822 results about "Weak current" patented technology

The invention relates to the technical field of power operation and maintenance, in particular to a power system operation and maintenance method and system of an intelligent power distribution cabinet for weak current control. The method comprises the following steps: acquiring power operation data and sensing data of a power distribution cabinet, and analyzing a topological structure of a power system to obtain a dynamic topological structure of the power system; performing potential load anomaly analysis on the sensing data of the power distribution cabinet to obtain load anomaly node data of the power system; performing load anomaly influence structure division based on the load anomaly node data of the power system to obtain load anomaly influence nodes; performing abnormal node classification on the load abnormal influence nodes according to the sensing data of the power distribution cabinet to obtain three-phase power load offset nodes and three-phase power improper wiring nodes; and performing power distribution reconstruction on the three-phase power load offset node and the three-phase power improper wiring node to obtain abnormal node power distribution data. According to the invention, the weak current control efficiency and the power distribution energy efficiency can be improved.

The invention relates to a weak current equipment abnormity judgment method and system based on the Internet of Things. The method comprises the steps that multi-dimensional parameters such as temperature, current, voltage and vibration frequency are collected through nodes of the Internet of Things, and a dynamic tracking identifier is generated; performing dynamic parameter association analysis on edge nodes, and establishing a real-time coupling degree relationship between parameters; according to the analysis result, evaluating the abnormity level in a grading manner, and distinguishing the primary abnormity of single parameter deviation and the advanced abnormity of multi-parameter collaborative deviation; the cloud platform starts a differential verification mechanism for different levels of anomalies, primary anomalies are transversely compared, and advanced anomalies execute full-life-cycle backtracking verification; the system comprises a data acquisition module, an edge calculation module, an analysis and evaluation module and a cloud analysis platform, and can realize the method. According to the invention, through dynamic coupling degree analysis and a hierarchical verification mechanism, the abnormality judgment accuracy is remarkably improved, and false alarms caused by environmental interference are effectively reduced.

The invention relates to the technical field of weak current intelligent terminal control, in particular to a hierarchical response management control system for a weak current intelligent terminal. The system comprises a state sensing module, a prediction optimization module, a task scheduling module, a fusing control module and an execution feedback module. The state sensing module collects a power supply state, task information and environmental parameters, and constructs a multi-dimensional operation scene model; the prediction optimization module adopts an exponential weighted moving average algorithm to predict a task peak value, and judges a key event probability through an index mutation rule; the task scheduling module generates a hierarchical response sequence and a power supply strategy based on a reinforcement learning algorithm; the fusing control module executes task delay, edge autonomy and key task guarantee mechanisms when resources are abnormal or communication is interrupted; and the execution feedback module collects an operation result and updates the model to realize scheduling closed-loop optimization. According to the invention, the response efficiency and operation toughness of the weak current system in a complex scene are improved.

The invention relates to a weak current cable fault positioning method and system, and the method comprises the steps: preliminarily locking a fault region through monitoring the axial stress change in real time, injecting a low-frequency pulse signal in a target section, analyzing the reflection waveform characteristics, and extracting the waveform distortion characteristics in a reflection signal; dynamically adjusting the output impedance based on the amplitude attenuation and time delay relationship, and if the dynamically adjusted output impedance cannot enable the output impedance of the injected low-frequency pulse signal to be synchronous with the impedance change trend of the cable, marking as an impedance mismatch point; after an impedance mismatch point is identified, other interferences are eliminated through multi-band signal attenuation difference analysis, and the position of a fault point is determined; the system is used for implementing the method. According to the method and system, stress monitoring and electric signal detection are combined, the detection range is remarkably shortened, the positioning precision and the detection accuracy are improved, and the method and system are suitable for weak current cable fault diagnosis in a complex environment.

The invention discloses an intelligent control system and method for weak current equipment based on the Internet of Things, and relates to the technical field of weak current equipment control. Intelligent selection and switching of a main path are realized through topology modeling, path scoring, health feature analysis and supervised learning training and construction of a path health scoring function; the system can continuously monitor node states, identify abnormal nodes and carry out dynamic path replacement, and control continuity is guaranteed; and if path switching fails, fault root causes are automatically traced, high-risk nodes are isolated, and an operation and maintenance platform is linked to intervene in processing, so that the adaptivity, the self-healing capability and the engineering operation and maintenance efficiency of the weak current control system are remarkably improved.

The invention relates to a weak current acquisition device, belongs to the technical field of weak signal detection, and solves the problems that in the prior art, signal processing frequency is insufficient, a circuit structure is complex and difficult to design and debug, and high sampling rate and sensitivity cannot be considered at the same time. The weak current acquisition device comprises an acquisition module, a primary amplification module, a secondary amplification module and a feedback network, wherein the acquisition module is used for acquiring a weak current signal and sending the weak current signal to the primary amplification module; the primary amplification module is used for primarily amplifying the collected current signal and then sending the current signal to the secondary amplification module; the secondary amplification module further amplifies the current signal and then sends the current signal to the signal processing terminal; the two ends of the feedback network are connected with the input end and the output end of the second-stage amplification module respectively, and the feedback network is used for adjusting the gain of the second-stage amplification module.

The invention relates to an economical direct-current circuit breaker with zero-region rapid recovery capability and a control method. The circuit breaker solid state topology comprises a main through-flow branch, a resonance commutation loop, a damping energy consumption loop, a capacitor reset loop, a weak current breaking loop, a pre-charging branch and an MOV energy release module. When it is judged that the system has a short-circuit fault, fault current is introduced into a resonance commutation loop and a damping energy consumption loop, the short-circuit fault is rapidly removed, and safe opening time is provided for a vacuum switch of a main through-flow branch; if special conditions such as manual system maintenance are judged, a weak current on-off loop is put into use; a capacitor of a resonant circuit does not need to be externally provided with a charging circuit, a main through-flow branch adopts a vacuum switch to replace a power electronic device, a fault processing module adopts a half-control device, and the economic performance of the whole machine is excellent; the capacitor reset loop recovers the preset voltage of the capacitor, and the secondary breaking capacity of the circuit breaker is ensured under the medium-high voltage working condition. The device has good use value and economic benefit in the field of direct current power transmission and distribution and the like.

The invention provides a rail transit weak current system operation and maintenance management method. The method comprises the following steps: S1, data acquisition and preprocessing; s2, fault probability and residual service life (RUL) prediction based on an LSTM / Transform + attention mechanism; s3, fault propagation analysis and root positioning based on a graph neural network (GNN); and S4, operation and maintenance decision optimization based on reinforcement learning. According to the invention, through fusion of deep learning, a graph neural network and a reinforcement learning algorithm, a full-process and closed-loop rail transit weak current system operation and maintenance management system is constructed.

The utility model discloses an electric control device and an air conditioner, and relates to the technical field of air conditioners, the air conditioner comprises a function load module, the function load module comprises a first end face and a second end face; the electric control device comprises a strong current control panel and a weak current control panel, and the weak current control panel is electrically connected with the strong current control panel; the strong current control board is arranged corresponding to the first end face, and the weak current control board is arranged corresponding to the second end face. Thus, the electric control device is arranged to be the strong current control panel and the weak current control panel, and the strong current control panel and the weak current control panel correspond to the first end face and the second end face of the function load module respectively, the integrated design of the electric control device and the function load module is achieved, the space inside the air conditioner is effectively saved, and therefore the size of the air conditioner is reduced.

The invention relates to a real-time data encryption transmission method and a real-time data encryption transmission device for a weak current remote monitoring system, in particular to the field of weak current remote monitoring systems, and effectively avoids the problem of update failure caused by link fluctuation in a dynamic network environment by intelligently predicting a stable state of a network to accurately trigger key update. A lightweight distributed consensus mechanism is adopted to generate a security key block, so that the communication overhead is remarkably reduced while the Byzantine fault-tolerant capability is guaranteed; a precise distribution strategy based on topological difference identification greatly reduces redundant transmission, and efficient delivery of keys is realized; the innovative chain verification and zero knowledge synchronization mechanism ensures that the offline node safely recovers the key state, and the overall scheme significantly optimizes the transmission efficiency and the resource utilization rate while improving the system security, and is especially suitable for large-scale and high-dynamic Internet of Things monitoring scenes.

A power transmission tower grounding resistance intelligent measurement method based on ground potential field distributed sensing comprises the steps that a ground potential sensing network is arranged around a power transmission tower grounding device, and a ground potential field distributed measurement system with an iron tower as the center is established; a broadband characteristic coding current signal is injected into the grounding system through a weak current injection module; acquiring potential response data of each node of the ground potential sensing network excited by the feature coding current signal by adopting a distributed synchronous acquisition technology, and reconstructing complete ground potential field spatial distribution from sparse node observation data based on a compressed sensing theory through a signal reconstruction algorithm; and inputting the reconstructed complete ground potential field spatial distribution map into a pre-trained map neural network model, and outputting an intelligent identification result and an anomaly diagnosis conclusion of the ground resistance. According to the invention, non-contact, distributed and high-precision grounding resistance measurement under the condition that a grounding lead does not need to be disconnected is realized, and the measurement precision and reliability under a complex working condition are remarkably improved.

The invention relates to the technical field of weak current engineering, and discloses a high-safety weak current engineering voltage transformation power supply device which comprises a voltage transformation box body, an upper independent space and a lower independent space are formed through a designed top plate and a designed bottom plate, a transformer body and an oil conservator are effectively isolated, the risks of oil leakage and fire disasters are reduced, the safety of the whole device is improved, and the safety of the whole device is improved. A conveying pipe, a liquid outlet pipe and a concentration pipe are designed to form a closed insulating oil circulation system, the conveying pipe is responsible for enabling insulating oil conveyed to the top space of the transformer from an oil conservator to submerge a transformer body from bottom to top, and the liquid outlet pipe guides the oil to the concentration pipe from the top of the transformer. The circulating flow ensures the uniform distribution of oil in the transformer and is beneficial to maintaining constant temperature, so that the cooling efficiency is improved, the transformer can be prevented from being overheated through effective cooling, and the service life of the transformer is prolonged.

The embodiment of the invention provides a gallium nitride totem-pole circuit and a control evaluation system of the gallium nitride totem-pole circuit, and the circuit comprises a gallium nitride power device which comprises an integrated semiconductor tube and an integrated drive circuit; the isolation chip is connected between the control module and an integrated driving circuit of the gallium nitride power device and is used for sending the pulse width modulation signal sent by the control module to the integrated driving circuit, and the isolation chip can ensure the electrical safety of weak current and strong current; the gallium nitride power device is used for controlling the on-off state of the integrated semiconductor tube through the integrated driving circuit according to the pulse width modulation signal sent by the isolation chip; under the condition that the integrated semiconductor tube is conducted, the voltage is output to the control module based on the bus voltage through the integrated semiconductor tube, and the driving circuit is integrated on the gallium nitride power device, so that the circuit design can be simplified, overcurrent protection and undervoltage protection are simultaneously carried out, and the safety of the gallium nitride totem pole circuit is improved.

The invention relates to the technical field of intelligent industry, and discloses a visual communication system based on weak current engineering and an operation method thereof, and the system comprises a multi-mode signal collection module, an intelligent data processing module, a dual-channel communication transmission module, an interactive visualization module and an autonomous control system module. The method comprises the following steps: synchronously acquiring video, audio and environmental parameters through a distributed sensor array; eliminating multi-source signal deviation by adopting a space-time alignment algorithm; feature fusion and quality evaluation are realized based on a deep neural network; dynamically selecting a wired and wireless hybrid transmission mode; an AR enhanced visual human-computer interface is constructed; and implementing a fault self-diagnosis and fault-tolerant recovery mechanism. According to the invention, the bit error rate of the communication system is reduced, the continuity and reliability of the communication process are ensured, and the man-machine interaction efficiency and the emergency response speed are improved.

The air conditioner comprises a main body part, a fresh air part and an electric control box, the main body part comprises a heat exchange assembly, a fan assembly and an air guide assembly, and the length direction of the main body part is a first direction; the fresh air component and the body component are arranged in the first direction and located at one end of the body component in the length direction. The electric control box is located between the main body component and the fresh air component in the first direction and comprises a box body and a weak current plate arranged in the box body, and at least part of weak current working components in the main body component and at least part of weak current working components in the fresh air component are electrically connected with the weak current plate. The electric control box is arranged between the main body part and the fresh air part, the main body part, the electric control box and the fresh air part are arranged in the first direction, the electric control box is electrically connected with the main body part and the fresh air part conveniently, the wiring distance between the electric control box and the main body part and the wiring distance between the electric control box and the fresh air part are short, wiring is simple, occupied space is small, and arrangement is convenient; and the miniaturization design of the air conditioner can be realized.

The invention belongs to the field of power equipment monitoring, and discloses a lightning arrester on-line monitoring system and method based on non-contact differential electric field probe self-adaptive compensation, a non-contact differential voltage probe is adopted, the sensitivity to environmental noise and interference to other-phase high-voltage buses is remarkably reduced through differential measurement, and the monitoring accuracy is improved. And the self-adaptive compensation algorithm is combined, so that the measured signal can be corrected in real time according to the on-site electromagnetic environment change, the amplitude and phase distortion can be effectively inhibited, the accuracy and reliability of the high-voltage side bus voltage acquisition can be improved, and the overall monitoring precision can be obviously improved. According to the invention, high-sensitivity and wide-dynamic-range measurement of lightning arrester current is realized by adopting the fluxgate weak current sensor, accurate detection under small signals is guaranteed, and fine analysis of harmonic components is facilitated.

The utility model discloses an electromagnetic compatibility assessment device, and belongs to the technical field of wireless communication. The equipment comprises a data processing module, a signal generator module, a low-frequency / high-frequency amplifier, a combining unit, a shielding frame and a power supply module, and accurate evaluation of the electromagnetic compatibility of the weak current equipment is realized through modular design. The signal generator module adopts a multi-band vector signal generator to generate configurable interference signals; the low-frequency amplifier and the high-frequency amplifier respectively adopt independent high-precision amplification circuits; and the combining unit couples the two paths of signals into a composite interference signal and outputs the composite interference signal. The shielding frame is made of double-layer aluminum magnesium alloy and is combined with a metal machine frame to form a composite shielding system. And the data processing module regulates and controls parameters in real time through the touch screen, analyzes response data of the tested equipment based on an FFT algorithm, and generates a visual evaluation report.

The invention relates to the technical field of network resource management, and discloses an intelligent building weak current equipment multi-protocol compatible method and system, and a storage medium. The method comprises the steps of collecting multi-protocol network data streams, extracting data packet lengths and arrival interval time as classification features, dividing network data packets into three data packet groups of short and small high frequency, medium stability and large flow, and forming a real-time response network sequence through a priority queue scheduling mechanism and preferentially transmitting the short and small high frequency groups, the method comprises the steps of receiving a real-time response sequence, calculating residual bandwidth to adjust a network buffer area, packaging and splitting a large-flow data packet group to generate transmission sub-blocks, merging the real-time response sequence and the transmission sub-blocks through a merging rule, dividing the merged real-time response sequence and the transmission sub-blocks into a plurality of data stream segments, and distributing a transmission path for each data stream segment. And monitoring bandwidth occupation and transmission delay of each transmission path, and dynamically adjusting path distribution of the data stream segments. According to the invention, the utilization efficiency of network resources and the real-time performance of data transmission in a multi-protocol environment are improved.

The invention provides a signal processing system of a PET-CT (positron emission tomography-computed tomography) detector and the PET-CT detector. The signal processing system comprises a front-end analog processing module and a time-energy dual-path module, the front-end analog processing module is connected with a weight resistance network of the PET-CT detector and comprises a main channel and an auxiliary channel, the main channel is used for amplifying weak current signals, and the auxiliary channel is used for compensating common-mode noise; and the time-energy dual-path module is connected with the front-end analog processing module and an ADC circuit control chip of the PET-CT detector, and is used for separating a signal timestamp and energy information, respectively carrying out parallel processing in a time path and an energy path, and inhibiting crosstalk between the paths. Compared with a traditional single channel, the noise density is effectively reduced, and inter-path crosstalk can be suppressed.

The invention relates to the technical field of construction safety monitoring, in particular to a building construction area safety protection method based on weak current engineering, which comprises the following steps: acquiring tower crane parameters, weight parameters and field environment data; according to the tower crane parameters, the weight parameters, the field environment data and the preset running speed of the tower crane, the swing amplitude of the tower crane after the weight is hoisted is predicted, and the predicted swing amplitude is generated; whether the predicted swing amplitude is larger than a swing amplitude threshold value or not is analyzed, if yes, the preset running speed of the tower crane is adjusted, and the actual running speed is generated; if not, the preset running speed is set as the actual running speed when the corresponding heavy object is lifted; the tower crane is controlled to operate according to the actual operation speed, and the actual swing amplitude of the tower crane in the operation process is obtained; and generating a dangerous area according to the actual swing amplitude and the weight parameters. By adopting the scheme, the swinging amplitude of the heavy object in the hoisting process can be predicted, so that the safety in the hoisting process is improved.

The invention provides an alternating-current weak current high-precision detection system and method, and the system comprises a copper-nickel alloy shielding cover which is used for inhibiting space power frequency radiation interference and power system broadband noise, and a magnetic sensitive element which is used for converting the detected magnetic field change into a corresponding initial current signal, the trans-impedance amplifier is used for converting the initial current signal into a voltage signal; the adaptive noise suppression module collects a power frequency fundamental wave reference signal and a harmonic wave reference signal, generates a harmonic wave anti-phase counteracting signal, and performs anti-phase counteracting on real noise of the initial current signal; the analog-to-digital converter is used for converting the voltage signal into a discretized digital signal, and the discretized digital signal comprises a target signal and a random noise signal; and the FPGA coherent demodulation module is used for carrying out cross-correlation operation and narrow-band filtering on the target signal and the random noise signal to separate out a micro-current signal. The technical problems that in the prior art, composite noise covering is limited, the frequency fluctuation adaptability is poor, and microvolt-level signals are difficult to capture are solved.

The invention discloses an operation monitoring method and system for an intelligent weak current system, and the method comprises the steps: receiving key electrical parameters, collected by a data collection device in real time, of each target device in the intelligent weak current system, and obtaining a key electrical parameter set; performing feature extraction on each parameter of the key electrical parameter set to obtain an extracted key electrical parameter feature set; the key electrical parameter feature set comprises a current feature, a voltage feature, a temperature feature, a sound parameter feature and a vibration analysis parameter feature; screening suspicious fault features from the key electrical parameter feature set by combining an ant colony algorithm and a simulated annealing algorithm; performing feature fusion on the screened suspicious fault features to obtain fused suspicious fault features; and analyzing the fused suspicious fault features through a trained deep learning model to obtain a fault occurrence type of the intelligent weak current system. According to the invention, the fault detection accuracy of the intelligent weak current system can be improved.

The invention discloses an intelligent monitoring system and method for the environment of a room-division weak-current well, relates to the technical field of intelligent monitoring of the environment of a vertical shaft, and solves the problem that the sampling frequency of environment monitoring is difficult to adjust adaptively according to the environment in the environment monitoring of the room-division weak-current well. And monitoring data is difficult to self-correct according to the change of the environment temperature. According to the method, the characteristic output power of each time period is obtained, the dynamic sampling frequency of each time period is determined based on the characteristic output power, and the environment temperature in the weak current well of the to-be-monitored room is collected by adopting the corresponding dynamic sampling frequency; performing cross analysis on the environment temperature collected in each time period, and determining an intelligent regulation and control factor of the to-be-monitored room divided weak current well; performing intelligent calibration on the environment temperature of the to-be-monitored indoor weak current well based on the intelligent regulation and control factor; the flexibility and accuracy of intelligent monitoring of the shaft environment can be improved.

The invention relates to the technical field of electrical engineering and artificial intelligence, and discloses a strong and weak current line intelligent layout and interference prediction analysis method and system.The strong and weak current line intelligent layout and interference prediction analysis method comprises the steps that a state representation and interference propagation model of electronic system layout is constructed; uncertainty quantification is carried out based on Bayesian reasoning and a particle filtering method; solving a Pareto optimal layout scheme set of the strong and weak current line by applying an improved multi-objective optimization algorithm; realizing robust reinforcement learning strategy optimization based on the distributed deep Q network; performing decision support through a preference learning model; according to the method, the problems of difficulty in multi-target balance, weak anti-interference capability and imperfect decision support in the traditional wiring technology are solved, the line layout design quality and efficiency are improved, and the electromagnetic interference risk is reduced.

The utility model relates to the technical field of weak current engineering, in particular to self-adaptive adjusting power supply equipment for weak current engineering, which comprises a base, a transmission frame, a lifting assembly, a connecting assembly, a transmission assembly and a fixing assembly, the lifting assembly comprises a moving seat, a transmission rack, rotating racks, rotating shafts and rotating gears, the moving seat is slidably connected with the transmission frame, the inner side of the moving seat is fixedly connected with the transmission rack, the two rotating racks are fixedly connected with the moving seat, and the two rotating shafts are rotatably connected with the transmission frame; the two rotating gears are fixedly connected with the rotating shaft, the connecting assembly is connected with the rotating shaft, the transmission assembly is connected with the transmission frame, and the fixing assembly is connected with the connecting assembly. And four corners of the fixed table are not synchronously lifted, so that the fixed table is inclined.

The invention discloses a machine tool feeding system fault diagnosis method based on multi-level current characteristic distillation. The method comprises the following steps: collecting vibration and current time domain signals and respectively converting the vibration and current time domain signals into two-dimensional time-frequency diagrams; training a source model by using the vibration time-frequency diagram; cloning and freezing a source model, constructing a target model with the same structure, inputting the current time-frequency diagrams into the source model and the target model at the same time, and optimizing the target model through combination of multi-level feature distillation and a multi-target loss function; and finally, fault diagnosis based on the current signal is realized by using the optimized target model. According to the method, source domain data does not need to participate in training, knowledge migration from a vibration mode to a current mode is realized, the problems of weak current signal fault features and scarcity of labeled samples are effectively overcome, and the fault diagnosis precision and cross-working-condition adaptive capacity under the small sample condition are improved.

The utility model relates to a miniature current transformer, which comprises a shell and a coil arranged in the shell, the coil comprises an iron core and a secondary winding wound on the surface of the nanocrystalline iron core, and the iron core is manufactured by performing heat treatment on nanocrystalline materials in a magnetic field; the shell is provided with a center channel which is arranged in a penetrating mode, a primary side wire can penetrate through the center channel, and the number of penetrating turns of the primary side wire is one. The miniature current transformer can realize output current at the secondary side when muA-level small current is input, fills the blank of a traditional transformer in the field of low-current measurement, improves the monitoring capability of a power system on a small current signal, is helpful for more accurately mastering the change condition of weak current in the power system, and improves the measurement accuracy. Accurate data support can be provided for electric leakage monitoring of some precise electronic equipment, current detection of a low-power-consumption circuit and the like, so that the safety and the reliability of a power system are improved.

The invention discloses an intelligent substation weak current system lightning protection performance evaluation method, and belongs to the technical field of substations. Comprising the following steps; the method comprises the following steps: S1, data acquisition: collecting information of all weak current system equipment in a transformer substation, including equipment types, installation positions and connection modes, and then acquiring local lightning activity data; through multi-scene simulation, lightning events of different types and intensities can be simulated, the lightning protection performance of the system in various lightning scenes can be comprehensively evaluated, the lightning protection performance is not limited to a certain specific condition, meanwhile, the lightning impulse process can be realistically restored through multi-scene simulation, more real lightning protection performance evaluation is provided, and the lightning protection performance of the system is improved. And then, by comparing simulation results under different lightning scenes, weak links and potential risk points of the system under different lightning conditions can be found, and targeted improvement is carried out, so that the overall lightning protection performance of the weak current system is improved.

The invention discloses a weak current adaptive wiring path planning method and device and a storage medium, and relates to the technical field of data processing. The method comprises the following steps: constructing a wiring space world coordinate system; constructing a first weak current wiring limitation area coordinate; defining coordinates of a second weak current wiring limitation area through the user side; a union set is taken, and coordinates of the weak current wiring limitation area are obtained; obtaining a weak current wiring starting point coordinate and a weak current wiring terminal point coordinate, and carrying out wiring optimization based on the weak current wiring limiting area coordinate to obtain a weak current wiring scheme; and performing virtual layout on the weak current wiring scheme in the wiring three-dimensional space model to obtain a wiring three-dimensional space updating model, and sending the wiring three-dimensional space updating model to a user side for visual display. The technical problem that in the prior art, the wiring planning efficiency is low due to the fact that the weak current wiring path planning process is prone to being interfered by strong current wiring is solved, wiring optimization is conducted by constructing the weak current wiring limiting area and combining the three-dimensional space model, and the technical effect of improving the wiring planning efficiency is achieved.

The utility model discloses a control box and an energy storage device, and relates to the technical field of control boxes, and the control box comprises a box body, a weak current loop and a strong current loop. The box body is provided with a containing cavity, and the containing cavity comprises a first containing cavity and a second containing cavity which are separated. The weak-current loop is located in the first accommodating cavity, and the strong-current loop is located in the second accommodating cavity. According to the control box, signal interference between the strong current loop and the weak current loop can be reduced, and the space utilization rate in the containing cavity can be improved.