460results about How to "Increase construction costs" patented technology

The invention belongs to the technical field of street lamp illumination, and in particular mainly relates to a street lamp energy-saving and managing system based on internet of things. The system mainly consists of a main monitoring center, a remote terminal unit (RTU) and wireless sensor nodes, wherein the wireless sensor node which is responsible for detecting and controlling single lamp street to operate and executing a lamping switching-on and switching-off operation by receiving an instruction sent by the RTU is arranged on each street lamp, the wireless sensor nodes are connected with the RTU through a GPRS (General Packet Radio Service) module, and the RTU arranged at a transformer workstation is respectively connected with the main monitoring center, a server and a display device through Internet. The street lamp energy-saving and managing system disclosed by the invention can realize illumination as required, high efficiency and energy saving and fine management, solves the problems generally existing in the current street lamp monitoring management system and has the advantages of wide application range and suitability for popularization.

Disclosed herein is a multi-air conditioner central control system, which shares the physical network and control resources with a multi-air conditioner system so as to control a ventilation system in an integrated manner. The central control system comprises a multi-air conditioner system including one or more multi-air conditioners connected to a network for indoor air conditioning, a ventilation system including one or more ventilation devices connected to the network for ventilating indoor air by inhaling and exhausting the indoor air, and a central controller connected with the multi-air conditioner system and the ventilation system for monitoring, in real time, a state of each of the multi-air conditioners and the ventilation devices and controlling an operation thereof. Thus, each operation of the multi-air conditioning facilities installed throughout the building can be rapidly and efficiently controlled via the single central control system. Moreover, for central control of the ventilation system, there is no need to equip an additional network and controller. Consequently, system construction costs are minimized and system development time can be greatly reduced.

The invention discloses an SBS (styrene-butadiene-styrene) modified regenerant. Components of the SBS modified regenerant include, in mass percent, 10-20% of SBS, 15-60% of 90A asphalt, 20-60% of extract oil, 4-20% of DOP (dioctyl-phthalate) and 0.05-0.3% of stabilizers. The invention further discloses a preparation method of the SBS modified regenerant and a method for regenerating the SBS modified asphalt by the aid of the SBS modified regenerant, and regenerative SBS modified asphalt is prepared. The SBS modified regenerant is made of raw materials easy to purchase, simple in process, convenient in production, fine in storage stability, stable in physical and chemical property and suitable for serving as a special regenerant for hot in-place recycling construction and hot recycling. Various indexes such as high-temperature stability, low-temperature crack resistance, elasticity and the like of the aged SBS modified asphalt can be obviously improved.

The invention relates to a renewable energy generating, power transmission and transformation and electrical network access integrated system, for the purpose of providing an access system capable of preventing impact or trawlnet caused to an electrical network. The technical scheme is as follows: the integrated system comprises renewable energy integrated generating units, at least one high voltage direct current transmission (HVDC) line, at least one inverter and a power generation field computer monitoring system, wherein the output end of each renewable energy integrated generating unit is connected with a high voltage direct current bus; one end of the HVDC line is connected with the high voltage direct current bus; the other end of the HVDC line is connected with the direct current input end of the large-power inverter; the alternating current output end of the large-power inverter is connected with an alternating current large electrical network; the power generation field computer monitoring system is connected with an electrical network dispatching control center and receives dispatching orders; and the power generation field computer monitoring system is also connected with the renewable energy integrated generating units and gives generating set values.

The invention relates to a plastic sleeve concrete pile and a construction method thereof. the plastic sleeve concrete pile comprises a cover board, plastic sleeves, pile tips, concrete and sleeve joints, wherein the top of each plastic sleeve is connected with the cover board and the lower part is connected with each pile tip, every two plastic sleeves are connected by the sleeve joint, and the concrete is poured in the plastic sleeves. The construction method comprises the following steps: connecting the prefabricated pile tips with the plastic sleeves, pulling the plastic sleeves together with the pile tips into an immersed tube after lifting the immersed tube at a certain height, starting a plastic sleeve concrete pile driver to drive the plastic sleeves with the pile tips together into the pile length designed depth, lifting the immersed tube after filling water into the plastic sleeves until 1/2-2/3 of pile length but remaining the plastic sleeves and the pile tips into the foundation, pumping filled water in the plastic sleeves, and pouring a concrete pile body and the cover board into the plastic sleeves to be made into the plastic sleeve concrete pile. The plastic sleeve concrete pile has small soil extrusion action, uneasy broken pile, flexible and rapid construction, easy control of pile body quality, higher bearing capacity of single pile and good cost performance; and the pouring is not influenced by outside.

The present invention relates to prestressed composite truss girder and construction method of the same. The prestressed composite truss girder of the present invention comprises a concrete bottom plate having structure of composite truss; a lower-chord member being composed of prestressed concrete wherein prestress is induced to resist against the elongation strength generated when composing and not composing and to reduce the droop occurred at the state of composition and having perpendicular and horizontal cross-section of certain shape and certain length; web members wherein vertical chords and diagnal chords composed of rolled steel to upper plate of said lower-chord member; and upper-chord member combined with said web members along the longitudinal direction of said lower-chord member to resist against the compressive force generated before said concrete bottom plate being composed.

Provided is a MEMS microphone package having a sound hole in a PCB, which can ground-connect a metal case to a main board using an assembly process including bending and clamping an end of the case. The MEMS microphone package includes a tetragonal container-shaped metal case having an open-side to insert components into an inner space, and a chamfered end on the open-side to easily perform a curling operation, a printed circuit board (PCB) substrate to which a MEMS microphone chip and an application specific integrated circuit (ASIC) chip are mounted, the PCB substrate being inserted into the metal case and having a sound hole for introducing an external sound, and a support configured to support the PCB substrate in the curling operation and define a space between the metal case and the PCB substrate.

The invention discloses an indoor positioning system which comprises a plurality of positioning anchor points which periodically transmit self ID information through encrypted/non-encrypted broadcastframes, a positioning label which is arranged on a target to be positioned and scans and receives the ID information of the positioning anchor points and the signal strength RSSI values correspondingto the positioning anchor points, and emits the information and values in a wireless mode, a positioning gateway which receives and sends out the information sent by the positioning label in a wireless mode, a positioning server which receives the ID information of the positioning anchor points, the signal strength RSSI values and the ID of the positioning label, searches the positioning information of the corresponding positioning anchor points through the received ID information of the positioning anchor points, calculating the distance value between the positioning label and each positioning anchor point through the received signal strength RSSI value, and obtaining the indoor positioning information of the positioning label through a positioning algorithm. According to the indoor positioning system, high positioning precision can be obtained, and the requirements of rapid large-area coverage can be met.

The invention discloses an anchor rope geogrid retaining structure and a method for constructing the same. Each retaining structure (1) is provided with multiple levels of side slopes; each single level of side slope structurally comprises more than two basic structural units (4); each basic structural unit comprises a lower waterproof and drainage geogrid wrapped reinforced compacted soil layer and an upper geogrid wrapped reinforced compacted soil layer; a vegetation bag is placed at a certain position of each geogrid wrapped reinforced compacted soil layer and is close to the corresponding side slope; an anchor rope is arranged at the bottom of each level of side slope, is close to a side of the side slope and is connected with geogrid of the corresponding geogrid wrapped reinforced compacted soil layer, and the geogrid of each geogrid wrapped reinforced compacted soil layer is close to the inner side of the corresponding side slope; a top waterproof structural layer is arranged on the top of the top level of flexible retaining structure; ground drainage facilities are arranged on the surfaces of the slopes and include bottom drainage ditches, platform drainage ditches and top intercepting ditches. The anchor rope geogrid retaining structure and the method have the advantages that the method and the anchor rope geogrid retaining structure are particularly applicable to repairing side slopes damaged by water, or the anchor rope geogrid retaining structure is particularly suitable to be used as a decomposed rock or soil cut slope retaining structure.

The invention discloses a tower crane foundation in a building basement and a manufacturing method of the tower crane foundation. The tower crane foundation is manufactured into an orthogonal beam slab type reinforced concrete tower crane foundation composed of an orthogonal beam and a slab. During manufacture, a pit of the tower crane foundation is dug in the building basement, and then the orthogonal beam is poured in a traditional mode of pouring reinforced concrete and the slab is poured on the orthogonal beam, and meanwhile, at least one circle of water retaining boards is fixedly inlaid around the slab; base plate surface ribs of basement base plates are embedded according to a traditional mode of pouring the basement base plates, and then the basement base plates are poured; and after the basement base plates are poured, the water retaining boards are inserted into the basement base plates around the slab, so that the orthogonal beam slab type reinforced concrete tower crane foundation is connected with the basement base plates into one. The tower crane foundation has the advantages of fastness, convenience and high efficiency in construction, low construction and operation cost, reliability in performance, safety in operation, convenience in operation and the like.

The present invention discloses a WDM layer-based OChP device and the method thereof, i.e., M protection channels are added in the transmitting module and the receiving module to connect to receiving ends and transmitting ends of M protection channels in the WDM system; a switching device is added so as to switch signals in specified working channels to specified protection channels or switch signals transmitted in specified protection channels back to specified working channels according to switching requests from the WDM system; wherein M and N are natural numbers, and M<N. Because the number M of protection channels is less than the number N of the working channels, compared with 1+1 or 1:1 protection solution, this solution helps to save optical wavelength resource and initial cost. In addition, compared with 1+1 or 1:1 protection solution, when M>1, this solution can significantly reduce the risk of ruined backup performance due to above failures, without requiring increased cost.

The invention provides a small hard rock shield tunneling machine for a mine. The small hard rock shield tunneling machine solves the problem that in the prior art, when the excavation diameter is excessive small, normal maintenance and tool changing are affected, a weak broken stratum cannot be adapted, and safety risks exist. The small hard rock shield tunneling machine comprises a front shieldbody provided with a rotating cutter head, the small hard rock shield tunneling machine is characterized in that a cutter head maintenance space is arranged at the front end of the interior of the front shield body, the front shield body is provided with small gripper shoe mechanisms, and a large gripper shoe mechanism is arranged on a gripper shoe shield at the rear of the front shield body; a propulsion hydraulic cylinder is arranged between the gripper shoe shield and the front shield body; a translational sliding frame is arranged on a belt telescopic guide groove disposed inside a tail shield body at the rear end of the gripper shoe shield, and the translational sliding frame is provided with a pipe segment erector and an anchor rod drill rig; and a telescopic main engine belt conveyor is arranged on the middle portions of the front shield body and the gripper shoe shield and in a belt telescopic guide groove in a penetrating mode. The small hard rock shield tunneling machine is reasonable in design, compact in structure and small in excavation diameter, can perform mixed support by pipe segments and anchor rods, can adapt to long distance tunneling of the weak broken stratum,and has high operation efficiency, and use is safe and reliable.

The present invention relates to a rock anchor foundation structure suitable for a mountain photovoltaic module and a construction method of the rock anchor foundation structure. A technical solution of the present invention is as follows: the rock anchor foundation structure comprises a drill hole drilled in a rock slope, an anchor rod module arranged in the drill hole and a photovoltaic power station module. The photovoltaic power station module is connected with the anchor rod module through a hollow connecting steel pipe; the photovoltaic power station module comprises a bracket welded on the top of the hollow connecting steel pipe, a beam mutually hinged with the top of the bracket and a photovoltaic cell panel arranged at the upper part of the beam. The rock anchor foundation structure of the present invention is suitable for the technical fields of around treatment and foundation engineering design.

The invention discloses an anchor pile type caisson foundation, which includes a foundation body. A bore grouting pile is arranged below the foundation body. The invention also discloses a construction technique for an anchor pile type caisson foundation which includes the following steps: (1) sinking the caisson to a designed elevation; (2) drilling and grouting concrete in the caisson to form a bore grouting pile; (3) pouring bottom sealing concrete at the lower end of the caisson to carry out bottom sealing; (4) sealing the top part of the caisson. The invention fully optimizes the characteristics of the caisson foundation and a pile foundation; has a plurality of advantages and characteristics of reducing the construction cofferdams, reducing the project amount of the foundation, fastening the construction speed and having remarkable economic benefits; has extremely high popularization and application values.

The invention discloses a prefabricated light steel fireproof load-bearing combined wall structure which is formed by fixedly connecting sandwich wallboard units on two sides and a light steel joist framework unit at the middle. Each sandwich wallboard unit comprises an A-side wall board and a B-side wall board; and an autoclaved aerated concrete slat (3) and thermal insulation cotton (2) are spaced between the A-side wall board and the B-side wall board. The light steel joist framework unit is formed by fixedly connecting a cold-formed steel upright (5), a cold-formed steel guide rail and an autoclaved aerated concrete short column (8) of which the thickness is equal to the height of a web of the cold-formed steel upright. Adjacent sandwich wallboard units on the same side are inserted into an autoclaved aerated concrete butt-joint slat (9) through grooves (13) in the long sides thereof to realize splicing. The sandwich wallboard units and the light steel joist framework unit are connected through self-tapping screws to realize wall splicing. By adopting the structure disclosed by the invention, full prefabrication can be realized, the structure is light, and the steel consumption is reduced; and moreover, the structure has the characteristics of thermal insulation, sound insulation and fire resistance and is suitable for a load bearing wall system of a multi-story building.

An objective changer for a microscope is described, comprising a changing device for transferring at least a first objective held in a first objective holder from a first stand-by position along a first transfer path into an operating position where the first objective defines an optical axis and a second objective held in a second objective holder from a second stand-by position along a second transfer path into an operating position where the second objective defines an optical axis. The first and second transfer paths differ from each other but both extend substantially perpendicular to the optical axis at least within a first area of the first transfer path and a first area of the second transfer path.

An improved plastic basket shopping cart includes a cart base having an upwardly extending rear frame section with a handle and at least three wheels rotatably mounted on the cart base. A generally rectangular box shaped plastic basket is mounted on the cart base, and includes a base wall, left and right side walls and a front wall, the side walls and the front wall having a plurality of generally rectangular wall openings having a height greater than their width, excepting those wall openings adjacent the base wall being generally square in shape for improved structural strength. Rear flange sections extend outwards and rearwards from the side walls to substantially cover the gaps between the side walls and the rear frame section. Finally, a basket rim support wire extends circumferentially around and through upper portions of the side walls and front wall and connects to the rear frame section.