43results about How to "Monitoring failure" patented technology

A simulation testing method for partition application software of an embedded system comprises five steps: step one, building a testing model; step two, generating testing configuration information and a virtual partition code according to the testing model; step three, writing a testing script, and writing a response action for an allocated event occurring during the testing process; step four, performing testing on a partition application to be tested; and step five, collecting and analyzing the testing data. The simulation testing method for the partition application software of the embedded system can be implemented in a development and integration test phase of a partition embedded software applicationand can test or verify the execution sequence, the scheduling performance and the interface communication function of the partition embedded software application. The technical scheme of the simulation testing method for the partition application software of the embedded system comprises the steps of utilizing a calculation and storage unit of a core operating system, simulating the dynamic behaviors of other partition applications on line through a virtual partition mode, and exerting testing actuation to the application to be tested and receiving response. The simulation testing method for the partition application software of the embedded system has a broad application prospect in the technical field of software testing.

The invention provides an oil level monitoring method of an oil storage system of an oil-immersed transformer. The oil level monitoring method comprises the following steps that first, a pressure sensor is mounted on the oil-immersed transformer for collecting pressure signals to calculate the average temperature of transformer oil; second, the expanding volume of the transformer oil is calculated according to the average temperature of the transformer oil; third, the oil level of the oil storage system is calculated according to the expanding volume of the transformer oil and the shape of the oil storage system of the oil-immersed transformer to obtain corresponding oil level signals; when the oil level or oil pressure exceeds a set safety value, a monitoring terminal sends out alarm signals. The invention further provides an oil level monitoring system based on the oil level monitoring method. The oil level monitoring system comprises the pressure sensor arranged on the transformer and the monitoring terminal connected with the output end of the pressure sensor. The monitoring terminal is used for converting the pressure signals collected by the pressure sensor into oil level signals and meanwhile monitoring the oil level signals and the pressure signals. When the oil level signals or the pressure signals exceed the safety value, the monitoring terminal sends out an alarm.

The present invention discloses a water purifying drinking machine system, a water purifying drinking machine and a server. The water purifying drinking machine system comprises the water purifying drinking machine, a user terminal, an agent terminal and a server. The water purifying drinking machine is used for closing the water supply service to a user by the water purifying drinking machine after receiving the close command sent by the server and reminding the user when a recharge reminding message is received. The server communicates with the water purifying drinking machine mutually and is used for monitoring the operation state and the leasing state of the water purifying drinking machine, when the server monitors the abnormal operation state of the water purifying drinking machine, the server generates a maintenance notification and pushes the maintenance notification to the agent terminal, when the condition that the leasing state is close to a leasing time limit is monitored, the recharge reminding message is generated and is pushed to the water purifying drinking machine and the user terminal, and the close command is sent to the water purifying drinking machine when the leasing time limit arrives. According to the water purifying drinking machine system of the embodiment of the present invention, the convenience of using the water purifying drinking machine by the user can be improved.

The invention relates to traffic monitoring and analyzing method for user side network equipment; the method includes that: an equipment network administration protocol character string is added to user network equipment; router rapid switching buffer mechanism is enabled on port of the network equipment; network nodes are added to a traffic analyzing server according to IP address of the network equipment; then three-way handshake protocol is performed through preset UDP port and authentication key; when the three-way handshake is successful, the traffic analyzing server creates a session with the monitored client to start scanning the port of the monitored client; router interface traffic is regularly stored in a database; the traffic analyzing server scans the client once at time interval of T1 and stores traffic once at the time interval of T2; an internet information service website is established; the monitoring of user network equipment traffic and the traffic protocol analyzing result are obtained through a general browser. The invention has the advantages that users can monitor the equipments completely and detect the fault of router earlier.

The invention discloses a film magazine monitoring system comprising a light source emitter, a light source receiver and a processor. The light source emitter is fixed on a mechanical hand and used for emitting light rays, which are parallel to the surface of the mechanical hand, to the other side of a loading platform. The light source receiver is arranged on the other side of the loading platform and used for receiving the light rays emitted by the light source emitter and outputting thickness of an area, which is blocked by a wafer, of the light rays emitted by the light source emitter, central point height of the area, which is blocked by the wafer, of the light rays emitted by the light source emitter, and height of one side point of the area, which is blocked by the wafer, of the light rays emitted by the light source emitter. The processor is used for outputting an alarm signal indicating forward and backward inclination or leftward and rightward inclination according to the thickness of the area blocked by the wafer, the central point height of the area blocked by the wafer, and the height of one side point of the area blocked by the wafer. The film magazine inclination state can be accurately monitored by the film magazine monitoring system.

The invention discloses a safety monitor comprising a single chip microcomputer, a gravity sensor, three-phase input voltage and a relay, wherein the three-phase input voltage is accessed into the single chip microcomputer through a filter circuit; the gravity sensor is accessed into the single chip microcomputer through an amplification circuit and the filter circuit; and the single chip microcomputer controls the action of the relay. The single chip microcomputer is used for detecting whether the three-phase input voltage is lack of phase; and the safety monitor displays a failure cause when the three-phase input voltage is lack of phase. The safety monitor is used for managing and protecting a crane, adjusting the use of the crane and preventing the crane from operating when a potential hazard condition is probably caused. The safety monitor can realize overload protection on the crane, monitor the operation of the crane, failures, phase sequence of a main power supply, phase lacking of the main power supply as well as control the voltage, achieve low-speed starting and low-speed stopping functions, record operation time, and implement relay output and tonnage display.

The invention relates to a transformer substation auxiliary control system, method and device. The system comprises a first-area system, a second-area system and a third-area system, wherein the first-area system comprises a primary equipment monitoring device, the second-area system comprises an online monitoring device; the third-area system comprises a transformer substation centralized controldevice, a transformer substation external monitoring device and a robot inspection device. The primary equipment monitoring device, the online monitoring device, the transformer substation external monitoring device and the robot inspection device are respectively connected with the transformer substation centralized control device through buses. Corresponding data of a transformer substation arecollected; all the collected data are analyzed to obtain preliminary fault information, and the fault of the transformer substation is monitored more comprehensively and more efficiently. Further, the robot inspection device is controlled to inspect the fault area according to the preliminary fault information, field fault data are collected and compared with the preliminary fault information, the final fault information of the transformer substation is obtained, and the accuracy of transformer substation fault judgment is improved.

The invention discloses a structure test detection method based on a three-dimensional laser scanning technology. The structure test detection method comprises the specific steps of placing a test object, selecting and arranging the position and the number of three-dimensional laser scanner observation stations, setting the position and the number of three-dimensional laser scanning target balls,detecting the test object and processing a detection result. The three-dimensional laser scanning technology is applied to the structure test, and the whole process of the structure test is detected and monitored. According to the structure test detection method based on the three-dimensional laser scanning technology, the full-displacement field of the structure can be tested, the full-deformation field of the structure is obtained, and the cracking, failure and damage modes of the structure can be fed back in all directions and in the whole process. According to the structure test detectionmethod provided by the invention, scientific research personnel can be helped to comprehensively master various changes of the structure in the test process, and the accuracy of understanding, analyzing and mastering the mechanical property of the structure can be greatly improved.

The invention discloses a multidimensional operation and maintenance monitoring sensor of a protective door and the protective door. By the adoption of the multidimensional operation and maintenance monitoring sensor, the positions of a door leaf in the first direction, the second direction and the third direction can be detected. Real-time position state data when the door leaf of the protective door is closed are obtained through the multidimensional operation and maintenance monitoring sensor of the protective door. By comparing the real-time position state data with initial position values after the protective door is initially installed and debugged, whether the deviation amount of the door leaf is within the allowable maximum deviation amount range or not is judged according to the protective door equipment maintenance regulations or criteria (standards), and accordingly the operation and maintenance condition of the protective door is judged. The protection effect of the protective door is further judged by mastering the position state data of the protective door of an air defense basement in real time, and unmanned online monitoring of the protective door is achieved.

The invention discloses a power system fault monitoring method. The power system fault monitoring method comprises the steps of generating a power flow network structure through an electric system, calculating the operating parameters of the electric system, simulating the electric system according to the calculated operating parameters, and monitoring the fault of a microcomputer protection device in the electric system according to the simulation result. In addition, the invention discloses a power system fault monitoring system. According to the power system fault monitoring method, the real-time power flow network structure is generated through modeling of the electric system, simulating monitoring physical quantity of the actual electric system is obtained through simulation model calculation, electric monitoring quantity is directly input into a comprehensive protection device to simulate the on-site running condition of the electric system, and therefore on-line monitoring and examining of the power system fault can be achieved efficiently and accurately.

The invention provides a stability monitoring method for a closed-loop system driven by data and belongs to the technical field of data-driven error diagnosis and control. The method includes the steps of collecting closed-loop data of the closed-loop system at a certain moment in the past to construct a Hankel matrix at first; conducting Cholesky decomposition on the constructed Hankel matrix andfiguring out uniformized stable image description and uniformized stable kernel description; utilizing the stable image description obtained in step 3 to calculate a stability margin; according to the stability margin, setting a monitoring threshold value, collecting current closed-loop data of the system, and repeating the step above to obtain the current uniformized stable image description andkernel description of the system; calculating current lacunarity of the system; finally, combining the monitoring threshold value with the current lacunarity of the system to monitor the system in real time. The method solves the problem that monitoring of the stability of closed-loop systems driven by data falls short in the prior art. The method can be applied to online system error estimationand monitoring.

The invention provides an Internet of Things monitoring system applied to convenience store equipment, aiming at solving the problems that regional distribution of convenience stores is relatively scattered, more energy-consumption equipment is arranged in the convenience stores and the layout is compact, various types of equipment in the current convenience stores cannot be remotely and intensively managed through a server, equipment faults cannot be informed to a general headquarter in time and the general headquarter cannot obtain real-time operation data of each set of the convenience store equipment. According to the Internet of Things monitoring system, a system monitoring server (10) can be used for counting and analyzing operation state information of each set of the convenience store equipment and a monitoring manager can check a data report in real time; a control command is generated according to the data report. The operation state information of each set of the convenience store equipment can be checked at anytime and anywhere through a mobile equipment terminal (20). The operation state information of each set of the equipment can be locally checked in the convenience stores through a monitoring display device (30). The operation state information of various types of the equipment in the convenience stores can be collected through a main control system (40), and the control command is sent to corresponding specific equipment.

The invention relates to an energy-saving exhaust system applied to an internet data center (IDC) machine room. The energy-saving exhaust system comprises a network monitoring terminal, a main control unit, an indoor temperature sensor, an outdoor temperature sensor, a cleanliness sensor, an air conditioner, an exhaust unit and an air intake unit, wherein the main control unit is respectively connected with the network monitoring terminal, the indoor temperature sensor, the outdoor temperature sensor, the cleanliness sensor, the air conditioner, the exhaust unit and the air intake unit. Compared with the prior art, the energy-saving exhaust system has the advantages of reducing electric energy waste, prolonging the service life of the air conditioner and the like.

The invention relates to an acquisition terminal mainly applied to monitoring a power transformer in real time, in particular to a wireless acquisition terminal based on solar energy and RF (Radio Frequency) technology. The wireless acquisition terminal comprises a power supply, a plurality of branch controllers with sensors used for measuring data of the power transformer, and a main controller used for processing the data. The branch controllers are provided with an RF transmission terminal respectively; the main controller is provided with an RF receiving terminal and a GSM communication module capable of sending signals to a dispatching center or a mobile phone; and the power supply is a storage battery which is connected with a solar charger and a solar polar plate. The acquisition terminal has the advantages of stable systematic operation, less investment, convenient equipment installation, low cost, and energy conservation and environmental protection.

The invention relates to a PCM (possibilistic C-means) clustering algorithm based online automotive suspension performance monitoring method and aims to solve the problems of excessive calculation amount and incapacity of online performance monitoring of a conventional method. The method comprises steps as follows: step one, when an automotive suspension is in a healthy state, N accelerometer samples are collected to obtain normal data; step two, a clustering center and a weight of PCM are obtained through calculation; step three, accelerometer values are collected every once in a while during running of the automotive suspension, and the membership degrees mu ki of the accelerometer samples relative to the normal data are calculated according to the clustering center and the weight of the PCM; step four, the number A of the accelerometer samples with the membership degrees lower than a threshold value Thr in a next period of time T is calculated; step five, the collected fault data and normal data are classified with an FDA (force directed algorithm) so as to obtain a classification feature vector wk. The PCM clustering algorithm based online automotive suspension performance monitoring method is applied to the field of automobile performance monitoring.

The invention provides an oil level monitoring method of an oil storage system of an oil-immersed transformer. The oil level monitoring method comprises the following steps that first, a pressure sensor is mounted on the oil-immersed transformer for collecting pressure signals to calculate the average temperature of transformer oil; second, the expanding volume of the transformer oil is calculated according to the average temperature of the transformer oil; third, the oil level of the oil storage system is calculated according to the expanding volume of the transformer oil and the shape of the oil storage system of the oil-immersed transformer to obtain corresponding oil level signals; when the oil level or oil pressure exceeds a set safety value, a monitoring terminal sends out alarm signals. The invention further provides an oil level monitoring system based on the oil level monitoring method. The oil level monitoring system comprises the pressure sensor arranged on the transformer and the monitoring terminal connected with the output end of the pressure sensor. The monitoring terminal is used for converting the pressure signals collected by the pressure sensor into oil level signals and meanwhile monitoring the oil level signals and the pressure signals. When the oil level signals or the pressure signals exceed the safety value, the monitoring terminal sends out an alarm.

The invention discloses a differential signal fault monitoring method. The method comprises the following steps: detecting an external radiation electromagnetic field of a differential signal line, judging whether the electromagnetic field is abnormal, and if yes, providing a fault alarm. The invention also discloses a differential signal fault monitoring device. The differential signal fault monitoring method and the differential signal fault monitoring device can rapidly detect the fault of the differential signal line, independently from the signal transmission; can detect the fault under the condition that the communication driving and receiving unit is partially destroyed or in dysfunction; increases the warning sensitivity and reduces the accident level; and has the advantages of simple structure, high reliability and low cost, as compared with the prior art.

The invention discloses a tailing activation process system based on drying, grinding and selecting integrated intelligent production equipment. The tailing activation process system is characterized by involving tailing intelligent production equipment used for carrying out the following activation processes on tailings, namely drying, grinding, powder selecting treatment, drying, grinding and powder selecting circulation treatment of unselected materials of powder selecting and activation treatment of selected materials, and a tailing comprehensive utilization intelligent production execution system, wherein powder separation treatment comprises magnetic separation and screening which are carried out in sequence. A drying, grinding and separation integrated treatment mode is adopted, and the magnetic separation step and the crushing step are separated and put into the powder separation step, so that the stability of the high quality of products is guaranteed; and an intelligent algorithm is adopted for monitoring and adjusting the tailing activation process in real time and monitoring equipment faults and energy consumption, so that intelligent activation production of the tailings is achieved, the average processing time of field problems is shortened by 25%, and the production plan execution rate is effectively improved by 15%.

The invention discloses a protection door detection system, a detection method and a networking method. Positions of multiple door leaves in the three-axis direction can be detected; real-time position state data of the door leaves of protection doors in a closed state can be obtained through the protection door detection system; by comparing the real-time position state data with an initial position value of the protection door obtained after initial installation and debugging, and according to maintenance and care regulations or specifications (standards), whether the offset of each door leaf is within the allowable maximum offset is judged, so that operation and maintenance health condition of the protection door is judged; by obtaining the position status data of the protection door of an air defense basement in real time, the protection effect is further judged; and data of the protection doors within the network is collected and sent to a center control processing system through a wireless network, thereby realizing the purpose of unattended online inspection of the protection doors.

According to a method for carrying out online monitoring on a database server fault of a convertor station control protection system, a server fault and warning event storage process is directly established by an sql language, then the storage process is directly called in real time by a Visual Basic application and information of a warning or fault event is acquired so as to achieve rapid positioning on a fault. A system automatically searches all servers on a host, all the servers are provided for an operator and the operator selects a server which needs to be monitored; the system is connected with the server; connection is judged whether to be successful; information of a warning and fault event data column is set, a warning and fault event of the server is tracked and warning and fault information is acquired; and the data column information of the warning and fault event is displayed, the fault is processed and the fault information is stored so as to complete the monitoring process. According to the method disclosed by the present invention, the server fault and warning event storage process is directly established by the sql language, then the storage process is directly called in real time by the Visual Basic and the information of the warning or fault event is acquired so as to achieve rapid positioning on the fault.

The invention relates to the technical field of monitoring systems, in particular to a security real-time monitoring system based on a 5G communication network, which at least comprises a video collection unit, an information prompt unit, a video response conversion unit, a portrait recognition unit and a monitoring tracking unit. The video collection unit is used for carrying out camera recording collection; the information prompt unit is used for sending a data report to the video response conversion unit when the video acquisition unit fails; the video response conversion unit is used for switching the video acquisition units according to a control instruction fed back by the control terminal; the portrait recognition unit is used for carrying out portrait recognition and comparison on the abnormal behavior personnel, and carrying out portrait recognition and comparison on the abnormal behavior personnel through other converted video collection units; the monitoring and tracking unit is used for monitoring whether the personnel have abnormal behaviors or not. According to the invention, the existing monitoring camera system in the elevator is improved, so that when the monitoring camera system is damaged, a temporarily replaced monitoring camera can be established, and the elevator can continue to work.

The invention discloses a protection door detection system, a detection method and a networking method. Positions of multiple door leaves in the three-axis direction can be detected; real-time position state data of the door leaves of protection doors in a closed state can be obtained through the protection door detection system; by comparing the real-time position state data with an initial position value of the protection door obtained after initial installation and debugging, and according to maintenance and care regulations or specifications (standards), whether the offset of each door leaf is within the allowable maximum offset is judged, so that operation and maintenance health condition of the protection door is judged; by obtaining the position status data of the protection door of an air defense basement in real time, the protection effect is further judged; and data of the protection doors within the network is collected and sent to a center control processing system through a wireless network, thereby realizing the purpose of unattended online inspection of the protection doors.

The invention discloses a memory, a submarine cable fault detection and diagnosis method, a submarine cable fault detection and diagnosis device and submarine cable fault detection and diagnosis equipment, and the method comprises the steps: obtaining the vibration information data, collected by a vibration monitoring device, of an armor layer steel wire; comprising a vibration sensor is arranged on a submarine cable repeater; generating a corresponding vibration waveform according to the vibration information data; generating a detection and diagnosis result of the submarine cable according to the characteristics of the vibration waveform; the detection and diagnosis result comprises one or any combination of whether the submarine cable is abnormal in stress, whether the submarine cable is faulty, a fault type and a fault position; the submarine cable fault detection and diagnosis method is not affected by sea tide strong electromagnetic interference, so that judgment can be made in time even if the submarine cable is slightly mechanically damaged, and the accuracy of fault detection and diagnosis is improved.

The invention provides a fault diagnosis method and system for a variable pitch bearing of a wind generating set. The system comprises a fixing assembly used for fixedly connecting a blade flange and a hub flange; the fixing assembly comprises an inner ring and an outer ring, and the outer ring is arranged on the outer side of the inner ring in a sleeving mode; the upper end of the outer ring is connected with the blade flange; the lower end of the inner ring is connected with the hub flange; a bearing ring is embedded in the outer wall of the inner ring, and the outer wall of the bearing ring is fixed on the inner wall of the outer ring; and the bearing ring is provided with a monitoring unit, the monitoring unit is used for monitoring faults of the variable pitch bearing and transmitting monitoring signals to a control center, and the control center is connected with an alarm unit. With the fault diagnosis method and system adopted, the blade falling time can be prolonged, early warning is carried out for workers, so that the workers can perform timely maintenance or replacement, and the safety of the wind generating set after long-term use is improved.

The invention belongs to the technical field of avionic circuits, in particular to an aircraft electric heating deicing control circuit. At present, there are few anti-icing control circuits, and functions such as high-power electrical equipment detection circuit, small-signal high-precision control, bus communication, dual control backup, etc. are not integrated. The safety of use is low, and the failure rate is high. The ice effect is not ideal. The aircraft electric heating deicing control circuit of the present invention includes a power supply component and a central processing unit. The central processing unit receives the signal of the signal processing component, the signal of the monitoring circuit and the bus signal, and provides the control signal to the power amplification circuit. , providing a switching signal to the monitoring line; the signal processing component receives the fault information of the short circuit of the interrupted phase of the power distribution module. Meet the requirements of aircraft de-icing function and safety.

The invention relates to an on-load tap-changer on-line monitoring system of a transformer. The system comprises a plurality of signal acquisition devices and processing devices. The plurality of signal acquisition devices are arranged in one-to-one correspondence with a plurality of main contacts of the on-load tap-changer, and the plurality of signal acquisition devices are used for correspondingly acquiring optical signals generated by the corresponding main contacts during disconnection operation and converting the optical signals into electric signals; and the processing device is used for receiving the plurality of electric signals sent by the plurality of signal acquisition devices, and outputting early warning information when the amplitude of at least one electric signal in the plurality of electric signals is greater than a preset amplitude threshold. The monitoring result of the system provided by the invention is more accurate; moreover, the system can monitor the on-load tap-changer under the condition that the transformer is not stopped, does not affect the normal operation of the transformer, can monitor the on-load tap-changer in real time, improves the monitoring sensitivity of the on-load tap-changer, and can effectively monitor the fault of the on-load tap-changer.