AT520946A2 - Arrangement and method for the automated generation of a recommendation for a material order for a construction project - Google Patents

Abstract

An assembly (10) and method for automatically generating a recommendation for a material order for a construction project comprises a processing server (11) having an input interface (12) for receiving digital plan data of the object of the construction project. To enable a continuous flow of information from planning to ordering of materials, the arrangement (10) comprises a processing server (11) with an input interface (12) for receiving digital plan data of the object of the construction project, wherein the digital plan data at least information on functional elements, installation sites, to Include materials and locations. The processing server (11) establishes an association of at least one of the functional elements with the material on which the functional element is to be installed. The arrangement (10) further comprises a product database (15) and a trade server (21), wherein the processing server (11) has access to the product database (15) and based on the allocation of the material to the functional element based on the product database (15) the recommendation generated for the product to be ordered and the recommendation from the processing server (11) to the trading server (21) transmitted.

Description

Summary

An arrangement (10) and a method for the automated generation of a recommendation for a material order for a construction project comprises a processing server (11) with an input interface (12) for receiving digital plan data of the object of the construction project. To enable a continuous flow of information from planning to ordering material, the arrangement (10) comprises a processing server (11) with an input interface (12) for receiving digital plan data of the object of the construction project, the digital plan data including at least information on functional elements, on installation locations Include materials and locations. The processing server (11) assigns at least one of the functional elements to the material on which the functional element is to be installed. The arrangement (10) further comprises a product database (15) and a trading server (21), the processing server (11) having access to the product database (15) and the recommendation based on the assignment of the material to the functional element based on the product database (15) generated for the product to be ordered and the recommendation from the processing server (11) to the trading server (21).

(Fig- 1)

1.29

Technical field

The invention relates to an arrangement and a method for the automated generation of a recommendation for a material order for a construction project.

State of the art

Construction projects, e.g. B. those in building construction such as new buildings or complete renovations of buildings or parts of buildings are usually complex. This is due, on the one hand, to the large number of components that have to be processed or installed in an essentially predetermined sequence, and, on the other hand, to the many parties involved, from the building owner to architects, engineers, planners and suppliers to the craftsmen. Communication and coordination between the individual parties is of great importance. For example, work on the object of the construction project can be considerably delayed due to incorrect components or components delivered at the wrong time, which leads to late completion of the construction and additional costs. It is usually not possible to use the waiting time until the correct components have arrived because the subsequent steps in the construction process depend on the processing or installation of the elements and because the staggering of the work of various service providers cannot be changed at short notice.

Accordingly, the comprehensive and correct preparation and planning of work on the property and the associated deliveries of building materials are of great importance. Traditionally, the architect has created (2-dimensional) blueprints, possibly with the help of appropriate software applications. These blueprints formed the basis of the work on the property. Based on these plans, A. Material lists are generated and orders based on these material lists are then placed with the relevant suppliers. The entire process was complex and prone to errors.

Recently, integrated approaches for which the term Building Information Modeling (BIM) has become established have been used increasingly. The object of the construction project is digitally modeled, whereby in addition to the three spatial dimensions, the time sequence, costs, energy use and operation (including maintenance and servicing) can also be modeled. On the one hand, this also enables a geometric visualization of the object, i. H. of the building. On the other hand, the updating and updating of information about the construction project (e.g. regarding the components to be installed or installed on the object) is simplified. Basically, BIM enables the construction project to be depicted practically in real time. The BIM system can also be used after / 29

Completion of the object can continue to be used, e.g. B. for the maintenance and servicing of the building (facility management) and also in the context of dismantling.

It is also known, based on the BIM data, to support the coordination of the pending work or even to automate it to a large extent. Material lists can also be generated fully automatically from the BIM data, provided that the BIM data already contains sufficiently precise information on the products to be used, e.g. B. brand and type of a component to be installed. Appropriate approaches are e.g. B. in WO 2016/178453 A1 (Doalltech Co., Ltd.).

Such approaches reach their limits when the available BIM data, which for example represent the planning of the architect, does not include specific products, but only specifies functional elements. Information on the provider and type of a usable product is therefore missing. This is often the case, for example, in the area of electrical installations, where the architect's plan (possibly supplemented by the electrical planner) only specifies where lamp connection points, sockets, switches or other functional elements are to be placed. As a rule, no specific product is mentioned. This specification is usually made by a subordinate body, usually the electrical installer, when the material is actually ordered. However, this procedure is not limited to the area of electrical installations. A similar process also takes place - at least in part - in other areas, e.g. B. the sanitary, air conditioning, heating and ventilation technology or generally other building services, instead.

The subsequent specification of the specific products by another instance causes additional effort. Because this specification is largely manual, i. H. The process is complex and prone to failure by a specialist who, as before, selects suitable products based on the architect's blueprints and the specified functional elements and generates a corresponding material list. There is also no direct link between the material list and the BIM data. H. the material list corresponds to the construction project according to the planning status at the time of processing the BIM data. Updating the BIM data has no direct influence on the material list, and updating the material list on the basis of updated BIM data is again complex and in turn requires manual work steps.

Approaches for automatically specifying information on electrical functional elements are known from another context: DE 197 45 385 A1 (Elektro Ebert) relates to a method for carrying out an electrical installation in a building by technically untrained personnel. Based on a building plan of the building, an execution plan with the type and exact location / 29 of all installation points as well as with the course and length of all line sections is created. With the help of the execution plan, a parts list for the line sections and the components to be assembled at the installation points is then created, based on this a kit is then assembled, which includes pre-assembled line sections with connectors and individually pre-assembled connector sockets. There is only one type of connector socket, which can be equipped with function modules as required. The cables and connector sockets are installed as part of the raw installation, the function modules as part of the fine installation. The elements of the kit are accordingly provided in different layers in a container.

This publication is intended to enable non-specialists to carry out electrical installations. In order to get directly from an execution plan with the specification of functional elements to concrete products to be installed, only one standardized product is used for each functional element. There is therefore no problem of a clear assignment between the functional element and the product to be provided, whereby the use of modular components can additionally minimize the storage effort. However, this approach significantly limits the flexibility of those involved (client, architect and craftsman). It is not possible to choose products that optimally match the construction project, for example in terms of their quality level or their design. The approach also assumes that the entire system is operated from a single source, by a single provider. It is also a prerequisite that the functional elements in the execution plan are sufficiently specified so that the 1: 1 assignment can be made and the corresponding product certainly meets the requirements for installation at the intended location.

Presentation of the invention

The object of the invention is to provide an arrangement belonging to the technical field mentioned at the outset for automatically generating a recommendation for a material order for a construction project, which, based on plan data of the object of the construction project with the specification of functional elements, enables the identification of usable products and a high degree of flexibility having.

The solution to the problem is defined by the features of claim 1. According to the invention, the arrangement comprises

a) a processing server with an input interface for receiving digital plan data of the object of the construction project, the digital plan data comprising at least the following:

/ 29

- Information on functional elements to be installed as part of the construction project;

- Information on installation locations at which the functional elements are to be installed on the property;

- Information on materials that are to be used for building and / or room envelopes of the object;

- Information on locations where the materials are to be used;

and for establishing an assignment of at least one of the functional elements to the material on which the functional element is to be installed, based on the installation locations of the functional elements and the locations of the materials;

b) a product database in which information about products is stored, the information comprising information on the suitability of the products as a functional element for an installation on a material;

c) a trading server with an output interface for issuing a recommendation for a product to be ordered, the recommended product being a functional element which is suitable for installation on the assigned material;

wherein the processing server has access to the product database and generates the recommendation for the product to be ordered based on the assignment of the material to the functional element based on the product database, and wherein the generated recommendation is transmitted from the processing server to the trading server.

A corresponding method according to the invention for the automated generation of a recommendation for a material order for a construction project comprises the following steps:

a) receiving digital plan data of the object of the construction project, the digital plan data comprising at least the following:

- Information on functional elements to be installed as part of the construction project;

- Information on installation locations at which the functional elements are to be installed on the property;

- Information on materials that are to be used for building and / or room envelopes of the object;

/ 29

- Information on locations where the materials are to be used;

b) on the basis of the installation locations of the functional elements and the locations of the materials, assigning at least one of the functional elements to the material on which the functional element is to be installed;

c) based on a product database, based on the assignment of the material to the functional element, generating a recommendation for a product to be ordered, the recommended product being a functional element which is suitable for installation on the assigned material.

The invention is applicable to different building projects in building construction, in which components in planning documents are at least partially specified as functional elements and in which at least some of these functional elements are represented by different products depending on a material of the room and / or building envelope. For example, different products may have to be used to provide a given functional element for installation or attachment in concrete, brick, plaster, wood or another material. The invention is particularly applicable to new building projects as well as in-depth renovation, remodeling and expansion projects of existing buildings.

The term server (processing server, trading server, etc.) denotes a functional group of a data processing system. A server in the sense of the present documents can be realized by a data processing device or several data processing devices connected to one another; it is also possible to implement multiple servers using the same device, e.g. B. by virtualization or by providing individual software modules. In general, the task of a server in the sense of these documents can be performed by a corresponding software module with input and output interfaces.

The planning data are, in particular, BIM data or two- or three-dimensional CAD planning data that represent the construction project. The planning data include in particular the geometric information about the construction project, including e.g. B. the geometric arrangement of the building and room envelopes (outer and inner walls, ceilings, floors, roofs, etc.) including materialization. The materialization can, for example, be characterized by the following information (greatly simplified):

A wall A.1 solid wall A.1.1 from masonry A.1.2 made of reinforced concrete

/ 29

A.1.3 wooden A.2 lightweight wall A.2.1 based on wood A.2.1.1 Plasterboard planking A.2.1.2 Planking of fibreboard A.2.2 based on metal profiles A.2.2.1 Plasterboard planking A.2.2.2 Planking of fibreboard B blanket B.1 reinforced concrete B.1.1 raw B.1.2 suspended ceiling B.1.3 plastered B.2 Wood B.2.1 raw B.2.2 suspended ceiling B.2.3 plastered C ground C.1 reinforced concrete C.1.1 raw C.1.2 cast floor C.1.3 with flooring

etc.

Further information can relate in particular to the roof, including the roof skin and roof lining.

The planning data also include the functional elements and their positioning. In addition to functional elements, certain products can also be specifically specified, e.g. B. if these are explicitly specified by the builder or the architect.

The details of the functional elements include, in particular, the function of a certain element (e.g. socket), as well as certain requirements that the element should fulfill (e.g. number of slots, voltage to be made available, maximum current, IP protection class, etc .). It is not necessary to specify the specific provider and type.

/ 29

The information on the installation locations of the functional elements generally results directly from the planning data in which each element is assigned a location. The invention is characterized in that more detailed information on the installation (insertion in concrete wall / insertion into the cavity of a lightweight wall, etc.) of the functional elements is not absolutely necessary. The information on the installation locations preferably results exclusively from the geometric information of the plan data.

As mentioned above, the information on the materials that are to be used for building and / or room envelopes of the construction project also comes from the planning data. This also applies to the locations of these materials, which in turn result from the geometric information of the planning data.

In modern CAD systems, the information about the functional elements, their installation locations, the materials of the building and / or room envelopes as well as their geometry are stored in different layers. For example, an object that is the subject of a construction project is divided into floors, parts of floors (apartments, offices, etc.). Then symbols are added at the intended locations, which represent the functional elements. The different types of information are stored in different levels of the CAD construction plan.

The processing server according to the invention can now be operated such that it assigns at least one of the functional elements to the material on which it is to be installed on the basis of the installation locations of the functional elements and the locations of the materials. In the context of the available documents, the term on a material means that a functional element on the material (e.g. surface mounting), in the material (e.g. flush mounting), behind the material (e.g. behind a plasterboard surface of a cavity wall) or installed in a combination. A combination exists, for example, when a flush-mounted socket is installed: The inlet box is usually completely absorbed by the corresponding surface (e.g. from a wall), while the cover plate with the connection openings is arranged on the front of the wall. A purely flush mounting can result, for example, for pure junction boxes without direct access.

The assignment can be based on a comparison of the installation locations on the one hand and the locations of use on the other. In principle, it is determined for each functional element concerned which material the building and / or room envelope has at the corresponding location.

In the simplest case, the recommendation for the product to be ordered is a list of products and the corresponding numbers to be ordered. Especially with a large range of products in the product database, it is possible (and even likely) that the / 29

Combination of functional element and material, several products can be considered for the functional element. In this case, the recommendation for individual (or all) functional elements can include a list with various suitable products from which the customer can choose in a subsequent step. In cases where a functional element is required several times, it may also be possible to select different products, each with a number to be ordered. If the selection of a certain product for a certain functional element restricts the selection for other functional elements, e.g. B. because the compatibility of the functional elements must be observed, the lists concerned can be automatically adapted for the other functional elements. Even in cases where it is usually desired that all functional elements of a certain class come from the same provider or belong to the same line of a provider (e.g. to ensure a uniform design), the arrangement according to the invention can provide that after making a choice for a first functional element of a certain class this choice is adopted for the other functional elements of the class. This ensures a high level of flexibility for the customer with minimal effort.

In order to avoid selection lists and / or to prioritize the offered products in the respective selection, different criteria can be used for the selection of a single product or the ranking of the products, e.g. B. the product price, the quality level of the product, a prioritization of the product providers or the like.

The transmission of the recommendation from the processing server to the trading server can be initiated by the processing server (push) or by the trading server (pull).

Based on the product database, in which, in addition to the usual product information, assigned information about the construction process is stored, a material list can be generated automatically despite the abstract nature of the planning data. The arrangement according to the invention and the method according to the invention thus enable a continuous flow of information from planning to material ordering, even if the plan data initially only contain information about functional elements and not references to specific products. The flexibility regarding usable products is preserved.

The functional elements preferably comprise components which can be attached in or on a wall, a ceiling and / or a floor, and the information relating to materials relates to walls, ceilings and / or floors of the construction project. Especially with components that are integrated in some way into a wall, ceiling or floor, the type of this integration depends largely on the material of the wall, ceiling or floor. Depending on the material, there are different / 29

Installation methods, and different components or different mounting accessories are required for one component.

Alternatively or additionally, the functional elements include components that are to be installed at other installation locations, e.g. B. on elements such as stairs, railings or on fixed installations or devices (e.g. built-in furniture, large kitchen appliances, washing machines and tumble dryers, heating systems, air conditioning systems, ventilation, etc.). It is not imperative here that all of the components covered by the arrangement or method according to the invention require a material-dependent product selection, but it is also readily possible to process in addition to the material-dependent and material-independent functional elements.

The functional elements advantageously include connection points of an electrical installation. These can be sockets, consumer connections (e.g. for lamps, devices or other consumers) and / or switches. Especially when planning electrical installations, very often only functional elements are specified, so that the use of the arrangement or method according to the invention brings about a considerable increase in efficiency. Other functional elements of an electrical installation relate in particular to lines, line pipes (including protective pipes), distribution boxes, electricity meters and, if applicable, consumers. Individual components can already be included in the construction plans by specifying the specific product, while others are defined as functional elements and a recommendation for specific products is only generated in the context of the arrangement or method according to the invention.

The invention is also applicable to other components used in a construction project, which are implemented by different products depending on the material of the building and / or room envelope.

A recommendation can preferably be generated for a plurality of products to be ordered, in particular for all products of a given functional element class to be ordered. A functional element class includes, for example, all connection points (sockets, lamp and other consumer connections) of an electrical installation, but it can also be broader, for example, and also include switches or even cables. It is advantageous if the functional elements to be processed do not have to be selected individually (or functional elements not to be processed individually deselected), but an entire class can be selected or deselected depending on the properties recorded in the plan data. The selection or deselection can also take place automatically in the processing server, e.g. B. so that only functional element classes are taken into account that the operator of the processing server or the connected supplier offers. A / 29

Electrical wholesalers, for example, will only consider those functional elements that belong to the electrical installation, not, for example, elements of the sanitary installation.

The user and / or as part of the processing advantageously makes a selection of the functional elements to be taken into account, and then a recommendation is generated for all of these functional elements. In exceptional cases - for example, if the product database does not contain suitable products or a functional element with an incorrect functional class has been entered - a recommendation for a specific functional element can be an empty selection.

In an advantageous embodiment of the invention, different lists of materials can be created for different functional element classes. The user or operator of the processing server can then pass them on to various suppliers (e.g. electrical, sanitary, etc.).

The arrangement according to the invention preferably comprises an expiry database in which functional element and / or product-related information relating to installation work is stored. In the processing server, the products to be ordered can then be assigned to the recommendation of one of several construction phases based on the information in the process database and based on the assignment of the materials to the functional elements, the assigned construction phase indicating when the corresponding product is to be installed in the construction process.

Functional element-related information applies to all products that represent a specific functional element. For example, all sockets require a power supply. Product-related information only applies to certain products that represent a functional element. For example, switches are available that work wired and therefore require a supply line, as well as switches that function wirelessly and accordingly do not require a supply line. In addition to the need for a supply line, the information can also relate in particular to the required receiving space (e.g. for flush-mounted as opposed to surface-mounted installations), required additional elements (e.g. protective pipes) or generally to the positioning in the construction process (e.g. before or after applying the plaster). Since the processing server has information about both the functional elements and the (recommended) products, it can automatically assign the relevant information for installation work to each component.

Based on the information in the expiration database, the processing server can then determine when a (recommended) product must be installed. This can certainly result in several points in time (e.g. for an inlet box and for the socket or switch contained therein / 29). The time or the times are then assigned to the recommended product.

For example, the construction phases for a reinforced concrete-based structure can be divided as follows:

- laying (concreting);

- Shell;

- Final expansion.

However, finer gradations are also possible. Other construction phases result in different construction phases.

A separate recommendation can advantageously be generated for each of the several construction phases, the corresponding recommendation comprising the products assigned to the respective construction phase. The user thus automatically receives a compilation of the recommended products, which is broken down by construction phase and thus by delivery time or delivery period. If different parts of the building are constructed with a differently materialized building or room envelope, the same products may be present in the recommendations for different construction phases. (Of course, this also applies to products that are generally used independently of the construction phase or in several construction phases.)

After receiving an approval from an orderer for the generated recommendation from the trading server, an order for the recommended products can preferably be triggered. The user can thus trigger the order of the products at the push of a button, if necessary after manual adjustments or a manual selection from several recommended products. If the recommendations are structured according to the construction phase, the order can include several corresponding delivery times.

It is generally not desirable for material for the construction project to be delivered early and then to be stored on the construction site or in the processing company's warehouses until use. For this reason, it is also advantageous if the deliveries for an order can be broken down into construction phases. Even if this does not happen, the delivery is usually only scheduled at a time when the products are needed (at the earliest).

This means that some time passes between the ordering process and the delivery (or the individual deliveries), often several months. As a result, when the plan is changed, the order, and therefore the delivery, no longer corresponds to the latest planning status. Returns and subsequent deliveries are therefore often necessary. This can delay the construction process if it is noticed at a late stage that the required products are missing. In the context of the arrangement and method according to the invention, it can therefore be advantageous if an / 29 automated update of an order can take place on the basis of changed plan data. The following approaches are particularly suitable for this:

a) If the plan is changed, the changed plan data is transferred to the processing server. This compares the changed plan data with the original or last received plan data and, based on this, determines which functional elements are additionally required and which functional elements are no longer required. The products that are assigned to functional elements that are no longer required in an order are removed from this order. As with the processing of the original plan data, a recommendation is generated for the additional functional elements. This approach minimizes the processing effort, but has the consequence that the operator of the processing server must keep the last processed plan data, which can be undesirable.

b) If the plan is changed, the changed plan data is transferred to the processing server. As with the processing of the original plan data, this generates a recommendation for the products to be ordered. Selections of the customer in the first process can be taken over at product level if necessary. The new recommendation is compared to the previous recommendation to determine which additional products are needed or which are no longer needed, and the order is adjusted accordingly. This approach has the advantage that the previous plan data is no longer required by the processing server. However, a new selection by the customer may also be necessary for functional elements to which a product had already been assigned.

c) The processing server has permanent access to the plan data and periodically checks whether changes have taken place and whether these could lead to a change in the order. Changes can be ascertained by comparing them with stored plan data, but preferably a corresponding change or addition date is evaluated, which is usually available for digitally kept plan data. The determination as to whether a change to an order is necessary is then made in accordance with one of the approaches under points a) or b). This procedure has the advantage that the orders are always up to date and incorrect deliveries or returns are avoided if possible. However, it presupposes that the customer is ready to grant permanent access to the plan data.

From the following detailed description and the entirety of the claims, further advantageous embodiments and combinations of features of the invention result.

/ 29

Brief description of the drawings

The drawings used to explain the exemplary embodiment show:

1 shows a schematic illustration of an arrangement according to the invention for the automated generation of a recommendation for a material order for a construction project;

2 shows a plan representation of plan data of the construction project;

3 shows the plane of the geometry data of the plan representation;

4 shows the level of the material data of the plan display;

5 shows the level of the functional element data of the plan display; and

6 shows a flowchart of an inventive method for automated

Generate a recommendation for a material order for a construction project.

In principle, the same parts are provided with the same reference symbols in the figures.

Ways of Carrying Out the Invention

FIG. 1 is a schematic illustration of an arrangement according to the invention for the automated generation of a recommendation for a material order for a construction project. The arrangement 10 comprises a processing server 11 with an input interface 12. The processing server 11 is coupled via the input interface 12 to a terminal 1 of a user and receives plan data which are converted by the input interface 12 into a format which can be processed by the processing server 11 if required. The connection between the user's terminal 1 and the processing server 11 is, in particular, a secure Internet connection (TLS). The interface is designed in particular as a web-based interface. For example, the user can upload his files generated with a (CAD) planning program, whereupon they are checked by the input interface 12 and converted if necessary. The interaction with the user takes place via a web interface, the user having an account with the operator of the processing server and logging on to the server with his account details before using the service.

The plan data are then stored in a structured manner on the processing server 11 insofar as they are required for the method according to the invention. They are named according to the structure of / 29

Object (building, floors, rooms), which is described by the planning data. As described in more detail below, the planning data stored on the server comprise several levels, in particular with information on the geometry of the object, on the materialization of building and spatial envelopes and on functional elements and their placement in the object. If necessary, the user has the option of changing the scope of the plan data to be processed, e.g. B. with regard to the functional element class and / or the parts of the object to be taken into account, via the web interface.

The processing server 11 has access to a product database 15 and an expiration database 16. One or both databases 15, 16 can be arranged locally, at the server location, or the access takes place via a local area network (LAN) or a wide area network (WAN), e.g. B. based on the Internet.

The product database 15 includes information on products that can be used in the context of construction projects. In addition to the usual product information (manufacturer, type, price, characterizing variables such as dimensions, connection values, etc.), the product database 15 also contains the information for each product which functional element it represents (e.g. switches, switches / socket combinations, distribution boxes, etc.) , at a level that corresponds to the level of detail of the usual planning data. Each product is also assigned 15 possible types of installation in the product database (e.g. flush-mounting, surface-mounting, ceiling mounting, floor mounting, etc.). The additional data on the function and the types of installation can be stored in the same database as the usual product data or they are stored in a separate database and linked to the usual product data.

The processing server 11 continues to communicate with a trading server 21. This interacts with the end device 1 of the user via an output interface 22. The trading server 21 can be operated by the same service provider as the processing server or by a third party, namely a dealer who offers suitable products. It is possible for the processing server 11 to communicate with a number of trade servers in order to e.g. B. To make products of different functional element classes (e.g. electrical installation, sanitary installation, HVAC, etc.) and / or different providers or manufacturers available

FIG. 2 is a plan representation of plan data of the construction project. In favor of an improved overview, the representation is simplified compared to a real example in terms of the number and the level of detail of the elements shown. The plan view shows an essentially square floor plan of a building floor with a circumferential outer wall 30 which is repeatedly broken through by windows 31.1 ... 31.8. Surrounded by the outer wall 30 and adjoining this / 29, several inner walls 35.1 ... 35.6 run. A staircase 36 from a lower floor is arranged between two of the inner walls 35.1, 35.2. A first space 37.1 is formed between the two inner walls 35.2, 35.3, a second space 37.2 between the inner walls 35.3, 35.4, a third space 37.3 between the inner walls 35.4, 35.5 and a fourth space 37.4 between the inner walls 35.6, 35.1. A storage chamber 37.5 is also formed between the inner walls 35.5, 35.6.

The stairs 36 and the four rooms 37.1 ... 4 and the storage room 37.5 are connected by a hallway 38; this is essentially delimited by two inner walls 35.2, 35.5. Three of the rooms 37.2, 37.3, 37.4 have doors opening into the interior of the room, the first room 37.1 adjoins the hallway 38 without a door.

In the fourth room 37.4, a front wall 39 is also arranged along the inner wall 35.1.

The elements described so far are stored on one level in the geometric data of the plan data. FIG. 3 shows a plan view in which only the geometry data are shown.

The material data level is also included in the plan data. These are shown in FIG. 4 and can also be seen from the overall overview in FIG. 2. From the material data it can be seen that the outer wall 30 is a reinforced concrete wall (hatched), that the inner walls 35.1.6 are lightweight walls, formed from metal stands with plasterboard planking (widely hatched), and that the front wall 39 is formed by a wooden structure with wooden planking (dashed horizontally). Also included in the material data is that the ceiling is a reinforced concrete ceiling.

The functional elements level is also included in the planning data. The corresponding functional elements are shown in the overall view in accordance with FIG. 2 and in the plane view in accordance with FIG. 5 (the outlines of the outer wall and the inner walls which do not belong to the functional elements level being shown in dashed lines for orientation). The functional elements comprise a series of switch / socket combinations 41.1.41.5, which are each arranged next to a door or an entrance to one of the rooms 37.1.5 on the respective inner wall 35.1.35.6. Another switch / socket combination 41.6 is arranged on the outer wall 30 in room 37.1. Furthermore, the functional elements include a number of sockets 42.1.42.8, the z. T. on inner walls 35.3, 35.5, z. T. on the outer wall 30 and z. T. are arranged on the pretext 39. Lamp connections 43.1.43.4 are also arranged in the ceiling (reinforced concrete). Finally, a motion detector 44 is arranged on the ceiling of the hallway 38 and a ceiling connection box 45 in the area of the front wall 39.

/ 29

The functional elements level says nothing about the specific products to be used. The functional elements merely indicate which function is desired at a particular location.

Finally, the Products level is included in the planning data. In the simplified example shown, this only includes the washing machine 51. It is therefore not shown in a separate illustration, but only in the overview shown in FIG. 2.

FIG. 6 is a flow chart of a method according to the invention for the automated generation of a recommendation for a material order for a construction project.

First, the plan data is received from the processing server (step 101). This is done in particular via a web interface to which the processing server is connected and to which the user has access. Access is password protected and the connection between the user and the web interface is secured (e.g. using TLS). If necessary, the plan data is converted and then (temporarily) saved on the processing server. The user has the option of entering additional information via the web interface. If the data cannot be read or is incomplete, a corresponding message is displayed to the user so that missing information can be supplied or the data can be uploaded in a readable format.

The next step in the processing server is the assignment between the functional elements and the material, on or on which they are to be installed. For this purpose, the information on the functional element and material data levels is linked. Specifically, the assignment to the material specified in the material data level is made for each functional element contained in the functional elements level based on its position (step 102). The following assignment results in the exemplary embodiment shown:

Functional element level Material data level functional element kind module material 41.1 Switch / socket Inner wall 35.2 lightweight 41.2 Switch / socket Inner wall 35.3 lightweight 41.3 Switch / socket Inner wall 35.5 lightweight 41.4 Switch / socket Inner wall 35.6 lightweight 41.5 Switch / socket Inner wall 35.6 lightweight 41.6 Switch / socket Outer wall 30 reinforced concrete 42.1 socket Outer wall 30 reinforced concrete

/ 29

42.2 socket Outer wall 30 reinforced concrete 42.3 socket Inner wall 35.3 lightweight 42.4 socket Inner wall 35.3 lightweight 42.5 socket Outer wall 30 reinforced concrete 42.6 socket Inner wall 35.5 lightweight 42.7 socket Outer wall 30 reinforced concrete 42.8 socket Excuse 39 wood construction 43.1 lamp connection blanket reinforced concrete 43.2 lamp connection blanket reinforced concrete 43.3 lamp connection blanket reinforced concrete 43.4 lamp connection blanket reinforced concrete 44 motion detector blanket reinforced concrete 45 Ceiling junction box blanket reinforced concrete

Next, the first identified functional element 41.1 is queried in the product database (step 103). This results in a list of corresponding products (switches / sockets) that are suitable for mounting on the appropriate material (lightweight wall as described above). If the material data in relation to the material specification at a particular installation location is ambiguous, all products are listed which are suitable for any installation type that is possible at that location.

A check is now made as to whether the list is empty, comprises a single entry or comprises several entries (decision 104). If the list is empty, it is noted for the corresponding functional element 41.1 that no corresponding product is available. If the list includes several entries, a ranking is carried out according to predetermined criteria (e.g. price ascending, quality level, manufacturer, selections already made by the user) (step 105), then a selection query is made to the user via the web interface. The latter can select the desired product from the ranked list (step 106). He can also choose to automatically make the same selection for corresponding future queries (identical combination of functional element and material).

If the list contains only one entry or after selection of a product, a construction phase is assigned to this product using the expiry database (step 107). With the switch / socket combination 41.1, which is to be installed in a lightweight wall, this is the final stage.

/ 29

The product and the construction phase or the information that no product is available is then stored in a material list (step 109).

The next step is to check whether further functional elements are to be processed (decision 110). If this is the case, the method for the next functional element is continued from step 103.

If no further functional elements are to be processed, the definitive material list is generated from the material list (step 111). In particular, several products that are required in the same construction phase are combined.

Products that are already specified in the planning data (e.g. the washing machine 51) can be automatically added to the material list if they correspond to the functional element classes taken into account.

The material list is then sorted and displayed according to construction phases (step 112) and the user is asked whether a corresponding order should be triggered (step 113). At this point, the user has the option of manually completing the material list, moving products from one construction phase to another, or entering the desired delivery dates directly. For this purpose, the material list can be displayed, filtered and sorted in different views. If the user places an order (decision 114), it is forwarded to the trading server (step 115). If not, the material list is saved temporarily so that the user can call it up again at a later time.

The material lists and / or the definitive orders with the corresponding product information can be fed back to the user via an interface. They can therefore be included in the planning data. The planning data (if necessary) and the product-related information can also be kept on the processing server or a connected database. If a replacement part for a defective or worn part has to be procured at a later time, the user can trigger the order for the same item by simply specifying the installation location (and, if applicable, the type of functional element), after which the processing server uses the product information stored depending on the installation location.

The material lists or triggered orders can be linked to an on-site project database, in which a timeline is stored, which is continuously updated with the construction progress and the planned work. If a work is postponed, the delivery date for the associated products is automatically adjusted so that the required components are delivered to the site at the right time.

/ 29

The invention is not restricted to the exemplary embodiment shown. It can also be used to order other elements, e.g. B. for lines. It can not only be used on components for electrical installation, but is also suitable for various components that are installed depending on the material.

Processing and user guidance can be done in a different way. Instead of asking the user to make a selection for each multi-value product list, the entire material list can first be compiled (some points being designed as selection points). Only in a next step will the user make the necessary selections within the entire material list.

Instead of directly triggering the order (s) based on the - if necessary adjusted - material list, a shopping basket solution can also be used. The entire material list, the partial list for a construction phase and / or individual products can then be placed in the shopping cart by the user via a web interface, in particular the trading server.

In summary, it can be stated that the invention provides an arrangement for the automated generation of a recommendation for a material order for a construction project, which, based on plan data of the object of the construction project with the specification of functional elements, enables the identification of usable products and is highly flexible.

Claims (14)

1. Arrangement (10) for the automated generation of a recommendation for a material order for a construction project, comprising a) a processing server (11) with an input interface (12) for receiving digital plan data of the object of the construction project, the digital plan data comprising at least the following: - Information on functional elements to be installed as part of the construction project; - Information on installation locations at which the functional elements are to be installed on the property; - Information on materials that are to be used for building and / or room envelopes of the object; - Information on locations where the materials are to be used; and for establishing an assignment of at least one of the functional elements to the material on which the functional element is to be installed, based on the installation locations of the functional elements and the locations of the materials; b) a product database (15) in which information about products is stored, the information including information on the suitability of the products as a functional element for an installation on a material; c) a trading server (21) with an output interface (22) for issuing a recommendation for a product to be ordered, the recommended product being a functional element which is suitable for installation on the assigned material; wherein the processing server (11) has access to the product database (15) and generates the recommendation for the product to be ordered based on the assignment of the material to the functional element based on the product database (15), and wherein the generated recommendation from the processing server (11) to the Trade server (21) is transmitted. 2. Arrangement (10) according to claim 1, characterized in that the functional elements comprise components which can be attached in or on a wall, a ceiling and / or a floor and that the information about materials on walls, ceilings and / or floors of the object. 21/29 3. Arrangement (10) according to claim 2, characterized in that the functional elements include connection points, in particular sockets, lamp and other consumer connections, and / or switches of an electrical installation. 4. Arrangement (10) according to one of claims 1 to 3, characterized in that a recommendation for a plurality of products to be ordered can be generated in the processing server (11), in particular for all products to be ordered of a given functional element class. 5. Arrangement (10) according to claim 4, characterized by an expiration database (16), in which functional element and / or product-related information about installation work is stored, the processing server (11) being based on the information in the expiration database (16) and the assignment of the materials to the functional elements, the products to be ordered can be assigned to the recommendation of one of several construction phases, the assigned construction phase indicating when the corresponding product is to be installed in the construction process. 6. The arrangement (10) according to claim 5, characterized in that a separate recommendation can be generated for each of the several construction phases, the corresponding recommendation comprising the products assigned to the respective construction phase. 7. Arrangement (10) according to any one of claims 1 to 6, characterized in that an order of the recommended products can be triggered after receipt of an approval from an orderer for the generated recommendation from the trading server (21). 8. A method for the automated generation of a recommendation for a material order for a construction project, comprising the following steps a) receiving digital plan data of the object of the construction project, the digital plan data comprising at least the following: - Information on functional elements to be installed as part of the construction project; - Information on installation locations at which the functional elements are to be installed on the property; - Information on materials that are to be used for building and / or room envelopes of the object; - Information on locations where the materials are to be used; 22/29 b) on the basis of the installation locations of the functional elements and the locations of the materials, assigning at least one of the functional elements to the material on which the functional element is to be installed; c) based on a product database (15), based on the assignment of the material to the functional element, generating a recommendation for a product to be ordered, the recommended product being a functional element which is suitable for installation on the assigned material. 9. The method according to claim 8, characterized in that the functional elements comprise components which can be attached in or on a wall, a ceiling and / or a floor and that the information about materials relates to walls, ceilings and / or floors of the object , 10. The method according to claim 9, characterized in that the functional elements connection points (sockets, lamp and other consumer connections) and / or switches one Electrical installation include. 11. The method according to any one of claims 8 to 10, characterized in that a recommendation is generated for a plurality of products to be ordered, in particular for all products to be ordered of a given functional element class. 12. The method according to claim 11, characterized in that based on the assignment of the materials to the functional elements, the products to be ordered are assigned to the recommendation of one of several construction phases, the assigned construction phase indicating when the corresponding product is to be installed in the construction process. 13. The method according to claim 12, characterized in that a separate recommendation is generated for each of the plurality of construction phases, the corresponding recommendation comprising the products assigned to the respective construction phase. 14. The method according to any one of claims 8 to 13, characterized by the further step of triggering an order after receipt of approval from an orderer for the generated recommendation.