108results about How to "Avoid major economic losses" patented technology

The invention discloses a remote fire monitoring electric meter system based on Internet of Things. The remote fire monitoring electric meter system comprises electric meter detectors, an Internet of Things monitoring detectors and a monitoring center platform, wherein the electric meter detectors are used for detecting residual current, wire through current and temperature data in a circuit in real time; the Internet of Things monitoring detectors are used for analyzing and processing data sent by the electric meter detectors, judging whether phenomena that the electricity is leaked, the circuit is overloaded and the temperature of electric devices is abnormal occur in the circuit or not, and sending the abnormal phenomena to the monitoring center platform through the Internet of Things; the monitoring center platform is used for comprehensively managing the abnormal data sent by the Internet of Things monitoring detectors, alarming through a central alarming platform when the circuit is abnormal, accurately displaying positions of faults, automatically informing relevant responsible personnel to repair the faults and eliminate hidden danger through calls or short messages. The remote fire monitoring electric meter system can be simultaneously linked with a fire protection monitoring center, so that the fire protection monitoring and early-warning capability can be improved; the remote monitoring is achieved; the fire protection force can be remotely deployed; new generation of information network communication is accelerated and promoted; the electricity safety innovative service mode is promoted.

The invention provides a mechanical equipment fault diagnosis method based on a machine learning classification algorithm. The mechanical equipment fault diagnosis method comprises the following stepsthat step 1, an acceleration sensor is used for collecting vibration signals of key points of mechanical equipment, and original waveforms of the vibration signals are stored; step 2, the collected vibration signals in the step 1 are screened and judged; step 3, the screened vibration signals are preprocessed; step 4, acceleration signals, velocity signals and envelope signals obtained in the step 3 are subjected to feature extraction; and step 5, the obtained feature vector in the step 4 is input into a fault classification model, and the model outputs fault diagnosis results corresponding to the equipment. The mechanical equipment fault diagnosis method based on the machine learning classification algorithm establishes an intelligent diagnosis model of the mechanical equipment, and intelligent diagnosis of fault of the mechanical equipment is further realized.

The invention provides a translational start-stop plane gate system for a ship lock, which comprises plane gates 1, translational start-stop devices 2, gate grooves 3 and common gate grooves 4, wherein each plane gate 1 is in a common plane gate structure, and consists of a panel 52, a plurality of horizontal main beams 49, a plurality of horizontal secondary beams 48, two edge columns 51 and a plurality of longitudinal beams 50; each translational start-stop device 2 can be self-walking, consists of a power source 5, a transmission shaft 7, elastic couplers 8, a driving wheel 9, a reducer 10, rollers 11, an underwater rail 12, gate limiting devices 13, an elastic anti-collision device 14 and a power source control system 15, and is fixedly mounted at the bottom of each gate 1; the power sources 5 transmit a torque to the driving wheels 9 through the transmission shafts 7, the couplers 8 and the reducers 10, so that the driving wheels 9 roll on the rails 12, the rollers 11 roll on the underwater rails 12 with the driving wheels 9 together, and the plane gates 1 are driven to move horizontally to achieve start and stop of gates; and start and stop motion of the gates is along horizontal straight lines of the rails.

The invention discloses an Internet of Things-based suspension type dry powder intelligent fire extinguishing system which comprises a fire monitoring terminal device and a fire extinguishing terminal device, wherein the fire monitoring terminal device comprises an ultraviolet / infrared compound detector, a smoke sensor, a temperature sensor and a camera arranged on an electrical platform; the fire extinguishing terminal device comprises a non-storage pressure suspension type dry powder fire extinguishing device, a central control processing platform, and a center server connected with an electric trigger of the fire monitoring terminal device and the fire extinguishing terminal device through a signal, the center server is connected with a touch display screen, a manual control unit, a sound-light alarm unit, a short message sending unit and a communication unit, and the communication unit is connected with a building intelligent network system, a 119 fire alarm network and / or mine digital automatic system. The Internet of Things-based suspension type dry powder intelligent fire extinguishing system has the beneficial effects that the alarm can be immediately sent when fire is caused, the fire alarm information can be immediately transmitted for sending the alarm, the fire is extinguished in an initial state by starting a dry powder fire extinguishing device, and thus heavy economic losses are avoided.

The present invention provides a method for long-term maintaining the target connection state of a pseudo base station for 4G detection and control, which is characterized in that: a positioning device is used as a pseudo base station, and after a designated UE is allowed to reside on the positioning device, the positioning device is used to locate the designated UE, including continuously repeating at the designated Before the UE connection times out, modify the tracking area code TAC of the positioning device to trigger a tracking area update request, thereby maintaining the connection process and supporting unlimited time to obtain the precise location of the target during the process of locating the specified UE. The object of the present invention is to solve the problem of the designated UE being disconnected in the above process, solve the time limit caused by the number of TAUs in the positioning process, and improve the positioning success rate.

The invention discloses a drilling machine integrated loop network communication control system based on a PLC. The drilling machine integrated loop network communication control system based on the PLC comprises a master operational console, wherein the master operational console is respectively connected with a master operational console PLC station and a client end, the client end is connected with a network NET2 and a network NET3 simultaneously, the network NET3 is connected with a CCTV controller, the network NET2 is connected with an auxiliary server, a database server and a master server, the network NET3 is connected with a network NET5, the network NET5 is connected with a master long-distance monitoring station, the network NET2 is connected with a network NET4, the network NET4 is connected with a master long-distance monitoring station, the master operational console PLC station and the master server are further connected with a network NET1, and the network NET1 is respectively and correspondingly connected with a first PLC control station and a 400H redundancy control station. The drilling machine integrated loop network communication control system based on the PLC achieves automation, intellectualization and networking of the control system, and is good in real-time performance and stable and reliable in communication service.

At present, when the poultry egg embryo grows in an incubator, embryos die in batch during growth due to environment factor mutation because the incubator does not have a monitoring system for the growth process so as to cause huge economic loss. The invention designs a set of measuring system for obtaining the fetal movement signal of a living body poultry egg embryo in the incubation period and provides a new method for measuring the fetal movement of the poultry egg embryo with a semi-intrusion method. On the basis of the flow equation of continuity of flow medium hydraulic transmission, the method utilizes a displacement sensor to extract the fetal movement signal of a living body poultry egg embryo in the incubation period (shown in figure one); under the condition that the poultry egg growth is not affected, the invention realizes the monitoring of the whole process of the poultry egg embryo growth in the incubation period. If the heartbeat signal of the living body embryo weakens or is abnormal in the incubation and growth process, the control system of the incubator immediately checks the incubator and correspondingly adjusts the working parameter so as to realize quick hidden danger and fault treatment to enable the incubator to work normally, thus avoiding serious economic loss. The invention of the monitoring system plays an important role in researching hatching egg growth process, increasing poultry hatching rate, sorting and improving the product quality of poultry egg in the biological pharmacy production and has great development prospect.

The invention discloses a method and a system for determining a gas diffusion range. A gas outflow volume and a Gaussian puff multistage dynamic diffusion integral algorithm are adopted, the synthetic data analysis of conventional physicochemical multiparameters which are obtained through a traditional manual, database or experiment and are associated with natural gas pipeline leakage is used for determining a natural gas puff diffusion range, the problem that the natural gas leakage diffusion range can not be accurately predicted under the state of incomplete data is solved, the emergency control capability of a nation for coping with sudden accidents can be improved, and the method and the system have an important meaning on effectively avoiding heavy economic losses and personal casualties.

The invention discloses a tiny sample stress corrosion experimental device and a tiny sample stress corrosion experimental method. The tiny sample stress corrosion experimental device comprises a stress loading mechanism used for applying loads to a sample, a support used for containing the sample, a corrosion container, a thermostatic water bath and a deflection measuring device used for measuring the deformation of the sample, wherein the support is arranged in the corrosion container, and the thermostatic water bath is used for controlling and adjusting the temperature in the corrosion container. According to the tiny sample stress corrosion experimental device and the tiny sample stress corrosion experimental method, tiny sample constant load experiments in a corrosive environment are implemented, accuracy and effectiveness of the experiments are ensured, the service conditions of equipment in service are learnt in advance through the experiments, and thus heavy economic losses and personal casualties can be prevented.

The invention discloses a system for testing turn-to-turn short circuit of a rotor winding of an automobile turbine generator, which consists of an upper structure and a lower structure in mutual communication connection through Ethernet. The lower structure comprises a magnetic flux detector mounted in a motor and an embedded PC104 data acquisition unit located near a generator, data acquisition is carried out on stimulation signals output by the magnetic flux detector through the data acquisition unit, and the acquired digital signals are transmitted to an upper industrial personal computer through Ethernet; the upper structure of the system comprises an industrial personal computer, a display and a printer, the industrial personal computer controls the data acquisition unit remotely through Ethernet to complete data acquisition and transmission, then analyzes and diagnoses received data, and displays and prints the diagnosis result and acquired waveforms. In the invention, advanced Ethernet communication and embedded PC technology are adopted to realize digital signal-based remote transmission, thus greatly improving the fault diagnosis accuracy and working reliability of the test system on turn-to-turn short circuit of the rotor winding.

The invention relates to a method for improving the nondestructive testing accuracy of a carbon fiber lead. The method comprises the following steps: adding resin and a developing agent in high-carbon fiber, carrying out pull-extrusion molding to form a carbon fiber composite lead core rod, or coating the surface of the lead core rod made of the carbon fiber and the resin by the developing agent, and then performing X-ray nondestructive testing. According to the method, an image can be directly developed, the development effect is good, the storage is convenient, one-time flaw detection during flaw detection can be performed, and convenience and rapidness are realized.

The invention discloses a city early warning management system and method. The system is characterized in that an early warning Internet of things platform, when there is a hidden fire risk in a high-rise building of a city there the platform is disposed, can send position information and the building name of the high-rise building with the hidden fire risk to a vehicle monitoring platform through Internet of things, and the vehicle monitoring platform calculates a linear distance between position information of each monitored vehicle and the position information of the high-rise building with the hidden fire risk, and when it is determined that a target vehicle whose linear distance from the position information of the high-rise building with the hidden fire risk is smaller than a first specified threshold exists, sends internal fault alarm information comprising the position information and the building name of the high-rise building with the hidden fire risk to the target vehicle through the Internet of things, such that the outside world can know the hidden fire risk of the high-rise building timely so as to prevent severe economic loss.

The invention provides an early warning system combining a loudspeaker and Internet of Things and a method. In the system, a fire early warning platform sends the location information and the building name of a high-rise building with fire hazard and the name of streets around the high-rise building with fire hazard to an outdoor loudspeaker monitoring platform through Internet of Things when fire hazard is in the high-rise building in the city of the fire early warning platform; when the outdoor loudspeaker monitoring platform judges a working target loudspeaker device on the street to which the street name belongs, the location information of the high-rise building with fire hazard and fault warning speech in the building name are sent to the target loudspeaker device through Internet of Things; the fire early warning platform deducts a service fee proportional to the number of faults from an electronic account bound to the high-rise building with fire hazard; and the target loudspeaker device outputs the fire early warning speech. The outside world can timely know the fire hazard of the high-rise building to prevent significant economic losses.

The invention discloses a method for controlling valves of adjacent heating areas. The adjacent heating areas comprise a first heating area and a second heating area, wherein a first boiler supplies heat to the first heating area, a second boiler supplies heat to the second heating area, the first control valve is arranged between a water supply pipeline and a water return pipeline of the first boiler, the second control valve is arranged between a water supply pipeline and a water return pipeline of the second boiler, the third control valve is arranged between the water supply pipeline of the first boiler and the water supply pipeline of the second boiler, and the fourth control valve is arranged between the water return pipeline of the first boiler and the water return pipeline of the second boiler. The method for controlling the valves of the adjacent heating areas has the advantages that the structure is simple, operation is convenient, and the phenomenon that stopping of heat supply is caused by boiler faults is avoided. Besides, the phenomenon that heavy economic losses are caused by frost cracking of the water supply pipelines, the water return pipelines and a heating radiator when the boilers break down is avoided. Therefore, the method for controlling the valves of the adjacent heating areas brings great convenience to life and work of people in the heating areas.

The invention relates to the technical field of fruit tree disease treatment, in particular to a medicine for treating the yellow shoot disease to bear good fruits and a preparation method and use method thereof. The medicine comprises in percent by weight: 80%-86% of a component 1 and 12%-25% of a component 2; the component 1 comprises a beta-lactam antibiotic used for resisting gram negative bacteria; and the component 2 comprises a filler. According to the medicine for treating the yellow shoot disease to bear good fruits, the beta-lactam antibiotic penetrates through gram negative bacteriato inhibit the proliferation of the bacteria, so that the phloem inside the yellow shoot disease fruit trees is inhibited and killed, the sieve tube cells of the fruit trees are unblocked, and the nutrients and water of fruit trees can be normally supplied to the branches to bear good fruits. The medicine for treating the yellow shoot disease to bear good fruits has good effects on yellow shoot disease fruit trees, gram negative bacteria can be effectively inhibited and killed, and thus trees infected with the yellow shoot disease can be treated, the trees can bear good fruits, and major economic losses caused by digging or cutting down the disease trees are avoided.

A dynamic assessment and forecasting method of local government debt risk includes the following steps: (1) Analyzing the local government debt risk system structure and causality, including social and economic subsystem, local government debt scale subsystem, local government debt risk measurement subsystem. (2) using Vensim PLE software to construct the local government debt risk system. including: 1, constructing system stock flow chart; 2, defining the functional relationship of variables. (3) simulating and measuring the risk of local government debt and testing the risk sensitive factors, including: 1, selecting local government; 2, collecting and processing the data related to relevant evaluation indexes; 3, performing parameter estimation and variable equation design; 4, model checking and simulation. 5, performing sensitivity test of risk factors. The invention tracks and feeds back the local government debt risk status in time, grasps the debt risk distribution and the change status from the scale and the structure, and provides a tool for the government to control the debt risk.

An electrical fire early warning system applied to a city and a method thereof are disclosed. The system is characterized in that when an electrical fire early warning platform discovers that a fire risk existing in a high-rise building of a city where the electrical fire early warning platform is located, position information and a building name of the high-rise building where the fire risk exists, and names of streets surrounding the high-rise building where the fire risk exists are sent to a vehicle monitoring platform through Internet of things; when the vehicle monitoring platform determines that a target vehicle exists in a street which the street names belong to, disaster early warning information containing the position information of the high-rise building where the fire risk exists and the building name is sent to the target vehicle through the Internet of things. In an embodiment of the invention, the outside world can timely know the high-rise building where the fire risk exists so that great economic losses are prevented.

The invention belongs to the technical field of traffic information acquisition and relates to a traffic information acquisition device capable of protecting a camera. According to the device, the height and angle can be conveniently adjusted, the information acquisition range is expanded, the adaptability of information acquisition is ensured, meanwhile, the device can play a good damping and buffering effect on the camera during normal use, the detection accuracy and clearness are ensured, and the camera can be quickly retracted into a protection box to be protected when the conditions such as collision or strong wind occur.

The invention relates to the technical field of offshore new energy, and discloses an offshore new energy meteorological guarantee and service system, which comprises a data fusion and service platform, an offshore new energy meteorological guarantee platform, an offshore new energy meteorological service platform and an offshore new energy meteorological service WeChat official account module. According to the offshore new energy meteorological guarantee and service system, when a disastrous weather system such as typhoon transit, heavy rainfall and the like approaches, the system is closed,the platform timely issues early warning information, avoids significant economic losses, and the disaster prevention and reduction capability of the wind power plant is improved. The safety of constructors and equipment is ensured. In daily operation and maintenance processes, a user can customize his / her hydrological and meteorological element forecasting and early warning product through the platform. Wind speed forecasting products of all height layers of the wind power plant at the level of 15 minutes one by one in the future 24 hours can be known through the platform, and the wind poweris forecasted and forecasted by combining an open and high-coupling platform data interface with a wind power forecasting model.

A method for preventing and controlling maize pests and diseases comprises following steps: 1. fine land preparation and killing overwintering diseases and pests sources; 2. scientific fertilization; 3. complete covering or half covering with mulching film and early sowing in suitable period; 4. during the maize trumpet period, well mixing 5kg to 8kg washed river sand having a diameter of 2mm to 3mm, 8 to 10ml 20% fenvalerate, and 50g 50% carbendazim WP to prepare a granular formulation, applying 60 to 75 kg granular formulation per mu to the centers of maize heart leaves and space among 4 to 5 leaves forming heart leaf clusters, and avoiding applying chemical during condensation of moisture and leaf rolling; applying 50% carbendazim WP 1000 times solution 15 to 18 days before maize harvesting. The method for preventing and controlling maize pests and diseases of the invention adopts comprehensive prevention technology to prevent and control main pests and diseases of maize and avoids heavy economic losses of production, guarantees the sustainable development of maize industry and promotes harmony and stability of rural areas.

The invention discloses an anti-inclination pole and tower. The anti-inclination pole and tower comprises a base, an anti-inclination assembly is arranged at the bottom of the base, a plurality of second fixing frames are arranged on the upper end face of the base, the second fixing frames are connected with third installing frames through first installing bolts, pole bodies are connected to the third installing frames, a plurality of stringing assemblies are linearly arranged at the positions, close to the tops, of the circumferential faces of the rod bodies in the vertical direction, a control box is arranged at the tops of the rod bodies, two installing rods are symmetrically arranged on the circumferential face of the control box, and the end parts of the installing rods are connectedwith first installing frames. According to the anti-inclination pole and tower, multiple anti-inclination plates connected to the outer edge of the bottom of the base are used for conveniently preventing the pole body from inclining when soil in a certain direction around the base settles, the stability of the anti-inclination plates is conveniently improved through multiple embedded ribs arrangedon the outer edges of the anti-inclination plates in an outward protruding mode, the pole and tower can be conveniently fixed to the deeper underground position through fixing anchor rods at the bottoms of the anti-inclination plates, and the stability of the pole and tower is improved.

The invention discloses a pressure monitoring and relieving device for a closed oil well. The pressure monitoring and relieving device for the closed oil well comprises an upper connecting pipe, a lower connecting pipe, a gate valve, a bolt, a close cover bolt and a connecting cover, the upper end of a substrate is connected with the upper connecting pipe, the lower end is connected with the lower connecting pipe, one side end is connected with a GSM pressure warning device while the other side end is connected with the gate valve, the gate valve is connected with a gate valve close cover, and the upper connecting pipe is connected with a single-hole exhaust valve. The liquid surface in an oil pipe ascends due to water injection, fracture, geological movement and the like formation pressure change of the closed oil well, the gas is discharged through an automatic exhaust valve, when the liquid ascends to the well mouth, the automatic exhaust valve is closed, when the pressure rises to 2 Mpa, the pressure warner works, the GSM warner sends out buzzing for three minutes, a built-in GSM card sends five short messages to a fixed mobile phone number to give an alarm, a manager goes to the site to connect pipelines and open the gate valve to lower the pressure in the oil well after receiving the short messages, and then the manager disassembles the automatic exhaust valve and uses an oil extraction vehicle to extract the liquid; the pollution is avoided, and the hidden danger is lowered; the pressure monitoring and relieving device for the closed oil well is simple in structure, convenient to manufacture and low in cost.

The invention relates to the field of photovoltaic power generation, and especially relates to a control system of a photovoltaic energy storage inverter. The system comprises a booster circuit, a capacitor C1, a first voltage bi-directional regulation circuit, a capacitor C2 and a charge / discharge control circuit, wherein the charge / discharge control circuit is connected with a lithium battery, and the output end of the capacitor C1 is also connected with a detection control circuit and an inverter circuit. The detection control circuit is respectively connected with a first voltage bi-directional regulation circuit, a lithium battery and a charge / discharge control circuit, and is used for detecting the voltage at the lithium battery terminal and controlling the first voltage bi-directional regulation circuit and the charge / discharge control circuit to charge or discharge the lithium battery according to the detection result. The output end of the inverter circuit is connected to a power network. By using the invention, the following effects can be realized: when the voltage of the lithium battery may be lower than the normal working voltage, the lithium battery is forcibly charged, thereby avoiding the damage of the lithium battery caused by the deep discharge deficit of the lithium battery and causing the heavy economic loss.

The invention provides a power distribution station monitoring system. The power distribution station monitoring system comprises a digital camera, an image difference extraction unit, a transmission unit, an image processing unit and a monitoring system platform. The image difference extraction unit receives each frame of images of video pictures monitored by the camera, analyzes differences between two frames of images in a preset time range and outputs difference part data of image groups where differences exist. The transmission unit receives the starting point of the preset time range where the image groups with the differences are located and the first frame of images outputted by the digital camera, and meanwhile receives difference part data of different groups of image where the differences exist and outputted from the image difference extraction unit, and outputs the difference part data and the first frame of images. The image processing unit receives the first frame of images and the difference part data outputted from the transmission unit and reduces the video pictures frame by frame according to the first frame of images and the difference part data in the preset time range. The monitoring system platform is connected with the image processing unit, receives each frame of images sent by the image processing unit and continuously displays the each frame of images.

The invention discloses a wireless cable chute cable joint running state monitoring device comprising a sensor unit, a single chip microcomputer unit, a wireless communication unit, a fire extinguisher unit and an online energy acquiring unit; the sensor unit is used for collecting temperature and humidity signals, electromagnetic field distribution signals, ultraviolet flame signals and smoke signals around a cable joint, and transmitting the signals to the single chip microcomputer unit; the single chip microcomputer is applied to ADC data collection, sensor signal operation treatment, switch signal output and wireless communication unit data exchange; the fire extinguisher unit is used for receiving the switch signals of the single chip microcomputer unit for working; and the online energy acquiring unit is used for providing working power for all the abovementioned units. The wireless cable chute cable joint running state monitoring device provided by the invention has the advantages that the cable chute with fault warning is overhauled in advance through monitoring the working condition of the cable chute cable joint in real time; meanwhile, extinguishment is automatically started when there is a fire, the cable is prevented form being damaged, and the relatively serious results such as override trip are avoided.

The invention discloses a burning explosion prevention method and system for an oxygen compressor. The method comprises the steps that the temperature of oxygen in the oxygen compressor is measured; the measured temperature is compared with preset temperature; and if the measured temperature is equal to or higher than the preset temperature, a medium is introduced into the oxygen compressor and used for diluting the oxygen in the oxygen compressor and / or reacting with the oxygen in the oxygen compressor. The aim of burning explosion prevention is achieved. The personal safety of workers is protected, and heavy economic losses are avoided.

The invention discloses a city canopy and a control method thereof. The city canopy comprises a truss, a curtain, a curtain retraction device, a sensor and an electrical control device. The sensor isarranged on the truss. The sensor is used for detecting the pressure of the truss and generating a pressure value signal. The electrical control device is electrically connected with the sensor. The electrical control device is used to receive the pressure value signal sent by the sensor. If the pressure value signal is greater than a preset pressure value, the curtain retraction device is controlled to retracting the curtain. According to the city canopy and the control method thereof, the electrical control device is used to receive the pressure value signal sent by the sensor in real time and comparing the pressure value signal with the preset pressure value; if the pressure value signal is greater than the preset pressure value, the electrical control device sends out a curtain retracting command and controls the curtain retraction device to retract the curtain; the stress of the truss is reduced; accidents are effectively prevented; and significant economic losses are avoided.

The invention is applied to the field of computer application and provides a multichip compatible method and a multichip compatible device based on capacitive touch press keys as well as electrical equipment. The method comprises the steps that triggering commands are detected at regular time; data are obtained after the triggering commands are detected; whether the data are a secret key or not is verified; if so, a plurality of key values are read and written; is not, whether the data are the key value or not is judged; if the data are the key value, press key instructions corresponding to the key value are executed; and if the data are not the key value, the operation returns to execute the step of detecting the triggering commands at regular time. The method, the device and the electrical equipment have the advantages that according to the promissory software protocol requirement, corresponding codes are written into an MCU (microprogrammed control unit) of the electrical equipment and a touch press key module, the MCU of the electrical equipment can automatically obtain the code values of each corresponding press key and store the code values into the corresponding region, so the code values of each press key of the capacitive touch press key module can be recognized, the module is compatible, the change of a software drive is not needed, and the problem of being compatible with different touch press key chips by electrical equipment adopting uneasy-to-change software is effectively solved.

The invention relates to the technical field of cable fire-fighting equipment, and discloses a cable trench cable fire alarm and automatic fire extinguishing device. The device comprises a cable trench, wherein the cable trench is arranged on the ground in a front and back manner. According to the cable trench cable fire alarm and automatic fire extinguishing device, fire extinguishment is automatically started in time when a fire occurs in the cable trench, cable is prevented from being damaged, the range of power failure caused by accidents is narrowed down, and serious consequences such asoverride trip are prevented; a buzzer is arranged, a probe signal receiving device senses signals sent by a smoke sensing and temperature measuring probe and then is electrically connected with the buzzer, an alarm can be given out in time when a power cable is on fire, maintenance personnel can be informed in time to carry out maintenance on the cable, heavy economic losses are avoided, and furthermore, normal electricity utilization of common users and enterprises is indirectly guaranteed; and a sliding rail, a first gear and a threaded rod are arranged, so that a fire extinguishing box canreach any place in the cable trench, and fire extinguishment with dry powder can be conducted on any place in time.

The invention provides a crushing repair method for a compensation straight line of a main pole of a DC motor, which comprises the following steps: firstly, welding compensation straight line drawing lifting lugs; then carrying out flame heating to take a main pole slot wedge; carrying out flame heating and traveling drawing to take the compensation straight line; carrying out shaping and slot cleaning on a main pole punching sheet; and finally, installing the newly manufactured straight line. The application of the crushing repair method can avoid scrapping of an iron core of the main pole, greatly reduce the crushing repair cost and shorten the repair time. According to the invention, a compensation straight line insulation carbonization technology, a compensation straight line integrated taking technology and the like are adopted to greatly improve the crushing repair speed and reduce the crushing repair cost.