43results about How to "Reduce the difficulty of erection" patented technology

The invention relates to an attitude testing apparatus and method based on an autocollimator. The apparatus mainly comprises the autocollimator, an optical hexahedron, a double-shaft electronic level meter and a pedestal with a leveling function. The method comprises the following steps: putting the attitude testing apparatus on a firm base, allowing the autocollimator to collimate a reflecting surface of an object, then collimating the optical hexahedron with an autocollimation gyro theodolite and measuring the included angle between the apparatus and a true north azimuth reference; starting the autocollimator for recording and retrieving of continuous data of the attitude of the reflecting surface of the object and starting the double-shaft electronic level meter for recording and retrieving of continuous data of horizontal attitude; and after completion of recording and retrieving of the data, processing the data of the autocollimator and the double-shaft electronic level meter by using a data processing method for the attitude testing apparatus so as to eventually obtain continuous changes of the attitude of the reflecting surface of the object in a geographic coordinate system, thereby meeting demands of continuous absolute measurement.

The embodiment of the invention is applicable to the technical field of communication, and discloses a building access control system, a communication method thereof and an access control outdoor unit, which are characterized in by acquiring calling information through the access control outdoor unit, and sending a first calling request to a target access control indoor unit corresponding to a target room according to the calling information; sending a second call request to the IP-PBX server when the target access control indoor unit is offline or the call is not answered when the target access control indoor unit is overtime; receiving a first door opening instruction of the target access control indoor unit or a second door opening instruction sent by the IP-PBX server, and executing adoor opening operation according to the first door opening instruction or the second door opening instruction; and enbaling the IP-PBX server to initiate a call to the public network terminal of the target user according to the second call request, obtains a second door opening instruction sent by the public network terminal of the target user, and sends the second door opening instruction to theaccess control outdoor unit. According to the embodiment of the invention, the erection difficulty is low, the later maintenance cost is low, and the stability is high.

The invention relates to a monitoring system and an application method thereof. The monitoring system comprises a panoramic camera, a high speed ball camera and a control module, wherein the panoramiccamera is used for collecting panoramic monitoring images of a specified area; the control module is used for acquiring triggering information of any target area in the panoramic monitoring image, generating a control command corresponding to the high speed ball camera according to the triggering information, and sending the control command to the high speed ball camera; and the high speed ball camera is used for collecting the target monitoring image of the target area according to the control command. According to the scheme provided by the invention, the building difficulty of the monitoring system can be reduced, and the development cost and difficulty of the background display control software can also be reduced.

The invention discloses a moving type hangar, which comprises three parts of end doors, a middle main body and an accessory. The main structure of the moving type hangar disclosed by the invention adopts the modular design; the whole hanger comprises end door modules distributed on two ends of the hangar, and multiple groups of middle main body modules, wherein the end of each group of module is provided with a port; except that the end door position is fixed, the rest modules of the hangar can be subjected to unordered mutual connection. The manufacture material of the main structure of the moving type hangar is selected from one or multiple types of PVC (polyvinyl chloride) membrane material, TPU (thermoplastic urethanes) membrane material, EVA (ethylene vinyl-acetate) membrane material, acrylic ester membrane material, neoprene membrane material, butadiene styrene rubber membrane material, ETFE (ethyl tetra fluoro ethylene) membrane material, PVDF (polyvinylidene fluoride) membrane material, PTFE (polytetrafluoroethylene) membrane material and PVF (polyvinyl fluoride) membrane material. The moving type hangar is erected with an inflation method, each group of modules can be respectively curly packaged after venting, and the moving type hangar has the advantages of strong maneuverability, simple operation process, stable and reliable performance, advanced technical index, scientific structural design, cheap and abundant raw materials and mature manufacture technology and is suitable to popularize and apply within a large range in the industry.

The invention relates to an orientation reference mirror which comprises an optical reflection mirror and an optical orientation reference mirror mounting base; the optical reflection mirror is a high-accuracy ridge prism which is installed in a ridge prism mounting base; the upper surface of the ridge prism mounting base is provided with a horizontal reference blister; a cylindrical structure at the rear part of the ridge prism mounting base is installed in a round hole of a mounting plate; a horizontal leveling mechanism on the mounting plate is installed at one side of the ridge prism mounting base; and one end of the mounting plate is articulated on an optical orientation reference mirror mounting base, and the other end of the mounting plate is installed on the optical orientation reference mirror mounting base through an orientation regulating mechanism. The orientation reference mirror provided by the invention is the orientation reference mirror based on the ridge prism, which is reasonable in design, is flexible to operate, and is simple and rapid in orientation and horizontal regulation; and by utilizing the orientation reference mirror, the erection difficulty of an auto-collimation theodolite can be lowered, the efficiency can be improved, and the accurate equipment mounting orientation can be ensured.

The invention relates to an azimuth standard lens based on a roof prism. The azimuth standard lens comprises a mounting base of the optical azimuth standard lens and the high-precision roof prism, wherein the high-precision roof prism is mounted in the mounting base of the optical azimuth standard lens; a cylindrical structure at the rear part of the mounting base of the azimuth standard lens is mounted in a round hole of a mounting plate; a horizontal leveling mechanism on the mounting plate is mounted on one side of the mounting base of the optical azimuth standard lens; one end of the mounting plate is hinged with the mounting base of the optical azimuth standard lens, while the other end is mounted on the mounting base of the optical azimuth standard lens through an azimuth adjusting mechanism; and two azimuth springs are arranged between the mounting plate near one side of the azimuth adjusting mechanisms and the mounting base of the optical azimuth standard lens. The azimuth standard lens based on the roof prism is reasonable in design and flexible to operate. The azimuth and level adjustment of the azimuth standard lens is simple and quick; and the azimuth standard lens can reduce the setup difficulty of an auto-collimation theodolite, improve the efficiency and ensure the accurate mounting azimuth of the device.

The invention discloses an outdoor sun-shading umbrella, which is composed of an umbrella rod, a plastic umbrella surface, a plastic umbrella surface storage device, an inflating device and an umbrella opening controller. The output driving end of the umbrella opening controller is connected to the driving ends of a storage motor and the inflating device; when opening information is received, the storage motor, driven by the umbrella opening controller, can drive the output shaft to do anticlockwise rotation, so that the plastic umbrella surface moves away from the interior of a storage cavity of the plastic umbrella surface storage device and then the plastic umbrella surface is unfolded; and then, the inflating device is driven to inflate the interior of an inflatable umbrella rib cavity, so that the plastic umbrella surface is unfolded. Therefore, the problem that an existing outdoor sun-shading umbrella, when used, is not easy to support, is solved. The outdoor sun-shading umbrella disclosed by the invention is convenient to take along. The outdoor sun-shading umbrella is relatively simple and convenient to fold and unfold. A storage space of the outdoor sun-shading umbrella can be saved. An umbrella body, when not used, can be kept in the umbrella surface storage device, so that corrosion of the umbrella body caused by long-term storage is effectively avoided.

The invention discloses a method for erecting parallel box girders in a tunnel. The method comprises the steps of making a bridge girder erection machine pass through the tunnel, wherein the bridge girder erection machine is conveyed to the position of the entrance of the tunnel by a girder transporting vehicle through two supports; placing the bridge girder erection machine in position, adjusting the height of the bridge girder erection machine to be matched with the height of the tunnel, making the height of a rear supporting leg, the height of a middle supporting leg and the height of a front supporting leg increase gradually, and making the surface of the bridge girder erection machine incline upwards horizontally; conducting girder feeding through the girder transporting vehicle; lifting the first box girder through the bridge girder erection machine; finishing girder feeding through the bridge girder erection machine; lowering and horizontally moving the first box girder through a front girder carrier and a rear girder carrier; taking the second box girder through the bridge girder erection machine in the same way and conducting lowering and horizontal movement of the girder; finishing girder erection. According to the method, due to the fact that the bridge girder erection machine is adopted to erect the parallel box girders in the tunnel, time is saved a lot, cost is reduced, erection of the first hole box girders with cast-in-place required in the prior art is achieved safely and smoothly, the difficulty of erecting the first hole parallel box girders in the specific tunnel-bridge connection environment is reduced, and construction safety and construction quality are guaranteed.

The invention belongs to the technical field of optical fiber cables, and particularly relates to an optical fiber cable and a manufacturing method of the optical fiber cable. The optical fiber cablecomprises a steel strand main body and an optical cable part, wherein the steel strand main body and the optical cable part are connected through a hanging belt. According to the invention, the hanging belt, a steel strand hanging ring, a wavy hanging ring, an annular spring and a hanging connection port are arranged; when a polyethylene outer sheath of the optical fiber cable cracks, the steel strand main body can be prevented from being separated from the optical cable part under the action of the hanging belt, and the pulling of the optical cable part to the steel strand main body is buffered under the mutual cooperation of the wavy hanging ring and the annular spring, so that the self-supporting capacity is indirectly improved, and the problem of damage to the optical fiber cable is avoided; and by arranging the hanging connection port, when the surface of the optical fiber cable is connected and fixed, a hanging connection acting point can be provided through the hanging connection port, a worker can conveniently hang the optical fiber cable, and the erection difficulty is reduced.

The invention discloses a high-strength tensile cable for wind power generation. The high-strength tensile cable for wind power generation comprises a conductor, an insulating layer and an inner protective layer, wherein the conductor is located in the center of the cable, sequentially wrapped by the insulating layer and the inner protective layer in an extruded mode and formed by twisting a plurality of annealed copper wires in the same direction, and aramid yarn is woven outside the inner protective layer and wrapped by an outer protective layer in an extruded mode. Because a metal reinforced layer in the prior art is replaced by the aramid yarn, the tensile property of the cable is guaranteed, the self-weight of the cable is reduced, and the production cost and erection difficulty of the cable are reduced; because the conductor is formed by twisting the annealed copper wires in the same direction, the softness of the cable is improved, the service life of the cable is prolonged, and safety in the use process is guaranteed.

The invention relates to an attitude testing apparatus and method based on an autocollimator. The apparatus mainly comprises the autocollimator, an optical hexahedron, a double-shaft electronic level meter and a pedestal with a leveling function. The method comprises the following steps: putting the attitude testing apparatus on a firm base, allowing the autocollimator to collimate a reflecting surface of an object, then collimating the optical hexahedron with an autocollimation gyro theodolite and measuring the included angle between the apparatus and a true north azimuth reference; starting the autocollimator for recording and retrieving of continuous data of the attitude of the reflecting surface of the object and starting the double-shaft electronic level meter for recording and retrieving of continuous data of horizontal attitude; and after completion of recording and retrieving of the data, processing the data of the autocollimator and the double-shaft electronic level meter by using a data processing method for the attitude testing apparatus so as to eventually obtain continuous changes of the attitude of the reflecting surface of the object in a geographic coordinate system, thereby meeting demands of continuous absolute measurement.

A mobile charging system for a parking lot comprises a charging robot which can move freely to charge vehicles in a parking lot, and a sky rail which is erected above the parking lot and is connectedwith a power supply, so that the charging robot can obtain electric power from the sky rail through a charging bow contactor. The system further comprises a charging robot maintenance management center which is used for performing charging management on the charging robot.

The invention provides a near-air blind-area-free high-gain antenna and a using method thereof. A log-periodic antenna comprises a central mast, a first antenna oscillator and a second antenna oscillator, the central mast is provided with an antenna base with the same central axis, the central position of the antenna base is provided with an antenna matcher, a plurality of obliquely upward supporting rods are evenly distributed on the antenna base in the circumferential direction, the radial distance between the supporting rods and the central mast is gradually increased from bottom to top, the lower ends of the first antenna oscillator and the second antenna oscillator are connected with the antenna matcher, and the upper ends of the first antenna oscillator and the second antenna oscillator are symmetrical about the central axis. And the inner sides of the plurality of supporting rods are spirally and upwards expanded in the same direction. The width of the antenna is reduced by increasing the circumferential size of the antenna, so that the width of the antenna is greatly compressed, the erection difficulty of the antenna is reduced, and the high-gain requirement of near field communication is met.

An embodiment of the invention provides an air rail train and a control method thereof. The air rail train comprises a body, a train guide rail, an electromagnetic guide rail, one or N pairs of suspended wings, M pairs of balance wings, a data acquisition module and a balance controller, wherein the train guide rail is mounted at the bottom of the body; the electromagnetic guide rail is used for forming a permanent-magnet virtual rail; the one suspended wing is mounted at the top of the body or the N pairs of suspended wings are symmetrically mounted on two sides of the body, and are used forgenerating suspension force perpendicular to a horizontal plane; the M pairs of balance wings are mounted at symmetrical positions on the two sides of the body, and are used for generating balance force which is perpendicular to a vertical plane; the data acquisition module is used for realizing wind force information, at each balance wing, of the two sides of the body in real time; the balance controller is used for determining the rotational speed of each balance wing according to the wind force information, and is used for controlling the rotation of each balance wing, so as to realize thebalance of the body. An air rail of the air rail train provided by the embodiment of the invention is the electromagnetic guide rail, and is easy to erect and divert compared with an air rail erectedby using steel concrete, and the erection and maintenance difficulty is greatly decreased.

The invention discloses a portable outdoor sun-shading umbrella, which is composed of a telescopic umbrella rod, an inflatable chassis, a plastic umbrella cover, a plastic umbrella cover storage device, an inflating device and an umbrella opening controller. The output driving end of the umbrella opening controller is connected to the driving ends of a storage motor and the inflating device; when opening information is received, the storage motor, driven by the umbrella opening controller, can drive an output shaft to do anticlockwise rotation, so that the plastic umbrella cover moves away from the interior of a storage cavity of the plastic umbrella cover storage device and the plastic umbrella cover is unfolded; and then, the inflating device is driven to inflate the interior of an inflatable umbrella rib cavity, so that the plastic umbrella cover is unfolded; and meanwhile, the inflating device is used for inflating the interior of the inflatable chassis, so that the inflatable chassis is inflated. Therefore, the problem that an existing portable outdoor sun-shading umbrella, when used, is not easy to support is solved. The portable outdoor sun-shading umbrella disclosed by the invention is convenient to take along. The portable outdoor sun-shading umbrella is relatively simple and convenient to fold and unfold. A storage space of the portable outdoor sun-shading umbrella can be saved. An umbrella body, when not used, can be kept in the umbrella cover storage device, so that corrosion of the umbrella body caused by long-term storage is effectively avoided.

The invention discloses an early warning method for environment risk source, and the method comprises a risk source character threshold value database storing monitoring data, a risk source information database storing the risk source position information and source strength information, the technical point is as follows: 1) calculating risk grade according to the formula, collecting risk source date of local region; 2) building risk early warning system according to the risk source; 3) setting risk source safe threshold value; 4) comparing the risk source monitoring data with the threshold value at real time, once the monitoring data is larger than the limit, calculating the over degree and giving an alarm to the head centre and branch centre. The early warning method for environment risk source can solve the problem that the system overall performance is reduced, the head centre system control load is high and the system structure is complex.

The invention relates to a foldable sightseeing platform. The foldable sightseeing platform is structurally composed of module units, connecting rods and single-rod piston-type hydraulic cylinders. The foldable sightseeing platform can be installed on an original sightseeing facility, and is convenient to install and disassemble. The module units refer to table tops with triangular structures welded on both sides. The table tops are connected by high-strength bolts and can rotate relative to each other. The connecting rods are hinged with guard rails on both sides of the module units and piston rods of the single-rod piston-type hydraulic cylinders through high-strength bolts. The single-rod piston-type hydraulic cylinders are installed between every two module units, and cylinder bodies of the single-rod piston-type hydraulic cylinders are connected with the table tops of the two module units by high-strength bolts. The foldable sightseeing platform has the characteristics of simple structure, low cost, low erection difficulty, simple operation and control, high practicability and the like.

An embodiment of the invention provides an air rail train and a control method thereof. The air rail train comprises a body, a train guide rail, an electromagnetic guide rail, one or N pairs of suspended wings, M pairs of balance wings, a data acquisition module and a balance controller, wherein the train guide rail is mounted at the bottom of the body; the electromagnetic guide rail is used for forming a permanent-magnet virtual rail; the one suspended wing is mounted at the top of the body or the N pairs of suspended wings are symmetrically mounted on two sides of the body, and are used forgenerating suspension force perpendicular to a horizontal plane; the M pairs of balance wings are mounted at symmetrical positions on the two sides of the body, and are used for generating balance force which is perpendicular to a vertical plane; the data acquisition module is used for realizing wind force information, at each balance wing, of the two sides of the body in real time; the balance controller is used for determining the rotational speed of each balance wing according to the wind force information, and is used for controlling the rotation of each balance wing, so as to realize thebalance of the body. An air rail of the air rail train provided by the embodiment of the invention is the electromagnetic guide rail, and is easy to erect and divert compared with an air rail erectedby using steel concrete, and the erection and maintenance difficulty is greatly decreased.

The invention relates to a foldable antenna mounting frame for erecting a shore-based antenna of an unmanned ship. The foldable antenna mounting frame is characterized in that: inner ends of a plurality of antenna fixing rods are respectively hinged with an upper mounting table of a central base through a plurality of fixing rod mounting bases; the outer ends of the plurality of antenna fixing rods are fixedly connected with a plurality of antenna mounting sleeves respectively; the inner ends of a plurality of antenna support rods are respectively hinged with the lower mounting table of the central base through a plurality of support rod mounting bases; the outer ends of the plurality of antenna supporting rods are respectively hinged with a plurality of inter-rod connecting pieces, and the plurality of inter-rod connecting pieces are respectively sleeved on the plurality of antenna fixing rods in a sliding manner; an inner pin hole is formed in the middle of each antenna fixing rod, and an outer pin hole is formed in each inter-rod connecting piece; when the plurality of antenna fixing rods are unfolded to a horizontal position, the inner and outer pin holes are aligned, and the positioning pins are inserted, so that the whole antenna mounting frame is in an unfolded and erected state; and when the plurality of antenna fixing rods rotate to the vertical positions around the hinge points, the antenna mounting frame is integrally in a folded state. The shore-based antenna can be rapidly and conveniently erected and is convenient to store and transport.

A fast pin inserting and extracting device is composed of a pin inserting mechanism and a power mechanism. The pin inserting mechanism is composed of an inserting pin seat, a long pin, a shaft seat, a gear shaft and a short pin. The power mechanism comprises a pin tooth ring, a shaft and the like and is arranged on an erected platform. Power is provided for the pin inserting mechanism through the power mechanism to drive the pin inserting mechanism at the end portion of a bridge section to actuate, pin insertion and extraction are performed, and connection and disconnection of bridge spans are achieved. The fast pin inserting and extracting mechanism is utilized to perform connection and disconnection between the bridge joints, personnel remote operation or operation in a safe area can be achieved, erection difficulties are reduced, and danger of erection personnel is reduced.

The invention belongs to the field of power system power transmission and distribution. The invention provides a layered direct-current power transmission system used for transmitting a large amount of renewable energy power generation distributed in different regions to a load center. The system is formed by interconnecting a high-voltage converter station and a plurality of low-voltage converterstations, and the high-voltage converter station is formed by connecting a high-end converter and a low-end converter in series. A direct-current port of the high-voltage converter station is connected to a direct-current port of the receiving-end power grid high-voltage converter station through a direct-current transmission line; the low-end converter of the high-voltage converter station is connected with the direct-current side of one or more low-voltage converter stations through a direct-current transmission line, the alternating-current side of each low-voltage converter station is connected with the alternating-current system of each low-voltage converter station, and the high-end converter of the high-voltage converter station and the alternating-current side of the low-end converter are connected to the alternating-current system where the high-voltage converter station is located. According to the topology, the geographic position of each renewable energy power station canbe arranged more conveniently, alternating current side isolation of each renewable energy power station is realized, and the total capacity of a voltage source type converter in the whole system is reduced.

The embodiment of the invention provides a fence protection device for ship hatch coaming operation and a using method of the fence protection device. The fence protection device comprises a protective beam frame and a beam frame fixing device; the protective beam frame comprises a first connecting pipe, a second connecting pipe and a third connecting pipe; the first end of the second connecting pipe and the first end of the third connecting pipe are fixedly arranged at the two ends of the first connecting pipe respectively; and the second connecting pipe and the third connecting pipe are perpendicular to the first connecting pipe, located on the same plane and parallel to each other. A first steel plate is arranged at the first end of the first connecting pipe and provided with a bolt hole; the second end of the second connecting pipe is fixedly connected with one side of a second steel plate; and a first bolt is fixedly arranged on the second side of the second steel plate and movably connected with the beam frame fixing device. By the adoption of the device, the protective fence at the hatch coaming of the ship can be rapidly erected, a plate special for a scaffold does not needto be welded to a ship body, and the problems of welding damage and paint coating damage to a strong structure of the ship body are solved.

The invention discloses a transfer device for erecting an electric power tower, and belongs to the technical field of electric power tower transportation equipment. The transfer device comprises a tractor and a flat car frame, and the flat car frame is provided with a plurality of supporting mechanisms used for bearing the electric power tower and a lifting mechanism used for lifting the end of the electric power tower; the supporting mechanism is supported at the position, close to the upper end, of the middle of the electric power tower, after the supporting mechanism supports and lifts the upper portion of the electric power tower to a certain height, the lifting mechanism grabs the lower portion of the electric power tower and rotates the electric power tower to the outer side of the flat car frame, and then the electric power tower is lowered into a foundation pit. The electric power tower can be erected by means of the transfer trolley, so that manpower is reduced, and the electric power tower erecting efficiency is improved.

The invention relates to a liquid column jet flue gas desulfurization tower, belonging to the field of flue gas purification and desulfurization technology. Said invention includes tower body, flue gas inlet connected with middle of the tower body, flue gas outlet connected with top of the tower body, double-layer demister placed in the upper portion of tower body interior, slurry collector placed in the bottom portion of tower body interior, sturry circulating pump connected with slurry collector and jet pipe connected with outlet of slurry circulating pump and placed under the flue gas inlet. Said invention also provides the structure characteristics of said flue gas desulfurization tower and connection mode of above-mentioned all the component, also provides the working principle of said flue gas desulfurization tower.

The invention relates to an azimuth standard lens based on a roof prism. The azimuth standard lens comprises a mounting base of the optical azimuth standard lens and the high-precision roof prism, wherein the high-precision roof prism is mounted in the mounting base of the optical azimuth standard lens; a cylindrical structure at the rear part of the mounting base of the azimuth standard lens is mounted in a round hole of a mounting plate; a horizontal leveling mechanism on the mounting plate is mounted on one side of the mounting base of the optical azimuth standard lens; one end of the mounting plate is hinged with the mounting base of the optical azimuth standard lens, while the other end is mounted on the mounting base of the optical azimuth standard lens through an azimuth adjusting mechanism; and two azimuth springs are arranged between the mounting plate near one side of the azimuth adjusting mechanisms and the mounting base of the optical azimuth standard lens. The azimuth standard lens based on the roof prism is reasonable in design and flexible to operate. The azimuth and level adjustment of the azimuth standard lens is simple and quick; and the azimuth standard lens can reduce the setup difficulty of an auto-collimation theodolite, improve the efficiency and ensure the accurate mounting azimuth of the device.

The present invention belongs to the field of smart street lamps, especially a combined smart street lamp. Aiming at the difficulty of erection caused by the inability to assemble and install the existing street lamp support rods, the high cost of use and the problems of a large number of insects around the street lamps at night in summer, the following proposals are now proposed : Including a support mechanism and a smart street lamp main body, the support mechanism includes a plurality of support rods, the top of the support rods is fixedly connected with a first flange, and the bottom of the support rods is fixedly connected with a second flange, the smart street lamp main body An air jet pipe is fixedly installed on the light frame of the smart street lamp, and a third flange is fixed on the bottom of the light frame of the main body of the smart street lamp, and an outer ring is fixedly sleeved on the outer side of the support rod at the top, and one side of the outer ring is fixed Installed with a sealed box, the invention realizes the combined installation of the support rods, reduces the difficulty of erecting the street lamp, and can effectively drive away insects around the street lamp, and at the same time facilitates the replacement of the mothballs, and has strong practicability.

The present invention relates to a monitoring system and an application method thereof. The monitoring system includes: a panoramic camera, a high-speed dome camera and a control module; wherein, the panoramic camera is used to collect panoramic monitoring images of a designated area; Obtaining the trigger information of any target area in the panoramic monitoring image, generating a control command corresponding to the high-speed dome camera according to the trigger information, and sending the control command to the high-speed dome camera; the high-speed dome camera The camera is configured to collect target monitoring images of the target area according to the control instruction. This solution can reduce the difficulty of setting up the monitoring system, and can also reduce the cost and difficulty of background display and control software development.