44results about How to "Improve maintenance level" patented technology

The invention discloses an automobile maintenance equipment network management system. The system comprises: a first switch and a second switch; a power switch connected with the first switch and the second switch; and a first router and a second router connected with the first switch and the second switch respectively through firewalls, the first router and the second router being connected through Internet. The system also comprises an automobile gearbox fuel change machine connected with the first switch through WIFIAP, and the first switch is also connected with a server and a client. The system further comprises an automobile air-conditioning refrigerant recovery machine, an automobile air-conditioning pipeline cleaning machine and a mobile phone APP that are connected with the second switch through WIFIAP. A utilization rate of equipment is increased, clients needing automobile maintenance are supervised, it is convenient to use the network management system, management is fine, automation is high, automobile owners can check maintenance records of automobiles through a mobile phone APP, and the maintenance quality is optimized and improved for management convenience through analysis and judgment of a lot of maintenance data at a service end.

The invention belongs to the technical field of electrical equipment monitoring and relates to a monitoring method and a monitoring system for an overheat fault of a transformer. The technical problems that traditional monitoring methods and monitoring systems in the prior art are not reasonable enough and the like are solved by the invention. The monitoring system comprises the following steps: A, thermal image acquisition; B, image recognition processing; and C, fault diagnosis and processing. The monitoring method and the monitoring system for the overheat fault of the transformer have the advantages that acquired image information is recognized by adopting a non-contact monitoring mode to realize fast recognition and diagnose of the part, the degree the type of the early potential fault of the transformer. The monitoring method and the monitoring system for the overheat fault of the transformer have the characteristics that the safety, the reliability and the efficiency are high. Meanwhile, by utilizing the non-contact monitoring mode, a condition is provided for realizing all-weather state monitoring on the transformer on the premise that the operation of the transformer is not influenced, and therefore, the safe, stable and reliable operation of equipment is ensured, the maintenance level of the transformer is comprehensively promoted, and the maintenance cost is reduced. The system is reasonable in design, simple in structure, good in working stability and high in fault detection rate.

The invention discloses an integral concentration control method of plant management and control, which is characterized by the following: programming the concentration control and management of operation, monitor and management equipment in the coal handling, ash removal and water carbureting auxiliary workshop; setting the concentration control chamber of auxiliary workshop; controlling the integral PLC or DCS unit in each control chamber of auxiliary workshop to do concentration management; accomplishing the concentration control and management through network control; setting four control points of control chamber, water carbureting, coal handling and ash in the auxiliary chamber. The network structure is allocated in each control chamber of auxiliary workshop, which adapts hybrid topology structure; the auxiliary workshop adapts concentration star topology structure; the PLC or DCS concentration control network adapts industrial Ethernet. The system control power, controller and network all apply redundant allocation.

The invention discloses a general fault detecting and maintenance method for equipment. The general fault detecting and maintenance method for the equipment comprises the following steps of carrying out modeling on maintenance knowledge of the equipment faults, automatically detecting and diagnosing the faults and carrying out auxiliary maintenance based on a model, simulating maintenance training based on the model, optimizing an experience knowledge model in real time in the maintenance training process, and synchronizing maintenance information and experience knowledge model information in the maintenance training process. Compared with an existing equipment maintenance method, the general fault detecting and maintenance method for the equipment enables the accumulation and the sharing of equipment maintenance experience knowledge and the automatic diagnosis of equipment faults to be achieved, and assistance can be provided for related maintenance strategies through the analysis and the exploitation of the maintenance record information. In addition, effective transmission of the experience of experts to primary maintainers is achieved through the step of simulation training. The general fault detecting and maintenance method for the equipment is especially suitable for chemical defense troops and other occasions where a large amount of complex equipment needs to be maintained frequently and where the turnover rate of maintenance personnel is high. Practice proves that the general fault detecting and maintenance method for the equipment can obvious improve equipment maintenance efficiency, promote maintenance levels and improve maintenance quality.

The invention discloses a rail head profile measuring instrument, which relates to the technical field of rail repair and maintenance; it includes a positioning device, a fixing device for fixing the rail, and a measuring device; the fixing device is arranged at the lower part of the positioning device, and the measuring device is arranged at the positioning device The upper part; the measuring device includes a slideway, a ruler and a retractable probe arranged on the fixed plate. The scale slides on the slideway through the slider, and the fixed plate can slide up and down. The fixed plate is connected with the positioning device, and a horizontal row of probes Set at the lower end of the fixed plate; a horizontal row of probes can match and fix the upper end of the rail head profile; there is also a standard template, which is fixed on the fixed plate at the position corresponding to the probes; it can be quickly measured on the job site The amount of grinding required for the rail and the difference between the polished rail profile and the designed profile can improve the maintenance and repair level of the rail and improve work efficiency.

The invention belongs to wearable auxiliary equipment for aircraft maintenance in the field of the maintenance of aviation machines. The wearable auxiliary equipment comprises a wearable computer, a head motion detector which contains a helmet, an inertial sensor with a gyroscope or a gyroscope of the helmet, a microcontroller and a communication circuit, a camera, a monocular display, earphones, a microphone and a power supply. According to the wearable auxiliary equipment, the head wearable camera is arranged additionally to take pictures and record videos for reference on conditions of maintenance sites and the like, and an operation request is sent by using voice and is confirmed or denied in modes of nodding and shaking a head, so that the auxiliary equipment for maintenance has the characteristics that a comprehensive function is high, the auxiliary equipment can be maintained without manual operation, the conditions (such as failure phenomena and maintenance results) of the maintenance sites and the like can be photographed and recorded accurately and objectively at any time to analyze failure and track the maintenance results subsequently, the maintenance quality and the maintenance efficiency can be improved effectively, the maintenance cost can be reduced and the like.

The invention provides a method for evaluation and early warning for train axle properties based on mathematical models and belongs to the field of methods for evaluation and early warning of high speed train axle properties. The method comprises the steps of establishing an axle temperature variation mathematical model for axle operation in each of the latest 30 days, and obtaining a group of parameters for evaluating the axle properties with respect to each model; performing smoothing processing on each group of parameters, and performing abrupt change detection and trend detection for the axle properties based on the smoothed property parameters. The qualitative method can assist train maintainers in accurately and reliably judging whether axle temperature alarm signals belong to short-period false alarms capable of self-recovery, and further provide important reference bases for maintenance decisions thereof.