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907results about How to "Clear process" patented technology

Different aspects of electronic pens

A miniaturized optical component (36) for a camera pen has the shape of a plate and comprises at least two non-overlapping radiation-transmitting sections: an imaging section (36′) configured to transmit an image of an object plane, and an illuminating section (36″) configured to transmit illuminating radiation towards the object plane. Passive optical elements may be incorporated in the component to provide the imaging and illuminating sections, e.g. an image-generating surface structure, an illumination-controlling surface structure, a radiation filter, a stray light shield, and an aperture stop. These optical elements may be provided as well-defined surface structures and layers on a plate substrate. The optical component may be manufactured as a wafer structure comprising a plurality of these optical components. A camera housing (22) may be provided with a first mounting structure (56) for the optical component (36), a second mounting structure (64) for an image sensor (11) configured to detect the image, and a third mounting structure (66) for a radiation source (13) configured to generate the illuminating radiation. An elongate guide pipe (24) for receiving a stylus (8) may be received in and joined to an elongate recess (28) in an exterior wall portion of the camera housing (22).
Owner:ANOTO AB

Scanner with coupon validation

A point of sale (POS) bar code scanner such as in common use in retail stores includes provision for reading bar coded redemption coupons (or other bar coded documents redeemable for value) in a manner secure from a human operator. Integration of functions between the POS scanner and the coupon reader varies with different embodiments described. Through software associated with bar code decoding logic, a comparison is made between information on a validation coupon and information on items presented for purchase, and a decision is made as to whether the redemption coupon is valid and redeemable in this transaction. In one embodiment, the bar code scanner simply receives the redemption coupon face down on the product scanner window, and integrated decode logic of the scanner identifies the bar code as belonging to a redemption coupon, then makes the comparison and validation of the coupon for the particular transaction. In some embodiments of the invention, the POS product scanner has a special beam exit window through which the scanning beam is diverted when it is signified that a redemption coupon is to be read, with a coupon reading scan pattern. After validation the coupon may be punched or otherwise cancelled, and/or sent to a secure container. Several types of securing devices are disclosed, for preventing subsequent use of redeemed coupons.
Owner:PSC SCANNING INC

Method for constructing engineering pile by combining rotary drilling rig with manual pile base chambering

The invention relates to a method for constructing an engineering pile by combining a rotary drilling rig with manual pile base chambering, which comprises the following steps: (1) preparation work before construction, including field leveling; (2) pile lofting; (3) pile casing embedding; (4) rig installation and rotary drilling; (5) manual pile base chambering; (6) rotary drilling drill quality detection; (7) reinforcement cage manufacturing; (8) reinforcement cage installation; (9) preparation before casting, mainly including hole cleaning, final hole acceptance check, and pump concrete casting quality safeguard measure; and (10) concrete casting, mainly including guide pipe installation, concrete casting and sampling for test and pile forming. In the method for constructing the engineering pile by combining the rotary drilling rig with the manual pile base chambering, the high efficiency of the rotary drilling rig is fully utilized, and the manual pile base chambering is utilized, the advantages of the rotary drilling rig and the manual pile base chambering are combined to make up the defects of the rotary drilling rig and the manual pile base chambering. The construction steps are detailed; the process flow is clear and definite; the construction quality of the engineering pile is ensured through an effective detail measure; the construction process of the rotary drilling rig and the process step of the manual pile base chambering are combined as a whole to realize the effective allocation of a construction field, a construction machine and construction time; and when the construction quality is ensured, the construction efficiency of a digging pile is greatly increased, thereby, the construction time of the engineering pile can be greatly saved, and the construction period requirement of the project is met.
Owner:CHINA CONSTR SECOND ENG BUREAU LTD

Fast decoupled flow calculation method for power systems

The invention discloses a fast decoupled flow calculation method for power systems, which comprises the following steps of: inputting original data and initializing voltage; forming an admittance matrix; forming correction equation coefficient matrixes B' and B'' and performing factor table decomposition; performing P-theta iteration, and correcting a voltage phase angle; performing Q-V iteration, and correcting voltage amplitude; judging whether the iteration is converged; and calculating node power and branch power. The method requires that the P-theta iteration and the Q-V iteration are all converged in the same iteration and the iteration process is finished, so that the algorithm frame is simpler, and the flow is clearer. The sparse matrix technology is not adopted, so the matrix elements are convenient to access and calculate, and the programming is simple; the correction equation coefficient matrixes are stored according to n order, number change of nodes is avoided, and the programming difficulty is reduced; and the calculation amount is reduced through reasonable logic judgment, the calculation speed is obviously improved and the requirement of scientific research can be completely met. The fast decoupled flow calculation method also can process power systems with a plurality of balance nodes.
Owner:DALIAN MARITIME UNIVERSITY

Continuous trajectory planning transition method for robot tail end

The invention discloses a continuous trajectory planning transition method for a robot tail end. The method comprises following steps that firstly, a first line segment and a second line segment which need to be subjected to continuous trajectory planning transition are determined, demonstration points of a connecting line segment are determined, and the transition distance between the demonstration points and the first line segment and the transition distance between the demonstration points and the second line segment are determined; secondly, according to the transition distance between the demonstration points and the first line segment, first transition joint points on the first line segment are determined, and according to the transition distance between the demonstration points and the second line segment, second transition joint points on the second line segment are determined; and thirdly, an amplitude coefficient, a phase coefficient and a speed zooming coefficient are calculated in a coordinate axis, and the amplitude coefficient, the phase coefficient and the speed zooming coefficient are brought into a limited term sine position planning function to determine a transition curve expression between the first transition joint points and the second transition joint points. The algorithm flow is clear, the calculating time is greatly shortened, and the complex degree of a robot control system is reduced.
Owner:HANGZHOU WAHAHA PRECISION MACHINERY

Construction process and equipment for downhole impacting high-pressure jet grouting pile

The invention relates to a construction process and equipment for a downhole impacting high-pressure jet grouting pile. An impactor is used for generating certain vibration impact effect in an impacting and sinking process, the impactor is driven by high-pressure air, and damage effect is produced to a soil body structure by virtue of vibration and high-pressure air; meanwhile, auxiliary soil body cutting effect of a high-pressure water jet is utilized at the upper part of the impactor; cutting damage to soil body by high-pressure water, gas and vibration is used for providing conditions for subsequent concrete spraying, under high frequency vibration of a downhole impactor, high-pressure water, high-pressure gas and high frequency vibration generate a linkage mechanism to rapidly soften the soil body at the periphery, the soil body is in a plastic flow state, after a high-pressure pump is transformed to spray high-pressure concrete, the soil in the plastic flow state is fully mixed with concrete, and a cement-soil pile with larger diameter and uniform concrete is formed. In the invention, under the high frequency vibration of the downhole impactor, the high pressure water, the high pressure gas and the high frequency vibration generate the linkage mechanism, diameter of a finished pile is larger, and strength of a pile body is higher.
Owner:BEIJING RONGCHUANG GEOTECHNICAL ENG CO LTD

Experimental system used for simulating severe accident conditions of containment of nuclear power plant, and implementation method thereof

The invention discloses an experimental system used for simulating severe accident conditions of the containment of a nuclear power plant and an implementation method thereof to overcome the problem that comprehensive simulation of severe accident conditions of the containment of a nuclear power plant cannot be realized in the prior art. The experimental system comprises an experimental container, a first pressure sensor arranged in the experimental container, a data acquisition system, an exhaust pipeline, an air supply system, a hydrogen supply system, a spray system, an aerosol supply system, a cable combustion product supply system, a water vapor on-line supply system and at least four sampling pipelines, wherein the data acquisition system is connected with the experimental container through multipoint thermocouples; the exhaust pipeline, the air supply system, the hydrogen supply system, the spray system, the aerosol supply system, the cable combustion product supply system, the water vapor on-line supply system and the at least four sampling pipelines are connected with the experimental container; and the aerosol supply system is connected with the spray system. The experimental system provided by the invention has a reasonable structure, can authentically and comprehensively simulate severe accident conditions in the nuclear power plant and carries out hydrogen elimination performance testing on a passive hydrogen recombiner on the basis of simulation results; moreover, testing results approximately represent actual working conditions, so good reference standards are provided for researching and designing of the recombiner.
Owner:MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS +2
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