48results about How to "Improve maintenance and repair efficiency" patented technology

The invention discloses a draught fan state estimation method and system. The method comprises the steps that online operation data of a draught fan is obtained; the online operation data is preprocessed, and time series data is obtained; whether or not the time series data shows that the draught fan is in a failure state through an online state monitoring model is judged, and a judging result is obtained; when the judging result shows that the draught fan is not in a failure state, the output detection result is health; when the judging result shows that the draught fan is in the failure state, the time series data showing that the draught fan is in the failure state is marked, and a failure detection sample is obtained; the failure type corresponding to the failure detection sample is determined through the online failure detection module; the failure type is output. Accordingly, the time series data is adopted as an input detection sample, compared with single state information, the time sequence is achieved, the time series data is more real, time-varying information of a draught fan system can be reflected, and the failure diagnosis rate of the draught fan is increased.

The invention relates to a novel cold heading device for automobile bolt machining. The novel cold heading device comprises a body, wherein a cold heading die and a mechanical arm are arranged in thebody; the mechanical arm and the cold heading die are matched to transfer a machined part; a monitoring camera is further arranged in the body; a protective cover shell is arranged outside the monitoring camera; the protective cover shell is formed by splicing a front end plate, a rear end plate, a left side plate, a right side plate, a top plate and a bottom plate in a sealed manner; a lens holeis formed in the front end plate; a lens is connected in the lens hole; the front end of the lens is sleeved with a support; a rotary air cylinder is arranged on the top plate; an air cylinder is connected to the rotary air cylinder; a pull rod is connected to an air cylinder rod of the air cylinder; a protective cover is arranged at the end, away from the air cylinder rod, of the pull rod; and the pull rod is connected with the protective cover through a linkage assembly. The novel cold heading device has the beneficial effects that the protective cover is convenient to replace, pictures shotby the monitoring camera are clearer, and the judgment accuracy of technicians is improved.

The invention discloses a water supply tank with self-cleaning function, which belongs to the technical field of water supply tanks, and comprises a water tank body, the top of the water tank body is slidably connected with a filtering mechanism, the inner cavity of the water tank body is provided with a water storage mechanism, and the water tank body Both sides of the main body are equipped with a cleaning mechanism, the filter mechanism includes a water pump, the bottom of the water pump is fixedly connected with a mounting plate, the bottom of the mounting plate is fixedly connected with a mounting seat, and both sides of the mounting seat are fixedly connected with blocks , a card hole is opened on one side of the card block. In the present invention, the bacterial water liquid is quickly discharged through the designed connecting pipe, thereby satisfying the cleaning effect of the water diversion tank, and the water diversion tank on both sides can clean the water diversion tank on one side independently, so that the water diversion tank on the other side The cabinet works normally, and the water liquid in the water distribution tank on the cleaning side can be filtered by the filter element frame when it is attracted by negative pressure, so as to ensure the cleanliness of the water supply in the water distribution tank on the normal side, thereby effectively avoiding the interruption of water supply caused by the cleaning work.

The invention discloses an electric appliance information control system based on GPS positioning. The electric appliance information control system is characterized by comprising an acquisition and recording module, a GPS positioning module, a communication module, a subcontrol module and a master controller, wherein the acquisition and recording module is used for acquiring and recording usage information of an electric appliance; the GPS positioning module is used for positioning the electric appliance; the communication module is used for being in communication connection with the master controller; the subcontrol module is respectively connected to the acquisition and recording module and the communication module and is used for uploading the information of the electric appliance, which is recorded by the acquisition and recording module, to a terminal through the communication module, and executing commands issued by the master controller to the corresponding electric appliances;and the master controller is used for acquiring and analyzing the information of a plurality of electric appliances and issuing the commands to the electric appliances. According to the system, the information of an electric appliance using process is transmitted to the master controller through the communication module, and the master controller carries out statistics and analysis on the information, when the electric appliance breaks down, the master controller can send the command to the subcontrol module, the electric appliance is turned off, and the safety performance of the electric appliance is improved.

The invention discloses a cable working well lid. The cable working well lid comprises a base frame and a transparent substrate. The base frame is arranged at the wellhead part of a cable working well. The transparent substrate is arranged on the base frame. Spacing holes are formed in the transparent substrate. Fixing holes are formed in the base frame. The spacing holes are in butt joint with the fixing holes in a matching manner, and external bolts penetrate through the spacing holes. Anti-theft bolt reserved holes are formed in the base frame. The visual degree of a cable pipe trench is enhanced greatly by virtue of the transparent well lid, so that operating personnel can grasp the situation of facilities, such as an in-trench cable, a bracket and a grounding device, without opening a lid plate, the power cable line inspection efficiency is improved, and a guarantee is provided for the safe operation of the cable line is ensured.

The present invention relates to the technical field of compensators, and discloses an intelligent connection safety compensator for oil field photovoltaic docking high-voltage distribution network, which includes a base plate and a compensator body, the top surface of the base plate is fixedly connected with a mounting platform, and the compensator body is fixedly installed There is a compensator cabinet on the top of the platform and above the bottom plate. The compensator cabinet includes a protective cover. The left and right inner walls of the protective cover are respectively fixedly connected with connecting sleeves. Connect the limit support column, the bottom end of the limit support column is provided with a manual lifting control mechanism, the bottom surface of the bottom plate is provided with a lifting linkage mechanism, the lifting linkage mechanism includes a worm and a worm gear rod, and the worm and the central outer wall of the worm gear rod are meshed and connected to protect The inner top of the cover is provided with a radiator, which is convenient for the operator to maintain and overhaul the compensator body, and at the same time facilitates the disassembly and installation of the compensator body on the installation platform, which effectively improves the efficiency of maintenance and overhaul.

Disclosed is a wind power plant operation and maintenance supporting system based on the image stream processing technology. The system is composed of a monitoring network layer, a local command layer, a field command layer and a remote command layer. Wind power monitoring information is transmitted to a local command terminal, a center control room field server and a remote monitoring center remote server through video and audio monitoring equipment in a hierarchical mode. In relevant data processing terminals, physical abnormity automatic diagnosis and recognition of wind power generator set key assemblies are completed through the image stream processing and mode recognition technologies. Remote and real-time field maintenance is commanded by experts based on diagnosis and recognition results and monitoring video and audio information. Commands can also be launched from the local command terminal, the center control room field server and the remote monitoring center remote server to monitoring network equipment, and real-time two-way communication is achieved.

The present invention provides a method, device and terminal for detecting the operating state of a photovoltaic power supply system. The method includes: obtaining operating parameters corresponding to time nodes of the photovoltaic power supply system, the operating parameters at least including ambient temperature, voltage and current; The node is a label, and the operating parameters corresponding to the time nodes are constructed into an operating parameter set; the operating parameter set whose ambient temperature is a preset temperature is selected as a sample comparison unit; the sample comparison unit The operation parameters of the sample comparison unit are compared with the standard value; the operation status of the photovoltaic power supply system is obtained according to the comparison result of the operation parameter of the sample comparison unit and the standard value. The present invention changes the way of passively checking and determining the cause one by one into actively locating the cause of the problem, improves the efficiency of maintenance and repair, and reduces the maintenance cost.