43results about How to "No change in design" patented technology

The invention discloses an anti ice vibration method of above-water platform and relative special device, which comprises: mounting a anti ice vibration of above-water platform in the water near the legs of above-water platform; said anti ice vibration device contains one ice-breaker prick and a vibration insulated damping device between the legs and the ice-breaker prick. With said invention, the ice force load of marine platform can be damped by said device to force on the platform, and via selecting parameters, it can be effectively damped. The invention has simple process, without changing former structure of platform, which can be directly mounted on the former platform. In addition, a sealing device is arranged between the legs and the inner wall of ice-break prick, to avoid seawater eroding inner space, to improve its service life.

The invention belongs to data collecting technology field of electron instrument meter. Pointing to the data collecting mode of point to multi-point, the invention is the automatic searching of the communication address of the instrument and the meters. The method is: the primary station uses broadcasting order addressing, the slave station uses random delay mode to replay; after the slave station receives the addressing order, there generates an integer less than a set integer T in random, the T is multiplied by a fixed time interval A, the result is the reply delay time of the slave station; after the primary sends out the addressing order, in Tí‡X time, it is in state of receiving data, completes part of the addressing task of the slave station; the primary station sends out order to the slave station which is addressed, thus the slave station doesn't response the broadcasting addressing order in the time DT; repeats the process, it can complete the addressing task to the slave station, the stop label is: after several times of sending addressing order, the slave station has no response. The invention can realize automatic addressing quickly, the invention is simple and convenient.

The utility model discloses a method of achieving on-board imprinting of the processor system BOOTROM; wherein, the steps comprise: connecting the imprinting device with an imprinting circuit with the imprinting jig to the target circuit on the imprinting target single board; enabling the replacement circuit of the imprinting circuit while disenabling the target circuit through switching the circuit; the target system starting from the replacement circuit, enabling the target circuit while disenabling the replacement circuit through switching the circuit; the target system reading the imprinting mapping into the target circuit. The method of the utility model can remove the jack of BOOTROM directly and achieve the BOOTROM on-board imprinting after the inserted BOOTROM is welded to the single board directly, which has the advantages of not changing the original design, not adding the design cost of the software and hardware of the single board, and having easy operation.

The invention provides a printed circuit board (PCB) wiring method and apparatus, and a PCB. The method comprises the following steps: determining the linewidth and the line spacing of a difference signal line; according to the linewidth and the line spacing of the difference signal line, respectively arranging the difference signal line and a single-end signal line on the PCB, and setting that the linewidth of the single-end signal line is not smaller than the linewidht of the difference signal line; arranging an arc connection signal line at a connecting position between the single-end signal line and the difference signal line, respectively connecting the two ends of a center line of the arc connection signal line with a center line of the single-end signal line and a center line of the difference signal line in a tangent mode, setting that the linewidth of the arc connection signal line is a linewidth ranging from the linewidth of the single-end signal line to the linewidth of the difference signal line, and respectively matching the linewidths of the two ends of the arc connection signal line with the linewidth of the single-end signal line and the linewidth of the difference signal line. Through such a technical scheme, the problem of signal integrity caused by impedance discontinuity between the single-end signal line and the difference signal line is solved.

The invention provides a method and a device for grabbing various types of circuit boards. The method comprises the steps that a first sub-gripper of an integrated mechanical gripper is used for gripping a first circuit board, wherein the integrated mechanical gripper is provided with a plurality of sub-grippers; the grabbed first circuit board is placed into a transfer platform; the first circuitboard is grabbed from the transfer platform by using the second sub-gripper, the first circuit board is turned over, and the overturned first circuit board is placed into a board splitting machine tobe split into at least one second circuit board, wherein the type or size of the second circuit board is different from the type or size of the first circuit board; and the second circuit board is grabbed from the board splitting machine by using the third sub-gripper. Obviously, the integrated mechanical gripper which is provided with the multiple sub-grippers capable of gripping the circuit boards of different types or sizes is designed so that the labor or machine cost can be reduced while the problem of simultaneous feeding and discharging of circuit boards of various types is solved.

The invention relates to a cracking control method for SLM (Selective Laser Melting) forming of a strip-shaped or sheet-shaped structural member. The method comprises the following steps of: 1, designing the printing direction of the strip-shaped or sheet-shaped structural member, and designing an auxiliary support to meet the forming requirements except cracking; 2, designing multi-claw type supporting structures at the two ends of the strip-shaped or sheet-shaped structural member in the length direction by adopting three-dimensional cartographic software; 3, designing a through hole in at least one of a main claw and an auxiliary claw; 4, designing skirt steps below the strip-shaped or sheet-shaped structural member and the multi-claw type supporting structures; and 5, carrying out manufacturability detection on the structural member to be printed, and slicing, layering and printing after the manufacturability requirement is met. According to the cracking control method for SLM forming of the strip-shaped or sheet-shaped structural member provided by the invention, the characteristics of increasing the connecting area and relieving concentrated stress and stress release can be achieved through the multi-claw type supporting structures, cracking of the strip-shaped or sheet-shaped structural member in the selective laser melting forming process is well restrained, and deformation of the strip-shaped or sheet-shaped structural member is reduced.

This is an ice load vibration isolation method for ocean platform. Wrap an elastic vibration isolation device outside of the base pier, which is floatable along the pier. Ice load forced on the pier will be attenuated by the device.

The invention relates to locomotive traction converter network voltage fluctuation control, in particular to a locomotive traction converter network voltage fluctuation composite detection control device and a control method thereof. The invention provides the locomotive traction converter network voltage fluctuation composite detection control device and the control method thereof to solve the problems and defects existing in an existing locomotive traction converter network voltage fluctuation detection control method. The method is realized through four-quadrant rectifier control software.The voltage outer loop of the control device is changed into a sliding mode controller from a traditional PI controller, and a multiple control algorithm is further added, so that on one hand, the network voltage jump quantity can be quickly controlled when network voltage fluctuation is detected, and on the other hand, the pollution of alternating-current side current harmonics to a power grid isreduced. The robustness and the anti-interference capability of a control system are improved; faults of a locomotive high-voltage system, a traction system, an auxiliary system and the like cannot be caused when network voltage fluctuation occurs; thus safe and stable operation of a train is guaranteed.

The invention relates to a multifunctional intelligent information elastic cushion plate comprising an elastic matrixes (41) and elastic bodies (42). Sensor chips (51) and flexible signal lines (71) are arranged in the elastic matrixes (41). The sensor chips (51) are connected with an external signal collecting and processing system through the flexible signal lines (71). The sensor chips (51) explore the situation that the multifunctional intelligent information elastic cushion plate produces a strain signal after bearing static pressure, and/or produces an extra dynamic strain signal after bearing extra positive pressure or extra negative pressure, and the strain signal and/or the extra dynamic strain signal are/is output to the external signal collecting and processing system through the flexible signal lines (71) to be analyzed and processed. Compared with the prior art, the working state and quality of railway parts can be known timely and comprehensively, the dynamic working state and the dynamic response level of a railway under the condition of being loaded are known, the operation safety of the railway is guaranteed, and the multifunctional intelligent information elastic cushion plate has the advantages of simple structure, fast installation, convenient adjustment and the like.

The invention discloses a vehicle, such as a heavy vehicle, e.g. a truck, comprising a cabin (1) having a front side (2) including a windshield (3) and edge regions (4), a roof (5), and driving means including a cooling system, where said vehicle is provided with at least one auxiliary cooling member (6) comprising at least one cooling element (7), and an air intake (8), where at least a part of the cooling member is protruding from the front side (2) to utilize at least a part of the general airflow running substantially parallel with the front side (2) when the vehicle is moving forward. In a preferred embodiment, at least one exterior panel (9) is mounted to cover the cooling elements (7) of the cooling member (6), and it is preferred that this exterior panel (9) is a sun visor (10) or dirt deflector (11). Hereby, there is achieved significant additional cooling without altering the overall appearance and design of the truck and thus also keeping within the size requirements of the vehicle.

The invention relates to a refluxing improved rectifying tower for 2-cyanopyrazine. The refluxing improved rectifying tower comprises a tower body provided with an extraction hole, a plurality of pieces of tower plates and a refluxing system, wherein the refluxing system comprises an extraction pipe connected with the extraction hole, a heat exchanger connected with the extraction pipe and a refluxing main pipe connected with the heat exchanger; each tower plate comprises a hollow shell body, a plurality of sieve holes which are formed in the shell body and penetrate through the shell body, and a plurality of spraying holes which are formed in a non-sieve-hole region of the bottom surface of the shell body; a refluxing auxiliary pipe, which is communicated with the inner part of the shellbody and extends out of the tower body, is arranged on a side face of each tower plate; each refluxing auxiliary pipe is communicated with the refluxing main pipe and an auxiliary pipe valve is arranged on a pipe body; each sieve hole is internally provided with a sealing circular ring which is coaxial with the sieve hole and is fixedly connected with the shell body; a main pipe valve is arrangedat the tail end of the refluxing main pipe. According to the refluxing improved rectifying tower for the 2-cyanopyrazine, the characteristic that positions of the different tower plates correspond todifferent separation efficiency can be sufficiently utilized, so that the purification effect of single-time refluxing is remarkably improved and the refluxing time needed for reaching the effect is effectively shortened, and furthermore, the whole efficiency of refluxing operation is greatly improved.

The invention relates to a locomotive four-quadrant converter load abrupt change control method, in particular to a locomotive four-quadrant converter load abrupt change composite detection and control method. The locomotive four-quadrant converter load sudden change composite detection and control method is achieved through a four-quadrant control method, a voltage outer loop is changed into a sliding mode controller from a traditional PI controller and matched with a chopper controller; on one hand, an existing main circuit is not changed, and extra hardware circuit design is not needed; andon the other hand, the intermediate voltage jump quantity can be quickly controlled when sudden load change is detected, so that the stability of the intermediate voltage is ensured, and the robustness and the anti-interference capability of the control system are improved. When the abrupt load change occurs, the chopper control is matched with four-quadrant control, so that the stability of theintermediate voltage can be ensured, the fault of the traction converter cannot be caused, and the safe and stable operation of a train is ensured.

The invention relates to a combined wind driven generator, which comprises at least two wind driven generators which are arranged on a same rotating shaft or a plurality of rotating shafts, wherein each wind driven generator is connected with a controller; and the controllers are respectively connected with a storage battery, a light-controlled light source and a time-controlled light source. Compared with the prior art, the combined wind driven generator has the advantages of simple structure, low development cost, convenience in maintenance and the like and can be used for upgrading the conventional low-power products.

The invention can be used for purifying and decontaminating waste water and for activating aqueous solutions and chemically pure and potable water. The inventive method for treating water and aqueoussolutions by means of a pulsed gas-discharge plasma consists in exposing a liquid flow bordering a gas medium to the action of the pulsed gas-discharge plasma, said pulsed gas-discharge being inducedand maintained by two main electric pulsed discharges I and II having different frequencies with a condition that said gas medium is pre-ionized. The discharge II is formed in the form of a pulse packet in spaces between the discharge I pulses. The invention makes it possible to purify waste water having a high initial concentration of polluting substances, to increase the efficiency of aqueous media activation, to enhance the stability and resistance of acquired properties to external effects and to control the modified and/or reacquired physical, chemical and biological properties obtained by the aqueous media during the activation thereof.

The invention discloses an intelligent cabinet lock and an intelligent cabinet. The intelligent cabinet lock comprises an electronic lock main body arranged on a cabinet body and a lock catch arranged on a cabinet door, a locking assembly matched with the lock catch is arranged in the electronic lock main body, the electronic lock main body is provided with a transmission rod connected with the locking assembly, and the cabinet door is provided with a mechanical lock assembly. The mechanical lock assembly comprises a fixed frame and a rotating piece rotationally connected to the fixed frame, the rotating piece is fixedly connected with a poking piece which is located on the inner side of the cabinet door and used for driving the transmission rod to move, the transmission rod moves to change the state of the locking assembly, and the intelligent cabinet lock can be directly unlocked through an electronic lock, and the locking assembly can be opened by the transmission rod directly through the rotation of the poking piece under any condition.

A contactless switch comprises a signal generator, an auxiliary circuit and a working power supply, wherein the signal generator is connected with the auxiliary circuit through a wire; a switching circuit is arranged in auxiliary circuit; the signal generator is composed of a metal cylinder, an insulating hard material layer, an electric signal generating mechanism and a metal film; a cavity is formed in the metal cylinder; the metal film wraps the outer surface of the insulating hard material layer; the electric signal generating mechanism is embedded into the insulating hard material layer;the insulating hard material layer serves as a supporting component of the electric signal generating mechanism; and a wire is led out of the electric signal generating mechanism to the auxiliary circuit. The switch does not need to be touched by hands such that cross infection is avoided; no physical electric contact point exists, the circuit operation is stable, and the durable time is long; manufacturing cost is low, and manufacturing is simple; the original circuit design is not changed, and various switches and keys which can be instantly switched on and off by hand contact or hand pressing can be widely replaced.

The invention is a quick flashing memory device with characteristic shifting function which is provided with a first characteristic. The quick flashing memory device comprises a quick flashing memory unit with a second characteristic, a characteristic shifting unit for shifting the characteristic between the first and second characteristic to make a main machine access the quick flashing memory cell according to the first characteristic. In this way, the device can shift characteristic for quick flashing memory cell with different characteristic to make the circumscribed main machine access quick flashing memory cell without changing hardware design and have no compatibility problem.