuity of control over the target boom equipment. Real-time monitoring can promptly detect faults such as signal interruption, transmission delay, and data errors in the primary path. Under normal conditions, the primary path ensures efficient execution of commands. Seamless switching in case of faults minimizes the impact of path switching on the operation of the boom equipment, avoiding boom movement jamming, pauses, or malfunctions caused by path faults, ensuring that the stage performance effect is not affected by equipment control problems.

[0022] In S3, during routing decision-making and target device determination, the preset routing rules are executed by the routing strategy management module built into the digital signal dispatching center. The routing strategy management module supports weighted signal matching algorithms and load balancing algorithms. As the core of the preset routing rule execution, the routing strategy management module ensures the stability and efficiency of rule execution through specialized module design. The weighted signal matching algorithm can allocate instructions according to the importance of different signal sources or the priority of different boom devices, while the load balancing algorithm can evenly distribute multiple control instructions to different boom devices, avoiding overload operation of some devices due to excessive instructions, extending the service life of the devices, and ensuring the overall system operating efficiency. The specific process of routing decision-making includes: the routing policy management module collects the working status of each boom device and the command priority of each signal source in real time, dynamically adjusts the routing table based on the working status and command priority, and selects the target boom device that matches the boom control command from multiple boom devices. Real-time collection of device working status can avoid assigning commands to devices that are not working properly, ensuring the reliability of command execution; adjusting the routing table based on command priority ensures that high-priority commands are executed first, and the process of selecting and matching target devices further improves the compatibility between commands and devices, avoiding device misoperation caused by command mismatch.

[0023] In the construction and backup configuration of the S1 dispatch center, the digital signal dispatch center is configured with a dual-machine hot standby mechanism, which includes a main controller and a backup controller. During the operation of the digital signal dispatch center, the main controller and the backup controller maintain real-time synchronization of control data, routing tables, and equipment status information, and monitor each other's operating status through a heartbeat detection signal. Real-time synchronization of control data, routing tables, and equipment status information ensures that the backup controller has completely consistent system data with the main controller when taking over the work, without the need for re-initialization or data loading, laying the foundation for seamless switching. The heartbeat detection signal is like "vital sign monitoring," which can determine in real time whether the main controller is operating normally. Once the main controller malfunctions, it can be detected immediately, avoiding system paralysis due to undetected main controller failure. When the main controller malfunctions, experiences data transmission anomalies, or suffers command execution failures, the backup controller takes over the signal scheduling functions of the digital signal dispatch center within 50ms to prevent signal interruption. This extremely short 50ms takeover time is far shorter than the time intervals perceptible to the human eye and also far shorter than the minimum time unit for boom movements in stage performances. It enables truly seamless switching, completely preventing signal interruptions caused by main controller failures, ensuring the continuous performance of the stage, and preventing the audience from noticing any control anomalies.

[0024] In S4, during instruction allocation and backup path preloading, when switching from the first pre-group to the second pre-group, the digital signal dispatch center first calculates the speed difference, position difference, and execution timing difference of the control signals between the two pre-groups using the signal difference analysis unit. The signal difference analysis unit can accurately identify the key parameter differences between the two pre-group signals, providing data for subsequent signal adjustments and preventing unstable operation of the boom equipment due to excessively large signal differences during direct switching. Speed ​​difference, position difference, and execution timing difference are core parameters affecting the continuity of boom actions; accurate calculation of these parameters is crucial. The system ensures accurate assessment of signal switching risks. If the speed difference is ≤0.1m / s and the position difference is ≤5cm, the control signal of the second pre-arranged group is directly preloaded to the backup path. When the parameter difference is within this range, the changes in the boom movements corresponding to the two sets of signals are gradual, and direct preloading will not impact equipment operation, ensuring both preloading efficiency and equipment stability. If the speed difference is >0.1m / s or the position difference is >5cm, the control signal of the second pre-arranged group is first gradient-adjusted through the signal smoothing processing unit, and then the adjusted signal is preloaded to the backup path. The signal smoothing processing unit can gradually reduce the parameter difference between the two sets of signals through gradient adjustment, enabling a smooth transition between the second and first pre-arranged group signals. This avoids sudden acceleration, deceleration, or positional changes in the boom equipment due to parameter abrupt changes, reducing mechanical wear and preventing abrupt changes in stage effects.

[0025] In S4, during instruction allocation and backup path preloading, after preloading is complete, the main path transitions from the first pre-group signal to the second pre-group signal. The transition time is controlled within 0.5–1 second to ensure that the target hoisting equipment experiences no mechanical impact or significant operational jerking. This 0.5–1 second transition time has been verified through extensive experimentation. It allows for rapid switching between the two signal groups, meeting the time requirements of the performance flow, while also giving the hoisting equipment sufficient time to adapt to signal changes. This avoids mechanical impact due to an excessively short transition time, or disruption to the performance rhythm due to an excessively long transition time. The absence of mechanical impact extends equipment lifespan, while the absence of significant operational jerking ensures smooth stage effects and enhances the audience's viewing experience.

[0026] The stage rigging equipment routing and switching control system adopts the aforementioned stage rigging equipment routing and switching control method, including: a signal source and stage rigging equipment, with the signal source located externally to the stage rigging equipment; a digital signal dispatch center, which employs software-defined networking technology. The digital signal dispatch center establishes communication connections with both the signal source and the stage rigging equipment to receive command signals output by each signal source. Software-defined networking technology provides the digital signal dispatch center with flexible signal processing and distribution capabilities. Direct communication connections with the signal source and stage rigging equipment reduce intermediate transmission links, lower signal loss and delay, and ensure that command signals can be transmitted quickly and accurately between the signal source and the equipment, thereby improving the overall system response speed. A redundancy design module is integrated into the digital signal dispatch center and the signal transmission path between the digital signal dispatch center and the stage rigging equipment. Integrating the redundancy design module into critical links can comprehensively cover the core nodes of system operation, avoiding overall system failure due to the lack of redundancy design in a single link; integration in the dispatch center ensures its own operational reliability, while integration in the transmission path ensures uninterrupted command transmission, providing dual protection to enhance the system's fault tolerance.

[0027] The redundancy design module includes backup paths, backup equipment, and duplex backup of core network equipment. This ensures uninterrupted system operation in the event of a single point of failure. Backup paths provide backup channels for signal transmission, backup equipment can replace the faulty primary equipment, and duplex backup of core network equipment ensures that core network nodes do not fail. The combination of these three elements forms comprehensive redundancy protection. No matter which single point of failure occurs, corresponding backup resources will promptly fill the gap, preventing the fault from spreading and causing system paralysis. The redundancy design module includes a main controller and a backup controller, both of which are communicatively connected to the digital signal dispatch center, forming a dual-machine hot standby mechanism. The dual-machine hot standby mechanism ensures that the main controller and the backup controller are always working together, providing a guarantee for rapid takeover in the event of a main controller failure and ensuring that the core control functions of the dispatch center are not interrupted; a real-time heartbeat detection link is established between the main controller and the backup controller to monitor the operating status of the main controller. The real-time heartbeat detection link provides continuous and rapid feedback on the main controller's operational status. Compared to periodic monitoring, it can detect anomalies in the main controller more promptly, buying time for the backup controller to take over. When the main controller malfunctions, the backup controller can seamlessly take over its functions, ensuring uninterrupted command signal processing and distribution in the digital signal dispatch center. Seamless takeover means that the dispatch center's command processing and distribution will not be interrupted due to controller switching, guaranteeing the continuity of the entire system's control flow and preventing any impact on stage performances.

[0028] The strategy management module and the routing strategy management module communicate with the digital signal dispatch center. The routing strategy management module supports weighted signal matching algorithms and load balancing algorithms. The communication connection with the dispatch center ensures that the routing strategy management module can transmit the adjusted routing rules to the dispatch center in a timely manner, ensuring that the instruction allocation is executed according to the latest rules. The support for weighted signal matching algorithms and load balancing algorithms makes routing decisions more flexible and scientific, and can optimize instruction allocation according to actual performance needs and equipment status. The routing strategy management module stores preset performance script routing configurations. These preset configurations allow for customized routing schemes to be developed in advance for different performance scripts, avoiding confusion and delays caused by setting routing rules on the fly during the performance. The module can obtain the real-time operating status of each stage rigging device and the priority of the output command signals from each signal source. It dynamically adjusts the signal routing table based on the real-time operating status and priority, and sends the adjusted routing table to the digital signal dispatch center to optimize command signal allocation. By obtaining real-time operating status and command priority, the module ensures that the routing table adjustment is more in line with actual operating conditions, avoiding the allocation of commands to unsuitable devices or delaying the execution of high-priority commands. The optimized command allocation improves equipment operating efficiency, reduces resource waste, and ensures the priority execution of critical commands, thereby improving the overall control performance of the system.

[0029] Please see Figure 2 The electronic equipment for routing and switching of stage hoisting equipment adopts the aforementioned routing and switching control method for stage hoisting equipment, including: a digital signal scheduling device 1 and a stage hoisting mechanism 2. The stage hoisting mechanism 2 and the digital signal scheduling device 1 are connected by a signal. The digital signal scheduling device 1 includes an SDN controller group 11, a signal receiving device 12, and a signal distribution device 13. The signal receiving device 12 is communicatively connected to multiple external signal sources. The signal receiving device 12 is specifically responsible for receiving external signals and can process instructions from multiple signal sources simultaneously, avoiding signal reception chaos and improving the stability and efficiency of signal reception. SDN controller group 11 is electrically connected to signal receiving device 12 and signal distribution device 13 respectively. As the core of the scheduling device, SDN controller group 11 realizes full-process control of signal reception, processing, decision-making and distribution through electrical connection with receiving device and distribution device, ensuring collaborative work between devices and improving overall scheduling efficiency. The signal distribution device 13 is connected to multiple external stage rigging mechanisms 2. The signal distribution device 13 can accurately distribute the instructions made by the SDN controller group 11 to the corresponding multiple rigging mechanisms to avoid mis-sending instructions. At the same time, it supports multiple devices to receive instructions at the same time, meeting the needs of multiple rigging mechanisms to work together in complex performance scenarios. The digital signal dispatching equipment 1 is electrically connected to a redundant design device 3. The redundant design device 3 includes a backup path device 31, a backup equipment mechanism 32, and a core network duplex backup mechanism 33. The backup path device 31, the signal distribution device 13, and the external stage rigging mechanism 2 form a backup communication link. The backup communication link formed by the backup path device 31 can be immediately activated when the main communication link fails, ensuring uninterrupted command transmission between the signal distribution device 13 and the rigging mechanism 2. The backup equipment mechanism 32 and the core network duplex backup mechanism 33 provide redundancy protection for the equipment and the network core, respectively. Together, these three components constitute the redundant design device 3, comprehensively improving the system's fault tolerance and operational reliability.

[0030] SDN controller group 11 is electrically connected to a routing policy management module. The routing policy management module has a built-in signal matching algorithm, which includes a weighted matching algorithm and a load balancing algorithm. This algorithm is used to dynamically adjust the routing table based on the real-time working status of the external stage hoisting mechanism 2 and the priority of control commands. The electrical connection between SDN controller group 11 and the routing policy management module ensures that the adjusted routing table can be quickly obtained and executed by SDN controller group 11. Adjusting the routing table based on real-time working status and command priority makes command allocation more targeted and reasonable, improving equipment operating efficiency and the reliability of command execution. The routing strategy management module also includes a preset configuration storage unit, which is used to store the hoop control routing configurations corresponding to multiple performance scripts. It supports quick recall of preset routing configurations according to performance needs. The preset configuration storage unit can store routing schemes for different performance scripts in advance, avoiding time waste and errors caused by temporary routing configuration during the performance. The quick recall function meets the need for quick adjustment of routing configurations when switching performance scenes, improving the flexibility and adaptability of the system. The backup equipment mechanism 32 in the redundant design equipment 3 includes a main controller and a backup controller. The main controller and the backup controller operate synchronously to form a dual-machine hot standby mechanism. The synchronous operation of the main controller and the backup controller ensures that they have completely consistent operating data and status, laying the foundation for the backup controller to quickly and seamlessly take over the work when the main controller fails. The dual-machine hot standby mechanism greatly improves the reliability of the backup equipment mechanism 32. The backup equipment mechanism 32 includes a heartbeat detection module, which is electrically connected to both the main controller and the backup controller to monitor the operating status of the main controller in real time. Through its electrical connection to the main and backup controllers, the heartbeat detection module can continuously acquire the operating information of the main controller in real time, promptly detect faults in the main controller, and prevent system interruptions caused by undetected main controller malfunctions, ensuring that the backup equipment mechanism 32 can function effectively in critical moments.

Claims

1. A method for route selection and switching control of stage rigging equipment, characterized in that, include: S1. Configuration and backup of the scheduling center: A digital signal dispatch center is constructed, which adopts software-defined networking technology. S2. Receiving boom control commands: The digital signal dispatch center receives boom control commands from at least one signal source, including real-time control commands from the central control console and pre-configured control commands stored in the preset performance script. S3. Routing Decision and Target Device Determination: The digital signal dispatch center makes routing decisions for boom control commands based on preset routing rules and real-time operation commands input by users, and determines the target boom equipment to be controlled. S4, Instruction Allocation and Backup Path Preloading: The digital signal dispatch center dynamically distributes boom control commands to target boom devices through the primary path based on routing decisions, while preloading boom control commands to backup paths; S5. Primary path monitoring and failover: The operating status of the primary path is monitored in real time. If the primary path is normal, the target boom device is driven to operate according to the boom control command through the primary path. If a fault is detected in the primary path, the system immediately switches to the backup path to maintain the continuity of control over the target boom device.

2. The routing and switching control method for stage rigging equipment according to claim 1, characterized in that: In S3, routing decision and target device determination, the preset routing rules are executed by the routing policy management module built into the digital signal dispatch center. The routing policy management module supports weighted signal matching algorithms and load balancing algorithms. The specific process of the routing decision includes: the routing policy management module collects the working status of each boom device and the command priority of each signal source in real time, dynamically adjusts the routing table according to the working status and command priority, and selects the target boom device that matches the boom control command from multiple boom devices.

3. The routing and switching control method for stage rigging equipment according to claim 1, characterized in that: In the construction and backup configuration of the S1 dispatch center, the digital signal dispatch center is configured with a dual-machine hot standby mechanism, which includes a main controller and a backup controller. During the operation of the digital signal dispatch center, the main controller and the backup controller maintain real-time synchronization of control data, routing tables and equipment status information, and monitor each other's operating status through heartbeat detection signals. When the main controller crashes, data transmission is abnormal or instruction execution fails, the backup controller takes over the signal dispatching function of the digital signal dispatch center within 50ms.

4. The routing and switching control method for stage rigging equipment according to claim 1, characterized in that: In S4, instruction allocation and backup path preloading, when it is necessary to switch from the first pre-group to the second pre-group, the digital signal dispatch center first calculates the speed difference, position difference and execution timing difference of the control signals of the two pre-groups through the signal difference analysis unit. If the speed difference is ≤0.1m / s and the position difference is ≤5cm, the control signal of the second pre-group is directly preloaded to the backup path; if the speed difference is >0.1m / s or the position difference is >5cm, the control signal of the second pre-group is first gradient adjusted through the signal smoothing processing unit, and then the adjusted signal is preloaded to the backup path.

5. The routing and switching control method for stage rigging equipment according to claim 4, characterized in that: In S4, instruction allocation and backup path preloading, after preloading is completed, the primary path is controlled to transition from the first pre-group signal to the second pre-group signal, with the transition time controlled between 0.5 and 1 second, to ensure that the target boom equipment is free from mechanical impact and obvious operational jerking.

6. A routing and switching control system for stage rigging equipment, employing the routing and switching control method for stage rigging equipment as described in any one of claims 1-5, characterized in that, include: The signal source and stage rigging equipment, with the signal source located outside the stage rigging equipment; A digital signal dispatch center, which employs software-defined networking technology, establishes communication connections with signal sources and stage rigging equipment to receive command signals output by each of the signal sources. A redundancy design module is integrated into the digital signal dispatch center and the signal transmission path between the digital signal dispatch center and the stage rigging equipment.

7. The routing and switching control system for the stage rigging equipment according to claim 6, characterized in that: The redundancy design module includes backup paths, backup equipment, and duplex backup of core network equipment to ensure uninterrupted overall system operation in the event of a single point of failure. The redundancy design module includes a main controller and a backup controller, both of which are communicatively connected to the digital signal dispatch center, forming a dual-machine hot standby mechanism. A real-time heartbeat detection link is established between the main controller and the backup controller to monitor the operating status of the main controller. When the main controller experiences an operational anomaly, the backup controller can seamlessly take over the functions of the main controller, ensuring uninterrupted instruction signal processing and distribution at the digital signal dispatch center.

8. The routing and switching control system for the stage rigging equipment according to claim 6, characterized in that: The strategy management module and the routing strategy management module are communicatively connected to the digital signal dispatching center. The routing strategy management module supports weighted signal matching algorithms and load balancing algorithms, and stores preset performance script routing configurations. The routing strategy management module can obtain the real-time working status of each stage rigging device and the priority of the output command signals of each signal source, and dynamically adjust the signal routing table according to the real-time working status and the priority, and send the adjusted routing table to the digital signal dispatching center to optimize the allocation of command signals.

9. An electronic device for routing and switching of stage rigging equipment, employing the routing and switching control method for stage rigging equipment as described in any one of claims 1-5, comprising: A digital signal scheduling device (1) and a stage hoisting mechanism (2), wherein the stage hoisting mechanism (2) is connected to the digital signal scheduling device (1) via a signal, characterized in that: the digital signal scheduling device (1) includes an SDN controller group (11), a signal receiving device (12) and a signal distribution device (13), wherein the signal receiving device (12) is communicatively connected to multiple external signal sources, the SDN controller group (11) is electrically connected to the signal receiving device (12) and the signal distribution device (13) respectively, and the signal distribution device (13) is communicatively connected to multiple external stage hoisting mechanisms (2); The digital signal scheduling device (1) is electrically connected to a redundant design device (3), which includes a backup path device (31), a backup device mechanism (32), and a core network duplex backup mechanism (33). The backup path device (31), the signal distribution device (13), and the external stage hoist mechanism (2) form a backup communication link.

10. The electronic device for routing and switching of the stage rigging equipment according to claim 9, characterized in that: The SDN controller group (11) is electrically connected to a routing strategy management module. The routing strategy management module has a built-in signal matching algorithm, which includes a weight-based matching algorithm and a load balancing algorithm. It is used to dynamically adjust the routing table according to the real-time working status of the external stage hoisting mechanism (2) and the priority of the control commands. The routing strategy management module includes a preset configuration storage unit, which is used to store hoisting control routing configurations corresponding to multiple performance scripts and supports quick recall of preset routing configurations according to performance requirements. The backup equipment mechanism (32) in the redundant design equipment (3) includes a main controller and a backup controller. The main controller and the backup controller operate synchronously to form a dual-machine hot standby mechanism. The backup equipment mechanism (32) includes a heartbeat detection module. The heartbeat detection module is electrically connected to the main controller and the backup controller respectively and is used to monitor the operating status of the main controller in real time.

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