30results about How to "Accurate measurement and positioning" patented technology

The invention relates to the technical field of precast column construction, in particular to a precast column assembly construction method. The invention fixedly locates pre-embedded reinforcing barthrough a shaping template with a locating hole, then the column is positioned by using the mortar retaining formwork and the column limiting plate, brackets and adjusting jacks installed on upright posts, The utility model can make the lifting survey and positioning of the upright column accurate, improve the installation efficiency, satisfy the subsequent assembling construction of the precast cover beam, greatly improve the installation efficiency of the upright column, ensure the construction quality, reduce the input of the labor force on the construction site, shorten the time of the on-site construction operation, and promote the on-site construction and production progress.

The present invention discloses a method for measuring and locating the tops of the virtual tetrahedron of the special-shaped component. In a special-shaped node three-dimensional body, four points which are not in a same surface are chosen to form a virtual tetrahedron. The three-dimensional coordinates of the four points are calculated and the corresponding marks of the four points are marked on the real object of the node. A random point is chosen as a main control point of the node and other points are taken as auxiliary control points. When the node is hanged to the station, firstly the three-dimensional coordinate of the main control point is monitored with an electronic total station at the position of the measuring point, and on the moulding bed of the node, the adjustment is executed by means of equipment to accurately control the plan position and scale height of the main control point. The planar and vertical three-dimensional rotation adjustments are executed while the node takes the main control point as a center until when the monitored reading number of the coordinate of other three auxiliary control points is fit with the calculated value. When the node is measured and is accurately mounted, the node is welded on the positioning device of the moulding bed for temporary fixing. The method of the invention has the advantages of simple principle, reliable method, convenient realization, high work efficiency and broad application sphere.

The invention discloses a rail track measuring mark point positioning method. A rail track measuring mark point positioning device comprises a track inspection trolley, a linear laser, a controller and a power supply, wherein the track inspection trolley runs on a steel rail; the linear laser is arranged on the track inspection trolley and is perpendicular to the edge of a side part of a running direction, and a laser line emitted by the linear laser is perpendicular to the edge of the side part of a track inspection trolley body; the controller is arranged on the track inspection trolley and is used for controlling the linear laser to be switched on or off; and the power supply is arranged on the track inspection trolley and is used for supplying power to the linear laser. The track inspection trolley runs on the steel rail, and when the laser line emitted by the linear laser passes through a CPIII pile point or fixed point arranged beside the steel rail, the position, projected on the surface of the steel rail, of the laser line is a mark point position for the track inspection trolley to stop. The rail track measuring mark point positioning method described by the invention can solve the technical problems that the existing rail track measuring mark point positioning method is high in cost, low in efficiency, low in accuracy and low in degree of automation.

The invention is a noncontacting infrared temperature meter and the spacing control method. The thermometer includes infrared radiation sensor, spacing control device, processing unit and displaying device, the spacing control device mainly includes illuminant mechanism and observing mechanism, they are connected through circuit or wire. The method is: the beam transmitted by the illuminant mechanism and the observing path of the observing mechanism are crossed in the special region of the preset distance, only when the measured target is in the special region, the light spot or image projected to the measured object can be observed through the observation mechanism.

The invention provides a measuring and calibrating device for laser processing focal length and incidence angles. The device comprises a telescopic measuring ruler, a connecting rod piece and an upper measuring ruler. The telescopic measuring ruler comprises a fixed part and a movable ruler part. A laser beam incidence perpendicularity calibrating hole penetrating the movable ruler part is formed in the extension end of the movable ruler part, and concentric annular targets are arranged outside the upper hole surface and the lower hole surface of the laser beam incidence perpendicularity calibrating hole. An alignment part is arranged on the upper measuring ruler and used for aligning at a reference marked line on a laser processing head. The connecting rod piece is hinged to the fixed part of the telescopic measuring ruler and the upper measuring ruler and used for connecting the telescopic measuring ruler with the upper measuring ruler, then the measuring directions of the telescopic measuring ruler and the upper measuring ruler are parallel, and the distance between the telescopic measuring ruler and the upper measuring ruler can be adjusted and measured. Multiple measuring and calibrating manners are organically integrated, precise measuring and positioning of the laser processing focal length and incidence angles are achieved, the laser processing focal length and incidence angles are tightly combined together, measuring, adjusting and calibrating of the laser processing focal length are very convenient, and operation is easy.

The invention particularly relates to an erecting method of fair-faced concrete sheet wall arc formwork. The erecting method is characterized by comprising the following steps that 1, segmenting is conducted according to a drawing; 2, a full-automatic carving machine is used for machining and manufacturing a back ridge of a special-shaped formwork; 3 the arc-shaped back ridges are assembled; 4, a bottom formwork is laid along the back edge of a beam bottom arc section formwork through a nail gun; and 5, a main keel is placed in a disc buckle frame tray to be supported, the top of a steel channel makes contact with the protruding portion of the arc-shaped back ridge, force on the upper portion of the back ridge is transmitted to a supporting frame, meanwhile, the two sides of a column are locked through high-strength national standard bolts with the diameter being 16 mm, and inclined supporting rod pieces on the left side and the right side of a disc buckle frame are added. According to the erecting method, construction of the arc-shaped bottom of the fair-faced concrete sheet wall can be conveniently carried out, compared with other measures, the erecting method is simple, convenient and economical, the full-automatic formwork carving machine can better find out the elevation of a arc-shaped ground beam, and the erecting method is more accurate than common measurement and positioning.

The invention discloses an automatic positioning device for assisting installation of an air conditioner indoor unit, and relates to the technical field of air conditioner indoor unit installation. The automatic positioning device comprises a base, a lifting machine, a lifting platform, a laser range finder, an electric push rod, a remote controller and a controller arranged on the device. A second steering motor is arranged at the bottom of the base, the second steering motor is connected with a first bevel gear, and the first bevel gear is meshed with a second bevel gear; drivers are arranged at symmetrical positions on two sides of the bottom of the second bevel gear; a telescopic end of the electric push rod is connected with the drivers on the two sides through an arranged linkage mechanism; the controller is electrically connected with the lifting machine, a first steering motor, the second steering motor and the like; and the remote controller is in wireless data connection withthe controller. The automatic positioning device is compact in structure and has the advantages of being convenient to use and operate, capable of saving time and labor, accurate in measurement and positioning, convenient to install and capable of achieving intelligent and automatic positioning.

The invention discloses a water-level measuring device for small / mini buoyancy washing machines and an application method thereof and relates to the field of washing machines. The water-level measuring device disclosed by the invention comprises a public end and a measuring end, wherein the measuring end is arranged on the side face of an external barrel of a washing machine, the public end is arranged at the bottom of the external barrel of the washing machine, and the public end and the measuring end are respectively connected with a master control unit of the washing machine by virtue of wires. According to the scheme of the invention, the public end is arranged at the bottom of the external barrel, and measuring points are arranged on the parts (at different heights) of the external barrel, so that by using the electric conduction character of water, when the contact points at different heights are contacted with water, the corresponding measuring end is conducted, and then according to the change in resistances between the measuring end and the public end, the current position of the washing water can be obtained. The measuring end and the public end can be arranged on a same fixed plate, so that the wire layout, installation and removal of the two ends are more convenient, and the occupied space of the measuring end can be further reduced. According to the scheme of the invention, because only one contact point contacted with water is required, the device disclosed by the invention is simple in structure, small in volume, low in cost and convenient to install, and does not require complicated processing devices and analysis programs.

The invention discloses a shearing test device and test method of railway rockfill embankment. The shearing test device comprises a thrust device, a physical information detection system and a fixed steel box, wherein the thrust device comprises a pressure device, a sleeper plate, a steel plate and an adjustable horizontal rack, the sleeper plate is used for fixing the pressure device, the pressure device is arranged in the fixed steel box, PTFE plates are arranged at inner sides of two rib plates of the fixed steel box, the steel plate and the sleeper plate are arranged at one end of the pressure device, two ends of the sleeper plate are connected with the PTFE plates, and the shearing test device also comprises a pre-buried fiber. During working, experiment soil is sheared by gradual pressurization on the pressure device; and an information parameter of the pre-buried fiber is detected by an OTDR tester, a shearing surface shape is determined, the pattern of a shearing damage surfaceof the experiment soil is drawn, and the shearing strength index is calculated and obtained. The test device is simple to operate and can be used for detection of a construction site; and by the testmethod, the shearing damage surface pattern of the experiment soil can be rapidly and accurately acquired, and a rockfill material with more excellent stability is rapidly screened.

The invention discloses a monitoring device for a viscoelastic strength of blood. The monitoring device comprises a supporting plate, a detection mechanism, a vibration mechanism and a measuring cup, wherein the detection mechanism is internally provided with a laser transmitter and an angular displacement sensor; a probe is provided with a mirror surface; the vibration mechanism comprises a guide rod, a rotary ring, a driving device, a cup frame and a cup cavity; the measuring cup comprises a cup body, a cup head and a heavy block embedded in the cup head; the detection mechanism is externally sleeved with a rotary bearing; the rotary ring is fastened on the rotary bearing. According to the monitoring device for the viscoelastic strength of the blood, the vibration mechanism is used for carrying out regular vibration on a blood sample in the measuring cup to simulate a physiological environment in which in-vivo thrombi is formed; an optical lever method replaces a traditional electromagnetic measurement method to be used for detecting so that the measurement precision and the flexibility are obviously improved; the device is simple and practical in structure, small in mechanism friction, accurate in probe positioning and high in measurement precision, and can meet the requirements of current clinical blood coagulation detection analyses.

The invention relates to the technical field of precast column construction, in particular to a precast column assembly construction method. The invention fixedly locates pre-embedded reinforcing barthrough a shaping template with a locating hole, then the column is positioned by using the mortar retaining formwork and the column limiting plate, brackets and adjusting jacks installed on upright posts, The utility model can make the lifting survey and positioning of the upright column accurate, improve the installation efficiency, satisfy the subsequent assembling construction of the precast cover beam, greatly improve the installation efficiency of the upright column, ensure the construction quality, reduce the input of the labor force on the construction site, shorten the time of the on-site construction operation, and promote the on-site construction and production progress.

The invention provides a measuring tool and method for spline addendum circle diameter of disc gears, which solves the problem that the existing measuring accuracy of the addendum circle diameter of odd splines cannot meet the requirement of high precision tolerance. The inspection tool includes a frame, a positioning unit and a dial indicator; the upper surface of the frame is inclined, and a positioning platform is installed on the frame; the dial indicator and the positioning unit are respectively arranged on the upper and lower sides of the positioning platform; the positioning unit includes a V-shaped positioning block, spring, plug and positioning measuring ball; the V-shaped positioning block is installed on the frame body, and the V-shaped positioning groove of the V-shaped positioning block is close to the positioning platform. There is a stepped through hole in the V-shaped positioning block, and the positioning of the positioning measuring ball The main body is set in the large hole, and the measuring head of the positioning measuring ball protrudes out of the small hole to contact the tooth groove of the tested piece; the plug is set at the bottom of the first large hole; the spring is set in the first through hole , and is located between the plug and the positioning body; the dial gauge is installed on the frame through the locking piece; the center line of the dial gauge is collinear with the center line of the positioning ball.

The invention discloses a system and a method for monitoring the quality of an optical link of a passive optical network. Optical bragg gratings are arranged at the termination positions of each optical link of the passive optical network. An optical fiber analyzer is arranged on the local sides of the optical links, and is connected with each optical link of the passive optical network by a full-cross optical switch and a coupler. The method comprises that: the optical fiber analyzer produces and transmits testing light with testing wavelengths for link monitoring, and the testing light passes through the full-cross optical switch and the coupler, is periodically coupled with light, with working wavelengths, emitted from each port of each optical line terminal (OLT) equipment on the local side in turn, and is output to the optical links of the ports; and the optical fiber analyzer detects the fed-back testing light, extracts testing light data, compares the acquired data of a current port with own normal state data values of the port, and reports alarming and performance events if a variation exceeds a preset redundancy threshold. In the system and the method, centralized and automatic one-stop periodical monitoring is realized in the passive optical network.

The invention discloses a railway track measurement marking point positioning device and system. The device comprises a track detection car, a line laser device, a controller and a power supply, wherein the track detection car moves on steel rails; the line laser device is arranged at the edge of the side part vertical to a movement direction of the track detection car; laser line emitted by the line laser device is vertical to the edge of the side part of the track detection car; the controller is arranged on the track detection car and is used for carrying out off-on control on the line laser device; the power supply is arranged on the track detection car and supplies power to the line laser device. The track detection car moves on the steel rails; when the laser line emitted by the line laser device passes through a CPIII pipe point or a fixed point arranged beside the steel rails, the laser line is projected to a position on the surfaces of the steel rails and the position is a marking point position where the track detection car needs to be parked. With the adoption of the railway track measurement marking point positioning device and system disclosed by the invention, the technical problems of an existing railway track measurement marking point positioning manner that the cost is high, the efficiency is low, the precision is low and the automation degree is low can be solved.

The invention discloses a portable space magnetism distribution measurement system which comprises a magnetic sensor, a data collecting module, a battery, a machine frame and a distance measurement module, wherein the signal end of the magnetic sensor is connected with the data collecting end of the data collecting module, and the magnetic sensor, the data collecting module, the battery and the distance measurement module are all installed on the machine frame. The distance measurement module comprises a pull wire and a pull wire induction device, wherein the signal output end of the pull wire induction device is connected with the collected trigger signal input end of the data collecting module. When space distribution of a magnetic field in a specific area is measured, firstly, the head end of the pull wire is fixed to a start point, an operator carries the measurement system to walk along a to-be-detected path, the data collecting module is triggered through a distance signal induced by the distance measurement module, and the equally-spaced magnetic field distribution of the to-be-detected space in the walking direction can be obtained. The portable space magnetism distribution measurement system has the advantages of being accurate in distance positioning, convenient to operate and low in time cost and especially suitable for magnetism distribution measurement operations of a small outdoor area.

Provided are a steel bar measurement positioning device and a construction method thereof. The positioning device is a rectangular frame defined by sequential alternate connection of two long direction positioning scales and two short direction positioning scales or is a rectangular frame defined by sequential connection of four long direction positioning scales. The long direction positioning scales and the short direction positioning scales are perpendicular to the same plane. The long direction positioning scales are movably connected with moving clamping parts, the lower ends of the moving clamping parts are horizontally connected with positioning screws, and the tail ends of the positioning screws are located in the rectangular frame and connected with positioning pipes. According to the steel bar measurement positioning device and the construction method thereof, the problem of steel bar positioning inaccuracy is solved, so that steel bar construction quality is guaranteed, the number of scrapped components is reduced, and the prefabrication cost is reduced.

The present invention discloses a method for measuring and locating the tops of the virtual tetrahedron of the special-shaped component. In a special-shaped node three-dimensional body, four points which are not in a same surface are chosen to form a virtual tetrahedron. The three-dimensional coordinates of the four points are calculated and the corresponding marks of the four points are marked on the real object of the node. A random point is chosen as a main control point of the node and other points are taken as auxiliary control points. When the node is hanged to the station, firstly the three-dimensional coordinate of the main control point is monitored with an electronic total station at the position of the measuring point, and on the moulding bed of the node, the adjustment is executed by means of equipment to accurately control the plan position and scale height of the main control point. The planar and vertical three-dimensional rotation adjustments are executed while the node takes the main control point as a center until when the monitored reading number of the coordinate of other three auxiliary control points is fit with the calculated value. When the node is measured and is accurately mounted, the node is welded on the positioning device of the moulding bed for temporary fixing. The method of the invention has the advantages of simple principle, reliable method, convenient realization, high work efficiency and broad application sphere.

The invention belongs to the technical field of prefabricated bridge construction, and discloses a measuring and positioning device. The key points of the technical scheme include four sets of labels arranged on the side of the column, a longitudinal measuring instrument and a transverse measuring instrument erected on the bearing platform. A measurement and positioning method for the installation of bridge prefabricated columns, the key points of the technical solution include setting out the axis of the column and pasting labels, erecting a longitudinal measuring instrument, erecting a horizontal measuring instrument and a cylinder, adjusting the posture of the column according to the longitudinal monocular telescope, and using a support frame Limiting the position of the column and adjusting the posture of the column according to the horizontal monocular telescope can accurately measure and position the column, quickly correct the plane position and verticality of the column, and achieve high control accuracy.

The invention discloses a vernier caliper for measuring a shaft shoulder distance and a measuring method. The vernier caliper comprises a fine tuning nut, a screw rod, a micro-motion frame 3, a vernier scale, a main scale, a fixed measuring jaw, a clamp, a measuring head, a movable measuring jaw and a positioning block; the micro-motion frame and the vernier scale are movably installed on the main scale, the vernier scale is located on one side of the micro-motion frame, the clamp is of a U-shaped structure, a threaded hole is formed in one side of the clamp, the other side of the clamp is provided with a first bayonet, two sides of the first bayonet are symmetrically provided with inward first buckles, the clamp is clamped at two sides of the fixed measuring jaw, one end of the measuring head is provided with a second bayonet and a second groove, the other end of the measuring head is provided with an arc measuring head, two sides of the second bayonet are symmetrically provided with outward second buckles, and the second buckles extend into the clamp to be camped with the first buckles; the fixed measuring jaw is arranged in a second groove at one end of the measuring head; the top of the positioning block is clamped in the vernier scale, a first groove is formed in the positioning block, the movable measuring jaw is arranged in the first groove so that the movable measuring jaw can be fixedly connected with the positioning block, and the fine adjustment nut is fixed in an installation groove of the fine adjustment frame through a screw rod; and the screw rod penetrates through the positioning block and is connected with the vernier scale.

The invention discloses a line type testing device for rail laying construction, which comprises two completely identical fixing mechanisms arranged from front to back, and the two fixing mechanisms are respectively a first fixing mechanism located at the opposite front side and a second fixing mechanism located at the rear side. The fixing mechanism is characterized in that a winding mechanism is fixed on the upper side of the first fixing mechanism, a reference positioning mechanism is fixed on the upper side of the second fixing mechanism, a measuring tape is connected between the winding mechanism and the reference positioning mechanism, and the winding mechanism There is also a measuring belt auxiliary support mechanism under the mechanism. After the positioning is completed, the winding mechanism can tighten the measuring tape and cooperate with the measuring tape auxiliary straightening device to keep the measuring tape in a horizontal and straight state, preventing the measuring tape from forming a radian and causing a large measurement error, making the measurement more accurate; And the side of the take-up roller fits the middle right side of the rail, so that the measuring tape is stretched along the side of the rail. When encountering a bend, the distance and line type can still be accurately measured, and the scope of application is wider.

The invention discloses an automatic positioning device for auxiliary installation of an air-conditioning indoor unit, which relates to the technical field of installation of an air-conditioning indoor unit, including a base, a lift, a lifting platform, a laser rangefinder, an electric push rod, a remote controller and a The controller on the device; the bottom of the base is provided with a second steering motor, the second steering motor is connected with the first bevel gear, and the first bevel gear is meshed with the second bevel gear; the symmetrical position on both sides of the bottom of the second bevel gear Both are equipped with drivers; the telescopic end of the electric push rod is connected to the drivers on both sides through the provided linkage mechanism, the controller is electrically connected to the lift, the first steering motor, the second steering motor, etc., and the remote controller and the controller have wireless data connect. The automatic positioning device of the present invention has the advantages of compact structure, convenient operation, time saving and labor saving, accurate measurement and positioning, convenient installation and intelligent automatic positioning.

The invention discloses an air cylinder vent hole position gauge comprising a base plate. The left end of the base plate is provided with penetrating positioning through hole, and the top end of the internal part of the base plate is provided with a rotating disc. The position, which is corresponding to the rotating disc, of the upper surface of the base plate is provided with a main body, and the upper surface of the base plate is provided with a carving disc. The center of the main body is provided with a measuring hole. The right side of the measuring hole is provided with a marking gauge. A diamond bit is arranged below the marking gauge, and adjusting holes are arranged above the diamond bit. Measurement and positioning of a vent hole are enabled to be more accurate by arrangement of the annular carving disc arranged at the periphery of the main body; the main body measuring hole is equipped with a corresponding plug gauge so that the size of the diameter of the vent hole can be clearly measured and marked when the location of the vent hole is positioned; and the rotating main body is coordinated with the marking gauge in work, and any position of the external diameter of the periphery of the vent hole can be accurately and clearly marked so that the measurement result is more accurate and practicality is higher.

The invention discloses a water-level measuring device for small / mini buoyancy washing machines and an application method thereof and relates to the field of washing machines. The water-level measuring device disclosed by the invention comprises a public end and a measuring end, wherein the measuring end is arranged on the side face of an external barrel of a washing machine, the public end is arranged at the bottom of the external barrel of the washing machine, and the public end and the measuring end are respectively connected with a master control unit of the washing machine by virtue of wires. According to the scheme of the invention, the public end is arranged at the bottom of the external barrel, and measuring points are arranged on the parts (at different heights) of the external barrel, so that by using the electric conduction character of water, when the contact points at different heights are contacted with water, the corresponding measuring end is conducted, and then according to the change in resistances between the measuring end and the public end, the current position of the washing water can be obtained. The measuring end and the public end can be arranged on a same fixed plate, so that the wire layout, installation and removal of the two ends are more convenient, and the occupied space of the measuring end can be further reduced. According to the scheme of the invention, because only one contact point contacted with water is required, the device disclosed by the invention is simple in structure, small in volume, low in cost and convenient to install, and does not require complicated processing devices and analysis programs.

The invention belongs to the technical field of assembly type bridge construction, and discloses a measuring and positioning device. The device is characterized by comprising four groups of labels arranged on the side surface of a stand column, and a longitudinal measuring instrument and a transverse measuring instrument which are erected on a bearing platform. The invention further discloses a measuring and positioning method for mounting a prefabricated stand column of a bridge. According to the technical scheme, the method is characterized by comprising the steps of lofting the axis of a stand column, pasting a label, erecting a longitudinal measuring instrument, a transverse measuring instrument and an air cylinder, adjusting the posture of the stand column according to a longitudinalmonocular, limiting the stand column through a supporting frame, and adjusting the posture of the stand column according to a transverse monocular. The method has the effects that the stand column canbe accurately measured and positioned, the correction operation of the plane position and the perpendicularity of the stand column is rapidly carried out, and the control precision is high.

The invention relates to the field of automobile collision tests, and aims to provide a multifunctional automobile seat collision testing device which has advantages of high measuring and fixing accuracy and relatively high efficiency. The multifunctional automobile seat collision testing device comprises a base board, and two measuring vertical columns of which the lower ends are fixedly connected with the base board. The multifunctional automobile seat collision testing device further comprises the components of a blocking column of which two opposite ends are fixedly connected with the inside edges of the two measuring vertical columns respectively, a main board of which the width matches a distance between the inside edges of the two measuring vertical columns, a measuring block whichis fixedly connected with the upper end of the main board, and two blocks which are provided with snapping troughs with widths that match the diameter of the blocking column and are fixedly connectedwith the front end surface of the main board. A plugging fixing mechanism is arranged between the lower end of the main board and the base board. The multifunctional automobile seat collision testingdevice has advantages of high measuring and fixing accuracy, and relatively high efficiency.

The invention relates to a detector for radial bouncing by bore reference contract measurement. The device comprises a reference contrast detection mechanism and a positioning mechanism which are cooperatively connected via a positioning slot. Compared with the prior art, the detector has the advantages that requirement for measurement within a special size range can be met, a measuring head is protected, and the precision of repeated measurement is improved.

The invention relates to a breeding hen quantitative feeding device, which relates to a breeding hen quantitative feeding device of domestic animal feeding equipment, and comprises a stock tray 1, a grid 3, a stock bucket 5 and a charging measuring device inside the stock bucket 5, wherein the charging measuring device comprises a bushing-type stretchable charging pipe 10, the bottom part of the charging pipe is provided with a measuring skirt tray 11, and the charging measuring device also comprises a charging funnel 6 which is fixedly connected with the bottom part of the stock bucket and is provided with a central charging hole 7, and the central charging hole is just aligned to a charging tray conical projection 2. The breeding hen quantitative feeding device has positive effects that: the measurement scale is flexible to adjust, the charging skirt tray is flexible to pull to move from top to bottom, feed inside the stock bucket is arranged below the charging pipe skirt tray, so no resistance problem and no skirt tray clamping problem exist; and the charging funnel 6 on the bottom part of the stock bucket is fixed, and the central charging hole 7 is right aligned to the conical projection of the charging tray, and the feed is uniform to charge and distribute. The breeding hen quantitative feeding device is accurate to position the measurement, is accurate to measure the charging, so the scientific and quantitative feeding can be realized, the feeding effect is good, and the benefit is remarkable. Due to the adoption of the breeding hen quantitative feeding device, a foundation can be set for the remote automatic control of a standardized henhouse feeding line.

The invention discloses a three-dimensional curved surface form construction method of an indoor multi-curvature modeling building. The three-dimensional curved surface form construction method of the indoor multi-curvature modeling building can ensure that the indoor complex modeling building is accurately measured and positioned, measurement data is easy to obtain, measurement period is short, and measurement is accurate and controllable by constructing a three-dimensional space dot matrix measurement method based on the indoor complex modeling building, and the construction period occupied by survey lofting is greatly shortened, and the measurement accuracy is greatly improved. According to the three-dimensional curved surface form construction method of the indoor multi-curvature modeling building, the problems that the construction period is prolonged and construction cost is increased due to the fact that a large amount of high-density and high-precision measurement and positioning are needed and measurement work amount is large when a traditional measurement and positioning means is adopted for measurement and positioning of the indoor complex modeling building are solved.