32results about How to "Expand the applicable area" patented technology

The invention discloses a virtual polar area method based on a horizontal geographic coordinate system, which is used to solve the technical problem of poor applicability of the existing virtual polar area method. The technical solution is to keep the attitude matrix, velocity and altitude information in the lateral geographic system unchanged, and reconstruct the polar position trajectory by integrating the lateral velocity after compensating the ellipsoid correction coefficient; In the horizontal geographic coordinate system, the local earth rotation angular rate and gravity acceleration are deducted, and the earth rotation angular rate and gravity vector of the virtual polar region are superimposed to complete the polar region reconstruction of inertial sensor data. The present invention reconstructs the polar area trajectory data and inertial sensor data in the horizontal geographic coordinate system, so that the motion characteristics of the carrier relative to the local horizontal plane remain unchanged, the applicable area is enlarged, and it can be applied to any position on the earth's surface except the horizontal pole; The spherical approximation is avoided by the ellipsoid correction coefficient, and the modeling accuracy is improved.

The invention discloses a combined cooling air-conditioning system of an indirect evaporation chiller and a mechanical refrigeration chiller. A first-stage and a second-stage surface heat exchangers and a blower are arranged in order in a casing of an air processor from an air inlet to an air outlet, a water outlet pipe of the indirect evaporation chiller is connected to a water inlet of the first-stage surface heat exchanger of the air processor, a water outlet pipe of the first-stage surface heat exchanger is connected with a cooling water inlet of a traditional low-temperature chiller, a cooling water outlet of the traditional low-temperature chiller is connected with a water inlet of the indirect evaporation chiller, a chilled water outlet of the traditional low-temperature chiller is connected to a water inlet of the second-stage surface heat exchanger, a water outlet pipe of the second-stage surface heat exchanger is connected to an indoor tail-end water inlet located in an air-conditioning room, a water outlet pipe at the tail end in the air-conditioning room is connected with a chilled water inlet of the traditional low-temperature chiller, and an exhaust outlet of the blower leads to the air-conditioning room through a blast pipe. The combined air conditioning system not only can be used in dry heat regions but also can be used in moist heat regions, makes the best of refrigeration capacity of dry air energy, realizes the cascade utilization of energy, reduces the installed capacity and electric power load of equipment, improves the fresh air amount of the air-conditioning system, and improves the indoor air quality.

The invention relates to the technical field of irrigation-free haloxylon ammodendron planting region protection, in particular to a structure capable of improving the snoewmelt infiltration rate of an irrigation-free haloxylon ammodendron planting region and a use method thereof. The structure capable of improving the snoewmelt infiltration rate of the irrigation-free haloxylon ammodendron planting region comprises a sand hill with a slope, wherein the sand hill with the slope comprises a slope bottom, a slope top and a slope middle. According to the structure capable of improving the snoewmelt infiltration rate of the irrigation-free haloxylon ammodendron planting region and the use method thereof, water content of soil layers with underground sand layer depth of 30-60cm in the slop middle and slop top regions of the sand hill in the irrigation-free haloxylon ammodendron planting mode can be improved, the growth requirements of haloxylon ammodendron are met, the survival rate of haloxylon ammodendron is improved, the defect that only the slope bottom and flat land parts of a whole haloxylon ammodendron planting region have high survival rate can be avoided, a beneficial technical support is supplied to large-scale recovery and construction of haloxylon ammodendron plant forest, the sand binding effect of the sand binding plants is improved, the application range of an irrigation-free haloxylon ammodendron planting technology is widened, and the structure has favorable application prospect.

The invention discloses an unpowered loopback auxiliary power supply and self-walking device for locomotives. The device comprises two schemes; in the first scheme, the device comprises a boosting type DC / DC module, a bucking type DC / DC module, a single-phase inverter module, a three-phase inverter module, a traction inverter module and a controller; and in the second scheme, the device comprisesa bidirectional DC / DC primary module, a bidirectional DC / DC secondary module, a single-phase inverter module, a three-phase inverter module, a traction inverter module and a controller. According to the device, a traction motor can be controlled to carry out regenerative braking when being dragged to run, so as to generate power and generate a certain life power supply capacity, so that the operators can watch over on locomotives confidently and securely so as to smoothly complete the locomotive repair / loopback tasks; and DC400V or higher high-power DC power supply can be provided outside thelocomotives to realize shunting operations under speed limiting requirements.

The invention discloses a sunlight greenhouse, which is enclosed by two side walls on east and west faces and a rear wall on the north side. A front slope surface and a rear slope surface are formed and are provided with a plurality of transverse or longitudinal bearing lines or bearing beams; transparent thermal insulation layers are laid on the bearing lines or bearing beams of the front slope surface; and transparent foam material layers are arranged on the bearing lines or bearing beams of the rear slope surface. The rear wall and the two side walls are hollow wall bodies, and bottled or bagged black water or water packaged by black bottles or black bags is arranged in the hollow wall bodies. By the sunlight greenhouse, the land utilization rate can be greatly improved; light can penetrate through the rear slope surface in the daytime, so that illumination of north plants in the greenhouse is improved; thermal insulation objects are needed to be covered on south and north sides inthe greenhouse at night in an inner thermal insulation mode or an outer thermal insulation mode; a curtain rolling machine, and thick and fine curtain rolling shafts which are arranged at intervals are arranged on a ridge part; and nighttime thermal insulation objects on the south side are rolled on the coarse section of an output shaft and nighttime thermal insulation objects on the north side are rolled on the fine section of the output shaft through ropes.

The invention relates to a hollow environmentally-friendly cut block which comprises a plurality of side wall plates, wherein each side wall plate is provided with an inner surface, an outer surface, a top surface and a bottom surface; the plurality of side wall plates are fixedly connected together in sequence so as to form the hollow environmental-friendly cut block; a cavity is defined by the inner surfaces of the plurality of side wall plates; the cavity is positioned at the middle of the hollow environmentally-friendly cut block; a brick top surface is formed by connecting the top surfaces of the plurality of side wall plates; a brick bottom surface is formed by connecting the bottom surfaces of the plurality of side wall plates; and positioning blocks are fixedly arranged on the brick top surfaces and the brick bottom surfaces respectively.