3results about How to "Operational science" patented technology

This utility model discloses a tunnel fire-fighting foam liquid filling system, belonging to the field of fire-fighting equipment technology. It includes several fire boxes, a foam liquid filling vehicle, and a monitoring center. Both the fire boxes and the foam liquid filling vehicle are networked with the monitoring center to achieve data exchange. Specifically, each fire box contains a foam liquid storage tank and a first control device. The foam liquid storage tank is equipped with a first liquid level sensor, a solenoid valve, a variable frequency delivery pump, and a first flow meter. A flow regulating valve and a second flow meter are installed on the pressure water pipe. All components are connected to the first control device. The foam liquid filling vehicle contains a foam liquid storage tank, a variable frequency high-pressure pump, a battery, a third flow meter, and a second control device. Both the first and second control devices are connected to the monitoring center. This utility model provides a highly efficient, intelligent, and easy-to-maintain tunnel fire-fighting foam liquid filling system.

The utility model discloses a beaker clamp convenient to use, and belongs to the technical field of chemical experiments, the beaker clamp convenient to use comprises a mounting rack, one end of the mounting rack is fixedly connected with a pin shaft, the outer circumferential surface of the pin shaft is rotatably connected with a pair of lantern rings, and the outer circumferential surfaces of the lantern rings are fixedly connected with clamping handles and connecting rods; an elastic piece is fixedly connected between the clamping handles, a clamping nozzle is fixedly connected to one end of the connecting rod, a handle is fixedly connected to the end, away from the pin shaft, of the mounting frame, a pair of connecting blocks is fixedly connected to the outer circumferential face of the handle, through grooves are formed in the pair of connecting blocks, and a rectangular operating rod penetrates through the through grooves; the rectangular operating rod is movably connected with the connecting block through the through groove, and the upper end of the rectangular operating rod is fixedly connected with a connecting frame, so that in the whole clamping process, the wrist joint of the hand of a person is vertical, the wrist joint does not need to be bent at an angle, the person can conveniently apply force for a long time, and the possibility that the beaker falls off due to lack of force can be effectively reduced.

The invention discloses an unmanned aerial vehicle full-automatic cruise early warning method based on hangar collaborative scheduling, and relates to the technical field of hydraulic engineering, and the method comprises the following steps: carrying out the hangar network deployment and system initialization in advance, deploying a plurality of unmanned aerial vehicle automatic hangars in an inspection area according to a preset site selection rule, communication adaptation and parameter configuration of the unmanned aerial vehicle, the hangar and the intelligent inspection platform are completed; task splitting and dynamic allocation are carried out, and the intelligent inspection platform receives inspection requirements and splits a global task into a plurality of sub-tasks; through a multi-hangar cooperative scheduling mechanism, the unmanned aerial vehicle can realize cross-regional relay operation, autonomous take-off and landing, energy supply and task continuing can be completed without manual intervention, the long-distance inspection requirement under the complex terrain is effectively adapted, the traditional mode of depending on manual control or single-point hangar operation is thoroughly changed, and the unmanned aerial vehicle can be conveniently and rapidly controlled. Real-time preprocessing and cloud deep analysis of inspection data are realized, and illegal behaviors and potential safety hazards are quickly identified.