253results about How to "Practical and reliable" patented technology

A network for a cellular communication system comprises access points (105-109) supporting cells within a region (113). Each access point (105-109) has an individual proxy address of a proxy address space which is a local address space of an address proxy (101) and a common network address of a network address space which is a network wide address space. A gateway access point (103) covers an entry point to the region (113) and detects a remote station entering the region. It then determines an access point (105) in the region to which the remote station is handed over and transmits a binding message to the address proxy (101) with an indication of the access point (105). In response to receiving the binding message, the address proxy (101) establishes a binding between the common network address and the proxy address of the access point (105). Data for the remote station is then forwarded to the access point (105) using the binding.

The present invention provides a submount that allows a semiconductor light-emitting element to be attached with a high bonding strength.

A submount 3 is equipped with a substrate 3 and a solder layer 8 formed on a primary surface 4f of the substrate 4. The density of the solder layer 8 is at least 50% and no more than 99.9% of the theoretical density of the material used in the solder layer 8. The solder layer 8 contains at least one of the following list: gold-tin alloy; silver-tin alloy; and lead-tin alloy. The solder layer 8 before it is melted is formed on the substrate 4 and includes an Ag film 8b and an Sn film 8a formed on the Ag film 8b. The submount 3 further includes an Au film 6 formed between the substrate 4 and the solder layer 8.

Application of rechargeable battery 1 charging voltage is determined by a signal applied to a battery-connect terminal 94 from external electrical equipment. In the case of charging voltage application, the current detection section is judged as malfunctioning when the maximum battery cell 1a, 1b, 1c voltage detected as a time series rises from a voltage below 3.8V (the second voltage) to a voltage above 4.1V (the first voltage) even though rechargeable battery 1 charging and discharging current detected as a time series is (only) greater than −5 mA and less than 20 mA.

The invention provides an air conditioner heat pump hot water unit and a working method thereof, the performance is optimized, waste heat generated by an air conditioning unit can be recycled, and a heat pump principle with high energy efficiency is utilized to produce hot water so as to save energy, protect environment and be favorable for realizing multi-mode and multifunctional control. The air conditioner heat pump hot water unit comprises a control system, an air conditioning outdoor unit, an indoor unit, a water heater and a plurality of refrigerant pipelines connected among the air conditioning outdoor unit, the indoor unit and the water heater, wherein the water heater comprises a water tank, a hot water generator and a water pipe; the air conditioning outdoor unit comprises a compressor, a heat exchanger, a throttling device and a refrigerant pipeline control device, and the compressor, the heat exchanger, the throttling device and the refrigerant pipeline control device are all connected via the refrigerant pipeline; the refrigerant pipeline control device of the air conditioning outdoor unit comprises a four-way valve A, the port 1 of the four-way valve A is connected with the hot water generator via the refrigerant pipeline; and each indoor unit is provided with a four-way valve, and the four-way valve arranged on the indoor unit is connected with the heat exchanger of the indoor unit via the refrigerant pipeline.

There is provided a gas barrier clear film 10 as a polymer substrate that is flexible, is light, is free from cracking, can be bent, has a high level of heat resistance, is excellent particularly in gas shielding properties, and can be used as an alternative to glass substrates.

The gas barrier clear film comprises: a clear resin base material film 11 having a coefficient of linear expansion of 15 to 100 ppm/K and a glass transition temperature Tg of 150 to 300° C.; and a first clear inorganic compound layer 13A, a sol-gel coat layer 15A, and a second clear inorganic compound layer 13B provided in that order on the clear resin base material film 11. The second clear inorganic compound layer 13B has an Ra (average roughness) value of not more than 5 nm and an Rmax (maximum roughness) value of not more than 80 nm.

The invention discloses an MTPA curve fitting method for an embedded permanent magnet synchronous motor. The method includes the steps of solving a permanent magnet linkage of a motor rotor accordingto the motor zero-load counter electromotive force and a rotating speed measured through an experiment, controlling q-axis current and d-axis current, measuring the experimental data of the corresponding relation between the q-axis inductance and the q-axis current, and between the d-axis inductance and the d-axis current, obtaining plurality of equal-interval torque values according to the calculation formula of the torque and q-axis current meeting the MTPA condition and through giving the q-axis current, obtaining the d-axis current under the corresponding torque according to the q-axis current and d-axis current relation meeting the MTPA condition, and fitting a MTPA curve of the torque and q-axis current and d-axis current relation based on a plurality of obtained equal-interval torque values of zero-to-maximum torques. The method aims at solving the problems that a formula calculation method is not high in precision, the operation of an experiment test method is complicated. An embedded permanent magnet synchronous motor MTPA curve comprehensive drawing method and a control system which can meet calculation and precision requirements are provided.

A three rod bundle confined inside a sleeve is constructed as a light guiding fiber mechanical splicing device which is stiff, strong and precise, with no moving parts. The design also applies to splicing fibers to pre-polished optical connectors through a built-in model of this innovative mechanical splicer. Applying the Soddy circles formula and using a bin approach assists in deriving the exact rod sizes needed and sleeve bore size to accommodate the three-rod bundle, so that this apparatus can be properly designed to guide any size of light guide fibers and studs with minimum clearance. Rods of varying diameters are sorted into bins and chosen based upon the aperture desired, thus eliminating the need for tight tolerance of the diameters of the three rods. This unique design allows for construction of a precision virtual hole of very long depth, which enables two optical fiber studs to butt against each other with a core to core misalignment of less than 1 um for single mode fiber optics cables. Unlike prior arts, the sleeve holding the rods eliminates the need for any clamping mechanism to tighten a loose bundle, which induces undesirable mechanical strain. It also eliminates the need to use a fiber clamp to force the fiber studs against dimensionally unstable V or U groove alignment features which also induce undesirable mechanical strain. A fiber holder is also presented to depict the usefulness of this invention on hold fiber in position.

For steering a vehicle around obstacles, proceeding along a path from a starting position to an end position, the path including linear sub-paths which are defined by an increment η and a steering angle δ, a method includes: a) determining a maximum steering angle range and a maximum and a minimum increment range; b) determining the present distance e_P from the end position, the target angle θ_O, and the angle difference e_θ between the present vehicle angle and the target angle; c) performing an optimization method for ascertaining a sub-path by minimizing the value of a cost function l_O assigned to the sub-path; d) determining the new position by adding the ascertained sub-path to the present position; and e) repeating steps (b) through (d) until the end position is reached.

Two-direction pre-tensioned prestressing ballastless track slab movable tensioning equipment comprises a side pre-locking beam, a side tensioning beam, an end pre-locking beam and an end tensioning beam; the side pre-locking beam and the side tensioning beam are assembled on two walking beams through a pair of side beam linear guide rails, and each walking beam is provided with wheels matched with a running rail, walking guide wheel sets, a wheel speed reduction motor and side beam advancing and retreating oil cylinders; portal frames are arranged at the two ends of the walking beams, and a lifting frame, a lifting frame lifting oil cylinder and a lifting frame lifting guide device are assembled on each portal frame; and the end pre-locking beam and the end tensioning beam are assembled on the lower faces of the lifting frames through a pair of end beam linear guide rails, and end beam advancing and retreating oil cylinders are arranged on the lifting frames. According to the equipment, the production preparation period can be effectively shortened, the engineering construction cost is reduced, industrial pollutions are avoided, and meanwhile a steel mold fixed mounting production manner facilitates simplifying of a mold structure, reduction of cost, improvement of precision and reduction of occupied areas and working energy consumption of production equipment.

A reinforcing method for U-bar hoop formworks of a large-section frame column mainly comprises the implementation steps of 1, formwork design and checking calculation, 2, formworks arrangement, numbers giving and piling; 3, U-bar hoop processing, 4, pull screw manufacture, 5, column axis determination and elevation measurement, 6, column root formwork processing, 7, quality inspection, 8, erection of a support frame body, and 9, installation of the column formworks. The reinforcing method for U-bar hoop formworks of a large-section frame column fully utilizes rigidity and strength of U-bars, effectively controls section deformation of the frame column, avoids influence on building appearance quality caused by holes formed by penetrating the penetrating pull screws through components, solves the quality problems of jig displacement, formwork expansion, slurry leakage and the like to some extent, and meanwhile reduces use quantity of fasteners. All the construction materials can be reused, and cost is saved. The reinforcing method for U-bar hoop formworks of the large-section frame column is simple to operate and simple and easy in procedure, not only effectively shortens construction periods, improves quality and saves the cost, but also is simple in process, practical and reliable.

A variable-speed magnetic coupling having a radially movable magnet, comprising a drive disc assembly (I), a driven disc assembly (II), and a speed adjusting device assembly (III). Relative rotation of a speed adjustment sleeve (15) with respect to a drive shaft (16) is achieved by means of contact and fitting of a cylindrical pin (20) with respect to a vertical recess on an inner wall of the drive shaft and to an inclined recess on an inner wall of the speed adjustment sleeve. The speed adjustment sleeve is connected to a circular slotted disc (18) by means of a screw. A permanent magnet (10) is attached to a permanent magnet bearer (9) and inserted into a rectangular through hole of a circular frame (13), and a radial movement of the permanent magnet is enabled by means of a cam and groove sliding block mechanism consisting of the circular slotted disc, the circular frame, the permanent magnet bearer, and the permanent magnet. By moving a movement block (21) to drive the movement pin (20) to slide in the recesses of the drive shaft and the speed adjustment sleeve and then drive the speed adjustment sleeve to rotate, the present invention enables a radial movement of the permanent magnet, and then changes a coupling area or an air gap distance between the permanent magnet and conductive rings (8, 11) on two sides, thus changing a magnetic flux density of the air gap, and accordingly enabling speed adjustment.

The invention relates to an automatic distribution machine for deoxidant, which comprises a working platform, a central controller, a blanking mechanism, a material conveying mechanism and an adsorption separation mechanism, wherein the blanking mechanism comprises a hopper and a belt transportation mechanism which are arranged on the working platform; the belt transportation mechanism comprises a belt; the hopper is provided with an upper port and a lower port, and is positioned above the belt transportation mechanism; the lower port of the hopper is shielded by the belt; the lower part of the side wall of the hopper is provided with a discharge port; the belt is positioned under the discharge port; the material conveying mechanism is a tray which is driven to rotate by a third motor; an output end of the belt transportation mechanism is arranged above the tray; the adsorption separation mechanism comprises an adsorption rotary table and the material conveying mechanism arranged under the adsorption rotary table; the adsorption rotary table is rotatablely arranged on the working platform and is driven to rotate by a driving mechanism; and the adsorption rotary table has magnetism. The automatic distribution machine for deoxidant is simple in structure, high in degree of automation, practical and reliable, improves the production efficiency, saves the labor force and reduces the packaging and production cost.

The invention relates to a machine integrating the functions of filling pads and closing-up of a shotgun shell case, which belongs to the field of manufacturing of shotgun shells. Usually, the shotgun shell case is made of plastic material, and in the production process of shotgun shells, one end of the plastic shell case is closed and then pads are filled. The machine is special equipment integrating machinery, electrification and pneumatics, which realizes automation of filling pads and closing-up of the shotgun shell case. The equipment comprises an AC motor, a speed reducer, a driving part and a machining device, and the two procedures of filling pads and closing-up are completed by a slideway type roll feeding manner, wherein the machining device is a six-station turntable, and five stations of the turntable work at the same time at each rhythm to feed materials, flare, fill pads, close up and return materials. After being molded, the workpiece manufactured by the equipment has high precision and reliable practicability, and compared with the traditional machine, the machine provided by the invention increases the production efficiency by five times.

The invention discloses a device and a method for nondestructive measurement of anchor rod length; the device comprises a single chip, a measurement frequency signal generator, an impedance match circuit, and a probe in contact with an initial end of a measured anchor rod; an output end of the impedance match circuit is connected with an A/D converter through a peak value detection circuit, an output end of the A/D converter is connected with an input end of the single chip; a measurement probe is directly contacted with the initial end of the measured metallic anchor rod to send a test signal; the test signal is sent into the measured anchor rod from the initial end thereof till to a terminal of the measured anchor rod, then is returned to the initial end of the measured anchor rod from the terminal of the measured anchor rod, a returned electric signal is sent back to a measurement instrument through the probe, a frequency node capable of generating a voltage minimum value can be measured by changing an output frequency of the test signal; therefore, the length of the measured anchor rod can be computed; the device can perform online nondestructive measurement on the anchor rod length; and the device is simple in structure, convenient for operation, rapid and accurate in measurement, practical, reliable, small in volume and low in power consumption.

The present invention relates to a method for the payment of a service and/or a product with respect to a vehicle and a parking location, wherein said vehicle is managed by a user, wherein said vehicle comprises a vehicle device, wherein said method comprises amongst other things the following steps: the arrival of said vehicle at said parking location; the transmission of a session request comprising a coordinate to a back-end infrastructure by said vehicle device; the receipt of an availability and/or a price indication of said parking location by said vehicle device of said back-end infrastructure; if said parking location is available, the initiation of a parking session belonging to said service and/or said product.

The invention discloses an automatic control and alarm system for molten steel liquid level in the crystallizer of a continuous casting machine, comprising a liquid level detector installed on the crystallizer, the liquid level detector is electrically connected with a liquid level signal processor, and the liquid level signal processor The system is powered, the liquid level signal processor is electrically connected to the PLC control system, and the PLC control system is also electrically connected to the buzzer alarm, the tension leveler control system and the picture display. The invention has the advantage of being able to automatically control the molten steel level in the crystallizer of the continuous casting machine.