83results about How to "Reduce construction complexity" patented technology

The invention discloses a server and a parking space detection method and system and relates to the field of parking lot parking space detection. The parking space detection method includes: receiving parking space magnetic-field intensity change information transmitted by a magnetic-field sensor of each parking space; determining parking space occupancy according to the parking space magnetic-field intensity change information. A novel parking space detection technology is realized on the basis of the magnetic-field sensors, active power support is not needed, requirements on light conditions are avoided, and occasions like underground parking lots and multilayer parking lots can be adapted.

The invention discloses a large-span net rack aloft pairing, installing and overall horizontal moving method. The method includes the following steps of erecting a scaffold operation platform at the right end of a frame in the length direction of the factory frame; arranging two parallel slide rails on the platform, wherein the rails extend in the length direction of the frame; splicing and welding a first net rack on the platform; making the first net rack slide along the rails aloft, placing the first net rack on the rails temporarily after the first net rack leaves the platform so that a next net rack can be spliced, making the two net racks slide aloft together after the two net racks are spliced, and sequentially conducting operation for subsequent net racks; splicing all the net racks and making the net racks slide together; fixing all the net racks sliding in place to the factory frame; detaching the scaffold operation platform. The method is easy to operate, small in labor input, high in work efficiency, safe and reliable; especially under the condition that field conditions are limited, the construction progress can be greatly improved, and the construction cost can be better saved.

The invention belongs to the technical field of building engineering, and provides a reinforced concrete hollow superposed two-way dense rib floor and a construction method thereof. The floor is divided into common reinforced concrete and pre-stressed concrete, and is suitable for industrial and civil building floors and roof boards with spans of more than 6 meters. The reinforced concrete hollowsuperposed two-way dense rib floor is assembled into a floor bottom die by using a plurality pieces of prefabricated reinforced concrete (or pre-stressed concrete) ribbed bottom plates, a light or hollow material is arranged on the ribbed bottom plate to reduce the dead weight of the structure, the concrete is poured after the longitudinal and transverse rib beam steel bars are paved, and after the construction and curing is finished, an assembled integral reinforced concrete hollow superposed two-way dense rib floor is formed. According to the invention, the floor is in accordance with the standardization and the modular requirements of the industrial production of the current building, the floor can be produced by using the equipment in most prior factories, and the production process issimple. The prefabricated reinforced concrete ribbed bottom plate is assembled on site, no formwork is needed, only a small amount of supports are needed, so that a large number of formworks and labors are saved.

The invention relates to a welding-free assembled type framework and a bolt latch. The framework is installed on a main structure, and dry hanging pieces are connected with the framework; the framework comprises keels with channel grooves, main body fixing parts, sliding blocks and the dry hanging pieces; the keels are fixedly connected with the main body fixing parts in a detachable manner, the main body fixing parts are fixed on the main structure in a detachable manner, the dry hanging pieces are fixed on the sliding blocks and the sliding blocks are arranged on the channel grooves of the keels; the keels are connected by keel connecting pieces; and the main body fixing parts, the sliding blocks and the keel connecting pieces are fixed on the keels by the bolt latches. The components of the framework structure are produced in a standardized manner, so that the requirements on the installation technical personnel are low and the installation is agile and convenient.

The invention provides a system and a method for testing software by a on-board unit. The system comprises a module M1, a module M2 and a module M3, wherein the module M1 is used for converting related parameters specified in a C-V2X data interaction standard corresponding to a traffic participant into real traffic scene data through a simulation test program by referring to a preset proportionalrelation; the module M2 is used for sending the converted real traffic scene data to a function library in the OBU in a classified manner in a preset format; and the module M3 is used for converting the converted real traffic scene data into a PC5 interface data format according to classification by a function library in the OBU and pushing the converted real traffic scene data to a V2X application program. The test of the vehicle-road cooperative application scene is realized through a pure software method, the risk is reduced, the efficiency is improved, and the cost is saved.

The invention relates to a sieve pipe self-locking switch controller. The sieve pipe self-locking switch controller is mainly composed of a conical sliding rail connector, a movable stirring block, a spring pressing cap, a reset spring and a front guiding head. Two to six dovetail grooves evenly distributed in the circumferential direction of the axis are machined in a conical structure body of the conical sliding rail connector. The movable stirring block is of a round flaw structure, and T-shaped sliding rails are machined on the bottom face, arranged in the dovetail grooves of the conical sliding rail connector and are in sliding fit. A rod head is machined at the front end of the movable stirring block, the top end of the rod head makes contact with one end of the spring pressing cap, and the spring pressing cap is arranged on a shaft outer sleeve of the front guiding head and is in sliding fit. The reset spring is arranged between the spring pressing cap and the front guiding head shoulder part. The end of the front guiding head is a conical body. The sieve pipe self-locking switch controller is used in cooperation with a sand control sieve pipe with a self-locking switch, one or more sand control sieve pipes at the assigned position under a well can be controlled according to the actual needs and can be made to put into production or quit production, and accordingly the purposes of flow adjusting, water controlling and production system optimizing are achieved.

The invention provides a power consumption information acquisition device and a system. The power consumption information acquisition device comprises a terminal device, a local repeater and a remote repeater, wherein the terminal device is connected with the local repeater; the local repeater also communicates with the remote repeater via a power carrier wave communication technology; the remote repeater is also used for communicating with a power distribution automation master station via a mobile communication network. According to the power consumption information acquisition device and the system, the mobile communication network signal intensity in the position of the remote repeater can meet the requirement on communication between the mobile communication network and the power distribution automation master station; data communication can be directly carried out between the local repeater and the remote repeater through an existing power line; the complex additional operations of pulling feeder lines and replacing high-gain antennas can be effectively avoided under the condition that the problem of the inadequate coverage of the mobile communication network signal can be solved; the construction complexity is reduced.

The invention discloses a block-by-block construction method for a quasi-cyclic LDPC code. The invention constructs each block matrix in a quasi-cyclic LDPC code check matrix block by block to cause a ring which has the length of 4 and 6 to not exist between the current constructed block matrix and the prior block matrix by adopting a certain constraint condition, and a (3, L) quasi-cyclic low density parity check code with the minimum ring length being of 8 is finally constructed. Shown by the theoretical analysis that compared with the random construction method of the (3, L) quasi-cyclic LDPC code with the minimum ring length being of 8, the invention greatly lowers the complexity of the construction, and is degraded to a polynomial order from an exponential order. In addition, a simulation result shows that the performance of the quasi-cyclic LDPC code constructed by the invention is superior to the LDPC code based on a random check matrix when short and medium lengths are grouped.

The invention provides a fault monitoring system for a railway signal machine, and relates to the technical field of railway signals. The fault monitoring system comprises an intelligent lighting unitand a machine room terminal; one end of the intelligent lighting unit is connected with a dual-filament bulb of the railway signal machine, and the other end of the intelligent lighting unit is connected with the machine room terminal through a power supply cable line of the railway signal machine; the intelligent lighting unit comprises a filament conversion relay, a signal transformer, a load switching relay and a resistive load; and the machine room terminal determines whether the railway signal machine is faulted or not by monitoring the current change on the power supply cable line and gives an alarm. Compared with the prior art, a special alarm line does not need to be laid on a railway site, fault positioning and alarming functions of the railway signal machine can be realized by using the existing power supply cable line, the construction complexity is lowered, the cost is saved, and the fault positioning precision is improved.

The invention discloses an overhead distribution line, which comprises a strain pole, two composite cross arms and strain fixed parts, wherein the middle parts of the composite cross arms are horizontally fixed on the strain pole; the end parts of the composite cross arms are connected with the strain fixed parts; the two composite cross arms are connected into a whole through the strain fixed parts; and the strain fixed parts are used for fixing wires. Through the overhead distribution line, two composite cross arms are fixed on the same horizontal plane of the strain pole, so that the longitudinal tension required for tension can be met; the dry arcing distance can be further greatly increased by using compounding of composite cross arm bodies, the electrical lightning withstand level can be improved and the accidents, such as lightning stroke breakage flashover are avoided; the composite cross arms are free of maintenance and free of periodic inspection and maintenance, so that thehuman cost is greatly reduced; and a strain insulator can be omitted through use of the composite cross arms, so that the structure of the line is simplified.

The invention discloses an on-line monitoring device, in particular to a bus duct temperature acquisition device based on the LoRa Internet of Things and the Contiki system. The device includes a temperature sensor, a main controller, a LoRa RF module, an antenna, an indicator light, and a power supply module. The temperature collection data transmission adopts the wireless method to reduce the construction complexity and save the construction cost. The problem of distance limitation of the traditional wireless communication methods is solved and the arrangement of the gateway is reduced. Since the gateway cost is generally much higher than the node cost, the construction cost can be greatly reduced.

The invention relates to a lifting door (1), comprising a movable door leaf (6) formed by slats (61) pivotably connected to each other and comprising building-mounted frames (2). Lateral guides (3) for the door leaf (6), which have a vertical section (32) and a lintel section (31), and frame sealing elements (51) of a sealing device (5) are arranged thereon. The frame sealing elements close a gap between the door leaf (6) and a section of the frames (2) facing the door opening when the lifting door (1) is closed. The vertical sections (32) of the guides (3) can be moved perpendicularly to the door leaf plane and are supported on the frames (2) in a stationary manner in the direction of motion of the door leaf (6; 6'), whereby the door leaf (6) can be pressed against the sealing device (5) in the direction of the outside of the door when the lifting door (1) is closed. The invention further relates to a frame (2), a guide (3), and a corresponding method. Thus an improved sealing effect between the door leaf (6) and the door opening can be created, wherein at the same time high reliability during operation is achieved and high motion speeds are enabled.

The invention discloses a paperless intelligent video conference system based on state management, and belongs to the technical field of video conferences. The paperless intelligent video conference system based on the state management comprises a high-definition digital encoder, a large-screen controller, an intelligent digital expansion host, an intelligent multimedia conference control host, arouter and a plurality of conference tablets; the high-definition digital encoder, the large-screen controller, the intelligent digital expansion host, the intelligent multimedia conference control host and the router are sequentially connected; and the high-definition digital encoder is connected with image acquisition equipment. The states of conferees can be detected; a manager can visually master the states of the conferees and the effect of a conference; the conferees can be conveniently supervised and urged; the actual effect of the conference is greatly improved; the topological structure of the system in the technical scheme is simple; the construction complexity is greatly reduced under the condition that a conference table is inconvenient to replace; and the stability and maintainability of the system are improved.

The invention discloses a profiled steel sheet-ultrahigh toughness concrete combined bridge deck which comprises profiled steel sheets, round steel bars and ultrahigh toughness concrete. Round holes are formed in a rib web of each profiled steel sheet at equal intervals, and the round steel bars transversely penetrate through the round holes to form a bridge deck steel framework. The ultrahigh toughness concrete is poured on the bridge deck steel framework to play a role in protecting the bridge deck steel framework. According to the invention, the corrugated shape and the mechanical property of the profiled steel sheet enable the profiled steel sheet not to be additionally welded with longitudinal and transverse stiffening ribs, so that the fatigue performance of the structure is greatly improved while the construction complexity is reduced; and the transverse bending capacity of the combined bridge deck is improved through the round steel bars, the stress mode is changed from one-way stress to two-way stress, and meanwhile the round steel bars and the inter-hole steel plates jointly achieve the shear force connection and pulling resistance effects. The ultrahigh toughness concrete can ensure that no or only small cracks of 100 microns or below are generated, the use requirement of a reinforcing mesh is effectively avoided, the use amount is small, and the toughness and durability of the structure are improved.

This invention relates a kind of preventing false deadlock function design method of the intellect detect and control device. It is characterized in that it can realizes the fully-automatic sweep, semi-automatic sweep, remote and trigger multiple flexible configurations mode of operation by programming the preventing false deadlock logic; the intellect detect and control device can realize the data sharing by the network and every device offers six hard deadlock junction outputs and realize the software preventing false add hardware preventing false truly; the design method concludes eleven sub function blocks: semi-automatic scan mode of operation module, hard deadlock junction control module, remote control trigger mode of operation module, logic calculation service interface module, full-automatic scan mode of operation module, this device real time data base module, logic calculation real time data base module, GOOSE communication service module, signal acquisition unit module, UDP communication service module, Ethernet interface module. This invention can make up for the shortage of traditional preventing false deadlock and reduce the line connection of the secondary circuit and simplify the construction and can run independently and enhance the safe reliability of the systems operation.

The invention discloses a wireless visual building intercommunication system. The system comprises a unit entrance machine and a plurality of visual indoor machines that are respectively wirelessly connected with the unit entrance machine. The unit entrance machine includes an MCU control circuit, an LCD control circuit, an LCD color display screen, a camera, a microphone, a key set, a wireless signal transceiver, and an electronic lock. The visual indoor machines consist of MCU control circuits, LCD control circuits, LCD color display screens, cameras, microphones, key sets, wireless signal transceivers and horns; bidirectional signaling transmission is carried out between the MCU control circuits and the wireless signal transceivers; the key sets are trasmitted to the MCU control circuits; the MCU control circuits control the horns to carry out sounding as well as respectively control the cameras, the microphones and the LCD control circuits to be started to work; the LCD control circuits drive and control the LCD color display screens to work; and the MCU control circuits control on and off of the electronic lock. According to the invention, wireless communication is employed to reduce construction triviality of the whole system; and a function of audio video communication between a householder and a visitor and a visitor message leaving function can be realized.

The invention discloses a text data stream classification method based on word vectors and an integrated SVM (Support Vector Machine). The text data stream classification method comprises the following steps: 1, obtaining a seed text set from a text data set; 2, performing word vector expansion processing on the seed text set to obtain a corresponding feature dictionary and a noise dictionary; 3,performing feature weighted vectorization processing on the text data set to obtain a corresponding text vector set; and 4, constructing an integrated classifier to obtain classification results of all the texts. According to the method, the accuracy of the classification result can be improved by fully utilizing the data features under the condition that the calculation complexity is reduced, sothat the requirement for solving the actual problem is met.

The invention relates to an environment-friendly basement and night scene integrated lighting lamp. The environment-friendly basement and night scene integrated lighting lamp comprises light gathering covers, photoelectric plates connected with a storage battery and light guide pipes. The light gathering covers include the night scene lampshade, the underground lampshade and the transmission lampshades. The sensitization faces of the two photoelectric plates are vertically and closely attached together in a deviation mode. Lighting lamp bodies are arranged on the lower photoelectric plate at equal intervals in an arrayed mode. The lighting lamp bodies are electrically connected with the storage battery and a photoswitch. Mirror surface films are attached to the lighting lamp bodies. The two transmission lampshades are symmetrically arranged below the lower photoelectric plate. The night scene lampshade is connected with one transmission lampshade through the corresponding light guide pipe, and the other transmission lampshade is connected to the underground lampshade located on a top plate of a basement through the corresponding light guide pipe. The lighting lamp is economical and environmentally friendly, and an enough light source can be provided for the basement; meanwhile, the underground accumulated water can be prevented from damaging the night scene lamp.

The invention discloses a precast concrete column and steel beam connecting joint with inner partition plates. The joint comprises a steel-encased sleeve fixed in a joint area, the steel-encased sleeve is fixed at the position, corresponding to the joint area, of a precast concrete column, the upper inner partition plate and the lower inner partition plate are arranged in the steel-encased sleeve,the upper inner partition plate and the lower inner partition plate are welded to the inner side of the steel-encased sleeve plate at the positions, corresponding to the joint area, of the top and the bottom of a steel beam, the upper inner partition plate and the lower inner partition plate each are provided with a longitudinal bar penetrating structure and a concrete pouring hole, the steel-encased sleeve and a reinforcement cage of the precast concrete column are pre-buried in a concrete solid of the precast concrete column, the part, corresponding to the steel-encased sleeve, of the reinforcement cage of the precast concrete column is composed of longitudinal bars, the outer side face of the steel-encased sleeve is flush with the outer side face of the column, and a steel corbel connected with the steel beam is welded to the outer side face, corresponding to the steel beam, of the steel-encased sleeve. The precast concrete column and steel beam connecting joint is simple in structure and convenient to assemble, has good mechanical properties, is safe and reliable, and has good integrality.

The invention discloses a wood-plastic wall panel for a house with a wood-plastic structure and an installation method thereof, and aims to provide a wood-plastic wall panel for a house with a wood-plastic structure that can facilitate wiring arrangement and an installation method thereof. Wherein the wood-plastic wallboard includes a wood-plastic board body and a wood-plastic gusset plate; one end of the wood-plastic board body is provided with a groove, and the other end is provided with a protrusion corresponding to the slot; the wood-plastic board body is arranged along the direction of the groove There are several rectangular holes, so that the wood-plastic board body forms a hollow structure, and the wood-plastic board body has a wire groove for accommodating cables, and the wood-plastic gusset plate is clamped on the wire groove. The invention is convenient and quick to replace, can significantly reduce the complexity of construction, and greatly facilitates the arrangement and maintenance of electric wires.