324results about How to "Reduce laying costs" patented technology

The method thereof comprises: after the sending end converts the CPRI data into the frames adaptive to Ethernet transmission, it transmits the converted frames on the Ethernet; the receiving end receives the converted frames through Ethernet, and restores the converted frames into CPRI frames to get CPRI data. Before transmitting the CPRI data of one data packet, the frame head is firstly transmitted through IQ bandwidth; in the gaps of transmitting different data packets, the inter-frame gap is transmitted by using IQ bandwidth.

The invention discloses an intelligent housing system and a control method. The intelligent housing system is mainly composed of a gateway server, a client, a modulator-demodulator, a wireless router, a wireless coordinator and at least one wireless node, wherein the wireless router is connected with the Internet through the modulator-demodulator; the client is connected with the wireless router, and the wireless router is connected with the gateway server through a network cable and/or a mobile Internet; the gateway server is connected with the wireless coordinator through a serial port; the wireless coordinator is wirelessly connected with all the wireless nodes. The intelligent housing system disclosed by the invention has the characteristics of being convenient to install and maintain, low in cost, capable of realizing dynamic management for a housing control node, convenient to operate the client, high in system safety, stable, efficient, energy-saving and environment-friendly, and the like.

The flexible pipe comprises a plastic sealing sheath and an inner plastic sheath which define an annular space in which structural elements are placed. The structural elements comprising at least one armor ply consisting of metal wires wound helically with a long pitch are in the space. An end fitting is fitted at each end of the flexible pipe. At least one external anode electronically connected to at least one armor ply. The anode is placed in an intermediate region of the flexible pipe distal from the end fittings. A connection means connects the anode to at least one of the metal wires of the said armor ply in the intermediate region.

The invention discloses a self-supporting lightning-proof optical cable. The self-supporting lightning-proof optical cable comprises a cable core, a covered layer and a suspension wire, wherein the cable core is used for transmitting an optical signal and power; the covered layer is covered with the cable core; and the suspension wire is connected with the covered layer. The covered layer comprises a shielding layer, an outer sheath and a ground layer, wherein the shielding layer shields the cable core; the outer sheath coats the shielding layer; and the ground layer is arranged between the cable core and the shielding layer. The self-supporting lightning-proof optical cable of the invention can prevent communication equipment from being damaged by thunder and lightening, effectively prevent an electromagnetic field generated by the shielding cable from disturbing other communication cable signals and prevent external electromagnetic field from disturbing the cable core.

The invention discloses a multigroup lightning protection optical cable which comprises cables and a coating layer covering the cables, wherein the cables are made of multigroup cable cores covered by an inside liner; and the coating layer comprises a shielding layer for shielding the cables, an outer jacket covering the shielding layer and a grounding layer arranged between the inside liner and the shielding layer. The multigroup lightning protection optical cable can prevent lightning from damaging communication equipment, and can effectively shield the interference of an electric magnetic field generated by the cables on other communication cable signals and the interference of an external magnetic field on the cables.

The invention discloses a detection system for running a red light by a vehicle and a detection method for running the red light by a vehicle. The detection system and the detection method can obtain the zone of the license plate of a vehicle which runs the red lights in the manner of combining motion detection, vehicle detection and vehicle license plate detection to facilitate a control center to identify the identity of the vehicle, therefore, all the images captured when the red light shines are not needed to be transmitted to the control center, great quantity of images are not needed to be stored, and occupied network bandwidth and line paving cost are lowered. Compared the manner of combining the motion detection, the vehicle detection and the vehicle license plate detection with the scheme of only the motion detection existing in the prior art, the detection is more accurate and robustness is better. In addition, based on the detection system and the detection method, the control center only needs to process the zone of the vehicle license plate and does not need to process a plurality of whole-frame images, therefore, real time property can be guaranteed, a high-configuration server is not needed, and the cost is further lowered.

The invention discloses a water level monitoring method used for monitoring a water level of an underground well. The water level monitoring method comprises the following steps: sequentially placing three pressure sensors on different depths of a liquid medium in the underground well at fixed intervals so as to measure the pressures of different depths of the liquid medium; and calculating the depth of each pressure sensor according to the pressure value measured by each pressure sensor, and calculating the water level in the underground well according to the depth of each pressure sensor. The invention also discloses a water level monitoring device used for monitoring the water level of the underground well.

The invention relates to a kind of CO2 corrosion resistant pipeline steel used for surface gathering and a preparation method of the same. The pipeline steel consists of following components, in weight percentage, C 0.01 to 0.08%, Si 0.10 to 0.50%, Mn 0.50 to 1.50%, P not larger than 0.02%, S not larger than 0.006%, sum of Nb, V, Ti not larger than 0.1%, Cr 1.0 to 3.0%, Mo 0.10 to 0.30%, Cu 0.10 to 0.50%, Ni 0.10 to 0.50%, and the rest is Fe and inevitable impurities. The preparation method comprises the first step of smelting, casting, forging and pressing to produce steel billets, the second step of heating, the third step of rough rolling, the fourth step of finish rolling, and the fifth step of cooling. The CO2 corrosion resistant pipeline steel has a good anti-CO2 corrosion performance, and also has high strength and roughness performances and a good weldability. The pipeline steel is capable of being applied to a surface gathering pipeline project, and has a wide application prospect.

The invention relates to network remote control, in particular to a GPRS-based remote LED panel control system. The GPRS-based remote LED panel control system comprises an upper computer control terminal, a transit server and lower computer LED panels. The upper computer control terminal is in network connection with the lower computer LED panels through the transit server. According to the GPRS-based remote LED panel control system, remote control is achieved through the intranet penetration technology and the transit server, and each LED panel can be controlled by all networked PCs; wired control and wireless remote control are both achieved; the laying cost of communication lines and the communication fault rate are reduced; the stability and timeliness of LED information transmission are enhanced; the LED panels can receive information issued by the upper computer control terminal at any time, so that the working efficiency of the LED panels is greatly improved; the remote transmission data volume of the LED panels is increased, the information is sent through a GPRS DTU, the TCP/IP network protocol is adopted, and the number of networked terminals is not limited; the remote application distance of the LED panels is extended, and the LED panels can be used at any places with GPRS network coverage without distance limitation.

A method for laying a submarine pipeline leakage detection optical cable includes the steps that a pay-off rack is arranged on the stern of a pipe laying ship, and rubber pad strips, glue and flexible binding belts are arranged in the construction position; the rubber pad strips adhere to the outer surface of a pipeline through glue in a subsequent end-to-end connecting mode; the pay-off rack is controlled to release the sensing optical cable and the sensing optical cable is installed in an optical cable mounting groove of the rubber pad strips; one flexible binding belt is bound to the outer envelope surface formed by the pipeline and the rubber pad strips every certain distance; the pipeline is laid on the seabed sequentially in a downstream mode; the pipeline is buried under the submarine mud face through operation of a trencher; the completeness of the sensing optical cable is tested, and one end, connected with a platform or the land, of the sensing optical cable is connected into a system host through a terminal box. According to the method for laying the submarine pipeline leakage detection optical cable, laying of the optical cable is completed on the pipe laying ship, the operability is high, personnel investment is substantially saved, laying construction difficulty and laying cost are reduced, and laying efficiency is improved. The sensing optical cable is installed in the rubber pad strips which are longitudinally connected in a butted mode in sequence along the pipeline, and thus the whole optical cable can be protected.

The invention relates to a rail transportation system powered by solar energy, which consists of a solar panel, an installation rack, supply rails, rails for the running of vehicles and rail vehicles or road vehicles which are provided with collectors and are driven by motors. The rail transportation system is characterized in that the solar panel and the supply rails are arranged above the rails or on both sides of the rails through the installation rack; the vehicles run on lines are contacted with the supply rails through the collectors to provide electrical power for the vehicle-mounted motors to drive the vehicles; and the rail transportation system can meet the requirement of the running of the vehicles on high-speed rails of over 300 kilometers. A solar interval power-supply system consists of a plurality of continuous disconnected and independent power-supply intervals, can provide the electric power for the rail vehicles and automobiles which are provided with the collectors and are driven by the motors, and overcomes the defects of large installation space of storage cells, and excessive increment of dead weight and short driving range of pure electric automobiles, so that the pure electric automobiles and dual-mode vehicles can be widely applied on a large scale; and in addition, when automobiles with light-weight steel wheels are run on steel rail lines, energy can be saved by 40 to 70 percent, and thus the solar interval power-supply system can save the energy and protect environment.

The invention discloses a multi-function wireless access equipment and a wireless access method thereof, wherein the equipment comprises a voice gateway function unit, a data gateway and transmission interface unit, a power supply and equipment control unit and a multi-function wireless access unit. The voice gateway function unit is connected with the multi-function wireless access unit and the power supply and equipment control unit, and is connected with a remote PSTN switch by a transmission medium; the multi-function wireless access unit is connected with the voice gateway function unit, the power supply and equipment control unit and the data gateway and transmission interface unit; and the data gateway and transmission interface unit is connected with the multi-function wireless access unit and the power supply and equipment control unit and is connected with a broadband remote access server (BRAS), a macro network core-network and other wireless access networks through a transmission network. The multi-function wireless access equipment has the multi-function wireless access unit which can provide macro network wireless access network function, micro network function, wireless telephone function and wireless gateway function.

Disclosed are an automatic continuous operation robot for laying large-diameter pipelines and an operating method therefor. The operation robot comprises a platform, a main frame (1), an operation room, a navigation subsystem, a pipe grabbing and conveying subsystem (3), a pipe end face pre-treatment subsystem (4), an on-line measurement subsystem, a pipe supporting subsystem, a welding and welding quality inspection subsystem (5), and a control system. The operating method comprises: first detecting and grabbing a pipe, then performing groove machining on the pipe, fitting the welding end faces of the current pipe and a previous pipe, then putting down the pipe, finely adjusting and fixedly connecting the two pipes, and finally, welding the two pipes. The automatic continuous operation robot for laying large-diameter pipelines has a high degree of automation and high working efficiency, and the laying period is short.

The invention discloses an indoor floor heating construction method. The indoor floor heating construction method comprises the following steps: (a) preparing for construction; (b) cleaning floor; (c) laying a base layer; (d) laying heating pipes; (e) mounting a water distributor and a water collector; (f) constructing a filling layer; (g) performing a water pressure test. According to the indoor floor heating construction method, the quality of clamping blocks can be checked to improve the construction of the clamping blocks; when the clamping blocks are spliced, the clamping blocks are fixed to steel wire mesh pieces by using iron wires; the steel wire mesh pieces are spliced into a whole body in advance, so that the clamping blocks are stably fixed to the steel wire mesh pieces, the heating pipes can be laid smoothly, and the heating pipes are prevented from winding with one another; therefore, the heating pipes are laid orderly; reworking phenomena are reduced; the heating pipe pavement efficiency is improved; four sections of inner layer heating pipes are arranged between outer layer heating pipes at two ends; the heating pipe pavement area is increased; the temperature on the floor is increased uniformly after the construction of a floor heating system.

The invention discloses a distributed heat pump heating system utilizing circulating water waste heat, and belongs to the technical field of industrial waste heat heating equipment. The system is used for heating by utilizing the circulating water waste heat in industrial production. The system adopts the technical scheme that an input end of a technology circulating water supply pipeline and an output end of a technology circulating water return pipeline are connected with a heating part of a plate heat exchanger; an output end of a low-temperature heat source water supply pipeline and an input end of a low-temperature heat source water return pipeline are connected with a heat exchange part of the plate heat exchanger; a plurality of heating substations are connected in parallel in the low-temperature heat source water supply pipeline and the low-temperature heat source water return pipeline; and a heat pump unit is mounted in each heating substation. According to the system, a heating main pipe network transports low-temperature heat source water, so that the long-distance main pipe network laying cost and heat loss of the low-temperature heat source water of the main pipe network are reduced; and central heating is performed by combining distributed transport and a distributed heat pump, so that low-grade industrial waste heat is recycled, waste heat and exhaust gas emission is reduced, and the system has a significant economic benefit.

The invention relates to a rubber particle asphalt pavement material and a method for paving the rubble particle asphalt road surface, in particular to an asphalt pavement material and a method for paving the asphalt road surface. The invention solves the problems that the prior asphalt road surface does not possess the capability of inhibiting condensation of ice and snow on the road surface or removing ice and snow; adopting other methods for removing snow on the road causes the problems of environmental pollution, low utilization rate of equipments, influence on traffic capacity of working road, high energy consumption, high cost, complex process and difficult maintenance. The rubber particle asphalt pavement material is prepared with 76.5 to 91.5 portions of ore aggregate, 2.5 to 7.5 portions of asphalt, 4 to 10 portions of mineral powder, and 2 to 6 portions of rubber articles by weight portions. The method for paving the road surface comprises that I. the ore aggregate, the asphalt, the mineral powder and the rubber particles are weighed; II. the mixture of the rubber particles and the asphalt is prepared; and III. the mixture of the rubber particles and the asphalt are stirred, paved and rolled. The road surface of the invention can effectively inhibit the condensation of ice and snow on the road surface, and facilitate the following mechanical snow removal as well as road surface management and maintenance. The invention has low cost in road pavement and improvement effects in service performance of the road.

The invention discloses a wire cable which comprises an optical cable, a power wire, a tearing rope and a first protective sleeve. The power wire and the tearing rope are located outside the optical cable, and the first protective sleeve is located on the outmost side and wraps the power wire and the tearing rope. Due to the adoption of an optical-electric mixing cable structure, the number of wiring cables can be greatly reduced, and therefore the wiring process can be simplified, laying cost is lowered, laying difficulty is reduced, and meanwhile operation cost is saved to a large extent.

The optical cable includes cable core, metal belt coating the cable core, inner sheath outside the metal belt, reinforcing fiber part outside the inner sheath and outer sheath outside the reinforcing fiber part. The optical cable has very high tensile strength for direct hanging inside sewer without needing other support, has two layers of sheath and added ratproof and ant resisting additive resulting in raised performance of resisting corrosion, moisture, rat and ant for use in harsh environment, and has simple installation structure and thus lowered laying cost.

Provided is an electric resistance welded steel pipe that has high strength, high toughness, and excellent post-welding heat treatment resistance. A hot-rolled steel sheet comprising the following is used as a starting material: a composition containing 0.01-0.12% of C, 0.05-0.50% of Si, 1.0-2.2% of Mn, 0.03% or less of P, 0.005% or less of S, 0.001-0.10% of Al, 0.006% or less of N, 0.010-0.100% of Nb, and 0.001-0.050% of Ti; and a structure that comprises 90% by volume or more of a main phase that is a bainitic ferrite phase and 10% or less (including 0%) by volume of a second phase, in which the average particle size of the bainitic ferrite phase is 10 [mu]m or less and extremely fine Nb deposits having a particle size of less than 20 nm are dispersed at a rate that, when calculated in terms of Nb, is equal to or less than 75% by ratio (%) of the total amount of Nb. The starting material is formed to have a substantially circular cross section by roll forming and subsequently subjected to electric resistance welding in order to obtain an electric resistance welded pipe, the electric resistance welded section of the electric resistance welded pipe is subjected to inline heat treatment, and the result is subjected to diameter reduction rolling so that the deviation from roundness of a steel pipe end section is 0.6% or less.

The invention discloses a water permeable pavement with both self-luminous and light-reflecting functions. The water permeable pavement with the both self-luminous and light-reflecting functions comprises a bottom surface layer, a middle layer and a surface layer from bottom to top; the bottom surface layer is coated on a base material; the middle layer consists of luminescent powder, an adhesiveand aggregate, wherein the aggregate comprises self-luminous aggregate and light-reflecting aggregate; and the luminescent powder is added to the aggregate and then integrally bonded with the adhesive. According to the water permeable pavement with the both self-luminous and light-reflecting functions, the self-luminous aggregate and the light-reflecting aggregate are mixed, the luminescent powderis added to an obtained mixture, and then the luminescent powder is bonded with the mixture through the adhesive; compared with an existing water permeable pavement using a single luminous aggregate,the water permeable pavement with the both self-luminous and light-reflecting functions has the advantages that the usage of the luminescent powder is greatly reduced on the premise of guaranteeing an invariable luminous effect so that the use and laying cost can be reduced, and various light sources can also be effectively utilized to reduce lighting energy consumption. The invention further discloses a construction method of the water permeable pavement with the both self-luminous and light-reflecting functions.

The invention discloses an aluminum-coated steel high-conductivity overhead insulated cable and a production process thereof. The cable sequentially comprises a 20.3% IACS aluminum-coated steel core, a 62.5% IACS hard aluminum wire, a conductor shielding layer and a weather-resistant insulated layer from inside to outside, wherein the 20.3% IACS aluminum-coated steel core is a stranded wire formed by coating the surface of a patented steel wire with an aluminum rod with the purity of 99.70%; the 62.5% IACS hard aluminum wire is formed by stranding a hard aluminum wire with the conductivity of 62.5% IACS, the tensile strength higher than 160MPa and the strength uniformity lower than 25MPa; the shielding layer is made from a crosslinked polyethylene or non-crosslinked polyethylene material; and the weather-resistant insulated layer is made from a polyethylene, polyvinyl chloride or crosslinked polyethylene material. According to the cable, a conductor adopts an aluminum-coated steel core high-conductivity aluminum stranded wire structure; the aluminum-coated steel core has electrochemical corrosion resistance and fog corrosion resistance in comparison with a general steel core; the conductor life is prolonged; and high-conductivity aluminum can effectively reduce line loss and improve power transmission efficiency.

The invention relates to a novel metal floor tile with thickness of1.5-5.5. The metal floor tile comprises a panel and a rim formed by bending the circumference of the panel downwards, a plurality of openings are punched on the panel, one end of the opening downwards forms an anchoring strip connected with the panel, a plurality of through holes are punched on the rim, and one end of the through hole inwards forms a reinforcement bar connected with the rim. Compared with the prior art, the novel metal floor tile is simple in structure and novel in design, a straight flanging can bear horizontal twisting force to the floor tile and can increase the strength of binding force between the rim and filling material, and an arc flanging can enhance the strength of the metal floor tile and cement. The anchoring strip of the metal floor tile is designed in a connecting way (scrapless design), the integral pavement quality and intensity are improved, the manufacturing cost is greatly reduced, the jointing position of the ground can not be deformed owning to pressing of heavy objects in the pavement process, and the safety performance is high.

The invention belongs to optical communication devices, particularly relates to a laser transmitter, and provides a coaxially-packaged DFB laser transmitter with a refrigeration function. The coaxially-packaged DFB laser transmitter comprises a cavity, a DFB laser chip mounted on a laser chip heat sink and a backlight detection chip mounted on a detection chip heat sink are arranged in the cavity, a TO package structure is adopted, a tube seat, a tube cap, an optical isolator, an adaptor, a lens and a 45-degree total-reflection sheet are coaxially packaged in the cavity, one side of a thermoelectric refrigerating unit is mounted under the laser chip heat sink, and the other side of the same is mounted on the tube seat. The TO coaxial package structure is adopted, the 45-degree total-reflection sheet is adopted to effectively solve the problem of a light path structure, and the thermoelectric refrigerating unit is arranged inside the DFB laser transmitter to accurately control working temperature of the laser transmitter. The coaxially-packaged DFB laser transmitter has the advantages of small size, low cost, stable output wavelength and the like, and high-speed long-distance transmission of laser is realized favorably.

The invention relates to a fire-resistant optical fiber composite medium-voltage cable, which is characterized by consisting of an outer cladding layer and an inner core, wherein the inner core is formed by twisting a cable wire core and an optical cable unit; the optical cable unit is twisted into a cable by a reinforcing element and a loose tube arranged on the periphery of the reinforcing element; the cable wire core is formed by a conductor and an insulation shielding composite layer; the insulation shielding composite layer is formed on the outer side of the conductor in an extruded wrapping way; and the outer cladding layer is formed by sequentially cladding a heat insulation layer, a fire-resistant layer, an oxygen barrier layer, an anti-impact layer and an outer sheath layer. The fire-resistant optical fiber composite medium-voltage cable simultaneously has information communication and electric power transmission functions; an optical unit is directly compounded on the edge side of a cabling core of an electric power cable by using a nonmetallic structure; the outer diameter of a product is identical to the outer diameter of an ordinary low-voltage electric power cable; under the condition of not increasing the laying cost of the cable, functions such as the upper end connection of the electric power optical fiber to the home and electric power line monitoring and early warning functions can be synchronously realized; the fault response speed is accelerated; and the line maintenance cost is reduced.

The invention discloses an intelligent centralized street lamp control system and a method for providing a wireless WIFI hotspot. The system comprises an intelligent street lamp centralizer, the intelligent street lamp centralizer communicates with an urban trunk network via an optical fiber transceiver, the intelligent street lamp centralizer communicates with multiple WIFI APs in a broadband power carrier communication mode, and the WIFI APs are integrated on single lamp controllers. A WIFI network networking mode between the intelligent street lamp centralizer and a large number of single lamp controllers adopts a centralized control-type AC+Fit AP networking mode. The broadband power carrier communication mode for the existing street lamp power supply network is used for replacing a communication mode for a special cable such as an optical cable, and a large amount of communication cable purchasing and laying cost is saved. The existing street lamp pole is used for mounting a WIFI hotspot device, the power supply problem of the wireless WIFI network device is solved, the cost of laying the power supply cable is saved, and the pole tower purchasing and laying cost is saved.