6results about How to "Reduce operation and maintenance" patented technology

The utility model relates to a hydrogen production device which comprises a steam generation device and a steam electrolysis device, liquid water is firstly heated to form steam, then the steam is directly electrolyzed, the problem that an electrolysis unit is polluted by water is avoided, and the service life of the electrolysis unit is prolonged; the utility model further relates to an energy multi-stage utilization device, waste heat generated in the electrolysis process is used for heating water, and the electrolysis efficiency is improved.

The application discloses a kind of overall arrangement methods of off-grid hydrogen production platform suitable for large-scale deep far sea wind power, and relates to the technical field of off-grid hydrogen production platform, the present application adopts reasonable vertical arrangement method, it is favorable to reduce platform load gravity center, reduce platform vertical irregularity, adopt reasonable plane arrangement scheme, it is favorable to the operation and maintenance of equipment device, and also reduce the adverse effect of gravity load eccentricity on platform structure, ensure the structural rationality and safety of deep far sea off-grid hydrogen production platform.

The present invention discloses a method for constructing a proxy service for device access to an Internet of Things platform, a device access proxy service device, an Internet of Things system, a computer device, and a storage medium. One embodiment provides a method for constructing a proxy service for device access to an Internet of Things platform, including: establishing a communication path between the access device and the Internet of Things platform in response to device data sent by the access device, and using the communication path to achieve communication between the access device and the Internet of Things platform to form a proxy service; using container technology to construct and deploy the proxy service. The present invention provides a method for constructing a communication path between the access device and the Internet of Things platform through a proxy service and achieving communication between the two, and connecting non-TCP / IP devices to the Internet of Things platform through a preset data conversion interface; using container technology to integrate data conversion, establishing a communication path, and achieving data communication into a service, and constructing a service image for deployment, thereby improving flexibility and reducing operation and maintenance deployment costs, which has practical significance.

This application provides a KNN-based method and apparatus for software test scope assessment. The method includes: acquiring information on each first call chain affected by a code modification of a target software platform; determining information on the second call chains for each automated test scenario corresponding to each interface test case of the target software platform; and using the KNN model to determine all automated test scenarios corresponding to the code modification to generate a test scope assessment report for the code modification of the target software platform. This application can effectively improve the automation and intelligence of software test scope assessment, and can effectively improve the accuracy and validity of the software test scope assessment results, thereby improving the reliability and efficiency of testing based on the software test scope assessment results.

The invention relates to a networking solution for software defined wide area network communication. According to the solution, Hub-Spoke networking and a hierarchical networking scheme are established in a mixed mode, five-level network points are included, the first-level network point is a top-level center network point, the second-level network point is a secondary-level center network point, and the third-level network point, the fourth-level network point and the fifth-level network point are branch network points; first-level, second-level and third-level network points are configured with double devices, and fourth-level and fifth-level network points are configured with single devices; sD-WAN tunnels are respectively established between each branch network point and the top-level central network point and between each branch network point and the secondary-level central network point, and link access adopts an internet line; an SD-WAN tunnel is established between the top-level center network point and the secondary-level center network point, and link access adopts an MSTP or MPLS-VPN line and a dual-internet line; compared with the existing solution, the private network resource can be scheduled on the unified cloud network platform, the bidirectional perception of the network edge equipment is realized, and the network quality and safety are improved.

The invention provides a micro-positive pressure bearing seat dust removal device, which relates to the technical field of dust removal, and comprises a bearing seat body, a dust cover is mounted on the bearing seat body, an air pressure sensor is mounted on the dust cover, an air pipe is connected to the dust cover, an electric control valve is mounted on the air pipe, and one end of the air pipe is connected with an air storage tank. An air inlet of the air storage tank is connected with an air compressor, and a controller is installed on the air compressor. The micro-positive pressure bearing seat dust removal device has the beneficial effects that based on poor field operation environment and serious dust pollution of a belt conveyor, the device utilizes air pressure difference to change the air circulation direction, so that airflow flows to the outside from the inside of the stainless steel dust cover, dust is prevented from entering, and external dust cannot enter the inside of the stainless steel dust cover; and it is guaranteed that the bearing seat is located in a relatively clean and dry space, dust does not enter the bearing seat, and the service life of the bearing is greatly prolonged.