40results about How to "Avoid secondary loss" patented technology

The invention discloses a medical logistics robot system based on visual positioning and a control method thereof. The system comprises a central processor, a communication module, a laser guidance module, a positioning module, an alarm module, a human-computer interaction module, a remote server and an obstacle avoidance module. The central processor receives the transport instruction of the communication module to preliminarily plan the advancing route of the robot and transmits the preliminarily planned route to the laser guidance module to guide the robot to move according to the set route. The advancing route of the robot is secondarily planned according to the received obstacle information of the obstacle avoidance module. The central processor receives malicious harassment information of the alarm module and then transmits surrounding image information and position information of the robot to the remote server through the positioning module. The logistics transport efficiency can be enhanced and the labor cost can be reduced so as to have high efficiency, safety and reliability.

The invention provides a waste heat recovering device of high-temperature metallurgy slag particles. The device comprises a middle hopper, a boiler body, a steam pocket, a superheater, an evaporator, an economizer and a discharging machine, wherein the middle hopper is arranged above the material inlet of the boiler body; a refractory material is arranged in the boiler body and a rectangle cavityis formed; the boiler body is divided into a storage section and a work section from top to bottom; the superheater, the evaporator and the economizer are successively arranged in the work section from top to bottom and respectively consist of single or multiple heat exchange pipe groups; the two ends of each heat exchange pipe are respectively connected to a water inlet header and a water outletheader of each heat exchange pipe group; the water inlet header is connected with an distribution header through a distribution pipe; the water outlet header is connected with a converge header through a converge pipe; the steam pocket is connected with the water outlet header; the outlet end of the superheater is connected with a steam pipe network or steam turbine; and the discharging machine is installed at the outlet of the boiler. By using the waste heat recovering device, uniform heat exchange can be realized, the yield and the quality of the steam are improved, and the recovery efficiency of waste heat is high.

The invention provides a multimode-single-mode structured optical fiber surface plasma resonance sensor and a detection method thereof. The sensor comprises a broad-band light source, an optical isolator, an optical fiber coupler, an optical circulator, a multimode fiber, a coating sensing unit, a spectrograph and a computer. Light emitted by the broad-band light source is transmitted to the core of the multimode fiber, and at the junction of the multimode fiber and a single-mode fiber, because the core diameter of the single-mode fiber is far smaller than that of the multimode fiber, an optical signal in the core of the multimode fiber is partially leaked to the cladding of the single-mode fiber, and surface plasma resonance effect is generated at the sensing unit so as to carry out online detection on external substances. According to the invention, light leaking to the cladding of the single-mode fiber is sufficiently used for detection, treatment on the cladding is avoided, influence of the cladding of the fiber on the sensor is eliminated, the detection sensitivity of the sensor is improved, the making difficulty of the sensor is reduced, and compared with a sensor with a multimode-single-mode-multimode structure, the light transmission efficiency of the sensor is improved, and detection for a weak signal is realized.

The invention provides a bridge-plug-free immovable string casing damaged well chemical plugging technology. The technology comprises the steps that a production layer is occupied and plugged with a guanidine-gum-based solution, the density difference and wettability of organic resin, guanidine gum and water are used, a mechanical bridge plug is replaced by injecting suspended organic resin, andmeanwhile, an immovable string squeezes and injects a plugging agent to a casing damaged well with a large water absorption amount, so that chemical plugging of the casing damaged well is completed inone pass. The bridge-plug-free immovable string casing damaged well chemical plugging technology reduces the cost, avoids cost and time waste caused by multiple times of bridge plug arranging, and avoids the secondary loss of inner walls of fragile casings of old bridge plug casing damaged wells and inner wall corrosion acceleration caused by the secondary loss. The labor intensity in the construction process is greatly reduced. No plugging agent exists in the string, so that the risk that a drilling tool is stuck during plugging operation is greatly reduced, and the chemical plugging operation time is greatly shortened.

The invention discloses a multi-information-source direct positioning method based on an unmanned aerial vehicle loading nested array, and the method comprises the steps: an unmanned aerial vehicle receiving a plurality of radiation source signals at different positions, and carrying out the sampling of the received signals; respectively calculating a received signal sampling covariance matrix ofeach position, and carrying out vectorization processing on the received signal sampling covariance matrix; fusing the vectorized observation signals to obtain processed virtual receiving signals; andconstructing a loss function of position estimation by adopting a direct correlation method, and obtaining a final radiation source position estimation result through grid search. According to the invention, secondary loss of position information can be effectively avoided, the positioning precision is improved, simultaneous positioning of multiple signal sources can be realized without additional information matching, the limitation of the degree of freedom of the array antenna can be broken through, and simultaneous positioning of multiple signal sources when the number of signal sources isgreater than the number of array elements is realized.

The invention discloses a device for enriching copper ions in water. The device comprises a shell, a mesh layer, a dielectric layer and a culture medium, wherein the shell is a rigid structural component, and a window through which water and culture come in and out is formed in the shell; the mesh layer is arranged on the inner side of the shell, and a porous structure with functions of achievinga filtering effect and enabling the water and culture to go in and out is formed in the mesh layer; the dielectric layer is arranged on the inner side of the mesh layer and comprises a porous active material; the copper ions and the culture are reacted in the porous active material to enrich and recover the copper ions; the culture medium is arranged on the inner side of the dielectric layer and is used for growing and propagating the culture. The enrichment and treatment effects of microbes on the copper ions in contaminated water are utilized, and the culture medium is actively provided forculturing and propagating functional bacteria and promoting the culture to react with the copper ions in the water, and the aims of enriching and treating the copper ions in the contaminated water areachieved. The device has excellent adaptability to various kinds of water and is excellent in microbial activity and high in contamination treatment ability.

The invention discloses a reactor, a system and a method for urine in-situ resource recovery, and belongs to the technical field of urine recovery. The reactor comprises a reactor body, the upper and lower ends of the reactor body are respectively a water inlet end or a water outlet end, the water inlet end is connected with urine, and the water outlet end is used for discharging residual urine after nitrogen, phosphorus and potassium are recovered. The reactor body is filled with a filler for adsorbing nitrogen, phosphorus and potassium resources, and the filler and the reactor body are detachable. A tubular pressing plate is arranged between the reactor body and the water inlet end and the water outlet end, the reactor body is connected with the tubular pressing plate through a flange, and a filter plate is arranged between the reactor body and the tubular pressing plate. The system comprises a urine collecting sanitary appliance, a filtering device and a reactor which are sequentially connected through a pipeline, and water passing or emptying of the reactor is achieved by controlling opening and closing of a valve so that nitrogen and phosphorus can be recycled through filler or the filler can be recycled. The reactor is simple in structure, unpowered and detachable, most of nitrogen and phosphorus and part of potassium in urine are efficiently recycled from the source, effective utilization of resources is achieved, and the urban sewage treatment load is relieved.

The invention discloses a novel fish tank filter, and relates to the technical field of fish tank assisting equipment. The novel fish tank filter comprises a fish tank; to-be-treated water is arrangedin the fish tank; the bottom of the fish tank is connected with a water outlet pipe; the water outlet pipe is sequentially connected with an isolation separation box, a first connecting pipe, a sealed filter box, a second connecting pipe and a water storage device; a water pump is arranged in the water storage device and connected with a water inlet pipe; the water inlet pipe is connected to thefish tank; the to-be-treated water sequentially passes through the water outlet pipe, the isolation separation box, the first connecting pipe, the sealed filter box, the second connecting pipe and thewater storage device, and the to-be-treated water in the water storage device is guided into the fish tank again through the water pump and the water inlet pipe; an electromagnetic valve is arrangedin the water outlet pipe; a first water level detector is arranged in the fish tank; a second water level detector is arranged in the water storage device; the first water level detector and the second water level detector are both connected with a processor; and the processor is connected with the electromagnetic valve. The novel fish tank filter has the advantages of high safety performance, energy saving and high filtering efficiency.

The invention discloses an adjustable valve plate stamping die which comprises a stamping loading power base and a base. A hydraulic body is arranged at the middle position of the side, close to the base, of the stamping loading power base. Detachable die seats are movably connected to the symmetrical positions of the inner surface of the side, close to the base, of a limiting die and the inner surface of the top of the base separately. Bayonet balls arranged on shaft rods are movably connected with embedding grooves, the position of the shaft rods can be temporarily fixed through cooperationof the bayonet balls and the embedding grooves, corresponding die tools and die tool matching blocks are installed in a replacement mode according to the type of valve plates needing to be stamped, and the die tools and the die tool matching blocks can be replaced independently so that great convenience is brought during maintenance; and the sides, on the close sides of limiting rods, of movable rods are each movably connected with a limiting clamping base through a reset spring, the valve plates are clamped through grooves of the limiting clamping bases, and therefore the position of the valve plates can be restrained, the situation that the die tools are blocked by the valve plates can be avoided, and under action of the reset springs, valve plates of different sizes can also be tightlyclamped so as not to block the die tools.

The invention discloses a big data computer network security protection device in the field of security protection, and the device comprises a box body, the right side wall of the box body is fixedly connected with a detector, the inner lower surface of the box body is fixedly connected with a placement block, the lower surface of the box body is provided with a plurality of wire arrangement grooves, and the upper surface of the placement block is fixedly connected with a body. A fire extinguishing mechanism is arranged on the inner upper surface of the box body, a wire taking mechanism is arranged on the inner front face of the box body, third racks are fixedly connected to the inner side walls of the body, and the fire extinguishing mechanism comprises a motor, a cam, a connecting rod, a sliding rail, a sliding block, a first rack, a fixing frame, a first rotating rod, a first gear, an automatic fire extinguisher and a first belt wheel; the motor is fixedly connected to the back of the box body; the motor is electrically connected with the detector, and the output end of the motor is fixedly connected with the cam. According to the invention, the fire extinguishing range of the automatic fire extinguisher is effectively widened, the fire extinguishing efficiency is improved, and fire accidents can be effectively prevented.

The invention relates to the technical field of machinery, in particular to a speed reducer, comprising a first gear, a second gear and a power chain, and the first gear, the second gear and the power chain form an integrated transmission structure. The invention is equipped with a plurality of gears and transmission chains with different diameters, and the transmission is carried out through the transmission chain, the transmission noise is small, the speed is controlled by detecting the transmission ratio, the deceleration ratio is controlled with high precision, and high-strength low-carbon alloy steel and high-strength alloy steel are used. Made of molecular materials, it has strong concession and avoids secondary loss of the machine.

The invention discloses a continuous riding method and a continuous riding device for an electric vehicle or a motorcycle with punctured tires. The continuous riding method comprises following steps: (A) hooping the tires; (B) strapping rubber belts so as to realize the continuous normal riding of the electric vehicle or the motorcycle with the punctured tires. The continuous riding device comprises a plurality of belt-shaped hoops and a rubber strip, wherein the belt-shaped hoops are sequentially integrally connected in series and are uniformly adjusted and fixed by virtue of each tightening regulating part, a hoop is arranged in the rubber strip and comprises a tightening regulating part and a long-strip-shaped belt body, the extending end of the belt body is inserted into the tightening regulating part to form a closed rubber ring and is regulated and tightened by virtue of the tightening regulating part. According to the method and the device, the continuous normal riding of the electric vehicle or the motorcycle with the punctured tires can be realized, drivers do not need to get off the electric vehicle or the motorcycle to push the electric vehicle or the motorcycle, so that the user experience is good, and users can feel as if new tires are exchanged in the application process and can continuously ride the electric vehicle or the motorcycle to a destination or a maintenance point to repair the tires.

The invention belongs to the technical field of electric power first-aid repair, and discloses an intelligent allocation method for a power first-aid repair team, and the method comprises the steps of dividing a region where natural disasters are predicted to occur into a plurality of standard grids, and collecting the meteorological information, geographic information and power grid information corresponding to each standard grid; predicting the number of power failure users in each standard grid in combination with a random forest algorithm; performing risk level grading on each standard grid, and screening the standard grids with the risk level higher than a preset risk level as emergency repair grids; and obtaining an allocation scheme according to the obtained first-aid repair grid and a preset decision model. The invention has the beneficial effects that the possible power failure number of the area is predicted according to the collected weather information, geographic information and power grid information of the area where the natural disaster possibly occurs, a feasible first-aid repair team allocation scheme is formulated in advance, response can be made in the first time after the natural disaster occurs, secondary loss is avoided, and the normal life of people is ensured.

The invention relates to the technical field of power equipment protection, more particularly to an intelligent low-voltage flood-prevention water level control system comprising a GSM flood-prevention protection remote management master station, a plurality of water level monitoring and warning devices being connected with the GSM flood-prevention protection remote management master station and being used for monitoring water levels, a flood-prevention electric circuit breaker and a plurality of short message transceiving modules. The GSM flood-prevention protection remote management master station is able to receive tripping signals from the water level monitoring and warning devices and control the flood-prevention electric circuit breaker to be separated and released. According to theinvention, quick response is carried out and power supply is cut off quickly when a flood arrives so as to prevent secondary losses caused by the power supply; because the separation and releasing, caused by the flood, of the flood-prevention electric circuit breaker are locked and the state is kept, remote opening or closing is forbidden and the operation can not be carried out until delocking isdone, so that re-opening and misoperation-proof closing operations are prevented; and when closing is needed after the flood recedes, the closing of the flood-prevention electric circuit breaker is controlled remotely to guarantee the personal safety.