Monitoring ball signal extension system and method based on multi-mode networking module

Abstract

The invention relates to a monitoring ball signal extension system and method based on a multi-mode networking module, and belongs to the technical field of power transmission and transformation construction safety monitoring. The system comprises a signal detection module, a networking mode selection module, a signal processing module, a signal transmission module, a monitoring system integration module and an external signal enhancement device. The signal detection module monitors signal intensity and interference conditions; the networking mode selection module automatically selects a networking mode in sequence; the signal processing module optimizes the video signal; the transmission module transmits signals; the monitoring system integration module interacts with the monitoring platform; the external signal enhancement device comprises an antenna gainer and a signal repeater. The system can realize automatic networking, adapts to a complex environment, ensures stable transmission of signals, improves imaging quality, enhances monitoring flexibility, optimizes data processing, is suitable for safety monitoring of a power transmission and transformation construction site, and ensures smooth engineering.

Description

Technical Field

[0001] The present invention belongs to the technical field of power transmission and transformation construction safety monitoring, and in particular relates to a ball control signal extension system and method based on a multi-mode networking module. Background Art

[0002] The construction sites of power transmission and transformation are usually located in areas with complex terrain and harsh environments, such as mountainous areas and remote areas, which present many challenges in signal transmission. On the one hand, terrain factors can cause signal obstruction, resulting in signal blind spots and affecting the transmission of surveillance video. On the other hand, severe weather such as rain, snow, fog, etc. can increase signal attenuation and increase interference signals, resulting in blurred surveillance images and even signal interruption in severe cases. Moreover, the traditional surveillance ball has limited signal extension capabilities, making it difficult to meet the needs of stable, high-quality signal transmission and flexible monitoring in complex environments, and cannot effectively guarantee the safety monitoring of power transmission and transformation construction sites.

[0003] Therefore, there is an urgent need for a control ball signal extension method and system that can solve these problems to ensure reliable security monitoring in various complex environments. Summary of the invention

[0004] The purpose of the present invention is to ensure reliable safety monitoring in various complex environments, and to provide a ball control signal extension system and method based on a multi-mode networking module,

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is: a ball signal extension system based on a multi-mode networking module, which integrates signal detection, networking mode selection, signal processing, transmission, and monitoring functions, can realize automatic networking in complex environments, and realize safe monitoring of power transmission and transformation construction sites.

[0006] In one embodiment of the present invention, the system comprises:

[0007] Signal detection module: detect the signal strength and interference situation of the current position of the control ball in real time, obtain parameter information including signal strength value, interference signal type and strength, and transmit the detection results to the networking mode selection module in real time;

[0008] Networking mode selection module: automatically selects the networking mode according to the detection result of the signal detection module;

[0009] Signal processing module: preprocess and optimize video signals;

[0010] Transmission module: transmits the processed video signal to the target location through the networking module;

[0011] Monitoring system integration module; establishes a secure communication connection with the power transmission and transformation construction safety monitoring platform, performs data format conversion and protocol adaptation, parses the remote control instructions of the monitoring platform and transmits them to the control unit of the control ball, and at the same time receives the operation execution results of the control ball and feeds them back to the monitoring platform, and monitors the status of the control ball in real time.

[0012] In one embodiment of the present invention, the control ball node in the automatic selection networking mode automatically organizes and configures the network to realize multi-hop transmission of data and improve signal coverage. The control ball node identifies the surrounding connectable nodes by sending and receiving detection signals, and obtains the location and signal strength information of the connectable nodes; the optimal network topology is automatically calculated according to the location and signal strength information of the connectable nodes, and an adaptive routing path is selected to ensure efficient multi-hop transmission of data. When the network topology changes, the route is automatically recalculated and adjusted, and the Dijkstra algorithm is used to calculate the optimal routing path.

[0013] In one embodiment of the present invention, the specific implementation of using the Dijkstra algorithm to calculate the optimal routing path is as follows:

[0014] Suppose the node set is V, the source node is s, the target node is t, the distance matrix is ​​D, and the predecessor node matrix is ​​P. The algorithm steps are as follows:

[0015] Step 1, initialization: D(s) = 0, for v∈V-{s}, D(v) = ∞, P(v) = NULL;

[0016] Step 2: For unlabeled node u, find the node u with the smallest D(u) min , mark u min ;

[0017] Step 3: For min Adjacent unlabeled node v, update distance:

[0018] D(v)=min(D(v),D(u min )+w(u min ,v))

[0019] Among them, w(u min ,v) is the node u min The link weight to node v is determined based on the signal strength and interference. If D(v is updated, then P(v) = u min ;

[0020] Step 4: Repeat steps 2 and 3 until the target node t is marked. At this time, the optimal routing path from the source node s to the target node t is obtained by backtracking the predecessor node matrix P.

[0021] In one embodiment of the present invention, the networking mode selection module has a built-in intelligent decision-making algorithm, which judges the current signal environment based on preset thresholds and rules. When the signal strength is between the preset first threshold and second threshold and the interference signal strength is lower than the interference threshold, the self-organizing network mode is started and the external signal enhancement device is activated; when the signal strength is lower than the second threshold or the interference signal strength is higher than the interference threshold, the signal relay mode is started, and during the networking process, the strategy can be dynamically adjusted according to the signal changes, while monitoring the networking operation status in real time.

[0022] In one embodiment of the present invention, the external signal enhancement device includes an antenna booster and a signal repeater; wherein,

[0023] The antenna booster automatically adjusts the direction according to the signal direction, and the gain multiple G is manually or automatically adjustable within a set range to receive and transmit signals. The calculation and adjustment of the gain multiple G is based on the following formula:

[0024]

[0025] Among them, P r is the received signal power, P t is the transmitted signal power, d is the transmission distance, λ is the signal wavelength, G t is the transmitting antenna gain, G r is the receiving antenna gain, L is the system loss factor;

[0026] The signal repeater receives weak signals and amplifies and forwards them, supporting multiple repeaters cascaded to extend the transmission distance. The amplification factor A of the signal repeater is determined according to the input signal strength I in and the expected output signal strength I out calculate:

[0027]

[0028] In one embodiment of the present invention, the signal processing module includes a gain control submodule, an equalizer submodule, and a filter submodule; wherein,

[0029] The gain control submodule calculates and adjusts the gain according to the video signal strength information, and outputs the video signal to the equalizer submodule; let the signal strength be S, and the expected signal strength be S 0 , the gain of the gain control submodule G c The calculation is as follows:

[0030]

[0031] The equalizer submodule performs frequency analysis on the video signal, adjusts the frequency components according to a preset curve or an adaptive algorithm, and then transmits the frequency components to the filter submodule;

[0032] If the least mean square adaptive algorithm is used to adjust the equalizer coefficient w(n), where n is the sampling point number, the input signal is x(n), the expected output signal is d(n), and the step size factor is μ, then:

[0033] w(n+1)=w(n)+μe(n)x(n);

[0034] Wherein, the error signal e(n)=d(n)-y(n), y(n)=w T (n)x(n);w T (n) is the transpose of w(n);

[0035] The filter submodule uses an adaptive filtering algorithm to remove noise interference and outputs a processed video signal.

[0036] In one embodiment of the present invention, the operating parameters of the gain control submodule, the equalizer submodule, and the filter submodule are dynamically adjusted according to the real-time feedback of the signal detection module. When the signal environment changes, the gain control submodule, the equalizer submodule, and the filter submodule respond quickly and optimize the processing parameters.

[0037] In one embodiment of the present invention, the monitoring system integration module receives the remote control command sent by the monitoring platform, parses and verifies the command, and then converts the command into a control signal recognizable by the control ball, and transmits it to the control ball control unit; the control ball control unit drives the corresponding motor or actuator according to the received control signal to achieve the focus adjustment, viewing angle switching, and pan / tilt rotation of the camera, and feeds back the operation execution result to the monitoring system integration module, and the monitoring system integration module transmits the result to the monitoring platform. When the camera focus is adjusted, the target focal length is set to f t , the current focal length is f c , the step length of the lens drive motor is Δf, then the number of motor drive steps N is calculated as:

[0038]

[0039] When the pan / tilt rotation angle is controlled, the target angle is set to θ t , the current angle is θ c , the step length of the pan / tilt motor is Δθ, then the number of motor drive steps M is:

[0040]

[0041] The present invention also provides a method for extending a ball control signal based on a multi-mode networking module, comprising:

[0042] Signal detection: Real-time detection of the signal strength and interference situation of the current position of the control ball, and acquisition of parameter information including signal strength value, interference signal type and strength;

[0043] Networking mode selection: automatically select the networking mode according to the signal detection results;

[0044] Signal processing; preprocessing and optimization of video signals;

[0045] Transmitting; transmitting the processed video signal to a target location;

[0046] Monitoring: Establish a secure communication connection with the power transmission and transformation construction safety monitoring platform, perform data format conversion and protocol adaptation, parse the remote control instructions of the monitoring platform and transmit them to the control unit of the control ball, and at the same time receive the results of the control ball operation and feedback them to the monitoring platform to monitor the status of the control ball in real time;

[0047] The method adopts the system as described above to extend the control ball signal.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] 1. Multi-mode networking to ensure signal coverage:

[0050] The present invention adopts a self-organizing network mode, so that the control ball nodes can automatically organize and configure the network to achieve multi-hop transmission of data; in complex power transmission and transformation construction sites, such as mountainous areas, remote areas and other areas where signals are difficult to cover, even if the signals of some nodes are weak, they can cooperate with other nodes to build a stable network topology structure, transmit video data to areas with better signals, and finally achieve communication with the monitoring center; this multi-hop transmission method greatly expands the coverage of the signal and effectively solves the problem of signal blind spots caused by factors such as terrain and distance;

[0051] The external signal enhancement device further enhances the signal strength; the antenna booster can automatically adjust the direction according to the signal direction to maximize the reception and transmission of signals, and its gain multiple can also be adjusted manually or automatically to adapt to different signal environments; the signal repeater can receive weak signals and amplify and forward them, and supports multiple repeaters cascaded to gradually extend the signal transmission distance, ensuring that the signal can be stably transmitted from the construction site to the monitoring center, and reliable data transmission can be achieved even in areas with extremely weak signals;

[0052] 2. Intelligent decision-making to optimize networking strategies:

[0053] The intelligent decision-making algorithm built into the networking mode selection module automatically selects the most appropriate networking mode based on the real-time detection results of the signal detection module. It can respond quickly and dynamically adjust the networking strategy when the signal strength and interference situation change. For example, when the signal at the construction site is disturbed by weather changes or the movement of construction equipment, the algorithm can promptly judge and switch to a more stable networking mode to ensure the continuity and stability of signal transmission and avoid monitoring loss due to signal interruption.

[0054] 3. Advanced signal processing technology:

[0055] The gain control, equalizer and filter in the signal processing module work together to fully optimize the video signal; the gain control dynamically adjusts the gain multiple according to the signal strength to ensure that the signal strength is stable in an appropriate range and avoid image distortion caused by too weak or too strong signals; the equalizer improves the frequency response of the signal, improves the spectrum quality of the image, and enhances the clarity and layering of the image; the filter uses an adaptive filtering algorithm to effectively remove various types of noise interference such as Gaussian noise and impulse noise, while maintaining the detailed information of the signal, making the monitoring picture clearer and cleaner, which helps monitoring personnel accurately identify the personnel, equipment and environmental conditions at the construction site;

[0056] 4. Dealing with harsh imaging environments:

[0057] In the construction sites of power transmission and transformation projects, severe weather such as rain, fog, dust and changes in different lighting conditions are often encountered, which can lead to problems such as blurred video imaging and reduced contrast. The present invention, through the above-mentioned signal processing technology, can overcome the impact of severe imaging environment on video quality to a certain extent, improve the visibility, contrast and color accuracy of the image, ensure that high-quality monitoring video can be obtained under all-weather conditions, and provide a reliable visual basis for security monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 The present invention is a schematic diagram of the overall structure of a ball control signal extension system based on a multi-mode networking module. DETAILED DESCRIPTION

[0059] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings.

[0060] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0061] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0062] The present invention provides a signal extension system based on a multi-mode networking module, which integrates signal detection, networking mode selection, signal processing, transmission, and monitoring functions, and can realize automatic networking in complex environments and realize safe monitoring of power transmission and transformation construction sites. The system includes:

[0063] Signal detection module: detect the signal strength and interference situation of the current position of the control ball in real time, obtain parameter information including signal strength value, interference signal type and strength, and transmit the detection results to the networking mode selection module in real time;

[0064] Networking mode selection module: automatically selects the networking mode according to the detection result of the signal detection module;

[0065] Signal processing module: preprocess and optimize video signals;

[0066] Transmission module: transmits the processed video signal to the target location through the networking module;

[0067] Monitoring system integration module; establishes a secure communication connection with the power transmission and transformation construction safety monitoring platform, performs data format conversion and protocol adaptation, parses the remote control instructions of the monitoring platform and transmits them to the control unit of the control ball, and at the same time receives the operation execution results of the control ball and feeds them back to the monitoring platform, and monitors the status of the control ball in real time.

[0068] The present invention also provides a method for extending a ball control signal based on a multi-mode networking module, comprising:

[0069] Signal detection: Real-time detection of the signal strength and interference situation of the current position of the control ball, and acquisition of parameter information including signal strength value, interference signal type and strength;

[0070] Networking mode selection: automatically select the networking mode according to the signal detection results;

[0071] Signal processing; preprocessing and optimization of video signals;

[0072] Transmitting; transmitting the processed video signal to a target location;

[0073] Monitoring: Establish a secure communication connection with the power transmission and transformation construction safety monitoring platform, perform data format conversion and protocol adaptation, parse the remote control instructions of the monitoring platform and transmit them to the control unit of the control ball, and at the same time receive the results of the control ball operation and feedback them to the monitoring platform to monitor the status of the control ball in real time;

[0074] The method adopts the system as described above to extend the control ball signal.

[0075] The following is the specific implementation process of the present invention.

[0076] like Figure 1 As shown, an embodiment of the present invention provides a ball control signal extension system based on a multi-mode networking module, including a signal detection module, a networking mode selection module, a signal processing module, a transmission module and a monitoring system integration module.

[0077] The signal detection module detects the signal strength and interference situation of the current position of the control ball in real time, obtains parameter information including signal strength value, interference signal type and strength, and transmits the detection result to the networking mode selection module in real time;

[0078] The networking mode selection module automatically selects the networking mode according to the detection result of the signal detection module. The networking mode selection module has a built-in intelligent decision-making algorithm. It judges the current signal environment according to the preset thresholds and rules. When the signal strength is between the preset first threshold and the second threshold and the interference signal strength is lower than the interference threshold, the self-networking mode is started and the external signal enhancement device is activated; when the signal strength is lower than the second threshold or the interference signal strength is higher than the interference threshold, the signal relay mode is started, and the strategy can be dynamically adjusted according to the signal changes during the networking process, and the networking operation status is monitored in real time;

[0079] The signal processing module uses the gain control submodule, the equalizer submodule, and the filter submodule to preprocess and optimize the video signal. The gain control submodule calculates and adjusts the gain according to the signal strength information and outputs the signal to the equalizer submodule; the equalizer submodule performs frequency analysis on the signal, adjusts the frequency component according to the preset curve or adaptive algorithm, and then transmits it to the filter submodule; the filter submodule uses an adaptive filtering algorithm to remove noise interference and outputs the processed video signal;

[0080] The transmission module transmits the processed video signal to the target location through the networking module;

[0081] Monitoring system integration module: The monitoring system integration module establishes a secure communication connection with the power transmission and transformation construction safety monitoring platform, performs data format conversion and protocol adaptation, parses the remote control instructions of the monitoring platform and transmits them to the control unit of the control ball, and at the same time receives the operation execution results of the control ball and feeds them back to the monitoring platform to monitor the status of the control ball in real time.

[0082] In this embodiment, the external signal enhancement device includes an antenna booster and a signal repeater. The antenna booster automatically adjusts the direction according to the signal direction. The gain multiple G is manually or automatically adjustable within a set range. The gain multiple G is calculated and adjusted based on the following formula to receive and transmit signals:

[0083]

[0084] Among them, P r is the received signal power, P t is the transmitted signal power, d is the transmission distance, λ is the signal wavelength, G t is the transmitting antenna gain, G r is the receiving antenna gain, L is the system loss factor;

[0085] The signal repeater receives weak signals and amplifies and forwards them, supporting multiple repeaters cascaded to extend the transmission distance. The amplification factor A of the signal repeater can be adjusted according to the input signal strength I in and the expected output signal strength I out calculate:

[0086]

[0087] In this embodiment, the control ball node in the self-organizing network mode automatically organizes and configures the network to realize multi-hop transmission of data and improve the signal coverage. The control ball node identifies the surrounding connectable nodes by sending and receiving detection signals, and obtains the location and signal strength information of the connectable nodes; the optimal network topology is automatically calculated according to the location and signal strength information of the connectable nodes, and the adaptive routing path is selected to ensure efficient multi-hop transmission of data. When the network topology changes, the route is automatically recalculated and adjusted. When calculating the optimal routing path, the Dijkstra algorithm is used. Let the node set be V, the source node be s, the target node be t, the distance matrix be D, and the predecessor node matrix be P. The algorithm steps are as follows:

[0088] Step 1, initialization: D(s) = 0, for v∈V-{s}, D(v) = ∞, P(v) = NULL;

[0089] Step 2: For unlabeled node u, find the node u with the smallest D(u) min , mark u min ;

[0090] Step 3: For min Adjacent unlabeled node v, update distance:

[0091] D(v)=min(D(v),D(u min )+w(u min ,v))

[0092] Among them, w(u min ,v) is the node u min The link weight to node v is determined based on the signal strength and interference. If D(v is updated, then P(v) = u min ;

[0093] Step 4: Repeat steps 2 and 3 until the target node t is marked. At this time, the optimal routing path from the source node s to the target node t can be obtained by backtracking the predecessor node matrix P.

[0094] In this embodiment, in the signal processing module, the gain control submodule calculates and adjusts the signal gain according to the signal strength information provided by the signal detection module, and outputs the adjusted signal to the equalizer submodule. Assume that the signal strength is S and the expected signal strength is S. 0 , the gain of the gain control submodule G c The calculation is as follows:

[0095]

[0096] The equalizer submodule performs frequency analysis on the input signal, adjusts the frequency component of the signal according to the preset frequency response curve or adaptive algorithm, and then transmits the equalized signal to the filter submodule. If the least mean square adaptive algorithm is used to adjust the equalizer coefficient w(n), where n is the sampling point number, the input signal is x(n), the expected output signal is d(n), and the step factor is μ, then:

[0097] w(n+1)=w(n)+μe(n)x(n);

[0098] Wherein, the error signal e(n)=d(n)-y(n), y(n)=w T (n)x(n);w T (n0 is the transpose of w(n);

[0099] The filter submodule uses an adaptive filtering algorithm to remove noise interference and finally outputs a processed high-quality video signal; the working parameters of the gain control submodule, the equalizer submodule, and the filter submodule are dynamically adjusted according to the real-time feedback of the signal detection module. When the signal environment changes, the gain control submodule, the equalizer submodule, and the filter submodule respond quickly to optimize the processing parameters.

[0100] As a preferred solution, the monitoring system integration module receives the remote control command sent by the monitoring platform, parses and verifies the command, and then converts the command into a control signal recognizable by the control ball, and transmits it to the control unit of the control ball; the control unit of the control ball drives the corresponding motor or actuator according to the received control signal to achieve the focus adjustment, viewing angle switching, and pan / tilt rotation of the camera, and feeds back the operation execution result to the monitoring system integration module, which then transmits the result to the monitoring platform. When adjusting the focus of the camera, the target focal length is set to f t , the current focal length is f c , the step length of the lens drive motor is Δf, then the number of motor drive steps N can be calculated as:

[0101]

[0102] When the pan / tilt rotation angle is controlled, the target angle is set to θ t , the current angle is θ c , the step length of the pan / tilt motor is Δθ, then the number of motor driving steps M is:

[0103]

[0104] In this embodiment, a method for extending a ball control signal based on a multi-mode networking module adopts a ball control signal extension system based on a multi-mode networking module to extend the ball control signal, specifically comprising the following steps:

[0105] Step S1: Signal detection

[0106] Utilize the signal detection module in the ball control system, which has a built-in high-precision sensor;

[0107] The sensor monitors the signal environment of the current position of the control ball in real time and collects surrounding signals;

[0108] The collected signals are analyzed and processed through internal circuits and algorithms, and converted into digital signals;

[0109] Accurately obtain signal strength value, interference signal type and strength and other parameter information;

[0110] After preliminary processing, the detection results are transmitted to the networking mode selection module in real time;

[0111] Step S2: Networking mode selection

[0112] The networking mode selection module receives parameters transmitted by the signal detection module;

[0113] The judgment is made according to the built-in intelligent decision-making algorithm, which pre-sets parameters such as the first threshold, the second threshold (the first threshold is greater than the second threshold) and the interference threshold;

[0114] Step S2-1: when the detected signal strength is between the first threshold and the second threshold and the interference signal strength is lower than the interference threshold;

[0115] Start the ad hoc network mode;

[0116] At the same time, components such as antenna boosters in external signal enhancement equipment are activated;

[0117] Step S2-2: If the signal strength is lower than the second threshold or the interference signal strength is higher than the interference threshold;

[0118] Start signal relay mode;

[0119] Select appropriate signal repeaters for deployment and setting of working parameters;

[0120] During the networking process, the networking strategy is dynamically adjusted based on the real-time feedback from the signal detection module to ensure the stability and reliability of signal transmission;

[0121] Step S3: Signal processing

[0122] After receiving the video signal, the signal processing module starts the gain control submodule;

[0123] Step S3-1: Calculate and adjust the signal gain according to the signal strength information provided by the signal detection module;

[0124] Step S3-2: outputting the adjusted signal to the equalizer submodule;

[0125] The equalizer submodule performs frequency analysis on the input signal;

[0126] Step S3-2-1: Use a preset frequency response curve or adaptive algorithm to adjust the gain or attenuation of different frequency components of the signal to improve the spectrum quality of the signal;

[0127] Step S3-2-2: transmitting the equalized signal to the filter submodule;

[0128] The filter submodule uses an adaptive filtering algorithm;

[0129] Step S3-3-1: Automatically adjust the filter parameters according to the noise type and intensity to effectively remove various interferences such as Gaussian noise and impulse noise;

[0130] Step S3-3-2: maintaining signal detail information while removing noise;

[0131] Finally, the processed high-quality video signal is output. During the entire signal processing process, the working parameters of each submodule are dynamically optimized according to the real-time feedback of the signal detection module to adapt to the changes in the signal environment.

[0132] Step S4: Signal transmission

[0133] The transmission module performs protocol encapsulation on the video signal optimized by the signal processing module;

[0134] According to the current network environment and signal quality, select the most appropriate protocol for transmission from the multiple supported wireless communication protocols;

[0135] With adaptive transmission rate adjustment function;

[0136] Step S4-1: real-time monitoring of signal quality and network congestion;

[0137] Step S4-2: Dynamically adjust the transmission rate to ensure high efficiency and stability of data transmission;

[0138] When data errors or loss occur during transmission;

[0139] Step S4-3: retransmitting using the data in the data cache to ensure that the video signal can be completely and accurately transmitted to the target location;

[0140] Step S5: Integration with monitoring system

[0141] The monitoring system integration module first establishes a secure communication connection based on encryption technology with the power transmission and transformation construction security monitoring platform;

[0142] Step S5-1: ensuring confidentiality, integrity and reliability of data transmission;

[0143] Perform data format conversion and protocol adaptation on the video data transmitted by the surveillance ball;

[0144] Step S5-2: enable it to be correctly decoded, displayed and stored on the monitoring platform. At the same time, the monitoring platform has video playback control functions, such as pause, fast forward, playback, etc., to facilitate monitoring personnel to conduct a comprehensive observation of the construction site;

[0145] The monitoring system integration module receives the remote control instructions sent by the monitoring platform in real time;

[0146] Step S5-3: parse and verify the command, and after confirming that the command is legal and valid, convert it into a control signal that can be recognized by the control ball and transmit it to the control unit of the control ball;

[0147] The control unit of the control ball drives the corresponding motor or actuator according to the received control signal;

[0148] Step S5-4: Implement operations such as camera focus adjustment, viewing angle switching, and pan / tilt rotation;

[0149] After the operation is completed, the execution result is fed back to the monitoring system integration module;

[0150] Step S5-5: The monitoring system integration module transmits the result to the monitoring platform so that the monitoring personnel can confirm whether the operation is successful;

[0151] During the whole process, the monitoring system integration module continuously monitors the status of the control ball in real time to ensure the safety and stability of remote control operations;

[0152] Step S6: Node operation in self-organizing network mode (performed when the networking mode is self-organizing network)

[0153] The control ball node periodically sends specific detection signals and receives response signals from surrounding nodes;

[0154] Identify adjacent connectable nodes through signal interaction;

[0155] Step S6-1: During the identification process, obtain the location information and signal strength information of the connectable node;

[0156] Step S6-2: After summarizing this information, use the routing algorithm to automatically calculate the optimal network topology;

[0157] Step S6-3: Select an appropriate routing path to ensure that data can be transmitted over multiple hops with the shortest path or the best transmission quality;

[0158] During network operation, continuously monitor changes in network topology;

[0159] Step S6-4: When a node joins or leaves the network, the network topology information is updated in a timely manner;

[0160] Step S6-5: recalculate and adjust the route to ensure network connectivity and data transmission continuity;

[0161] Step S7: External signal enhancement device operation (perform corresponding operations according to the networking mode selection result)

[0162] Antenna booster operation (in ad hoc mode or other situations where enhanced signal reception and transmission are required):

[0163] Step S7-1: The signal direction detection circuit built into the antenna booster monitors the signal direction in real time;

[0164] Step S7-2: According to the detection result, the motor is driven to adjust the direction of the antenna so that it is aimed at the signal source to receive and transmit signals to the greatest extent;

[0165] Step S7-3: The gain multiple of the antenna booster is manually or automatically adjustable within a set range. According to the signal strength and quality feedback, the gain multiple is adjusted manually or automatically to optimize the signal strength and adapt to different signal environments;

[0166] Signal Repeater Operation (in Signal Repeater Mode):

[0167] Step S7-4: The signal repeater is deployed at a suitable location to receive a weak signal from the previous node or device;

[0168] Step S7-5: amplifying the signal through an internal amplifier circuit;

[0169] Step S7-6: Filter the amplified signal using a filter to remove noise and interference;

[0170] Step S7-7: forwarding the processed signal to the next repeater or target location according to the preset relay strategy, supporting multiple repeaters in cascade to gradually extend the signal transmission distance;

[0171] Method advantages:

[0172] Strong adaptability: It can automatically select the appropriate networking mode and signal processing method according to different signal environments, adapt to the complex and changeable power transmission and transformation construction site environment, and can work effectively in mountainous areas, remote areas or under severe weather conditions;

[0173] Signal quality assurance: Optimize the entire process from signal detection to processing and transmission to ensure the quality of video signals during transmission, reduce signal attenuation, interference and distortion, and provide clear and accurate images and video data for monitoring;

[0174] Improved monitoring flexibility: Tight integration with the monitoring system enables remote control functions. Monitoring personnel can flexibly adjust the parameters and viewing angles of the control ball, improve the monitoring capabilities of the construction site, and promptly discover and deal with safety hazards;

[0175] Efficient and reliable transmission: Adaptive transmission rate adjustment and data retransmission mechanism ensure the efficiency and reliability of data transmission, reduce data loss and transmission delay, and ensure the real-time nature of surveillance video.

[0176] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ball control signal extension system based on a multi-mode networking module, characterized in that: It integrates signal detection, networking mode selection, signal processing, transmission and monitoring functions, and can realize automatic networking in complex environments and achieve safe monitoring of power transmission and transformation construction sites.

2. According to claim 1, a ball control signal extension system based on multi-mode networking module is characterized in that: The system comprises: Signal detection module: detect the signal strength and interference situation of the current position of the control ball in real time, obtain parameter information including signal strength value, interference signal type and strength, and transmit the detection results to the networking mode selection module in real time; Networking mode selection module: automatically selects the networking mode according to the detection result of the signal detection module; Signal processing module: preprocess and optimize video signals; Transmission module: transmits the processed video signal to the target location through the networking module; Monitoring system integration module; establishes a secure communication connection with the power transmission and transformation construction safety monitoring platform, performs data format conversion and protocol adaptation, parses the remote control instructions of the monitoring platform and transmits them to the control unit of the control ball, and at the same time receives the operation execution results of the control ball and feeds them back to the monitoring platform, and monitors the status of the control ball in real time.

3. According to claim 2, a ball control signal extension system based on multi-mode networking module is characterized in that: In the automatic selection networking mode, the control ball node automatically organizes and configures the network to realize multi-hop transmission of data and improve signal coverage. The control ball node identifies the surrounding connectable nodes by sending and receiving detection signals, and obtains the location and signal strength information of the connectable nodes; the optimal network topology structure is automatically calculated according to the location and signal strength information of the connectable nodes, and the adaptive routing path is selected to ensure efficient multi-hop transmission of data. When the network topology changes, the route is automatically recalculated and adjusted, and the Dijkstra algorithm is used to calculate the optimal routing path.

4. According to claim 3, a ball control signal extension system based on multi-mode networking module is characterized in that: The specific implementation of using Dijkstra algorithm to calculate the optimal routing path is as follows: Suppose the node set is V, the source node is s, the target node is t, the distance matrix is ​​D, and the predecessor node matrix is ​​P. The algorithm steps are as follows: Step 1, initialization: D(s) = 0, for v∈V-{s}, D(v) = ∞, P(v) = NULL; Step 2: For unlabeled node u, find the node u with the smallest D(u) min , mark u min ; Step 3: For min Adjacent unlabeled node v, update distance: D(v)=min(D(v),D(u min )+w(u min ,v)) Among them, w(u min ,v) is the node u min The link weight to node v is determined based on the signal strength and interference. If D(v is updated, then P(v) = u min ; Step 4: Repeat steps 2 and 3 until the target node t is marked. At this time, the optimal routing path from the source node s to the target node t is obtained by backtracking the predecessor node matrix P.

5. According to claim 2, a ball control signal extension system based on multi-mode networking module is characterized in that: The networking mode selection module has a built-in intelligent decision-making algorithm, which judges the current signal environment according to preset thresholds and rules. When the signal strength is between the preset first threshold and second threshold and the interference signal strength is lower than the interference threshold, the self-organizing networking mode is started and the external signal enhancement device is activated; when the signal strength is lower than the second threshold or the interference signal strength is higher than the interference threshold, the signal relay mode is started, and the strategy can be dynamically adjusted according to the signal changes during the networking process, while monitoring the networking operation status in real time.

6. According to claim 3, a ball control signal extension system based on multi-mode networking module is characterized in that: The external signal enhancement equipment includes an antenna booster and a signal repeater; wherein, The antenna booster automatically adjusts the direction according to the signal direction, and the gain multiple G is manually or automatically adjustable within a set range to receive and transmit signals. The calculation and adjustment of the gain multiple G is based on the following formula: Among them, P r is the received signal power, P t is the transmitted signal power, d is the transmission distance, λ is the signal wavelength, G t is the transmitting antenna gain, G r is the receiving antenna gain, L is the system loss factor; The signal repeater receives weak signals and amplifies and forwards them, supporting multiple repeaters cascaded to extend the transmission distance. The amplification factor A of the signal repeater is determined according to the input signal strength I in and the expected output signal strength I out calculate:

7. The ball control signal extension system based on multi-mode networking module according to claim 2 is characterized in that: The signal processing module includes a gain control submodule, an equalizer submodule, and a filter submodule; wherein, The gain control submodule calculates and adjusts the gain according to the video signal strength information, and outputs the video signal to the equalizer submodule; assuming that the signal strength is S, the expected signal strength is S0, and the gain of the gain control submodule is G c The calculation is as follows: The equalizer submodule performs frequency analysis on the video signal, adjusts the frequency components according to a preset curve or an adaptive algorithm, and then transmits the frequency components to the filter submodule; If the least mean square adaptive algorithm is used to adjust the equalizer coefficient w(n), where n is the sampling point number, the input signal is x(n), the expected output signal is d(n), and the step size factor is μ, then: w(n+1)=w(n)+μe(n)x(n); Wherein, the error signal e(n)=d(n)-y(n), y(n)=w T (n)x(n);w T (n) is the transpose of w(n); The filter submodule uses an adaptive filtering algorithm to remove noise interference and outputs a processed video signal.

8. The ball control signal extension system based on multi-mode networking module according to claim 7 is characterized in that: The working parameters of the gain control submodule, the equalizer submodule, and the filter submodule are dynamically adjusted according to the real-time feedback of the signal detection module. When the signal environment changes, the gain control submodule, the equalizer submodule, and the filter submodule respond quickly and optimize the processing parameters.

9. The ball control signal extension system based on multi-mode networking module according to claim 2 is characterized in that: The monitoring system integration module receives the remote control command sent by the monitoring platform, parses and verifies the command, and then converts the command into a control signal recognizable by the control ball, and transmits it to the control ball control unit; the control ball control unit drives the corresponding motor or actuator according to the received control signal to achieve the focus adjustment, viewing angle switching, and pan / tilt rotation of the camera, and feeds back the operation execution result to the monitoring system integration module, which then transmits the result to the monitoring platform. When adjusting the focus of the camera, the target focal length is set to f t , the current focal length is f c , the step length of the lens drive motor is Δf, then the number of motor drive steps N is calculated as: When the pan / tilt rotation angle is controlled, the target angle is set to θ t , the current angle is θ c , the step length of the pan / tilt motor is Δθ, then the number of motor drive steps M is:

10. A method for extending ball control signals based on multi-mode networking modules, characterized in that: include: Signal detection; Real-time detection of the signal strength and interference situation of the current position of the control ball, and acquisition of parameter information including signal strength value, interference signal type and strength; Networking mode selection: automatically select the networking mode according to the signal detection results; Signal processing; Preprocess and optimize video signals; Transmitting; transmitting the processed video signal to a target location; Monitoring: Establish a secure communication connection with the power transmission and transformation construction safety monitoring platform, perform data format conversion and protocol adaptation, parse the remote control instructions of the monitoring platform and transmit them to the control unit of the control ball, and at the same time receive the results of the control ball operation and feedback them to the monitoring platform to monitor the status of the control ball in real time; The method adopts any system described in claims 1-9 to extend the control ball signal.

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