CN105523460B - Elevator installation drawing generation device and elevator installation drawing generation method - Google Patents

Abstract

The present invention provides a kind of installation diagram generating means, installation drawing generating method and installation diagram generation program, can automatically generate the installation diagram for including the size between elevator structure thing.There is installation diagram generating means storage to represent the measurement point group information of three-dimensional measurement point group and represent to form the storage part of the characteristic information of the feature of the works of elevator, threedimensional model generating unit based on measurement point group information generation threedimensional model, threedimensional model is categorized into the works division of various works based on threedimensional model and characteristic information, calculate the distance between the threedimensional model of works classified apart from calculating part, and the installation diagram generating unit of the installation diagram of the threedimensional model based on the works classified and the distance generation elevator calculated.

Description

Elevator installation drawing generation device and elevator installation drawing generation method

technical field

The present invention relates to an installation diagram generation device, an installation diagram generation method, and an installation diagram generation program.

Background technique

Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2003-104650) describes an elevator installation drawing generation system, which includes: measuring the dimensions in the hoistway of the elevator to be refitted and transmitting the measured dimension data via a communication network. A measuring device, a database device for storing installation drawing creation information required for creating installation drawings and transmitting the installation drawing creation information via a communication network, and obtaining the installation drawing creation information and the above dimensional data through a communication network to generate the refitting object elevator The installation diagram after the installation diagram is generated by the terminal.

Patent Document 1: Japanese Patent Laid-Open No. 2003-104650

Contents of the invention

In the technique described in Patent Document 1, dimensional data is collected by a dimensional measuring device to generate an installation drawing. However, in the technique described in Patent Document 1, dimensions between elevator structures required for generating an installation drawing cannot be automatically extracted.

Therefore, an object of the present invention is to provide a technique capable of automatically generating an installation drawing including dimensions between elevator structures.

The present invention includes various methods for solving the above-mentioned problems, and an example thereof is an installation diagram generating device including: a storage unit that stores measurement point group information representing a three-dimensional measurement point group (point set) and feature information representing features of structures constituting the elevator; a three-dimensional model generation unit that generates a three-dimensional model based on the measurement point group information; a structure classification unit that classifies the three-dimensional model into categories based on the three-dimensional model and the feature information Various structures; a distance calculation unit that calculates distances between the classified three-dimensional models of the structures; and an installation drawing generation unit that generates elevators based on the classified three-dimensional models of the structures and the calculated distances installation diagram.

According to the present invention, it is possible to automatically generate an installation drawing including dimensions between elevator structures necessary for generating the installation drawing. Problems, configurations, effects, and the like other than those described above will be described through the description of the following embodiments.

Description of drawings

FIG. 1 is an example of a configuration diagram of an installation diagram generation device according to the present embodiment.

Fig. 2 is an example of a hardware configuration for realizing the installation diagram generation device.

Fig. 3 is an example of the operation of the installation diagram generation device.

FIG. 4 is an example of measured point cloud data.

FIG. 5 shows an example of three-dimensional measurement point cloud data plotted on three-dimensional coordinates.

FIG. 6 is an example of a three-dimensional model generated based on a measurement point group.

Fig. 7 is an example of operations for classifying three-dimensional models into structures.

Fig. 8 is an example of characteristic information of walls of an elevator hoistway.

Fig. 9 is an example of a three-dimensional model of walls classified into elevator hoistways.

Fig. 10 is an example of a three-dimensional model classified into beams.

Fig. 11 is an example of a three-dimensional model classified into columns.

Fig. 12 is an example of a three-dimensional model classified into orbits.

Fig. 13 is an example of a three-dimensional model classified into intermediate beams.

FIG. 14 is an example of a three-dimensional model classified into ridges.

Fig. 15 is an example of a generated installation diagram.

Fig. 16 is an example of an output screen.

Symbol Description

100: installation drawing generation device, 110: control unit, 120: storage unit, 130: input unit, 140: output unit, 150: communication unit, 111: 3D model generation unit, 112: structure classification unit, 113: distance calculation Section, 114: Installation drawing generation section, 121: 3D point group storage section, 122: Structure storage section

detailed description

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. However, in the following, parts having the same configuration are assigned the same reference numerals and description thereof will be omitted.

Hereinafter, the parts constituting the elevator will be described as structures. Structures specifically refer to, for example, walls, columns, beams, rails, intermediate beams, sills, etc. of elevator passageways, but are not limited thereto.

In addition, the term "installation diagram" here refers to a cross-sectional view cut along a plane perpendicular or substantially perpendicular to the elevator ascending and descending direction and a plane parallel or substantially parallel to the elevator ascending and descending direction. In the following, a cross-sectional view cut along a plane perpendicular or substantially perpendicular to the elevator ascending and descending direction will be described, but similarly, a cross-sectional view cut along a plane substantially parallel to the elevator ascending and descending direction can also be obtained.

FIG. 1 is an example of a configuration diagram of an installation diagram generation device 100 according to this embodiment. The installation diagram generating device 100 has a control unit 110 , a storage unit 120 , an input unit 130 , an output unit 140 , and a communication unit 150 .

The control unit 110 has a three-dimensional model generation unit 111 , a structure classification unit 112 , a distance calculation unit 113 , and an installation drawing generation unit 114 .

The storage unit 120 has a three-dimensional point cloud storage unit 121 and a structure storage unit 122 . The three-dimensional point cloud storage unit 121 stores measurement point cloud data (measurement point cloud information) representing a three-dimensional measurement point cloud that measures the inside of the elevator hoistway. The characteristic information indicating the characteristic of the structure of the elevator hoistway is stored in the structure storage unit 122 .

The three-dimensional model generating unit 111 generates a three-dimensional model based on the measurement point cloud stored in the three-dimensional point cloud storage unit 121 . The structure classification unit 112 classifies structures based on the three-dimensional model generated by the three-dimensional model generation unit 111 and feature information stored in the structure storage unit 122 . The distance calculation unit 113 calculates the distance between the three-dimensional models of the structures classified by the structure classification unit 112 . The installation diagram generation unit 114 generates an installation diagram of an elevator based on the three-dimensional model of the structure classified by the structure classification unit 112 and the distance calculated by the distance calculation unit 113 . Their details are described later.

Next, an example of a hardware configuration that realizes the installation diagram generation device 100 will be described. FIG. 2 is an example of a hardware configuration for realizing the installation diagram generation device 100 .

The installation diagram generation device 100 has a computing device 201 , a memory 202 , an external storage device 203 , an input device 204 , an output device 205 , a communication device 206 , and a storage medium drive device 207 .

The computing device 201 is, for example, a CPU (Central Processing Unit, central processing unit) or the like. The memory 202 is at least one of a volatile memory and a nonvolatile memory. The external storage device 203 is, for example, a HDD (Hard Disk Drive, hard disk drive) or an SSD (Solid State Drive, solid state drive) or the like. The input device 204 is, for example, a keyboard or a mouse, a microphone, and the like. The output device 205 is, for example, a display device, a printer, a speaker, and the like. The communication device 206 is, for example, a NIC (Network Interface Card, Network Interface Card) for connecting to a communication network not shown. The storage medium drive device 207 is capable of reading and writing information to any removable storage medium 208 such as a CD (Compact Disk) or a DVD (Digital Versatile Disk).

Each part of the control unit 110 can be realized by loading a predetermined program into the memory 202 and executing it by the computing device 201 .

The prescribed program may also be downloaded to the external storage device 203 from the storage medium 208 via the storage medium drive device 207 or from the communication network via the communication device 206 , then loaded into the memory 202 and executed by the computing device 201 . In addition, it may also be directly loaded into the memory 202 from the storage medium 208 via the storage medium drive device 207 or from the communication network via the communication device 206 , and executed by the computing device 201 .

Alternatively, some or all of the components of the control unit 110 may be realized by hardware through circuits or the like.

In addition, the storage unit 120 can be realized by all or a part of the memory 202 , the external storage device 203 , the storage medium drive device 207 , the storage medium 208 , and the like. Alternatively, it can also be realized by executing the above-mentioned program on the computing device 201 and controlling all or a part of the memory 202 , the external storage device 203 , the storage medium drive device 207 , and the storage medium 208 .

In addition, the input unit 130 can be realized by the input device 204 . Alternatively, it can also be realized by controlling the input device 204 by executing the above program on the computing device 201 .

In addition, the output unit 140 can be realized by the output device 205 . Alternatively, it can also be realized by controlling the output device 205 by executing the above program on the computing device 201 .

In addition, the communication unit 150 can be realized by the communication device 206 . Alternatively, it can also be realized by controlling the communication device 206 by executing the above program on the computing device 201 .

In addition, each part of the installation diagram generating device 100 may be realized by a single device, or may be realized in a distributed manner by a plurality of devices.

Next, an operation example will be described. FIG. 3 is an example of the operation of the installation diagram generation device 100 . This operation starts at an arbitrary timing such as when an operation start instruction is input, for example.

The installation drawing generation device 100 stores the measurement point cloud data input via the input unit 130 or the communication device 206 in the three-dimensional point cloud storage unit 121 as work data for processing described below (S301). However, the timing and technique for acquiring the measurement point cloud data are not limited thereto, and it may be acquired before the processing described below is performed.

Here, a specific example of the three-dimensional measurement point cloud stored in the three-dimensional point cloud storage unit 121 will be described with reference to the drawings. FIG. 4 is an example of measured point cloud data. As shown in the illustration, the measurement point group data 401 includes values of X coordinate, Y coordinate, and Z coordinate for each measurement point. FIG. 5 shows an example of three-dimensional measurement point cloud data plotted on three-dimensional coordinates. The measurement point cloud 601 is an example in which the measurement point cloud data 401 is plotted on three-dimensional coordinates.

Return to Figure 3. The three-dimensional model generating unit 111 extracts surfaces from the three-dimensional measurement point group, and generates a three-dimensional model (S302). The faces extracted here can be flat or curved. In addition, the generated three-dimensional model includes, for example, at least one of one or more planes, a cylinder, and the like. Hereinafter, a shape including an extracted plane, a cylinder, or the like is also referred to as an object.

However, the technique for generating a three-dimensional model is not particularly limited. For example, to extract a plane or a cylinder, you can use the RANSAC (RANdom SAmple Consensus, Random Sampling Consensus) algorithm to calculate the point group that matches the plane or cylinder and the shape parameters of the plane/cylinder by the least square method, or you can use any other Technology.

Other techniques for generating a three-dimensional model include, for example, the following techniques. A three-dimensional model of the structure and three-dimensional measurement values of the structure may be stored in advance in a storage device (not shown in the figure) or the like. The three-dimensional model is divided to generate a plurality of segments, and the connection relationship of the generated segments is determined. Based on a part of a plurality of segments and other segments connected to the segment, determine which of the shape characteristics as a cylinder, ring, cone, rectangle, etc. conforms to a 3D model composed of these segments . Next, shape information such as an origin, an apex, a center point, a diameter, a radius, etc. for specifying the specified shape feature is specified. The posture of the structure is specified based on the distance between the structure and the measured value corresponding to the specified shape feature and the specified shape information. A three-dimensional model can be generated based on thus determined shape features, shape information, and pose.

Additionally, other techniques can also be used. For example, a three-dimensional measurement point group may be stored in advance in a storage device (not shown in the figure) or the like. This measurement point group is divided into a plurality of three-dimensional segments, and the connection relationship of the segments is specified. Next, the long axis of the measurement point group is extracted based on the position information of the measurement point group belonging to the segment in the connection relationship. Furthermore, based on the position information of the measurement point group belonging to the segment in the connection relationship, the shape of the two-dimensional cross section of the measurement point group with respect to the long axis is extracted. A three-dimensional model can be generated by stretching the two-dimensional cross section extracted in this way in the direction of the extracted major axis.

In addition, the three-dimensional model generating unit 111 may treat a plurality of surfaces as one surface when a predetermined condition is satisfied. The predetermined condition is not particularly limited, and may be, for example, whether a side of a certain face coincides or substantially coincides with at least a part of a side of another face, or whether the respective normal vectors of a plurality of faces satisfy a predetermined condition, or the like.

Here, when a certain surface or side coincides or substantially coincides with at least a part of another surface or side, their positional relationship is also referred to as adjacency (adjacent). In addition, when a certain surface coincides or approximately coincides with at least a part of other surfaces or sides, their positional relationship is also referred to as contact.

FIG. 6 is an example of a three-dimensional model generated based on a measurement point group. The three-dimensional model 601 is composed of a plurality of surfaces. Hereinafter, a description will be given assuming that the three-dimensional model generated by the installation drawing generating device 100 of the present embodiment is a three-dimensional model including a plurality of planes.

Return to Figure 3. The structure classification unit 112 classifies the three-dimensional model into a certain structure based on the three-dimensional model and the characteristic information of the structure storage unit 122 (S303).

Here, an example of processing in S303 will be described in detail. Fig. 7 is an example of operations for classifying three-dimensional models into structures. This action is performed according to the type of structure (for example, walls, columns, beams, rails, intermediate beams, sills, etc. of the elevator hoistway).

The structure classification unit 112 performs S702 to S703 described below for each type of structure (S701, S705). However, there is no particular limitation on which of the various structures the following processes are performed in order, but at least the walls of the elevator hoistway are processed for the first time.

The structure classifying unit 112 uses the feature information of the structure storage unit 122 to specify a model matching the feature of the structure to be processed among the three-dimensional models ( S702 ). Details of S702 will be described later.

If there is a 3D model matched by the structure classifying unit 112 in S702 (S703: Yes), the process proceeds to S704 described later, and if there is no matched 3D model (S703: No), the process proceeds to S705 described later. If all types of structures have been processed, the process of S303 ends, and the processing proceeds to S304 described later; if not, then proceeds to S701, and processes other types of structures (S705).

The structural object classification unit 112 deletes the measurement point group of the three-dimensional model matched in S702 from the work data (S704), and proceeds to S702.

The processing of S702 will be described in detail. Fig. 8 is an example of characteristic information of walls of an elevator hoistway. As shown in this example, in the characteristic information 801, when each of the four planes is perpendicular or substantially perpendicular to two adjacent planes, the four planes are classified as the walls of the elevator hoistway.

In this way, feature information 801 includes the angle formed by two planes. This angle is not limited to 90 degrees as shown in FIG. 8 , and can take any value. In addition, not only a specific value but also a range can be represented.

In the process of S702, the surface corresponding to the structure among the surfaces of the three-dimensional model is specified based on the feature information as described above.

However, it is also conceivable that a structure cannot be correctly classified using only the feature information shown in FIG. 8 . Specifically, for example, in the three-dimensional model 601 shown in FIG. 6 , the three-dimensional model 611 as the wall of the elevator passageway, wherein each of the four planes (plane 612a, plane 612b, plane 612c, and plane 612d) corresponds to Two adjacent planes are orthogonal or substantially orthogonal. Also, in the three-dimensional model 612 as a column, each of the four planes (plane 622a, plane 622b, plane 622c, and plane 622d) is orthogonal or substantially orthogonal to two adjacent planes. In such a case, it is difficult to correctly classify whether the four planes are walls or columns of the elevator hoistway based only on the angle formed by the two planes.

Therefore, the feature information 801 may include not only the angle formed by the two planes as described above, but also other information. An example of the details of the feature information will be described below.

(the wall of the elevator hoistway)

For example, the structure classification unit 112 may be perpendicular to or substantially perpendicular to adjacent planes in each of the four planes as shown in the characteristic information 801, and may include other structures inside the planes. In the case of planes, these four planes are classified into the walls of the elevator hoistway. Conditions for judging whether or not a plane of another structure is included in the four planes are not particularly limited, and for example, the following conditions can be considered.

- 4 planes located outermost among the planes constituting at least a part of the three-dimensional model

-Among the areas of all planes, the areas of 4 planes are within the largest number (for example, more than 4) in descending order

-Among all the diagonals of the planes, the lengths of the diagonals of the 4 planes are in the longest number in the order from longest to shortest.

- A combination of at least two of the above

Alternatively, the structure classifying unit 112 may extract multiple (for example, four or more) planes constituting the 3D model in advance according to the above conditions, and determine whether the extracted planes are orthogonal or substantially orthogonal to adjacent planes.

Fig. 9 is an example of a three-dimensional model of walls classified into elevator hoistways. The three-dimensional model 901 is obtained by extracting a part of the plane constituting the three-dimensional model 601 shown in FIG. 6 . The three-dimensional model 901 is composed of planes 902a to 902d that are orthogonal or substantially orthogonal to adjacent planes, respectively. In addition, the structure classifying part 112 sets the longitudinal direction of the plane of the wall classified into the elevator hoisting path as the elevator hoisting direction. In FIG. 9 , the lift direction 911 shows the lift direction of the elevator. Wherein, the so-called length direction here refers to the direction along the longest side among the sides of the plane.

(beam)

As described above, since the walls of the elevator hoistway are classified in the first processing, the planes corresponding to the walls of the elevator hoistway have already been classified in the beam classification process. The structure classification unit 112 judges that a plane satisfying the following conditions corresponds to a beam.

i. Each of the four planes is orthogonal or substantially orthogonal to adjacent planes as shown in the feature information 801

ii. One of the four planes of the above i. is in contact or substantially in contact with one of the planes of the walls of the elevator hoistway

iii. Among the four planes in i. above, the longitudinal direction of the plane that is in contact with or approximately in contact with the plane of the wall of the elevator passageway is perpendicular or approximately perpendicular to the ascending and descending direction

Fig. 10 is an example of a three-dimensional model classified into beams. The three-dimensional model 1001 is obtained by extracting a part of the plane constituting the three-dimensional model 601 shown in FIG. 6 . The plane of the walls of the elevator hoistway is shown by dotted lines in the figure. The three-dimensional model 1001 is composed of planes 1002a to 1002d that are orthogonal or substantially orthogonal to adjacent planes, respectively. Wherein, the plane 1002b is a plane that is in contact or approximately in contact with the plane 902b of the wall of the lifting passage. In addition, the longitudinal direction 1003 of the plane 1002b is perpendicular or substantially perpendicular to the ascending and descending direction (the ascending and descending direction 911 ) of the elevator.

In addition, the feature information may include length conditions other than the above. The length condition can specify, for example, the distance between two opposing sides in the above-mentioned four planes, the length in the above-mentioned longitudinal direction, or the like.

(column)

In the same manner as above, when the column is sorted, the plane corresponding to the wall of the elevator hoistway is already sorted. The structure classification unit 112 judges that a plane satisfying the following conditions corresponds to a column.

i. Each of the four planes is orthogonal or substantially orthogonal to adjacent planes as shown in the feature information 801

ii. Each of the adjacent two planes among the four planes of the above i. is in contact or substantially in contact with two adjacent planes among the planes of the walls of the elevator hoistway

iii. Among the four planes in i. above, the longitudinal direction of the plane that is in contact or approximately in contact with the plane of the wall of the lift passage is parallel or approximately parallel to the lift direction of the elevator

Fig. 11 is an example of a three-dimensional model classified into columns. The three-dimensional model 1101 is obtained by extracting a part of the plane constituting the three-dimensional model 601 shown in FIG. 6 . In the figure, the plane of the wall of the elevator hoistway is shown by a dotted line. The three-dimensional model 1101 is composed of planes 1102a to 1102d that are orthogonal or substantially orthogonal to adjacent planes. Wherein, the planes 1102a, 1102c are adjacent to each other and are respectively in contact or substantially in contact with the mutually adjacent planes 902a, 902c in the plane of the wall of the lifting passage. In addition, the respective longitudinal directions 1103 of the plane 1102 a and the plane 1102 c are parallel or substantially parallel to the lifting direction 911 .

In addition, although the example in which the column is arrange|positioned at the corner part of an elevator passageway was shown above, it is not limited to this, You may arrange|position between the corner part of an elevator passageway. In this case, the above ii. may be in contact or substantially in contact with one of the planes of the walls of the elevator hoistway, and all four planes are located inside the four planes of the walls of the elevator hoistway.

In addition, the feature information may include a length condition in addition to the above. The length condition can specify, for example, the distance between two opposing sides in the above-mentioned four planes, or the length in the above-mentioned longitudinal direction, or the like.

[track]

In the same manner as above, when the rails are sorted, the planes corresponding to the walls of the elevator hoistway are already sorted. The structure classifying unit 112 judges that the plane corresponds to a track when the following conditions are satisfied.

i. The plane is parallel or roughly parallel to any plane of the wall of the elevator hoisting passage, its length direction is parallel or roughly parallel to the lifting direction, and does not touch any plane of the wall of the elevator hoisting passage

ii. A plane other than the plane of i. above is perpendicular or approximately perpendicular to the plane of i. above, and the side parallel or approximately parallel to the longitudinal direction is in contact or approximately in contact with the plane of i. above

iii. The four planes including the plane of ii. above are orthogonal or substantially orthogonal to adjacent planes as shown in the feature information 801

iii. None of the four planes in iii. above are in contact with any plane of the wall planes of the elevator hoistway

Fig. 12 is an example of a three-dimensional model classified into orbits. The three-dimensional model 1201 is obtained by extracting a part of the plane constituting the three-dimensional model 601 shown in FIG. 6 . In the figure, the plane of the wall of the elevator hoistway is shown by a dotted line. The three-dimensional model 1201 is composed of a plane 1202a and a plane 1202b to a plane 1202e. The plane 1202a is parallel or substantially parallel to the plane 902b, and its length direction 1203a is parallel or substantially parallel to the lifting direction 911, and the plane 1202a is not in contact with any plane of the wall of the elevator passageway. In addition, the plane 1202b and the plane 1202e are respectively orthogonal or approximately orthogonal to the plane 1202a, and the sides parallel or approximately parallel to the length direction 1203b are in contact with or approximately in contact with the plane 1202a. The planes 1202b to 1202e are respectively perpendicular or substantially perpendicular to adjacent planes, and do not contact any of the planes (planes 902a to 902d ) of the three-dimensional model 901 .

In addition, one plane is defined in the above i., but it is not limited thereto. The condition that each of the four planes including the plane i. above is orthogonal or substantially orthogonal to the adjacent plane may be further satisfied (for example, characteristic information 801 in FIG. 8 ). For example, among planes 1202f to 1202i in FIG. 12 , four planes including the plane i. above (plane 1202g ) are respectively orthogonal or substantially orthogonal to adjacent planes.

In addition, in the above iii., four planes that are perpendicular or substantially perpendicular to the adjacent planes are prescribed, but this condition may not be essential. For example, at least one plane such as plane 1202b or plane 1202e that is perpendicular or substantially perpendicular to the plane i. above and whose lengthwise sides are in contact or substantially in contact with the plane i. above should only be identified.

In addition, in the above iii., it is used as a condition that it does not contact any of the planes of the walls of the elevator hoistway, but it is not limited to this, and it may also include, for example, beams or columns, etc., including already classified walls of the elevator hoistway. The planes of other structures are not in contact with such conditions.

In addition, in the feature information, length conditions may be included in addition to the above. The length condition may specify, for example, the length in the above-mentioned longitudinal direction, or the side length in a direction perpendicular or substantially perpendicular to the above-mentioned longitudinal direction, or the like.

The above conditions may be further added or deleted according to the point density of the measurement point group, the measurement accuracy, the type of elevator, and the like.

(middle beam)

In the same manner as above, when classifying the intermediate girder, the plane corresponding to the wall of the elevator hoistway is already classified. The structural object classification unit 112 judges that the plane corresponds to an intermediate beam when the following conditions are satisfied.

i. The edge of the plane is in contact or approximately in contact with the plane of the wall of the elevator hoistway

ii. The side opposite to the side of the plane of the above i. is located inside the 4 planes of the wall of the elevator hoistway

iii. The length direction of the plane in i. above is perpendicular or approximately perpendicular to the lift direction of the elevator

Fig. 13 is an example of a three-dimensional model classified into intermediate beams. The three-dimensional model 1301 is obtained by extracting a part of the plane constituting the three-dimensional model 601 shown in FIG. 6 . In the figure, the plane of the wall of the elevator hoistway is shown by a dotted line. The three-dimensional model 1301 is composed of planes 1302a. Side 1303a of plane 1302a is in contact or substantially in contact with plane 902b of the hoistway wall. The side 1303b opposite to the side 1303a is located inside the planes 902a to 902d of the walls of the elevator hoistway. In addition, the longitudinal direction 1304 of the plane 1302 a is perpendicular or substantially perpendicular to the lifting direction 911 .

In addition, similar to the above, the following conditions may be further included: including four planes (corresponding to plane 1302a in FIG. The planes are respectively orthogonal or substantially orthogonal to adjacent planes (for example, feature information 801 in FIG. 8 ).

In addition, the feature information may include length conditions in addition to the above. The length condition may specify, for example, the length in the above-mentioned longitudinal direction, or the side length in a direction perpendicular or substantially perpendicular to the above-mentioned longitudinal direction, or the like.

[sill]

In the same manner as above, in the classification process of the sills, the planes corresponding to the walls of the elevator hoistway are already classified. Therefore, the structure classification unit 112 judges that the plane corresponds to a sill when the following conditions are satisfied.

i. The edge of the plane is in contact or approximately in contact with the plane of the wall of the hoistway

ii. The side opposite to the plane side of the above i. is located on the outside of the 4 planes of the wall of the lift passage

iii. The length direction of the plane in i. above is perpendicular or approximately perpendicular to the lift direction of the elevator

FIG. 14 is an example of a three-dimensional model classified into ridges. The three-dimensional model 1401 is obtained by extracting a part of the plane constituting the three-dimensional model 601 shown in FIG. 6 . In the figure, the plane of the wall of the elevator hoistway is shown by a dotted line. The three-dimensional model 1401 is composed of planes 1402a. Side 1403a of plane 1402a is in contact or substantially in contact with plane 902d of the hoistway wall. The side 1403b opposite to the side 1403a is located outside the planes 902a to 902d of the walls of the lift passage. In addition, the longitudinal direction 1404 of the plane 1402 a is perpendicular or substantially perpendicular to the lifting direction 911 .

In addition, similarly to the above, the following conditions may be further included: including four planes (equivalent to plane 1402a in FIG. The planes are respectively orthogonal or substantially orthogonal to adjacent planes (for example, feature information 801 in FIG. 8 ).

In addition, in the feature information, length conditions may be included in addition to the above. The length condition may specify, for example, the length in the above-mentioned longitudinal direction, or the side length in a direction perpendicular or substantially perpendicular to the above-mentioned longitudinal direction, or the like.

An example of feature information has been described above. As described above, the feature information shows the geometric features of the respective objects constituting the three-dimensional model. In other words, the feature information includes the positional relationship of the faces constituting the three-dimensional model with respect to other faces.

In addition, as described above, regarding the order of classification, it is possible to classify the walls of the elevator hoistway for the first time, and then classify the desired structure next time. Here, for example, after the classification of the walls of the elevator hoistway, the classification of the beams, columns, etc., and then the classification of the rails and intermediate beams may be performed, and the structures are classified in descending order of area and volume.

Return to Figure 3. The distance calculation unit 113 calculates the distance between the structures classified by the structure classification unit 112 ( S304 ). For this purpose, for example, the distance calculation unit 113 selects at least two structures, and calculates the closest point of the two three-dimensional models based on the shape parameters (such as origin position, point coordinates, radius, etc.) of the objects constituting the three-dimensional model of the selected structures. , to calculate the shortest distance between these structures. The distance calculating unit 113 may calculate the shortest distance for each combination of a plurality of structures.

Next, the installation diagram generation unit 114 generates a two-dimensional sectional view of the three-dimensional model of the structure classified by the structure classification unit 112, and adds the distance between the structures calculated by the distance calculation unit 113 to the two-dimensional cross-sectional view. distance, and generate an installation diagram of the lift access (S305).

As described above, the cross-sectional view generated here may be a plane parallel or substantially parallel to the ascending and descending direction of the elevator, or may be a plane perpendicular or substantially perpendicular to it. In addition, the number of generated cross-sectional views may be one or more, and the number is not limited. Also, the position where the cross section is generated is not particularly limited, but if the cross-sectional view at the position where the minimum distance between structures calculated in S304 is the smallest is included, it becomes easier to examine whether or not to install an elevator car.

Fig. 15 is an example of a generated installation diagram. The installation drawing 1501 includes a wall section 1511, a track section 1512, etc. of the elevator hoistway. In addition, the installation drawing 1501 includes the shortest distance 1513 from the wall of the elevator hoistway to the rail calculated by the distance calculation unit 113 . Among them, the installation drawing 1501 shows an example that also includes the dimensions 1514 inside the walls of the elevator hoistway and the dimensions 1515 between the rails. As these size values, the size values calculated in the process of S304 described above can be used.

The output unit 140 can output various information such as installation diagrams, distances, and three-dimensional models generated through the above processing at any timing.

Although not limited thereto, the output unit 140 can also perform output control as follows. Fig. 16 is an example of an output screen. The screen 1601 includes an area 1611 and an area 1621 . In the area 1611 , a part of the measurement point cloud read from the three-dimensional point cloud storage unit 121 is displayed. In area 1621, the installation diagram (two-dimensional cross-sectional diagram) generated through the above-described processing is displayed. Among the measurement point groups displayed in the area 1611 , the point groups corresponding to the cross-sectional positions used to generate the installation drawing are extracted from among all the measurement point groups.

A rail section 1622 that does not actually exist is included in the region 1621 . Such a cross section and its three-dimensional model are generated, for example, from a measurement point group due to measurement noise or the like. The user can use the input device 204 to select a point group corresponding to the track section 1622 among the measurement point groups in the area 1611 and instruct to delete it, and then press a button 1631 or the like to input an execution instruction. In addition, in FIG. 16 , the selected point group is surrounded by a dotted line 1612 for clarity.

When the above instruction is input, the installation diagram generation device 100 specifies the three-dimensional model generated using the selected measurement point group, deletes it, and the like. At this time, the installation diagram generation device 100 may remove all the measurement point groups of the three-dimensional model that have been identified from the work data. Then, the installation diagram generating device 100 performs the above-mentioned processes of S303 to S305 on the remaining three-dimensional models, and controls to display the newly generated installation diagram in the area 1621 .

In addition, it is also possible to allow the designation of the position where the installation diagram is generated on the screen 1601 . Area 1641 is an area for inputting the designation of the position for generating the installation drawing. In FIG. 16 , an example in which a measurement point group is displayed in an area 1641 and a position is designated by an arrow 1642 is shown. The user uses the input device 204 to input the designation of the location to generate the installation drawing in the area 1641, and then presses the button 1631 or the like to input an execution instruction. When the instruction is input, the installation diagram generation device 100 performs the above-mentioned processes of S303 to S305 on the three-dimensional model. In this case, in S304 and S305, calculation of the distance and creation of the installation diagram are performed at positions including the designated position. The installation diagram thus generated is displayed in area 1621 .

One embodiment has been described above. In the above-described embodiment, the three-dimensional models generated based on the three-dimensional measurement point cloud data can be classified into various structures. This makes it possible to automatically generate an installation drawing including dimensions between structures based on the three-dimensional measurement point cloud data. It is possible to classify not only the walls of the elevator passage, but also other structures such as beams and columns, rails, intermediate beams, and sills, so it is possible to automatically generate installation drawings required for design studies, etc.

In addition, since a three-dimensional model including one or more planes specified based on the measurement point group is generated, the installation drawing generation position is flexible. Therefore, for example, it is possible to realize the above-mentioned study on whether or not to install an elevator car, and to generate an installation drawing of a desired position in accordance with other purposes.

In addition, feature information shows geometric features of the three-dimensional model. In other words, the feature information shows the positional relationship of the surfaces constituting the three-dimensional model with respect to other surfaces. This makes it easy to specify only the structural objects of the elevator necessary for generating the installation drawing. In addition, it becomes easy to classify what kind of structures are.

In addition, since the minimum distance between three-dimensional models can be calculated, for example, the above-mentioned study on whether or not to install an elevator car becomes easy.

In addition, since an installation drawing including a two-dimensional sectional view of a three-dimensional model and distances between structures can be generated, the installation drawing can be generated with a minimum number of man-hours.

As mentioned above, although the invention made by this inventor was concretely demonstrated based on embodiment, this invention is not limited to the said embodiment, Various changes are possible in the range which does not deviate from the summary. For example, the above-mentioned embodiments have been described in detail for the purpose of explaining the present invention in an easy-to-understand manner, and are not necessarily limited to all the configurations described. In addition, a part of the structure of a certain embodiment can be replaced with the structure of another embodiment, or the structure of another embodiment can be added to the structure of a certain embodiment. In addition, other configurations can be added, deleted, or substituted for part of the configurations of the respective embodiments.

Claims (7)

1. An elevator installation drawing generating device is characterized in that, comprising: a storage unit that stores measurement point group information representing a three-dimensional measurement point group and feature information representing characteristics of structures constituting the elevator; a three-dimensional model generation unit that generates a three-dimensional model based on the measurement point group information; a structure classification unit that classifies the three-dimensional model into various structures based on the three-dimensional model and the characteristic information; a distance calculation section that calculates a distance between the classified three-dimensional models of the structures; and An installation drawing generating unit that generates an installation drawing of an elevator based on the classified three-dimensional model of the structure and the calculated distance. 2. The elevator installation drawing generating device as claimed in claim 1, characterized in that: The three-dimensional model generation unit generates a three-dimensional model including one or more surfaces generated based on the measurement point group information. 3. The elevator installation drawing generating device as claimed in claim 1, characterized in that: The feature information represents geometric features of the three-dimensional model. 4. The elevator installation diagram generating device as claimed in claim 3, characterized in that: The feature information indicates the positional relationship of the faces constituting the three-dimensional model with respect to other faces. 5. The elevator installation diagram generating device as claimed in claim 1, characterized in that: The distance calculating section calculates a minimum distance between three-dimensional models. 6. The elevator installation diagram generating device as claimed in claim 1, characterized in that: The installation diagram generation unit generates an installation diagram including a two-dimensional sectional view of a three-dimensional model and a calculated distance between the three-dimensional models. 7. A method for generating an elevator installation diagram of an elevator installation diagram generating device, characterized in that: The elevator installation diagram generation device includes a storage unit that stores measurement point group information representing a three-dimensional measurement point group and feature information representing characteristics of structures constituting the elevator, The method for generating the elevator installation diagram includes: A step of generating a three-dimensional model based on the measurement point group information; a step of classifying the three-dimensional model into various structures based on the three-dimensional model and the feature information; the step of calculating the distance between the classified three-dimensional models of said structures; and A step of generating an elevator installation drawing based on the classified three-dimensional model of the structure and the calculated distance.