79results about How to "Timely repair and maintenance" patented technology

The invention provides an intelligent pluggable circuit breaker and a monitoring and pre-warning system of the intelligent pluggable circuit breaker. The monitoring and pre-warning system is composed of the pluggable circuit breaker, a monitoring and pre-warning device, a portable terminal and a monitoring central server. The monitoring and pre-warning device comprises a measurement and control module, a temperature collection module, a voltage and current collection module, a communication module, a display module and an audible and visual alarm module. Pre-warning is achieved by measuring the temperature of all contacts in real time, measuring and calculating various electric parameters and comprehensively analyzing and judging the working state especially the unhealthy or abnormal state of the pluggable circuit breaker. In addition, the temperature warning function and the temperature protection function are achieved. The pluggable circuit and the monitoring and pre-warning device are highly integrated, the structure is simple, installation is convenient, safety and reliability are achieved, the intelligent running of the pluggable break circuit is achieved, the real-time running monitoring and production management of the field are facilitated, the low cost, production and refitting can be easily achieved, the fault rate and the damage rate of devices are effectively decreased, and the power supply reliability is improved.

The embodiment of the invention discloses a household electrical appliance fault processing method and device. The method comprises the steps of determining fault types of network household electrical appliances according to fault information packets when the fault information packets uploaded by the network household electrical appliances are received; determining repair objects corresponding to the fault types according to the fault types of the network household electrical appliances, wherein the repair objects comprise a household user terminal or manufacturer after sale servers of the network household electrical appliances; and sending the fault information packets to the repair objects. According to the embodiment of the invention, fault processing modes can be determined timely according to specific household electrical appliance fault types, thereby improving the household electrical appliance fault processing efficiency and improving the user experience.

The invention discloses a method for monitoring the performance of a photovoltaic power station in real time. The method comprises the steps of: (1) collecting voltage V1 and current I1 of direct current outputted by a photovoltaic array in the photovoltaic power station, and calculating direct current power P1 by using the voltage V1 and the current I1; (2) collecting voltage V11 and current I11 of alternating current formed by the direct current outputted by the photovoltaic array after being inverted, and calculating alternating current power P11 by using the voltage V11 and the current I11; (3) acquiring a photovoltaic assembly with the same specifications as the formed photovoltaic array, collecting voltage V0 and current I0 of direct current outputted by the photovoltaic assembly, and calculating direct current power P0 by using the voltage V0 and the current I0; (4) collecting voltage V01 and current I01 of alternating current formed by the direct current outputted by the photovoltaic assembly after being inverted, and calculating alternating current power P01 by using the voltage V01 and the current I01; and (5) judging whether the performance of the photovoltaic array is normal or not according to the collected or calculated relevant data of the photovoltaic array and the photovoltaic assembly in steps (1)-(4). The method disclosed by the invention is conducive to operation management of the performance of the photovoltaic power station.

The invention discloses a skin-like anti-water-seepage warning type exterior wall, and belongs to the field of external wall waterproofing. According to the skin-like anti-water-seepage warning type exterior wall, through the arrangement of an air bulge warning lining, when the water seepage situation of the exterior wall occurs, due to the arrangement of a multi-point water diversion rod and water diversion fluffs and the hydroscopicity of the multi-point water diversion rod and the water diversion fluffs, the spreading speed of water on the multi-point water diversion rod and the water diversion fluffs is faster than the spreading speed between concrete of the exterior wall, and early warning scattered points can be in contact with the water before the water seeps into the middle of thewall, so that gas is generated in time, and enters self-bulging lamination, and bulges appear on the self-bulging lamination as if the skin is bitten by mosquitoes, so as to remind residents the waterseepage situation of the external wall in time, and to facilitate timely maintenance and repair; compared with the prior art, an early warning reaction can be generated in advance, so that the safetyhazards and economic losses caused by the water seepage of the external wall are effectively reduced.

The invention relates to a digital coiled tubing injection head. The digital coiled tubing injection head comprises a box body, hydraulic motors, a clamping block, a transition frame, and an adjustingmember, the two hydraulic motors are erected on one side of the box body, chain wheels are rotatably connected to the hydraulic motors, the clamping block is connected outside the chain wheels in a sleeving mode through a link chain, the transition frame is erected on one side of the top of the box body, the adjustment member is erected in the middle of the ring-shaped link chain, wherein the adjustment member comprises a threaded rod and a positioning pad, a support frame is fixedly connected into the box body, the threaded rod is connected to the support frame in a threaded mode, the positioning pad is rotatably connected to one end of the threaded rod, the end surface of the positioning pad is fixedly connected with a limiting plate, and the limiting plate abuts against the clamping block, so that the clamping block abuts against a coiled tubing; a pressure sensor is fixedly connected in the positioning pad, the pressure sensor abuts against the limiting plate, and the pressure sensor is electrically connected with a data terminal outside the box body. The digital coiled tubing injection head has the advantages that the working condition of an injection head is accurately judged and the injection head is ensured to be capable of working efficiently and stably.

The invention relates to the technical field of belt conveyor maintenance and management, in particular to a video-based belt running state detection method. Comprising the steps of arranging a camera module, a sensor and a computer assembly; building a system architecture and constructing a detection system; the belt conveying device is monitored in real time; detecting and identifying the equipment operation state and the abnormal fault condition of the belt conveying device based on the video data; judging the operation state, and scoring the influence degree of the abnormal condition on the operation safety performance of the equipment; setting a safety protection mechanism, executing safety protection measures when an abnormal condition occurs, outputting an alarm signal, and carrying out maintenance scheduling. According to the design, the operation state of the belt conveying device is detected and identified in real time on the basis of a monitoring video; the influence degree of abnormal conditions is evaluated, the running state of the belt conveyor is accurately evaluated, the detection efficiency is improved, and negligence, mistakes and omissions are reduced; production potential safety hazards can be effectively reduced, waste is reduced, and safe operation of production is guaranteed.

The invention discloses an excavator control system with an automatic early warning function. The excavator control system comprises intelligent mechanical equipment and a mobile terminal which are in both-way electric connection with each other, wherein the intelligent mechanical equipment comprises a controller; the input end of the controller is electrically connected with the output ends of a first feedback module, an amplifier and a parameter setting module; and the output end of the controller is electrically connected with the input end of a data acquisition module. The excavator control system has the advantages that through the connection between a wireless signal receiving-transmitting module I and a wireless signal receiving-transmitting module II, information detected by a sensor group can be transferred to the mobile terminal; an alarm is given by an alarming device II; a relay can be controlled by operating personnel through a switch module, and then an excavator is powered off and stops working; and the maintenance can be carried out timely. Therefore, the excavator control system can assist the operating personnel in quickly knowing the fault condition of the unmanned excavator, thereby avoiding the occurrence of a greater loss.

The invention discloses a magnetic powder detection device for detecting metal cracks. The device comprises a machine body and a buffer mechanism; the top of the front end of the machine body is fixedly connected with a groove body; a hydraulic telescopic rod is fixedly connected to the top end of the interior of the machine body; an end part of the hydraulic telescopic rod is fixedly connected with a fixed frame; the fixed frame is mounted at the top end of the groove body; a guide plate is fixedly connected to the interior of the machine body; an end part of the guide plate is installed at the top of the inner end of the groove body, and a storage groove is formed in the surface of the outer side of the guide plate; the buffer mechanism comprises a limiting plate, and the limiting plateis installed in the storage groove; a rotating shaft is fixedly connected to the limiting plate and the inner wall of the bottom of the storage groove, and the rotating shaft is installed in the top end of the storage groove. Through the designed limiting plate which makes contact with the workpiece in the falling process, the limiting plate is prevented from linearly impacting the workpiece underthe action of a rotating shaft and a torsional spring, and the workpiece is more stable and safer in the falling process.

The invention relates to a computer room wireless monitoring method and system, a handheld device and a computer room device. The handheld device is provided with a first NFC chip. The computer room equipment is provided with a second NFC chip. When the handheld device with the first NFC chip moves within a permitted communication range of the computer room device with the second NFC chip, the handheld device establishes non-contact short-range wireless communication connection with the computer room device, and obtains monitoring information of the computer room device based on the non-contact short-range wireless communication connection. According to the invention, the NFC technology is introduced into the computer room monitoring system, so that on-site maintenance personnel can get to know the operation of the computer room device at best times, conduct timely repair and maintenance, and avoid time delay and larger loss; and in addition, monitoring data can be timely collected in a wireless, portable and short-range manner, the convenience of the computer room monitoring is improved, and the working efficiency of the maintenance personnel is also greatly improved.

The invention relates to a deep-learning-based high-voltage transmission line galloping early-warning system. The system is composed of a power supply system module, an infrared camera module, and a 4G network transmission module. With a deep convolution neural network method, direct contact with a transmission line during installation can be avoided and all transmission line galloping monitoring problems under the same algorithm frame can be solved. The system is capable of realizing an early warning effect; the line maintenance staff can be informed in advance before power supply fault occurrence and thus can carry out maintenance rapidly, so that the power supply accident can be avoided.

The invention discloses a water leakage alarm full-automatic opening and closing gate. The water leakage alarm full-automatic opening and closing gate comprises a gate frame, wherein the gate is arranged in the gate frame; a top plate is arranged at the top position of the gate frame; a through hole is formed in the middle position of the top plate; a winding drum machine is arranged at the middleposition of the top plate and is fixed to the top plate through a fixing frame; a steel wire rope is arranged on the winding drum machine and is connected with the gate; an opening and closing motorfor driving the winding drum machine to rotate is arranged at the left position on the top plate and is fixed to the top plate through a motor seat at the bottom of the opening and closing motor; a wide-angle monitor is arranged at the middle position of the top plate; flow meters are separately arranged at the left side and right side, close to the bottom, of the gate frame; and the wide-angle monitor, the flow meters and the opening and closing motor are separately connected with a CPU in a computer. According to the water leakage alarm full-automatic opening and closing gate, when the gateis closed, the wide-angle monitor on the gate frame detects a closed state of the gate and a condition of a drain slope at all times, and when the gate is not tightly sealed and water leakage occurs,personnel can find the water leakage through the wide-angle monitor and then repair the leakage in time.

The invention relates to the technical field of water hammer protection air valves, and discloses a water hammer protection air valve with a monitoring system. The water hammer protection air valve comprises a valve body and a valve cover, and a high-speed exhaust throttle device and a high-speed intake and exhaust device are arranged inside. The water hammer protection air valve is provided witha monitoring system. The monitoring system comprises a power source, a power control module, a micro switch, a plurality of sensors, a communication module and a central control module. Through the arrangement of an air valve monitoring device, the air valve on a pipeline or pipe network can be remotely monitored by the central control station in terms of different working states such as exhaust,suction, sealing, fault, etc. If a fault occurs, the position of the faulty air valve is displayed at the central control station and an alarm is issued, so that a manager can perform maintenance andrepair timely, the amount of labor of the manual line inspection is saved, the service life of the air valve is prolonged, the occurrence of malignant accidents such as water hammer of the pipe network, pipe burst and pipe collapse, and smart water management is favorably enhanced.

The invention discloses an interface display method, terminal equipment and a computer readable storage medium. The interface display method comprises the steps: obtaining the image information acquired by an image photographing device; judging whether the preset image information associated with the household electrical appliance in advance exists in the image information and displaying the augmented reality display interface of the household electrical appliance when the preset image information exists; and displaying at least one component information corresponding to the household electrical appliance in the augmented reality display interface. The problem that the user can not have an intuitive understanding of the structure of the household electrical appliance equipment can be solved, the user can quickly understand the internal structure of the household electrical appliance equipment, the user can carry out simple maintenance on the household electrical appliance equipment byhimself and the user can carry out preliminary diagnosis when the household electrical appliance equipment fails and thus rapid warranty of the household electrical appliance equipment can be facilitated.

The present invention discloses a water seepage fault detection method and device of a steel structure building and a wallboard junction box. The method comprises a detection step, a judgment step and an execution step. In the detection step, the water seepage parameters in the junction box and/or a junction box and structural plate wall joint are detected. In the judgment step, according to the detected water seepage parameters, whether a seepage fault appears or not is judged, the method returns to the detection step when the seepage fault does not appear, and the method goes to the execution step when the seepage fault appears. In the execution step, after the command of the judgment step is received, an early warning signal is emitted. In the process of use, when the water seepage fault of a junction box position is judged through the judgment step, the early warning signal can be timely emitted, thus corresponding measures can be timely adopted when the junction box has the water seepage fault, a user is reminded to carry out repair and maintenance timely, a fire risk is avoided, and the home safety is improved.

The invention discloses a standard gas generation system and a method for dynamically monitoring standard gas, wherein the standard gas generation system comprises a standard gas generator, a first exhaust branch circuit, a second exhaust branch circuit, a gas sensor, a processor and a prompt device, the first and the second exhaust branch circuits are connected with an exhaust port of the standard gas generator, the gas sensor is connected with the first exhaust branch circuit and can measure the calibration of exhaust gas, and the processor can obtain a gas concentration initial value, a gas concentration measured value of the gas sensor, and compares the gas concentration initial value and the gas concentration measured value. When a difference value of the gas concentration initial value and the gas concentration measured value exceeds a preset threshold, the prompt device outputs promote information. The standard gas generation system can guarantee accuracy and stability of the standard gas generator.

The invention discloses a method and a device for predicting the life of a mechanical component of an electric drive assembly. By collecting historical data and current characteristic parameter data of the mechanical component of the electric drive assembly, the modeling of a screening model and a life prediction model is completed, whether the mechanical component is in a failed state is judged according to the characteristic parameter data and the screening model, if the mechanical component is in the failed state, alarm information is sent in time to remind the staff to repair and replace the mechanical component, if the mechanical component is in a non-failed state, the remaining life of the mechanical component is accurately predicted via the life prediction model, the mechanical component which is about to be failed is monitored and detected in time, the working efficiency is improved, and the failure delay time of the mechanical component is shortened.

The invention discloses an LED display screen power supply control circuit and a control method thereof. The LED display screen power supply control circuit comprises a central processing unit, a power supply management module, a power supply assembly, an LED driving module, LED fault detection modules and an LED display screen assembly, wherein the power supply assembly is separately connected with the central processing unit, the LED display screen assembly and the power supply management module through wires. According to the invention, the LED driving module is controlled through the central processing unit; the running state of an LED display screen unit can be independently controlled through each LED driving unit; the picture display of each independent component of the LED displayscreen assembly is effectively realized such that a plurality of pictures can be displayed at the same time and abundant display content is achieved; the LED display unit and a power supply unit whichare associated with each other can be timely monitored in real time through the power supply management module and each LED fault detection unit, and the associated abnormal LED driving unit, LED display screen unit and power supply unit are disconnected, so that the normal operation of other parts is not influenced.

The invention discloses a mixed sealing type top-mounted low-temperature ball valve, and belongs to the field of ball valves. According to the mixed sealing type top-mounted low-temperature ball valve, gas enters the interior of an elastic air bag through a first through hole and a second through hole, so that the elastic air bag is continuously expanded, the expanded elastic air bag continuously pushes a thorn cone to press downwards, thereby compressing an aqueous solution storage balloon and a quicklime storage balloon; an inner cavity of the elastic air bag is continuously filled with gas, so that the elastic air bag is continuously expanded, and finally, the water solution storage balloon and the quick lime storage balloon are crushed by the thorn cone one by one, so that the water solution and the quick lime fully react in an inner cavity of a reaction cavity, and a deformation memory metal ring deforms due to the heat, and the deformed deformation memory metal ring is matched with a valve rod to extrude a rubber filler, so that the sealing performance of the joint of the valve rod and the rubber filler is improved, gas leakage can be temporarily prevented in time, and sufficient time is provided for personnel maintenance.

The invention discloses a nondestructive recognition method for a bridge damage position, a storage medium and equipment, and belongs to the technical field of bridge engineering health monitoring. In order to solve the problem that the damage position of the bridge structure cannot be simply and conveniently identified by the existing detection technology, the damage position is determined based on an unscented Kalman filter algorithm and a self-adaptive unscented Kalman filter algorithm, a sensitive parameter corresponding to each step needs to be calculated in the filtering process, and the sensitive parameter eta < k > is calculated according to a time history curve of the sensitive parameter eta < k >. Selecting a filter algorithm of the next time step, forming a new diagonal matrix according to all main diagonal elements of the state quantity covariance when the adaptive unscented Kalman filter algorithm is executed, and sequentially expanding a covariance value corresponding to each elastic modulus parameter of the matrix, a step of complete unscented Kalman filtering operation is executed, a sensitive parameter eta k is obtained, and a damage position is found; and expanding the covariance corresponding to the position and continuing to execute the (k + 1) th time step until all cycles are finished to obtain all damage positions.

The invention relates to an outbound test method and device, computer equipment and a computer readable storage medium. The method comprises the following steps: acquiring an outbound test task for a target outbound scene, wherein the outbound test task comprises configuration information; according to the configuration information, obtaining a test sample corresponding to the outbound test task, wherein the test sample corresponds to at least one outbound node in the automatic outbound process of the target outbound scene, and the test sample comprises a sample test statement and a sample reply corresponding to the sample test statement; and based on the sample test statement, obtaining a target reply for the sample test statement fed back by the outbound component, and comparing the sample reply with the target reply to obtain an outbound test result, the outbound test result being used for representing whether the automatic outbound process of the target outbound scene is normal or not. By adopting the method, whether the automatic outbound process in the automatic outbound process is normal or not can be effectively detected.

The invention relates to a boulder apron energy dissipating and scour preventing structure and a construction method thereof, aiming at providing the boulder apron energy dissipating and scour preventing structure and the construction method thereof, protecting a riverbed from being scoured and achieving the aim of preventing scour. The invention adopts the technical scheme that the boulder apron energy dissipating and scour preventing structure comprises a concrete gate dam built on a gate dam foundation, wherein a concrete apron is cast at the downstream side of the gate dam. The boulder apron energy dissipating and scour preventing structure is characterized in that a first-stage boulder apron and a second-stage boulder apron are sequentially paved at the downstream side of the concrete apron along the direction of a water current; a bottom-layer boulder in the first-stage boulder apron is uniformly divided into three parts, a top-layer boulder is uniformly divided into four parts, and all parts are arranged in parallel along the width direction of a river channel; and the second-stage boulder apron is uniformly divided into three parts which are arranged in parallel along the width direction of the river channel. The boulder apron energy dissipating and scour preventing structure and the construction method thereof disclosed by the invention are suitable for water conservancy and hydropower pivotal projects, particularly for the low-head water conservancy and hydropower pivotal projects in mountain areas.