253 results about "Telecommunications engineering" patented technology

The invention discloses a communication engineering construction dynamic optimization method based on multi-dimensional perception, and the method comprises the steps: collecting the multi-dimensional perception data of a construction site in real time through a multi-source heterogeneous sensor network, including environment parameters, equipment operation states, construction progress and personnel behavior data; performing space-time alignment processing on the multi-dimensional sensing data, and constructing a space-time associated dynamic construction digital twinborn body; establishing a dynamic optimization model based on a reinforcement learning algorithm, taking construction efficiency maximization, resource loss minimization and safety risk minimization as target optimization functions, and embedding risk constraint conditions; inputting the dynamic construction digital twin into the dynamic optimization model, and outputting a multi-dimensional parameter optimization instruction set comprising equipment scheduling parameters, construction path parameters and resource configuration parameters; and performing real-time performance evaluation on the multi-dimensional parameter optimization instruction set through edge computing nodes, and dynamically adjusting weight parameters of the model to form closed-loop feedback control. The purpose of cooperatively improving the construction efficiency, the safety and the economical efficiency is achieved.

The invention relates to the technical field of communication engineering, and discloses a power line carrier and wireless dual-mode fusion optimized communication method, which comprises the following steps of: 1, acquiring signal quality, noise and delay data of a power line and a wireless link in real time, and constructing a prediction model by utilizing historical data; step 2, dynamically adjusting a judgment threshold value of link switching in real time based on the prediction model, and ensuring that switching is triggered only when the signal change exceeds a preset range; step 3, based on the dynamic threshold, combining multiple indexes of signal-to-noise ratio, delay, packet loss rate and network load; according to the method, the necessity of link switching can be more intelligently judged by dynamically adjusting the judgment threshold of link switching and adopting a fuzzy logic decision mechanism, frequent switching during tiny fluctuation of signals is avoided by dynamic threshold adjustment, and a fuzzy logic system integrates multiple factors, so that the decision is finer, and the reliability of link switching is improved. And unnecessary delay and resource waste are reduced, so that the stability of a communication system is improved.

The invention relates to the technical field of communication engineering, in particular to a communication optical cable line intelligent inspection fault point rapid positioning method and device, and the method comprises the steps: obtaining optical cable line state data, constructing an intelligent fault detection model, recognizing an abnormal signal through wavelet transform and a threshold determination method, training an LSTM neural network in combination with historical fault data, and pre-judging a fault type. When a fault is detected, an unmanned aerial vehicle inspection unit is triggered, an inspection path is planned based on an improved Dijkstra algorithm according to the fault type and suspected fault area geographic information, an optical cable line is scanned and detected through a laser radar, physical fault features are recognized through a YOLOv5 algorithm, and geographic coordinates of a fault point are calibrated in combination with an inertial navigation system; and fusing sensor data and a detection result, evaluating a fault confidence level by adopting a DS evidence theory, and generating an alarm work order. Therefore, the problems of long positioning time consumption, high omission ratio, difficulty in distinguishing fault types and the like in the prior art are solved.

The invention relates to the technical field of intelligent buildings, in particular to a communication engineering supervision auxiliary analysis method based on artificial intelligence, and the method comprises the following steps: S1, collecting multi-source communication engineering data of a construction site; s2, preprocessing the acquired multi-source communication engineering data; s3, performing intelligent analysis on the construction quality, the construction progress and the safety risk, and generating a visual analysis result; s4, predicting types and time of faults which may occur in the communication engineering; s5, when it is detected that the multi-source communication engineering data is abnormal or the fault prediction module predicts a fault, early warning information is generated; and S6, displaying the data analysis result, the fault prediction result and the early warning information in the form of charts, three-dimensional models or augmented reality through a visual display module. According to the method, the problems of data islands, one-sided analysis, early warning lag, low decision efficiency and the like in traditional engineering supervision are solved, comprehensive and intelligent upgrading of the supervision process is realized, and the requirement of intelligent supervision in a complex engineering scene is met.

The invention relates to the technical field of communication engineering, in particular to a high-precision charge-discharge balanced intelligent positioning system integrating Beidou and ultra-wideband technologies, which integrates the Beidou and ultra-wideband technologies, introduces AI artificial intelligence, provides data support for intelligent safety management and control of engineering field personnel based on big data, and improves the safety of the engineering field personnel. The engineering site safety management level is improved; comprising a fusion type single base station which is installed and deployed in a place needing positioning and is used for receiving positioning signals and transmitting data; the solar energy complementing multimode positioning tag is worn by a constructor and is used for intelligently switching a positioning mode, complementing energy, monitoring a state and returning data; and the AI intelligent analysis system is deployed in an engineering command center or a monitoring center and is used for receiving the data and carrying out intelligent analysis, management and decision-making assistance.

The invention discloses an intelligent safety capacity improving method and device for guaranteeing deterministic time delay, and belongs to the technical field of computer networks and communication engineering.The method comprises the steps that an ultra-reliable low-delay communication (uRLLC) network uRLLC communication network model is constructed; aiming at the uRLLC communication network model, applying a random network calculation technology (SNC) to obtain a deterministic time delay violation probability general solution suitable for different channels, and deriving a time delay boundary of the uRLLC communication network model; on the basis of the time delay boundary of the uRLLC communication network model, a machine learning algorithm is adopted, a transmission resource configuration scheme of deterministic time delay guarantee is obtained, and the intelligent safety capacity is maximized on the premise that the channel reliability is guaranteed. By adopting the technical scheme provided by the invention, the channel security capacity can be maximized on the basis of ensuring the deterministic time delay, so that the network performance is improved.

The invention discloses a construction progress intelligent pre-control method based on a large model and related equipment, and the method comprises the steps: carrying out the semantic coding and structuring of construction contract terms, constructing a contract term relation graph, and generating construction review opinions; determining an engineering task according to the structured field set, binding the engineering task and the engineering quantity list to obtain an engineering quantity set corresponding to the engineering task, constructing a task-resource allocation optimization model according to the engineering quantity set and a resource database, and generating an initial task execution plan; calculating a comprehensive deviation index of the construction stage, and further generating early warning and optimization suggestions; and generating an acceptance report in combination with information such as an actual construction state vector and constructing an engineering resume chain. According to the embodiment of the invention, the method can solve the problems of one-sided text understanding, extensive resource allocation, lag in deviation analysis, low acceptance efficiency and the like in a conventional management method, and effectively reduces the project delay rate and compliance risk. The method can be widely applied to the technical field of intelligent management of communication engineering.

The invention discloses a positioning device for communication engineering construction wiring, and belongs to the technical field of communication engineering.The positioning device for communication engineering construction wiring comprises a U-shaped frame, and the top of the U-shaped frame is provided with a fixing and positioning mechanism used for fixing a communication cable; one end of the U-shaped frame is symmetrically provided with a mobile positioning mechanism for fixing a communication cable, and one end, close to the mobile positioning mechanism, of the U-shaped frame is provided with a bending positioning mechanism matched with the mobile positioning mechanism. When the rotating base is unfolded, the rotating base drives the three sets of strip-shaped plates to be gradually rotated and unfolded through the connecting pieces, the angles of the strip-shaped plates can be synchronously adjusted according to the turning radian of a communication cable in the bridge, a third lower clamping groove is made to be attached to the trend of the cable all the time, shape follow-up fixing is achieved, and then the communication cable can be directly fixed at the turning position; the stress generated by bending of the communication cable is reduced, the service life is prolonged, and the risk of bending damage to the communication cable during construction is reduced.

The invention relates to the technical field of communication engineering, in particular to a communication line operation and maintenance method and system based on fuzzy logic and a storage medium. The method comprises the following steps: acquiring real-time communication line parameters; performing fault prediction on the real-time communication line parameters through the dynamic fuzzy learning model to obtain fault prediction data; inputting the fault prediction data into a fuzzy reasoning model for analysis to obtain a fault possibility; and performing communication line operation and maintenance on the fault possibility according to the alarm threshold. Faults can be accurately predicted, adaptability is improved, response time is shortened, and active fault prevention is achieved.

The invention is suitable for the technical field of floating cables, and provides a floating power cable based on communication engineering, which comprises a conductive part, a signal part and two clamping parts, the conductive part and the signal part are clamped and matched through the two clamping parts; each of the conductive part and the signal part comprises a cross-linked polyethylene insulated flexible substrate; clamping rubber strips are symmetrically fixed on the surface of the cross-linked polyethylene insulating flexible substrate, and clamping grooves matched with the clamping rubber strips are symmetrically formed in the bottom surface of the cross-linked polyethylene insulating flexible substrate; the clamping part comprises two groups of U-shaped rubber seats which are arranged in parallel; a rubber plate is fixed between the end parts of the two U-shaped rubber seats; airbags are fixed on the side surfaces of the rubber plates; according to the floating power cable, the clamping parts are respectively clamped and matched with the conductive parts and the signal parts, so that a traditional cable integrated structure is replaced, and later targeted overhaul and maintenance are facilitated; through the arrangement of the flat structures of the conductive part and the signal part, the conductive part and the signal part are convenient to roll and transport, and the overall buoyancy effect of the cable is improved by cooperating with the use of the air bag.

The utility model discloses a cable tension detection device for communication engineering, which comprises a connecting plate, a connecting frame, a clamping assembly, a pulling assembly and a pushing detection mechanism, a wire inlet is formed in the center of the connecting plate, the connecting frame is fixedly connected to the middle of one side of the connecting plate, a wire outlet is formed in the center of one end, far away from the connecting plate, of the fixing frame, and the wire outlet is connected with the clamping assembly. Sliding grooves are formed in the middles of the upper side wall and the lower side wall of the connecting frame, the clamping assemblies are movably connected to the upper side and the lower side of the end, close to the connecting plate, of the connecting frame, the pulling mechanism is fixedly connected to the end, close to the wire outlet hole, in the connecting frame, and the pushing detection mechanism is fixedly connected to the outer side wall of the connecting frame and slides in the length direction of the sliding grooves. The utility model belongs to the technical field of cable detection, and particularly relates to cable tension detection equipment for communication engineering, which aims at continuous tension detection during cable production, can detect cables at different positions and realizes tension detection by using a pull and push dynamometer.

The invention relates to a communication engineering full-process safety production risk dynamic assessment method, in particular to the technical field of communication engineering, and effectively overcomes the hysteresis quality and one-sidedness of a traditional static assessment method. According to the method, real-time data stream processing and an online learning mechanism are fused, continuous perception and quantitative evaluation of safety production risks are realized, short-term sudden risk response and long-term law research and judgment can be intelligently balanced, the timeliness of risk early warning and the accuracy of decision support are remarkably improved, the engineering field safety management and control capability is enhanced, and the engineering field safety management and control efficiency is improved. The occurrence probability of safety accidents is reduced.

The invention discloses optical fiber welding and cutting integrated equipment based on intelligent closed-loop feedback. Through an intelligent closed-loop feedback system, a sensor collects key data in real time and transmits the key data to a controller, the controller automatically adjusts parameters after intelligent algorithm analysis, precise control over the process is achieved, and welding and cutting quality and efficiency are guaranteed. And compared with traditional equipment, the automation degree is high, personal errors can be reduced, the labor intensity is lowered, and the working efficiency is improved. The system has an intelligent diagnosis function, can monitor the state of equipment in real time, early warns potential faults, and enhances the stability and reliability. The equipment is suitable for the fields of communication engineering, optical fiber manufacturing and the like, can meet the requirements of multiple scenes, and assists the intelligent development of related industries.

The invention relates to the technical field of artificial intelligence and communication engineering auditing, in particular to a multi-task allocation and decision optimization system for a communication engineering auditing agent, which comprises a data perception analysis module, a task feature vector generation module and a task feature extraction module, and the data perception analysis module is used for acquiring communication engineering settlement documents and unstructured field data and extracting features to generate task feature vectors; the task entropy evaluation module calculates a task information entropy, and divides an audit task into a low-cognitive load task or a high-cognitive load task; the cognitive resource adaptation module constructs an intelligent agent capability model, dynamically constructs an intelligent agent cooperation topological structure based on a cognitive adaptation degree coefficient and allocates tasks; the decision confidence monitoring module tracks an auditing process in real time, calculates a decision confidence fluctuation rate, and executes automatic auditing termination or triggers manual intervention operation; the efficiency feedback adjustment module calculates a dynamic resource efficiency ratio; according to the method, the problem that a fixed rule process cannot cope with high dynamic performance of unstructured data is solved, and dynamic balance between auditing efficiency and computing power cost is realized.

The utility model relates to the technical field of communication engineering, and discloses a communication engineering wiring measuring tool, which comprises a ruler plate, a first turntable is inserted into the left end of the ruler plate, the inner part of the ruler plate is of a hollow structure, and the right end of the first turntable is coaxially connected with a lead screw. Upper mounting plates are connected to the left side of the front part of the ruler plate and the corresponding positions of the front part of the concentric-square-shaped block; the screw rod is inserted into the upper mounting plate through a bearing, the lower part of the screw rod is screwed with a lower mounting plate, and the front side of the upper mounting plate and the front side of the lower mounting plate are connected with arc-shaped clamping plates. According to the communication engineering wiring measuring tool, a first rotating disc is rotated to drive a lead screw to rotate, a sliding block can drive a connecting plate and a concentric-square-shaped block to move left and right, then a right arc-shaped clamping plate can move rightwards to straighten and tighten a cable, loosening or bending caused by the weight or the material of the cable can be eliminated, and the measurement accuracy is improved. It is ensured that the cable is in a tight state in the whole measurement process, and the measurement accuracy is improved.

The invention discloses a signal switching device for communication engineering, and belongs to the technical field of wiring connection, the signal switching device comprises a converter body, at least two clamping plates, an adjusting assembly and an elastic limiting assembly, and the converter body is provided with a wiring port; every two clamping plates are arranged around one wiring port and are opposite to each other in the radial direction; the adjusting assembly comprises a first connecting block and a first spring, and the first connecting block is movably arranged on the converter body, rotatably connected with the clamping plate and suitable for driving the clamping plate to move; the first spring is connected with the first connecting block so as to be suitable for applying radial inward elastic acting force to the first connecting block; the elastic limiting assembly is connected with the clamping plate and the adjusting assembly and suitable for limiting rotation of the clamping plate relative to the first connecting block. The multiple adjusting assemblies and the multiple elastic limiting assemblies correspond to the clamping plates in a one-to-one mode. A connecting line can be clamped, random bending deformation of the connecting line is prevented, and stable connection between a wiring port and the connecting line is kept; the stability of signal transmission can be ensured, and a good use effect is achieved.

This invention discloses a communication engineering equipment box with a screw-driven telescopic placement plate and bidirectional limiting mechanism, relating to the field of computer technology. The technical solution includes a box body with four legs at the bottom and a door at the front, with a handle at the front of the door for opening. Inside the box are three rows of placement plates, each with several ventilation holes at the top. These ventilation holes ensure proper heat dissipation at the bottom of the equipment during operation. A limiting mechanism allows two limiting plates to close inwards, securing the computer equipment and effectively improving its stability within the box. Even if the box is impacted, the computer equipment remains stable. When periodic equipment inspection is required, the placement plate can be extended from the box via a transmission mechanism, allowing the entire computer equipment to be removed from the box for convenient maintenance.

The invention discloses a time sensor scheduling method based on a 5G deterministic network, and relates to the technical field of communication engineering, and the method comprises the steps: enabling an automatic equipment group to be wirelessly connected with a time sensor through a 5G network, and obtaining the real-time operation time, the remaining processing time and the maximum operation time of each equipment; calculating a load value according to the real-time operation time and the maximum operation time, judging the load condition of the equipment according to the load value, marking categories and sorting, and carrying out rest scheduling according to the category and sorting; task load division, preferential distribution of emergency tasks, reasonable distribution of conventional tasks and elastic tasks are carried out by combining the theoretical residual capacity of the equipment, the tasks are stored in a buffer pool for specific equipment application, the task completion condition is monitored in real time, and task load stripping and equipment category adjustment are carried out when necessary; according to the method, automatic equipment scheduling and task allocation can be optimized, the production efficiency is improved, and the equipment fault risk is reduced.

The utility model discloses a communication engineering antenna support which comprises a supporting rod, the outside of the supporting rod is fixedly connected with three fixing seats, and the three fixing seats are symmetrically distributed. According to the communication engineering antenna support, an adjusting seat slides downwards, a connecting rod drives a folded first supporting leg to be away from a supporting rod, the connecting rod rotates upwards relative to the first supporting leg in the process, at the moment, the connecting rod drives a circular plate to rotate through a first rotating shaft, and the circular plate drives a sliding rod to extrude the inner wall of a sliding groove; the movable plate drives the rack to move, the rack drives the second rotating shaft to rotate through the gear, the second rotating shaft drives the second supporting leg to rotate, and when the first supporting leg rotates by 90 degrees and is completely unfolded, the second supporting leg rotates by 180 degrees and is also completely unfolded. The first supporting leg and the second supporting leg enable the overall supporting area to be larger, thereby effectively lowering the gravity center of the antenna and ensuring the overall stability.

The utility model belongs to the technical field of wireless signal transmitting and receiving devices, and particularly relates to a wireless signal transmitting and receiving device for communication engineering, which comprises a device shell. A signal emitter and a signal receiver are arranged on the device shell, a heat conduction frame is arranged at the bottom of the inner side of the device shell, a wireless signal circuit board is arranged above the heat conduction frame, groove bodies are symmetrically formed in the two sides of the device shell, a heat dissipation air row is detachably arranged on the groove body on one side, and a dustproof net piece is arranged on the groove body on the other side. The heat conduction frame is provided with a guiding and connecting mechanism, a heat discharging mechanism is arranged on the upper portion of the device shell, the heat conduction frame comprises a lower heat conduction plate arranged at the bottom of the inner side of the device shell, a plurality of vertical heat conduction plates are evenly arranged above the lower heat conduction plate, and an upper heat conduction plate is arranged above the vertical heat conduction plates. The upper heat-conducting plate, the lower heat-conducting plate and the vertical heat-conducting plate form a plurality of air flues, so that electric appliance elements on the wireless signal circuit board can be subjected to efficient heat dissipation treatment.

The application relates to the technical field of communication engineering, and discloses a synchronous acquisition and processing method of a phased array system, wherein the phased array system comprises multiple acquisition channels; delay synchronization is performed on the acquisition channels to achieve a preliminary synchronization state; inter-channel phase synchronization is performed on the acquisition channels in the case that the acquisition channels reach the preliminary synchronization state and further phase synchronization is needed; for a first synchronization consistency requirement, on the basis that the acquisition channels reach the preliminary synchronization state through delay synchronization, a first phase synchronization operation is performed to achieve a first phase synchronization state; for a second synchronization consistency requirement, on the basis that the acquisition channels reach the preliminary synchronization state through delay synchronization, a second phase synchronization operation is performed to achieve a second phase synchronization state. The beneficial effect is that the acquisition channels can be subjected to targeted synchronization operations, and the synchronization degree among the acquisition channels in the phased array system is significantly improved.

The invention relates to a use method of an intelligent safety waistcoat, which comprises the following steps: binding a constructor with a correspondingly worn intelligent safety waistcoat, and monitoring the physical condition of the corresponding constructor through the intelligent safety waistcoat; according to the construction task, a plurality of constructors are distributed to a plurality of construction areas; the real-time positions of a plurality of constructors are monitored by positioning the intelligent safety waistcoat; and according to the construction progress, the number of the constructors in the multiple construction areas is adjusted until the construction task is completed. According to the intelligent safety vest, through the safety vest worn by a constructor, the physical condition of the constructor is monitored, and the position coordinate of the constructor is positioned, so that the safety protection of the constructor is improved, the number of field construction workers can be counted in real time, the field construction workers can be dynamically managed, and the construction cost is reduced; and the field communication engineering technology development is promoted.

The utility model relates to the technical field of communication line arrangement, and discloses a wiring buckle for communication engineering, which comprises a buckle frame, the front surface of the buckle frame is provided with an overturning locking assembly, the overturning locking assembly is used for flexibly adjusting and ensuring stability limitation, the inner side of the buckle frame is provided with a splicing adjusting assembly, and the splicing adjusting assembly is used for adjusting the splicing adjusting assembly. And the splicing adjusting assembly is used for adjusting intervals to limit lines with different sizes. According to the wiring buckle for communication engineering, the overturning locking assembly is installed, an overturning sleeve can be limited through a torsional spring shaft, meanwhile, upward overturning force can be applied, a spring piece is arranged in the wiring buckle, a sliding plate on the top can be pushed to ascend, and after ascending, a buckle insertion block is pushed to be embedded into the inner side of the upper end of a buckle frame; the adjustable overturning capacity is applied through the torsion spring structure, then limiting is conducted through the buckle insertion block, the problem of falling caused by pulling can be avoided, and meanwhile deformation of the elastic structure caused by excessive force application can be avoided.

The present invention relates to the technical field of optical cable laying equipment, and discloses an automatic optical cable laying device for communication engineering, comprising a vehicle body, a traveling mechanism provided at the lower portion of the vehicle body, a trench excavation mechanism provided on one side of the vehicle body, a soil covering mechanism provided on the other side of the vehicle body, a driving mechanism and an optical cable positioning and laying mechanism provided in sequence between the trench excavation mechanism and the soil covering mechanism on the vehicle body, and the traveling mechanism, the trench excavation mechanism and the soil covering mechanism are connected to the driving mechanism via a linkage mechanism. The beneficial effects of the present invention are: the trench excavation, cable laying, and backfilling are integrated into one, and the entire optical cable laying process can be basically completed automatically, thereby reducing the steps of manual operation, reducing labor intensity, and improving laying efficiency. In addition, each mechanism is also linked, with high coordination of actions, without the need for excessive power parts, and reducing production costs.

This utility model relates to the field of communication engineering cabinet technology, and more particularly to a weatherproof outer shell for outdoor communication engineering equipment, including a cabinet; it also includes a base, an airbag, a waterproof air pump, a water level sensor, a PLC controller, a sliding frame, a screw, a slider, a drive frame, an annular scraper, a sliding sleeve, a sliding rod, and a limiting ring. The bottom of the cabinet is provided with a base, and the top of the inner surface of the base is provided with an airbag. The top of the right side of the inner surface of the base is connected to the waterproof air pump, and the output end of the waterproof air pump is connected to the airbag. The water level sensor is provided at the top of the right side of the inner surface of the base corresponding to the position of the waterproof air pump. This utility model, by setting up an airbag, when the water level sensor detects that the water level exceeds the safety threshold, the PLC controller activates the waterproof air pump to inject gas into the airbag. The buoyancy of the airbag in the water pushes the cabinet, causing the cabinet to move upward along the sliding rod, thereby raising the cabinet and preventing water immersion.

The utility model discloses an anti-loosening suspension insulator, which relates to the technical field of communication engineering, and comprises a central column, an abutting ring is fixedly arranged at the bottom of the outer wall of the central column, a plurality of insulating ceramic rings are movably sleeved on the central column above the abutting ring, a threaded column is fixedly arranged at the top of the central column, and the threaded column is fixedly connected with the central column. The top of the threaded column is fixedly provided with an anti-loosening assembly which tightly presses the plurality of insulating ceramic rings on the outer wall of the central column. The main body structure comprises the central column, the outer wall of the central column is sleeved with the multiple insulating ceramic rings, the side faces of the multiple insulating ceramic rings are provided with the self-cleaning assemblies based on wind power, and the self-cleaning assemblies can scrape away sundries possibly attached to the outer walls of the multiple insulating ceramic rings irregularly through high-altitude wind power. The problems that a conductive channel is possibly formed on the surface of the insulator due to pollutant accumulation, leakage current is increased, the insulation effect is reduced, workers need to climb high frequently, and the cleaning process of the suspension insulator is high in risk and time-consuming are solved.

The invention provides a transmission network route generation method and device, equipment, a medium and a program product, and relates to the technical field of communication engineering, and the method comprises the steps: determining resource objects of a plurality of hierarchies, and distributing a corresponding unique identifier for each resource object; according to the unique identifier, establishing a hierarchical topological association relationship between the hierarchical resource objects to obtain a hierarchical resource model; adding corresponding attribute information to each resource object through a hierarchical resource model; determining a corresponding macroscopic routing direction according to the attribute information and the hierarchical resource model; determining a candidate routing scheme set according to the macroscopic routing direction and the hierarchical topology association relationship; screening the candidate routing scheme set according to the plurality of target dimensions to obtain a screened optimal routing scheme or a sorted candidate scheme list; wherein the target dimension comprises time delay, the number of nodes and routing preference; the method provided by the invention is used for realizing the technical effect of improving the generation efficiency and flexibility of the transmission network route.

This utility model relates to the field of communication engineering technology and discloses a communication engineering cabinet, including a main cabinet. The front side wall and the adjacent side wall of the main cabinet are both panelless structures. An expansion cabinet is installed on one side wall of the main cabinet. The expansion cabinet includes two expansion plates, a set of side plates, and two connecting plates. The two expansion plates are rotatably installed on the front and rear parts of the panelless side wall of the main cabinet. The two sets of expansion plates are spliced ​​together to form the side wall panel of the main cabinet. A side plate connects the two sets of expansion plates on the side away from the main cabinet. The two connecting plates are rotatably installed on the upper and lower side walls of the main cabinet and are respectively connected to the upper and lower sides of the two sets of expansion plates. The advantages of this utility model compared with the prior art are: the panelless side of the main cabinet is formed into a complete main cabinet by using two sets of spliced ​​expansion plates as side wall panels; the expansion cabinet is extended by unfolding the two sets of expansion plates and connecting plates and connecting them to the side plates, and the expansion cabinet is connected to the main cabinet, making the cabinet space more sufficient.

The utility model relates to the technical field of communication engineering technology, and discloses a wiring measuring tool, which comprises a device body. According to the device body, a cable cylinder is arranged at one end of the top of a base; the measuring assembly is arranged at the top of the base; a winding assembly is arranged at the top of the base, and the winding assembly comprises a driving assembly arranged at the top of the base and located on one side of the cable barrel; the driving wheel is arranged on the driving assembly; the first driven wheel is arranged at one end of the cable cylinder; the first belt is arranged on the outer sides of the driving wheel and the first driven wheel; the winding sleeve is arranged at the other end of the top of the base; the second driven wheel is arranged at one end of the winding sleeve; the second belt is arranged on the outer side of the driving wheel and the outer side of the second belt, winding of the measured cable is facilitated through the winding assembly, protectiveness of the measured cable is improved, and the use effect of the cable is guaranteed.

The invention discloses a communication engineering installation line inspection robot, and relates to the technical field of robot line inspection, the communication engineering installation line inspection robot comprises an inspection carrier, a control module is installed above the inspection carrier, an inspection module is installed above the control module, an assembly plate is installed in an external connection cylinder, and communication pipelines are uniformly installed at the output end of the external connection cylinder; the external connection cylinder and the inspection module are located on the same axis, and when the inspection module is in a use state, the external connection cylinder reciprocates through an internal assembly plate, and when gas is converged to the centering ring cylinder through a drainage pipe and then is sprayed out through an arc-shaped nozzle, formed annular airflow can completely cover the surface of a camera, so that the camera is more convenient to use. Dynamically-attached pollutants such as rainwater and dust are removed in time, shielding or light spots are prevented from being formed on the lens, and it is ensured that tiny defects on the edge of the cable are always clear and distinguishable; compared with the prior art, the active cleaning mechanism can deal with pollution of an outdoor complex environment in real time.