4results about How to "Realize remote operation" patented technology

The utility model discloses an intelligent control type screw rod hoist, including hoist body, gate mounting seat and friction disc, the gate mounting seat is provided with the gate body in, the top of gate body is provided with crossbeam, be provided with with hoist body cooperation's hoist body on crossbeam, be provided with the bottom plate on crossbeam, be provided with lead screw on the bottom plate, be provided with slider movable left and right on the lead screw, be provided with third motor on the slider, third motor is provided with with the hand wheel cooperation's friction disc on hoist body through second gear box. The utility model discloses an intelligent control type screw rod hoist, simple structure, clever design, practical function, effectively solved the hoist in prior art when the self -contained motor cannot work must need operating personnel to reach the scene through hand wheel to hoist and operate, bring certain inconvenient problem in the use process.

The application relates to a device remote connection method, device, medium and device, which is applied to an operation and maintenance platform and comprises the following steps: receiving a remote connection request of a client, wherein the remote connection request comprises a target access end device; when a WebSocket connection is not established between the target access end device and the operation and maintenance platform, adopting a message queue mode to inform the target access end device to send a request for establishing the WebSocket connection to the operation and maintenance platform, and establishing the WebSocket connection; through the WebSocket connection, establishing a remote connection session of the client to the target access end device, and bidirectionally transmitting operation data of the client and response data of the target access end, so that an operation and maintenance personnel remotely operates the target access end through the client. An additional proxy program does not need to be deployed on the access end device, the workload of operation and maintenance and the complexity of the system are reduced, and communication cost and processing time are reduced.

This utility model discloses an intelligent pressure regulating valve, comprising: a main valve body having an air inlet chamber and an air outlet chamber; a shut-off valve mechanism including a control valve body, a movable component, an electromagnetic component, and a control module. The control valve body is provided with a first channel, a second channel, and a connecting groove. The first channel can communicate with the air inlet chamber, and the second channel can communicate with the air outlet chamber. The movable component is movably disposed in the connecting groove, and a connecting hole is provided in the connecting groove. The electromagnetic component is disposed in the control valve body. The control module and the electromagnetic component are electrically connected. When the movable component is in the first position, a connecting gap is formed between the movable component and the connecting hole, and the connecting gap connects the first channel and the second channel. When the movable component is in the second position, the movable component blocks the connecting hole. When the air pressure in the connecting groove is too high, the movable component is pushed by the air pressure to move to the second position. When the electromagnetic component is energized, the electromagnetic component can drive the movable component to move to the second position. The shut-off valve mechanism has dual protection functions of overcurrent shut-off and intelligent shut-off.

This invention relates to the field of electric drive control technology for high-pressure, high-displacement pumps in oilfield fracturing operations. It discloses a vehicle-mounted high-power electric drive system. The high-voltage power distribution unit is connected to the power input unit and consists of a load switch and a circuit breaker connected in series. The load switch is connected to a fuse to output low-voltage control power. The circuit breaker is sequentially connected to a phase-shifting transformer and a medium-voltage frequency converter to provide the main power supply for the medium-voltage motor of the fracturing pump. The input terminal of the pre-charge unit is connected to the load switch, and the output terminal is connected to the phase-shifting transformer. A cooling system provides cooling for the phase-shifting transformer and the medium-voltage frequency converter. This invention also discloses a control method for the vehicle-mounted high-power electric drive system. This vehicle-mounted high-power electric drive system and its control method enable the integrated vehicle-mounted operation of a high-power, high-displacement fracturing pump skid and its drive system in the fracturing engineering field, significantly reducing on-site work intensity, lowering operating costs, and mitigating on-site risks.