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54results about How to "Less Design Work" patented technology

Method for longitudinal stiffness control over high-pier large-span concrete continuous girder bridge and bridge

ActiveCN107201716AMeet vertical and horizontal control standardsProcess stabilityBridge structural detailsEngineeringFixed Bridges
The invention relates to the technical field of high-pier large-span concrete bridges, in particular to a method for longitudinal stiffness control over a high-pier large-span concrete continuous girder bridge and a bridge. The method for longitudinal stiffness control comprises a step a) of establishing a linear bridge pier integrated calculation model; a step b) of applying an analog load; a step c) of analyzing beam track acting force and jointless track stress deformation laws; and a step d) of determining longitudinal rigidity limits of a fixed bridge pier and track treatment measures. Therefore, beam shape arrangement and fixed pier rigidity are determined, a problem that in the prior art, it is difficult to control longitudinal stiffness of the high-pier large-span continuous girder bridge is solved, and the blank of the high-pier large-span girder bridge in the field of longitudinal stiffness control is filled. Meanwhile, normative standards of longitudinal linear stiffness limits of the high-pier large-span concrete continuous girder bridge are established, a reference and a basis are provided for bridge design and construction, so the design cost is reduced, and the actually built bridge meets specific usage environments.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD

Longitudinal rigidity control method for high-pier and large-span concrete continuous rigid frame bridge and bridge

ActiveCN107330190AMeet vertical and horizontal control standardsMeet the requirements of coupling dynamic characteristicsGeometric CADDesign optimisation/simulationDesign cycleEngineering
The invention relates to the technical field of high-pier and large-span concrete bridges, in particular to a longitudinal rigidity control method for a high-pier and large-span concrete continuous rigid frame bridge and a bridge. The longitudinal rigidity control method includes the steps that a) a line pier integrated calculation model is established; b) the intensity and the stability of a rail under different working conditions are checked and calculated; c) different loads are applied to the continuous rigid frame bridge, and the influence conditions of the loads on force deformation of a seamless track are checked and calculated; d) the acting force and mutual displacement of a beam rail are analyzed; e) limiting values of the longitudinal rigidity of bridge fixed piers and rail processing measures are determined, and therefore the beam-shaped arrangement rigidity and the rigidity of the fixed piers are determined. The problem that the longitudinal rigidity of the high-pier and large-span continuous rigid frame bridge is difficult to control in the prior art is solved, the void of the high-pier and large-span concrete continuous rigid frame bridge in the longitudinal-rigidity control field is filled, a reference and a basis are provided for design and construction of the bridge, the design cycle is shortened accordingly, and the cost is reduced.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD

Frame recognition method and device for multiple types of data streams and readable storage medium

The invention belongs to the technical field of Internet of Things multi-type terminal data communication. The invention discloses a multi-type data stream-oriented frame identification method and device, and a readable storage medium, and the method comprises the following steps: S1, building a frame description template of each terminal according to the data frame structure of each terminal anda preset initial frame description template, and obtaining a frame description template set; S2, describing the template set through polling frames, and identifying the multiple types of data streamsas data frames of different structures. In a multi-scene integration application, data frames of different protocols can be described to form a frame description template set, and a data center identifies the data frames of different terminals by polling the frame description template set. The design work of customizing different data frame identification programs due to identification of different types of terminal data is reduced, the universality of the system is improved, and rapid expansion of the system is facilitated; the method is not only suitable for an intelligent monitoring system,but also can be extended to Internet of Things integrated application scenes such as smart agriculture, smart traffic and smart home.
Owner:XIAN MICROELECTRONICS TECH INST

SFP28 optical module

The invention relates to an SFP28 optical module. The optical module comprises a shell and a connecting finger arranged on the shell, wherein a circuit part and an optical path part are arranged in the shell; the circuit part comprises an MCU controller and a main chip; the optical path part comprises an optical transmitting component and an optical receiving component, and the main chip is integrated with a laser drive circuit, a limiting amplifier circuit, a first clock data recovery circuit and a second clock data recovery circuit; the optical transmitting component comprises a direct modulation laser; and the optical receiving component comprises a photodiode and a transimpedance amplifier. According to the SFP28 optical module disclosed by the invention, the circuit part of the optical module is integrated in the main chip, and thus the design operation of the circuit board can be reduced, the interaction effect of the devices and circuits can be reduced, and the technological process can be shortened; and meanwhile, the laser is no longer encapsulated by using a hermetically sealed gold box, but adopts a TO-CAN process for encapsulation, and thus a simple process can be provided, the heat dissipation problem can be more effectively solved, the manufacture cost can be reduced, and the practicability can be increased.
Owner:WUHAN FIBERPON TECH

Electronic gate pass generation method, electronic gate pass generation device and electronic gate pass generation system

The present application embodiment provides an electronic gate pass generation method, an electronic gate pass generation device and an electronic gate pass generation system, the electronic gate pass generation method is as follows: receiving an electronic gate pass loading instruction; in accordance with the electronic gate pass loading instruction, generating an electronic gate pass loading request; sending the electronic gate pass loading request to a server; receiving an electronic gate pass page, to which the server requests to return in allusion to the loading request, and content information, wherein the electronic gate pass page comprising an electronic gate pass template, and the content information includes at least one of activity information and user information; and embedding the content information into the electronic gate pass template to generate an electronic gate pass. According to the electronic gate pass generation method, no physical gate pass is needed to be made, the electronic gate pass generation method is environmentally-friendly, and reduces the cost of the gate pass; staff do not need to repeat confirming of user identity during approach, labor cost is reduced, authentication operation is easy, and the efficiency of authentication is greatly improved.
Owner:ALIBABA GRP HLDG LTD

Roller bed clamp based on NC multi-vehicle-type mixed flow

The invention discloses a roller bed clamp based on NC multi-vehicle-type mixed flow. Comprising a clamp body unit, an NC switching unit, a roller bed unit, an RFID unit and a signal integration unit. The lower end of the clamp body unit is fixed on the horizontal plane; the lower end of the NC switching unit is fixed on the clamp body unit; the roller bed unit is arranged on the clamp body unit, and the lower end is fixed on the horizontal plane; the RFID unit is fixed on the roller bed unit; the signal integration unit is fixed on the clamp body unit; the body-in-white is supported by the roller bed unit and conveyed to the next station, the roller bed unit descends after the body-in-white reaches the station, and the body-in-white is supported and positioned by the clamp body unit; the RFID unit reads the serial number and the vehicle type information of the current body-in-white product and transmits the serial number and the vehicle type information to the PLC; the signal integration unit is connected with the clamp body unit 1, the NC switching unit and the RFID unit. According to the multi-vehicle-type flexible welding production process, the multi-vehicle-type flexible welding production process is achieved based on the three-axis NC equipment and the RFID equipment, the clamp design work is greatly reduced, and the vehicle type fusion difficulty and the vehicle type fusion upper limit are reduced.
Owner:CHINA FIRST AUTOMOBILE +1
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